CN104314844A - Passive fan - Google Patents
Passive fan Download PDFInfo
- Publication number
- CN104314844A CN104314844A CN201410524292.9A CN201410524292A CN104314844A CN 104314844 A CN104314844 A CN 104314844A CN 201410524292 A CN201410524292 A CN 201410524292A CN 104314844 A CN104314844 A CN 104314844A
- Authority
- CN
- China
- Prior art keywords
- passive
- fan
- impeller
- power rotor
- fan frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
Abstract
The invention discloses a passive fan. The passive fan comprises a fan frame, at least one impeller and at least one active rotor, wherein the impeller is arranged in the fan frame; the active rotor is arranged on the fan frame and drives the rotation of the impeller; the impeller and the active rotor are configured independently.
Description
The divisional application that the application is the applying date is on July 6th, 2007, application number is 200710128335.1, denomination of invention is the patent application of " passive fan ".
Technical field
The present invention relates to a kind of fan, particularly relate to a kind of passive fan.
Background technique
Along with electronic product is towards high-performance, high frequency, high speed and lightening developing rapidly, causes the heating temperature of electronic product more and more higher, thus easily produce wild effect, affect production reliability and working life.Therefore, heat radiation one of important topic becoming electronic product, and utilize fan to be common vibrational power flow as sink.
Please refer to shown in Fig. 1, existing fan 1 comprises impeller 11, motor 12 and a fan frame 13, and impeller 11 has multiple flabellum 111.Wherein, this motor 12 is arranged on this impeller 11 central authorities, and is arranged on together with this impeller 11 and fans in frame 13.Motor 12 is linked to impeller 11, and drives impeller 11 is rotated, and so just can produce air-flow to reach the effect of heat radiation.
But in this fan 1, Yin Mada 12 is positioned at impeller 11 central authorities and has certain size, therefore when considering motor 12 parking space and fan 1 overall volume, must sacrifice the fan blade area of impeller 11, and reducing the heat dissipation of fan 1.In addition, Yin Mada 12 itself also can produce heat, therefore the heat dissipation of fan 1 can be further reduced.From aforementioned, the design of fan 1 and heat dissipation all have very large restriction.
Summary of the invention
For solving the problem, the invention provides a kind of passive fan, with when same size, significantly reduce impeller central authorities calm wind area and significantly improve passive fan go out inlet air active area.
For reaching above-mentioned purpose, the present invention proposes a kind of passive fan, comprising: a fan frame, and this fan frame has a framework, at least one rib and a central siphon portion, and this rib links this central siphon portion and this framework; At least one passive impeller, be arranged in this fan frame, this passive impeller comprises multiple flabellum, a rotating shaft and at least one dynamical inducing part, this rotating shaft is nested with in this central siphon portion, arrange in this central siphon portion at least one bearing with support this rotating shaft rotate, this dynamical inducing part have many magnetic poles magnetic texure body and around being arranged at this passive impeller periphery or the plurality of flabellum outer rim; And at least one power rotor, its periphery is provided with the magnet of multiple N, S magnetic pole, be arranged on fan frame with this passive wheel rotation of magnetic force priming, and this passive impeller and this power rotor independently configure, and wherein this passive impeller has multiple flabellum, this dynamical inducing part is around being arranged on this passive impeller periphery or these flabellum outer rims, and wherein this power rotor is arranged on this corner, fan frame side.
Also propose a kind of passive fan, comprising: a fan frame, this fan frame has a framework, at least one rib and a central siphon portion, and this rib links this central siphon portion and this framework; At least one passive impeller, be arranged in this fan frame, this passive impeller comprises multiple flabellum, a rotating shaft and at least one dynamical inducing part, this rotating shaft is nested with in this central siphon portion, arrange at least one bearing in this central siphon portion to rotate to support this rotating shaft, this dynamical inducing part is around being arranged at this passive impeller periphery or the plurality of flabellum outer rim; And a single power rotor, be arranged at this passive wheel rotation of priming on fan frame, and this passive impeller and this rotary rotor independently configure, wherein this power rotor is arranged on this corner, fan frame side.
When passive impeller is multiple, this power rotor drives these passive wheel rotation.
The while of this power rotor, drive these passive wheel rotation respectively or sequentially.
When power rotor is multiple, these power rotors drive this passive wheel rotation jointly.
When impeller and power rotor are multiple, these power rotors drive these passive wheel rotation respectively.
This power rotor is separate motors, driver or runner.
This dynamical inducing part is the structure of many magnetic poles annular permanent magnnet, the annular magnetizer of coated many magnetic poles gonosome, the structure of tool guide slot or tool dentation structure.
This power rotor periphery is provided with the ring magnet of multiple N, S magnetic pole of tool.
This power rotor is the moving body of tool guide slot, and this dynamical inducing part is the structure of the tool guide slot corresponding with this power rotor.
When this passive impeller of extraneous wind blows, this passive this power rotor of impeller priming produces electric power.
Without active control device in this passive impeller.
The present invention also proposes a kind of passive fan and comprises a fan frame, at least one passive impeller and at least one power rotor.This power rotor is in order to drive this passive wheel rotation.This passive impeller and this power rotor lay respectively at this fan frame inner and outer.
From the above, passive fan of the present invention uses the inner passive impeller not containing motor, then drive the mode of this passive impeller by the power rotor be not arranged in fan frame, operated to make the passive fan of the present invention.Now, because passive impeller does not need self-active rotation, therefore these passive impeller central authorities are without the setting of motor etc., and significantly can reduce that central calm wind area also significantly improves passive fan go out inlet air active area, and then significantly promote the heat dissipation of fan.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing fan;
Fig. 2 A is the schematic perspective view of the present invention first preferred embodiment passive fan;
Fig. 2 B is the schematic diagram of Fig. 2 A opposition side;
Fig. 2 C is the vertical cross-sectional schematic of Fig. 2 A;
Fig. 2 D is the power rotor of Fig. 2 B and the magnetic action schematic diagram of dynamical inducing part;
Fig. 3 is the schematic diagram of the present invention second preferred embodiment passive fan;
Fig. 4 is the schematic diagram of the present invention the 3rd preferred embodiment passive fan;
Fig. 5 is the schematic diagram of the present invention the 4th preferred embodiment passive fan;
Fig. 6 is the fan performance plotted curve of passive fan of the present invention and existing fan.
Component symbol illustrates:
1: fan 11: impeller
111,321: flabellum 12: motor
13,31,41: fan frame 3,3a, 3b, 4 passive fans
311: framework 312: rib
313: central siphon portion 3131: bearing
32,32a, 32b, 42: passive impeller
322: wheel hub 323,323a, 323b: dynamical inducing part
3231: magnetic 331: ring magnet
324: rotating shaft
33,33a, 33b, 43: power rotor
34: drive mechanism
Embodiment
Hereinafter with reference to relevant drawings, a kind of passive fan according to present pre-ferred embodiments is described, wherein identical element is illustrated with identical reference marks.
Please refer to shown in Fig. 2 A and Fig. 2 C, the passive fan 3 of present pre-ferred embodiments comprises a fan frame 31, at least one passive impeller 32 and at least one power rotor 33.This passive fan 3 can be axial flow fan, also can be centrifugal fan.
This fan frame 31 has a framework 311, at least one rib 312 and a central siphon portion 313, and this rib 312 links this central siphon portion 313 and this framework 311.This rib 312 quantity, depending on actual demand, can be 1, also can be more than 2 or 2.
This passive impeller 32 is arranged in this framework 311, and is set in this central siphon portion 313.And this passive impeller 32 has multiple flabellum 321, wheel hub 322, rotating shaft 324 and at least one dynamical inducing part 323, be wherein preferably the active control device do not arranged as motor etc. in this passive impeller 32.Because this passive impeller 32 does not have active control device, therefore do not need the space of reserved rotor magnet, magnetic pole of the stator, control circuit board etc., and significantly increase the air inlet/outlet area of this passive impeller 32, the volume needed for magnetic pole of the stator need be provided in fan frame yet.So, when same size fans, maximum sized flabellum can be used and obtain maximum air inlet/outlet area, and then significantly promoting the radiating effect of fan.This passive impeller 32 can be magnetic transmission, friction driving or occlusion transmission by the mode of this power rotor 33 priming.
These flabellums 321 are located on this wheel hub 322 periphery, and this rotating shaft 324 is nested with in this central siphon portion 313, more arranges at least one bearing 3131 in this central siphon portion 313, rotate to support this rotating shaft 324.
This dynamical inducing part 323 is corresponding with this power rotor 33, and by 33 primings of this power rotor, and then drive this passive impeller 32 to rotate.This dynamical inducing part 323 can be around being arranged on this passive impeller 32 periphery, also can be arranged on these flabellum 321 outer rims.This dynamical inducing part 323 can be the structure etc. of the annular magnetic arrangement body of the many magnetic poles of tool, the structure of tool guide slot or the tool dentation structures such as the annular magnetizer of such as many magnetic poles annular permanent magnnet, coated many magnetic poles gonosome 3231.The shape of this dynamical inducing part 323 is such as annular, arc, polygonal or curved.In addition, this passive impeller 32 also can have magnetic for flabellum, and does not need this dynamical inducing part 323.
This power rotor 33 and this passive impeller 32 lay respectively at outside this fan frame with inner side, rotate in order to this passive impeller 32 of priming.This power rotor 33 can be separate motors, driver, runner or driving gear.This power rotor 33 can only be arranged on outside this corner, framework 311 side or this framework 311.Can contact with each other between this power rotor 33 and this passive impeller 32, also can be not in contact with each other.
In this preferred embodiment, please refer to shown in Fig. 2 D, this power rotor 33 periphery is provided with the ring magnet 331 of multiple N, S magnetic pole of tool, has magnetic force between this ring magnet 331 and this dynamical inducing part 323.When this power rotor 33 rotates, this dynamical inducing part 323 namely because of aforementioned magnetic force by priming, and then drive this passive impeller 32 to rotate.Aforementioned magnetic force can be magnetic attraction, magnetic repulsion or have the magnetic force that magnetic and magnetic scolds concurrently.
Please refer to the present invention second preferred embodiment shown in Fig. 3, this preferred embodiment passive fan 3a and above-mentioned first preferred embodiment passive fan 3 difference are that power rotor 33a is the moving body of tool guide slot, and the dynamical inducing part 323a of passive impeller 32a then changes the structure of the tool guide slot corresponding with this power rotor 33a into.This power rotor 33a is such as driver or the runner of tool guide slot.Now, this power rotor 33a and this dynamical inducing part 323a by a drive mechanism 34 mutual interlock.This drive mechanism 34 can be belt, chain or other shoestring.Now, this power rotor 33a and this dynamical inducing part 323a can contact with each other, and also can be not in contact with each other.
Please refer to the present invention shown in Fig. 4 the 3rd preferred embodiment, the difference of this preferred embodiment passive fan 3b and the passive fan 3 of above-mentioned first preferred embodiment is that power rotor 33b is driving gear, and the dynamical inducing part 323b of passive impeller 32b then changes the structure of the straight-tooth spur wheel corresponding with this power rotor 33b, spiral spur gear, herringbone gear, pin gear or tool dentation structure into.Now, this power rotor 33b directly can be engaged with this dynamical inducing part 323b or be indirectly engaged by another respective gear wheels (drive mechanism).Now, this power rotor 33b and this dynamical inducing part 323b can contact with each other, and also can be not in contact with each other.
Though above-described embodiment uses a power rotor to drive a passive wheel rotation, the present invention also can use a power rotor to drive multiple passive wheel rotation, uses multiple power rotor to drive a passive wheel rotation or use multiple power rotor to drive multiple passive wheel rotation.
Please refer to the passive fan 4 of the present invention shown in Fig. 5 the 4th preferred embodiment, this passive fan 4 comprises the passive impeller 42 of a fan frame 41, four and a power rotor 43, and it is the enforcement state that a power rotor 43 drives four passive impellers 42.By this power rotor 43 being arranged on the central authorities of this fan frame 41, this power rotor 43 just can simultaneously, drive these passive impellers 42 to rotate respectively or sequentially.This power rotor 43 can adopt above-mentioned any one power rotor, and these passive impellers 42 are the form corresponding with this power rotor 43.Now, passive fan 4 can obtain more air quantity than existing fan.
Please refer to shown in Fig. 6, it is the fan performance plotted curve of passive fan of the present invention and existing fan.In this figure, X-axis represents air quantity (unit: cubic meter (M per minute
3/ min)), Y-axis represents blast (unit: mm H
2o).When identical overall dimensions and noise, existing fan is have the fan strengthening flabellum, and passive fan of the present invention is then the state that a power rotor drives two impellers.As shown in Figure 6, when same size and noise, the characteristic of the blast that passive fan of the present invention exports and air quantity is good compared with prior art.And passive fan of the present invention can avoid existing fan because flabellum is long weak and shortcomings such as frangibility of beat, temperature distortion and structural strength easily.
In addition, though above-described embodiment is described by power rotor priming for passive impeller, but not as limit, aforementioned passive fan also can produce electric power by priming power rotor via an extraneous wind blows passive impeller.
From the above, passive fan of the present invention uses the inner passive impeller not containing motor, then drive the mode of this passive impeller by the power rotor be not arranged in fan frame, operated to make the passive fan of the present invention.Now, because passive impeller does not need self-active rotation, therefore these passive impeller central authorities are without the setting of motor etc., and significantly can reduce that central calm wind area also significantly improves passive fan go out inlet air active area, and then significantly promote the heat dissipation of fan.
The foregoing is only illustrative, but not be restricted person.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be included in accompanying claim.
Claims (12)
1. a passive fan, comprising:
One fan frame, this fan frame has a framework, at least one rib and a central siphon portion, and this rib links this central siphon portion and this framework;
At least one passive impeller, be arranged in this fan frame, this passive impeller comprises multiple flabellum, a rotating shaft and at least one dynamical inducing part, this rotating shaft is nested with in this central siphon portion, arrange in this central siphon portion at least one bearing with support this rotating shaft rotate, this dynamical inducing part have many magnetic poles magnetic texure body and around being arranged at this passive impeller periphery or the plurality of flabellum outer rim; And
At least one power rotor, its periphery is provided with the magnet of multiple N, S magnetic pole, be arranged on this passive wheel rotation of magnetic force priming on fan frame, and this passive impeller and this power rotor independently configures, and
Wherein this passive impeller has multiple flabellum, this dynamical inducing part around being arranged on this passive impeller periphery or these flabellum outer rims,
Wherein this power rotor is arranged on this corner, fan frame side.
2. a passive fan, comprising:
One fan frame, this fan frame has a framework, at least one rib and a central siphon portion, and this rib links this central siphon portion and this framework;
At least one passive impeller, be arranged in this fan frame, this passive impeller comprises multiple flabellum, a rotating shaft and at least one dynamical inducing part, this rotating shaft is nested with in this central siphon portion, arrange at least one bearing in this central siphon portion to rotate to support this rotating shaft, this dynamical inducing part is around being arranged at this passive impeller periphery or the plurality of flabellum outer rim; And
One single power rotor, be arranged at this passive wheel rotation of priming on fan frame, and this passive impeller and this rotary rotor independently configures,
Wherein this power rotor is arranged on this corner, fan frame side.
3. passive fan as claimed in claim 1 or 2, wherein when passive impeller is multiple, this power rotor drives these passive wheel rotation.
4. passive fan as claimed in claim 3, wherein this power rotor simultaneously, drive these passive wheel rotation respectively or sequentially.
5. passive fan as claimed in claim 1 or 2, wherein when power rotor is multiple, these power rotors drive this passive wheel rotation jointly.
6. passive fan as claimed in claim 1 or 2, wherein when impeller and power rotor are multiple, these power rotors drive these passive wheel rotation respectively.
7. passive fan as claimed in claim 1 or 2, wherein this power rotor is separate motors, driver or runner.
8. passive fan as claimed in claim 1, wherein this dynamical inducing part is the structure of many magnetic poles annular permanent magnnet, the annular magnetizer of coated many magnetic poles gonosome, the structure of tool guide slot or tool dentation structure.
9. passive fan as claimed in claim 1 or 2, wherein this power rotor periphery is provided with the ring magnet of multiple N, S magnetic pole of tool.
10. passive fan as claimed in claim 1, wherein this power rotor is the moving body of tool guide slot, and this dynamical inducing part is the structure of the tool guide slot corresponding with this power rotor.
11. passive fans as claimed in claim 1, wherein when this passive impeller of extraneous wind blows, this passive this power rotor of impeller priming produces electric power.
12. passive fans as claimed in claim 1, wherein this passive impeller is interior without active control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410524292.9A CN104314844A (en) | 2007-07-06 | 2007-07-06 | Passive fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410524292.9A CN104314844A (en) | 2007-07-06 | 2007-07-06 | Passive fan |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101283351A Division CN101338762A (en) | 2007-07-06 | 2007-07-06 | Passive fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104314844A true CN104314844A (en) | 2015-01-28 |
Family
ID=52370131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410524292.9A Pending CN104314844A (en) | 2007-07-06 | 2007-07-06 | Passive fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314844A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151071A (en) * | 2015-03-30 | 2016-11-23 | 林圣梁 | Magnetic suspension fan device |
| CN110658668A (en) * | 2018-06-29 | 2020-01-07 | 青岛海信激光显示股份有限公司 | Fluorescent wheel device and projection display system |
| CN110658666A (en) * | 2018-06-29 | 2020-01-07 | 青岛海信激光显示股份有限公司 | Optical engine and projection display system |
| CN111249670A (en) * | 2020-03-11 | 2020-06-09 | 永康市华格工业产品设计有限公司 | Internal heat dissipation mechanism of bicycle flywheel and control method thereof |
| CN114688050A (en) * | 2020-12-25 | 2022-07-01 | 义乌市鼎邦文体用品有限公司 | Combined fan device |
| US11884128B2 (en) | 2017-12-18 | 2024-01-30 | Carrier Corporation | Fan stator construction to minimize axial depth |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482700A (en) * | 1974-10-09 | 1977-08-10 | Berry Sa Ets | Bladed wheel fans |
| US20020106286A1 (en) * | 2001-02-02 | 2002-08-08 | Davis James L. | Barrel fan with enclosed motor |
| JP2005083487A (en) * | 2003-09-09 | 2005-03-31 | Yaskawa Electric Corp | Magnetic geneva toothed gear mechanism |
| JP2006132614A (en) * | 2004-11-04 | 2006-05-25 | Nippon Pulse Motor Co Ltd | Drive transmission mechanism |
| CN1900529A (en) * | 2005-07-19 | 2007-01-24 | 谢发连 | Magnetic driven multiple shaft fan and its power transport system |
-
2007
- 2007-07-06 CN CN201410524292.9A patent/CN104314844A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1482700A (en) * | 1974-10-09 | 1977-08-10 | Berry Sa Ets | Bladed wheel fans |
| US20020106286A1 (en) * | 2001-02-02 | 2002-08-08 | Davis James L. | Barrel fan with enclosed motor |
| JP2005083487A (en) * | 2003-09-09 | 2005-03-31 | Yaskawa Electric Corp | Magnetic geneva toothed gear mechanism |
| JP2006132614A (en) * | 2004-11-04 | 2006-05-25 | Nippon Pulse Motor Co Ltd | Drive transmission mechanism |
| CN1900529A (en) * | 2005-07-19 | 2007-01-24 | 谢发连 | Magnetic driven multiple shaft fan and its power transport system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151071A (en) * | 2015-03-30 | 2016-11-23 | 林圣梁 | Magnetic suspension fan device |
| US11884128B2 (en) | 2017-12-18 | 2024-01-30 | Carrier Corporation | Fan stator construction to minimize axial depth |
| CN110658668A (en) * | 2018-06-29 | 2020-01-07 | 青岛海信激光显示股份有限公司 | Fluorescent wheel device and projection display system |
| CN110658666A (en) * | 2018-06-29 | 2020-01-07 | 青岛海信激光显示股份有限公司 | Optical engine and projection display system |
| CN110658666B (en) * | 2018-06-29 | 2022-02-01 | 青岛海信激光显示股份有限公司 | Optical engine and projection display system |
| CN110658668B (en) * | 2018-06-29 | 2022-02-01 | 青岛海信激光显示股份有限公司 | Fluorescent wheel device and projection display system |
| CN111249670A (en) * | 2020-03-11 | 2020-06-09 | 永康市华格工业产品设计有限公司 | Internal heat dissipation mechanism of bicycle flywheel and control method thereof |
| CN111249670B (en) * | 2020-03-11 | 2021-05-07 | 永康市华格工业产品设计有限公司 | Internal heat dissipation mechanism of bicycle flywheel and control method thereof |
| CN114688050A (en) * | 2020-12-25 | 2022-07-01 | 义乌市鼎邦文体用品有限公司 | Combined fan device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
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| RJ01 | Rejection of invention patent application after publication |