CN201335029Y

CN201335029Y - Fan with waterproof structure

Info

Publication number: CN201335029Y
Application number: CNU2009201049838U
Authority: CN
Inventors: 邢一强; 骆冠荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-13
Filing date: 2009-01-13
Publication date: 2009-10-28
Anticipated expiration: 2019-01-13

Abstract

The utility model discloses a fan provided with a waterproof structure, which comprises a stator, the waterproof structure, an impeller and a rotor. The waterproof structure protrudes to coat the stator; a central hole is formed on the waterproof structure; the impeller includes a hub, at least two fan blades extending from the hub and a rotating shaft connected with the inner edge surface of the hub; the rotating shaft passes through the central hole; the rotor is connected with the hub; and the rotor is arranged correspondingly to the stator. Due to the waterproof structure coating the stator, the fan can be used in water or damper environments, so that the practicability of the fan is improved.

Description

Fan with waterproof construction

Technical field

The utility model refers to a kind of fan with waterproof construction especially relevant for a kind of fan.

Background technique

The traditional heat-dissipating fan generally includes impeller assembly, rotor and circuit board, but the rotor relative stator in the impeller assembly is done rotation with the generation air-flow, and stator is electrically connected with circuit board; This radiation fan is disposed at the inner and any waterproof effect of tool not of electronic equipment usually.

Yet at the electronic equipment of specific use, as devices such as military computers, its employed environment can make electronic equipment Long contact time aqueous vapor or dirty usually, and known radiation fan obviously can't use in such environment; Therefore, just develop and another kind of radiation fan, it is at stator and the outside waterproof construction that coats of circuit board, and this waterproof construction generally includes can organize housing and the lid that unloads mutually, stator and circuit board then are placed in the housing, lid again this housing of involution to reach waterproof effect.

Yet, this radiation fan existing problems still on reality is used that can waterproof, just can make waterproof construction reach the effect of waterproof owing to must press from both sides the packing ring of pulling between housing and the lid, but under long-time the use, packing ring is then aging easily to follow the string, and make infiltration easily between housing and the lid, so, waterproof construction then can't reach the effect of waterproof; In addition, if regularly replace new packing ring, but it is quite time-consuming to organize the process of unloading radiation fan so, comparatively trouble.

The model utility content

In view of this, the fan with waterproof construction that provides a kind of waterproofing effect better, easy to use is provided main purpose of the present utility model.

In order to achieve the above object, the utility model provides a kind of fan with waterproof construction, comprises stator, waterproof construction, impeller and rotor, and this waterproof construction penetrates and is coated on this stator outside, and this waterproof construction is formed with center hole; This impeller comprises wheel hub, two of extending of this wheel hub or two above flabellums and the rotating shaft that is connected in this wheel hub inner edge surface certainly, and this rotating shaft is arranged in this center hole; This rotor is connected in this wheel hub, and this rotor is corresponding to this stator arrangement.

As can be seen from the above technical solutions, the utility model penetrates the waterproof construction that is coated on the stator outside by one isolated with stator and water, make described fan can be in water or comparatively moist environment under use, so the utility model can overcome the traditional heat-dissipating fan and meets water and the coil of stator interior can't normally be used and the shortcoming of circuit board short circuit; In addition, by fill in lubricant oil in center hole can reduce the impeller rotation time frictional force and isolate extraneous aqueous vapor, in case the spline axle gets rusty and make the impeller can't normal operation, and then improve the practicability of described fan.

Description of drawings

Fig. 1 is the stereogram of the utility model stator;

Fig. 2 is the side view of the utility model stator;

Fig. 3 is coated on the side view of stator for the utility model waterproof construction;

Fig. 4 is coated on the stereogram of stator for the utility model waterproof construction;

Fig. 5 is the rotating shaft of the utility model impeller and the three-dimensional exploded view of bearing;

Fig. 6 is the three-dimensional exploded view that the utlity model has the fan of waterproof construction;

Fig. 7 is the fan stereogram that the utlity model has waterproof construction;

Fig. 8 is the sectional view along Fig. 7 section line 8-8;

Fig. 9 is the side view that the fan that the utlity model has waterproof construction is applied to electronic equipment;

Figure 10 is the profile that the utlity model has another embodiment of fan of waterproof construction;

Figure 11 is the side exploded view that the utlity model has another embodiment of fan of waterproof construction;

Figure 12 is the stereogram that the utlity model has the another embodiment of fan of waterproof construction.

Description of reference numerals

1 fan, 10 stators

11 frameworks, 111 pins

12 coils, 20 waterproof constructions

21 center holes, 211 serrated slot

30 impellers, 31 wheel hubs

33 rotating shafts of 32 flabellums

331 draw-in grooves, 34 bearings

35 clasps, 40 rotors

50 lubricant oil, 61 first packing rings

62 second packing rings 63 the 3rd packing ring

70 circuit boards, 90 electronic equipments

91 housings, 911 intake grills

912 exhaust outlets, 92 heating elements

93 heat-transfer devices, 931 heat conduction boards

932 heat pipes, 933 radiating fin

The b putting chamber

Embodiment

Relevant detailed description of the present utility model and technology contents, conjunction with figs. is described as follows, however appended accompanying drawing only provides reference and explanation usefulness, is not to be used for limiting the utility model.

The utility model provides a kind of fan with waterproof construction, comprises stator 10, waterproof construction 20, impeller 30 and rotor 40, wherein:

See also Fig. 1 and Fig. 2, be respectively the stereogram of the utility model stator and the side view of the utility model stator, two or more coils 12 that stator 10 comprises framework 11 and is wound in this framework 11, these coil 12 circular array; In addition, framework 11 belows are extended with two or more pins 111.

See also Fig. 3 and Fig. 4, be respectively the utility model waterproof construction and be coated on the side view of stator and the stereogram that the utility model waterproof construction is coated on stator, waterproof construction 20 one penetrate and are coated on stator 10 outsides, and waterproof construction 20 end faces are formed with center hole 21; In addition, pin 111 passes the below of waterproof construction 20.

See also Fig. 5, be the rotating shaft of the utility model impeller and the three-dimensional exploded view of bearing, the rotating shaft 33 that impeller 30 comprises wheel hub 31, extend from wheel hub 31 sides two or two above flabellums 32 and is connected in wheel hub 31 inner edge surfaces, rotating shaft 33 is arranged in center hole 21; Rotating shaft 33 offers draw-in groove 331, and impeller 30 also comprises bearing 34 and clasp 35, and bearing 34 is fixed in the center hole 21 and for rotating shaft 33 and articulates, and 35 of clasps are sticked in draw-in groove 331; Rotor 40 is connected in wheel hub 31, and rotor 40 is corresponding to stator 10 configurations.

See also Fig. 6 to Fig. 8, be respectively the three-dimensional exploded view, stereogram of the fan that the utlity model has waterproof construction and along the sectional view of Fig. 7 section line 8-8, it is outside and corresponding mutually with stator 10 that wheel hub 31 is disposed at

waterproof construction

20, and 40 of rotors are permanent magnet and interact with coil 12.

Further specify, be socketed on the bearing 34 of rotating shaft 33 and the mutual butt of circumferential surface of center hole 21; In addition, as seen from Figure 8, rotating shaft 33 offers two draw-in grooves 331, and two clasps 35 are connected in respectively in the draw-in groove 331 so that bearing 34 is fixing, make rotating shaft 33 not produce slippages with bearing 34.

The fan 1 that the utlity model has waterproof construction also comprises circuit board 70, and circuit board 70 is disposed at waterproof construction 20 1 sides, and circuit board 70 is electrically connected with pin 111.

See also Fig. 9, be applied to the side view of electronic equipment for the fan that the utlity model has waterproof construction, the fan 1 that the utlity model has waterproof construction 20 can be applicable in the electronic equipment 90, electronic equipment 90 comprises housing 91, heating element 92 and heat-transfer device 93, and housing 91 is formed with and is communicated with outside putting chamber b, intake grill 911 and exhaust outlet 912; And heating element 92 is arranged at housing 91 inside, and heat-transfer device 93 comprises heat conduction board 931, two or more heat pipes 932 and two or more radiating fin 933.

Heat conduction board 931 amplexiforms on heating element 92, and heat pipe 932 1 ends are connected to heat conduction board 931, and the other end of heat pipe 932 is equipped with two or more radiating fin 933, and heat pipe 932 the other ends and radiating fin 933 are positioned at exhaust outlet 912 places; And fan 1 is located in the putting chamber b, and waterproof construction 20 and housing 91 butts also press from both sides useful the 3rd packing ring 63 with waterproof of pulling between waterproof construction 20 and housing 91.

And flabellum 32 is positioned at intake grill 911 places, and when fan 1 running, the fluid that flabellum 32 can will be positioned at electronic equipment 90 outsides is sucked by intake grill 911, and fluid is flowed through behind heat pipe 932 and the radiating fin 933, can absorb used heat and flows out from exhaust outlet 912; The 3rd packing ring 63 can prevent that housing 91 and waterproof construction 20 junction points from producing the phenomenon of infiltration, and waterproof construction 20 can prevent that stator 10 and circuit board 70 from making moist and damage; In addition, fan 1 so configuration also has an advantage, and promptly the fluid that sucks of fan 1 is the lower fluid of external temperature, but not the higher fluid of electronic equipment 90 inside temperatures, so can improve the heat dissipation of this electronic equipment 90.

Please refer to Figure 10 and Figure 11, the side exploded view that is respectively another embodiment's of fan who the utlity model has waterproof construction profile and the utlity model has another embodiment of fan of waterproof construction, in the present embodiment, fan 1 also comprises lubricant oil 50, first packing ring 61 and second packing ring 62, first,

second packing ring

61,62 all offers and center hole 21 mutual corresponding perforates, and 50 of lubricant oil are filled in center hole 21; First packing ring 61 amplexiforms in waterproof construction 20, and second packing ring 62 splices on first packing ring 61; The effect of first packing ring 61 is that sealing lubricating oil 50 makes it not produce the phenomenon that leaks, and 62 on second packing ring is in order to fixing first packing ring 61, guarantees that first packing ring 61 does not produce to get loose; In addition, center hole 21 inner edge surfaces are provided with serrated slot 211, can be coated with the bonding material (not shown) between serrated slot 211 and bearing 34, so that bearing 34 can more firmly be arranged in the center hole 21.

In addition, in the present embodiment, wheel hub 31 can be organized with rotating shaft 33 and unload, rotating shaft 33 is fixing with wheel hub 31 by clasp 35, so, and when cleaning wheel hub 31 inside, only need wheel hub 31 is unloaded, rotating shaft 33 and each assembly that is positioned at center hole 21 inside then need not unload, and be more convenient in the use.

See also Figure 12, be the another embodiment's of fan that the utlity model has waterproof construction stereogram, in the present embodiment, flabellum 32 extends from the end face of wheel hub 31.

The above only is preferred embodiment of the present utility model, just is used for description and interpretation the utility model, is not to be used to limit protection domain of the present utility model.Within spirit of the present utility model and claim protection domain, any modification that the utility model is done, be equal to replacement, all fall into protection domain of the present utility model.

Claims

1, a kind of fan with waterproof construction is characterized in that, comprising:

Stator;

Waterproof construction penetrates and is coated on this stator outside, and this waterproof construction is formed with center hole;

Impeller comprises wheel hub, two of extending of this wheel hub or two above flabellums and the rotating shaft that is connected in this wheel hub inner edge surface certainly, and this rotating shaft is arranged in this center hole; And

Rotor is connected in this wheel hub, and this rotor is corresponding to this stator arrangement.

2, the fan with waterproof construction according to claim 1 is characterized in that, described impeller also comprises the bearing that articulates for described rotating shaft, and this bearing fixing is in described center hole.

3, the fan with waterproof construction according to claim 2 is characterized in that, described center hole inner edge surface is provided with serrated slot.

4, the fan with waterproof construction according to claim 3 is characterized in that, is coated with bonding material between described serrated slot and the described bearing.

5, the fan with waterproof construction according to claim 1, it is characterized in that, described fan also comprises packing ring and lubricant oil, this packing ring is attached at described waterproof construction and has and the corresponding perforate mutually of described center hole, and this lubricant oil is filled in described center hole and by this packing ring and sealed.

6, the fan with waterproof construction according to claim 1, it is characterized in that, described fan also comprises circuit board, this circuit board arrangement is in described waterproof construction one side, described stator comprises framework, this framework is extended with the pin that is piercing in described waterproof construction, and this circuit board is electrically connected with this pin.

7, the fan with waterproof construction according to claim 6, it is characterized in that, described stator also comprises two or more coils that are wound in described framework and circular array, and described rotor is a magnet of being located at described wheel hub inner edge surface, and this magnet and described coil interact.

8, the fan with waterproof construction according to claim 1 is characterized in that, described flabellum extends from described wheel hub side.

9, the fan with waterproof construction according to claim 1 is characterized in that, described flabellum extends from described wheel hub end face.