Machine head assembly and fan

Abstract

The invention relates to a machine head assembly and a fan. The machine head assembly comprises a machine head body, an assembling support, a first rotating base, a second rotating base and a head shaking motor. The machine head body is rotatably arranged on the assembly support around a first axis. The first rotating seat and the second rotating seat are in running fit around a second axis, and the second axis intersects with the direction of the first axis. The assembling support is arranged on the first rotating base, and the second rotating base is used for being fixedly connected with a fan body assembly of the fan. The head shaking motor is used for driving the machine head body to rotate around the first axis, and the first rotating seat and the second rotating seat relatively rotate around the second axis. According to the machine head assembly, the head shaking motor can drive the first rotating base to rotate relative to the second rotating base, and left-right head shaking of the machine head body is achieved. Meanwhile, the head shaking motor and the assembling support are jointly located on the first rotating base, the head shaking motor can be well used for driving the machine head body to rotate around the first axis, up-down head shaking is achieved, and the up-down and left-right head shaking function can be achieved through the single head shaking motor.

Description

Technical Field

[0001] The present application relates to the field of electrical technology, and in particular to a head assembly and a fan. Background Art

[0002] Circulation fans are increasingly used because of their advantages of more uniform air flow, energy saving and power saving. Circulation fans are usually composed of a body and a head. In order to increase the air supply range, some circulation fans have a shaking function. Specifically, the shaking includes up and down shaking and left and right shaking.

[0003] In the related art, the up and down shaking and left and right shaking functions of most circulation fans are basically controlled by two separate motors. There are many motors, the cost is high, and the assembly efficiency is low. With the current trend of lower product costs, this driving solution is undoubtedly costly and has low value. The large number of motors used at the same time will result in high power of the whole machine, reduced energy efficiency, and ineffective energy saving. In addition, the placement of the two motors in the dual-motor driving solution requires a large space, which will easily lead to a bloated appearance design. Summary of the invention

[0004] Based on this, it is necessary to provide a head assembly and a fan that can use a single motor to achieve left and right and up and down shaking in order to solve the above problems.

[0005] A head assembly for a fan, the head assembly comprising:

[0006] Machine head body;

[0007] An assembly support, on which the machine head body is rotatably arranged around a first axis;

[0008] A first rotating seat and a second rotating seat, wherein the first rotating seat and the second rotating seat are rotated and matched around a second axis, and the direction of the second axis intersects with the direction of the first axis; the assembly support is arranged on the first rotating seat, and the second rotating seat is used for fixedly connecting the body assembly of the fan; and

[0009] The shaking motor is arranged on the first rotating seat and is used to drive the head body to rotate around the first axis and the first rotating seat to rotate around the second axis relative to the second rotating seat.

[0010] In one embodiment, the head assembly includes a rack and a transmission gear, the rack is disposed on the head body and is arranged around the first axis, and the transmission gear is transmission-connected to the shaking motor and meshes with the rack.

[0011] In one embodiment, the transmission gear includes a first gear and a second gear, the first gear is configured with an axis parallel to the second axis, and the second gear is configured with an axis parallel to the first axis;

[0012] The first gear has a first conical tooth portion, the second gear has a second conical tooth portion and a second cylindrical tooth portion, the first conical tooth portion meshes with the second conical tooth portion, and the second cylindrical tooth portion meshes with the rack.

[0013] In one embodiment, the second gear has two sets of the second cylindrical teeth, and the two sets of the second cylindrical teeth are respectively located on both sides of the second conical teeth in the axial direction;

[0014] The rack has a first tooth portion and a second tooth portion, the first tooth portion and the second tooth portion are respectively meshed with two groups of the second columnar tooth portions, and the first tooth portion and the second tooth portion are spaced apart in the axial direction of the second gear to form a bar-shaped avoidance opening for avoiding the second conical tooth portion.

[0015] In one embodiment, the head body includes a housing, the housing has a mounting portion, the mounting portion is arc-shaped, and the axis is the first axis, and the rack is mounted on the mounting portion.

[0016] In one of the embodiments, the assembly support has an arc-shaped mating surface, the axis of the arc-shaped mating surface is the first axis, and the head body is matched with the arc-shaped mating surface through the mounting portion and can slide along the arc-shaped mating surface.

[0017] In one of the embodiments, the head assembly further includes a supporting roller, the axial direction of the supporting roller is parallel to the first axis, and the supporting roller is disposed at the arc-shaped mating surface to rollingly support the mounting portion.

[0018] In one embodiment, the shaking 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 engaged with the second rotating seat in a rotation direction around the second axis.

[0019] In one embodiment, the cross section of the end of the second output shaft is non-circular, and the second rotating seat has a matching shaft hole matching with the end of the second output shaft;

[0020] And / or, the first rotating seat has a rotating shaft structure, the rotating shaft structure extends along the direction of the second axis, and the second rotating seat has a rotating groove that cooperates with the rotating shaft structure; one of the rotating shaft structure and the rotating groove has a buckle, and the other has a slot, the slot is engaged with the buckle, and produces a limit in the direction of the second axis.

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

[0022] The above-mentioned head assembly and fan can rotate together around the second axis because the shaking head motor and the head body are directly or indirectly arranged on the first rotating seat. Therefore, the shaking head motor can realize the left and right shaking of the head body by driving the first rotating seat to rotate relative to the second rotating seat. On this basis, since the shaking head motor and the assembly support are jointly located on the first rotating seat, the shaking head motor can also be well used to drive the head body on the assembly support to rotate relative to the assembly support around the first axis to realize up and down shaking. In this way, the head assembly realizes the up and down and left and right shaking functions of the head body through a single shaking head motor, which helps to reduce the overall power of the fan and requires a relatively small installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 Schematic diagram of the structure of a fan with a head assembly in one embodiment of the present application.

[0025] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the fan is shown.

[0026] Figure 3 for Figure 2 The enlarged structural schematic diagram of the fan at point A is shown.

[0027] Figure 4 for Figure 1 A schematic diagram of a cross-sectional structure of the fan at another angle is shown.

[0028] Figure 5 for Figure 4 The enlarged structural schematic diagram of the fan at B is shown.

[0029] Figure 6 for Figure 1 Schematic diagram of the exploded structure of the fan shown.

[0030] Figure 7 for Figure 6 A schematic diagram of the exploded structure of the fan head body is shown.

[0031] Figure 8 for Figure 6Schematic diagram of the structure of the rack in the fan shown.

[0032] Fig. 9 for Figure 6 A schematic structural diagram of the first gear in the fan shown.

[0033] Fig.10 for Figure 6 A schematic diagram of the structure of the second gear in the fan shown.

[0034] Fig.11 for Figure 6 Schematic diagram of the structure of the driving gear in the fan shown.

[0035] Fig.12 for Figure 6 The schematic diagram of the structure of the support body in the fan is shown.

[0036] Fig.13 for Figure 6 Schematic diagram of the structure of the fan casing shown.

[0037] Fig.14 for Figure 6 The schematic diagram of the structure of the outer roller and the inner roller in the fan is shown.

[0038] Fig.15 for Figure 6 The schematic diagram of the structure of the oscillating motor in the fan is shown.

[0039] Fig.16 for Figure 6 The schematic diagram of the structure of the first rotating seat in the fan is shown.

[0040] Fig.17 for Figure 6 The schematic diagram of the structure of the cooperation between the second rotating seat and the fuselage assembly in the fan is shown.

[0041] Explanation of reference numerals: 100, head assembly; 10, head body; 11, main motor; 12, fan blade; 13, housing; 131, mounting portion; 1311, first screw column; 132, decorative shell; 20, assembly support; 21, arc-shaped mating surface; 22, support body; 221, first axial hole; 222, second axial hole; 23, housing; 231, mounting groove; 232, gear groove; 24, support roller; 241, outer roller; 242, inner roller; 31, first rotating seat; 311, second screw column; 312, column; 313, shaft structure; 3131, slot; 32, second rotating seat; 321, mating Axis hole; 322, rotating groove; 323, buckle; 324, annular groove; 40, shaking motor; 41, driving gear; 42, first output shaft; 43, second output shaft; 44, second screw hole; 51, rack; 511, first screw hole; 512, first tooth portion; 513, second tooth portion; 514, strip avoidance; 52, transmission gear; 521, first gear; 5211, first conical tooth portion; 5212, first cylindrical tooth portion; 522, second gear; 5221, second conical tooth portion; 5222, second cylindrical tooth portion; 200, fan; 210, fuselage assembly; 211, fuselage rod; 212, chassis. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore it should not be understood as a limitation on the present application.

[0044] In addition, if the term "and / or" appears, "and / or" is merely a way to describe the association relationship between associated objects, and indicates that three relationships may exist, for example, A and / or B can represent the association relationship between A and B: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that there is an "or" relationship between the associated objects before and after it. If the terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, 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 implementation method.

[0048] See also Figures 1 to 5The head assembly 100 provided in one embodiment of the present application includes a head body 10, an assembly support 20, a first rotating seat 31, a second rotating seat 32 and an oscillating motor 40. The head body 10 is rotatably arranged on the assembly support 20 around a first axis. The first rotating seat 31 and the second rotating seat 32 are rotatably matched around the second axis, and the direction of the second axis intersects with the direction of the first axis. The assembly support 20 is arranged on the first rotating seat 31, and the second rotating seat 32 is used to fix the fuselage assembly 210 connected to the fan 200. The oscillating motor 40 is arranged on the first rotating seat 31, and is used to drive the head body 10 to rotate around the first axis and the first rotating seat 31 to rotate around the second axis relative to the second rotating seat 32.

[0049] The head assembly 100 is used for the fan 200, and the fan 200 can be but not limited to a circulation fan. The fan 200 also includes a body assembly 210, and the head assembly 100 is connected to the body assembly 210. Specifically, the body assembly 210 includes a body rod 211 and a chassis 212, the head assembly 100 is connected to the top end of the body rod 211, and the chassis 212 is connected to the bottom end of the body rod 211. It can be understood that in order to achieve its normal function, the head body 10 includes a main motor 11, a fan blade 12, a casing 13, etc. Among them, the main motor 11 and the fan blade 12 are installed in the casing 13. The main motor 11 is connected to the fan blade 12 in a transmission manner, and is used to drive the fan blade 12 to rotate to form an air supply airflow.

[0050] The direction of the second axis intersects with the direction of the first axis, that is, the head body 10 can rotate in two different directions. Among them, the direction of the first axis is the first direction, and the first direction intersects with the height direction of the fan 200. The height direction of the fan 200 is the vertical direction when it is in normal use. The direction of the second axis is the second direction, and the second direction intersects with the horizontal direction. It can be understood that the second direction also intersects with the first direction. For ease of understanding, the following description is based on the first direction as the horizontal direction, and specifically the left and right direction of the fan 200, and the second direction as the vertical direction.

[0051] The head body 10 rotates around the first axis to achieve up and down shaking. At the same time, the head body 10 is indirectly arranged on the first rotating seat 31 through the assembly support 20, and the first rotating seat 31 can rotate around the second axis relative to the second rotating seat 32, and the second rotating seat 32 is fixed on the body rod 211 of the body assembly 210. Therefore, when the first rotating seat 31 rotates around the second axis relative to the second rotating seat 32, the shaking motor 40, the assembly support 20 and the head body 10 located on the assembly support 20 rotate accordingly to achieve left and right shaking of the head body 10.

[0052] The above-mentioned head assembly 100, since the shaking head motor 40 and the head body 10 are directly or indirectly arranged on the first rotating seat 31, can rotate together around the second axis. Therefore, the shaking head motor 40 can realize the left and right shaking of the head body 10 by driving the first rotating seat 31 to rotate relative to the second rotating seat 32. On this basis, since the shaking head motor 40 and the assembly support 20 are located together on the first rotating seat 31, the shaking head motor 40 can also be well used to drive the head body 10 on the assembly support 20 to rotate relative to the assembly support 20 around the first axis to realize up and down shaking. In this way, the head assembly 100 realizes the up and down and left and right shaking functions of the head body 10 through a single shaking head motor 40, which helps to reduce the overall power of the fan 200, and the required installation space is also relatively small.

[0053] Please also read Figures 6 to 8 In some embodiments, the head assembly 100 further includes a transmission mechanism, and the shaking motor 40 is connected to the head body 10 through the transmission mechanism to drive the head body 10 to rotate around the first axis through the transmission mechanism.

[0054] The transmission mechanism includes a transmission member, which is disposed on the machine head body 10 and extends around the first axis. The oscillating motor 40 is connected to the machine head body 10 through the transmission member.

[0055] The transmission member is fixedly connected to the head body 10, and can drive the head body 10 to rotate when driven by the oscillating motor 40. The transmission member can be in an arc shape around the first axis, and the arc can be but not limited to π, π / 2, etc., which is not specifically limited here.

[0056] In this way, the oscillating motor 40 can drive the head body 10 to rotate around the first axis by driving the transmission member extending around the first axis to rotate.

[0057] Furthermore, the transmission member is a rack 51 , and the transmission mechanism also includes a transmission gear 52 , which is connected to the oscillating motor 40 and meshes with the rack 51 .

[0058] The transmission gear 52 is driven to rotate by the oscillating motor 40 , and when rotating, it drives the rack 51 meshing with it to rotate around the first axis, thereby driving the head body 10 to oscillate up and down.

[0059] In this way, the oscillating motor 40 is connected to the machine head body 10 through the transmission gear 52 and the rack 51, and drives the machine head body 10 to oscillate up and down.

[0060] Furthermore, the housing 13 of the head body 10 has a mounting portion 131 . The mounting portion 131 is arc-shaped, and the axis thereof is the first axis. The rack 51 is mounted on the mounting portion 131 .

[0061] Specifically, the housing 13 also has an air inlet and an air outlet. The mounting portion 131 is located in the direction of the air inlet. The rack 51 is disposed on the side of the mounting portion 131 facing away from the air inlet. The meshing teeth of the rack 51 are located on the side facing away from the mounting portion 131.

[0062] The rack 51 has a first screw hole 511, and the mounting portion 131 has a first screw column 1311 that matches the first screw hole 511, and the two are connected by screws. In addition, the housing 13 may also include a decorative shell 132, which is disposed on the side of the rack 51 that is away from the mounting portion 131, and the decorative shell 132 has a through hole, and the meshing teeth of the rack 51 are exposed at the through hole so as to mesh with the transmission gear 52.

[0063] Please also read Fig. 9 and Fig.11 In some embodiments, the output shaft of the shaking motor 40 is arranged parallel to the second axis, and the transmission gear 52 includes a first gear 521 and a second gear 522. The first gear 521 is configured with an axis parallel to the second axis, and the second gear 522 is configured with an axis parallel to the first axis.

[0064] The ends of the first gear 521 and the second gear 522 have gear shafts. The first gear 521 has a first conical tooth portion 5211, and the second gear 522 has a second conical tooth portion 5221 and a second cylindrical tooth portion 5222. The second conical tooth portion 5221 meshes with the first conical tooth portion 5211, and the second cylindrical tooth portion 5222 meshes with the rack 51.

[0065] In addition, the transmission mechanism may further include a driving gear 41, which is sleeved on the output shaft of the oscillating motor 40. The first gear 521 also has a first cylindrical tooth portion 5212, and is meshed with the driving gear 41 through the first cylindrical tooth portion 5212.

[0066] In this way, the torque output by the shaking motor 40 can be converted into the required direction by the first gear 521 and the second gear 522 that cooperate with each other, and then the second cylindrical tooth portion 5222 of the second gear 522 drives the head body 10 to rotate around the first axis through the rack 51.

[0067] Furthermore, the second gear 522 has two groups of second cylindrical tooth portions 5222 , and the two groups of second cylindrical tooth portions 5222 are respectively located on both sides of the second conical tooth portion 5221 in the axial direction.

[0068] The rack 51 has a first tooth portion 512 and a second tooth portion 513 , which are respectively meshed with two groups of second cylindrical tooth portions 5222 , and the first tooth portion 512 and the second tooth portion 513 are spaced apart in the axial direction of the second gear 522 to form a strip-shaped avoidance opening 514 for avoiding the second conical tooth portion 5221 .

[0069] It can be understood that the first tooth portion 512 is meshed with the second cylindrical tooth portion 5222 on one side of the second gear 522 , and the second tooth portion 513 is meshed with the second cylindrical tooth portion 5222 on the other side of the second gear 522 .

[0070] This helps to improve the transmission stability between the rack 51 and the second gear 522 .

[0071] In some embodiments, the head assembly 100 may further include a clutch mechanism for controlling whether the transmission gear 52 transmits power between the shaking motor 40 and the rack 51 .

[0072] In other words, the transmission gear 52 has a transmission state and a non-transmission state, and in the transmission state, the oscillating motor 40 is in transmission connection with the rack 51, and in the non-transmission state, the oscillating motor 40 is not in transmission connection with the rack 51. The clutch mechanism can control the transmission gear 52 to switch between the transmission state and the non-transmission state.

[0073] In this way, when there is no need to shake the head up and down, the transmission gear 52 can be controlled to be in a non-transmission state through the clutch mechanism, so that the shaking motor 40 can no longer drive the head body 10 to rotate around the first axis through the transmission mechanism.

[0074] Please also read Fig.12 and Fig.13 In some embodiments, the assembly support 20 has an arc-shaped mating surface 21, the axis of the arc-shaped mating surface 21 is the first axis, the head body 10 is matched with the arc-shaped mating surface 21 through the mounting portion 131, and can slide along the arc-shaped mating surface 21 to rotate around the first axis.

[0075] Since the axis of the arc-shaped mating surface 21 is the first axis, the head body 10 can rotate around the first axis by sliding along the arc-shaped mating surface 21 through the mounting portion 131 .

[0076] In this way, the head body 10 can achieve stable rotation relative to the assembly support 20 by sliding along the arc-shaped matching surface 21 .

[0077] Specifically, the assembly support 20 includes a support body 22, a shell 23 and a limiting cover (not shown), and the support body 22 forms an arc-shaped mating surface 21. The shell 23 is assembled on the first rotating seat 31 and can be connected to the first rotating seat 31 by screws. The top of the shell 23 has a mounting groove 231, and the support body 22 is arranged in the mounting groove 231, and the top of the support body 22 can pass through the rack 51 through the strip-shaped avoidance opening 514 and cooperate with the mounting portion 131. In addition, the top of the shell 23 can also form a gear groove 232, and the second gear 522 is installed in the gear groove 232. The limiting cover is arranged on the arc-shaped mating surface 21 of the support body 22, and the mounting portion 131 is at least partially located between the support body 22 and the limiting cover, so as to limit the mounting portion 131 between the two to prevent the head body 10 from detaching.

[0078] Please also read Fig.14 Furthermore, the assembly support 20 also includes a support roller 24, the axial direction of the support roller 24 is parallel to the first axis, the support roller 24 is arranged on the support body 22 and is located at the arc-shaped mating surface 21, and the rolling support mounting portion 131.

[0079] In this way, the supporting roller 24 can support the mounting portion 131 and make it slide more smoothly along the arc-shaped mating surface 21, which helps the head body 10 to shake up and down.

[0080] Specifically, the support roller 24 includes an outer roller 241 and an inner roller 242 . The support body 22 has a first axial hole 221 and a second axial hole 222 . The outer roller 241 is installed on the support body 22 through the first axial hole 221 , and the inner roller 242 is installed on the support body 22 through the second axial hole 222 .

[0081] Please also read Fig.15 and Fig.16 In some embodiments, the output shaft of the shaking motor 40 includes a first output shaft 42 and a second output shaft 43. The first output shaft 42 is connected to the head body 10 in a transmission manner, and the second output shaft 43 is engaged with the second rotating seat 32 in a rotation direction around the second axis.

[0082] The oscillating motor 40 is a dual-axis motor, and both output shafts are parallel to the second axis. The driving gear 41 is sleeved on the first output shaft 42 of the oscillating motor 40. The first rotating seat 31 has a mounting position for mounting the oscillating motor 40, and the oscillating motor 40 has a second screw hole 44. The first rotating seat 31 has a second screw column 311 that matches the second screw hole 44. The oscillating motor 40 is fixed to the first rotating seat 31 by screws through the second screw hole 44 and the screw column. In addition, the first rotating seat 31 also has a column 312 for rotating and mounting the second gear 522.

[0083] The second output shaft 43 is engaged with the second rotating seat 32 to prevent rotation. Since the second rotating seat 32 is fixed on the fuselage rod 211, when the second output shaft 43 outputs torque, a reaction force will be generated to drive the shaking motor 40 to drive the first rotating seat 31 to rotate, and then drive the assembly support 20 and the head body 10 to rotate around the second axis.

[0084] In this way, the oscillating motor 40 can respectively drive the up and down oscillation and the left and right oscillation through the two output shafts.

[0085] Further, the end section of the second output shaft 43 is non-circular, and the second rotating seat 32 has a matching shaft hole 321 that matches the end of the second output shaft 43. It can be understood that the matching shaft hole 321 is non-circular that matches the end of the second output shaft 43.

[0086] Specifically, the cross section of the end of the first output shaft 42 is also non-circular, and the ends of the first output shaft 42 and the second output shaft 43 can be flat, and accordingly, the matching shaft hole 321 is also flat. Similarly, the driving gear 41 has a flat shaft hole, and the end of the first output shaft 42 is inserted into the shaft hole of the driving gear 41 to achieve a non-rotational fit between the two.

[0087] In this way, the end of the second output shaft 43 is inserted into the matching shaft hole 321 , so that the second output shaft 43 and the second rotating seat 32 can be locked in rotation.

[0088] Furthermore, the first rotating seat 31 has a rotating shaft structure 313, the rotating shaft structure 313 extends along the direction of the second axis, and the second rotating seat 32 has a rotating groove 322 that cooperates with the rotating shaft structure 313. One of the rotating shaft structure 313 and the rotating groove 322 has a buckle 323 (such as Figure 5 As shown in FIG. 1 ), the other has a slot 3131, which engages with the buckle 323 to generate a limit in the direction of the second axis.

[0089] Specifically, the rotating shaft structure 313 is hollow, the rotating groove 322 is arranged around the matching shaft hole 321 , and the second output shaft 43 passes through the rotating shaft structure 313 and matches with the matching shaft hole 321 .

[0090] In this way, the first rotating seat 31 can rotate with the second rotating seat 32 around the second axis through the rotating shaft structure 313, and the buckle 323 cooperates with the slot 3131 to reduce the probability of abnormal separation of the two.

[0091] Please also read Fig.17 Further, the surface of the second rotating seat 32 that cooperates with the first rotating seat 31 has an annular groove 324. The annular groove 324 is formed around the second axis and can constrain and guide the first rotating seat 31 to rotate.

[0092] The present application also provides a fan 200, comprising the above-mentioned head assembly 100. It can be understood that, in order to achieve its normal function, the fan 200 also includes a body assembly 210, and the head assembly 100 is connected to the body assembly 210.

[0093] The assembly process of the fan 200 is briefly described below:

[0094] During the assembly process, first assemble the outer roller 241 to the first axial hole 221 of the support body 22, then assemble the inner roller 242 to the second axial hole 222 of the support body 22, and then pass the support body 22 through the strip-shaped avoidance opening 514 of the rack 51, and then fix the rack 51 and the mounting part 131 by screwing the first screw hole 511 of the rack 51 and the first screw column 1311 of the mounting part 131, and finally install the decorative shell 132 to complete the assembly of the head body 10.

[0095] Assemble the second gear 522 into the gear slot 232 in the housing 23 through the gear shaft, then assemble the support body 22 into the mounting slot 231 of the housing 23, and fix the housing 23 by screwing. Then assemble the first gear 521 into the column 312 of the first rotating seat 31 through the gear shaft, thereby completing the assembly of the first gear 521 and the second gear 522. Then, fix the second screw hole 44 in the oscillating motor 40 to the second screw column 311 in the first rotating seat 31 by screwing. Then, assemble the driving gear 41 into the first output shaft 42 in the oscillating motor 40 through its shaft hole, and finally assemble the first rotating seat 31 to the housing 23 by screwing. Finally, the rotating groove 322 in the second rotating seat 32 is plugged into the rotating shaft structure 313 of the first rotating seat 31. A buckle 323 is provided in the rotating groove 322 to realize the snap connection with the rotating shaft structure 313. At the same time, the second output shaft 43 in the shaking motor 40 is inserted into the matching shaft hole 321 of the second rotating seat 32, thereby completing the assembly of the entire head assembly 100. The head assembly 100 can be further installed on the body assembly 210 through the second rotating seat 32.

[0096] When the user turns on the shaking function of the fan 200, the first output shaft 42 of the shaking motor 40 drives the driving gear 41 to rotate, and the driving gear 41 meshes with the first cylindrical tooth portion 5212 of the first gear 521, thereby driving the first gear 521 to operate, and the first conical tooth portion 5211 of the first gear 521 meshes with the second conical tooth portion 5221 of the second gear 522, thereby driving the second gear 522 to operate, and the second cylindrical tooth portion 5222 on the second gear 522 meshes with the rack 51, thereby driving the head body 10 to shake up and down. At the same time, the reaction force generated by the second output shaft 43 of the shaking motor 40 and the second rotating seat 32 can drive the head body 10 to rotate through the shaking motor 40, the first rotating seat 31, the housing 23 and the support body 22 to achieve left and right shaking.

[0097] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0098] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations 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 protection scope of the patent application shall be subject to the attached claims.

Claims

1. A head assembly for a fan, characterized in that: The head assembly comprises: Head body (10); An assembly support (20), the machine head body (10) being rotatably arranged on the assembly support (20) around a first axis; A first rotating seat (31) and a second rotating seat (32), wherein the first rotating seat (31) and the second rotating seat (32) are rotatably matched around a second axis, and the direction of the second axis intersects the direction of the first axis; the assembly support (20) is arranged on the first rotating seat (31), and the second rotating seat (32) is used for fixedly connecting the body assembly (210) of the fan; and The oscillating motor (40) is disposed on the first rotating seat (31) and is used to drive the machine head body (10) to rotate around the first axis and the first rotating seat (31) to rotate around the second axis relative to the second rotating seat (32).

2. The head assembly according to claim 1, characterized in that: The machine head assembly comprises a rack (51) and a transmission gear (52); the rack (51) is provided on the machine head body (10) and is arranged around the first axis; the transmission gear (52) is transmission-connected to the oscillating motor (40) and meshes with the rack (51).

3. The head assembly according to claim 2, characterized in that: The transmission gear (52) comprises a first gear (521) and a second gear (522); the first gear (521) is configured such that an axis is parallel to the second axis; and the second gear (522) is configured such that an axis is parallel to the first axis. The first gear (521) has a first conical tooth portion (5211), the second gear (522) has a second conical tooth portion (5221) and a second cylindrical tooth portion (5222), the second conical tooth portion (5221) meshes with the first conical tooth portion (5211), and the second cylindrical tooth portion (5222) meshes with the rack (51).

4. The head assembly according to claim 3, characterized in that: The second gear (522) has two groups of the second cylindrical tooth portions (5222), and the two groups of the second cylindrical tooth portions (5222) are respectively located on two sides of the second conical tooth portion (5221) in the axial direction; The rack (51) comprises a first tooth portion (512) and a second tooth portion (513), the first tooth portion (512) and the second tooth portion (513) respectively meshing with two groups of the second cylindrical tooth portions (5222), and the first tooth portion (512) and the second tooth portion (513) are spaced apart in the axial direction of the second gear (522) to form a strip-shaped avoidance opening (514) for avoiding the second conical tooth portion (5221).

5. The head assembly according to claim 2, characterized in that: The head body (10) comprises a housing (13), the housing (13) having a mounting portion (131), the mounting portion (131) being arc-shaped, and the axis thereof being the first axis, and the rack (51) being mounted on the mounting portion (131).

6. The head assembly according to claim 5, characterized in that: The assembly support (20) has an arc-shaped mating surface (21), the axis of the arc-shaped mating surface (21) is the first axis, and the head body (10) is mated with the arc-shaped mating surface (21) through the mounting portion (131) and is capable of sliding along the arc-shaped mating surface (21).

7. The head assembly according to claim 6, characterized in that: The head assembly further comprises a supporting roller (24), the axial direction of the supporting roller (24) being parallel to the first axis and being arranged at the arc-shaped matching surface (21) to rollingly support the mounting portion (131).

8. The head assembly according to any one of claims 1 to 7, characterized in that: The shaking head motor (40) comprises a first output shaft (42) and a second output shaft (43); the first output shaft (42) is drivingly connected to the machine head body (10); and the second output shaft (43) is engaged with the second rotating seat (32) in a rotation direction around the second axis to prevent rotation.

9. The head assembly according to claim 8, characterized in that: The cross section of the end of the second output shaft (43) is non-circular, and the second rotating seat (32) has a matching shaft hole (321) that matches the end of the second output shaft (43); And / or, the first rotating seat (31) has a rotating shaft structure (313), the rotating shaft structure (313) extends along the direction of the second axis, and the second rotating seat (32) has a rotating groove (322) that cooperates with the rotating shaft structure (313); one of the rotating shaft structure (313) and the rotating groove (322) has a buckle (323), and the other has a slot (3131), the slot (3131) is engaged with the buckle (323), and generates a limit in the direction of the second axis.

10. A fan, characterized in that: Comprising a head assembly as described in any one of claims 1-9.

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