CN104235075A - Fan module - Google Patents

Fan module Download PDF

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Publication number
CN104235075A
CN104235075A CN201310222981.XA CN201310222981A CN104235075A CN 104235075 A CN104235075 A CN 104235075A CN 201310222981 A CN201310222981 A CN 201310222981A CN 104235075 A CN104235075 A CN 104235075A
Authority
CN
China
Prior art keywords
fan
sleeve
cover body
fixed
axial fan
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.)
Granted
Application number
CN201310222981.XA
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Chinese (zh)
Other versions
CN104235075B (en
Inventor
陈志华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suichuan Wanli Electronic Technology Co ltd
Original Assignee
Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hongfujin Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Shenzhen Co Ltd
Priority to CN201310222981.XA priority Critical patent/CN104235075B/en
Priority claimed from CN201310222981.XA external-priority patent/CN104235075B/en
Publication of CN104235075A publication Critical patent/CN104235075A/en
Application granted granted Critical
Publication of CN104235075B publication Critical patent/CN104235075B/en
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Abstract

A fan module comprises an axial fan. The two ends of the axial fan are respectively provided with a ventilation opening; at least one ventilation opening is provided with a rectification cover; the axial fan comprises a hub arranged in the center, a plurality of blades arranged around the hub and a sleeve arranged on the peripheries of the blades; the rectification cover comprises a conical cover body and a plurality of fixing pieces, and the small end of the cover body exactly faces the ventilation openings of the axial fan, and is arranged between the sleeve and the hub or exactly faces fan blades; one end of each fixing piece is fixed to the large end of the cover body, and the other ends of the fixing pieces are fixed to the sleeve. Compared with the prior art, the conical rectification cover of the fan module can reduce the disturbance of the turbulent flow of the ventilation openings to the fan blades, and under the condition that the fan structure is not changed, the noise of the fan can be effectively reduced.

Description

Fan module
Technical field
The present invention relates to a kind of fan module.
Background technique
In electronics, the air-flow of fan inlet end can disturb by the layout of front mechanism member and soft copy, the irregular turbulent flow of easy formation enters fan, fan leaf is made to produce noise, air-flow also can cause extra noise in the pressure change of fan outlet place moment in addition, not only these noises cause puzzlement to operator, the running of even possible influential system inner assembly under suitably not controlling.
Summary of the invention
In view of above content, be necessary that providing a kind of is beneficial to the fan module reducing noise.
A kind of fan module, comprise an axial fan, the two ends of axial fan are respectively equipped with a ventilated port, at least one ventilated port place is provided with a cowling, this axial fan comprises the sleeve that is positioned at the wheel hub at center, the some blades and be located in around wheel hub are sheathed on blade periphery, this cowling comprises the cover body of a taper and some fixed plates, cover body little is rectified the ventilated port of axial fan and between sleeve and wheel hub or just to flabellum, the large end of this cover body is fixed in one end of these fixed plates, and the other end of these fixed plates is fixed on sleeve.
Comparing prior art, the interference that the blade of turbulent flow to fan that the cowling of the taper of said fans module can reduce ventilated port place causes, when not changing fan structure, the noise of fan can be effectively reduced.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of fan module better embodiment of the present invention.
Fig. 2 is the three-dimensional erection drawing of fan module of the present invention.
Fig. 3 is the sectional view of Fig. 2 along III-III direction.
Primary component symbol description
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1 and Fig. 2, fan module of the present invention comprises an axial fan 10 and is arranged at two cowlings 20 at axial fan 10 two ends respectively.
The two ends of this axial fan 10 are respectively equipped with a ventilated port 15.This axial fan 10 comprises a wheel hub 11 being positioned at center, be located in the sleeve 13 that some blades around wheel hub 11 12 and are sheathed on blade 12 periphery.The two ends of sleeve 13 are also vertically provided with two end plates 131, and the outer surface of sleeve 13 is provided with the plat part 132 of some connection two end plates 131 vertically.
Please refer to Fig. 1 and Fig. 3, cowling 20 comprise a taper cover body 21 and some be arranged at cover body 21 outside and from the edge of the large end 211 of cover body 21 to the fixed plate 22 being parallel to the central axis of cowling 20 that the small end 212 of cover body 21 extends to form, this fixed plate 22 is elastic sheet.
In present embodiment, wheel hub 11 is cylindric.Cover body 21 is circular cone tubular.The diameter of the large end 211 of cover body 21 is greater than the external diameter of the sleeve 13 of axial fan 10.The diameter of the small end 212 of cover body 21 is greater than the diameter of the wheel hub 11 of axial fan 10, is less than the internal diameter of sleeve 13.The selection range of the inclination α of the internal surface of cover body 21 is 20 degree ~ 30 degree, and preferred angled degree is 20 degree.
Please refer to Fig. 2, when cowling 20 is installed, respectively by two ventilated ports 15 of the small end 212 aiming axis flow fan 10 of the cover body 21 of two cowlings 20, the small end 212 of cover body 21 is spaced a distance with the wheel hub 11 of axial fan 10, and fixed plate 22 elasticity is connected to the plat part 132 of the outside correspondence of end plate 131.Also glue can be coated with bonding between fixed plate 22 and plat part 132.The two ends of axial fan 10 are installed in by two cowlings 20.
Before air-flow enters the front end ventilated port 15 of axial fan 10, turbulent flow can be produced because of the interference of front mechanism member and electronic component, the cover body 21 of the taper of cowling 20 can produce rectified action to turbulent flow, reduces the impact of turbulent flow to flabellum 12, thus reduces the front end noise of axial fan 10.
When air-flow flows out the rear end ventilated port 15 of axial fan 10, can because of the change of the stream pressure of moment, cause axial fan 10 moment speedup, produce extra noise, the cover body 21 of the taper of cowling 20 can reduce the pressure change of air-flow moment, buffer function is played to effluent stream, thus reduces axial fan 10 rear end noise.
As from the foregoing, two cowlings 21 of the circular cone tubular of fan guard 20 can reduce ventilated port 15 place air-flow to the impact of the performance of axial fan 10, when not changing the structure of axial fan 10, can effectively reduce the noise of axial fan 10.

Claims (6)

1. a fan module, comprise an axial fan, the two ends of axial fan are respectively equipped with a ventilated port, at least one ventilated port place is provided with a cowling, this axial fan comprises the sleeve that is positioned at the wheel hub at center, the some blades and be located in around wheel hub are sheathed on blade periphery, this cowling comprises the cover body of a taper and some fixed plates, cover body little is rectified the ventilated port of axial fan and between sleeve and wheel hub or just to flabellum, the large end of this cover body is fixed in one end of these fixed plates, and the other end of these fixed plates is fixed on sleeve.
2. fan module according to claim 1, is characterized in that: wheel hub is for cylindric, and cover body is circular cone tubular, and the diameter of large end is greater than the external diameter of sleeve, and the diameter of small end is greater than the diameter of sleeve wheel hub and is less than the internal diameter of sleeve.
3. fan module according to claim 1, is characterized in that: the inclination of the internal surface of cover body is 20 degree ~ 30 degree.
4. fan module according to claim 1, is characterized in that: fixed plate is the elastic sheet extended to form to small end from the edge of the large end of cover body.
5. fan module according to claim 1, is characterized in that: the two ends of sleeve are also vertically provided with two end plates, and the outer surface of sleeve is provided with the plat part of some connection two end plates vertically, and these fixed plates are fixed on corresponding plat part.
6. fan module according to claim 1, is characterized in that: be coated with glue between fixed plate and sleeve bonding.
CN201310222981.XA 2013-06-06 Fan module Active CN104235075B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310222981.XA CN104235075B (en) 2013-06-06 Fan module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310222981.XA CN104235075B (en) 2013-06-06 Fan module

Publications (2)

Publication Number Publication Date
CN104235075A true CN104235075A (en) 2014-12-24
CN104235075B CN104235075B (en) 2016-11-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04287899A (en) * 1991-03-18 1992-10-13 Mitsubishi Electric Corp Silent ventilating device
CN1746514A (en) * 2004-09-06 2006-03-15 台达电子工业股份有限公司 Radiating fan and its frame structure
CN201339591Y (en) * 2009-02-05 2009-11-04 常熟市鼓风机有限公司 Axial-flow ventilator
CN201763685U (en) * 2010-08-23 2011-03-16 佛山市顺德区泛仕达机电有限公司 Mixed flow type pipeline blower structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04287899A (en) * 1991-03-18 1992-10-13 Mitsubishi Electric Corp Silent ventilating device
CN1746514A (en) * 2004-09-06 2006-03-15 台达电子工业股份有限公司 Radiating fan and its frame structure
CN201339591Y (en) * 2009-02-05 2009-11-04 常熟市鼓风机有限公司 Axial-flow ventilator
CN201763685U (en) * 2010-08-23 2011-03-16 佛山市顺德区泛仕达机电有限公司 Mixed flow type pipeline blower structure

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Denomination of invention: FAN Module

Effective date of registration: 20211220

Granted publication date: 20161130

Pledgee: Ganzhou Bank Co.,Ltd. Suichuan sub branch

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