Oscillating fan

Abstract

This utility model discloses an oscillating fan, including a frame, a rotating base, a dual-axis motor, a first bearing, and a second bearing. The rotating base is rotatably connected to the frame and has a mounting cavity with a first through hole and a second through hole, which are coaxially arranged. The dual-axis motor is installed in the mounting cavity and has a first output shaft and a second output shaft. The first output shaft passes through the first through hole, and the second output shaft passes through the second through hole. The first bearing is installed in the first through hole and is sleeved on the outer circumference of the first output shaft. The second bearing is installed in the second through hole and is sleeved on the outer circumference of the second output shaft. In this way, by setting the first bearing and the second bearing, the first output shaft and the second output shaft can be supported respectively, thereby reducing the load on the dual-axis motor and improving the service life of the dual-axis motor.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to an oscillating fan. Background Technology

[0002] Existing oscillating fans include a frame, a rotating base, a dual-axis motor, and fan blades. The rotating base is rotatably connected to the frame, and the dual-axis motor is located on the rotating base. The dual-axis motor has a first output shaft and a second output shaft. The first output shaft is connected to the fan blades, and the second output shaft meshes with a gear set to enable the rotating base to oscillate. Because the first output bearing bears the load of the fan blades, and the second output bearing bears the load of the first bevel gear, the dual-axis motor experiences a relatively large load, affecting its service life. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an oscillating fan that can improve the service life of a dual-axis motor.

[0004] An oscillating fan according to an embodiment of the present invention includes:

[0005] frame;

[0006] A rotating seat is rotatably connected to the frame. The rotating seat is provided with a mounting cavity, which has a first through hole and a second through hole. The first through hole and the second through hole are coaxially arranged.

[0007] A dual-axis motor is installed in the mounting cavity. The dual-axis motor has a first output shaft and a second output shaft. The first output shaft passes through the first through hole, and the second output shaft passes through the second through hole.

[0008] The first bearing is installed in the first through hole and is sleeved on the outer periphery of the first output shaft;

[0009] The second bearing is installed in the second through hole and is sleeved on the outer periphery of the second output shaft.

[0010] The oscillating fan according to the embodiments of the present invention has at least the following beneficial effects:

[0011] When the oscillating fan is working, the dual-axis motor drives the first and second output shafts to rotate. Since a first bearing is provided between the rotating base and the first output shaft, the first bearing can support the first output shaft. The load borne by the first output shaft is transmitted to the rotating base through the first bearing. Since a second bearing is provided between the rotating base and the second output shaft, the second bearing can support the second output shaft. The load borne by the second output shaft is transmitted to the rotating base through the second bearing, thereby reducing the load borne by the dual-axis motor and thus improving the service life of the dual-axis motor.

[0012] According to some embodiments of the present invention, the rotating seat includes a first bracket, a second bracket connected to the first bracket, and a rotating shaft connected to the first bracket. The first bracket is provided with a first groove, and the second bracket is provided with a second groove. The first groove and the second groove form the mounting cavity. The first through hole is provided in the first bracket, and the second through hole is provided in the second bracket. The end of the rotating shaft away from the first bracket is rotatably connected to the frame.

[0013] According to some embodiments of the present invention, the first bracket and the rotating shaft are an integral structure.

[0014] According to some embodiments of the present invention, the first bracket and the second bracket are detachably connected.

[0015] According to some embodiments of the present invention, the first bracket is detachably connected to the second bracket by fasteners.

[0016] According to some embodiments of the present invention, the sidewall of the first groove is provided with a plurality of heat dissipation holes, the heat dissipation holes penetrate the first bracket, and the plurality of heat dissipation holes are arranged at intervals along the circumference of the first through hole.

[0017] According to some embodiments of the present invention, a positioning structure is provided between the first bracket and the second bracket.

[0018] According to some embodiments of the present invention, the positioning structure includes a positioning protrusion and a positioning groove. One of the positioning protrusion and the positioning groove is disposed in the first bracket, and the other is disposed in the second bracket. The positioning protrusion is accommodated in the positioning groove and abuts against the side wall of the positioning groove.

[0019] According to some embodiments of the present invention, a protective shell is also included, wherein the first bracket and the second bracket are both installed inside the protective shell, and the end of the rotating shaft away from the first bracket extends to the outside of the protective shell.

[0020] According to some embodiments of the present invention, it further includes a fan blade, a first bevel gear, and a second bevel gear. The fan blade is connected to the first output shaft and located outside the protective housing. The first bevel gear is connected to the second output shaft. The second bevel gear is installed inside the protective housing, and the first bevel gear meshes with the second bevel gear.

[0021] 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

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the structure of the oscillating fan according to an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of an oscillating fan according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the oscillating fan according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the assembly of the rotating base and the dual-axis motor according to an embodiment of the present invention;

[0027] Figure 5 for Figure 4 A schematic diagram of the decomposition process;

[0028] Figure 6 This is a schematic diagram of the internal structure of the rotating base and the dual-axis motor in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the second bracket according to an embodiment of the present utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the first support in an embodiment of the present utility model.

[0031] Figure label:

[0032] Frame 100, rotating seat 200, mounting cavity 201, first through hole 202, second through hole 203, first bracket 210, first groove 211, heat dissipation hole 212, positioning protrusion 213, second bracket 220, second groove 221, positioning groove 222, rotating shaft 230, dual-axis motor 300, first output shaft 310, second output shaft 320, first bearing 400, second bearing 500, protective shell 600, fan blade 700. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these 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.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship 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.

[0035] 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.

[0036] 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.

[0037] In related technologies, an oscillating fan includes a frame, a rotating base, a dual-axis motor, and fan blades. The rotating base is rotatably connected to the frame, and the dual-axis motor is mounted on the rotating base. The dual-axis motor has a first output shaft and a second output shaft. The first output shaft is connected to the fan blades, and the second output shaft engages with a gear set to enable the rotating base to oscillate. Because the first output bearing is subjected to the load of the fan blades, and the second output bearing is subjected to the load of the first bevel gear, the dual-axis motor bears a large load, affecting its service life.

[0038] Reference Figures 1 to 6According to an embodiment of the present invention, an oscillating fan includes a frame 100, a rotating base 200, a dual-axis motor 300, a first bearing 400, and a second bearing 500. The rotating base 200 is rotatably connected to the frame 100. The rotating base 200 is provided with a mounting cavity 201, which has a first through hole 202 and a second through hole 203. The first through hole 202 and the second through hole 203 are coaxially arranged. The dual-axis motor 300 is installed in the mounting cavity 201 and has a first output shaft 310 and a second output shaft 320. The first output shaft 310 passes through the first through hole 400 and the second through hole 500. A through hole 202 is provided, through which the second output shaft 320 passes. A first bearing 400 is installed in the first through hole 202 and is sleeved on the outer periphery of the first output shaft 310. A second bearing 500 is installed in the second through hole 203 and is sleeved on the outer periphery of the second output shaft 320. In this way, by setting the first bearing 400 and the second bearing 500, the first output shaft 310 and the second output shaft 320 can be supported respectively, thereby reducing the load on the dual-axis motor 300 and improving the service life of the dual-axis motor 300.

[0039] For example, when the oscillating fan is working, the dual-axis motor 300 drives the first output shaft 310 and the second output shaft 320 to rotate. Since a first bearing 400 is provided between the rotating base 200 and the first output shaft 310, the first bearing 400 can support the first output shaft 310. The load borne by the first output shaft 310 is transmitted to the rotating base 200 through the first bearing 400. Since a second bearing 500 is provided between the rotating base 200 and the second output shaft 320, the second bearing 500 can support the second output shaft 320. The load borne by the second output shaft 320 is transmitted to the rotating base 200 through the second bearing 500, thereby reducing the load borne by the dual-axis motor 300 and thus improving the service life of the dual-axis motor 300.

[0040] It should be noted that the outer ring of the first bearing 400 abuts against the side wall of the first through hole 202, and the inner ring of the first bearing 400 abuts against the outer peripheral wall of the first output shaft 310. Similarly, the outer ring of the second bearing 500 abuts against the side wall of the second through hole 203, and the inner ring of the second bearing 500 abuts against the outer peripheral wall of the second output shaft 320. No restrictions are imposed here.

[0041] It is understandable that, since the first through hole 202 and the second through hole 203 are coaxially arranged, the coaxiality of the first output shaft 310 and the second output shaft 320 can be improved, thereby increasing the service life of the dual-axis motor 300. No limitation is made here.

[0042] Reference Figure 4 , Figure 5In some embodiments of this utility model, the rotating base 200 includes a first bracket 210, a second bracket 220 connected to the first bracket 210, and a rotating shaft 230 connected to the first bracket 210. The first bracket 210 is provided with a first groove 211, and the second bracket 220 is provided with a second groove 221. The first groove 211 and the second groove 221 form an installation cavity 201. A first through hole 202 is provided in the first bracket 210, and a second through hole 203 is provided in the second bracket 220. The rotating shaft 230 is rotatably connected to the frame 100, which facilitates the assembly of the dual-axis motor 300 and the rotating shaft.

[0043] For example, the first bracket 210 and the second bracket 220 are arranged opposite each other along the axial direction of the first output shaft 310. When assembling the dual-axis motor 300, the first output shaft 310 is passed through the first through hole 202 from the first groove 211, and the second output shaft 320 is passed through the second through hole 203 from the second groove 221. Then, the first bracket 210 and the second bracket 220 are closed, and the dual-axis motor 300 can be installed in the mounting cavity 201. The end of the rotating shaft 230 away from the first bracket 210 is rotatably connected to the frame 100, which facilitates the assembly of the dual-axis motor 300 and the rotating shaft.

[0044] Reference Figure 8 In some embodiments of this utility model, the first bracket 210 and the rotating shaft 230 are an integral structure, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the fan.

[0045] For example, the first bracket 210 and the rotating shaft 230 are integrally formed by die casting, which can reduce the number of molds, thereby reducing the production cost of the molds and thus reducing the production cost of the fan.

[0046] As another implementation, the first bracket 210 and the rotating shaft 230 can also be connected by welding, wherein the welding method includes, but is not limited to, resistance welding, laser welding or ultrasonic welding.

[0047] In some embodiments of this utility model, the first bracket 210 and the second bracket 220 are detachably connected, which facilitates the assembly of the rotating seat 200.

[0048] In some embodiments of this utility model, the first bracket 210 is detachably connected to the second bracket 220 by fasteners, which are bolts or screws. The fasteners pass through the second bracket 220 and are threadedly connected to the first bracket 210, so that the first bracket 210 and the second bracket 220 are stably connected, which can improve the connection reliability of the first bracket 210 and the second bracket 220.

[0049] It should be noted that the first bracket 210 and the second bracket 220 can also be detachably connected by a snap-fit ​​structure. For example, the snap-fit ​​structure includes a buckle provided on the first bracket 210 and a slot provided on the second bracket 220. The buckle snaps into the side wall of the slot, which can also connect and fix the first bracket 210 and the second bracket 220. No limitation is made here.

[0050] Reference Figure 8 In some embodiments of this utility model, the sidewall of the first groove 211 is provided with a plurality of heat dissipation holes 212, the heat dissipation holes 212 penetrate the first bracket 210, and the plurality of heat dissipation holes 212 are arranged at intervals along the circumference of the first through hole 202, which is beneficial to heat dissipation of the dual-axis motor 300, thereby improving the service life of the dual-axis motor 300.

[0051] Reference Figure 7 , Figure 8 In some embodiments of this utility model, a positioning structure is provided between the first bracket 210 and the second bracket 220, which can circumferentially position the first bracket 210 and the second bracket 220 to facilitate the assembly of the first bracket 210 and the second bracket 220, thereby improving the assembly efficiency of the rotating seat 200.

[0052] Reference Figure 7 , Figure 8 In some embodiments of this utility model, the positioning structure includes a positioning protrusion 213 provided on the first bracket 210 and a positioning groove 222 provided on the second bracket 220. The positioning protrusion 213 is accommodated in the positioning groove 222 and abuts against the side wall of the positioning groove 222, which can perform circumferential positioning of the first bracket 210 and the second bracket 220, so as to facilitate the assembly of the first bracket 210 and the second bracket 220, thereby improving the assembly efficiency of the rotating seat 200.

[0053] For example, there are two positioning protrusions 213, which are spaced apart circumferentially along the first through hole 202. There are also two corresponding positioning grooves 222. The positioning protrusions 213 are housed in the corresponding positioning grooves 222 and abut against the side wall of the corresponding positioning grooves 222. This allows for circumferential positioning of the first bracket 210 and the second bracket 220, facilitating the assembly of the first bracket 210 and the second bracket 220 and thus improving the assembly efficiency of the rotating seat 200.

[0054] It should be noted that the positions of the positioning protrusion 213 and the positioning groove 222 can be interchanged, that is, the positioning protrusion 213 is located on the second bracket 220 and the positioning groove 222 is located on the first bracket 210, without any restrictions.

[0055] As another implementation, the positioning structure can also be a structure in which a positioning pin and a positioning hole cooperate, and there is no limitation here.

[0056] In some embodiments of this utility model, a protective shell 600 is also included. The first bracket 210 and the second bracket 220 are both installed inside the protective shell 600, and the end of the rotating shaft 230 away from the first bracket 210 extends to the outside of the protective shell 600, which can hide the first bracket 210, the second bracket 220 and the drive motor, thereby improving the safety of using the oscillating fan.

[0057] Reference Figure 1 , Figure 2 In some embodiments of this utility model, it also includes a fan blade 700, a first bevel gear, and a second bevel gear. The rotating seat 200 is installed inside the protective shell 600. The fan blade 700 is connected to the first output shaft 310 and located outside the protective shell 600. The first bevel gear is connected to the second output shaft 320. The second bevel gear is installed inside the protective shell 600, and the first bevel gear meshes with the second bevel gear. In this way, the dual-axis motor 300 can drive the fan blade 700 to rotate and also drive the rotating seat 200 to rotate, which can increase the blowing range of the oscillating fan.

[0058] For example, the rotation axis of the first bevel gear is set perpendicular to the rotation axis of the second bevel gear, and the first bevel gear meshes with the second bevel gear. In this way, the dual-axis motor 300 can drive the fan blade 700 to rotate and also drive the rotating base 200 to rotate, which can increase the air blowing range of the oscillating fan.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A head-tilting fan characterized by comprising: include: Rack (100); A rotating seat (200) is rotatably connected to the frame (100). The rotating seat (200) is provided with a mounting cavity (201). The mounting cavity (201) has a first through hole (202) and a second through hole (203). The first through hole (202) and the second through hole (203) are coaxially arranged. A dual-axis motor (300) is installed in the mounting cavity (201). The dual-axis motor (300) has a first output shaft (310) and a second output shaft (320). The first output shaft (310) passes through the first through hole (202), and the second output shaft (320) passes through the second through hole (203). The first bearing (400) is installed in the first through hole (202) and the first bearing (400) is sleeved on the outer periphery of the first output shaft (310); The second bearing (500) is installed in the second through hole (203) and is sleeved on the outer periphery of the second output shaft (320).

2. The oscillating fan according to claim 1, characterized in that, The rotating base (200) includes a first bracket (210), a second bracket (220) connected to the first bracket (210), and a rotating shaft (230) connected to the first bracket (210). The first bracket (210) is provided with a first groove (211), and the second bracket (220) is provided with a second groove (221). The first groove (211) and the second groove (221) form the mounting cavity (201). The first through hole (202) is provided in the first bracket (210), and the second through hole (203) is provided in the second bracket (220). The end of the rotating shaft (230) away from the first bracket (210) is rotatably connected to the frame (100).

3. The oscillating fan according to claim 2, characterized in that, The first bracket (210) and the rotating shaft (230) are an integral structure.

4. The oscillating fan according to claim 2, characterized in that, The first bracket (210) and the second bracket (220) are detachably connected.

5. The oscillating fan according to claim 4, characterized in that, The first bracket (210) is detachably connected to the second bracket (220) by fasteners.

6. The oscillating fan according to claim 2, characterized in that, The sidewall of the first groove (211) is provided with a plurality of heat dissipation holes (212), the heat dissipation holes (212) penetrate the first bracket (210), and the plurality of heat dissipation holes (212) are arranged at intervals along the circumference of the first through hole (202).

7. The oscillating fan according to claim 2, characterized in that, A positioning structure is provided between the first bracket (210) and the second bracket (220).

8. The oscillating fan according to claim 7, characterized in that, The positioning structure includes a positioning protrusion (213) and a positioning groove (222). One of the positioning protrusion (213) and the positioning groove (222) is disposed in the first bracket (210) and the other is disposed in the second bracket (220). The positioning protrusion (213) is accommodated in the positioning groove (222) and abuts against the side wall of the positioning groove (222).

9. The oscillating fan according to claim 2, characterized in that, It also includes a protective shell (600), in which the first bracket (210) and the second bracket (220) are both installed, and the end of the rotating shaft (230) away from the first bracket (210) extends to the outside of the protective shell (600).

10. The oscillating fan according to claim 9, characterized in that, It also includes a fan blade (700), a first bevel gear and a second bevel gear. The fan blade (700) is connected to the first output shaft (310) and located outside the protective housing (600). The first bevel gear is connected to the second output shaft (320). The second bevel gear is installed inside the protective housing (600), and the first bevel gear meshes with the second bevel gear.

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