CN100436830C

CN100436830C - Fan

Info

Publication number: CN100436830C
Application number: CNB2005100374621A
Authority: CN
Inventors: 林宥成; 徐宏博
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-09-21
Filing date: 2005-09-21
Publication date: 2008-11-26
Anticipated expiration: 2025-09-21
Also published as: CN1936338A

Abstract

This invention relates to a fan including a fan frame, a CB and a rotor, in which, the frame includes a cylinder frame and a base plate connected to the frame with a central post extended on the center, the CB passes through said post and is set on the base plate, a rotor is placed in the frame including a hollow shell and several fan blades set at outside of the shell, a projection part is set on the CB with a bevel, a diode lamp is mounted on the bevel, the salient direction of which tilts to the CB so that it can radiate on the fan in a large sphere.

Description

Fan

[technical field]

The present invention relates to a kind of fan, be meant a kind of fan that diode lights is housed especially.

[background technique]

Along with developing rapidly of electronic industry, increase substantially as the arithmetic speed of electronic component in the computer, the heat of its generation also increases severely thereupon, and how the heat with electronic component distributes, and to guarantee its normal operation, is the essential problem that solves of dealer always.As everyone knows, the central processing unit (CPU) that is installed on the host board is the core of computer system, and when computer moved, central processing unit (CPU) produced heat.Too much heat can cause central processing unit (CPU) normally to move.For effectively distributing the heat that central processing unit (CPU) produces in running, install a sink thereon additional usually so that the heat of its generation is distributed.This sink mainly is made up of a fan and radiator, wherein fan is locked on the radiator, radiator places on the central processing unit (CPU), thereby the heat that produces during central processing unit (CPU) work, from heat sink radiates, fan running produces strong wind to radiator on the other hand on the one hand, to continue taking away heat from radiator, avoid central processing unit (CPU) overheated and reduce working efficiency, even damage.

Traditional computer fan is enclosed by an opaque housing fully, can't see the existence of fan from the housing outside at all.Therefore, be not difficult to find out that traditional computer is all only paid attention to the pursuit of practicability.

Recently, the transparent panel of the popular various styles of computer casing side, gorgeous neon lamp transmits from the housing the inside, and is bright and glittering.This prismy lighting effects all adopt light emitting diode (LED) to realize.LED basic structure is the semiconductor module of an electron luminescence, be encapsulated in the epoxy resin, by stitch as positive and negative electrode and play a supporting role.LED has that volume is little, low in energy consumption, response is fast, usefulness is high, color is many, radiationless and characteristics that the life-span is grown.LED can be located on the computer componentses such as fan, power supply or video card.

Announce the 2641353Y patent as the C China, it has disclosed a kind of fan of the LED of being equipped with lamp.This fan includes a square frame, and the housing outside is offered porose, is fitted with versicolor LED lamp in the hole.

Yet the fan of this kind structure, because the LED lamp is set on housing, need perforate on housing, complex procedures but also increased the complexity of fan mould not only.In addition, the LED lamp is arranged at the housing side, connect power supply after, light is outwards dispersed, it is less to shine epitrochanterian area.

[summary of the invention]

In view of this, be necessary to provide a kind of and can reduce the fan that has diode lights that the die sinking operation can increase irradiated area again.

A kind of fan comprises fan frame, a circuit board and a rotor; The fan frame comprises that a cylindrical shape housing and is connected in the base plate of described housing, and the extension of base plate central authorities is provided with a newel; Circuit board wears newel and places on the described base plate; Rotor is arranged in described fan frame, some flabellums that it comprises a hollow casing and is located at hull outside; At least one bump is set on the described circuit board, and this bump is provided with an inclined-plane, and a diode lights is installed on this inclined-plane, and this diode lights projected direction tilts with respect to circuit board.

Compared to prior art, the bump on tool inclined-plane is set on the circuit board of described fan, diode lights is assembled on the inclined-plane of this bump, diode lights projected direction and circuit board tilt, thereby make the diode lights large size according to being located on the fan propeller, not only avoided in the prior art on the fan frame complicated procedures of forming of perforate but also can increase the area of irradiation fan, made fan entire body light.

The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.

[description of drawings]

Fig. 1 is a fan three-dimensional exploded view of the present invention.

Fig. 2 is the inversion figure of Fig. 1.

Fig. 3 is the ssembly drawing of Fig. 2.

[embodiment]

See also Fig. 1, Fig. 1 is a fan 100 of the embodiment of the invention, and this fan 100 comprises fan frame 10, one circuit boards 20 and a rotor 30, and wherein, circuit board 20 and rotor 30 all place fan frame 10.

See also Fig. 2 simultaneously, fan frame 10 has a housing 12, this housing 12 is cylindric, it has two relative opening ends, wherein an opening end is interval with three ribs 122, wherein the one side of a rib 122 is provided with one in order to accommodating the containing groove 120 of electric wire (not shown), and a side of containing groove 120 is provided with a fixture block 126 that is used for the holding electric wire.These housing 12 another opening ends are interval with buckle element 124, are used for this fan 100 is fastened on radiator (not shown), are coated with phosphor on this housing 12.This fan frame 10 further comprises a discoid base plate 14, described rib 122 connects this base plate 14, this base plate 14 is provided with wall 140, spaced apart three short slots 142 that are provided with on this wall 140, these base plate 14 central position are provided with a newel 144 towards the extension of circuit board direction, these base plate 14 adjacent wall surface 140 positions are provided with a breach 146, pass with supply lines.

Circuit board 20 is disc, its central authorities are provided with a circular hole 200, be used for wearing for the newel 144 of fan frame 10, circular hole 200 peripheries are provided with stator (not shown), circuit board 20 periphery coplane ground outwards are interval with three extension parts 202, this extension part 202 is corresponding with the short slot 142 of fan frame 10, convex with a bump 402 on each extension part 202, this bump 402 has an inclined-plane, LED lamp 40 is installed on this inclined-plane, the projected direction of LED lamp 40 and circuit board 20 tilt, and the projected direction of each LED lamp 40 is identical, this LED lamp 40 can directly support and be located on the lamp socket 42, and this LED lamp 40 just is being provided with tool, negative conducting end, and it is just, negative conducting end is connected with circuit board 20 by lamp socket 42 and bump 402.This bump 402 is provided with the conductive connecting pin (not shown) that can be connected on the circuit board 20, and when making the positive and negative conducting end of LED lamp 40 be connected to lamp socket 42 and bump 402, the conductive connecting pin and 20 of the circuit boards that can see through this bump 402 be the electric connection state.This bump 402 is provided with locating stud 206 in the end towards

circuit board

20, and 20 pairs of circuit boards should be provided with positioning hole 26 by locating stud 206.

Rotor 30 has a hollow casing 32, housing 32 outsides form some flabellums 38, and these housing 32 inside are provided with permanent magnet 34, and the rotating shaft 36 that can be articulated in stator and newel 144, this rotor 30 is arranged in the circular housing 12 of fan frame 10, and its housing 32 is positioned at the stator outside.

See also Fig. 3 simultaneously, during assembling, at first LED lamp 40 is installed on the lamp socket 42; The lamp socket 42 that secondly will have a LED lamp 40 vertically is installed on the inclined-plane of bump 402 of circuit board 20; Then utilize on the bump 402 locating stud 206 that is provided with to insert in the positioning hole 26 of circuit boards 20 and be welded on the circuit board 20; Make the circular hole 200 of circuit board 20 pass the newel 144 of fanning frame 10 then, circuit board 20 is placed on the base plate 14 of fan frame 10, the extension part 202 of circuit board 20 is placed in the outside of fan frame 10 short slots 142 simultaneously, makes the LED lamp be positioned at the outside of rotor 30 housings 32; Pass through at last the rotating shaft 36 of rotor 30 is inserted in the newel 144 of fan frames 10, thereby rotor 30 is placed in the housing 12 of fan frame 10.

During use, fan 100 of the present invention can place the inner predetermined heat radiation position of transparent computer host housing, central processing unit (CPU) top position etc. for example, connect power supply, the permanent magnet 34 of stator and rotor 30 inside produces the magnetic mutual repulsion effects, and then drives rotor 30 and start is rotated in inner rotating shaft 36 on stator, so as to producing the needed air-flow of heat radiation, to reach the effect of cooling heat dissipation, light is respectively from fanning frame 10 and rotor 30 projections and going out.

The present invention installs LED lamp 40 on the circuit board 20 of fan 100, perforate on the frame 10 need do not fanned, therefore avoided the complexity of die sinking, because LED lamp 40 places rotor 30 outsides, rotor 30 can shine on the whole rotor 30 when rotating, thereby increased irradiated area, in addition, the light that shines on the rotor 30 can reflex on the fan housing 12, hits fluorescent coating on the bright housing 12, make fan 100 entire body lights, bright and glittering.

Claims

1. a fan comprises fan frame, a circuit board and a rotor; The fan frame comprises that a cylindrical shape housing and is connected in the base plate of described housing, and the extension of base plate central authorities is provided with a newel; Circuit board wears newel and places on the described base plate; Rotor is arranged in described fan frame, some flabellums that it comprises a hollow casing and is located at hull outside, it is characterized in that: at least one bump is set on the described circuit board, this bump is provided with an inclined-plane, one diode lights is installed on this inclined-plane, and this diode lights projected direction tilts with respect to circuit board.

2. fan as claimed in claim 1 is characterized in that: described diode lights places the outside of rotor hollow casing.

3. fan as claimed in claim 1 is characterized in that: described circuit board coplane is extraterrestrial to be arranged at intervals with a plurality of extension parts, and described bump is located on this extension part.

4. fan as claimed in claim 1 is characterized in that: extraterrestrial three extension parts that are arranged at intervals with of described circuit board coplane are equipped with above-mentioned diode lights on each extension part.

5. fan as claimed in claim 3 is characterized in that: the base plate of described fan frame is provided with a cylindrical shape wall, offers on this wall and the corresponding short slot of described extension part, and extension part is placed in this short slot outside.

6. as claim 3 or 4 described fans, it is characterized in that: described diode lights all is based in above-mentioned bump along same direction.

7. fan as claimed in claim 1 is characterized in that: described bump is provided with a lamp socket, forms above-mentioned inclined-plane on the lamp socket, and described diode lights vertically is installed on this inclined-plane.

8. fan as claimed in claim 1 is characterized in that: described bump is provided with the locating stud that can insert and be welded on the circuit board in the side towards circuit board.

9. fan as claimed in claim 1, it is characterized in that: the housing of described fan frame is provided with two openings, wherein an opening is interval with the rib that connects described fan frame bottom plate, and another opening is interval with and is used for fan is fastened on buckle element on the radiator.

10. fan as claimed in claim 1 is characterized in that: be coated with phosphor on the described fan frame.