CN201437788U - Mini-type fan - Google Patents
Mini-type fan Download PDFInfo
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- CN201437788U CN201437788U CN200920154413XU CN200920154413U CN201437788U CN 201437788 U CN201437788 U CN 201437788U CN 200920154413X U CN200920154413X U CN 200920154413XU CN 200920154413 U CN200920154413 U CN 200920154413U CN 201437788 U CN201437788 U CN 201437788U
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Abstract
A mini-type fan comprises a frame seat, a baseplate and a fan blade, wherein, the frame seat is provided with a bearing part; the bearing part is provided with a shaft seat; the baseplate and the bearing part of the frame seat are combined with each other; the baseplate is provided with a surface layer; a coil assembly is arranged on one side of the surface layer and electrically connected with a driving circuit; the fan blade is provided with a central shaft and a permanent magnet; the central shaft is combined with the shaft seat of the frame seat; and the permanent magnet is opposite to the coil assembly. Therefore, the coil assembly can be integrated in the baseplate, so that the utility model ensures that non coil structural design is arranged between the fan blade and the surface layer of the baseplate, the integral axial height is reduced, and the complexity of the structure is simplified.
Description
Technical field
The utility model is about a kind of radiation fan, especially a kind of micro fan that reduces whole axial height and reduction volume.
Background technique
Existing radiation fan discloses " thin heat radiation machine " patent of invention No. 200610072272.8 as China.Please refer to shown in Fig. 1 and 2, should comprise a framework 81 by existing radiation fan 8, these framework 81 tops are provided with a cover plate 82, and this framework 81 has a containing space 811, have a pedestal 812 in this containing space 811, this pedestal 812 can be for a circuit board 83 and a coil 84 are set; In addition, this pedestal 812 is provided with plural at least positioning element 85, and these pedestal 812 central authorities are convexly equipped with a central siphon 813, this central siphon 813 can be incorporated into the containing space 811 of this framework 81 for a rotor 86, wherein these rotor 86 inboards have a magnet 861, make between this coil 84 and this magnet 861 and can produce the effect of magnetic interlinkage, so that drive this rotor 86 rotation starts.Whereby, this existing radiation fan 8 can be installed in various electronic equipment or electronic instrument, so that a predetermined heat dissipation effect to be provided.
Generally speaking, electronic product is generally towards directions such as microminiaturized trend research and development design now, yet, protruded the surface that is arranged at this circuit board 83 owing to should have the coil 84 of radiation fan 8 now, cause this coil 84 and the certain axial height of this circuit board 83 both still common formation, cause radiation fan 8 to be difficult to again the axially whole height of further reduction with this coil 84 and this circuit board 83; Therefore, also limited existing radiation fan 8 relatively and be designed to the feasibility of more compactization, and be difficult to be installed on hypomegetic electronic equipment or electronic instrument.
Another kind of existing radiation fan is announced " thin fan " patent of invention I293106 number as TaiWan, China.Please refer to shown in Fig. 3 and 4, this existing radiation fan 9 comprises a pedestal 91, an impeller 92, a slice shape magnet 93 and an axostylus axostyle 94.This pedestal 91 is provided with an axis hole 911 and a coil groups 912; This impeller 92 has several bending flabellums 921; This sheet shape magnet 93 is incorporated into this impeller 92 bottoms; One end of this axostylus axostyle 94 is inserted in the axis hole 911 of this pedestal 91, and the other end is in conjunction with this impeller 92.Whereby, this existing radiation fan 9 can be installed in various electronic equipment or electronic instrument equally, so that a predetermined heat dissipation effect to be provided.
Yet, the pedestal 91 of above-mentioned existing radiation fan 9 and the certain axial height of coil groups 912 both still common formation, cause this existing radiation fan 9 to be difficult to again the further whole axial height of reduction equally, and also relative restriction can be designed to the feasibility of more compactization, and be not suitable for hypomegetic electronic equipment or electronic instrument, so still have necessity of being improved.
The model utility content
The utility model provides a kind of micro fan, in order to solve the difficult problem towards microminiaturized direction design of aforementioned each existing radiation fan, is main model utility purpose.
A kind of micro fan comprises a skeleton frame, a substrate and a flabellum.This skeleton frame has a bearing part, and this bearing part is provided with an axle bed; This substrate junction is should the bearing part of skeleton frame, and this substrate has a relative top layer and a bottom, has a coil groups between this top layer and this bottom, and this coil groups is electrically connected one drive circuit; This flabellum is provided with a central shaft and a permanent magnet, and this central shaft is in conjunction with the axle bed of this skeleton frame, and this permanent magnet is relative with this coil groups.Whereby, this coil groups can be formed between the top layer and bottom of this substrate, makes this coil groups can be integrated in this substrate inside, reduces axial height and simplifies many effects such as structure complexity to reach.
Described substrate by several circuit layers be superimposed with each other the institute constitute, this coil groups comprises several coils of mutual electrical connection, respectively this coil is formed at the respectively surface of this circuit layer respectively.Whereby, get final product the more multi-thread circle of winding, and then reach the effect that improves rotating speed and moment of torsion.
Form a circuit between any two adjacent windings of a wherein circuit layer of described substrate and lay the district, this drive circuit is arranged at this circuit and lays the district.Whereby, to reach the effect that reduces structure and assembling complexity.
The top layer of described substrate and bottom can be an isolation layer; In addition, also can respectively be provided with an isolation layer between these several circuit layers.Whereby, can provide an insulation effect, can run well to guarantee this micro fan.
Described substrate is provided with a through hole that runs through this top layer and this bottom, the stretch through through hole of this substrate and in conjunction with the axle bed of this skeleton frame of the central shaft of this flabellum.Whereby, can reach the effect that promotes the assembling convenience.
The utility model also provides a kind of micro fan, comprises a skeleton frame, a substrate and a flabellum.This skeleton frame has a bearing part, and this bearing part is provided with an axle bed; This substrate junction is should the bearing part of skeleton frame, and this substrate has a top layer, and a side on this top layer has a coil groups, and this coil groups is between this top layer and this bearing part, and this coil groups is electrically connected one drive circuit; This flabellum is provided with a central shaft and a permanent magnet, and this central shaft is in conjunction with the axle bed of this skeleton frame, and this permanent magnet is relative with this coil groups.Whereby, can reach the effect that reduces axial height equally, and further reduce the complicated integral structure degree.
Useful technique effect of the present utility model is, be formed between the top layer of this substrate and the bottom or be formed between the top layer and this bearing part of this substrate by the coil groups of substrate, make this coil groups can be integrated in this substrate inside, reduce axial height and simplify many effects such as structure complexity to reach; Simultaneously the circuit of a certain circuit layer of design of drive circuit on substrate is laid the district, further to reach the effect that reduces structure and assembling complexity, and also can reduce the overall volume of this micro fan relatively, and then reach the function of being convenient to towards microminiaturized direction research and development design.
Description of drawings
Fig. 1: the three-dimensional exploded view of existing first kind of radiation fan.
Fig. 2: the assembled sectional view of existing first kind of radiation fan.
Fig. 3: the three-dimensional exploded view of existing second kind of radiation fan.
Fig. 4: the assembled sectional view of existing second kind of radiation fan.
Fig. 5: the three-dimensional exploded view of the utility model first embodiment's micro fan.
Fig. 6: the assembled sectional view of the utility model first embodiment's micro fan.
Fig. 7: the three-dimensional exploded view of the utility model second embodiment's micro fan.
Fig. 8: the three-dimensional exploded view of the substrate of the utility model second embodiment's micro fan.
The primary component symbol description:
10 skeleton frames, 11 containing spaces, 12 bearing parts, 13 axle beds, 14 intake grills
15 exhaust outlets, 20 substrates, 21 top layers, 22 bottoms, 23 coil groups
231 coils, 24 through holes, 30 flabellums, 31 impellers, 311 central shafts
32 permanent magnets, 40 substrate 40a, 40b, 40c, 40d circuit layer 41 top layers
42 bottoms, 43 coil groups, 431 coils, 44 through holes, 45 drive circuits
8 radiation fans, 81 frameworks, 811 containing spaces, 812 pedestals, 813 central siphons
82 cover plates, 83 circuit boards, 84 coils, 85 positioning elements, 86 rotors
861 magnet, 9 radiation fans, 91 pedestals, 911 axis holes, 912 coil groups
93 shape magnet 94 axostylus axostyles of 92 impellers, 921 flabellums
Embodiment
For above-mentioned and other purpose of the present utility model, feature and advantage can be become apparent, preferred embodiment of the present utility model cited below particularly, and conjunction with figs. are described in detail below:
Please refer to shown in Fig. 5 and 6, the utility model first embodiment's micro fan comprises a skeleton frame 10, a substrate 20 and a flabellum 30.Wherein:
This skeleton frame 10 has a containing space 11, is provided with a bearing part 12 in this containing space 11, and this bearing part 12 has an axle bed 13; , this skeleton frame 10 is provided with an air intake 14 and an exhaust outlet 15, and this air intake 14 and this exhaust outlet 15 all are communicated with this containing space 11.In addition, this skeleton frame 10 can be selected the fan frame of axial flow fan or the fan frame of blowing-type fan according to actual demand for use, embodiment as shown in the figure, the fan frame that to disclose this skeleton frame 10 be an axial flow fan.
This substrate 20 has a top layer 21, and this top layer 21 can be an isolation layer (not indicating) that is formed at these substrate 20 surfaces; Again, this substrate 20 is preferable to have a bottom 22 in addition, and this bottom 22 is relative with this top layer 21, and this bottom 22 also can be an isolation layer (indicating) that is formed at these substrate 20 surfaces, makes this substrate 20 have insulation function; And this substrate 20 is in conjunction with this skeleton frame 10, and the bottom 22 of this substrate 20 can amplexiform this bearing part 12.In addition, these substrate 20 preferable printed circuit board (PCB)s of selecting for use, so that utilize wire laying mode (layout) to form a coil groups 23 in a side on this top layer 21, this coil groups 23 includes several coils 231 of mutual electrical connection, and makes this coil groups 23 can be between this top layer 21 and this bearing part 12; Perhaps, when this substrate 20 had a bottom 22, this coil groups 23 was preferable between the top layer 21 and bottom 22 of this substrate 20.
Again, this coil groups 23 is electrically connected one drive circuit (not illustrating) in addition, and this drive circuit can directly be arranged on this substrate 20; Perhaps, this drive circuit also can be arranged at outside the containing space 11 of this skeleton frame 10, utilizes external mode to be electrically connected to this coil groups 23 again.In addition, this substrate 20 is provided with a through hole 24, and this through hole 24 can axially be through to this bottom 22 by this top layer 21, and each coil 231 preferable this through hole 24 periphery that are surrounded on of this coil groups 23; Whereby, when this substrate 20 is incorporated into the bearing part 12 of this skeleton frame 10, the axle bed 13 of this skeleton frame 10 this through hole 24 that can stretch through.
This flabellum 30 comprises an impeller 31 and a permanent magnet 32.This impeller 31 is provided with a central shaft 311, and this central shaft 311 stretches through behind the through hole 24 of this substrate 20, can combine with the axle bed 13 of this skeleton frame 10, so that this impeller 31 can transfer to moving in containing space 11 inward turnings of this skeleton frame 10; This permanent magnet 32 is in conjunction with this impeller 31, and this permanent magnet 32 is relative with this coil groups 23.
The utility model micro fan can be given this coil groups 23 by this drive circuitry when reality is used, make to produce the effect of magnetic interlinkage between this coil groups 23 and this permanent magnet 32, and then drive this flabellum 30 rotation starts; Whereby, the utility model micro fan can be introduced air-flow from this intake grill 14, and the impeller 31 that utilizes this flabellum 30 further drives these air communication and crosses exhaust outlet 15 rows of this skeleton frame 10 and be dissipated to extraneous space, so that when this micro fan is installed in various electronic equipment or electronic instrument, can reach a predetermined heat dissipation effect.
By the structure characteristic of preceding taking off, the main feature of the utility model micro fan consists predominantly of: utilize this coil groups 23 to be formed at the structural design of a side (preferable between this top layer 21 and this bottom 22) on the top layer 21 of this substrate 20, make this coil groups 23 can be integrated in this substrate 20 inside, and then guarantee that this coil groups 23 is unlikely to protrude the top layer 21 of this substrate 20; The more important thing is, can make no any loop construction design between the top layer 21 of this flabellum 30 and this substrate 20 whereby, and be integrated under the condition of these substrate 20 inside with wire laying mode in this coil groups 23, still be unlikely to excessively to increase the axial height of this substrate 20, also promptly can reduce the whole axial height of the utility model micro fan relatively, and with the advantage of simplifying structure complexity; Therefore, when this substrate 20 cooperates this skeleton frame 10 and this flabellum 30 to constitute the utility model micro fan, more can reduce the whole axial height of the utility model micro fan relatively, so that the utility model micro fan can be towards the direction research and development design of more compactization.
Please refer to shown in Figure 7ly, the utility model second embodiment's micro fan comprises a skeleton frame 10, a substrate 40 and a flabellum 30 equally, wherein the overall structure of this skeleton frame 10 and this flabellum 30 and identical the repeating no more of aforementioned first embodiment.
Please refer to shown in Fig. 7 and 8, the utility model second embodiment's substrate 40 mainly by several circuit layers be superimposed with each other the institute constitute; Among the embodiment as shown in the figure, disclose this substrate 40 and constituted by one first circuit layer 40a, a second circuit layer 40b, a tertiary circuit layer 40c and one the 4th circuit layer 40d.The substrate 40 that this several circuit layer 40a, 40b, 40c, 40d are constituted has a relative top layer 41 and a bottom 42 equally, this top layer 41 and this bottom 42 are preferably an isolation layer (not indicating) that is formed at these substrate 40 surfaces, and also can respectively be provided with an isolation layer (not illustrating) between this several circuit layer 40a, 40b, 40c, 40d.
Moreover this substrate 40 can utilize wire laying mode (layout) to form a coil groups 43 in a side on this top layer 41 equally, and this coil groups 43 includes several coils 431 of mutual electrical connection.In addition, this substrate 40 is provided with a through hole 44, and this through hole 44 axially is through to this bottom 42 by this top layer 41, when this substrate 40 during in conjunction with the bearing part 12 of this skeleton frame 10, and the axle bed 13 of this skeleton frame 10 this through hole 44 that can stretch through.
By this several circuit layer 40a, 40b, 40c, 40d constitutes the structural design of this substrate 40, this several circuit layer 40a, 40b, 40c, the surface of 40d all can utilize wire laying mode (layout) to form this several coils 431 respectively, in order to increase the respectively winding turns of this coil 431, whereby, whole axial height at this substrate 40 is unlikely to excessive increase, and under the condition of the radial width size constancy of this substrate 40, the utility model micro fan gets final product the more multi-thread circle 431 of winding, and then improve rotating speed and moment of torsion, and equally can be towards the direction research and development design of more compactization.
Again, please refer to shown in Figure 8ly, this coil groups 43 also can directly be formed at one drive circuit 45 circuit layer; Among the embodiment as shown in the figure, in this first circuit layer 40a surface this drive circuit 45 is set, this first circuit layer 40a can form a circuit and lay district's (indicating) between any two adjacent windings 431, so that this drive circuit 45 has the circuit laying district that enough spaces can be arranged at this first circuit layer 40a surface; Whereby, when this drive circuit 45 also is integrated on this substrate 10, more can reach the advantage that reduces structure and assembling complexity.
As mentioned above, the utility model micro fan can be positioned at the structural design of a side (preferable between this top layer 21,41 and this bottom 22,42) on the top layer 21,41 of this substrate 20,40 really by the coil groups 23,43 of this substrate 20,40, axial height with effective minimizing the utility model micro fan, and also can reduce the overall volume of this micro fan relatively, and then reach the function of being convenient to towards microminiaturized direction research and development design.
Claims (13)
1. micro fan is characterized in that comprising:
A skeleton frame has a bearing part, and this bearing part is provided with an axle bed;
A substrate is incorporated into the bearing part of this skeleton frame, and this substrate has relative a top layer and a bottom, has a coil groups between this top layer and this bottom, and this coil groups is electrically connected a drive circuit; And
Flabellum is provided with a central shaft and a permanent magnet, and this central shaft is incorporated into the axle bed of this skeleton frame, and this permanent magnet is relative with this coil groups.
2. micro fan as claimed in claim 1 is characterized in that, this substrate by several circuit layers be superimposed with each other the institute constitute, this coil groups comprises several coils of mutual electrical connection, respectively this coil is formed at the respectively surface of this circuit layer respectively.
3. micro fan as claimed in claim 2 is characterized in that, forms a circuit between any two adjacent windings of one of them circuit layer of this substrate and lays the district, and this drive circuit is arranged at this circuit and lays the district.
4. micro fan as claimed in claim 2 is characterized in that, respectively is provided with an isolation layer between these several circuit layers.
5. as claim 1,2,3 or 4 described micro fans, it is characterized in that the top layer of this substrate is an isolation layer.
6. micro fan as claimed in claim 5 is characterized in that, the bottom of this substrate is an isolation layer.
7. as claim 1,2,3 or 4 described micro fans, it is characterized in that this substrate is provided with a through hole that runs through this top layer and this bottom, the central shaft of this flabellum is extended through the through hole of this substrate and combines with the axle bed of this skeleton frame.
8. micro fan as claimed in claim 5 is characterized in that, this substrate is provided with a through hole that runs through this top layer and this bottom, and the central shaft of this flabellum is through at the through hole of stretching this substrate and combines with the axle bed of this skeleton frame.
9. micro fan is characterized in that comprising:
A skeleton frame has a bearing part, and this bearing part is provided with an axle bed;
A substrate is incorporated into the bearing part of this skeleton frame, and this substrate has a top layer, and a side on this top layer has a coil groups, and this coil groups is between this top layer and this bearing part, and this coil groups is electrically connected a drive circuit; And
Flabellum is provided with a central shaft and a permanent magnet, and this central shaft is in conjunction with the axle bed of this skeleton frame, and this permanent magnet is relative with this coil groups.
10. micro fan as claimed in claim 9 is characterized in that, this substrate by several circuit layers be superimposed with each other the institute constitute, this coil groups comprises several coils of mutual electrical connection, respectively this coil is formed at the respectively surface of this circuit layer respectively.
11. micro fan as claimed in claim 10 is characterized in that, forms a circuit between any two adjacent windings of one of them circuit layer of this substrate and lays the district, this drive circuit is arranged at this circuit and lays the district.
12. micro fan as claimed in claim 10 is characterized in that, respectively is provided with an isolation layer between these several circuit layers.
13., it is characterized in that the top layer of this substrate is an isolation layer as claim 9,10,11 or 12 described micro fans.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920154413XU CN201437788U (en) | 2009-05-12 | 2009-05-12 | Mini-type fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920154413XU CN201437788U (en) | 2009-05-12 | 2009-05-12 | Mini-type fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437788U true CN201437788U (en) | 2010-04-14 |
Family
ID=42399762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920154413XU Expired - Fee Related CN201437788U (en) | 2009-05-12 | 2009-05-12 | Mini-type fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI583870B (en) * | 2015-08-25 | 2017-05-21 | 建準電機工業股份有限公司 | Cooling fan with a coil substrate |
-
2009
- 2009-05-12 CN CN200920154413XU patent/CN201437788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI583870B (en) * | 2015-08-25 | 2017-05-21 | 建準電機工業股份有限公司 | Cooling fan with a coil substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20120512 |