阅读说明：本技术 悬浮风扇 (Suspension fan ) 是由 陈立娟 邱国光 李丽 刘玲 周利江 陶红敏 梁亚媛 于 2019-10-22 设计创作，主要内容包括：本发明公开了悬浮风扇,包括电磁定子、永磁转子和扇叶,电磁定子的中间位置下方固定安装有底板,永磁转子的内圈间隙配合安装在电磁定子的外围,扇叶包括圆柱体和圆形阵列成型在圆柱体外围的叶片,圆柱体的下方成型有圆槽,圆槽与永磁转子的外圈相互间隙配合,电磁定子的中间处成型有通孔,圆槽的圆心处固定安装有转轴,转轴与通孔相互间隙配合,圆槽的外围下方成型有第一圆形定位边,底板的上方成型有与第一圆形定位边相互间隙配合的第二圆形定位边,第二圆形定位边的内沿设有防尘圈,防尘圈固定安装在底板的上方,底板上镶嵌安装有PCB电路板,PCB电路板与电磁定子相互电连接；防止灰尘在悬浮风扇内堆积,延长悬浮风扇的寿命,清洗方便快捷。(The invention discloses a suspension fan, which comprises an electromagnetic stator, the electromagnetic stator comprises a permanent magnet rotor and fan blades, wherein a bottom plate is fixedly arranged below the middle position of the electromagnetic stator, the inner ring of the permanent magnet rotor is arranged on the periphery of the electromagnetic stator in a clearance fit manner, each fan blade comprises a cylinder and blades formed on the periphery of the cylinder in a circular array manner, a circular groove is formed below the cylinder and is in clearance fit with the outer ring of the permanent magnet rotor, a through hole is formed in the middle of the electromagnetic stator, a rotating shaft is fixedly arranged at the center of the circular groove and is in clearance fit with the through hole, a first circular positioning edge is formed below the periphery of the circular groove, a second circular positioning edge in clearance fit with the first circular positioning edge is formed above the bottom plate, a dust ring is arranged on the inner edge of the second circular positioning edge and is fixedly arranged above the bottom plate, a PCB is embedded on the bottom plate, and the PCB is electrically connected with the electromagnetic; prevent that the dust from piling up in the suspension fan, prolong the life-span of suspension fan, wash convenient and fast.)

1. Suspension fan, including the electromagnetism stator, permanent magnet rotor and flabellum, the intermediate position below fixed mounting of electromagnetism stator has the bottom plate, permanent magnet rotor is the drum shape, the periphery at the electromagnetism stator is installed to permanent magnet rotor's inner circle clearance fit, the flabellum includes cylinder and the shaping of circular array at cylinder outlying blade, the shaping of the intermediate position below of cylinder has the circular slot, the mutual clearance fit of outer lane of circular slot and permanent magnet rotor, permanent magnet rotor passes through glue fixed mounting in the circular slot, the shaping of the centre of a circle department of electromagnetism stator has the through-hole, the fixed mounting of the centre of a circle department of circular slot has the pivot, pivot and the mutual clearance fit of through-hole, its characterized in: the peripheral below shaping of circular slot has first circular location limit, and the top shaping of bottom plate has the circular location limit of second with the mutual clearance fit of first circular location limit, and the interior edge on the circular location limit of second is equipped with the dust ring, and the dust ring separates the setting with the circular location limit of second each other, and dust ring fixed mounting is in the top of bottom plate, inlays on the bottom plate and installs the PCB circuit board, and the PCB circuit board is fixed between bottom plate and electromagnetic stator, and the PCB circuit board is connected with electromagnetic stator electricity each other.

2. The levitation fan of claim 1, wherein: the lower shaping on first circular location limit has the constant head tank, and the last border clearance fit on the circular location limit of second is inserted in the constant head tank, and the periphery of dust ring separates the setting with the interior border mutual clearance on first circular location limit.

3. The levitation fan of claim 1, wherein: a bearing countersunk hole is formed above the periphery of a through hole of the electromagnetic stator, a bearing is arranged in the bearing countersunk hole in a clearance fit manner, a bearing boss is formed at the joint of the circular groove and the rotating shaft, the periphery of the bearing boss is in clearance fit with the inner ring of the bearing, and the rotating shaft penetrates through the bearing boss to be in clearance fit with the inner ring of the bearing.

4. The levitation fan of claim 1, wherein: the PCB circuit board is in a circular shape, and the periphery of the PCB circuit board is in clearance fit with the inner ring of the dustproof ring.

5. The levitation fan of claim 1, wherein: the peripheral shaping of bottom plate has the installation locating rack, and the shaping has the countersunk screw hole that a plurality of equidistance set up on the installation locating rack, and countersunk screw hole sets up down, and the screw passes countersunk screw hole fixed mounting has heat radiation fins in the below of bottom plate, and the peripheral department fixed mounting in below of heat radiation fins has "L" shape mount that the several equidistance was arranged, "L" shape mount goes up the shaping and has the screw through-hole.

Technical Field

The invention relates to the field of computer heat dissipation, in particular to a suspension fan.

Background

The magnetic suspension fan is similar to a magnetic suspension train, and the magnetic suspension fan keeps a certain interval between the train and the track by utilizing electromagnetic force, so that friction is reduced, vibration caused by mechanical friction is avoided, mechanical abrasion is fundamentally avoided, and vibration and noise are reduced. The magnetic suspension fan utilizes the principle to keep the rotor and the stator from contacting, so that the fan adopting the magnetic suspension technology has the advantages of low noise, small vibration and long service life.

Computer radiator fan on the market at present all adopts the suspension fan mostly, but, computer radiator suspension fan among the prior art is that rotor and stator separation set up, can lead to flabellum moving to float because of blowing of flabellum in the operation way, can be very easily when floating in the suspension fan laying dust, influence the life of suspension fan.

Disclosure of Invention

The invention provides a technical scheme capable of solving the problems in order to overcome the defects.

The suspension fan comprises an electromagnetic stator, a permanent magnet rotor and fan blades, wherein a bottom plate is fixedly arranged below the middle position of the electromagnetic stator, the permanent magnet rotor is in a cylindrical shape, the inner ring of the permanent magnet rotor is arranged on the periphery of the electromagnetic stator in a clearance fit mode, the fan blades comprise a cylinder and blades formed on the periphery of the cylinder in a circular array mode, a circular groove is formed below the middle position of the cylinder and is in clearance fit with the outer ring of the permanent magnet rotor, the permanent magnet rotor is fixedly arranged in the circular groove through glue, a through hole is formed in the middle of the electromagnetic stator, a rotating shaft is fixedly arranged at the center of the circular groove and is in clearance fit with the through hole, a first circular positioning edge is formed below the periphery of the circular groove, a second circular positioning edge in clearance fit with the first circular positioning edge is formed above the bottom plate, a dust ring is arranged on the inner edge of the second circular positioning edge, and is arranged at a distance from the, the dustproof ring is fixedly arranged above the bottom plate, the PCB is embedded on the bottom plate and fixed between the bottom plate and the electromagnetic stator, and the PCB is electrically connected with the electromagnetic stator.

As a further scheme of the invention: the lower shaping on first circular location limit has the constant head tank, and the last border clearance fit on the circular location limit of second is inserted in the constant head tank, and the periphery of dust ring separates the setting with the interior border mutual clearance on first circular location limit.

As a further scheme of the invention: a bearing countersunk hole is formed above the periphery of a through hole of the electromagnetic stator, a bearing is arranged in the bearing countersunk hole in a clearance fit manner, a bearing boss is formed at the joint of the circular groove and the rotating shaft, the periphery of the bearing boss is in clearance fit with the inner ring of the bearing, and the rotating shaft penetrates through the bearing boss to be in clearance fit with the inner ring of the bearing.

As a further scheme of the invention: the PCB circuit board is in a circular shape, and the periphery of the PCB circuit board is in clearance fit with the inner ring of the dustproof ring.

As a further scheme of the invention: the peripheral shaping of bottom plate has the installation locating rack, and the shaping has the countersunk screw hole that a plurality of equidistance set up on the installation locating rack, and countersunk screw hole sets up down, and the screw passes countersunk screw hole fixed mounting has heat radiation fins in the below of bottom plate, and the peripheral department fixed mounting in below of heat radiation fins has "L" shape mount that the several equidistance was arranged, "L" shape mount goes up the shaping and has the screw through-hole.

Compared with the prior art, the invention has the beneficial effects that: effectively prevent that the dust from piling up in the suspension fan, prolong the life of suspension fan, wash convenient and fast.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic view of a fan blade according to the present invention.

Fig. 3 is a schematic view of the mounting structure of the electromagnetic stator of the present invention.

Shown in the figure: 1. an electromagnetic stator; 2. a permanent magnet rotor; 3. a fan blade; 4. a base plate; 3-1, cylindrical; 3-2, blades; 5. a circular groove; 6. a through hole; 7. a rotating shaft; 8. a first circular positioning edge; 9. a second circular positioning edge; 10. a dust ring; 11. a PCB circuit board; 12. positioning a groove; 13. a bearing counterbore; 14. a bearing; 15. a bearing boss; 16. mounting a positioning frame; 17. countersunk head screw holes; 18. heat dissipation fins; 19. an L-shaped fixing frame; 20. and a screw through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a technical scheme capable of solving the problems in order to overcome the defects.

Referring to fig. 1-3, the suspension fan includes an electromagnetic stator 1, a permanent magnet rotor 2 and a fan blade 3, wherein a bottom plate 4 is fixedly installed below a middle position of the electromagnetic stator 1, the permanent magnet rotor 2 is in a cylindrical shape, an inner ring of the permanent magnet rotor 2 is installed on the periphery of the electromagnetic stator 1 in a clearance fit manner, the fan blade 3 includes a cylinder 3-1 and blades 3-2 formed on the periphery of the cylinder 3-1 in a circular array manner, a circular groove 5 is formed below the middle position of the cylinder 3-1, the circular groove 5 and an outer ring of the permanent magnet rotor 2 are in a clearance fit manner, the permanent magnet rotor 2 is fixedly installed in the circular groove 5 by glue, a through hole 6 is formed in the middle of the electromagnetic stator 1, a rotating shaft 7 is fixedly installed at a center of the circular groove 5, the rotating shaft 7 and the through hole 6 are in a clearance fit manner, a first circular positioning edge 8 is formed below the periphery of the circular groove 5, a second circular positioning edge 9 is formed above the, the interior edge of the circular location limit 9 of second is equipped with dust ring 10, and dust ring 10 separates the setting each other with the circular location limit 9 of second, and dust ring 10 fixed mounting is in the top of bottom plate 4, inlays on bottom plate 4 and installs PCB circuit board 11, and PCB circuit board 11 is fixed between bottom plate 4 and electromagnetic stator 1, and PCB circuit board 11 is connected with electromagnetic stator 1 electricity each other.

As a further scheme of the invention: a positioning groove 12 is formed below the first circular positioning edge 8, the upper edge of the second circular positioning edge 9 is inserted into the positioning groove 12 in a clearance fit manner, and the periphery of the dust ring 10 and the inner edge of the first circular positioning edge 8 are arranged in a mutually clearance-separated manner; the dustproof effect is better.

As a further scheme of the invention: a bearing counter bore 13 is formed above the periphery of the through hole of the electromagnetic stator 1, a bearing 14 is arranged in the bearing counter bore 13 in a clearance fit manner, a bearing boss 15 is formed at the joint of the circular groove 5 and the rotating shaft 7, the periphery of the bearing boss 15 is in clearance fit with the inner ring of the bearing 14, and the rotating shaft 7 penetrates through the bearing boss 15 to be in clearance fit with the inner ring of the bearing 14; the during operation is lubricated more, avoids producing the collision between electromagnetic stator 1 and the permanent magnet rotor 2, increases life.

As a further scheme of the invention: the PCB 11 is in a circular shape, and the periphery of the PCB 11 is in clearance fit with the inner ring of the dust ring 10; so that the PCB 11 is dustproof and the service life is prolonged.

As a further scheme of the invention: a mounting positioning frame 16 is formed on the periphery of the bottom plate 4, a plurality of countersunk screw holes 17 are formed in the mounting positioning frame 16 at equal intervals, the countersunk screw holes 17 are arranged downwards, a heat dissipation fin 18 is fixedly mounted below the bottom plate 4 by passing through the countersunk screw holes 17 through screws, a plurality of L-shaped fixing frames 19 which are arranged at equal intervals are fixedly mounted on the periphery below the heat dissipation fin 18, and screw through holes 20 are formed in the L-shaped fixing frames 19; the heat dissipation effect is better.

The working principle of the invention is as follows: when the dustproof fan works, the electromagnetic stator 1 drives the permanent magnet rotor 2 to rotate, the permanent magnet rotor 2 drives the fan blades 3 to rotate to blow air, and the upper edge of the second circular positioning edge 9 is arranged below the positioning groove 12 of the first circular positioning edge 8 in a clearance fit mode, so that dustproof is achieved; the periphery of the dustproof ring 10 is in clearance fit with the inner edge of the first round positioning edge 8, so that further dust prevention is realized; the periphery of the PCB 11 is in clearance fit with the inner ring of the dustproof ring 10, so that the effect of simultaneously preventing dust of the PCB 11 is realized, and the service life of the suspension fan is prolonged; during the washing, only need take out flabellum 3 and wash, electromagnetism stator 1 and PCB circuit board 11 all are in dustless state, convenient washing.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.