CN103298316A - Fan louver - Google Patents

Abstract

A fan shutter, comprising a front plate, a blade assembly and a fixing frame, the blade assembly is fixed on the fixing frame, the blade assembly includes several blades that can rotate around a pivot axis relative to the fixing frame, the fan The shutter also includes a weight, the weight is fixed on the fixed frame, the front plate is provided with an installation opening, the fixed frame is rotatably installed in the installation opening, and the fixed frame can be mounted on the Under the action of the gravity of the weight, the position of the vane assembly is adjusted by rotating relative to the fixed frame in the installation opening.

Description

fan shutters

technical field

The invention relates to a fan louver, in particular to a fan louver used in electronic device casings such as computers or servers.

Background technique

In the current server design, there is a case that can be placed horizontally as a rack server and can be placed vertically as a tower server. However, in the case of horizontally placed and vertically placed chassis, traditional fan shutters need to be manually opened to re-adjust the direction in order to ensure the normal use of the fan shutters.

Contents of the invention

In view of the above, it is necessary to provide a fan shutter that can be adjusted automatically.

A fan shutter, comprising a front plate, a blade assembly and a fixing frame, the blade assembly is fixed on the fixing frame, the blade assembly includes a plurality of blades that can rotate around a pivot axis relative to the fixing frame, the fan The shutter also includes a weight, the weight is fixed on the fixed frame, the front plate is provided with a mounting opening, the fixed frame is rotatably installed in the mounting port, and the fixed frame can be mounted on the Under the action of the gravity of the weight, the position of the vane assembly is adjusted by rotating relative to the fixed frame in the installation opening.

In one embodiment, the fan louver further includes a positioning member, and the blade combination is rotatably fixed between the fixing frame and the positioning member, and the fixing frame includes a fixing plate and a blade extending from the fixing plate. A fixing ring and a fixing part, the positioning member includes a positioning plate and a positioning ring extending from the positioning plate, the positioning plate is roughly parallel to the fixing plate, the fixing ring and the positioning ring are located on the positioning plate and between the fixed plates.

In one embodiment, the fan shutter further includes balls, the fixing ring is provided with a first receiving groove, the positioning ring is provided with a second receiving groove, the first receiving groove is aligned with the second receiving groove, And the ball is rotatably accommodated between the first receiving groove and the second receiving groove.

In one embodiment, the balls are in contact with the inner wall of the installation ring and can slide along the inner wall of the installation ring.

In one embodiment, the blade combination further includes several pivot shafts, the blades are fixed on the pivot shafts, the fixing part includes two first fixing pieces and two second fixing pieces, and the two first fixing pieces The fixing pieces are substantially parallel, and the two second fixing pieces are provided with fixing grooves, and the pivot shaft is rotatably accommodated in the fixing grooves.

In one embodiment, the fixing plate is provided with two fixing columns, and the two fixing columns are provided with fixing holes respectively, and the positioning plate is provided with positioning holes, and the fixing holes and the positioning holes are used to fix the The fixing frame, the positioning member, and the two fixing columns are located between the first fixing piece and the fixing ring.

In one embodiment, the fixing ring surrounds the fixing part, and the weight is fixed between the two fixing posts, and is located between the fixing plate and the positioning plate.

In one embodiment, the fan louver further includes a rear plate, the rear plate is fixed on the front plate, the front plate and the rear plate can rotate around a rotating shaft relative to the fixed frame, and the rotating shaft substantially perpendicular to the pivot axis.

In one embodiment, the front panel is provided with a first panel body and a first flange extending from the first panel body, and the rear panel includes a second panel body and a first flange extending from the second panel body. The second edge is folded, the first plate is substantially parallel to the second plate, the fixing plate is against the first plate, the positioning plate is against the second plate, and the first plate is against the second plate. A plate body and the second plate body are located between the fixing plate and the positioning plate.

In one embodiment, the front plate includes a mounting ring extending from the first plate body, the front plate is provided with a mounting opening, the mounting ring extends from the edge of the mounting opening, the fixing part and The fixing ring is located between the installation rings, and the ball is located between the fixing part and the installation ring.

Compared with the prior art, in the above-mentioned fan louver, when in use, the fan louver is fixed on a panel of a casing, and when the casing rotates around an axis parallel to the rotating shaft to change positions, the front plate will As the casing rotates. The fixed frame and the combination of blades rotate relative to the fixed frame under the gravity of the weight, so as to keep the original position unchanged. In this way, the blade assembly of the fan shutter can automatically adjust its position, and there is no need to manually open the casing for adjustment.

Description of drawings

Fig. 1 is an exploded perspective view of a preferred embodiment of the fan shutter of the present invention.

FIG. 2 is another perspective view of FIG. 1 .

FIG. 3 is a partially enlarged view of FIG. 1 .

FIG. 4 is a partial assembly view of FIG. 1 .

FIG. 5 is a perspective assembly view of FIG. 1 .

Fig. 6 is a three-dimensional assembly view of a preferred embodiment of the fan louver of the present invention and a panel of a casing.

FIG. 7 is a three-dimensional assembly view of the fan louver of the present invention after the panel of the casing in FIG. 6 is rotated at an angle.

Description of main component symbols

Ger 10 first board 11 first installation port 112 mounting column 113 Mounting holes 1131 first hem 13 Hook 131 mounting ring 15 rear panel 20 second board twenty one Second installation port 212 keyhole 213 second hem twenty three card slot 231 Fixture 30 fixed plate 31 first fixed port 311 Fixed column 315 Fixing hole 3151 M 32 first containment tank 321 fixed part 35 first fixed piece 351 Second fixed piece 352 fixed slot 3521 blade combination 40 pivot axis 46 blade 47 fixed part 471 Ministry of Freedom 473 Positioner 50 Positioning plate 51 Second fixed port 511 positioning hole 515 Locating ring 53 Second tank 531 ball 60 heavy block 70 first lock 80 Second lock 90 panel 100

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Please refer to FIG. 1 and FIG. 2 , in a preferred embodiment of the present invention, a fan louver includes a front panel 10 , a rear panel 20 , a fixing frame 30 , a positioning member 50 and a blade assembly 40 .

The front panel 10 includes a first panel body 11 and first folded edges 13 respectively extending from four edges of the first panel body 11 . The first plate body 11 is substantially square, and defines a circular first installation opening 112 in the center. A mounting ring 15 extends from an edge of the first mounting opening 112 . A mounting post 113 protrudes from four corners of the first board body 11 respectively. Each mounting post 113 defines a mounting hole 1131 . Each first edge 13 is provided with a plurality of elastic hooks 131 .

The rear panel 20 includes a second panel body 21 and second folded edges 23 respectively extending from edges of the second panel body 21 . The second plate body 21 is substantially square, and defines a circular second installation opening 212 in the center. Four corners of the second plate body 21 respectively define a locking hole 213 . Each second edge 23 defines a plurality of slots 231 for locking the hooks 131 .

Please also refer to FIG. 3 , the fixing frame 30 includes a fixing plate 31 , a fixing ring 32 extending from the fixing plate 31 and a fixing portion 35 . The fixing plate 31 defines a first fixing opening 311 . The fixing portion 35 extends along the edge of the first fixing opening 311 and includes two opposite first fixing pieces 351 and two opposite second fixing pieces 352 . In one embodiment, the first fixing pieces 351 are parallel to each other, and the second fixing pieces 352 are arc-shaped pieces. The fixing ring 32 surrounds the fixing portion 35 and defines a plurality of first receiving grooves 321 along the direction of the fixing portion 35 . In one embodiment, the distance between every two adjacent first receiving grooves 321 is equal. Two fixing posts 315 protrude from the fixing plate 31 between each first fixing piece 351 and the fixing ring 32 . Each fixing post 315 defines a fixing hole 3151 . Several pairs of fixing grooves 3521 are defined in corresponding positions of the two second fixing pieces 352 . The fixing groove 3521 can be used for installing the blade assembly 40 .

The positioning member 50 includes a positioning plate 51 and a positioning ring 53 extending from the positioning plate 51 . The positioning plate 51 defines a second fixing opening 511 . The shape of the second fixing opening 511 is substantially the same as that of the first fixing opening 311 . The positioning plate 51 is provided with a plurality of positioning holes 515 corresponding to the fixing posts 315 . The positioning ring 53 defines a plurality of second receiving grooves 531 inwardly. In one embodiment, the distance between every two adjacent second receiving grooves 531 is equal.

The vane assembly 40 includes several vanes 47 and a pivot shaft 46 fixed on the vanes 47 . Each blade 47 respectively includes a fixed portion 471 and a free portion 473 , and the fixed portion 471 is fixed on the pivot shaft 46 . Each blade 47 is rotatable together with the corresponding pivot shaft 46 .

The fan shutter also includes several balls 60 and a weight 70 . The ball 60 can be accommodated between the first receiving groove 321 and the second receiving groove 531 . The weight 70 can be accommodated between two fixing columns 315 located on one side of the first fixing piece 351 to be fixed on the fixing plate 31 .

Referring to FIG. 4 and FIG. 5 , during installation, the fixing frame 30 is placed close to the front panel 10 . The fixing frame 30 is moved so that the fixing portion 35 , the fixing post 315 and the fixing ring 32 pass through the first installation opening 112 of the front panel 10 and are located between the installation rings 15 . The fixing plate 31 leans against the first plate body 11 . The fixing frame 30 and the front board 10 are horizontally placed on an installation surface (not shown), and the fixing board 31 and the first board body 11 are substantially parallel to the installation surface. The ball 60 is placed in the first receiving groove 321 and located between the installation ring 15 and the fixing portion 35 . The pivot shaft 46 of the blade 47 is placed in each pair of the fixing slots 3521 . Among the two vertically adjacent blades 47 , the inner side of the free portion 473 of the upper blade 47 is pressed against the outer side of the fixed portion 471 of the lower blade 47 . The weight 70 is placed between the two fixing columns 315 at one end of the fixing frame 30 to be fixed on the front fixing plate 31 . The weight 70 is located between the first fixing piece 351 and the fixing ring 32 . The rear board 20 is moved in a direction close to the front board 10 . The rear panel 20 drives the hook 131 of the front panel 10 to elastically deform. When the hook 131 is aligned with the slot 231 of the rear panel 20 , the hook 131 returns elastically so as to be locked in the slot 231 . At this time, the lock hole 213 is aligned with the installation hole 1131 of the installation post 113 . The rear board 20 is fixed on the front board 10 by using a plurality of first locking members 80 , such as screws, to be screwed into the installation holes 1131 and the fixing holes 3151 . The positioning member 50 is moved in a direction close to the rear plate 20, the positioning ring 53 is aligned with the second installation opening 212, the second receiving groove 531 is aligned with the first receiving groove 321, and the positioning The hole 515 is aligned with the fixing hole 3151 of the fixing post 315 . The positioning member 50 is moved until the positioning plate 51 abuts against the outer surface of the second plate body 21 . Utilize a plurality of second locking members 90, such as screws, etc. to pass through the positioning hole 515 and the fixing hole 3151, thereby fixing the positioning member 50 on the fixing frame 30, then the fixing frame 30, the The vane assembly 40 and the positioning member 50 are fixed together and accommodated in the first installation opening 112 of the front panel 10 and the second installation opening 212 of the rear panel 20, and because the ball 60 and the The inner wall of the installation ring 15 is in contact with and can slide along the inner wall of the installation ring 15 , then the fixing frame 30 , the blade assembly 40 , and the positioning member 50 can be positioned at the first installation opening 112 and rotate in the second installation port 212. The positioning plate 51 is substantially parallel to the fixing plate 31 , and the fixing ring 32 and the positioning ring 53 are located between the positioning plate 51 and the fixing plate 31 . At this time, the blade assembly 40 is rotatably fixed between the positioning member 50 and the fixing frame 30, and the blade 47 can rotate around the pivot shaft 46, and the weight 70 is positioned on the positioning plate 51 and the first plate body 11, the positioning ring 53 abuts against the fixed ring 32, and the ball 60 is slidably accommodated between the first receiving groove 321 and the second receiving groove 531. between. The front plate 10 and the rear plate 20 rotate around a rotation axis (not shown) relative to the fixing frame 30 and the positioning member 50 under the action of the ball 60 . The axis of rotation is substantially perpendicular to the pivot axis 46 .

Please refer to FIG. 6 and FIG. 7 , when in use, the rear plate 20 of the fan louver is fixed on the panel 100 of a casing through a fixing bracket (not shown). When the cabinet is rotated, the panel 100 is rotated in direction A or direction B. Referring to FIG. The front panel 10 and the rear panel 20 rotate along the direction A or the direction B correspondingly. Under the effect of the weight 70 and the ball 60 , the fixing frame 30 and the positioning member 50 will not rotate with the front board 10 and the rear board 20 . Therefore, the positions of the fixing frame 30 and the positioning member 50 remain unchanged. The position of the vane assembly 40 also does not change. In this way, there is no need to manually adjust the position of the vane assembly 40 .

Claims (10)

1. A fan shutter, comprising a front plate, a blade assembly and a fixed frame, the blade assembly is fixed on the fixed frame, the blade assembly includes a plurality of blades that can rotate around a pivot axis relative to the fixed frame, its The feature is that: the fan shutter also includes a weight, the weight is fixed on the fixing frame, the front plate is provided with an installation opening, the fixing frame is rotatably installed in the installation opening, the The fixing frame can rotate relative to the fixing frame in the installation opening under the action of gravity of the weight to adjust the position of the blade assembly. 2. The fan louver according to claim 1, characterized in that: the fan louver further includes a positioning member, the combination of blades is rotatably fixed between the fixing frame and the positioning member, and the fixing frame includes There is a fixed plate and a fixed ring and a fixed part extending from the fixed plate, the positioning member includes a positioning plate and a positioning ring extending from the fixed plate, the positioning plate is roughly parallel to the fixed plate, and the fixed The ring and the positioning ring are located between the positioning plate and the fixing plate. 3. The fan louver according to claim 2, characterized in that: the fan louver further includes balls, the fixing ring is provided with a first receiving groove, the positioning ring is provided with a second receiving groove, and the first receiving groove is provided. A receiving groove is aligned with the second receiving groove, and the ball is rotatably accommodated between the first receiving groove and the second receiving groove. 4. The fan shutter according to claim 3, wherein the balls are in contact with the inner wall of the installation ring and can slide along the inner wall of the installation ring. 5. The fan shutter according to claim 3, characterized in that: the blade combination further includes a plurality of pivot shafts, the blades are fixed on the pivot shafts, and the fixing part includes two first fixing pieces and The two second fixing pieces are substantially parallel to the two first fixing pieces, and the two second fixing pieces are provided with fixing grooves, and the pivot shaft is rotatably accommodated in the fixing grooves. 6. The fan louver according to claim 5, characterized in that: the fixing plate is provided with two fixing posts, the two fixing posts are provided with fixing holes respectively, the positioning plate is provided with positioning holes, and the fixing The hole and the positioning hole are used to fix the fixing frame and the positioning member, and the two fixing columns are located between the first fixing piece and the fixing ring. 7. The fan shutter according to claim 6, wherein the fixing ring surrounds the fixing part, the weight is fixed between the two fixing columns, and is located on the fixing plate and the positioning between the boards. 8. The fan louver according to claim 5, characterized in that: the fan louver further comprises a rear panel, the rear panel is fixed on the front panel, and the front panel and the rear panel can be wound around a The rotating shaft rotates relative to the fixing frame, and the rotating shaft is substantially perpendicular to the pivoting axis. 9. The fan shutter according to claim 8, wherein the front panel is provided with a first panel body and a first flange extending from the first panel body, and the rear panel includes a second panel body and the second flange extending from the second plate body, the first plate body is roughly parallel to the second plate body, the fixing plate is against the first plate body, and the positioning plate is against The second board, and the first board and the second board are located between the fixing board and the positioning board. 10. The fan louver according to claim 9, characterized in that: the front plate includes a mounting ring extending from the first plate body, the front plate is opened with a mounting opening, and the mounting ring extends from the Edges of the installation opening extend, the fixing portion and the fixing ring are located between the installation rings, and the balls are located between the fixing portion and the installation ring.

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