1. Field of the Invention
The present invention relates to a fan assembly for cooling and more particularly, to a detachable fan assembly, which is conveniently detachable to facilitate the performance of a maintenance work.
2. Description of the Related Art
Following fast development of computer technology, a variety of advanced computers have been created for different purposes and have appeared on the market. A computer has a power supply unit adapted to provide the system with the necessary working voltage. During operation of the computer, the power supply unit produces heat, which may affect the performance of other component parts inside the computer. In order to dissipate heat from the power supply unit, a fan may be used.
The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a fan assembly, which is detachable to facilitate the performance of a maintenance work. To achieve this and other objects of the present invention, the detachable fan assembly comprises detachable fan assembly comprises a casing and a fan set detachably mounted inside the casing. The fan set comprises a fan, a mounting frame adapted to hold the fan inside the casing, and a grille detachably fastened to an opening at one side of the casing to hold down the mounting frame in the casing. The mounting frame has a plurality of hooked portions respectively fastened to respective angled lugs at the casing. The grille has a locating flange and a plurality of protruding retaining portions for fastening to the casing, and a finger strip adapted for the pulling of the hand to separate the grille from the casing.
Referring to
The casing 1 has an opening 10 at one side, and a plurality of angled lugs 11 suspending at two opposite lateral sides of the opening 10 and projecting toward the inside of the casing 1. The angled lugs 11 each have a retaining hole 111.
The fan set 2 comprises a fan 21, a mounting frame 22, and a grille 23. The fan 21 has a plurality of mounting holes 211. The mounting frame 22 has a plurality of mounting holes 221 respectively fastened to the mounting holes 211 of the fan 21 with fastening members 24, and a plurality of hooked portions 222 symmetrically disposed at two opposite lateral sides. The grille 23 has a locating flange 231 disposed at one lateral side, and a plurality of protruding retaining portions 232 and a finger strip 233 disposed at the other lateral side.
Referring to
After a long use of the detachable fan assembly, the fan set 2 may be covered with a layer of dust. In this case, the fan set 2 must be removed from the casing 1 and well cleaned. By means of pulling the finger strip 233 outwards, the grille 23 is easily disconnected from the casing 1. After removal of the grille 23 from the casing 1, the hooked portions 222 of the mounting frame 22 are respectively disengaged from the retaining holes 111 of the angled lugs 11 of the casing 1, and then the fan 21 with the mounting frame 22 are removed from the casing 1.
Further, the aforesaid fastening members 24 can be screws, rivets, or any elements capable of securing the mounting holes 221 of the mounting frame 22 to the mounting holes 211 of the fan 21.
Further, in the aforesaid embodiment, the fan 21 and the mounting frame 22 are two independent members detachably fastened together. Alternatively, the mounting frame 22 can be formed integral with a part of the fan 21, i.e., the fan 21 can be made having hooked portions for engaging the retaining holes 111 of the angled lugs 11 of the casing 1.
As indicated above, the invention provides a detachable fan assembly, which has the following characteristics.
1. The detachable fan assembly can easily be assembled by: fastening the fan 21 and the mounting frame 22 with the fastening members 24, and then forcing the hooked portions 222 of the mounting frame 22 into engagement with the retaining holes 111 of the angled lugs 11 of the casing 1, and then forcing the locating flange 231 and protruding retaining portions 232 into engagement with a part of the casing 1 at two opposite lateral sides of the opening 10.
2. The detachable fan assembly can easily be detached for a maintenance work by pulling the finger strip 233 to disengage the grille 23 from the casing 1 for enabling the fan 21 with the mounting frame 22 to be separated from the angled lugs 11 of the casing 1.
Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.