Computer fan

Abstract

A computer fan includes a base frame, a fan blade body, and a positioning device. A base plate is arranged on the base frame. A shaft is arranged on the base plate. A through hole is arranged at a central position of the fan blade body for being sleeved on the shaft. The positioning device is for coupling to a top of the shaft, such that the fan blade body is located under the positioning device, and the positioning device is capable of being stabilized and rest on the shaft when the fan blade body is rotating relative to the shaft.

Claims

1. A computer fan comprising: a base frame, a base plate arranged on said base frame, a shaft arranged on said base plate, wherein a section and a groove are arranged on a top of said shaft, wherein said shaft has a hollow portion from said top of said shaft through a bottom of said shaft; a fan blade body having a through hole at a central position of said fan blade body, wherein said through hole is for being sleeved on said shaft; and a positioning device, said positioning device comprises a positioning plate, a circlip, and a platform, a plurality of buckle portions are arranged around said positioning plate, a corresponding through hole is arranged at a central position of said positioning plate corresponding to said through hole of said fan blade body, and said corresponding through hole has a corresponding section corresponding to said section on said top of said shaft said positioning device is used for coupling to said top of said shaft, such that said fan blade body is located under said positioning device, and such that said positioning plate is sleeved on said top of said shaft, and said positioning plate is position-constrained to said top of said shaft by clamping said circlip in said groove; and a plurality of corresponding buckle portions are arranged around said platform for buckling with said plurality of buckle portions of said positioning plate, such that said positioning plate is covered by said platform, and said positioning device is stabilized and rest on said shaft when said fan blade body is rotating relative to said shaft, wherein a display is arranged on a top of said platform, an external circuit is connected to said display by routing wires inside said hollow portion of said shaft.

2. The computer fan according to claim 1, wherein said fan blade body is configured with a depression portion, said through hole is arranged at a central position of said depression portion, said positioning device is capable of being accommodated in said depression portion when said positioning device is coupled to said top of said shaft.

3-6. (canceled)

7. The computer fan according to claim 16, wherein a concave hole is arranged on a bottom of said platform, and said concave hole is for covering on said top of said shaft.

8. The computer fan according to claim 16, wherein a display is arranged on said platform, and said display is capable of displaying patterns or texts on said platform by connecting an external circuit to said display.

9. (canceled)

Description

BRIEF DESCRIPTION OF DRAWINGS

[0014] FIG. 1 is the schematic perspective exploded view of an embodiment of computer fan of the present invention.

[0015] FIG. 2 is the schematic perspective view of an embodiment of the present invention before positioning device assembled.

[0016] FIG. 3 is the schematic perspective view of an embodiment of the present invention before circlip assembled.

[0017] FIG. 4 is the schematic perspective view of an embodiment of the present invention after positioning device assembled to shaft.

[0018] FIG. 5 is a cross-section schematic of an embodiment of computer fan of the present invention after assembled.

DETAILED DESCRIPTIONS OF PREFERRED EMBODIMENTS

[0019] Please refer to FIGS. 1-5, which show an embodiment of computer fan of the present invention. The computer fan comprises a base frame 1, a fan blade body 2 and a positioning device 3.

[0020] Abase plate 11 is arranged on the base frame 1. A hollow shaft 12 is arranged on the base plate 11. A section 121 and a groove 122 are arranged on a top of the shaft 12.

[0021] The fan blade body 2 is configured with a depression portion 21. A through hole 22 is arranged at a central position of the depression portion 21. The through hole 22 is for being sleeved on the shaft 12.

[0022] The positioning device 3 is for coupling to the top of the shaft 12, and the positioning device 3 is capable of being accommodated in the depression portion 21, such that the fan blade body 2 is located under the positioning device 3, and the positioning device 3 is capable of being stabilized and rest on the shaft 12 when the fan blade body 2 is rotating relative to the shaft 12.

[0023] The positioning device 3 comprises a positioning plate 31, a circlip 32 and a platform 33. A plurality of buckle portions 311 are arranged around the positioning plate 31. A corresponding through hole 312 is arranged at a central position of the positioning plate 31 corresponding to the through hole 22 of the fan blade body 2. And similarly the through hole 312 has a corresponding section 313 corresponding to the section 121 on the top of the shaft 12, such that the positioning plate 31 is capable of being sleeved on the top of the shaft 12, and the positioning plate 31 is capable of being position-constrained to the top of the shaft 12 by clamping the circlip 32 in the groove 122. A plurality of corresponding buckle portions 331 corresponding to the plurality of buckle portions 311 around the positioning plate 31 are arranged around the platform 33, such that the platform 33 is capable of being covered on the positioning plate 31. Furthermore, a display 332 is arranged on a top of the platform 33, such that the platform 33 is capable of displaying patterns or texts on the platform 33 by connecting an external circuit (the circuit can be routed in the hollow shaft 12) to the display 332. A concave hole 333 is arranged on a bottom of the platform 33, the concave hole 333 is for covering on the top of the shaft 12.

[0024] Therefore, in actual implementation, when the through hole 22 of the fan blade body 2 is sleeved on the shaft 12, the fan blade body 2 is capable of being rotating relative to the shaft 12. When the section 313 of the through hole 312 arranged at the central position of the positioning plate 31 is aligned to the corresponding section 121 on the top of the shaft 12, the positioning plate 31 is capable of being sleeved on the top of the shaft 12, and the positioning plate 31 is capable of being position-constrained to the top of the shaft 12 by clamping the circlip 32 in the groove 122. Finally, the platform 33 is covered on the positioning plate 31 and the shaft 12, so that when the fan blade body 2 is rotating, the platform 33 remains stationary.

[0025] Thus, the present invention has the following advantages: [0026] 1. Through the design of the present invention, when the fan blade body is rotating, the platform can still remain stationary, so that the brand LOGO or any other patterns, texts, or even images can be fully presented without being affected by fan's rotating. [0027] 2. The design structure of the present invention is simple and low in cost, which can greatly increase the use value of the fan. For consumers who like transparent (or light-transmitting) computer cases, the fan structure of the present invention can greatly improve appreciation and entertainment of the overall computer appearance.

[0028] As disclosed in the above description and attached drawings, the present invention can provide a compute fan. It is new and can be put into industrial use.

[0029] Although the embodiments of the present invention have been described in detail, many modifications and variations may be made by those skilled in the art from the teachings disclosed hereinabove. Therefore, it should be understood that any modification and variation equivalent to the spirit of the present invention be regarded to fall into the scope defined by the appended claims.