Oscillating device of fan

Abstract

The utility model discloses a fan head shaking device which comprises a synchronous motor, a rear cover, a motor assembly, a lamp hub disc, a spherical bulb and a bulb limiting cover, the motor assembly comprises a motor fixing base base, a fixing base face cover, an eccentric shaft fixing base and a motor rotating shaft, the fixing base face cover is provided with a limiting pipe and a first clamping groove, and the eccentric shaft fixing base is provided with a second clamping groove. A limiting shell is arranged at the bottom of the lamp hub disc, a containing cavity is formed in an inner cavity of the limiting shell, a limiting hole with the diameter smaller than that of the ball head is formed in the containing cavity, a limiting groove is formed in the side face of the ball head, the ball head is integrally and symmetrically provided with two first buckles, a limiting groove is formed in the ball head limiting cover, a shaft hole is formed in the center of the bottom of the limiting groove, and a second buckle is arranged on the ball head limiting cover. A second clamping groove is formed in the bottom of the lamp hub disc, and a second limiting step protrusion is arranged on the inner wall of the containing cavity of the limiting shell. The LED bulb lamp has the advantages that the motor assembly, the lamp hub disc, the bulb and the bulb limiting cover are connected in a buckling mode, product assemblies are simplified, and installation and maintenance are easier and faster.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and specifically relates to a fan oscillation device. Background Technology

[0002] Conventional oscillating fans use an oscillating drive motor to drive an eccentric connecting rod, causing the fan part to oscillate. The fan part oscillates via the oscillating drive motor and the eccentric connecting rod. The fan's direction is changed through a ball joint structure. For example, patent CN220302419U describes an installation structure for a fan oscillation device and a fan using it, and patent CN217950742U describes a ceiling fan oscillation device, a fan, and a fan light, achieving wide-range oscillation airflow. These fans all use a linkage / swing rod connection structure to drive the oscillation. A fan oscillation device typically includes an oscillation drive component, a fan part driven and connected to the oscillation drive component, a connecting fixing component between the oscillation drive component and the fan part, a fan cover for covering the oscillation drive component, the fan part, and the fixing component, and a rear fixing cover for fixing the fan cover. However, the connections between these structures are all fastened and assembled using screws and screw holes. Due to the large number of components, their complex shapes, and the numerous assembly steps, the installation is time-consuming and affects production efficiency. Summary of the Invention

[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create an improved oscillation device for a fan, making it more industrially valuable.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A fan oscillation device includes a synchronous motor, a rear cover, a motor assembly, a lamp hub, a spherical ball head, and a ball head limiting cover. The motor assembly includes a fan motor, a mounting base for housing the motor, a mounting base cover, an eccentric shaft mounting base, and a rotating component (motor shaft) extending downwards from the bottom of the fan motor. The lower center of the mounting base cover is integrally formed with a limiting tube extending downwards, shaped like a square prism with a through-hole in the center, for the motor shaft to pass through.

[0006] As a further measure, the lower end of the fixed seat cover is provided with symmetrical slots on both sides of the limiting tube connection part;

[0007] As a further measure, the ball head is provided with an inner hole with a cross-section that is the same size and shape as the limiting tube, penetrating the center of the ball;

[0008] As a further measure, the side of the ball head is evenly provided with three limiting grooves parallel to the shaft hole.

[0009] As a further measure, the ball head is integrally formed and symmetrically provided with two stepped buckles that extend axially together with the shaft hole;

[0010] As a further measure, the fixing seat cover is connected to the ball head 5 by a snap-fit ​​connection through a slot at its lower end to fix the ball head in the receiving cavity at the bottom of the lamp hub disk;

[0011] As a further measure, the ball head limiting cover is integrally formed with an upwardly convex stepped limiting groove II;

[0012] As a further measure, the diameter of the second limiting groove is equal to the diameter of the accommodating cavity cylinder;

[0013] As a further measure, the cavity of the second limiting groove is hemispherical with a diameter larger than that of the ball head;

[0014] As a further measure, a shaft hole two is provided at the bottom center of the limiting groove two;

[0015] As a further measure, the ball head limiting cover is integrally formed with three evenly distributed stepped buckles.

[0016] As a further measure, the inner wall of the limiting groove 2 is provided with 3 limiting step protrusions whose positions and sizes are adapted to those of the limiting groove 1.

[0017] As a further measure, the bottom of the lamp hub disc is provided with a slot two that is compatible with the buckle two;

[0018] As a further measure, the ball head limiting cover is fixed to the bottom of the lamp hub disk by snapping with the second snap-fit ​​buckle and the second snap-fit ​​groove at the bottom of the lamp hub disk, and the limiting step protrusion on the inner wall of the limiting groove is engaged with the limiting groove on the side of the ball head.

[0019] As a further measure, the bottom center through hole of the lamp hub disc is integrally formed from the outside to the inside and protrudes into the housing to provide a limiting shell for accommodating the ball head;

[0020] As a further measure, a receiving cavity is provided inside the limiting shell;

[0021] As a further measure, the accommodating cavity is cylindrical;

[0022] As a further measure, the bottom of the accommodating cavity is provided with a limiting hole with a diameter smaller than that of the ball head for the motor shaft to pass through;

[0023] As a further measure, the inner wall of the accommodating cavity of the limiting shell is integrally formed with three limiting step protrusions whose positions and sizes are adapted to the limiting grooves;

[0024] As a further measure, an eccentric shaft is integrally provided at the lower end of the fixed base;

[0025] As a further measure, the eccentric shaft mounting base is provided with an eccentric shaft mounting hole and a synchronous motor shaft mounting hole;

[0026] As a further measure, a bearing is provided inside the eccentric shaft fixing hole;

[0027] As a further measure, the lower part of the fan motor is integrally provided with a downwardly extending rotating component, the motor shaft;

[0028] As a further measure, the base of the fixed seat is provided with a screw hole for fixed connection with the eccentric shaft fixed seat;

[0029] Furthermore, the size and shape of the fixed base and the fixed base cover correspond to each other and are provided with screw holes for connection and installation.

[0030] As a further measure, the port of the lamp hub disc is provided with mounting screw holes for fixed connection with the rear cover.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0032] This utility model discloses a fan oscillation device that uses a snap-fit ​​connection for the motor assembly, lamp hub, ball head, and ball head limit cover, thereby simplifying the product components and making installation and maintenance simpler and faster. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an exploded view of the overall device of the fan oscillation device described in this utility model;

[0035] Figure 2 This is a three-dimensional structural diagram of the lamp hub disc of the fan oscillation device described in this utility model;

[0036] Figure 3 This is a schematic diagram of the lamp hub structure of the fan oscillation device described in this utility model;

[0037] Figure 4 This is a schematic diagram of the ball head structure of the oscillating device of a fan according to the present invention;

[0038] Figure 5 This is a schematic diagram of the ball head limiting cover structure of the oscillating device of a fan according to the present invention;

[0039] Figure 6 This is a schematic diagram of the structure of the fixed base cover in the oscillation device of the fan described in this utility model;

[0040] Figure 7 This is a schematic diagram of the eccentric shaft fixing seat in the oscillation device of a fan according to the present invention;

[0041] Explanation of reference numerals in the attached drawings: 1. Synchronous motor; 2. Rear cover; 3. Fan motor; 4. Lamp hub disc; 5. Ball head; 6. Ball head limiting cover; 300. Motor shaft; 301. Fixing base; 3011. Eccentric shaft; 302. Fixing base cover; 303. Eccentric shaft fixing base; 3031. Eccentric shaft fixing hole; 3032. Synchronous motor shaft fixing hole; 3033. Bearing; 304. Limiting tube; 305. Slot one; 400. Limiting shell; 401. Accommodating cavity; 402. Limiting hole; 403. Slot two; 404. Limiting step protrusion two; 501. Shaft hole one; 502. Limiting groove one; 503. Buckle one; 600. Limiting groove two; 601. Shaft hole two; 602. Buckle two; 603. Limiting step protrusion one. Detailed Implementation

[0042] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0043] like Figure 1-7As shown, a fan oscillation device includes a synchronous motor 1, a rear cover 2 with mounting screw holes and free guide holes, a motor assembly A, a lamp hub disc 4 with an opening at one end and a through hole at the center of the bottom, a spherical ball head 5, and a ball head limiting cover 6. The motor assembly A includes a fan motor 3, a mounting base 301 for housing the fan motor 3, a mounting cover 302, and an eccentric shaft mounting base 303. The fan motor 3 has a downwardly extending rotating component, a motor shaft 300, integrally formed at its lower part. The mounting base 301 has an eccentric shaft 3011 integrally formed at its lower end. The mounting cover 302 has a downwardly extending, square-shaped prism with a through hole in the center at its lower center. A limiting tube 304 extends through the motor shaft 300; the lower end of the fixed seat cover 302 is symmetrically provided with slots 305 on both sides of the connecting part of the limiting tube 304; the eccentric shaft fixed seat 303 is provided with an eccentric shaft fixed hole 3031 and a synchronous motor shaft fixed hole 3032; a bearing 3033 is provided in the eccentric shaft fixed hole 3031; the fixed seat base 301 and the fixed seat cover 302 are corresponding in size and shape and are provided with screw holes for connection and installation; the fixed seat base 301 is provided with screw holes for fixed connection with the eccentric shaft fixed seat 303; the bottom center through hole of the lamp hub disk 4 is integrally formed from the outside to the inside and protrudes into the housing to provide a limiting shell 400 for accommodating the ball head 5; the... The inner cavity of the limiting shell 400 is provided with a cylindrical receiving cavity 401; the bottom of the receiving cavity 401 is provided with a limiting hole 402 with a diameter smaller than that of the ball head 5 for the motor shaft 300 to pass through; the opening of the lamp hub disk 4 is provided with a mounting screw hole for fixed connection with the rear cover 2; the ball head 5 is provided with a shaft hole 501 with an inner hole through the center of the ball and the same size and shape as the limiting tube 304; the side of the ball head 5 is provided with three limiting grooves 502 parallel to the shaft hole 501; the ball head 5 is integrally formed and symmetrically provided with two stepped buckles 503 extending coaxially with the shaft hole 501; the fixing seat cover 302 is connected to the stepped buckles 503 of the ball head 5 through the groove 305 at its lower end. The ball head 5 is fixed in place in the receiving cavity 401 at the bottom of the lamp hub disk 4 by a snap-fit ​​connection 503; the ball head limiting cover 6 is integrally formed with an upwardly convex stepped shape and a limiting groove 600 with an outer diameter equal to the diameter of the cylindrical cavity 401; the cavity of the limiting groove 600 is hemispherical with a diameter larger than that of the ball head 5; the bottom center of the limiting groove 600 is provided with a shaft hole 601; the inner wall of the limiting groove 600 is provided with three limiting stepped protrusions 603 whose positions and sizes are adapted to the limiting groove 502; the ball head limiting cover 6 is integrally formed with three evenly distributed snap-fit ​​buckles 602; the bottom of the lamp hub disk 4 is provided with a snap groove 403 adapted to the snap 602.The ball head limiting cover 6 is fixed to the bottom of the lamp hub disk 4 by a snap-fit ​​buckle 602 and a snap-fit ​​groove 403 at the bottom of the lamp hub disk 4, and the limiting step protrusion 603 on the inner wall of the limiting groove 600 is engaged with the limiting groove 502 on the side of the ball head 5; the inner wall of the accommodating cavity 401 of the limiting shell 400 is integrally formed with three limiting step protrusions 404 whose positions and sizes are adapted to the limiting groove 502; during assembly, the motor 3 is first placed into the fixing seat cover 302 and the motor shaft 300 is moved from the limiting tube 304. Through the middle, fix the base 301 and the cover 302 of the fixed seat with screws to install them. In this way, the motor assembly A can be assembled. Then, put the assembled motor assembly A into the lamp hub plate 4 so that the limiting tube 304 passes through the limiting hole 402 and enters the receiving cavity 401 and passes through the limiting hole 402 to extend out of the lamp hub plate 4. Then, put the ball head 5 into the receiving cavity 401 so that the limiting tube 304 enters the shaft hole 501 and the fixed seat cover (302) is fastened to the ball head (5) by the slot (305) at its lower end. (503) The ball head (5) is fixed in the receiving cavity (401) at the bottom of the lamp hub plate (4) by a snap-fit ​​connection through the limiting hole 402; then, the ball head limiting cover (6) is fixed in the bottom of the lamp hub plate (4) by snap-fit ​​fastener two (602) to the groove two (403) at the bottom of the lamp hub plate (4) and the ball head is fixed in the shaft hole two (601) at the bottom of the ball head limiting cover (6) by the limiting step protrusion one (603) on the inner wall of the limiting groove two (600) and the limiting groove one (502) on the side of the ball head (5). The eccentric shaft 3011 at the lower end of the fixed base 301 is inserted into the eccentric shaft fixing hole 3031 on the eccentric shaft fixing seat 303, and the eccentric shaft fixing seat 303 is rotatably connected to the fixed base 301. Finally, the synchronous motor (1) is installed on the top of the rear cover (2), and the rotating shaft at the lower end of the synchronous motor is inserted into the synchronous motor shaft fixing hole 3032 on the eccentric shaft fixing seat (303). The rear cover 2 is then screwed to the top of the lamp hub plate 4. When assembling the finished product, only the fan blade needs to be installed on the motor rotating shaft 300 at the bottom of the lamp hub plate 4.

[0044] In terms of effectiveness, the motor assembly A, lamp hub disc, ball head, and ball head limit cover are set to snap-fit ​​connection, which simplifies the product components and makes installation and maintenance simpler and faster.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fan oscillation device, comprising a synchronous motor (1), a rear cover (2), a motor assembly (A), a lamp hub disc (4), a spherical ball head (5), and a ball head limiting cover (6), wherein, The motor assembly (A) includes a fan motor (3), a mounting base (301) for housing the fan motor (3), a mounting cover (302), and an eccentric shaft mounting base (303). The fan motor (3) has an integrally formed downward-extending rotating component, a motor shaft (300), at its lower part. The mounting cover (302) has an integrally formed downward-extending limiting tube (304) with a square column shape and a through-hole in the center, for the motor shaft (300) to pass through. The lower end of the mounting cover (302) is located within the limiting tube (304). The connecting part is symmetrically provided with a slot (305) on both sides; the bottom center through hole of the lamp hub disk (4) is integrally formed from the outside to the inside and protrudes into the housing to provide a limiting shell (400) for accommodating the ball head (5); the limiting shell (400) is provided with an accommodating cavity (401); the ball head (5) is provided with a shaft hole (501) with the same cross-section and shape as the limiting tube (304) through the center of the ball; the side of the ball head (5) is evenly provided with 3 limiting grooves (502) parallel to the shaft hole (501); the ball head (5) is integrally formed with 2 symmetrical grooves parallel to the shaft hole (501) 501) A stepped buckle (503) extending coaxially; the fixed seat cover (302) is connected to the stepped buckle (503) of the ball head (5) by a snap-fit ​​groove (305) at its lower end to fix the ball head (5) in the receiving cavity (401) at the bottom of the lamp hub disk (4); the ball head limiting cover (6) is integrally formed with an upwardly convex stepped limiting groove (600); the bottom center of the limiting groove (600) is provided with a shaft hole (601); the ball head limiting cover (6) is integrally formed with three evenly distributed stepped buckles (602); the The bottom of the lamp hub disc (4) is provided with a slot two (403) that is compatible with the buckle two (602); the inner wall of the accommodating cavity (401) of the limiting shell (400) is integrally formed with three limiting step protrusions two (404) whose positions and sizes are compatible with the limiting groove one (502); the ball head limiting cover (6) is fixed to the bottom of the lamp hub disc (4) by snapping the buckle two (602) and the slot two (403) at the bottom of the lamp hub disc (4), and the limiting step protrusion one (603) on the inner wall of the limiting groove two (600) is locked with the limiting groove one (502) on the side of the ball head (5).

2. The oscillation device for a fan according to claim 1, characterized in that: An eccentric shaft (3011) is integrally provided at the lower end of the fixed base (301); the size and shape of the fixed base (301) and the fixed cover (302) correspond to each other; the eccentric shaft fixing seat (303) is provided with an eccentric shaft fixing hole (3031) and a synchronous motor shaft fixing hole (3032); a bearing (3033) is provided in the eccentric shaft fixing hole (3031); after the eccentric shaft (3011) is inserted into the eccentric shaft fixing hole (3031) on the eccentric shaft fixing seat (303), the eccentric shaft fixing seat (303) and the fixed base (301) are rotatably connected.

3. The oscillation device for a fan according to claim 1, characterized in that: The accommodating cavity (401) is cylindrical; the bottom of the accommodating cavity (401) is provided with a limiting hole (402) with a diameter smaller than that of the ball head (5) through which the motor shaft (300) passes.

4. The oscillation device for a fan according to claim 1, characterized in that: The cavity of the second limiting groove (600) is a hemispherical shape with a diameter larger than that of the ball head (5); the inner wall of the second limiting groove (600) is provided with three limiting step protrusions (603) whose positions and sizes are adapted to the first limiting groove (502); the diameter of the second limiting groove (600) is equal to the diameter of the cylindrical cavity (401).

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