US20080138194A1 - Frame Structure Of A Cooling Fan, The Cooling Fan And Heat Generating Device Having The Fan - Google Patents
Frame Structure Of A Cooling Fan, The Cooling Fan And Heat Generating Device Having The Fan Download PDFInfo
- Publication number
- US20080138194A1 US20080138194A1 US11/849,479 US84947907A US2008138194A1 US 20080138194 A1 US20080138194 A1 US 20080138194A1 US 84947907 A US84947907 A US 84947907A US 2008138194 A1 US2008138194 A1 US 2008138194A1
- Authority
- US
- United States
- Prior art keywords
- frame structure
- cooling fan
- active anti
- air outlet
- dust baffle
- 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.)
- Abandoned
Links
Images
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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- 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
- F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
- F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/2019—Fan safe systems, e.g. mechanical devices for non stop cooling
Definitions
- the subject invention relates to a frame structure for use in a cooling fan, the cooling fan and a heat generating device having the fan; specifically, it relates to a frame structure for use in a cooling fan to prevent outside objects from entrance, the cooling fan and a heat generating device having the fan.
- FIG. 1 schematically illustrates a cooling system often used in electrical and mechanical equipments.
- the cooling system mainly uses cooling fan assemblies that are independently configured in the wind tunnel inside the electrical and mechanical equipment for heat dissipation.
- an outlet with honeycomb baffles is disposed in the housing of the electrical and mechanical equipment opposite to the cooling fan assembly.
- the heat generated by the electrical and mechanical equipment can be exhausted out (as indicated by the arrow in FIG. 1 ) via the outlet by means of the cooling fan assembly.
- the honeycomb baffle of the outlet not only provides a fluidical connection of the electrical and mechanical equipment with the outside, but also prevents outside objects entering the equipment and damaging the cooling fan assembly and the components inside the equipment.
- the cooling fan assembly is shut down, small outside objects, such as dust, paper pieces, and leaves, can still get into the electrical and mechanical equipment via the gaps between the slots of the honeycomb baffles and the blades of the cooling fan assembly and cause damages. If the outside objects are larger and cannot get into the equipment, they can still easily attach onto the honeycomb baffles and degrade the cooling efficiency.
- the cooling fan assemblies are fluidically connected to each other. If one of the cooling fan assemblies breaks down and ceases operation, the exhausted heat can be sucked back into the equipment via the cooling fan assembly because the other cooling fan assemblies are still in operation. This occurrence is also known as the “heat reverse” effect. As a result of this effect, the overall cooling efficiency of the equipment degrades.
- a common method for solving the abovementioned problems is to configure a sponge net as a filter in front of each outlet in the electrical and mechanical equipment to enhance the sealing of the outlet and to prevent smaller outside objects from entering therein.
- the sponge filtering net will increase the resistance of heated gas flow and decrease the overall cooling efficiency accordingly.
- the sponge filtering net is not as effective at high temperatures.
- An objective of the subject invention is to provide a frame structure for use in a cooling fan that not only prevents dust from entering, but also does not generate a large resistance to the heated gas flow.
- the subject invention provides a frame structure for use in a cooling fan.
- the frame structure comprises a body which comprises an air inlet and an air outlet, wherein the frame structure further comprises at least one active anti-dust baffle, adapted to rotate to a closed position to at least partially cover the air outlet when the cooling fan is shut down.
- Another objective of the subject invention is to provide a cooling fan for use in a heat generating device, wherein the cooling fan comprises the aforementioned frame structure.
- Yet another objective of the subject invention is to provide a heat generating device comprising a cooling fan, wherein the cooling fan comprises the aforementioned frame structure.
- the anti-dust baffles of the frame structure disclosed by the subject invention can automatically close the air outlet to prevent dust or other foreign objects from getting inside the equipment when the cooling fan is shut down either by their weight or by external forces such as electrical forces and manpower. If several cooling fan are assembled together and one of them breaks down, the anti-dust baffle of the inoperable cooling fan automatically rotates into a closed position to partially cover the air outlet. Even though the other cooling fans are still operating normally; the heated gas flow generated and exhausted by the equipment won't flow back into the equipment via the inoperable cooling fan.
- FIG. 1 schematically illustrates a conventional electrical and mechanical equipment with a cooling fan
- FIG. 2A schematically illustrates the frame structure of a cooling fan in the preferred embodiment of the subject invention
- FIG. 2B schematically illustrates the side view of a cooling fan's frame structure in the preferred embodiment of the subject invention
- FIG. 3 schematically illustrates active anti-dust baffles with different contours in the preferred embodiment of the subject invention
- FIG. 4A schematically illustrates the operation of a cooling fan with the frame structure in the preferred embodiment of the subject invention
- FIG. 4B schematically illustrates another view of FIG. 4A ;
- FIG. 5 schematically illustrates a heat generating device with a plurality of cooling fans in the preferred embodiment of the subject invention.
- FIG. 2A and FIG. 2B schematically illustrate a frame structure 20 for use in a cooling fan 10 disclosed by the subject invention.
- the frame structure 20 comprises a body 22 and a containing space inside the body 22 for housing the cooling fan 10 .
- the body 22 includes an air inlet 24 and an air outlet 26 configured on both sides of the cooling fan, respectively, for providing a pathway for heated gas flow exhaustion.
- FIG. 3 shows that the frame structure 20 further comprises at least one active anti-dust baffle 28 configured adjacent to the air outlet 26 .
- the body 22 comprises at least one set of assembling holes 30 , disposed along the inner or outer peripheral of the air outlet 26 . If the assembling holes 30 are disposed along the inner peripheral adjacent to the air outlet 26 , the body 22 of the frame structure 20 has a wider peripheral structure adjacent to the air outlet 26 (as shown in the BB line of FIG. 2A and FIG. 2B ) than the one adjacent to the air inlet 24 (as shown in the AA line of FIG. 2A and FIG. 2B ). The peripheral location facilitates the installation of the assembling holes 30 and disposition of the active anti-dust baffle 28 in front of the air outlet 26 .
- the frame structure 20 comprises at least one active anti-dust baffle to conform to the contour of the air outlet 26 .
- the frame structure 20 comprises three baffles 28 .
- Each of the active anti-dust baffles comprises two pin axes 32 disposed on the upper end of two sides thereof. The length of the pin axes 32 can be adjusted to fit the assembly hole 30 so that the active anti-dust baffle 28 can be individually fastened to the set of assembling holes 30 for anti-dust baffle rotation about the pin axes 32 in front of the air outlet 26 .
- the active anti-dust baffle 28 can be made of any appropriate material. Preferably, an active anti-dust baffle made of light and rigid materials with small friction coefficients would be most ideal.
- the actual shape of the active anti-dust baffle 28 can be adjusted so that the edges of the opposite ends thereof are configured to substantially conform to the contour of the air outlet 26 of the frame structure.
- FIG. 4A and FIG. 4B schematically illustrates the active anti-dust baffles 28 after configuration to the frame structure 20 . As the cooling fan 10 operates, the gas flow generated therein (as indicated by the arrow shown in FIG. 4A and FIG. 4B ) will push the active anti-dust baffles 28 to rotate outward and upward.
- the air outlet 26 is then opened so that the heated gas flow can be exhausted via the air outlet 26 .
- the temperature inside the electrical and mechanical equipment can be maintained within a proper range for normal operation thereof.
- the active anti-dust baffles 28 are adapted to rotate into a closed position to at least partially or substantially completely cover the air outlet 26 . This coverage prevents foreign objects from getting into the equipment.
- the active anti-dust baffle 28 is adapted to be operated by its weight. That is, when the exhausted gas flow of the cooling fan 10 is no longer present, the force of gravity will pull down and shut the active anti-dust baffle 28 so that the baffle 28 is able to automatically move to the desired closed position.
- FIG. 5 schematically illustrates a cooling fan assembly comprising a plurality of frame structures in a real embodiment of the subject invention.
- the cooling fan assembly can be equipped in projectors, data storage media, personal computers, servers or the like. If one or several cooling fans operate abnormally, the active anti-dust baffles 28 of the frame structure in the inoperable cooling fan will automatically close the outlet thereof, while the other cooling fans will maintain normal operation to exhaust heat out of the equipment (as shown by the arrow in FIG. 5 ). Because the baffles 28 close the inoperable cooling fan, the problem of the prior art in which exhausted heat pours back into the equipment can be resolved.
- an electric controlling device (not shown) can drive the active anti-dust baffles to automatically rotate into the closed position when the cooling fan shuts down.
- the active anti-dust baffles can be manually closed when the cooling fan shuts down.
- the frame structure of the subject invention can be applied to any equipment which needs to dissipate heat.
- the frame structure can be directly assembled into the cooling fan, which is then integrated into the equipment.
- the equipment can be controlled within a proper operation temperature range and prevent foreign objects from getting into the equipment.
- the life cycle thereof can be extended consequently.
- the frame structure can also be integrated directly into the heat generating device with an internal heat source (such as lamps, hard disks with high revolution speed or CPU). That is, the frame structure need not be assembled into the cooling fan for integration into the heat generating device. More specifically, the frame structure can be configured in the heat generating device adjacent to a fan originally installed therein.
- the active anti-dust baffle of the frame structure can be opened using the wind power generated by the fan inside the heat generating device and can be closed after the fan shuts down.
- the heat generating device comprises a housing 40 which includes a sidewall 41 . Cooling fans are disposed inside the housing 40 and adjacent to the sidewall 41 .
- the active anti-dust baffles 28 can be disposed on the housing to cool and block foreign objects.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095221793U TWM315007U (en) | 2006-12-11 | 2006-12-11 | Frame structure of a cooling fan, the cooling fan and heat generating device having the fan |
TW095221793 | 2006-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080138194A1 true US20080138194A1 (en) | 2008-06-12 |
Family
ID=38580497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/849,479 Abandoned US20080138194A1 (en) | 2006-12-11 | 2007-09-04 | Frame Structure Of A Cooling Fan, The Cooling Fan And Heat Generating Device Having The Fan |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080138194A1 (de) |
JP (1) | JP3130935U (de) |
DE (1) | DE202007009684U1 (de) |
TW (1) | TWM315007U (de) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090109406A1 (en) * | 2007-10-26 | 2009-04-30 | Hon Hai Precision Industry Co., Ltd. | Projector |
US20120014807A1 (en) * | 2010-07-13 | 2012-01-19 | Qiang Liang | Dustproof axial-flow fan device |
US20120044463A1 (en) * | 2010-08-17 | 2012-02-23 | Seiko Epson Corporation | Exhaust port shutter apparatus and projector |
US20120086918A1 (en) * | 2010-10-12 | 2012-04-12 | Seiko Epson Corporation | Projection display device and method for controlling the same |
USD829320S1 (en) * | 2016-12-27 | 2018-09-25 | Toyoda Gosei Co., Ltd. | Air outlet of air conditioner for vehicle |
USD852941S1 (en) * | 2017-03-22 | 2019-07-02 | Wirth Research Limited | Air flow deflector |
CN112865819A (zh) * | 2021-02-02 | 2021-05-28 | 深圳市福瑞仕科技有限公司 | 一种便携式5g信号发射器 |
US11022131B2 (en) * | 2010-07-29 | 2021-06-01 | Dell Products L.P. | Dual operation centrifugal fan apparatus and methods of using same |
US11384773B2 (en) * | 2020-01-14 | 2022-07-12 | Seagate Technology Llc | Air flow control in data storage systems |
US11382457B2 (en) | 2020-09-21 | 2022-07-12 | Premier Specialty Brands LLC | Integrated kamado-style grill and smoker |
US11644197B2 (en) | 2020-11-20 | 2023-05-09 | Spider Grills, Llc | System and method for bimodal air control in a kettle-style grill |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI391566B (zh) * | 2010-02-02 | 2013-04-01 | Sunonwealth Electr Mach Ind Co | 防逆流扇框 |
DE202013104384U1 (de) * | 2013-09-26 | 2015-01-08 | Bärbel Burkhardt-Ganter | Vorrichtung zur Erzeugung von Luftströmungen, insbesondere Windmaschine für fotographische oder filmische Zwecke |
CN112003166B (zh) * | 2020-08-27 | 2022-05-10 | 合肥泰瑞通电力科技有限公司 | 一种微机综合保护装置 |
CN113873798A (zh) * | 2021-08-31 | 2021-12-31 | 浙江大华技术股份有限公司 | 防尘组件以及电子设备 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793610A (en) * | 1996-01-25 | 1998-08-11 | Dell Usa, L.P. | Multi-position air regulation device |
US6005770A (en) * | 1997-11-12 | 1999-12-21 | Dell U.S.A., L.P. | Computer and a system and method for cooling the interior of the computer |
US6011689A (en) * | 1998-04-27 | 2000-01-04 | Sun Microsystems, Inc. | Computer component cooling fan closure device and method thereof |
US6115250A (en) * | 1998-01-20 | 2000-09-05 | Dell Usa, Lp | Computer and an assembly and method for cooling a computer |
US6229701B1 (en) * | 1999-07-26 | 2001-05-08 | Compal Electronics, Inc. | Portable computer with heat dissipating device |
US6587340B2 (en) * | 2001-04-10 | 2003-07-01 | Sun Microsystems, Inc. | Maintaining cooling efficiency during air mover failure |
US7025086B2 (en) * | 2002-03-07 | 2006-04-11 | Fujitsu Limited | Reverse flow preventing device and electronic apparatus |
US20080056900A1 (en) * | 2006-09-05 | 2008-03-06 | Siegfried Seidler | Fan with integrated nonreturn flaps |
-
2006
- 2006-12-11 TW TW095221793U patent/TWM315007U/zh not_active IP Right Cessation
-
2007
- 2007-02-02 JP JP2007000565U patent/JP3130935U/ja not_active Expired - Fee Related
- 2007-07-11 DE DE202007009684U patent/DE202007009684U1/de not_active Expired - Lifetime
- 2007-09-04 US US11/849,479 patent/US20080138194A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793610A (en) * | 1996-01-25 | 1998-08-11 | Dell Usa, L.P. | Multi-position air regulation device |
US6005770A (en) * | 1997-11-12 | 1999-12-21 | Dell U.S.A., L.P. | Computer and a system and method for cooling the interior of the computer |
US6115250A (en) * | 1998-01-20 | 2000-09-05 | Dell Usa, Lp | Computer and an assembly and method for cooling a computer |
US6011689A (en) * | 1998-04-27 | 2000-01-04 | Sun Microsystems, Inc. | Computer component cooling fan closure device and method thereof |
US6229701B1 (en) * | 1999-07-26 | 2001-05-08 | Compal Electronics, Inc. | Portable computer with heat dissipating device |
US6587340B2 (en) * | 2001-04-10 | 2003-07-01 | Sun Microsystems, Inc. | Maintaining cooling efficiency during air mover failure |
US7025086B2 (en) * | 2002-03-07 | 2006-04-11 | Fujitsu Limited | Reverse flow preventing device and electronic apparatus |
US20080056900A1 (en) * | 2006-09-05 | 2008-03-06 | Siegfried Seidler | Fan with integrated nonreturn flaps |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7837335B2 (en) * | 2007-10-26 | 2010-11-23 | Hon Hai Precision Industry Co., Ltd. | Projector |
US20090109406A1 (en) * | 2007-10-26 | 2009-04-30 | Hon Hai Precision Industry Co., Ltd. | Projector |
US20120014807A1 (en) * | 2010-07-13 | 2012-01-19 | Qiang Liang | Dustproof axial-flow fan device |
US8608431B2 (en) * | 2010-07-13 | 2013-12-17 | Asia Vital Components Co., Ltd. | Dustproof axial-flow fan device |
US11022131B2 (en) * | 2010-07-29 | 2021-06-01 | Dell Products L.P. | Dual operation centrifugal fan apparatus and methods of using same |
US20120044463A1 (en) * | 2010-08-17 | 2012-02-23 | Seiko Epson Corporation | Exhaust port shutter apparatus and projector |
US8974063B2 (en) * | 2010-08-17 | 2015-03-10 | Seiko Epson Corporation | Exhaust port shutter apparatus and projector |
US20120086918A1 (en) * | 2010-10-12 | 2012-04-12 | Seiko Epson Corporation | Projection display device and method for controlling the same |
USD829320S1 (en) * | 2016-12-27 | 2018-09-25 | Toyoda Gosei Co., Ltd. | Air outlet of air conditioner for vehicle |
USD852941S1 (en) * | 2017-03-22 | 2019-07-02 | Wirth Research Limited | Air flow deflector |
US11384773B2 (en) * | 2020-01-14 | 2022-07-12 | Seagate Technology Llc | Air flow control in data storage systems |
US11382457B2 (en) | 2020-09-21 | 2022-07-12 | Premier Specialty Brands LLC | Integrated kamado-style grill and smoker |
US11819161B2 (en) | 2020-09-21 | 2023-11-21 | Premier Specialty Brands LLC | Integrated kamado-style grill and smoker |
US11644197B2 (en) | 2020-11-20 | 2023-05-09 | Spider Grills, Llc | System and method for bimodal air control in a kettle-style grill |
US11852346B2 (en) | 2020-11-20 | 2023-12-26 | Spider Grills, Llc | System and method for bimodal air control in a kettle-style grill |
CN112865819A (zh) * | 2021-02-02 | 2021-05-28 | 深圳市福瑞仕科技有限公司 | 一种便携式5g信号发射器 |
Also Published As
Publication number | Publication date |
---|---|
DE202007009684U1 (de) | 2007-10-11 |
TWM315007U (en) | 2007-07-01 |
JP3130935U (ja) | 2007-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DELTA ELECTRONICS, INC., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WEI, ZHENQING;WANG, XUPENG;ZHOU, KEVIN;AND OTHERS;REEL/FRAME:019774/0988;SIGNING DATES FROM 20060604 TO 20070604 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |