Fan swinging structure and desk fan

Abstract

The utility model discloses a fan swing structure and a desk fan, and relates to the technical field of household appliances, the fan swing structure comprises an annular mounting seat, one end of a rotating shaft shell extends to the outer wall of the annular mounting seat and forms a connecting sleeve; an output shaft of the vertical wind sweeping motor extends to the connecting sleeve; the supporting stand column is provided with a rotating bearing, an outer ring is connected with the supporting stand column, and an inner ring is sleeved with the connecting sleeve. According to the fan swing structure and the desk fan, the vertical air sweeping motor drives the rotating shaft shell to swing by utilizing the shell in an inverted mode, and the output shaft is fixed in the shaft fixing assembly of the supporting stand column. The connecting sleeve of the rotating shaft shell is connected with the supporting stand column through a rotating bearing, and swinging of the annular mounting base is achieved. The position of the motor structure is changed, and the desk fan can achieve more structural styles. According to the vertical wind sweeping motor, the large-size shell part is arranged in the annular mounting base, so that the space occupation of the motor assembly in the supporting stand column can be effectively reduced, and the overall weight is reduced.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a fan oscillation structure and a table fan. Background Technology

[0002] As people's living standards improve, traditional bladed electric fans can no longer meet their needs. The electric fan industry is constantly innovating and developing, and more and more new fan products are being developed. As a currently popular structure, the circulating fan can swing horizontally and vertically. The support column is located on the center line of the fan motor, and the horizontal and vertical swinging parts are set on the same center line to achieve omnidirectional air circulation and improve indoor air circulation efficiency.

[0003] Currently, existing vertical oscillation mechanisms are typically located in the middle of the fan blade holder, i.e., along the fan's center of gravity, to drive the fan blade holder to oscillate vertically. This results in a similar overall structural style and significant homogenization among existing fans. Furthermore, the support column needs to accommodate the motor and transmission structure, leading to a large diameter support column and making the overall fan structure bulky. Utility Model Content

[0004] This invention aims to at least solve the technical problem in the prior art where "the support column needs to accommodate the motor and transmission structure, resulting in a large diameter of the support column and a bulky overall fan structure." To address this, this invention proposes a fan oscillation structure and a desktop fan. The improved vertical oscillation structure can change the homogeneity problem of existing fan oscillation structures, reduce the volume of the support column, achieve overall weight reduction, and provide more structural styles for desktop fans.

[0005] The fan oscillation structure according to some embodiments of the present invention includes:

[0006] An annular mounting base is provided with a rotating shaft housing, one end of which is connected to the inner wall of the annular mounting base, and the other end extends to the outer wall of the annular mounting base to form a connecting sleeve.

[0007] A vertical sweeping motor, the housing of which is fixedly disposed inside the shaft housing and located on one side of the inner wall of the annular mounting base, and the output shaft of the vertical sweeping motor extends to the connecting sleeve;

[0008] A support column is provided at its end with a rotating bearing. The outer ring of the rotating bearing is connected to the support column, and the inner ring is sleeved with the connecting sleeve.

[0009] A shaft fixing assembly is fixedly installed inside the support column and located on one side of the rotating bearing; the output shaft of the vertical sweeping motor is plugged into the shaft fixing assembly.

[0010] When the vertical sweeping motor is working, the output shaft of the vertical sweeping motor is fixed inside the shaft fixing assembly, and the housing rotates relative to the shaft fixing assembly, causing the annular mounting base to rotate around the axis of the rotating bearing.

[0011] According to some embodiments of the present invention, a fan blade motor mounting base is provided in the middle of the shaft housing, and the fan blade motor mounting base is located at the center of the annular mounting base.

[0012] According to some embodiments of the present invention, a vertical motor mounting base is provided on the side of the rotating shaft housing near the connecting sleeve, and the housing of the vertical sweeping motor is fixedly installed in the vertical motor mounting base.

[0013] According to some embodiments of the present invention, the shaft fixing assembly includes a fixed seat and a linkage seat. The fixed seat is fixedly connected to the support column, one end of the linkage seat is inserted into the output shaft of the vertical sweeping motor, and the other end is fixedly connected to the fixed seat.

[0014] According to some embodiments of the present invention, the linkage seat is disposed inside the connecting sleeve, and a gap is left between the outer wall of the linkage seat and the inner wall of the connecting sleeve.

[0015] According to some embodiments of the present invention, the outer wall of the connecting sleeve is sleeved with the inner ring of the rotating bearing, and when the annular mounting seat swings, the connecting sleeve and the inner ring of the rotating bearing rotate synchronously.

[0016] According to some embodiments of the present invention, the end of the connecting sleeve is provided with a travel protrusion, the fixed seat is provided with a limiting groove, and the travel protrusion slides in the limiting groove; when the annular mounting seat swings, the travel protrusion slides in the limiting groove.

[0017] According to some embodiments of the present invention, the front and rear end faces of the fan blade motor mounting base are provided with through fan blade shaft holes, and the output shaft of the fan blade motor can extend to the outside from the fan blade shaft holes at both ends.

[0018] A desktop fan according to some embodiments of the present invention includes the above-described fan oscillation structure, and further includes:

[0019] The fan base has a horizontal swing disk and a horizontal drive motor inside. The end of the support column is fixedly connected to the middle of the horizontal swing disk, and a swing rack is provided around the periphery of the horizontal swing disk.

[0020] The output shaft of the horizontal drive motor meshes with the swing rack through transmission teeth to drive the horizontal swing disk and the support column to rotate horizontally.

[0021] According to some embodiments of the present invention, the support column is provided with a horizontal beam and a vertical beam. One end of the horizontal beam is fixedly connected to the middle of the horizontal swing disk, and the other end extends to the periphery of the fan base and is connected to the vertical beam. The other end of the vertical beam extends upward and is connected to the annular mounting base.

[0022] The fan oscillation structure and desktop fan according to some embodiments of this utility model have at least the following beneficial effects: The vertical sweeping motor adopts an inverted configuration, using the housing to drive the rotating shaft housing to oscillate, while the output shaft is fixed within the shaft fixing assembly of the supporting column. The connecting sleeve of the rotating shaft housing and the supporting column are connected by a rotating bearing, realizing the oscillation of the annular mounting base. By changing the position of the motor structure, the desktop fan can achieve more structural styles. By placing the relatively large housing portion of the vertical sweeping motor within the annular mounting base, the space occupied by the motor assembly within the supporting column can be effectively reduced, thus lowering the overall weight.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a three-dimensional schematic diagram of a desktop fan according to an embodiment of the present utility model;

[0026] Figure 2 This is a partial schematic diagram of a desktop fan according to an embodiment of the present utility model;

[0027] Figure 3 This is a partial schematic diagram of the fan oscillation structure according to an embodiment of the present invention;

[0028] Figure 4 This is a partial cross-sectional view of the fan oscillation structure according to an embodiment of the present invention;

[0029] Figure 5 This is a partial exploded view of the fan oscillation structure according to an embodiment of the present invention.

[0030] Figure label:

[0031] Annular mounting base 100, rotating shaft housing 110, fan blade motor mounting base 111, fan blade shaft hole 111a, vertical motor mounting base 112, connecting sleeve 113, stroke protrusion 114, vertical sweeping motor 210.

[0032] Support column 300, crossbeam 301, longitudinal beam 302, rotating bearing 310, fixed seat 320, limiting groove 321, linkage seat 330.

[0033] Fan base 400, horizontal oscillating disc 410, oscillating rack 411, horizontal drive motor 420, transmission gear 421. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, top, bottom, etc., are based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] The following is for reference. Figures 1-5 This invention describes a fan oscillation structure and a desktop fan according to embodiments of the present invention.

[0039] like Figures 1-5 As shown, the fan oscillation structure is mounted on a desktop fan and used as a vertical sweeping component of the fan. Specifically, the fan oscillation structure includes an annular mounting base 100, a vertical sweeping motor 210, a support column 300, and a shaft fixing assembly.

[0040] In this embodiment, the annular mounting base 100 has a circular ring structure; in other embodiments, a square ring or a polygonal ring may also be used. Specifically, a rotating shaft shell 110 is provided inside the annular mounting base 100. The rotating shaft shell 110 is composed of two halves of the shell, one half of which is integrally formed with the annular mounting base 100, and the other half is connected by screws. One end of the rotating shaft shell 110 is connected to the inner wall of the annular mounting base 100, and the other end extends to the outer wall of the annular mounting base 100 to form a connecting sleeve 113. The connecting sleeve 113 is integrally formed with the outer wall of the annular mounting base 100, and the middle of the connecting sleeve 113 is hollowed out and communicates with the inside of the rotating shaft shell 110.

[0041] The housing of the vertical sweeping motor 210 is fixedly disposed within the shaft housing 110 and located on one side of the inner wall of the annular mounting base 100. The output shaft of the vertical sweeping motor 210 extends to the connecting sleeve 113. The vertical sweeping motor 210 adopts a stepper motor structure. The motor housing and control components are installed within the shaft housing 110, while the motor output shaft extends from within the shaft housing 110 to the connecting sleeve 113.

[0042] A rotating bearing 310 is provided at the end of the support column 300. The outer ring of the rotating bearing 310 is connected to the support column 300, and the inner ring is sleeved with the connecting sleeve 113, so that the annular mounting seat 100 can be connected to the support column 300 through the rotating bearing 310. When the annular mounting seat 100 swings, the inner ring and outer ring of the rotating bearing 310 rotate relative to each other, while the outer ring of the rotating bearing 310 is firmly connected to the support column 300.

[0043] The shaft fixing assembly is fixedly installed inside the support column 300 and located on one side of the rotating bearing 310. The output shaft of the vertical sweeping motor 210 is inserted into the shaft fixing assembly. To enable the annular mounting base 100 to swing longitudinally via the vertical sweeping motor 210, the output shaft of the vertical sweeping motor 210 is inserted into the shaft fixing assembly, which is fixedly connected to the support column 300. When the output shaft of the vertical sweeping motor 210 rotates, the motor housing rotates relative to it because the output shaft is fixed by the shaft fixing assembly. The motor housing is connected to the rotating shaft housing 110, thereby causing the rotating shaft housing 110 and the annular mounting base 100 to swing.

[0044] When the vertical sweeping motor 210 operates, its output shaft is fixed within the shaft fixing assembly. The housing rotates relative to the shaft, causing the annular mounting base 100 to rotate around the axis of the rotating bearing 310. Existing longitudinal sweeping mechanisms typically employ a motor component mounted within a support column, with the fan blade assembly oscillating around the support column. This makes it difficult for most longitudinally sweeping fans to break free from their inherent structure. The fan oscillation structure of this embodiment utilizes an inverted vertical sweeping motor 210, effectively reducing the volume of the support column 300 and concealing the motor within the annular mounting base 100. This significantly reduces the overall weight of the desktop fan and provides more possibilities for structural design variations.

[0045] In some embodiments of this utility model, such as Figures 3-5 As shown, a fan motor mounting base 111 is provided in the middle of the shaft housing 110, and the fan motor mounting base 111 is located at the center of the annular mounting base 100. Specifically, the fan motor is installed inside the fan motor mounting base 111, and reinforcing ribs are provided extending from the periphery of the fan motor mounting base 111 toward the inner wall of the annular mounting base 100. The reinforcing ribs are perpendicular to the main shaft housing, thereby improving the structural strength of the annular mounting base 100.

[0046] Furthermore, the front and rear end faces of the fan blade motor mounting base 111 are provided with through fan blade shaft holes 111a, allowing the output shaft of the fan blade motor to extend to the outside from the fan blade shaft holes 111a at both ends. Specifically, the output shaft of the fan blade motor can adopt a single-shaft structure or a double-shaft structure. The output shaft extends to the outside from the fan blade shaft hole 111a and is detachably installed with the fan blade. A fan cover is used to snap-fit ​​the annular mounting base 100 from both ends, enabling the fan blade motor to drive the fan blade inside the fan head to rotate at high speed.

[0047] In some embodiments of this utility model, such as Figures 3-5 As shown, a vertical motor mounting base 112 is provided on the side of the rotating shaft housing 110 near the connecting sleeve 113, and the housing of the vertical sweeping motor 210 is fixedly installed in the vertical motor mounting base 112.

[0048] Specifically, the vertical motor mounting base 112 abuts against the inner wall of the annular mounting base 100, and the vertical motor mounting base 112 is connected to the connecting sleeve 113, so that the output shaft of the vertical sweeping motor 210 can extend into the connecting sleeve 113.

[0049] In some embodiments of this utility model, such as Figures 3-5 As shown, the shaft fixing assembly includes a fixing seat 320 and a linkage seat 330. The fixing seat 320 is fixedly connected to the support column 300. One end of the linkage seat 330 is inserted into the output shaft of the vertical sweeping motor 210, and the other end is fixedly connected to the fixing seat 320.

[0050] Specifically, the periphery of the fixed base 320 is fixed to the support column 300 by at least two sets of screws, and the fixed base 320 and the linkage base 330 are fixed together by at least two sets of screws. The other end of the linkage base 330 extends into the connecting sleeve 113 and is inserted into the output shaft inside the connecting sleeve 113. In this embodiment, the main function of the linkage base 330 is to be inserted into the output shaft to fix the position of the output shaft.

[0051] In other embodiments, the output shaft of the vertical sweeping motor 210 can also be designed to be longer, passing through the connecting sleeve 113 and directly plugged into the fixing seat 320.

[0052] Furthermore, the linkage seat 330 is disposed inside the connecting sleeve 113, and a gap is left between the outer wall of the linkage seat 330 and the inner wall of the connecting sleeve 113. A certain distance is left between the linkage seat 330 and the connecting sleeve 113 to facilitate the rotation of the connecting sleeve 113. The linkage seat 330 is fixedly connected to the fixed seat 320, and the connecting sleeve 113 rotates synchronously with the housing of the vertical sweeping motor 210.

[0053] In some embodiments of this utility model, such as Figures 3-5 As shown, the outer wall of the connecting sleeve 113 is fitted with the inner ring of the rotating bearing 310. When the annular mounting base 100 swings, the connecting sleeve 113 and the inner ring of the rotating bearing 310 rotate synchronously. Specifically, the connecting sleeve 113 is fitted with the inner ring of the rotating bearing 310, and the end of the connecting sleeve 113 is provided with a buckle that engages with the side wall of the inner ring of the rotating bearing 310 to prevent the connecting sleeve 113 from separating from the inner ring of the rotating bearing 310.

[0054] In some embodiments of this utility model, such as Figure 2 and Figure 5 As shown, the end of the connecting sleeve 113 is provided with a stroke protrusion 114, and the fixed seat 320 is provided with a limit groove 321. The stroke protrusion 114 slides in the limit groove 321. When the annular mounting seat 100 swings, the stroke protrusion 114 slides in the limit groove 321.

[0055] Specifically, the travel protrusion 114 protrudes from the end face of the connecting sleeve 113 and engages with the limiting groove 321. When the connecting sleeve 113 rotates, the travel protrusion 114 slides to the end of the limiting groove 321, and the vertical sweeping motor 210 rotates in the opposite direction, causing the connecting sleeve 113 to swing in the opposite direction. The above process is repeated to achieve longitudinal swing sweeping.

[0056] like Figures 1-2As shown, the desktop fan includes the aforementioned fan oscillation structure, and also includes a fan base 400, a horizontal oscillation disk 410, and a horizontal drive motor 420. Specifically, the horizontal oscillation disk 410 and the horizontal drive motor 420 are disposed inside the fan base 400. The end of the support column 300 is fixedly connected to the middle of the horizontal oscillation disk 410, and an oscillation rack 411 is disposed around the periphery of the horizontal oscillation disk 410. The output shaft of the horizontal drive motor 420 is driven by the meshing of the oscillation rack 411 with the transmission gear 421, thereby driving the horizontal oscillation disk 410 and the support column 300 to rotate horizontally.

[0057] Furthermore, the support column 300 is provided with a crossbeam 301 and a longitudinal beam 302. One end of the crossbeam 301 is fixedly connected to the middle of the horizontal swing disk 410, and the other end extends to the periphery of the fan base 400 and is connected to the longitudinal beam 302. The other end of the longitudinal beam 302 extends upward and is connected to the annular mounting base 100.

[0058] The support column 300 adopts an L-shaped structure, which ensures that the fan head and the fan base 400 are on the center line, while the horizontal rotation of the fan head is still centered on the middle of the horizontal swing disk 410.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fan oscillation structure, characterized in that, include: An annular mounting base (100) is provided with a rotating shaft housing (110), one end of which is connected to the inner wall of the annular mounting base (100), and the other end extends to the outer wall of the annular mounting base (100) to form a connecting sleeve (113); A vertical sweeping motor (210) has its housing fixedly disposed inside the rotating shaft housing (110) and located on one side of the inner wall of the annular mounting base (100). The output shaft of the vertical sweeping motor (210) extends to the connecting sleeve (113). A support column (300) is provided with a rotating bearing (310) at its end. The outer ring of the rotating bearing (310) is connected to the support column (300), and the inner ring is sleeved with the connecting sleeve (113). A shaft fixing assembly is fixedly installed inside the support column (300) and located on one side of the rotating bearing (310). The output shaft of the vertical sweeping motor (210) is inserted into the shaft fixing assembly. When the vertical sweeping motor (210) is working, the output shaft of the vertical sweeping motor (210) is fixed in the shaft fixing assembly, the housing rotates relative to each other and drives the annular mounting base (100) to rotate around the axis of the rotating bearing (310).

2. The fan oscillation structure according to claim 1, characterized in that, A fan blade motor mounting base (111) is provided in the middle of the shaft housing (110), and the fan blade motor mounting base (111) is located at the center of the annular mounting base (100).

3. The fan oscillation structure according to claim 1, characterized in that, A vertical motor mounting base (112) is provided on the side of the rotating shaft housing (110) near the connecting sleeve (113), and the housing of the vertical sweeping motor (210) is fixedly installed in the vertical motor mounting base (112).

4. The fan oscillation structure according to claim 1, characterized in that, The shaft fixing assembly includes a fixing seat (320) and a linkage seat (330). The fixing seat (320) is fixedly connected to the support column (300). One end of the linkage seat (330) is inserted into the output shaft of the vertical sweeping motor (210), and the other end is fixedly connected to the fixing seat (320).

5. The fan oscillation structure according to claim 4, characterized in that, The linkage seat (330) is disposed inside the connecting sleeve (113), and a gap is left between the outer wall of the linkage seat (330) and the inner wall of the connecting sleeve (113).

6. The fan oscillation structure according to claim 5, characterized in that, The outer wall of the connecting sleeve (113) is fitted with the inner ring of the rotating bearing (310). When the annular mounting seat (100) swings, the connecting sleeve (113) and the inner ring of the rotating bearing (310) rotate synchronously.

7. The fan oscillation structure according to claim 6, characterized in that, The end of the connecting sleeve (113) is provided with a travel protrusion (114), and the fixed seat (320) is provided with a limiting groove (321). The travel protrusion (114) slides in the limiting groove (321). When the annular mounting seat (100) swings, the travel protrusion (114) slides in the limiting groove (321).

8. The fan oscillation structure according to claim 2, characterized in that, The front and rear end faces of the fan blade motor mounting base (111) are provided with through fan blade shaft holes (111a), and the output shaft of the fan blade motor can extend to the outside from the fan blade shaft holes (111a) at both ends.

9. A desktop fan, characterized in that, Including the fan oscillation structure according to any one of claims 1 to 8, further comprising: A fan base (400) is provided with a horizontal swing disk (410) and a horizontal drive motor (420) inside. The end of the support column (300) is fixedly connected to the middle of the horizontal swing disk (410). A swing rack (411) is provided around the periphery of the horizontal swing disk (410). The output shaft of the horizontal drive motor (420) engages with the swing rack (411) via a transmission gear (421) to drive the horizontal swing disk (410) and the support column (300) to rotate horizontally.

10. The desktop fan according to claim 9, characterized in that, The support column (300) is provided with a crossbeam (301) and a longitudinal beam (302). One end of the crossbeam (301) is fixedly connected to the middle of the horizontal swing disk (410), and the other end extends to the periphery of the fan base (400) and is connected to the longitudinal beam (302). The other end of the longitudinal beam (302) extends upward and is connected to the annular mounting base (100).

Images