CN-224214401-U - Computer fan of outer drive structure

Abstract

The utility model discloses a computer fan with an external drive structure, which comprises a frame body and an impeller, wherein a pivot cavity is arranged in the middle of the frame body, a containing cavity is arranged in the frame body, a stator is arranged in the containing cavity, the impeller is pivotally arranged in the pivot cavity, the impeller comprises blades extending from an axle center to the direction of the pivot cavity and a ring frame arranged at the outer side end part of the blades, the ring frame is provided with a rotor matched with the stator, and the stator is used for driving the impeller to rotate. In actual design, change traditional put stator and rotor, set up stator and rotor respectively on the ring frame of framework and impeller, and then realized the rotation of impeller, its moment of torsion of computer fan after the improvement is bigger, consequently its rotation upper limit is higher, and drive area is bigger simultaneously, and consequently the heat dissipation of motor is better, can effectually improve computer fan's life.

Inventors

• WAN SHAN
• LIU BIQUAN
• ZENG QIONGYU
• LIU DIANSHENG
• CHEN WANGXIN

Assignees

• 惠州市鑫谷电子科技有限公司

Dates

Publication Date

20260508

Application Date

20250521

Claims (8)

1. 1. A computer fan of an externally driven structure, comprising: The device comprises a frame body, wherein a pivoting cavity is formed in the middle of the frame body, a containing cavity is formed in the frame body, and a stator is arranged in the containing cavity; the impeller is pivotally arranged in the pivot cavity and comprises blades extending from the axle center to the pivot cavity and a ring frame arranged at the outer end part of each blade, and the ring frame is provided with a rotor matched with the stator; The stator is used for driving the impeller to rotate.
2. 2. The computer fan with the external driving structure of claim 1, wherein a first bearing is arranged between the outer wall of the circular ring frame and the inner wall of the pivoting cavity.
3. 3. The computer fan with the external drive structure of claim 1, wherein the middle part of the blade is provided with a shaft hole, the frame body is provided with a rotating shaft matched with the shaft hole, and a second bearing is arranged between the rotating shaft and the shaft hole.
4. 4. The computer fan with the external drive structure of claim 3, wherein the shaft hole is a half hole.
5. 5. The computer fan with the external drive structure of claim 4, wherein the frame body is rectangular or circular.
6. 6. The computer fan with the external drive structure of claim 4, wherein the stator is a magnetic induction coil and the rotor is a permanent magnet.
7. 7. The computer fan with the external drive structure of claim 3, wherein the bottom of the frame extends to form a base, and the rotating shaft is arranged in the middle of the base.
8. 8. The computer fan with the external drive structure of claim 6, wherein the permanent magnet and the circular ring frame are integrally injection molded.

Description

Computer fan of outer drive structure Technical Field The present utility model relates to the field of computer fans, and in particular, to a computer fan with an external driving structure. Background Computer fans, also known as cooling fans, are commonly used for cooling. And the heat radiator and the case are provided for use. Along with the development of modularization fan, through setting up cooperation structure and then realizing the mutually supporting of a plurality of fans between the fan, be the direction of current design, can satisfy DIY designer's demand. In the existing computer fan design, the fan generally comprises a driving motor and a blade arranged at the driving end of the driving motor, so that the rotation of the blade is realized, but the fan with a center shaft structure has the following problems that the upper limit of the rotation speed is lower, so that the gravity center requirement is higher, and the problem that the rotation shaft is separated easily when the rotation speed is larger than a preset value. Meanwhile, in order to provide lamplight in the middle or a display screen, for example, the Chinese patent 201921468806.8 is designed, the structure is complex, and in the long-term working process, the damage (the rotating speed is higher, for example 2200 rpm) of wireless charging caused by abrasion is easy to occur, so that the use stability is influenced. Disclosure of utility model The utility model mainly aims to provide a computer fan with an external drive structure, and aims to improve the existing computer fan structure and adjust the structure according to actual needs. In order to achieve the above object, the present utility model provides a computer fan with an external driving structure, comprising: The device comprises a frame body, wherein a pivoting cavity is formed in the middle of the frame body, a containing cavity is formed in the frame body, and a stator is arranged in the containing cavity; the impeller is pivotally arranged in the pivot cavity and comprises blades extending from the axle center to the pivot cavity and a ring frame arranged at the outer end part of each blade, and the ring frame is provided with a rotor matched with the stator; The stator is used for driving the impeller to rotate. In the practical design, the traditional middle stator and rotor are changed, the stator and the rotor are respectively arranged on the frame body and the circular ring frame of the impeller, so that the rotation of the impeller is realized, the torque of the improved computer fan is higher, the upper limit of rotation is higher, the driving area is larger, the heat dissipation of the motor is better, and the service life of the computer fan can be effectively prolonged; The computer fan has the advantages that the external driving structure is matched with the hollow shaft, so that the effect of emitting light or displaying preset data in the middle of the computer fan is realized, the structure is simple and stable, and the existing traditional design is changed. Drawings FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a horizontal cross-sectional view of the present utility model; FIG. 3 is a schematic diagram of a half-shaft of the present utility model. FIG. 4 is a schematic view of the present utility model with a first bearing; FIG. 5 is a schematic view of the present utility model with a first bearing and display device; FIG. 6 is a schematic view of the present utility model with a second bearing and display device; Fig. 7 is a schematic perspective view of an impeller. In the drawing the view of the figure, 1 Is a frame body, 10 is a pivoting cavity, 11 is a containing cavity, 2 Is an impeller, 20 is a circular ring frame, 21 is a blade, 31 Is a stator, 32 is a rotor, 41 Is a first bearing, 42 is a second bearing, 51 Is a shaft hole, 52 is a rotating shaft, 53 is a through hole, 6 Is a display device, 61 is a first electrical connection portion, and 62 is a second electrical connection portion. Detailed Description The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, rear, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial are included herein), the directional indications are merely used to explain a relative positional relationship between components, a movement condition, etc. in a specific post