CN103912508A - Miniature cooling fan and coil substrate thereof - Google Patents

Miniature cooling fan and coil substrate thereof Download PDF

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Publication number
CN103912508A
CN103912508A CN201310001384.4A CN201310001384A CN103912508A CN 103912508 A CN103912508 A CN 103912508A CN 201310001384 A CN201310001384 A CN 201310001384A CN 103912508 A CN103912508 A CN 103912508A
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CN
China
Prior art keywords
coil
induction
radiating fan
fan
minitype radiating
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Granted
Application number
CN201310001384.4A
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Chinese (zh)
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CN103912508B (en
Inventor
单多年
郑宗欣
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Sunonwealth Electric Machine Industry Co Ltd
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Sunonwealth Electric Machine Industry Co Ltd
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Priority to CN201310001384.4A priority Critical patent/CN103912508B/en
Publication of CN103912508A publication Critical patent/CN103912508A/en
Application granted granted Critical
Publication of CN103912508B publication Critical patent/CN103912508B/en
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Abstract

A miniature cooling fan and a coil substrate thereof can avoid interference produced during rotation and reduce the overall axial height. The miniature cooling fan comprises a fan frame seat provided with an air inlet an air outlet, the coil substrate arranged on a bearing portion and a central shaft rotatably arranged at a coupling portion, wherein the bearing portion is arranged in the fan frame seat, the coupling portion is arranged on the bearing portion, the coil substrate is provided with a substrate portion, a coil group and a sensing drive element, the coil group is integrated with the substrate portion in a printing or electroforming wire arrangement mode, the substrate portion is provided with one surface and one bottom face which are opposite, and the sensing drive element is arranged on the bottom face.

Description

Minitype radiating fan and coil substrate thereof
Technical field
The invention relates to a kind of Minitype radiating fan and coil substrate thereof, particularly avoid its when rotation to produce Minitype radiating fan and the coil substrate thereof of interfering and more reducing overall axial height about a kind of.
Background technique
Traditional heat-dissipating fan is as shown in Figure 1, and this radiation fan 9 includes a fan frame 91, stator group 92 and an impeller 93; This fan frame 91 has a base plate 911 and an axle bed 912, and this axle bed 912 is arranged on this base plate 911; This stator pack 92 is socketed on this axle bed 912 outer circumferential faces, and this stator pack 92 is made up of a stator core 921, a coil groups 922 and a circuit board 923, this coil groups 922 is wound in outside this stator core 921,923 of this circuit boards, between this coil groups 922 and this base plate 911, and combine with this axle bed 912; This impeller 93 is arranged at this axle bed 912 rotationally.
Wherein, the structure jointly being formed by stator core 921, coil groups 922 and circuit board 923 due to the stator pack 92 of this radiation fan 9, so that the axial height of these radiation fan 9 entirety also cannot be done effective reduction, can be tending towards microminiaturized possibility and relatively limit this radiation fan 9, therefore traditional real difficulty of this radiation fan 9 is installed among microminiature electronic equipment or instrument.
Based on this, in order to simplify the complicated design of stator pack, then there is micro motor 8 as shown in Figure 2, this micro motor 8 has a coil stator 81, this coil stator 81 is incorporated into a substrate 82, and this coil stator 81 has a circuit board 811, a coil groups 812 and one drive circuit element 813, this coil groups 812 is connect up and be formed at this circuit board 811, and 813 of this components of drive circuit are located at this circuit board 811 surfaces; This micro motor 8 also has a rotor 83, the rotating axle bed 821 of being located at this substrate 82 of this rotor 83, and the permanent magnet 831 being provided with it is to should coil groups 812.
But, though aforesaid coil stator 81 is directly integrated in this circuit board 811 with wire laying mode by this coil groups 812, and simplified the complicated design of traditional stator group; But the surface of this circuit board 811 is still provided with this components of drive circuit 813, therefore when this coil stator 81 is used in to Minitype radiating fan, the overall axial height of this Minitype radiating fan but still can be limited to the height having of this components of drive circuit 813 own and cannot further reduce again, eventually only can be limited under a certain specific axial height, its effect is not remarkable.
Moreover, this components of drive circuit 813 that is positioned at these circuit board 811 surfaces also easily produces and interferes in these rotor 83 rotation processes, and make this rotor 83 accidentally touch this components of drive circuit 813, and cause this components of drive circuit 813 to be subject to for a long time external force to collide and damage; And, more can may be located at outside the coated scope of wheel hub because of this components of drive circuit 813, and cause the blade of wheel hub periphery be subject to the interference of this components of drive circuit 813 and cannot smooth and easyly turn round, therefore cause Minitype radiating fan to decommission and even damage.
In view of this, be really necessary to develop one and be different from aforesaid Minitype radiating fan and coil substrate thereof, to solve variety of issue as above.
Summary of the invention
Main purpose of the present invention is to improve the problems referred to above, and so that a kind of Minitype radiating fan and coil substrate thereof to be provided, it can reduce overall axial height, and avoids it to produce interference phenomenon person in operation process.
For reaching aforementioned creation object, Minitype radiating fan of the present invention, comprises: a base of fan frame, be provided with a wind inlet and an exhaust outlet, and this base of fan frame inside has a bearing part, and this bearing part is provided with an axis part; One coil substrate, be located at this bearing part, this coil substrate has a baseplate part, a coil groups and an induction-driving component, this coil groups is to print or wire laying mode and this baseplate part of electroforming integrate, and this baseplate part is formed with relative surface and a bottom surface, and this induction-driving component is located at this bottom surface; And an impeller, be rotatably located at this axis part with a central shaft.
Wherein, this induction-driving component is located between this bottom surface and this bearing part.
Wherein, this bearing part is provided with a containing groove, and this containing groove is positioned at this outside, axis part, and this induction-driving component is placed in this containing groove.
Wherein, this containing groove is a counterbore; Or this containing groove is a through hole.
Wherein, this bearing part protrudes towards this base of fan frame is inner, and is formed with a padded space in this bearing part dorsal part, and this induction-driving component stretches into this containing groove that forms through hole, and part convexedly stretches in this padded space.
Wherein, this coil substrate is separately provided with several electronic components, and this counts electronic component and be arranged at this bottom surface of this baseplate part.
Wherein, this impeller has a wheel hub, a permanent magnet and number blade, and this is counted blade and is incorporated into around this wheel hub, and this permanent magnet is in conjunction with this wheel hub, and relative with this coil groups.
For reaching aforementioned creation object, the present invention separately provides a kind of coil substrate for Minitype radiating fan, comprises: a baseplate part, is formed with relative surface and a bottom surface; One coil groups is to print or wire laying mode and this baseplate part of electroforming integrate; And an induction-driving component, be located at the bottom surface of this baseplate part.
Wherein, this coil substrate is separately provided with several electronic components, and this counts electronic component and be arranged at this bottom surface of this baseplate part.
So, useful technique effect of the present invention is, Minitype radiating fan of the present invention is this baseplate part bottom surface that this induction-driving component can be placed in to this coil substrate, to guarantee whereby do not there is the induction-driving component that any formation is interfered on this baseplate part surface of this coil substrate, to guarantee smooth and easy in operation process of this Minitype radiating fan; Even, more make this induction-driving component can be placed in this containing groove, and reach effect of the overall axial height of effective reduction Minitype radiating fan.
Accompanying drawing explanation
Fig. 1: the cross-sectional view of existing radiation fan.
Fig. 2: the perspective view of existing micro motor.
Fig. 3: the perspective view of Minitype radiating fan of the present invention.
Fig. 4: the cross-sectional view of Minitype radiating fan of the present invention.
Fig. 5: the perspective view of another preferred embodiment of the present invention.
Fig. 6: the cross-sectional view of another preferred embodiment of the present invention.
Fig. 7: the perspective view of the another preferred embodiment of the present invention.
Fig. 8: the cross-sectional view of the another preferred embodiment of the present invention.
 
[primary component symbol description]
(the present invention)
1 base of fan frame 11 wind inlets
12 exhaust outlets 13,13 ' bearing part
14 axis part 15 pod apertures
151 ribs 16,16 ' containing groove
2 coil substrate 21 baseplate parts
211 surperficial 212 bottom surfaces
213 Power Port 22 coil groups
23 induction-driving component
3 impeller 31 wheel hubs
311 central shaft 312 blades
32 permanent magnets
4 cover plates
The padded space of S
(prior art)
9 radiation fans 91 are fanned frame
911 base plate 912 axle beds
92 stator pack 921 stator cores
922 coil groups 923 circuit boards
93 impellers
8 micro motor 81 coil stators
811 circuit board 812 coil groups
813 components of drive circuit 82 substrates
821 axle bed 83 rotors
831 permanent magnets.
Embodiment
For above-mentioned and other object of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and coordinate accompanying drawing, be described in detail below:
Please refer to shown in Fig. 3, it is a preferred embodiment of the present invention, this Minitype radiating fan includes a base of fan frame 1, a coil substrate 2 and an impeller 3, this coil substrate 2 is located at this base of fan frame 1 inside, this impeller 3 is rotationally in conjunction with this base of fan frame 1, and be covered on this base of fan frame 1 with a cover plate 4, with by this coil substrate 2 and this impeller 3 cover caps in this base of fan frame 1.
This base of fan frame 1 can change its aspect in response to different micro fans, and this base of fan frame 1 is provided with the wind inlet 11 and the exhaust outlet 12 that are communicated with its inside, circulates in wherein for airflow smooth.And this base of fan frame 1 inside is provided with a bearing part 13, these bearing part 13 use are for placing this coil substrate 2; This bearing part 13 is provided with an axis part 14, the member that this axis part 14 can be pivoted for this impeller 3 of any confession, and the axis part 14 of the present embodiment is an axle bed, and better this bearing part 13 central positions that are arranged at; The base of fan frame 1 of the present embodiment can also select to be provided with several pod apertures 15, and this is counted pod apertures 15 and is surrounded on this bearing part 13 peripheries, and better this base of fan frame 1 bottom surface of running through as shown in the figure, circulates for airflow smooth; And between wantonly two adjacent pod apertures 15, be also provided with a rib 151, to borrow this rib 151 to support these bearing parts 13.
Below be only the basic aspect of this base of fan frame 1, those skilled in the art can, according to the change of routine techniques means, be not repeated herein also not as limit.
Especially, this bearing part 13 is also provided with a containing groove 16, and this containing groove 16 is positioned at this 14 outsides, axis part; The containing groove 16 of the present embodiment is better can be depicted as a counterbore that is opened in this bearing part 13 as drawing.
This coil substrate 2 is located at this bearing part 13, and this coil substrate 2 has a baseplate part 21 and a coil groups 22, and this coil groups 22 is incorporated into this baseplate part 21; And the baseplate part 21 of the present embodiment is formed with a surface 211 and a bottom surface 212, and this surface 211 is relative with this bottom surface 212; And this surface 211 and this bottom surface 212 all can have insulation function.And this baseplate part 21 is also provided with a Power Port 213, this Power Port 213 is electrically connected with this coil groups 22.
This coil groups 22 can utilize wiring (layout) mode such as printing (printing) or electroforming (electroforming) and this baseplate part 21 to integrate again, so that this coil groups 22 is positioned at the surface 211 of this baseplate part 21.
Hold institute and say, this coil substrate 2 is also provided with an induction-driving component 23, and this induction-driving component 23 is located at this bottom surface 212 of this baseplate part 21, and better being placed in this containing groove 16, to reduce the axial height of integral heat sink fan; Wherein, this induction-driving component 23 can be that the common induction forming of the moving drive circuit of hall sensing element and horse drives integrated circuit.Based on this concept, several electronic components (figure does not illustrate) that this coil substrate 2 is separately provided with also can be arranged at this bottom surface 212 of this baseplate part 21, and select to be equally placed in this containing groove 16, to reach the effect that reduces integral heat sink fan axial height.
This impeller 3 has a wheel hub 31 and a permanent magnet 32, and this wheel hub 31 is provided with a central shaft 311, and to be rotatably located at this axis part 14 by this central shaft 311, and this wheel hub 31 is also combined with several blades 312 around; This permanent magnet 32 is in conjunction with this wheel hub 31 again, and relative with this coil groups 22, and on the axial direction of this impeller 3, between this permanent magnet 32 and this coil groups 22, is formed with an air gap.The basic structure of this impeller 3 is for those skilled in the art can understand, and holds and is no longer described in detail it in this.
In the time that the present invention has assembled also actual use as shown in Figure 4, because this induction-driving component 23 is arranged at the bottom surface 212 of this baseplate part 21 and is placed in the containing groove 16 of this base of fan frame 1, form and interfere between this coil groups 22 and this permanent magnet 32 therefore unlikely; That is to say, when this induction-driving component 23 is arranged at this bottom surface 212 of this baseplate part 21, or even while being further placed in this containing groove 16, on this surface 211 of this baseplate part 21, can not be provided with any this induction-driving component 23, therefore can not only make the smooth and easy running of Minitype radiating fan of the present invention more can effectively reduce its overall axial height.
And, this impeller 3 more can not be subject to the interference of this induction-driving component 23, and can be at these impeller 3 operation process, several blades 312 of guaranteeing this wheel hub 31 and periphery thereof can not produce collision with this induction-driving component 23, there is the effect in better working life to make the unlikely damage of this induction-driving component 23 and this impeller 3 more be able to smooth and easy running, to reach whereby maintaining this Minitype radiating fan.
Based on above-mentioned same concept, another preferred embodiment of the present invention as shown in Figure 5,6, has this base of fan frame 1, coil substrate 2 and the impeller 3 identical with previous embodiment.Difference is: the set containing groove 16 ' of this base of fan frame 1 is a through hole that is penetration state, and form this containing groove 16 ' of through hole and be and can make this induction-driving component 23 can complete being held into, so that the axial height when reducing whereby this coil substrate 2 and amplexiforming this bearing part 13.Another all the other members are all identical with previous embodiment and describe in detail as above, hold and no longer repeat to repeat it in this.
What is more, the present invention has again a preferred embodiment as shown in Figure 7,8, and this embodiment has this base of fan frame 1, coil substrate 2 and the impeller 3 identical with previous embodiment equally.Difference is: the set bearing part 13 ' of this base of fan frame 1 is protruding with a height towards this base of fan frame 1 inside, and this bearing part 13 ' dorsal part is formed with a padded space S; And coordinate this bearing part 13 ', the set containing groove 16 ' of this base of fan frame 1 is also a through hole as mentioned above.In the present embodiment, this induction-driving component 23 stretches into this containing groove 16 ' that forms through hole, and partly convexedly stretches in this padded space S, to avoid this induction-driving component 23 to contact with other members, and causes short circuit or wearing and tearing.At this, it is no longer repeated equally all the other members and previous embodiment same section.
Generally speaking, Minitype radiating fan of the present invention is the bottom surface 212 that this induction-driving component 23 can be placed in to this baseplate part 21 of this coil substrate 2, to guarantee whereby do not there is the induction-driving component 23 that any formation is interfered on the surface 211 of this baseplate part 21 of this coil substrate 2, to avoid smooth and easy in operation process of this Minitype radiating fan; Even, more make this induction-driving component 23 can be placed in this containing groove 16,16 ', and reach effect of effective reduction Minitype radiating fan entirety axial height.
Just above-described, be only preferred embodiment of the present invention, when not limiting the scope of the present invention with this; Therefore all simple equivalences of doing according to the present patent application the scope of the claims and creation description change and modify, and all should still remain within the scope of the patent.

Claims (10)

1. a Minitype radiating fan, is characterized in that, comprises:
A base of fan frame, is provided with a wind inlet and an exhaust outlet, and this base of fan frame inside has a bearing part, and this bearing part is provided with an axis part;
A coil substrate, be located at this bearing part, this coil substrate has a baseplate part, a coil groups and an induction-driving component, this coil groups is to print or wire laying mode and this baseplate part of electroforming integrate, and this baseplate part is formed with relative a surface and a bottom surface, and this induction-driving component is located at this bottom surface; And
An impeller, is rotatably located at this axis part with a central shaft.
2. Minitype radiating fan as claimed in claim 1, is characterized in that, this induction-driving component is located between this bottom surface and this bearing part.
3. Minitype radiating fan as claimed in claim 1, is characterized in that, this bearing part is provided with a containing groove, and this containing groove is positioned at this outside, axis part, and this induction-driving component is placed in this containing groove.
4. Minitype radiating fan as claimed in claim 3, is characterized in that, this containing groove is a counterbore.
5. Minitype radiating fan as claimed in claim 3, is characterized in that, this containing groove is a through hole.
6. Minitype radiating fan as claimed in claim 5, it is characterized in that, this bearing part protrudes towards this base of fan frame is inner, and is formed with a padded space in this bearing part dorsal part, this induction-driving component stretches into this containing groove that forms through hole, and part convexedly stretches in this padded space.
7. the Minitype radiating fan as described in claim 1,2,3,4,5 or 6, is characterized in that, this coil substrate is separately provided with several electronic components, and these several electronic components are arranged at this bottom surface of this baseplate part.
8. the Minitype radiating fan as described in claim 1,2,3,4,5 or 6, it is characterized in that, this impeller has a wheel hub, a permanent magnet and several blade, and these several blades are incorporated into around this wheel hub, this permanent magnet is in conjunction with this wheel hub, and relative with this coil groups.
9. for a coil substrate for Minitype radiating fan, it is characterized in that, comprise:
A baseplate part, is formed with relative a surface and a bottom surface;
A coil groups is to print or wire laying mode and this baseplate part of electroforming integrate; And
An induction-driving component, is located at the bottom surface of this baseplate part.
10. Minitype radiating fan as claimed in claim 9, is characterized in that, this coil substrate is separately provided with several electronic components, and these several electronic components are arranged at this bottom surface of this baseplate part.
CN201310001384.4A 2013-01-04 2013-01-04 Centrifugal Minitype radiating fan Active CN103912508B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310001384.4A CN103912508B (en) 2013-01-04 2013-01-04 Centrifugal Minitype radiating fan

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Application Number Priority Date Filing Date Title
CN201310001384.4A CN103912508B (en) 2013-01-04 2013-01-04 Centrifugal Minitype radiating fan

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CN103912508B CN103912508B (en) 2018-07-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105490399A (en) * 2014-10-09 2016-04-13 讯凯国际股份有限公司 Fan, and motor stator structure and manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6283726B1 (en) * 1999-03-04 2001-09-04 Temic Automotive Electric Motors Gmbh Radial blower, particularly for heating and air conditioning systems in automobiles
CN1740573A (en) * 2004-08-27 2006-03-01 鸿富锦精密工业(深圳)有限公司 Thin fan
CN1987114A (en) * 2005-12-20 2007-06-27 建准电机工业股份有限公司 Thin type fan
CN101886635A (en) * 2009-05-12 2010-11-17 建准电机工业股份有限公司 Micro-fan
CN202483908U (en) * 2012-01-04 2012-10-10 建准电机工业股份有限公司 horizontal convection fan
CN203114668U (en) * 2013-01-04 2013-08-07 建准电机工业股份有限公司 Mini-type cooling fan and coil substrate thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6283726B1 (en) * 1999-03-04 2001-09-04 Temic Automotive Electric Motors Gmbh Radial blower, particularly for heating and air conditioning systems in automobiles
CN1740573A (en) * 2004-08-27 2006-03-01 鸿富锦精密工业(深圳)有限公司 Thin fan
CN1987114A (en) * 2005-12-20 2007-06-27 建准电机工业股份有限公司 Thin type fan
CN101886635A (en) * 2009-05-12 2010-11-17 建准电机工业股份有限公司 Micro-fan
CN202483908U (en) * 2012-01-04 2012-10-10 建准电机工业股份有限公司 horizontal convection fan
CN203114668U (en) * 2013-01-04 2013-08-07 建准电机工业股份有限公司 Mini-type cooling fan and coil substrate thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105490399A (en) * 2014-10-09 2016-04-13 讯凯国际股份有限公司 Fan, and motor stator structure and manufacturing method thereof
CN105490399B (en) * 2014-10-09 2018-03-23 讯凯国际股份有限公司 Fan, its motor stator structure and its manufacture method

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