Oscillating mechanism and fan

Abstract

The oscillating mechanism comprises a base, a first motor and a second motor, a bottom plate is arranged at the rear end of the base, a first rotating shaft of the first motor is connected with at least three first rolling bearings, an included angle is formed between the rotating axis of the second motor and the rotating axis of the first motor, and the second motor is provided with a second rotating shaft. Outer rings of the at least three first rolling bearings are connected with an input wire, the outer wall of the first bearing seat is provided with a threading channel to accommodate the input wire, the input wire is used for communicating with an external circuit, and inner rings of the at least three first rolling bearings are connected with an output wire to supply power to the second driving assembly; the combined bearing comprises an outer support and a third rolling bearing, the outer support is in spherical fit with the outer ring of the third rolling bearing, and an oil guide groove is formed in the inner wall of the outer support. The output wire rotates along with the second rotating shaft, and the problem of winding of the output wire is solved. And the combined bearing meets the requirements of high-speed rotation and oscillating rotation of the second rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to an oscillating head mechanism and a fan using the oscillating head mechanism. Background Art

[0002] In the related art, the fan's shaking mechanism generally has two motors connected in sequence. When in use, the second motor is used to drive the fan blades to rotate, and the first motor is used to drive the second motor to rotate to achieve shaking. For a 360° shaking fan, since the second motor rotates continuously relative to the first motor, the power cord of the second motor will be entangled and broken, which will cause the shaking mechanism to interrupt operation. In addition, the shaft of the first motor will deflect while driving the fan blades to rotate, and ordinary bearings cannot meet the use requirements. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a shaking mechanism, which uses at least three bearings to conduct the circuit and a combined bearing, eliminates the problem of power cord winding, and meets the use requirements.

[0004] The utility model also provides a fan with the shaking head mechanism.

[0005] According to the first aspect of the utility model, the shaking mechanism includes a base, a first motor and a second motor. The rear end of the base is provided with a bottom plate, the bottom plate is provided with a first bearing seat, and the front end of the base is provided with a third bearing seat. The first motor is fixed to the bottom plate, and the first rotating shaft of the first motor is connected with at least three first rolling bearings, and at least three first rolling bearings are installed side by side on the first bearing seat, and the end of the first rotating shaft is provided with a second bearing seat; the second motor is connected to the second bearing seat, and the rotation axis of the second motor forms an angle with the rotation axis of the first motor. The second motor has a second rotating shaft, and the second rotating shaft is connected to a second rolling bearing at one end facing the first motor. The outer ring of at least three of the first rolling bearings is connected to an input wire, the outer wall of the first bearing seat is provided with a convex rib, and a threading channel is formed inside the convex rib to accommodate the input wire, and the input wire is used to connect an external circuit, and the inner ring of at least three of the first rolling bearings is connected to an output wire, and the output wire is connected to the second drive assembly to supply power to the second drive assembly; the combined bearing comprises an outer support and a third rolling bearing, the outer support and the outer ring of the third rolling bearing are spherically matched, and the inner wall of the outer support is provided with an oil guide groove, and the outer support is fixed to the inner wall of the third bearing seat.

[0006] The shaking mechanism according to the utility model has at least the following beneficial effects:

[0007] The second shaft of the second motor can drive the fan blades to rotate, thereby generating airflow. Since the rotation axis of the second motor forms an angle with the rotation axis of the first motor, the first motor drives the second motor to rotate through the first shaft to achieve shaking of the head. The outer rings of at least three first rolling bearings are connected to the external circuit through the input wires in the threading channel, and the inner rings are connected to the second motor through the output wires. The output wires rotate with the second shaft, eliminating the problem of output wire winding and preventing the second motor from experiencing power interruption during operation. The outer support of the combined bearing and the third rolling bearing can deflect the angle through the spherical surface, and lubricating oil is input through the oil guide groove to improve the lubrication performance, meet the requirements of the second shaft's own high-speed rotation and shaking of the head at the same time, and improve the reliability and stability of the shaking mechanism.

[0008] According to some embodiments of the first aspect of the utility model, the first bearing seat is a cylinder protruding from the bottom plate toward the third bearing seat, the convex rib is arranged on the upper side of the cylinder, the inner wall of the cylinder is provided with a S-shaped groove, the S-shaped groove passes through the cylinder and extends to the convex rib to form the threading channel.

[0009] According to some embodiments of the first aspect of the utility model, a groove is provided on the side of the base plate facing away from the third bearing seat, the first motor is installed in the groove, a fixing bayonet is provided on the inner wall of the groove, the first drive assembly is provided with a mounting lug, the mounting lug is located in the bayonet, and the mounting lug is fixed to the base plate by a fastener.

[0010] According to some embodiments of the first aspect of the utility model, one end of the cylinder facing away from the third bearing seat protrudes into the groove, a plurality of reinforcing ribs are provided in the groove, one end of the reinforcing ribs is connected to the side wall of the groove, and the other end is connected to the outer wall of the cylinder.

[0011] According to some embodiments of the first aspect of the utility model, the first bearing seat is provided with an insulating component, and one of the insulating components is arranged between two adjacent first rolling bearings to achieve insulation between the two adjacent first rolling bearings.

[0012] According to some embodiments of the first aspect of the utility model, the insulating component is an insulating sheet, which is annular and is mounted on the first rotating shaft, and the inner rings or outer rings of two adjacent first rolling bearings clamp one insulating sheet.

[0013] According to some embodiments of the first aspect of the utility model, the insulating component is a baffle arranged on the inner wall of the first bearing seat, the baffle is annular, and the outer rings of two adjacent first rolling bearings clamp one baffle.

[0014] According to some embodiments of the first aspect of the utility model, the first rotating shaft includes an inner shaft and an outer shaft, one end of the outer shaft is provided with a non-circular hole, the shape of the inner shaft matches the shape of the non-circular hole, the inner shaft is inserted into the non-circular hole, and the other end of the outer shaft is fixedly connected to the second bearing seat.

[0015] According to some embodiments of the first aspect of the utility model, the second motor is an outer rotor motor, the second rotating shaft is fixedly connected to the outer casing of the outer rotor motor, the base is provided with an accommodating cavity, the outer rotor motor is arranged in the accommodating cavity, and there is a gap between the outer casing of the outer rotor motor and the base.

[0016] The fan according to the second aspect of the utility model comprises the shaking mechanism as described in the first aspect of the utility model.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a shaking head assembly of an embodiment of the first aspect of the utility model;

[0020] Figure 2 A cross-sectional view of an oscillating head assembly according to an embodiment of the first aspect of the utility model;

[0021] Figure 3 A partial cross-sectional view of an oscillating head assembly of an embodiment of the first aspect of the utility model;

[0022] Figure 4 A cross-sectional view of a shaking head assembly of the first embodiment of the utility model Figure 1 ;

[0023] Figure 5 A cross-sectional view of a shaking head assembly of the first embodiment of the utility model Figure 2 ;

[0024] Figure 6 The structure of the bottom plate in the first embodiment of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 7 The structure of the bottom plate in the first embodiment of the utility model is shown in FIG. Figure 2 ;

[0026] Figure 8 It is a cross-sectional view of a combined bearing in an embodiment of the first aspect of the utility model.

[0027] Description of Figure Numbers:

[0028] A first motor 100, a first rotating shaft 110, an inner shaft 111, an outer shaft 112, a non-circular hole 1121, a second bearing seat 120, and a mounting lug 130;

[0029] A second motor 200, a second rotating shaft 210, an inner stator 220, and an outer rotor housing 230;

[0030] Base 300, accommodating cavity 301, cylinder 310, bottom plate 320, vent hole 321, groove 322, bayonet 323, first bearing seat 330, rib 331, third bearing seat 340, insulating sheet 350;

[0031] A first rolling bearing 410, a second rolling bearing 420, a combined bearing 430, an outer support 431, a third rolling bearing 432, and an oil guide groove 433;

[0032] Input wire 510 and output wire 520. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figures 1 to 5 The first embodiment of the utility model proposes a shaking mechanism, which includes a first motor 100, a second motor 200 and a base 300. The base 300 includes a cylinder 310 and a bottom plate 320, wherein the inner cavity of the cylinder 310 forms a accommodating chamber 301, a third bearing seat 340 is arranged at one end of the cylinder 310, the bottom plate 320 is fixed at the other end of the cylinder 310, the bottom plate 320 is provided with a first bearing seat 330, the first motor 100 is installed on the bottom plate 320, and the second motor 200 is installed in the accommodating chamber 301, and a plurality of vents 321 are arranged on the bottom plate 320, the vents 321 are connected to the accommodating chamber 301, thereby providing a channel for air circulation, helping the first motor 100 and the second motor 200 to cool down.

[0038] The first rotating shaft 110 of the first motor 100 is connected to three first rolling bearings 410, and the three first rolling bearings 410 are installed side by side in the first bearing seat 330. The three first rolling bearings 410 provide rotation support for the first rotating shaft 110, and the structure is stable and reliable. The end of the first rotating shaft 110 is provided with a second bearing seat 120; the rotation axis of the second motor 200 is set to be non-parallel to the rotation axis of the first motor 100, and the angle α formed by the rotation axis of the second motor 200 and the rotation axis of the first motor 100 is 10° to 20°, such as Figure 2 As shown, the angle α is 18°, and the angle α can also be 13°, 15°, 16°, etc., determined according to actual needs. The second motor 200 has a second shaft 210, and the second shaft 210 is connected to a second rolling bearing 420 at one end facing the first motor 100, and a combined bearing 430 at the other end. The second rolling bearing 420 is installed on the second bearing seat 120. Figure 6 and Figure 7 The outer wall of the first bearing seat 330 is provided with a convex rib 331, and a threading channel is formed inside the convex rib 331 to accommodate the input wire 510, so that the input wire 510 can smoothly extend to the outer wall of the base 300, which is convenient for connecting to an external circuit. The convex rib 331 can also protect the input wire 510 and prevent the input wire 510 from being collided or pressed. The convex rib 331 can also increase the structural strength of the first bearing seat 330 and improve the reliability of use.

[0039] Among them, the outer rings of the three first rolling bearings 410 are connected to the input wire 510, and the inner rings of the three first rolling bearings 410 are connected to the output wire 520. The input wire 510 is used to connect the external circuit, and the output wire 520 is connected to the second motor 200, so as to realize power supply to the second motor 200.

[0040] It is understandable that three first rolling bearings 410 are used because the three-phase windings (U, V and W) inside the second motor 200 need to be connected to three output wires 520 to meet the power supply requirements. In addition, four first rolling bearings 410 or more first rolling bearings 410 can also be installed, and one or more sets of input wires 510 and output wires 520 are reserved, which is conducive to rapid maintenance and replacement, reduces downtime, and improves user experience.

[0041] When the shaking mechanism is in operation, the second shaft 210 of the second motor 200 drives the fan blades to rotate, thereby generating airflow and bringing coolness to the user. Since the rotation axis of the second motor 200 forms an angle with the rotation axis of the first motor 100, the first motor 100 can drive the second motor 200 to rotate through the first shaft 110, thereby shaking the head and changing the direction of the wind. The outer rings of the three first rolling bearings 410 are connected to the external circuit through the input wire 510, and the inner rings are connected to the second motor 200 through the output wire 520. The circuit is turned on through the rolling element of the first rolling bearing 410 to supply power to the second motor 200. Because the output wire 520 rotates with the second motor 200, the problem of winding of the output wire 520 is eliminated, preventing the shaking assembly from power interruption during operation, thereby improving the reliability and stability of use.

[0042] Reference Figure 8 The combined bearing 430 includes an outer support 431 and a third rolling bearing 432. The outer support 431 and the outer ring of the third rolling bearing 432 are spherically matched, so that the third rolling bearing 432 can rotate relative to the outer support 431, that is, the axis of the third rolling bearing 432 forms an angle with the axis of the outer support 431. The outer support 431 is fixedly mounted on the third bearing seat 340, so that when the second rotating shaft 210 shakes and rotates, the third rolling bearing 432 can change direction with the second rotating shaft 210, and does not affect the high-speed rotation of the second rotating shaft 210. It can be understood that the outer support 431 is assembled from two half seats, and the two half seats are connected as a whole through interference fit, which is easy to assemble, and does not need to be assembled by heating or liquid nitrogen cooling, simplifying the production process. Moreover, an oil guide groove 433 (inner wall of the outer support 431) is formed at the connection between the two half seats, and lubricating oil or grease is added to the oil guide groove 433 to lubricate the outer support 431 and the third rolling bearing 432 to reduce wear.

[0043] Reference Figure 6 and Figure 7In some embodiments of the first aspect of the utility model, the first bearing seat 330 is a cylinder protruding from the bottom plate 320 toward the third bearing seat 340, the convex rib 331 is arranged on the upper side of the cylinder, and a slot is arranged on the inner wall of the cylinder, the slot passes through the cylinder and extends to the convex rib 331 to form the threading channel, so that the threading channel is connected to the installation cavity of the first bearing seat 330, which is convenient for assembling the first rolling bearing 410. The first rolling bearing 410 can be connected with the input wire 510 and the output wire 520 before being installed in the first bearing seat 330, which simplifies assembly and improves efficiency.

[0044] Reference Figures 5 to 7 It can be understood that a groove 322 is provided on the side of the bottom plate 320 away from the accommodating cavity 301, the first motor 100 is installed in the groove 322, and a fixing bayonet 323 is provided on the inner wall of the groove 322. The first motor 100 is provided with a mounting lug 130, the mounting lug 130 is installed in the bayonet 323, and the mounting lug 130 is fixed to the bottom plate 320 by a fastener, and the fastener can be a bolt or other forms of fasteners.

[0045] Reference Figure 7 One end of the cylinder away from the third bearing seat 340 protrudes into the groove 322, and a plurality of reinforcing ribs are arranged in the groove 322. One end of the reinforcing rib is connected to the side wall of the groove 322, and the other end is connected to the outer wall of the cylinder, so that the structural strength and rigidity of the cylinder are greatly increased, and the support for the first rotating shaft 110 is more stable and accurate, which is conducive to the stable operation of the first motor 100.

[0046] It can be understood that since the three first rolling bearings 410 correspond to three groups of power supply lines, the three first rolling bearings 410 need to be insulated from each other. The shaking head assembly can use an insulating component and arrange an insulating component between two adjacent first rolling bearings 410 to achieve insulation between the two adjacent first rolling bearings 410 to meet the circuit separation requirements.

[0047] Reference Figure 3 In some embodiments of the first aspect of the utility model, the insulating component is an insulating sheet 350, which is annular and mounted on the first rotating shaft 110. The inner rings of two adjacent first rolling bearings 410 clamp one insulating sheet 350, or the outer rings of two adjacent first rolling bearings 410 clamp one insulating sheet 350, and the insulating sheet 350 is used to achieve separation and insulation. The insulating sheet 350 can be made of plastic or rubber, without limitation.

[0048] It is understandable that in other embodiments of the first aspect of the present utility model, the insulating component is a baffle disposed on the inner wall of the first bearing seat 330, the baffle is annular, and the outer rings of two adjacent first rolling bearings 410 clamp a baffle, and the baffle is used to achieve separation and insulation. The baffle can be made of plastic or rubber, without limitation. The baffle and the first bearing seat 330 can be integrally formed, for example, the first bearing seat 330 is a plastic part, and the baffle is injection molded at the same time; the baffle and the first bearing seat 330 can also be assembled as a whole, and a slot is set inside the first bearing seat 330, and the baffle is inserted into the slot.

[0049] In addition, the first bearing seat 330 may be provided with three separated installation grooves, and a first rolling bearing 410 may be installed in each installation groove to achieve physical isolation and meet insulation requirements.

[0050] Referring to 2, considering that the two ends of the first rotating shaft 110 are respectively the first motor 100 and the second bearing seat 120, if the first rotating shaft 110 is an integrated structure, the three first rolling bearings 410 cannot be installed, and the optional scheme is that the second bearing seat 120 is a detachable structure, or the first rotating shaft 110 is a split structure, wherein the first rotating shaft 110 is a split structure, which is better for easy processing and assembly. Therefore, in some embodiments of the first aspect of the utility model, the first rotating shaft 110 includes an inner shaft 111 and an outer shaft 112, the inner shaft 111 is connected to the first motor 100 (mounting the rotor), the outer shaft 112 is connected to the second bearing seat 120, a non-circular hole 1121 is provided at one end of the outer shaft 112, the shape of the inner shaft 111 matches the shape of the non-circular hole 1121, and the inner shaft 111 is inserted into the non-circular hole 1121 to complete the assembly of the first rotating shaft 110.

[0051] During assembly, the three first rolling bearings 410 are assembled with the outer shaft 112 first, and then the inner shaft 111 is inserted into the non-circular hole 1121 . The non-circular hole 1121 can restrict the inner shaft 111 to achieve torque transmission.

[0052] Reference Figure 5 In some embodiments of the first aspect of the utility model, the non-circular hole adopts a D-shaped hole, and the side wall of the D-shaped hole forms a limited rotation plane. The limited rotation plane and the avoidance plane are arranged in parallel, which simplifies the structure of the outer shaft 112 and facilitates processing.

[0053] Reference Figure 4 and Figure 5In some embodiments of the first aspect of the utility model, the second motor 200 is an outer rotor motor, and the outer rotor motor includes an inner stator 220 and an outer rotor housing 230, wherein the inner stator 220 is fixedly connected to the second bearing seat 120, and the second rotating shaft 210 is fixedly connected to the outer rotor housing 230. When the second motor 200 is running, the outer rotor housing 230 drives the second rotating shaft 210 to rotate, while the inner stator 220 is fixed, mainly to keep the second bearing seat 120 and the inner stator 220 relatively fixed, so as to avoid the problem of winding of the output wire 520.

[0054] Reference Figure 2 The base 300 is provided with a accommodating cavity 301, and the outer rotor motor is arranged in the accommodating cavity 301. There is a sufficient gap between the outer rotor motor and the base 300. When the first motor 100 drives the outer rotor motor to rotate, the outer rotor motor will not collide with the base 300. In addition, the base 300 provides protection for the outer rotor motor to prevent the outer rotor motor from being collided or the user from contacting the outer rotor motor, thereby improving safety.

[0055] The second embodiment of the utility model proposes a fan, which includes a shaking mechanism as in the first embodiment, and the shaking mechanism includes a first motor 100, a second motor 200 and a base 300. The first motor 100 and the second motor 200 are both installed inside the base 300. The first rotating shaft 110 of the first motor 100 is connected with three first rolling bearings 410, and the rotation axis of the second motor 200 is set to be non-parallel to the rotation axis of the first motor 100. The outer rings of the three first rolling bearings 410 are connected to input wires 510, and the inner rings of the three first rolling bearings 410 are connected to output wires 520. The input wires 510 are used to connect to an external circuit, and the output wires 520 are connected to the second motor 200, so as to realize power supply to the second motor 200. Because the output wire 520 rotates with the second motor 200, the problem of winding of the output wire 520 is eliminated, and the phenomenon of power supply interruption during the operation of the shaking assembly is prevented, thereby improving the reliability and stability of use. The convex rib 331 can also protect the input wire 510 to prevent the input wire 510 from being collided or compressed. The convex rib 331 can also increase the structural strength of the first bearing seat 330 and improve the reliability of use.

[0056] Reference Figure 8The combined bearing 430 includes an outer support 431 and a third rolling bearing 432. The outer support 431 and the outer ring of the third rolling bearing 432 are spherically matched, so that the third rolling bearing 432 can rotate relative to the outer support 431, that is, the axis of the third rolling bearing 432 forms an angle with the axis of the outer support 431. The outer support 431 is fixedly mounted on the third bearing seat 340, so that when the second rotating shaft 210 shakes and rotates, the third rolling bearing 432 can change direction with the second rotating shaft 210, and does not affect the high-speed rotation of the second rotating shaft 210. It can be understood that the outer support 431 is assembled from two half seats, and the two half seats are connected as a whole through interference fit, which is easy to assemble, and does not need to be assembled by heating or liquid nitrogen cooling, simplifying the production process. Moreover, an oil guide groove 433 (inner wall of the outer support 431) is formed at the connection between the two half seats, and lubricating oil or grease is added to the oil guide groove 433 to lubricate the outer support 431 and the third rolling bearing 432 to reduce wear.

[0057] It should be understood that other structures and operations of the fan in the embodiment of the present invention are known to ordinary technicians in the field and will not be described in detail here.

[0058] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The shaking mechanism is characterized by: include: A base, wherein a bottom plate is disposed at the rear end of the base, a first bearing seat is disposed on the bottom plate, and a third bearing seat is disposed at the front end of the base; A first motor is fixed to the bottom plate, a first rotating shaft of the first motor is connected to at least three first rolling bearings, at least three first rolling bearings are installed side by side on the first bearing seat, and a second bearing seat is provided at the end of the first rotating shaft; a second motor connected to the second bearing seat, wherein the rotation axis of the second motor forms an angle with the rotation axis of the first motor, the second motor has a second rotating shaft, one end of the second rotating shaft facing the first motor is connected to a second rolling bearing, and the other end of the second rotating shaft is connected to a combined bearing, and the second rolling bearing is installed on the second bearing seat; Among them, the outer rings of at least three of the first rolling bearings are connected to the input wires, the outer wall of the first bearing seat is provided with convex ribs, and the interior of the convex ribs is formed with a threading channel to accommodate the input wires, and the input wires are used to connect to an external circuit, and the inner rings of at least three of the first rolling bearings are connected to the output wires, and the output wires are connected to the second motor to supply power to the second motor; the combined bearing includes an outer support and a third rolling bearing, the outer support and the outer ring of the third rolling bearing are spherically matched, and the inner wall of the outer support is provided with an oil guide groove, and the outer support is fixed to the inner wall of the third bearing seat.

2. The oscillating mechanism according to claim 1, characterized in that: The first bearing seat is a cylinder protruding from the bottom plate toward the third bearing seat, the convex rib is arranged on the upper side of the cylinder, the inner wall of the cylinder is provided with a S-shaped groove, the S-shaped groove passes through the cylinder and extends to the convex rib to form the threading channel.

3. The shaking mechanism according to claim 2, characterized in that: A groove is provided on the side of the base plate away from the third bearing seat, the first motor is installed in the groove, a fixing bayonet is provided on the inner wall of the groove, the first motor is provided with a mounting lug, the mounting lug is located in the bayonet, and the mounting lug is fixed to the base plate by a fastener.

4. The shaking mechanism according to claim 3, characterized in that: One end of the cylinder away from the third bearing seat protrudes into the groove, and a plurality of reinforcing ribs are arranged in the groove, one end of the reinforcing ribs is connected to the side wall of the groove, and the other end is connected to the outer wall of the cylinder.

5. The oscillating mechanism according to any one of claims 1 to 4, characterized in that: The first bearing seat is provided with an insulating component, and one of the insulating components is arranged between two adjacent first rolling bearings to achieve insulation between the two adjacent first rolling bearings.

6. The oscillating mechanism according to claim 5, characterized in that: The insulating component is an insulating sheet, which is annular and is mounted on the first rotating shaft. The inner rings or outer rings of two adjacent first rolling bearings clamp one insulating sheet.

7. The oscillating mechanism according to claim 5, characterized in that: The insulating component is a baffle disposed on the inner wall of the first bearing seat, the baffle is annular, and the outer rings of two adjacent first rolling bearings clamp one baffle.

8. The oscillating mechanism according to any one of claims 1 to 4, characterized in that: The first rotating shaft includes an inner shaft and an outer shaft, one end of the outer shaft is provided with a non-circular hole, the shape of the inner shaft matches the shape of the non-circular hole, the inner shaft is inserted into the non-circular hole, and the other end of the outer shaft is fixedly connected to the second bearing seat.

9. The oscillating mechanism according to claim 1, characterized in that: The second motor is an outer rotor motor, the second rotating shaft is fixedly connected to the outer shell of the outer rotor motor, the base is provided with an accommodating cavity, the outer rotor motor is arranged in the accommodating cavity, and there is a gap between the outer shell of the outer rotor motor and the base.

10. A fan, characterized in that: It comprises a shaking head mechanism as described in any one of claims 1 to 9.

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