Motor structure of oscillating fan

Abstract

The utility model discloses a motor structure of an oscillating fan, which comprises a motor shell and a gland, a motor support is arranged inside the motor shell, a hemispherical bulge is arranged at the center of the bottom surface of the motor support, and a shaft hole is arranged at the center of the hemispherical bulge; a fan motor is arranged on the motor support, a stator of the fan motor is fixed to the motor support through screws, the middle of a spindle of the fan motor is rotatably connected to the lower portion of the shaft hole through a first bearing, and the upper portion of the spindle of the fan motor is connected to the upper portion of the shaft hole through a second bearing. The oscillating motor is connected with the limiting cover through a swing arm; a horn-shaped through hole is formed in the center of the bottom wall of the motor shell. The fan motor support is reasonable in structural arrangement, the stator of the fan motor is directly fixed on the motor support, machining and assembling cost can be reduced, stable and effective rotation of a main shaft of the fan motor can be guaranteed, the hemispherical protrusions are integrally formed on the bottom face of the motor support, assembling difficulty is reduced, and assembling efficiency is improved. And the overall use stability and effectiveness can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of oscillating fan components, specifically relating to an oscillating fan motor structure. Background Technology

[0002] The oscillating fan motor is a crucial structural component of an electric fan. It comprises a housing, a drive motor, an oscillating motor, a swing arm, and a rotating ball head. The oscillating motor drives the drive motor to rotate 360 ​​degrees via the swing arm, and the rotating ball head performs a conical rotation at the housing to achieve oscillation control. For example, Chinese Patent Publication No. CN219760776U, entitled "A Rotationally Stable Oscillating Motor Assembly," includes a housing, a drive motor, a positioning bracket sleeved outside the drive motor, a control motor, and an oscillating connector. While this design can meet general usage requirements, it requires corresponding ball bearings for rotation. However, the need for ball bearings significantly increases processing and assembly costs. Furthermore, the assembly stability of the fan motor is limited, thus restricting its applicability. Utility Model Content

[0003] The purpose of this invention is to provide a oscillating fan motor structure that has a reasonable structural design and is conducive to improving the stability of use.

[0004] The technical solution to achieve the purpose of this utility model is an oscillating fan motor structure, including a motor housing and a cover fixed by screws. A motor support is provided inside the motor housing. A limit cover is fixed to the top of the motor support by screws. A hemispherical protrusion is integrally formed at the center of the bottom surface of the motor support, and a shaft hole is provided at the center of the hemispherical protrusion.

[0005] A fan motor is mounted on the motor support. The stator of the fan motor is fixed to the motor support with screws. The middle part of the main shaft of the fan motor is rotatably connected to the lower part of the shaft hole through a first bearing. The upper part of the main shaft of the fan motor is located at the center of the stator and is connected to the upper part of the shaft hole through a second bearing.

[0006] A swaying motor is fixed on the pressure cap, and the swaying motor is connected to the limiting cap through a swing arm;

[0007] A flared through hole is provided at the center of the bottom wall of the motor housing;

[0008] The hemispherical protrusion of the motor support is rotatably connected to the flared through hole of the motor housing.

[0009] The oscillating motor rotates, causing the motor support and the fan motor as a whole to rotate in a conical shape within the motor housing, with the hemispherical protrusion as the fulcrum.

[0010] A further preferred embodiment is that the outer wall of the hemispherical protrusion is provided with a plurality of strip-shaped grooves for dispensing lubricating oil;

[0011] The upper part of the inner wall of the trumpet-shaped through hole is provided with limiting arc-shaped protrusions at equal intervals, and the outer wall of the hemispherical protrusion is attached to the surface of the limiting arc-shaped protrusions.

[0012] A further preferred embodiment is that the motor support is provided with a wire-passing slot, and the conductive wires of the stator are passed through the wire-passing slot.

[0013] A further preferred embodiment is that a third bearing is provided at the connection between the swing arm and the limiting cover.

[0014] A further preferred embodiment is that a reinforcing rib is integrally formed on the bottom wall of the motor housing, and the reinforcing rib is arranged around the flared through hole.

[0015] A further preferred embodiment is that the swing arm includes a support plate, a vertical convex shaft integrally formed at the bottom end of the support plate, and an inclined protrusion integrally formed at the top end of the support plate.

[0016] The vertical convex shaft and the inclined protrusion are located at both ends of the support plate;

[0017] The vertical convex shaft is connected to the second bearing, and the main shaft of the oscillating motor is connected to the inclined protrusion.

[0018] A further preferred embodiment is that the diameter of the motor support is smaller than the inner diameter of the motor housing.

[0019] This utility model has the following positive effects: Its structure is rationally designed, directly fixing the stator of the fan motor to the motor support, thus reducing processing and assembly costs. The fan motor's main shaft is connected to the lower part of the shaft hole via a first bearing and to the upper part via a second bearing, ensuring stable and effective rotation of the fan motor's main shaft. Furthermore, the motor support has an integrally formed hemispherical protrusion on its bottom surface, reducing the need for ball bearings, lowering processing costs, and simplifying assembly. This also improves overall stability and effectiveness. Combined with the oscillating motor, it effectively achieves oscillation drive control, further enhancing operational stability and broad applicability. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the specific structure of the motor housing in this utility model;

[0025] Figure 5 This is a schematic diagram of the specific structure of the motor support in this utility model.

[0026] Reference numerals in the attached drawings: 1. Motor housing; 2. Pressure cover; 3. Motor support; 4. Limiting cover; 5. Hemispherical protrusion; 6. Shaft hole; 7. Fan motor; 71. Stator; 72. Main shaft; 8. First bearing; 9. Second bearing; 10. Oscillating motor; 11. Swing arm; 111. Support plate; 112. Vertical convex shaft; 113. Inclined protrusion; 12. Trumpet-shaped through hole; 13. Strip groove; 14. Limiting arc-shaped protrusion; 15. Wire through hole; 16. Reinforcing rib; 17. Third bearing. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example

[0029] See Figures 1 to 5 As shown, an oscillating fan motor structure includes a motor housing 1 and a pressure cover 2 fixed by screws. A motor support 3 is disposed inside the motor housing, and a limit cover 4 is fixed to the top of the motor support by screws. In this embodiment, the motor support, motor housing, and pressure cover are all metal structures; the support diameter of the motor support is smaller than the inner diameter of the motor housing. This structure ensures normal oscillating rotation of the motor support within the motor housing.

[0030] In this embodiment, the bottom surface of the motor support is integrally formed with a hemispherical protrusion 5, and the center of the hemispherical protrusion is provided with a shaft hole 6; the hemispherical protrusion is mainly used as a pivot point for swinging, ensuring the effectiveness of conical rotation, and reducing wear. At the same time, its integral forming can reduce the use of ball bearings, reduce processing costs, and also reduce assembly difficulty.

[0031] Furthermore, in this embodiment, a fan motor 7 is mounted on the motor support, and the stator 71 of the fan motor is fixed to the motor support by screws. The middle part of the main shaft 72 of the fan motor is rotatably connected to the lower part of the shaft hole through a first bearing 8, and the upper part of the main shaft of the fan motor is located at the center of the stator and is connected to the upper part of the shaft hole through a second bearing 9. The main shaft acts as a rotor in conjunction with the stator to achieve rotational drive, and the first and second bearings ensure the smoothness and reliability of the main shaft's rotation, preventing it from tilting or shifting.

[0032] Meanwhile, a oscillating motor 10 is fixed on the pressure cover, and the oscillating motor is connected to the limiting cover via a swing arm 11. The oscillating motor is a conventional structure in the prior art, while the swing arm is mainly used to realize the oscillating drive of the motor support and the fan motor as a whole. In this embodiment, a third bearing 17 is provided at the connection between the swing arm and the limiting cover. The swing arm includes a support plate 111, a vertical convex shaft 112 integrally formed on the bottom end of the support plate, and an inclined protrusion 113 integrally formed on the top end of the support plate. During processing, the vertical convex shaft and the inclined protrusion are located at both ends of the support plate. The vertical convex shaft is connected to a second bearing, and the main shaft of the oscillating motor is connected to the inclined protrusion. It can be a metal structure or a structure made of other materials, mainly used for oscillating drive operation.

[0033] In practical applications, a flared through hole 12 is provided at the center of the bottom wall of the motor housing; during assembly, the hemispherical protrusion of the motor support can be rotatably connected to the flared through hole of the motor housing; during use, the oscillating motor rotates, causing the motor support and the fan motor as a whole to rotate in a conical shape within the motor housing with the hemispherical protrusion as the fulcrum. This structure ensures the smoothness and effectiveness of the oscillating motion.

[0034] In practical applications, the outer wall of the hemispherical protrusion is provided with several strip-shaped grooves 13 for storing lubricating oil; the upper part of the inner wall of the funnel-shaped through hole is provided with equally spaced limiting arc-shaped protrusions 14, and the outer wall of the hemispherical protrusion is attached to the surface of the limiting arc-shaped protrusions. This structure allows for the storage of lubricating oil for lubrication, which helps reduce wear between the funnel-shaped through hole and the hemispherical protrusion, improving operational stability and service life.

[0035] In this embodiment, the motor support is provided with a wire-passing slot 15, and the stator's conductive wires pass through the wire-passing slot. This structure improves the convenience and effectiveness of connecting the conductive wires.

[0036] Furthermore, to enhance the overall structural strength, reinforcing ribs 16 are integrally formed on the bottom wall of the motor housing, and these ribs are positioned around the flared through-hole. This structure effectively prevents damage to the motor housing at the flared through-hole, improving operational stability and reliability.

[0037] This utility model has the following positive effects: Its structure is rationally designed, directly fixing the stator of the fan motor to the motor support, thus reducing processing and assembly costs. The fan motor's main shaft is connected to the lower part of the shaft hole via a first bearing and to the upper part via a second bearing, ensuring stable and effective rotation of the fan motor's main shaft. Furthermore, the motor support has an integrally formed hemispherical protrusion on its bottom surface, reducing the need for ball bearings, lowering processing costs, and simplifying assembly. This also improves overall stability and effectiveness. Combined with the oscillating motor, it effectively achieves oscillation drive control, further enhancing operational stability and broad applicability.

[0038] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A oscillating fan motor structure, comprising a motor housing and a cover fixed by screws, characterized in that: The motor housing is provided with a motor support inside. The top of the motor support is fixed with a limit cover by screws. The bottom surface of the motor support has an integrally formed hemispherical protrusion at the center, and the center of the hemispherical protrusion has a shaft hole. A fan motor is mounted on the motor support. The stator of the fan motor is fixed to the motor support with screws. The middle part of the main shaft of the fan motor is rotatably connected to the lower part of the shaft hole through a first bearing. The upper part of the main shaft of the fan motor is located at the center of the stator and is connected to the upper part of the shaft hole through a second bearing. A swaying motor is fixed on the pressure cover, and the swaying motor is connected to the limiting cover through a swing arm; A flared through hole is provided at the center of the bottom wall of the motor housing; The hemispherical protrusion of the motor support is rotatably connected to the flared through hole of the motor housing. The oscillating motor rotates, causing the motor support and the fan motor as a whole to rotate in a conical shape within the motor housing, with the hemispherical protrusion as the fulcrum.

2. The oscillating fan motor structure according to claim 1, characterized in that: The outer wall of the hemispherical protrusion is provided with several strip-shaped grooves for dispensing lubricating oil. The upper part of the inner wall of the trumpet-shaped through hole is provided with limiting arc-shaped protrusions at equal intervals, and the outer wall of the hemispherical protrusion is attached to the surface of the limiting arc-shaped protrusions.

3. The oscillating fan motor structure according to claim 1, characterized in that: The motor support is provided with a wire-passing slot, and the conductor wire of the stator passes through the wire-passing slot.

4. The oscillating fan motor structure according to claim 1, characterized in that: A third bearing is provided at the connection between the swing arm and the limiting cover.

5. The oscillating fan motor structure according to claim 1, characterized in that: The bottom wall of the motor housing is integrally formed with reinforcing ribs, which are arranged around the flared through hole.

6. The oscillating fan motor structure according to claim 1, characterized in that: The swing arm includes a support plate, a vertical convex shaft integrally formed at the bottom end of the support plate, and an inclined protrusion integrally formed at the top end of the support plate. The vertical convex shaft and the inclined protrusion are located at both ends of the support plate; The vertical convex shaft is connected to the second bearing, and the main shaft of the oscillating motor is connected to the inclined protrusion.

7. The oscillating fan motor structure according to claim 1, characterized in that: The diameter of the motor support is smaller than the inner diameter of the motor housing.

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