Machine head assembly and fan

Abstract

The utility model relates to a machine head assembly and a fan, the machine head assembly comprises a machine head body, a head shaking motor, a transmission mechanism and a clutch mechanism, the transmission mechanism is arranged between the head shaking motor and the machine head body, and the transmission mechanism has a transmission state and a non-transmission state; in the transmission state, the transmission mechanism is in transmission connection with the head shaking motor and the machine head body, and the head shaking motor can drive the machine head body to rotate through the transmission mechanism. The clutch mechanism is in transmission connection with the transmission mechanism and is configured to be capable of driving the transmission mechanism to be switched between a transmission state and a non-transmission state. According to the machine head assembly, the head shaking motor can drive the machine head body to rotate through the transmission mechanism in the transmission state, and when the transmission mechanism is in the non-transmission state, the head shaking motor cannot drive the machine head body to rotate through the transmission mechanism any more. Therefore, even if the head shaking motor is started, the machine head assembly can control the transmission mechanism to be switched to the non-transmission state through the clutch mechanism, so that the machine head body stops shaking the head under the driving of the transmission mechanism.

Description

TECHNICAL FIELD

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

[0002] Circulating fans are widely used due to their advantages of more uniform air flow, energy saving and the like. A circulating fan usually consists of a body and a head. In order to improve the air supply range, some circulating fans have a head-tilting function. Specifically, the head-tilting function includes up-down head-tilting and left-right head-tilting.

[0003] In the related art, most circulating fans are provided with two head-tilting motors for realizing the up-down head-tilting and the left-right head-tilting functions respectively. The up-down head-tilting and the left-right head-tilting functions are realized by respectively controlling the start and stop of the two head-tilting motors. In other words, each head-tilting motor is fixedly corresponding to a specific direction of head-tilting. When the head-tilting in a certain direction is stopped, the corresponding head-tilting motor must also be stopped, so that the head-tilting motor cannot be flexibly applied. SUMMARY

[0004] Therefore, it is necessary to provide a fan head assembly and a fan capable of stopping head-tilting without stopping the head-tilting motor.

[0005] A fan head assembly for a fan, comprising a head body, a head-tilting motor, a transmission mechanism and a clutch mechanism. The transmission mechanism is arranged between the head-tilting motor and the head body. The transmission mechanism has a transmission state and a non-transmission state. In the transmission state, the transmission mechanism is in transmission connection with the head-tilting motor and the head body. The head-tilting motor can drive the head body to rotate through the transmission mechanism. The clutch mechanism is in transmission connection with the transmission mechanism and is configured to drive the transmission mechanism to switch between the transmission state and the non-transmission state.

[0006] In one embodiment, the transmission mechanism comprises a first gear and a second gear. The first gear is configured to be movably arranged and has a transmission position and a non-transmission position. The clutch mechanism is in transmission connection with the first gear and is configured to drive the first gear to switch between the transmission position and the non-transmission position.

[0007] When the first gear is in the transmission position, the first gear is in mesh with the second gear, and the transmission mechanism is in the transmission state. When the first gear is in the non-transmission position, the first gear is out of mesh with the second gear, and the transmission mechanism is in the non-transmission state.

[0008] In one of the embodiments, the clutching mechanism comprises an operating member and a catch, the operating member has a driving portion and a locking portion, the driving portion is matched with the first gear, the operating member drives the first gear to move through the driving portion; when the operating member drives the first gear to move to the transmission position and / or the non-transmission position, the locking portion is engaged with the catch.

[0009] In one of the embodiments, the operating member is configured to be able to move to the locking portion engaged with the catch in an engaging direction; the clutching mechanism further comprises a first elastic member, the first elastic member is matched 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 engaging direction;

[0010] The catch has a first guide surface, the first guide surface intersects with the engaging direction and is used to generate a guide to engage into the catch;

[0011] The clutching mechanism further comprises a second elastic member, the operating member further has an unlocking portion, the unlocking portion is located upstream of the locking portion in the engaging direction, the unlocking portion has a contact surface and a second guide surface, the contact surface is located downstream of the second guide surface in the engaging direction; the unlocking portion is configured to be able to move relative to the locking portion in a direction parallel to the engaging direction, the second elastic member is located between the locking portion and the unlocking portion and can be compressed to abut the contact surface against the locking portion; the second guide surface intersects with the engaging direction and is used to generate a guide to disengage from the catch.

[0012] In one of the embodiments, the operating member is configured to be able to push the first gear to move in the engaging direction, the clutching mechanism further comprises a third elastic member, the third elastic member is matched with the first gear and is configured to provide a driving force to drive the operating member to move in a direction opposite to the engaging direction.

[0013] In one of the embodiments, the head body is configured to be rotatable around a first axis, the transmission mechanism further comprises a gear rack, the gear rack is arranged on the head body and around the first axis;

[0014] The first gear is in transmission connection with the head motor and has a first conical tooth portion; the second gear has a second conical tooth portion and a second cylindrical tooth portion, the second cylindrical tooth portion is in mesh with the gear rack, when the first gear is in the transmission position, the second conical tooth portion is in mesh with the first conical tooth portion, when the first gear is in the non-transmission position, the second conical tooth portion is separated from the first conical tooth portion.

[0015] In one of the embodiments, the head assembly further comprises a housing having an assembly slot extending in a direction parallel to the engaging direction, and the operation member is disposed in the assembly slot and configured to be movable along the assembly slot; the operation member further has a pressing portion at least partially located outside the housing.

[0016] In one of the embodiments, the head assembly further comprises a mounting base having a post extending in a direction parallel to the engaging direction and having a shaft hole in the post, and the gear shaft of the first gear is rotatably disposed in the shaft hole, and the third elastic member is disposed in the shaft hole and in abutment with the gear shaft of the first gear.

[0017] In one of the embodiments, the head assembly further comprises a mounting base, and the buckle is disposed in the mounting base, and the buckle is a ring-shaped buckle, and the first elastic member is disposed in the buckle and in abutment with the operation member.

[0018] In one of the embodiments, the head assembly further comprises an assembly support, a first rotating base and a second rotating base, the head body is rotatably disposed in the assembly support about a first axis, the first rotating base and the second rotating base are rotatably connected about a second axis, and the second axis is perpendicular to the first axis; the assembly support is disposed in the first rotating base, and the second rotating base is used to fixedly connect the body assembly of the fan.

[0019] The head motor is drivingly connected to the head body through the transmission mechanism to drive the head body to rotate about the first axis, and the head motor is drivingly connected to the second rotating base to drive the first rotating base and the second rotating base to rotate relative to each other.

[0020] In one of the embodiments, the head motor has a first output shaft and a second output shaft, the first output shaft is drivingly connected to the head body, and the second output shaft is rotationally connected to the second rotating base about the second axis.

[0021] A fan comprising the head assembly as described above.

[0022] The aforementioned head assembly and fan, including the oscillating motor, enable the head body to rotate via a transmission mechanism in the active state. Conversely, when the transmission mechanism is in the inactive state, the oscillating motor can no longer drive the head body to rotate. Thus, even with the oscillating motor active, the head assembly can use a clutch mechanism to switch the transmission mechanism to the inactive state, stopping the head body's oscillation caused by the transmission mechanism. The active oscillating motor can still output torque to drive the head body to rotate in other directions, achieving bidirectional oscillation when the transmission mechanism is active, unidirectional oscillation when the transmission mechanism is inactive, or other driving functions. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the structure of a fan with a head assembly in one embodiment of this application.

[0025] Figure 2 for Figure 1 The diagram shows the exploded structure of the fan.

[0026] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the fan.

[0027] 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 latch.

[0028] Figure 5 for Figure 4 The diagram shows an enlarged view of the fan at point B.

[0029] 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 buckle at point A.

[0030] 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 is engaged with the latch.

[0031] Figure 8 for Figure 3 The diagram shows a partial structural schematic of the operating components in the fan.

[0032] Figure 9 The structure diagram of the locking part in the fan shown in FIG. 1. Figure 3

[0033] Figure 10 The structure diagram of the unlocking part in the fan shown in FIG. 1. Figure 3

[0034] Figure 11 The structure diagram of the first gear in the fan shown in FIG. 1. Figure 3

[0035] Figure 12 The structure diagram of the second gear in the fan shown in FIG. 1. Figure 3

[0036] Figure 13 The structure diagram of the driving gear in the fan shown in FIG. 1. Figure 3

[0037] Figure 14 Another angle sectional structure diagram of the fan shown in FIG. 1. Figure 1

[0038] Figure 15 The enlarged structure diagram of the fan at C shown in FIG. 1. Figure 14

[0039] Figure 16 The structure diagram of the mounting seat in the fan shown in FIG. 1. Figure 1

[0040] Figure 17 The exploded structure diagram of the head body in the fan shown in FIG. 1. Figure 1

[0041] Figure 18 The structure diagram of the rack in the fan shown in FIG. 1. Figure 1

[0042] Figure 19 The structure diagram of the support body in the fan shown in FIG. 1. Figure 1

[0043] Figure 20 The structure diagram of the shell in the fan shown in FIG. 1. Figure 1

[0044] Figure 21 The structure diagram of the head-shaking motor in the fan shown in FIG. 1. Figure 1

[0045] ​​​​​​​​​​​​​Explanation of reference signs: 100, head assembly; 10, head body; 11, main motor; 12, fan blade; 13, casing; 131, mounting portion; 1311, first screw column; 132, decorative shell; 20, swing motor; 21, driving gear; 22, first output shaft; 23, second output shaft; 24, second screw hole; 30, transmission mechanism; 31, first gear; 311, first conical tooth portion; 312, first cylindrical tooth portion; 32, second gear; 321, second conical tooth portion; 322, second cylindrical tooth portion; 33, rack; 331, first screw hole; 40, clutch mechanism; 41, operating piece; 411, driving portion; 412, locking portion; 4121, second locking surface; 4122, third guide surface; 4123, recess; 413, unlocking portion; 4131, contact surface; 41311, accommodating groove; 4132, second guide surface; 414, pressing portion; 415, main body portion; 42, buckle; 421, first guide surface; 422, first locking surface; 43, first elastic member; 44, second elastic member; 45, third elastic member; 51, mounting seat; 511, stand column; 512, second screw column; 52, second rotating seat; 60, assembly support; 61, arc-shaped matching surface; 62, support body; 63, housing; 631, mounting groove; 632, gear groove; 633, assembly groove; 200, fan; 210, body assembly; 211, body rod; 212, chassis. DETAILED DESCRIPTION

[0046] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below. In the following description, a large number of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0048] In addition, if there is a term "and / or", "and / or" is only a description of the relationship between the associated objects, and indicates that there can be three kinds of relationships, for example, A and / or B, which can represent the relationship between A and B: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the associated objects before and after it. If there are terms "first", "second", these terms are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific situation.

[0050] In this application, unless otherwise expressly specified and limited, if the first feature is described as "on" or "under" the second feature and the like, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0051] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0052] Please refer to Figures 1 to 7The head assembly 100 provided by an embodiment of the present application comprises a head body 10, a head-tilting motor 20, a transmission mechanism 30 and a clutch mechanism 40. The transmission mechanism 30 is arranged between the head-tilting motor 20 and the head body 10. The transmission mechanism 30 has a transmission state and a non-transmission state. In the transmission state, the transmission mechanism 30 is in transmission connection with the head-tilting motor 20 and the head body 10. The head-tilting motor 20 can drive the head body 10 to rotate through the transmission mechanism 30. The clutch mechanism 40 is in transmission connection with the transmission mechanism 30 and is configured to drive the transmission mechanism 30 to switch between the transmission state and the non-transmission state.

[0053] The head assembly 100 is used in a fan 200, which can be but is not limited to a circulating fan. The fan 200 further comprises a body assembly 210, and the head assembly 100 is connected to the body assembly 210. Specifically, the body assembly 210 comprises a body rod 211 and a base plate 212. The head assembly 100 is connected to the top end of the body rod 211, and the base plate 212 is connected to the bottom end of the body rod 211. It can be understood that, to realize its normal functions, the head body 10 comprises a main motor 11, a fan blade 12, a casing 13 and the like. The main motor 11 and the fan blade 12 are installed in the casing 13. The main motor 11 is in transmission connection with the fan blade 12 and is configured to drive the fan blade 12 to rotate to form an air flow.

[0054] The head body 10 is arranged to be rotatable at least about a first axis. It can be understood that, when the transmission mechanism 30 is in the transmission state, the head-tilting motor 20 can drive the head body 10 to rotate about the first axis through the transmission mechanism 30. When the transmission mechanism 30 is in the non-transmission state, the head-tilting motor 20 cannot drive the head body 10 to rotate about the first axis through the transmission mechanism 30. The clutch mechanism 40 is configured to control the state switching of the transmission mechanism 30.

[0055] In the above head assembly 100, the head-tilting motor 20 can drive the head body 10 to rotate through the transmission mechanism 30 in the transmission state. Correspondingly, when the transmission mechanism 30 is in the non-transmission state, the head-tilting motor 20 can no longer drive the head body 10 to rotate. In this way, even if the head-tilting motor 20 is kept on, the head assembly 100 can control the transmission mechanism 30 to switch to the non-transmission state through the clutch mechanism 40, so that the head body 10 stops its tilting driven by the transmission mechanism 30. The head-tilting motor 20 kept on can still output a torque, which is used to drive the head body 10 to rotate in other directions, so as to realize bidirectional tilting through the single head-tilting motor 20 when the transmission mechanism 30 is in transmission, realize unidirectional tilting when the transmission mechanism 30 is not in transmission, or be used for other driving and the like.

[0056] In some embodiments, the transmission mechanism 30 comprises a first gear 31 and a second gear 32, the first gear 31 is configured to be movably arranged and has a transmission position and a non-transmission position; the clutch mechanism 40 is transmissionally connected to the first gear 31 and is configured to be capable of driving the first gear 31 to switch between the transmission position and the non-transmission position. When the first gear 31 is in the transmission position, the first gear 31 is engaged with the second gear 32, and the transmission mechanism 30 is in the transmission state. When the first gear 31 is in the non-transmission position, the first gear 31 is disengaged from the second gear 32, and the transmission mechanism 30 is in the non-transmission state.

[0057] In this way, the clutch mechanism 40 only needs to drive the first gear 31 to switch between the transmission position and the non-transmission position, so as to control the transmission mechanism 30 to switch between the transmission state and the non-transmission state, which is simple and reliable in implementation.

[0058] Please refer to Figure 8 and Figure 9 , further, the clutch mechanism 40 comprises an operating member 41 and a buckle 42, the operating member 41 has a driving part 411 and a locking part 412, the driving part 411 is matched with the first gear 31, and the operating member 41 drives the first gear 31 to move through the driving part 411. When the operating member 41 drives the first gear 31 to move to the transmission position and / or the non-transmission position, the locking part 412 is engaged with the buckle 42.

[0059] It can be understood that the buckle 42 is fixed relative to the second gear 32, and after the locking part 412 is engaged with the buckle 42, the operating member 41 is limited, and the first gear 31 is relatively fixed with the second gear 32, so that the first gear 31 can stably be in the transmission position and / or the non-transmission position. In addition, the limitation generated by the engagement of the buckle 42 can be overcome by an external force to be removed.

[0060] In this way, the user can drive the first gear 31 to move through the operating member 41, and the buckle 42 can make the first gear 31 remain in the transmission position and / or the non-transmission position after the user removes the external force.

[0061] In some embodiments, the operating member 41 is configured to be capable of moving to the engagement of the locking part 412 with the buckle 42 along an engagement direction (such as the X direction shown in Figure 4 The clutch mechanism 40 further comprises a first elastic member 43, the first elastic member 43 is matched with the operating member 41 and is configured to provide a driving force for driving the operating member 41 to move in a direction opposite to the engagement direction.

[0062] Specifically, when the operating member 41 drives the first gear 31 to move to the non-transmission position, the locking part 412 is engaged with the buckle 42, and one end of the locking part 412 can have a recess hole 4123 for assembling the first elastic member 43.

[0063] Thus, the operating member 41 can be driven by external force to move in the engaging direction to engage with the buckle 42 via the locking portion 412, and can be driven by the first elastic member 43 to move in the direction opposite to the engaging direction to return to the initial position after being engaged.

[0064] Further, the buckle 42 has a first guide surface 421 intersecting the engaging direction and used to generate the guide for engaging with the buckle 42.

[0065] It can be understood that the buckle 42 can be elastically deformed. Thus, the locking portion 412 can be pressed and engaged with the buckle 42 under the guide of the first guide surface 421.

[0066] Please refer to Figure 10 Further, the clutch mechanism 40 further comprises a second elastic member 44, and the operating member 41 further has an unlocking portion 413 arranged upstream of the locking portion 412 in the engaging direction, the unlocking portion 413 having a contact surface 4131 and a second guide surface 4132, the contact surface 4131 being arranged downstream of the second guide surface 4132 in the engaging direction. The unlocking portion 413 is configured to be movable relative to the locking portion 412 in the direction parallel to the engaging direction, and the second elastic member 44 is arranged between the locking portion 412 and the unlocking portion 413 and can be compressed to abut the contact surface 4131 against the locking portion 412. The second guide surface 4132 intersects the engaging direction and is used to generate the guide for disengaging from the buckle 42.

[0067] The contact surface 4131 of the unlocking portion 413 or the surface of the locking portion 412 facing the unlocking portion 413 can have a receiving groove 41311 for receiving the second elastic member 44 arranged between the unlocking portion 413 and the locking portion 412, so as to abut the unlocking portion 413 against the locking portion 412. For the convenience of understanding, the process of engaging the operating member 41 with the buckle 42 is briefly described as follows:

[0068] When the locking portion 412 of the operating member 41 is not engaged with the buckle 42, it is located upstream of the buckle 42 in the engaging direction, and the unlocking portion 413 is spaced from the locking portion 412 under the action of the second elastic member 44. When the operating member 41 is moved in the engaging direction under the action of an external force, the first elastic member 43 is compressed, and the locking portion 412 is pressed and engaged into the buckle 42 under the action of the first guide surface 421. At this time, the first gear 31 is in the non-transmission position, and the transmission mechanism 30 is in the non-transmission state. On this basis, the external force is continuously applied to the operating member 41 to drive it to continuously move in the engaging direction and continuously compress the first elastic member 43, until the unlocking portion 413 makes the second guide surface 4132 engage into the buckle 42 under the action of the first guide surface 421. At this time, the external force is removed, and the locking portion 412 is moved in the direction opposite to the engaging direction under the action of the first elastic member 43 to abut against the unlocking portion 413. The locking portion 412 and the unlocking portion 413 form an integral whole and are driven by the first elastic member 43 and guided by the second guide surface 4132 to rush open and disengage from the buckle 42, so that the operating member 41 returns to the initial position.

[0069] Thus, the user can switch the transmission mechanism 30 to the non-transmission state by driving the operating member 41 to move in the engaging direction, and can switch the transmission mechanism 30 back to the transmission state by continuously driving the operating member 41 to move in the engaging direction on this basis.

[0070] Specifically, the buckle 42 further has a first locking surface 422 located downstream of the first guide surface 421 in the engaging direction, and the locking portion 412 has a second locking surface 4121. The first locking surface 422 and the second locking surface 4121 are both perpendicular to the engaging direction. The locking portion 412 is engaged into the buckle 42, i.e., is moved to abut the first locking surface 422 and the second locking surface 4121, to realize the engagement of the locking portion 412 and the buckle 42.

[0071] It can be understood that the second guide surface 4132 can cover the second locking surface 4121, in other words, the second guide surface 4132 can sufficiently shield the second locking surface 4121 relative to the first locking surface 422 of the buckle 42 to guide the locking portion 412 and prevent the second locking surface 4121 from abutting against the first locking surface 422 to engage.

[0072] Thus, the first locking surface 422 and the second locking surface 4121 abut against each other, i.e., the engagement effect of the locking portion 412 and the buckle 42 is generated, to limit the operating member 41 in the direction opposite to the engaging direction.

[0073] In addition, the locking portion 412 can further have a third guide surface 4122 downstream of the second locking surface 4121 in the engaging direction, the third guide surface 4122 intersecting the engaging direction. The third guide surface 4122 also generates a guide for the locking portion 412 to be guided into the buckle 42, and the angle of the third guide surface 4122 can be consistent with the angle of the first guide surface 421, so that the two can cooperate and guide together.

[0074] In some embodiments, the operating member 41 is configured to be able to push the first gear 31 to move in the engaging direction, and the clutch mechanism 40 further comprises a third elastic member 45 cooperating with the first gear 31 and configured to provide a driving force for driving the operating member 41 to move in a direction opposite to the engaging direction.

[0075] It can be understood that the operating member 41 can push the first gear 31 to move under the action of an external force, and push it to reach the non-transmission position. The third elastic member 45 is used to generate a force in the opposite direction, for pushing the first gear 31 in the opposite direction when the external force is removed, and being able to reach the transmission position.

[0076] In this way, the operating member 41 only needs to be able to push the first gear 31 to move in a single direction, and the third elastic member 45 can drive the first gear 31 to return to the transmission position after the user removes the external force and the operating member 41 disengages from the buckle 42.

[0077] Please refer to Figures 11 to 15 In some embodiments, the head body 10 is configured to be rotatable about a first axis, and the transmission mechanism 30 further comprises a rack 33 provided on the head body 10 and about the first axis. The first gear 31 is in transmission connection with the head motor 20 and has a first conical tooth portion 311. The second gear 32 has a first conical tooth portion 311 and a second cylindrical tooth portion 322, the second cylindrical tooth portion 322 is in mesh with the rack 33, when the first gear 31 is in the transmission position, the second conical tooth portion 321 is in mesh with the first conical tooth portion 311, when the first gear 31 is in the non-transmission position, the second conical tooth portion 321 is separated from the first conical tooth portion 311.

[0078] The end of the first gear 31 and the second gear 32 has a gear shaft, in addition, the transmission mechanism 30 can further comprise a driving gear 21 sleeved on the output shaft of the head motor 20. The first gear 31 further has a first cylindrical tooth portion 312, and is in mesh with the driving gear 21 through the first cylindrical tooth portion 312.

[0079] Thus, when the first gear 31 is in the transmission position, the torque output by the pan motor 20 can be converted to the required direction by the first gear 31 and the second gear 32 in cooperation, and then the second cylindrical tooth portion 322 of the second gear 32 drives the head body 10 to rotate around the first axis by the rack 33. When the first gear 31 is in the non-transmission position, the first gear 31 and the second gear 32 are not in transmission with each other.

[0080] Please refer to Figure 16 In some embodiments, the head assembly 100 further comprises a mounting seat 51, the mounting seat 51 has a stand 511 extending in a direction parallel to the engagement direction, and has an axle hole in the stand 511, the gear shaft of the first gear 31 is rotatably arranged in the axle hole, and the third elastic member 45 is arranged in the axle hole and abuts against the gear shaft of the first gear 31.

[0081] Thus, the mounting seat 51 provides mounting positions for the first gear 31 and the third elastic member 45, and enables the first gear 31 to move in the direction parallel to the engagement direction. The first elastic member 43, the second elastic member 44 and the third elastic member 45 can be, but are not limited to, springs.

[0082] In some embodiments, the buckle 42 is arranged on the mounting seat 51, and the buckle 42 is an annular buckle, the first elastic member 43 is arranged in the buckle 42 and abuts against the operating member 41.

[0083] Thus, the mounting seat 51 provides stable mounting positions for the buckle 42 and the first elastic member 43, and also facilitates the engagement of the operating member 41 with the annular buckle. Correspondingly, the cross sections of the locking portion 412 and the unlocking portion 413 are generally annular or circular structures. The operating member 41 can further comprise a main body portion 415, the unlocking portion 413 can be sleeved on the main body portion 415, the top end of the main body portion 415 is a pressing portion 414, the bottom end abuts against the locking portion 412, and the driving portion 411 is connected to the main body portion 415.

[0084] Please refer to Figures 17 to 20 In some embodiments, the head assembly 100 further comprises an assembly support 60, a first rotating seat and a second rotating seat 52, the head body 10 is rotatably arranged around the first axis on the assembly support 60, the first rotating seat and the second rotating seat 52 are rotatably connected around the second axis, and the direction of the second axis intersects with the direction of the first axis. The assembly support 60 is arranged on the first rotating seat, and the second rotating seat 52 is used to fixedly connect the body assembly 210 of the fan 200. The pan motor 20 is drivingly connected to the head body 10 through the transmission mechanism 30, so as to drive the head body 10 to rotate around the first axis; and the pan motor 20 is drivingly connected to the second rotating seat 52, so as to drive the first rotating seat and the second rotating seat 52 to relatively rotate.

[0085] The first rotating seat can be the mounting seat 51. The second axis is perpendicular to the first axis, i.e., the head body 10 can rotate around two different directions. The first axis is the first direction, which is perpendicular to the height direction of the fan 200. The second axis is the second direction, which is perpendicular to the horizontal direction. It can be understood that the second direction is also perpendicular to the first direction. For the convenience of understanding, the first direction is taken as the horizontal direction, and the second direction is taken as the vertical direction.

[0086] The head body 10 rotates around the first axis to realize the up-down tilting. Meanwhile, the head body 10 is indirectly arranged on the first rotating seat through the assembly support 60. The first rotating seat can rotate around the second axis relative to the second rotating seat 52, and the second rotating seat 52 is fixed on the body rod 211 of the body assembly 210. Therefore, when the first rotating seat rotates around the second axis relative to the second rotating seat 52, the tilting motor 20 on the first rotating seat, the assembly support 60 and the head body 10 on the assembly support 60 rotate together to realize the left-right tilting of the head body 10.

[0087] In this way, the head assembly 100 can drive the head body 10 to tilt up-down and left-right through a single tilting motor 20. In addition, the user can switch the transmission state of the transmission mechanism 30 through the clutch mechanism 40 to make the head body 10 tilt in a single direction.

[0088] In some embodiments, the casing 13 of the head body 10 has a mounting portion 131, which is arc-shaped and has the first axis. The rack 33 is mounted on the mounting portion 131. The assembly support 60 has an arc-shaped matching surface 61, which has the first axis. The head body 10 is matched with the arc-shaped matching surface 61 through the mounting portion 131 and can slide along the arc-shaped matching surface 61 to rotate around the first axis.

[0089] Specifically, the casing 13 also has an air inlet and an air outlet. The mounting portion 131 is located on the side of the air inlet. The rack 33 is arranged on the side of the mounting portion 131 away from the air inlet. The engaging teeth of the rack 33 are located on the side of the rack 33 away from the mounting portion 131. The rack 33 has a first screw hole 331. The mounting portion 131 has a first screw column 1311 matched with the first screw hole 331. The two are connected through a screw. In addition, the casing 13 can also include a decorative shell 132, which covers the side of the rack 33 away from the mounting portion 131. Meanwhile, the decorative shell 132 has a through hole. The engaging teeth of the rack 33 are exposed in the through hole to be engaged with the transmission gear.

[0090] Since the axis of the arc-shaped matching surface 61 is the first axis, the head body 10 is capable of rotating around the first axis by sliding along the arc-shaped matching surface 61 through the mounting portion 131.

[0091] In this way, the head body 10 is capable of rotating stably relative to the assembly support 60 by sliding along the arc-shaped matching surface 61.

[0092] Specifically, the assembly support 60 comprises a support body 62, a shell 63 and a limiting cover (not shown in the figure), and the support body 62 forms the arc-shaped matching surface 61. The shell 63 is assembled on the first rotating seat and can be connected with the first rotating seat through screws. The top end of the shell 63 has a mounting groove 631, the support body 62 is arranged in the mounting groove 631, and the top end of the support body 62 can be matched with the mounting portion 131. In addition, the top end of the shell 63 can also form a gear groove 632, and the second gear 32 is installed in the gear groove 632. The limiting cover is arranged on the arc-shaped matching surface 61 of the support body 62, and the mounting portion 131 is at least partially located between the support body 62 and the limiting cover, so as to limit the mounting portion 131 between the two, preventing the head body 10 from being separated.

[0093] Further, the shell 63 also has an assembly groove 633 extending in a direction parallel to the clamping direction, and the operating member 41 is arranged in the assembly groove 633 and is configured to be capable of moving along the assembly groove 633. The operating member 41 also has a pressing portion 414, which is at least partially located outside the shell 63.

[0094] Specifically, the main body portion 415 is assembled in the assembly groove 633, and when the first gear 31 is in the transmission position, the operating member 41 is in the initial position, and the driving portion 411 abuts against the lower edge of the assembly groove 633 of the shell 63, so as to prevent the operating member 41 from continuing to move in the direction opposite to the clamping direction.

[0095] In this way, the user can drive the operating portion to move in the clamping direction through the pressing portion 414.

[0096] Please refer to Figure 21 In some embodiments, the output shaft of the head-shaking motor 20 comprises a first output shaft 22 and a second output shaft 23, the first output shaft 22 is in transmission connection with the head body 10, and the second output shaft 23 is in rotation-stopping matching with the second rotating seat 52 in the rotation around the second axis.

[0097] The head-shaking motor 20 is a double-shaft motor, and both output shafts are parallel to the second axis. The driving gear 21 is sleeved on the first output shaft 22 of the head-shaking motor 20. The first rotating seat has a mounting position for mounting the head-shaking motor 20, and the head-shaking motor 20 has a second screw hole 24. The first rotating seat has a second screw post 512 matched with the second screw hole 24. The head-shaking motor 20 is fixed on the first rotating seat by screwing the second screw hole 24 and the screw post. In addition, the first rotating seat also has a stand 511 for rotatingly mounting the second gear 32.

[0098] The second output shaft 23 is in stop rotation cooperation with the second rotating seat 52. Since the second rotating seat 52 is fixed on the body rod 211, when the second output shaft 23 outputs torque, a reaction force is generated to drive the head-shaking motor 20 to rotate the first rotating seat, and further drive the assembling support 60 and the head body 10 to rotate around the second axis.

[0099] In this way, the head-shaking motor 20 can drive the up-and-down shaking and the left-and-right shaking through the two output shafts respectively.

[0100] The application also provides a fan 200 comprising the head assembly 100. It can be understood that, in order to realize its normal function, the fan 200 further comprises a body assembly 210, and the head assembly 100 is connected to the body assembly 210.

[0101] The assembly process of the fan 200 is briefly described as follows:

[0102] In the assembly process, the main body part 415 is first assembled into the assembly groove 633 of the shell 63, and the pressing part 414 is exposed. Then, the unlocking part 413 is sleeved on the main body part 415 of the operating piece 41. Then, the second elastic piece 44 is assembled into the accommodating groove 41311 in the unlocking part 413. Then, the locking part 412 is assembled on one end of the main body part 415 by welding or screwing. Then, the first elastic piece 43 is assembled on the recessed hole 4123 of the locking part 412, so as to complete the main assembly of the clutch mechanism 40. Then, the clutch mechanism 40 is assembled to other components of the head assembly 100.

[0103] When the user only wants to start the left-and-right shaking, the pressing part 414 needs to press down the operating piece 41. The third guide surface 4122 of the locking part 412 is in contact with the first guide surface 421 of the buckle 42, and the buckle 42 is popped out until the second locking surface 4121 of the locking part 412 collides with the first locking surface 422 of the buckle 42. At this time, the operating piece 41 also drives the first gear 31 to move downward, so that the first gear 31 and the second gear 32 are separated, so that the second gear 32 does not work, and the up-and-down shaking is stopped, and only the left-and-right shaking is started.

[0104] When the user wants to start the up-down shaking, the operating member 41 is pressed again by the pressing part 414, at this time the buckle 42 is deformed outwardly by the unlocking part 413, then the first locking surface 422 of the buckle 42 contacts the second guiding surface 4132 of the unlocking part 413, then when the operating member 41 continues to be pressed downwardly, the second elastic member 44 is continuously compressed into the accommodating groove 41311 of the unlocking part 413 until the unlocking part 413 contacts the locking part 412, the pressing force is removed, at this moment, under the action of the first elastic member 43, the operating member 41 moves upwardly until the driving part 411 of the operating member 41 contacts the lower edge of the assembling groove 633 of the shell 63, then it is considered to return to the initial position, in this process, the first gear 31 moves upwardly and engages with the second gear 32, and the up-down shaking works again.

[0105] The technical features of the above-described embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0106] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, however, it should not be understood as the limitation of the patent application scope. It should be pointed out that for the ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A nose assembly for a fan, the nose assembly comprising: The head assembly comprises a head body (10), a head-tilting motor (20), a transmission mechanism (30) and a clutch mechanism (40), the transmission mechanism (30) is arranged between the head-tilting motor (20) and the head body (10), and the transmission mechanism (30) has a transmission state and a non-transmission state; in the transmission state, the transmission mechanism (30) is in transmission connection with the head-tilting motor (20) and the head body (10), and the head-tilting motor (20) can drive the head body (10) to rotate through the transmission mechanism (30); the clutch mechanism (40) is in transmission connection with the transmission mechanism (30) and is configured to drive the transmission mechanism (30) to switch between the transmission state and the non-transmission state.

2. The nose assembly of claim 1, wherein, The transmission mechanism (30) comprises a first gear (31) and a second gear (32), the first gear (31) is configured to be movably arranged and has a transmission position and a non-transmission position; the clutch mechanism (40) is in transmission connection with the first gear (31) and is configured to drive the first gear (31) to switch between the transmission position and the non-transmission position; The first gear (31) is in meshing with the second gear (32) in the transmission position, and the transmission mechanism (30) is in the transmission state; the first gear (31) is out of meshing with the second gear (32) in the non-transmission position, and the transmission mechanism (30) is in the non-transmission state.

3. The nose assembly of claim 2, wherein, The clutch mechanism (40) comprises an operating member (41) and a buckle (42), the operating member (41) has a driving part (411) and a locking part (412), the driving part (411) is matched with the first gear (31), and the operating member (41) drives the first gear (31) to move through the driving part (411); when the operating member (41) drives the first gear (31) to move to the transmission position and / or the non-transmission position, the locking part (412) is engaged with the buckle (42).

4. The nose assembly of claim 3, wherein, The operating member (41) is configured to be moved to the locking part (412) and the buckle (42) in engagement along an engagement direction; the clutch mechanism (40) further comprises a first elastic member (43), the first elastic member (43) is matched with the operating member (41) and is configured to provide a driving force for driving the operating member (41) to move in a direction opposite to the engagement direction; The buckle (42) has a first guide surface (421), the first guide surface (421) intersects with the engagement direction and is used to generate a guide for being buckled into the buckle (42). The clutch mechanism (40) further comprises a second elastic member (44), the operating member (41) further has an unlocking portion (413) arranged upstream of the locking portion (412) in the clamping direction, the unlocking portion (413) has a contact surface (4131) and a second guide surface (4132), the contact surface (4131) is located downstream of the second guide surface (4132) in the clamping direction; the unlocking portion (413) is configured to be movable relative to the locking portion (412) in a direction parallel to the clamping direction, the second elastic member (44) is arranged between the locking portion (412) and the unlocking portion (413) and can be compressed to abut the contact surface (4131) and the locking portion (412); the second guide surface (4132) intersects the clamping direction and is used to generate a guide away from the clasp (42).

5. The nose assembly of claim 4, wherein, The operating member (41) is configured to push the first gear (31) to move in the clamping direction, the clutch mechanism (40) further comprises a third elastic member (45), the third elastic member (45) cooperates with the first gear (31) and is configured to provide a driving force to drive the operating member (41) to move in a direction opposite to the clamping direction.

6. The handpiece assembly of claim 5, wherein, The head body (10) is configured to be rotatable about a first axis, the transmission mechanism (30) further comprises a rack (33), the rack (33) is arranged on the head body (10) and is arranged about the first axis; The first gear (31) is in transmission connection with the head-tilting motor (20) and has a first conical tooth portion (311); the second gear (32) has a second conical tooth portion (321) and a second cylindrical tooth portion (322), the second cylindrical tooth portion (322) is in mesh with the rack (33), when the first gear (31) is in the transmission position, the second conical tooth portion (321) is in mesh with the first conical tooth portion (311), when the first gear (31) is in the non-transmission position, the second conical tooth portion (321) is separated from the first conical tooth portion (311).

7. The handpiece assembly of claim 6, wherein, The head assembly further comprises a housing (63), the housing (63) has an assembly groove (633) extending in a direction parallel to the clamping direction, the operating member (41) is arranged in the assembly groove (633) and is configured to be movable along the assembly groove (633); the operating member (41) further has a pressing portion (414), the pressing portion (414) is at least partially located outside the housing (63); And / or, the head assembly further comprises a mounting seat (51), the mounting seat (51) has a stand column (511) extending in a direction parallel to the clamping direction and having an axle hole therein, a gear shaft of the first gear (31) is rotatably arranged in the axle hole, the third elastic member (45) is arranged in the axle hole and abuts against the gear shaft of the first gear (31); And / or, the head assembly further comprises a mounting seat (51), the buckle (42) is arranged on the mounting seat (51), and the buckle (42) is a ring-shaped buckle, the first elastic member (43) is arranged in the buckle (42) and abuts against the operating member (41).

8. The handpiece assembly of any of claims 1-7, wherein, The head assembly further comprises an assembly support (60), a first rotating seat and a second rotating seat (52), the head body (10) is rotatably arranged on the assembly support (60) around a first axis, the first rotating seat and the second rotating seat (52) are rotatably matched around a second axis, and a direction in which the second axis is located intersects with a direction in which the first axis is located. The assembly support (60) is arranged on the first rotating seat, and the second rotating seat (52) is used for fixedly connecting a fuselage assembly (210) of the fan. The head motor (20) is drivingly connected to the head body (10) through the transmission mechanism (30) to drive the head body (10) to rotate around the first axis, and the head motor (20) is drivingly connected to the second rotating seat (52) to drive the first rotating seat and the second rotating seat (52) to rotate relative to each other.

9. The handpiece assembly of claim 8, wherein, The head motor (20) has a first output shaft (22) and a second output shaft (23), the first output shaft (22) is drivingly connected to the head body (10), and the second output shaft (23) is rotationally matched with the second rotating seat (52) in a direction around the second axis.

10. A fan, characterized by The head assembly comprises the head assembly as claimed in any one of claims 1-9. The head assembly comprises the head assembly as claimed in any one of claims 1-9.

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