US20100054920A1 - Fan assembly - Google Patents
Fan assembly Download PDFInfo
- Publication number
- US20100054920A1 US20100054920A1 US12/202,407 US20240708A US2010054920A1 US 20100054920 A1 US20100054920 A1 US 20100054920A1 US 20240708 A US20240708 A US 20240708A US 2010054920 A1 US2010054920 A1 US 2010054920A1
- Authority
- US
- United States
- Prior art keywords
- fan
- frame
- cover
- fan assembly
- protrusions
- 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
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
Definitions
- the present invention generally relates to a fan assembly and particularly to a fan assembly having a fan guard protecting the fan from contamination and damage during operation.
- Fans are widely used in many systems which generate heat and need to maintain a normal working temperature. Often, fans are mounted to the systems via fan holders.
- a conventional fan assembly includes a fan and a fan duct attached thereto.
- the fan commonly includes an airflow inlet and an airflow outlet.
- the airflow outlet faces a heat sink and the airflow inlet faces the fan duct so that the airflow produced by the fan flows along a predetermined direction from the fan duct to the heat sink.
- the blades of the fan are exposed and rotate rapidly when the fan is operated, and are thus easily subject to contamination, as well as potentially dangerous to contact during operation.
- a fan assembly includes a fan and a fan guard positioned thereon to protect the fan from contamination and damage during operation.
- the fan includes a plurality of upper corners extending outwardly therefrom.
- the fan guard includes a frame and a cover covering and fastened to the frame.
- the frame includes a plurality of protrusions extending downwardly therefrom and a plurality of fastening feet extending upwardly therefrom. The protrusions engage the upper corners of the fan to secure the frame to the fan.
- the cover comprises a spring component surrounding a bottom thereof and located to have a resilient engagement with the fastening feet of the frame.
- a plurality of porous are defined in the cover for airflow produced by the fan to pass therethrough, wherein the cover of the fan guard can protect the fan from contamination and damage during operation.
- FIG. 1 is an isometric, exploded view of a fan assembly in accordance with a preferred embodiment of the present invention.
- FIG. 2 is an assembled view of FIG. 1 .
- FIG. 3 is an enlarged view of a frame of FIG. 1 , viewed from an opposite aspect.
- the fan assembly has a fan 10 and a fan guard 20 secured to the fan 10 to protect the fan 10 from contamination and damage during operation.
- the fan 10 comprises a hollow body 12 and a motor 14 received in the body 12 .
- the body 12 is square with four lower corners 122 , and four upper corners 124 extending outwardly and horizontally therefrom.
- the lower corners 122 are spaced from and opposite to the upper corners 124 .
- a mounting hole 120 is defined in each of the lower and upper corners 122 , 124 and the mounting holes 120 of the upper corners 124 engage the fan guard 20 .
- the fan guard 20 has a frame 22 and a cover 24 covering and tightly fastened to the frame 22 .
- the frame 22 is square and defines an opening (not labeled) in a center thereof, provided for airflow from fan 10 .
- Four flanges 220 extend outwardly and horizontally from each corner of the frame 22 .
- Four protrusions 222 extend perpendicularly and downwardly from a lower face of the flanges 220 of the frame 22 .
- the protrusions 222 correspond to the mounting holes 120 of the upper corners 124 of the fan 10 , respectively, for insertion thereinto.
- a plurality of engaging ribs 2220 are formed on an outer sidewall along an axis of each of the protrusions 222 and evenly spaced from each other along a circumference of each of the protrusions 222 .
- the engaging ribs 2220 engage an inner surface of a corresponding upper corner 124 of the fan 10 surrounding the mounting hole 120 of the corresponding upper corner 124 of the fan 10 .
- a pair of rectangular slots 224 are defined in the lower face of each of the flanges 220 , symmetrical to each other relative to each of the protrusions 222 , thereby allowing a tool to engage the lower face of each of the flanges 220 of the frame 22 of the fan guard 20 , for removal of the frame 22 from the fan 10 .
- the fastening feet 226 extend upwardly from an inner circumference of the frame 22 , engaging the cover 24 .
- the fastening feet 226 are interconnected with each other via an annual rib 225 , above and parallel to the flanges 220 .
- a plurality of radiating ribs 227 extends radially and inwardly from the annual rib 225 towards the center of the frame 22 , interconnected via a ring (not labeled) to surround a circular hole in the center of the frame 22 .
- the radiating ribs 227 divide the opening of the frame 22 into several parts.
- the cover 24 is gauze or netting and defines a plurality of pores 240 therein, allowing passage of airflow from fan 10 whilst protecting the fan 10 from contamination when airflow passes through the cover 24 . Moreover, the cover 24 protects the fan 10 from damage during operation.
- the cover 24 comprises a spring component, such as an annular spring 242 surrounding a bottom of the cover 24 and attached to the cover 24 .
- the annular spring 242 exerts force to impel the bottom of the cover 24 onto and attached to the fastening feet 226 of the frame 22 ; the cover 24 is thus tightly and resiliently positioned on the frame 22 .
- the cover 24 of the fan guard 20 is gauze or netting and thus can also reduce noise produced by the fan 10 .
- the protrusions 222 of the frame 22 of the fan guard 20 enter the mounting holes 120 of the upper corners 124 of the fan 10 and the fan guard 20 is firmly positioned on the fan 10 .
- the engaging ribs 2220 of the protrusions 222 of the frame 22 of the fan guard 20 tightly abut the inner surfaces of the upper corners 124 surrounding the mounting holes 120 of the upper corners 124 of the fan 10 , wherein the protrusions 222 of the fan guard 20 are fully engaged by the upper corners 124 of the fan 10 , firmly securing the fan guard 20 to the fan 10 .
- the frame 22 of the fan guard 20 is raised upwardly when a force applied to the slot 224 of the frame 22 of the fan guard 20 moves to disengage the protrusions 222 of the frame 22 from the upper corners 124 of the fan 10 .
- disassembly of the fan guard 20 from the fan 10 is also simplified.
- the airflow produced by the fan 10 passes through the cover 24 of the fan guard 20 towards the fan 10 , whilst the fan guard 20 installed on the fan 10 protects the motor 14 from contamination and damage during operation.
Abstract
A fan assembly includes a fan and a fan guard positioned on the fan to protect the fan from contamination and damage during operation. The fan includes a plurality of upper corners extending outwardly therefrom. The fan guard includes a frame and a cover covering and fastened to the frame. The frame includes a plurality of protrusions extending downwardly therefrom and a plurality of fastening feet extending upwardly therefrom. The protrusions engage the upper corners of the fan, securing the frame to the fan. The cover comprises a spring component surrounding a bottom thereof, resiliently engaging the fastening feet of the frame. A plurality of pores are defined in the cover, allowing airflow produced by the fan therethrough, wherein the fan guard protects the fan from contamination and damage during operation.
Description
- 1. Field of the Invention
- The present invention generally relates to a fan assembly and particularly to a fan assembly having a fan guard protecting the fan from contamination and damage during operation.
- 2. Description of Related Art
- Fans are widely used in many systems which generate heat and need to maintain a normal working temperature. Often, fans are mounted to the systems via fan holders.
- A conventional fan assembly includes a fan and a fan duct attached thereto. The fan commonly includes an airflow inlet and an airflow outlet. The airflow outlet faces a heat sink and the airflow inlet faces the fan duct so that the airflow produced by the fan flows along a predetermined direction from the fan duct to the heat sink. However, the blades of the fan are exposed and rotate rapidly when the fan is operated, and are thus easily subject to contamination, as well as potentially dangerous to contact during operation.
- Therefore, what is needed is a fan assembly having a fan and a fan guard that overcomes the shortcomings described.
- According to a preferred embodiment of the present invention, a fan assembly includes a fan and a fan guard positioned thereon to protect the fan from contamination and damage during operation. The fan includes a plurality of upper corners extending outwardly therefrom. The fan guard includes a frame and a cover covering and fastened to the frame. The frame includes a plurality of protrusions extending downwardly therefrom and a plurality of fastening feet extending upwardly therefrom. The protrusions engage the upper corners of the fan to secure the frame to the fan. The cover comprises a spring component surrounding a bottom thereof and located to have a resilient engagement with the fastening feet of the frame. A plurality of porous are defined in the cover for airflow produced by the fan to pass therethrough, wherein the cover of the fan guard can protect the fan from contamination and damage during operation.
- Other advantages and novel features will become more apparent from the following detailed description of preferred embodiments when taken in conjunction with the accompanying drawings.
- Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is an isometric, exploded view of a fan assembly in accordance with a preferred embodiment of the present invention. -
FIG. 2 is an assembled view ofFIG. 1 . -
FIG. 3 is an enlarged view of a frame ofFIG. 1 , viewed from an opposite aspect. - Referring to
FIGS. 1-3 , a fan assembly in accordance with a preferred embodiment of the present invention is illustrated. The fan assembly has afan 10 and afan guard 20 secured to thefan 10 to protect thefan 10 from contamination and damage during operation. - The
fan 10 comprises ahollow body 12 and amotor 14 received in thebody 12. Thebody 12 is square with fourlower corners 122, and fourupper corners 124 extending outwardly and horizontally therefrom. Thelower corners 122 are spaced from and opposite to theupper corners 124. Amounting hole 120 is defined in each of the lower andupper corners mounting holes 120 of theupper corners 124 engage thefan guard 20. - The
fan guard 20 has aframe 22 and acover 24 covering and tightly fastened to theframe 22. Theframe 22 is square and defines an opening (not labeled) in a center thereof, provided for airflow fromfan 10. Fourflanges 220 extend outwardly and horizontally from each corner of theframe 22. Fourprotrusions 222 extend perpendicularly and downwardly from a lower face of theflanges 220 of theframe 22. Theprotrusions 222 correspond to themounting holes 120 of theupper corners 124 of thefan 10, respectively, for insertion thereinto. A plurality ofengaging ribs 2220 are formed on an outer sidewall along an axis of each of theprotrusions 222 and evenly spaced from each other along a circumference of each of theprotrusions 222. Theengaging ribs 2220 engage an inner surface of a correspondingupper corner 124 of thefan 10 surrounding themounting hole 120 of the correspondingupper corner 124 of thefan 10. A pair ofrectangular slots 224 are defined in the lower face of each of theflanges 220, symmetrical to each other relative to each of theprotrusions 222, thereby allowing a tool to engage the lower face of each of theflanges 220 of theframe 22 of thefan guard 20, for removal of theframe 22 from thefan 10. Four pairs of fasteningfeet 226 extend upwardly from an inner circumference of theframe 22, engaging thecover 24. The fasteningfeet 226 are interconnected with each other via anannual rib 225, above and parallel to theflanges 220. A plurality ofradiating ribs 227 extends radially and inwardly from theannual rib 225 towards the center of theframe 22, interconnected via a ring (not labeled) to surround a circular hole in the center of theframe 22. Theradiating ribs 227 divide the opening of theframe 22 into several parts. - The
cover 24 is gauze or netting and defines a plurality ofpores 240 therein, allowing passage of airflow fromfan 10 whilst protecting thefan 10 from contamination when airflow passes through thecover 24. Moreover, thecover 24 protects thefan 10 from damage during operation. Thecover 24 comprises a spring component, such as anannular spring 242 surrounding a bottom of thecover 24 and attached to thecover 24. Theannular spring 242 exerts force to impel the bottom of thecover 24 onto and attached to thefastening feet 226 of theframe 22; thecover 24 is thus tightly and resiliently positioned on theframe 22. Furthermore, thecover 24 of thefan guard 20, is gauze or netting and thus can also reduce noise produced by thefan 10. - In assembly, the
protrusions 222 of theframe 22 of thefan guard 20 enter themounting holes 120 of theupper corners 124 of thefan 10 and thefan guard 20 is firmly positioned on thefan 10. In this fixed position, theengaging ribs 2220 of theprotrusions 222 of theframe 22 of thefan guard 20 tightly abut the inner surfaces of theupper corners 124 surrounding themounting holes 120 of theupper corners 124 of thefan 10, wherein theprotrusions 222 of thefan guard 20 are fully engaged by theupper corners 124 of thefan 10, firmly securing thefan guard 20 to thefan 10. - For removal of the
fan guard 20 from thefan 10, theframe 22 of thefan guard 20 is raised upwardly when a force applied to theslot 224 of theframe 22 of thefan guard 20 moves to disengage theprotrusions 222 of theframe 22 from theupper corners 124 of thefan 10. Thus, disassembly of thefan guard 20 from thefan 10 is also simplified. - In use, the airflow produced by the
fan 10 passes through thecover 24 of thefan guard 20 towards thefan 10, whilst thefan guard 20 installed on thefan 10 protects themotor 14 from contamination and damage during operation. - It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the invention.
Claims (10)
1. A fan assembly comprising:
a fan comprising a plurality of upper corners extending outwardly therefrom; and
a fan guard comprising a frame and a cover covering and positioned on the frame;
the frame comprising a plurality of protrusions extending downwardly therefrom and engaging the upper corners of the fan to secure the frame to the fan; and
the cover comprising a spring component surrounding a bottom of the cover and fastening the cover to the frame, wherein a plurality of pores are defined in the cover, allowing airflow produced by the fan therethrough.
2. The fan assembly as claimed in claim 1 , wherein the cover is made of one of gauze and netting.
3. The fan assembly as claimed in claim 1 , wherein the frame comprises a plurality of fastening feet extending upwardly therefrom, and the spring component of the cover engages the fastening feet resiliently.
4. The fan assembly as claimed in claim 3 , wherein the protrusions each comprise a plurality of engaging ribs extending therefrom firmly engaging the upper corners of the fan.
5. The fan assembly as claimed in claim 3 , wherein the protrusions each comprise a plurality of engaging ribs extending from an outer sidewall along an axis thereof and firmly engaging inner surfaces of the upper corners of the fan defining mounting holes receiving the protrusions therein, respectively.
6. The fan assembly as claimed in claim 4 , wherein the frame comprises a plurality of flanges extending outwardly from side edges thereof and the protrusions are extended perpendicularly and downwardly from the flanges.
7. The fan assembly as claimed in claim 6 , wherein the frame defines a plurality of slots in the flanges adjacent to the protrusions.
8. The fan assembly as claimed in claim 6 , wherein the frame defines an opening in a center thereof and the fastening feet extend upwardly from an inner circumference of the frame defining the opening, above the flanges of the frame.
9. The fan assembly as claimed in claim 8 , wherein the frame comprises an annular rib connecting all of the fastening feet together, above and parallel to the flanges.
10. The fan assembly as claimed in claim 9 , wherein the frame comprises a plurality of radiating ribs extending radially and inwardly from the annual rib towards the center of the frame.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/202,407 US20100054920A1 (en) | 2008-09-01 | 2008-09-01 | Fan assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/202,407 US20100054920A1 (en) | 2008-09-01 | 2008-09-01 | Fan assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100054920A1 true US20100054920A1 (en) | 2010-03-04 |
Family
ID=41725717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/202,407 Abandoned US20100054920A1 (en) | 2008-09-01 | 2008-09-01 | Fan assembly |
Country Status (1)
Country | Link |
---|---|
US (1) | US20100054920A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140271130A1 (en) * | 2013-03-15 | 2014-09-18 | Scott David Hammer | Air freshening system and method |
US10436221B2 (en) | 2015-02-19 | 2019-10-08 | Hewlett Packard Enterprise Development Lp | Fan guard with flexible compression member |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6749398B2 (en) * | 2000-11-16 | 2004-06-15 | Delta Electronics Inc. | Hot swap fan tray with fan guard |
US20060013694A1 (en) * | 2004-07-13 | 2006-01-19 | Eubank Gerry E | Motor fan guard |
US20060083606A1 (en) * | 2003-01-28 | 2006-04-20 | Fujitsu Limited | Casing, equipment unit and fan units provided with the casing, and electronic equipment provided with the fan units |
-
2008
- 2008-09-01 US US12/202,407 patent/US20100054920A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6749398B2 (en) * | 2000-11-16 | 2004-06-15 | Delta Electronics Inc. | Hot swap fan tray with fan guard |
US20060083606A1 (en) * | 2003-01-28 | 2006-04-20 | Fujitsu Limited | Casing, equipment unit and fan units provided with the casing, and electronic equipment provided with the fan units |
US20060013694A1 (en) * | 2004-07-13 | 2006-01-19 | Eubank Gerry E | Motor fan guard |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140271130A1 (en) * | 2013-03-15 | 2014-09-18 | Scott David Hammer | Air freshening system and method |
US9726199B2 (en) * | 2013-03-15 | 2017-08-08 | Scott David Hammer | Air freshening system and method |
US10436221B2 (en) | 2015-02-19 | 2019-10-08 | Hewlett Packard Enterprise Development Lp | Fan guard with flexible compression member |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:XU, HONG-BO;REEL/FRAME:021466/0246 Effective date: 20080825 Owner name: HON HAI PRECISION INDUSTRY CO., LTD.,TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:XU, HONG-BO;REEL/FRAME:021466/0246 Effective date: 20080825 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |