TW201302043A - Fan assembly - Google Patents

Abstract

A fan assembly includes a fan and a bracket. The bracket includes a first air vent opening and a second air vent opening in alignment with the first air vent opening. The fan is mounted in the bracket and aligned to the second air vent opening. The fan assembly further includes a guarding cover which is mounted between the fan and the first air vent opening. The guarding cover defines a through opening in alignment with the first air vent opening. A plurality of pieces is pivotally mounted in the through opening. The plurality of pieces is adapted to cover the through opening when the fan is not running, and adapted to be blown by the fan to uncover the through opening when the fan is running.

Description

Fan combination

The invention relates to a fan combination, in particular to a fan combination applied in an electronic device chassis such as a computer or a server.

In today's computer equipment, the server is widely used for its powerful functions, and various servers with different characteristics are developed for different needs, such as a network server with good stability and a mass storage function. Storage server, computing server with fast computing function, etc., the integration of these servers is very high, such as in the storage server, generally install a plurality of hard disk drives in a chassis of the server, in the computing server In the middle, a plurality of high-speed central processing units are installed on the motherboard, and the servers are mostly operated 24 hours a day, so that high demands are placed on the heat dissipation of the server chassis. A fan holder is usually installed in the chassis, and a plurality of fans are installed in the fan holder to dissipate heat from the chassis.

When the computer or server is not used for a long time, dust will enter the chassis through the opening of the server chassis at the fan holder, thus affecting the future use of the computer or server.

In view of the above, it is necessary to provide a dustproof fan combination.

A fan assembly includes a fan and a holder, the holder includes a first vent and a second vent, the fan is fixed to the holder and opposite to the second vent, the fan combination The utility model further includes a protective cover fixed between the fan and the first ventilation opening, the protective cover is provided with an opening corresponding to the first ventilation opening, and the plurality of sheets are pivotally mounted in the opening, and the plurality of sheets are pivotally mounted in the opening The sheet shields the opening when the fan is not in operation, and the sheets are rotated by the fan while the fan is running, so as not to obscure the opening.

Compared to the prior art, the fan of the present invention is combined with the sheet to shield the opening when the fan is not rotated, thereby preventing dust from entering.

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the fan assembly of the present invention includes a mounting bracket 20, a fan 30 and a shield 40.

The fixing frame 20 includes a first clamping plate 21 and a second clamping plate 23 parallel to each other. After the fixing frame 20 is mounted in an electronic device, the second clamping plate 23 is located inside the electronic device, and the first clamping plate 21 faces the outside of the electronic device; A clamping plate 21 and a second clamping plate 23 are both bent and disposed. A plurality of partitions 25 are connected between the first clamping plate 21 and the second clamping plate 23, so as to separate four identically sized containers on the fixing frame 20. a first venting opening 211 is defined in each of the accommodating chambers 27, and the first clamping plate 21 is respectively provided with a first venting opening 211. A venting opening 211 is defined in the venting opening 211, and a second venting opening 231 is defined in each of the accommodating chambers 27, and the first venting opening 211 is opposite to the second venting opening 231. A pair of spacers 251 are respectively disposed on the partitions 25 on both sides of the chamber 27, the spacers 251 are perpendicular to the partitions 25, and the distance between the spacers 251 and the first clamping plates 21 is small, and between the second clamping plates 23 The distance between the two partitions 251 of the two partitions 25 divides the accommodating chamber 27 into a fan installation space (not labeled). A shield mounting space (not numbered), and the fan installation space adjacent to the second plate 23, guard mounting space 21 adjacent to the first plate; each partition plate 25 is also provided with a fixing hole 253.

The fan 30 includes a frame 31 and a blade disposed in the frame 31. The frame 31 includes a side plate 34. The side plate 34 is provided with a curved and elastically deformable elastic piece 35. The elastic piece 35 is provided with a protrusion protruding from the side plate 34. 351.

Referring to FIG. 2 and FIG. 3 , the protective cover 40 includes a square frame 41 . The middle portion of the frame 41 extends upward to form a latching member 43 . The latching member 43 includes a connecting piece 431 , a flap 432 and a handle . 433, the connecting piece 431 is vertically connected to the frame 41, and the flap 432 is vertically bent from the upper end of the connecting piece 431. The free end of the folded piece 432 extends vertically upward to form the handle 433, and the flap 432 and the connecting piece 431 are formed. A snap block 435 is protruded from the joint; a middle portion of the frame body 41 is hollow and a square opening 418 is defined. The plurality of pivot shafts 413 are horizontally fixed in the opening 418 of the frame body 41 and rotatable relative to the frame body 41. The pivoting shafts 413 are sequentially arranged in parallel from the top to the bottom in the opening 418. Each of the pivoting shafts 413 is fixed with a single piece 46. Each of the sheets 46 includes a fixing portion 467 fixed to the pivoting shaft 413. With a free portion 468, the fixing portion 467 is fixed on the pivot shaft 413. The sheet 46 is substantially a rectangular piece. The sheet 46 is rotatable together with the pivot shaft 413. Each of the sheets 46 includes a first side surface 461. And a second side 462; in the two sheets 46 adjacent to the upper and lower sides, the upper sheet 46 The second side 462 of the free portion 468 is pressed against the first side 461 of the fixing portion 467 of the lower sheet 46. The sheets 46 shield the opening 418; the frame 41 is opposite to each of the sheets 46 on the inner side of the opening 418. A pair of baffles 417 are provided.

Referring to FIG. 1 to FIG. 5, during assembly, the fan 30 is installed in the fan installation space of the accommodating chamber 27, and the fan 30 slides along one side of the spacer 251, and the elastic piece 35 of the fan 30 abuts against the partition 25, and the elastic piece 35 is elastically deformed by being pressed, and the fan 30 is moved until the protrusion 351 of the elastic piece 35 opposes the fixing hole 253 of the partition plate 25, and the elastic piece 35 elastically recovers to fix the protrusion 351 into the fixing hole 253, thereby fixing the fan 30 to In the fan installation space, here, the fan 30 is opposed to the second vent 231 of the second platen 23.

Then, the shield 40 is loaded into the shield installation space of the accommodating chamber 27, and the shield 40 slides along the other side of the spacer 251, so that the second side 462 of the sheet 46 is opposed to the fan 30, and the shield 40 is The snap block 435 of the snap fastener 43 is snapped into the snap hole 213 of the first clamp plate 21 to fix the shield 40 into the shield installation space, where the first side 461 of the sheet 46 is The first vent 211 of a cleat 21 is opposite.

When the fan assembly is in operation, the fan 30 rotates to draw airflow from the second vent 231, and the airflow flows through the fan 30 to the second side 462 of the sheet 46 of the shield 40 due to the free portion 468 of the upper sheet 46. The second side 462 is pressed against the first side 461 of the fixing portion 467 of the lower sheet 46. The sheet 46 is blown to rotate to form a duct 80 between each two adjacent sheets 46 (see FIG. 5). So that the airflow flows out of the first vent 211, and the sheet 46 is blocked by the dam 417 to prevent excessive rotation; when the fan 30 is not required to dissipate heat, the sheet 46 shields the air passage 80 due to gravity, thereby obscuring the first A vent 211 prevents dust from entering the holder 20.

In summary, the present invention is in accordance with the conditions of the invention patent application, and the patent application is filed according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art to the spirit of the present invention should be included in the following claims.

20. . . Fixing frame

twenty one. . . First splint

211. . . First vent

213. . . Buckle hole

twenty three. . . Second splint

231. . . Second vent

25. . . Partition

251. . . bead

253. . . Fixed hole

27. . . Housing room

30. . . fan

31. . . frame

34. . . Side panel

35. . . shrapnel

351. . . Bump

40. . . protecting mask

41. . . framework

413. . . Pivot axis

417. . . Bar

418. . . Opening

43. . . Fastener

431. . . Connecting piece

432. . . Fold

433. . . handle

435. . . Buckle block

46. . . Page

461. . . First side

462. . . Second side

467. . . Fixed part

468. . . Free department

80. . . Wind tunnel

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective exploded view of a preferred embodiment of a fan assembly of the present invention.

2 is another perspective exploded view of the fan assembly of FIG. 1.

Figure 3 is a perspective view of a shield of the fan assembly of Figure 1.

4 is an assembled, isometric view of the fan assembly of FIG. 1.

Figure 5 is another perspective assembled view of the fan assembly of Figure 1.

20. . . Fixing frame

twenty one. . . First splint

211. . . First vent

213. . . Buckle hole

twenty three. . . Second splint

231. . . Second vent

25. . . Partition

251. . . bead

27. . . Housing room

30. . . fan

31. . . frame

40. . . protecting mask

Claims (10)

A fan assembly includes a fan and a holder, the holder includes a first vent and a second vent, the fan is fixed to the holder and opposite to the second vent, the fan combination The utility model further includes a protective cover fixed between the fan and the first ventilation opening, the protective cover is provided with an opening corresponding to the first ventilation opening, and the plurality of sheets are pivotally mounted in the opening, and the plurality of sheets are pivotally mounted in the opening The sheet shields the opening when the fan is not in operation, and the sheets are rotated by the fan while the fan is running, so as not to obscure the opening. The fan assembly of claim 1, wherein the plurality of pivot shafts are fixed in the opening and rotatable in the opening, the pivot shafts are arranged in parallel in the opening, and the sheets are fixed to the pivot shafts on. The fan assembly of claim 2, wherein each of the sheets comprises a fixed portion and a free portion fixed to the corresponding pivot shaft. The fan assembly of claim 3, wherein each of the sheets comprises a first side and a second side, and the second side of the free portion of the adjacent one of the two sheets is pressed against the phase On a first side of the fixed portion of the other of the two adjacent sheets, the second side of the sheets is opposite the fan. The fan assembly of claim 1, wherein the sheet is a rectangular sheet. The fan assembly of claim 1, wherein the inner side of the opening is respectively provided with a pair of ribs for each of the sheets, and the sheets are blown by the fan to rotate until the dams abut. The fan assembly of claim 1, wherein one side of the fan is provided with a spring piece, and the elastic piece is provided with a protrusion, the fixing frame is provided with a fixing hole, and the fan is loaded into the fixing frame, and the elastic piece is The bump is fixed in the fixing hole by pressing. The fan assembly of claim 1, wherein the fixing frame is provided with a snap hole, and the protective cover is provided with a snap block, and the snap block is snapped into the snap hole. The fan assembly of claim 1, wherein the spacer is provided with a spacer to separate the fan from the shield. The fan assembly of claim 1, wherein the opening is square.