CN103671157B - Fan - Google Patents
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- CN103671157B CN103671157B CN201210345642.6A CN201210345642A CN103671157B CN 103671157 B CN103671157 B CN 103671157B CN 201210345642 A CN201210345642 A CN 201210345642A CN 103671157 B CN103671157 B CN 103671157B
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- fan
- motor
- heat conduction
- conduction shell
- convex portion
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Abstract
The invention provides a fan comprising a fan frame, a motor and an impeller. The motor is accommodated in the fan frame, and the impeller is connected with the motor and driven by the same. The impeller comprises a hub, an inner fan blade and an outer fan blade. The hub is provided with a first surface and a second surface, the first surface faces to the motor, and the second surface is back to the motor. The inner fan blade is arranged on the first surface, and the outer fan blade is arranged on the second surface. Since the inner fan blade faces to the motor, the inner fan blade can be used for increasing air flow inside the fan, further the motor is cooled and the airflow is discharged so as to lower the temperature of the motor and internal electronic components.
Description
Technical field
The present invention is related to a kind of fan, especially with regard to a kind of fan of tool water-proof function.
Background technology
Now conventional fan encapsulates the part to be protected with glue material filling mode mostly, and then reaches the function of waterproof, please
With reference to Fig. 1, it is a kind of known fan cross sectional side view of tool water-proof function.Fan 1 includes a colloid 11, housing 12, many
Individual outer flabellum 13, a fan frame 14, a circuit board 15 and a stator structure 16.Wherein, the filling of colloid 11 and coating circuit plate 15
And stator structure 16, these outer flabellums 13 are connected with outer and in fan frame 14 in housing 12.
Because fan 1 must be using the colloid 11 of a large amount of glue materials as filling protection watchcase element, this processing procedure not only increases life
Outside producing cost and expending man-hour, the glue material for being used also has the doubt of environmental pollution.Additionally, due to the completely enclosed bag of colloid 11
Circuit board 15 is covered, therefore the not easy heat radiation of circuit board 15 can be caused, and then make that circuit board 15 is overheated to burn or be greatly reduced fan
Operational paradigm.Furthermore during filler, it is also possible to because of the temperature in glue material process of setting, internal stress etc., damage circuit board 15
On electronic component.
Therefore, how a kind of fan, the function with waterproof are provided, while can more improve heat dissipation capacity, and then fan is lifted
And the efficiency of motor, it has also become one of important topic.
The content of the invention
In view of above-mentioned problem, the purpose of the present invention can improve the gas flowing inside fan to provide a kind of fan, with
The temperature of motor and electronic component is reduced, and then lifts the heat radiation function inside fan.
Another object of the present invention, with waterproof and dust-proof effect, can avoid the aqueous vapor in the external world to provide a kind of fan
And dust is entered in motor, and affect the efficiency of fan.
It is that, up to above-mentioned purpose, a kind of fan of the present invention includes a fan frame, a motor and an impeller.Motor is placed in fan
Inframe, impeller is connected with motor, and is driven by motor.Impeller includes flabellum and an outer flabellum in a wheel hub, one.Wheel hub has
One first surface and a second surface.First surface towards motor, second surface dorsad motor.Interior flabellum is arranged at the first table
Face, outer flabellum is arranged at second surface.
According to above-mentioned design, wherein motor is upside-down mounting or formal dress.
According to above-mentioned design, wherein wheel hub is with more at least one perforation, balance intermediate plate or fluting.
According to above-mentioned design, further include：One heat conduction shell and at least a fin.The heat conduction shell fan frame combines.Radiating
Piece is contacted with the heat conduction shell, and between the heat conduction shell and the impeller.
Be up to above-mentioned purpose, the present invention still provide a kind of fan including a fan frame, a heat conduction shell, a motor, an impeller with
And multiple fin.Heat conduction shell be combined with each other with fan frame, and motor is installed in heat conduction shell, and vane rings are located at outside heat conduction shell and and horse
Up to connection, and driven by motor, these fin are contacted and between heat conduction shell and impeller with heat conduction shell.
According to above-mentioned design, wherein impeller includes：One wheel hub and a flabellum.Wheel hub has at least one perforation, balance clamp
Piece or fluting.The flabellum is arranged at the wheel hub.
It is that, up to above-mentioned purpose, the present invention more provides a kind of fan including a fan frame, a heat conduction shell, a motor and a leaf
Wheel.In combination with fan frame, motor is arranged in heat conduction shell heat conduction shell, and vane rings are outside heat conduction shell.The one surface tool of heat conduction shell
There is a first structure, first structure has at least one first convex portion.Impeller at least includes a wheel hub, and wheel hub is with one second knot
Structure, the second structure has at least one second convex portion, wherein the first convex portion is crisscross arranged with the second convex portion on first direction, and in
Partly overlap in second direction.
According to above-mentioned design, the material of the wherein heat conduction shell is the metal with high thermal conductivity coefficient.
According to above-mentioned design, wherein the heat conduction shell is sealed with the fan frame or rabbets.
The present invention has following beneficial effect：The fan of the present invention has interior flabellum and outer flabellum, wherein interior flabellum sets
It is placed in first surface of the wheel hub surface to motor, outer flabellum is arranged at the second surface of wheel hub dorsad motor, due to interior wing blade face pair
Motor is arranged, and may be used to lift the gas amount of flow inside fan, and then motor is radiated and discharges in air-flow, to reduce
The temperature of motor and internal electronic element.In addition, the fan of the present invention also contacts multiple fin with heat conduction shell phase, can pass through
Conduction is radiated with convection effect Come to motor inside.Additionally, the of first structure on a surface of heat conduction shell and wheel hub
Second structure on one surface is oppositely arranged, both in the design being radially crisscross arranged and partly overlap on axial direction, with
So that aqueous vapor and dust flow are more difficult to motor, and then reach effect of water proof and dust proof.
Description of the drawings
Fig. 1 is the cross sectional side view of known fan；
Fig. 2A is a kind of cross sectional side view of fan of a preferred embodiment of the present invention；
Fig. 2 B are the schematic perspective view according to the fan of Fig. 2A；
Fig. 3 is enlarged diagram of Fig. 2A dotted lines circle around part；And
Fig. 4 A to Fig. 4 D are according to the first structure and the variation pattern schematic diagram of the second structure of fan of the present invention.
Wherein, description of reference numerals is as follows：
1、2：Fan
11：Colloid
12：Housing
13、233：Outer flabellum
14、21：Fan frame
15、25：Circuit board
16、222：Stator structure
22：Motor
221：Rotor structure
23：Impeller
231：Wheel hub
231a：First surface
231b：Second surface
231c：Perforation
231d：Fluting
231e：Balance intermediate plate
232：Interior flabellum
24：Heat conduction shell
241：Surface
26：Fin
A：First convex portion
A’：Second convex portion
B：First recess
B’：Second recess
C：Dotted line circle is around part
S1a、S1b、S1c、S1d、S1e：First structure
S2a、S2b、S2c、S2d、S2e：Second structure
Specific embodiment
Hereinafter with reference to correlative type, an a kind of preferred embodiment of fan of the present invention is illustrated, and with relevant paragraph point
The different modes of bright different embodiments are not mentionleted alone, wherein identical element will be illustrated with identical reference marks.
Fig. 2A is refer to, it is the cross sectional side view according to a kind of fan of a preferred embodiment of the present invention.Fan 2 includes
One fan frame 21, a motor 22 and an impeller 23.Wherein motor 22 is placed in fan frame 21, and impeller 23 is connected with motor 22, and
Driven by motor 22.The fan 2 of the present invention is, for example, a drip-proof fan, and it is applied to the environment rich in aqueous vapor.Wherein, motor
22 can be formal dress form or flip-chip fashion, in the present embodiment, because circuit board 25 is the top that is for example arranged at motor 22, because
The motor 22 of this present embodiment be in upside-down mounting mode as an example, it is so non-to limit the use of in the present invention.
Impeller 23 includes a wheel hub 231 and an outer flabellum 233.Wheel hub 231 coats motor 22, and with a first surface
Both 231a and a second surface 231b, first surface 231a and second surface 231b are oppositely arranged, wherein first surface 231a
Towards motor 22, also refer to first surface 231a towards inside fan 2.Second surface 231b dorsad motor 22, also refer to second surface
231b is towards outside fan 2.
Impeller 23 can further include flabellum 232 according to demand, and interior flabellum 232 is arranged at first surface
231a, and relatively outer flabellum 233 is arranged at second surface 231b.Wherein, interior flabellum 232 it is leaf for streamlined, it is curved or
It is plate shaped.The fan 2 of the present embodiment lifts wheel hub by the way that interior flabellum 232 to be arranged at the first surface 231a of wheel hub 231
Gas amount of flow inside 231, and then motor 22 is radiated, and drive gas to discharge from the lower section of fan 2, to reduce motor
22 and the temperature of internal electronic element.
Fan 2 can further include a heat conduction shell 24 on demand, and in combination with fan frame 21, the ring of impeller 23 sets heat conduction shell 24
It is outer in heat conduction shell 24 and be connected with motor 22, and heat conduction shell 24 in modes such as sealed or interlockings in combination with fan frame 21.This enforcement
The material of the heat conduction shell 24 of mode is the material that the higher metal of thermal conductivity factor or thermal conductivity factor are higher than fan frame 21, " high heat conduction system
Number " refers to the thermal conductivity factor higher than plastic cement, such as gold, silver, copper, aluminium, iron etc., but not limited to this.Can be light by heat conduction shell 24
The heat produced by motor 22 is easily eliminated, and then improves the service life and efficiency of motor 22 and fan 2.
In more detail, motor 22 more may include a rotor structure 221 and a stator structure 222.Rotor structure 221 with it is fixed
Minor structure 222 is correspondingly arranged, and rotor structure 221 is arranged around stator structure 222.Wherein, rotor structure 221 and stator structure
222 are arranged in heat conduction shell 24.
Additionally, fan 2 also can further arrange one or more fin 26 in the surface of heat conduction shell 24, with heat radiation
The radiating effect of heat conduction shell 24.In this embodiment, these fin 26 are contacted with heat conduction shell 24, and are arranged at lead at equal intervals
The surface of hot shell 24, and between heat conduction shell 24 and impeller 23.Now, heat conduction shell 24 can be big by these fin 26
Width lifts its heat-sinking capability, with by conduction with convection effect come to radiating inside motor 22 and heat conduction shell 24, Jin Erti
The service life and efficiency of high motor 22 and fan 2.
Referring to shown in Fig. 2 B, wherein Fig. 2 B are the schematic perspective view of the fan of Fig. 2A.Additionally, wheel hub 231 can be with
There is at least one perforation 231c, perforation 231c to be arranged in wheel hub 231 according to demand, to connect the extraneous inside with wheel hub 231.
Thus, the gas in the external world and can be discharged via perforation 231c to flow to the inside of wheel hub 231 from fan 2, with to motor 22 or
Heat conduction shell 24 radiates, and reduces the temperature of the inside of wheel hub 231 or heat conduction shell 24, to improve the service life of motor 22 and fan 2
And efficiency.
Additionally, when wheel hub 231 have perforation 231c and and impeller 23 have interior flabellum 232 when, stream enter to bore a hole 231c and from
The gas flow rate that fan 2 is discharged can be further improved, and then can further improve the efficiency of motor 22 and fan 2.
Additionally, wheel hub 231 can have at least one balance intermediate plate 231e, balance intermediate plate 231e to be arranged at the according to demand
One surface 231a.The fan 2 of the present embodiment significantly lowers the overall amount of unbalance of impeller 23 by balancing the setting of intermediate plate 231e
Caused vibration effect, and then improve the service life and efficiency of motor 22 and fan 2.
Additionally, wheel hub 231 can have at least one fluting 231d, fluting 231d to be arranged at first surface according to demand
231a, aforementioned balance intermediate plate 231e can be located at fluting 231d, to save inner space.The embodiment of Fig. 2A is for purposes of illustration only, event
As a example by being arranged at multiple balance intermediate plate 231e first surface 231a and/or be filled in multiple fluting 231d, so it is non-limit the use of in
The present invention.Wherein, these flutings 231d is preferably in arrange at equal intervals.
Additionally, referring again to Fig. 2A, fan 2 can also be provided with one according to demand on a surface 241 of heat conduction shell 24
One structure S1a, and one second structure S2a is provided with the first surface 231a of wheel hub 231, wherein the second structure S2a and first
Structure S1a is oppositely arranged, and the second structure S2a and first structure S1a are partly overlapped on axial direction and set in being radially crisscross arranged
Put.So as to, fan 2 can obtain stronger water proof and dust proof effect, enter to allow fan 2 to be more suitable for various adverse circumstances, and
With longer service life and efficiency.
In addition, referring to shown in Fig. 3, Fig. 3 is enlarged diagram of Fig. 2A dotted lines circle around part C.First structure S1a
With at least one first convex portion A and the second structure S2a have at least one second convex portion A ', the first convex portion A and the second convex portion A ' in
First direction（As radially）On be crisscross arranged, and in second direction（As axially）Upper part overlaps, with formed one have concurrently it is logical
The gap of gas, waterproof and dustproof.Additionally, the first convex portion A and the length of the second convex portion A ', width or shape can phase XOR it is identical, and
First convex portion A and the second convex portion A ' quantity can be 1 or more than 1 positive integer.
In addition, according to being actually needed, first structure S1a can also be recessed with least one first convex portion A and at least one first
Portion B, and the second structure S2a then has at least one second recess B ' and at least one second convex portion A '.Wherein, the first recess B and
Two convex portion A ' are face-to-face configuration, while the first convex portion A and the second recess B ' they are also configuration face-to-face, make first structure S1a and
Second structure S2a is presented interlaced configuration, and aqueous vapor and dust further can be isolated from outward, reach waterproof and prevent by this particular design
Effect of dirt.Also, the first convex portion A and the first recess B（Or second recess B ' and the second convex portion A '）Also can have not on demand
Width together, height or shape.
Referring to shown in Fig. 4 A to Fig. 4 D, it is the variation pattern of the first structure of fan of the present invention and the second structure
Schematic diagram.The present invention first structure and the second structure can according to the actual requirements and be respectively formed as shown in Fig. 4 A first
Structure S1b is continuous annular structure and the second structure S2b is discontinuous circulus.First structure S1c as shown in Figure 4 B is
Discontinuous circulus and the second structure S2c are continuous annular structure, first structure S1d as shown in Figure 4 C and the second structure
S2d be all the gap portion of discontinuous circulus and first structure S1d fan 2 radially with the reality of the second structure S2d
Body portion is correspondingly arranged, the entity part of first structure S1d fan 2 radially with the gap portion pair of the second structure S2d
Should arrange.And as shown in Figure 4 D, first structure S1e and the second structure S2e are all continuous annular structure.
In addition, though the present invention is illustrated by first structure as a example by outer ring and the second structure are in inner ring, so can also be according to
First structure is changed and is located at inner ring and the second structure changes and is located at outer ring by demand.
It is noted that though presently preferred embodiments of the present invention manner described above is illustrated individually, so this is not used
To limit the present invention, in other embodiments, also the actual use demand of visual fan and environment of operation, do the group of different modes
Collocation is closed, to obtain corresponding effect, this is only for example not so limited system.
In sum, fan of the invention has interior flabellum and outer flabellum, wherein interior flabellum is arranged at wheel hub surface to motor
First surface, outer flabellum is arranged at the second surface of wheel hub dorsad motor, because interior wing blade face arranges motor, may be used to carry
The gas amount of flow inside fan is risen, and then motor is radiated and is discharged in air-flow, to reduce motor and internal electron unit
The temperature of part, and to improve the service life and efficiency of motor and fan.
In addition, the fan of the present invention can also pass through heat conduction shell, the perforation even setting of fin, to reduce in wheel hub
Portion or the temperature of heat conduction shell, to improve the service life and efficiency of motor and fan.
Additionally, the first structure on a surface of heat conduction shell is oppositely arranged with the second structure of the first surface of wheel hub, two
Person in being radially crisscross arranged and being the design of setting of partly overlapping on axial direction so that aqueous vapor and dust flow are to motor
It is more difficult, and then prevent aqueous vapor and dust from entering, so that fan is more suitable for various adverse circumstances, and with the longer use longevity
Life and efficiency.Furthermore, because the material of heat conduction shell is the metal with high thermal conductivity coefficient, can be by the heat energy of motor by conducting row
Go out.
Fan also of the present invention can pass through the setting of balance intermediate plate can be greatly reduced shaking caused by flabellum amount of unbalance
It is dynamic to affect, and then improve the service life and efficiency of motor and fan.
Illustrative is the foregoing is only, rather than as restriction.Any spirit and scope without departing from the present invention, and to it
The equivalent modifications for carrying out or change, in being intended to be limited solely by right.
Claims (8)
1. a kind of fan, is characterized in that, including：
One fan frame；
One heat conduction shell, in combination with the fan frame, a surface of the heat conduction shell has a first structure, and the first structure has at least
One first convex portion；
One motor, is placed in the fan frame；And
One impeller, is connected with the motor, and is driven by the motor, and the impeller includes：
One wheel hub, with least one perforation, a first surface and a second surface, towards the motor, this second for the first surface
The surface dorsad motor, the first surface has one second structure, and second structure has at least one second convex portion, wherein this
One convex portion and second convex portion partly overlap in being crisscross arranged in the radial direction on axial direction；
Flabellum in one, is arranged at the first surface；And
One outer flabellum, is arranged at the second surface；
Wherein in the fan radially, the perforation is between second structure and the interior flabellum.
2. fan as claimed in claim 1, it is characterised in that：The motor is upside-down mounting or formal dress.
3. fan as claimed in claim 1, it is characterised in that：The wheel hub is with more balance intermediate plate or fluting.
4. fan as claimed in claim 1, it is characterised in that：Further include：
An at least fin, contacts with the heat conduction shell, and between the heat conduction shell and the impeller.
5. a kind of fan, is characterized in that, including：
One fan frame；
One heat conduction shell, be combined with each other with the fan frame, and a surface of the heat conduction shell has a first structure, and the first structure has extremely
Few one first convex portion；
One motor, is installed in the heat conduction shell；
One impeller, is located on outside the heat conduction shell, is connected with the motor, and is driven by the motor；The impeller includes：
One wheel hub, with least one perforation, a first surface and a second surface, towards the motor, this second for the first surface
The surface dorsad motor, the first surface has one second structure, and second structure has at least one second convex portion, wherein this
One convex portion and second convex portion partly overlap in being crisscross arranged in the radial direction on axial direction；
Flabellum in one, is arranged at the first surface, and the perforation is between second structure and the interior flabellum；And
One outer flabellum, is arranged at the second surface wherein in the fan radially, and
Multiple fin, contact with the heat conduction shell, and between the heat conduction shell and the impeller.
6. fan as claimed in claim 5, is characterized in that, the wheel hub is with more balance intermediate plate or fluting.
7. the fan as described in claim 4 or 5, it is characterised in that：The material of the heat conduction shell is the gold with high thermal conductivity coefficient
Category.
8. the fan as described in claim 4 or 5, it is characterised in that：The heat conduction shell is sealed with the fan frame or rabbets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345642.6A CN103671157B (en) | 2012-09-18 | 2012-09-18 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345642.6A CN103671157B (en) | 2012-09-18 | 2012-09-18 | Fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671157A CN103671157A (en) | 2014-03-26 |
| CN103671157B true CN103671157B (en) | 2017-05-03 |
Family
ID=50309696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210345642.6A Active CN103671157B (en) | 2012-09-18 | 2012-09-18 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671157B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019120151A (en) * | 2017-12-28 | 2019-07-22 | 日本電産株式会社 | fan |
| JP7192225B2 (en) * | 2018-03-16 | 2022-12-20 | 日本電産株式会社 | drive |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0937516A (en) * | 1995-07-20 | 1997-02-07 | Matsushita Electric Ind Co Ltd | Cooling fan motor |
| CN2332835Y (en) * | 1997-11-28 | 1999-08-11 | 蔡金福 | Improved radiatin fan |
| CN100453822C (en) * | 2006-03-15 | 2009-01-21 | 台达电子工业股份有限公司 | Fan, motor and blade thereof |
| CN200993123Y (en) * | 2006-12-11 | 2007-12-19 | 陈正钢 | Radiating fan |
| CN101029649A (en) * | 2007-03-20 | 2007-09-05 | 台达电子零组件(东莞)有限公司 | Balancer for fan device |
| CN201391489Y (en) * | 2009-03-09 | 2010-01-27 | 鑫贺精密电子(东莞)有限公司 | Dustproof heat radiating fan |
-
2012
- 2012-09-18 CN CN201210345642.6A patent/CN103671157B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671157A (en) | 2014-03-26 |
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