TWI438341B - Fan assembly - Google Patents

Description

Fan combination

The present invention relates to a fan assembly, and more particularly to a fan assembly having a fan guard.

With the continuous development of the electronics industry, the operating speed and overall performance of electronic components (especially the central processing unit) are constantly increasing, and the heat generation thereof is also increasing. In order to make the electronic components work normally, the industry generally uses a heat sink on the electronic components to dissipate heat. In order to accelerate the heat dissipation speed and quickly dissipate the heat generated by the electronic components out of the system, a fan is usually disposed on the heat sink to assist the device. Cooling. However, the existing fans are exposed to the air, and the dust in the air easily falls on the fan blades of the fan, which is polluted and difficult to clean, affecting the service life of the fan; in addition, the fan blades after the fan is started The rotation speed is very fast, and if the operator accidentally touches the blade, it is easily injured.

In view of this, it is necessary to provide a fan combination having a fan cover.

A fan assembly includes a fan and a protective cover coupled to the fan, the protective cover includes a frame and a dust cover disposed on the frame, the frame includes a body and a support frame extending upward from the body, the dustproof The periphery of the bottom of the cover is provided with an elastic member for placing the dust cover on the support frame.

Compared with the prior art, the present invention easily fixes the dust cover to the support through the elastic member. On the shelf, the operation is simple and convenient.

10‧‧‧fan

12‧‧‧ Subject

14‧‧‧ fan leaves

20‧‧‧ protective cover

22‧‧‧Frame

24‧‧‧ dust cover

124‧‧‧Upper lugs

122‧‧‧lower lugs

120‧‧‧ screw holes

220‧‧‧ body

222‧‧‧Support frame

225‧‧‧Support arm

227‧‧‧Positioning column

228‧‧‧Installation slot

224‧‧‧Support feet

226‧‧‧Flange

240‧‧‧Flexible components

2270‧‧‧ rib

Figure 1 is an exploded perspective view of the fan assembly of the present invention.

2 is a perspective assembled view of FIG. 1.

Figure 3 is a perspective enlarged view of the frame inverted in Figure 1.

Referring to FIG. 1 and FIG. 2, a fan assembly with a fan protection cover is disclosed in a preferred embodiment of the present invention for protecting a fan from dust pollution and preventing an operator from accidentally touching the blade and injuring the fan combination. The utility model comprises a fan 10 and a protective cover 20 fixed at the air inlet of the fan 10.

The fan 10 includes a hollow cylindrical body 12 and a driving member such as a blade 14 received in the main body 12. The main body 12 has two upper and lower ports, and four lower lugs 122 are uniformly protruded outwardly from the periphery of the lower port, and the upper edge of the upper port is also uniformly convex outwardly and parallel to the four upper lugs 124 of the lower lug 122. The upper lug 124 is used to mate with the protective cover 20. Each of the upper and lower lugs 124, 122 is provided with a screw hole 120 therein for cooperating with the protective cover 20.

Referring to FIG. 1 and FIG. 3 simultaneously, the protective cover 20 includes a frame 22 and a dust cover 24 wrapped around the frame 22. The frame 22 includes a rectangular body 220 and a support frame 222 located at the center of the body 220 and extending upwardly along the inner surface of the body 220 to be located on the body 220. The support frame 222 includes a support leg 224 that is bent upwardly along the inner surface of the body 220 and a plurality of support arms 225 that are radially disposed along the central axis of the body 220. The body 220 extends four corners outwardly from the four flanges 226. The lower surface of each of the flanges 226 extends vertically downwardly from a positioning post 227 for inserting into the screw hole 120 of the lug 124 above the fan 10. To fix the frame 22 to the upper port of the fan 10. The bottom of the positioning post 227 is cut along its circumference to form an annular inclined surface, and the advantageous positioning post 227 is introduced into the screw hole 120 of the lug 124 above the fan 10. The side wall of the positioning post 227 is uniformly symmetric with the circumference and is provided with a plurality of convexities. The rib 2270 is such that the positioning post 227 is locked in the upper lug 124 with an interference fit of the upper lug 124. A lower surface of each flange 226 is symmetrically disposed with a pair of rectangular mounting slots 228 along the positioning post 227. When the protective cover 20 needs to be detached from the fan 10, the tool can be placed in the mounting slot 228 and the frame 22 can be tilted upward. Therefore, the positioning post 227 of the protective cover 20 can be easily disengaged from the upper lug 124 of the fan 10, and the protective cover 20 can be detached from the fan 10, which is convenient to operate, saves time and labor.

The dust cover 24 is made of a porous material such as gauze or mesh material, which is good for gas permeability, and is suitable for blowing air into the fan 10 through the protective cover 20, and can be easily removed and cleaned at any time. The bottom of the dust cover 24 is sleeved with a resilient member 240 along its circumference. If a rubber band is placed on the bottom of the dust cover 24, the bottom of the dust cover 24 is sleeved on the support leg 224 of the frame 22 to ensure that the dust cover 24 is firmly fixed to the frame. 22 on. The dust cover 24 not only functions as a dustproof but also reduces the noise of the fan 10.

When assembled, the protective cover 20 is placed on the upper port of the main body 12 of the fan 10, and the positioning post 227 of the frame 22 of the protective cover 20 is inserted into the screw hole 120 of the lug 124 on the upper port of the fan 10, and the positioning post 227 is interference fit. The upper lug 124 is fixed to the fan 10; when the protective cover 20 needs to be removed, the protective cover 20 can be easily removed by simply applying the tool to the mounting groove 228 of the frame 22 of the protective cover 20. The fan 10 is removed. The fixing of the protective cover 20 and the fan 10 can be completed only by the positioning post 227 of the protective cover 20 being interference-fitted into the upper lug 124 of the fan, which is convenient to operate and has good stability.

In summary, the present invention conforms to the requirements of the invention patent, and proposes a patent application according to law. However, the above is only a preferred embodiment of the present invention, and those who are familiar with the skill of the present invention Equivalent modifications or variations made in accordance with the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧fan

12‧‧‧Ontology

14‧‧‧ fan leaves

20‧‧‧ protective cover

22‧‧‧Frame

24‧‧‧ dust cover

124‧‧‧Upper lugs

122‧‧‧lower lugs

120‧‧‧ screw holes

220‧‧‧ body

222‧‧‧Support frame

225‧‧‧Support arm

227‧‧‧Positioning column

228‧‧‧Installation slot

240‧‧‧Flexible components

226‧‧‧Flange

Claims (8)

A fan assembly comprising a fan and a protective cover coupled to the fan, wherein the protective cover comprises a frame and a detachable dust cover disposed on the frame, the frame comprising a body and extending upward from the body A support frame, the periphery of the bottom of the dust cover is provided with an elastic member for placing the dust cover on the support frame, and the body of the frame of the protection cover is provided with a mounting groove for the tool to act thereon. The fan assembly of claim 1, wherein the fan is provided with a lug, and the frame is provided with a positioning post inserted into the fan lug along the periphery thereof. The fan assembly of claim 2, wherein the side wall of the positioning post extends along the axial direction thereof to a rib that abuts the inner side surface of the fan lug. The fan assembly of claim 3, wherein each of the four corners of the frame body extends outwardly from a flange, and the positioning posts are disposed on the flanges one by one. The fan assembly of claim 1, wherein the support frame of the frame of the protective cover comprises a support leg extending upwardly along the inner side of the body, the elastic member tightening the bottom of the dust cover to the support leg. The fan assembly of claim 5, wherein the body of the frame of the protective cover is provided with a mounting groove for the tool to be placed at a position close to the positioning post. The fan assembly of claim 1, wherein the dust cover of the protective cover is made of a porous material having good air permeability. The fan assembly of claim 1, wherein the dust cover of the protective cover is a gauze wrapped around the periphery of the frame.