CN102128178A - Fan blade structure and centrifugal fan with same - Google Patents

Fan blade structure and centrifugal fan with same Download PDF

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Publication number
CN102128178A
CN102128178A CN2010103003751A CN201010300375A CN102128178A CN 102128178 A CN102128178 A CN 102128178A CN 2010103003751 A CN2010103003751 A CN 2010103003751A CN 201010300375 A CN201010300375 A CN 201010300375A CN 102128178 A CN102128178 A CN 102128178A
Authority
CN
China
Prior art keywords
blade
blades
curved portions
leaf dish
blade structure
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
Application number
CN2010103003751A
Other languages
Chinese (zh)
Inventor
梁恩铭
余方祥
洪健隆
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.)
Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
Original Assignee
Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen 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 Hong Jun Precision Industry Co ltd, Fuzhun Precision Industry Shenzhen Co Ltd filed Critical Hong Jun Precision Industry Co ltd
Priority to CN2010103003751A priority Critical patent/CN102128178A/en
Priority to US12/748,447 priority patent/US20110176916A1/en
Publication of CN102128178A publication Critical patent/CN102128178A/en
Pending legal-status Critical Current

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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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/203—Cooling means for portable computers, e.g. for laptops

Abstract

The invention relates to a fan blade structure and a centrifugal fan with the same. The fan blade structure comprises a hub and a plurality of first blades extending outwards along the outer edge of the hub, a blade disc which is arranged at ends of the first blades and is mutually connected with the first blades and a plurality of second blades which are arranged on the blade disc and are positioned among the first blades, wherein the ends of the first blades bend and extends outwards to form an arc-shaped part; the second blades are in an arc shape of which the direction is opposite to the bending direction of the arc-shaped part of each first blade; and the speed of air flow can be increased to allow more air flow on the inner side of the arc-shaped parts of the first blades to flow towards the outer periphery and fan frames of the fan blade structure, so that more air flow is discharged from an air outlet of the centrifugal fan to enhance the heat dispersion performance of the centrifugal fan.

Description

Blade structure and have the centrifugal cutter of this blade structure
Technical field
The present invention relates to a kind of blade structure, be meant a kind of blade structure that is used for centrifugal cutter especially.
Background technique
In recent years along with the development of electronic industry, the performance of electronic component constantly promotes, and arithmetic speed is more and more faster, and the arithmetic speed of its inside chip group constantly promotes, number of chips constantly increases, the also corresponding increase of the heat that is distributed during chip operation if these heats are not in time distributed, will greatly influence the performance of electronic component, the arithmetic speed of electronic component is reduced, along with the continuous accumulation of heat, also may burn electronic component, therefore must dispel the heat to electronic component.
In the limited electronic equipment of installing spaces such as notebook computer, one centrifugal cutter is installed near electronic component usually, the air-flow that flabellum rotation by centrifugal cutter produces directly blows to electronic component or is installed on radiator on the electronic component, and it is dispelled the heat effectively.The blade structure of existing centrifugal cutter generally includes a wheel hub and reaches the some blades that outwards are radial extension by the outer rim of this wheel hub, and during work, it is moving that the blade rotation drives flow of ambient air, produces air-flow.Increase along with the electronic element radiating amount, can produce bigger blast and air quantity when needing fan work, and the blade structure of fan has considerable influence to the blast and the air quantity of its generation, and therefore, industry desired design always goes out a kind of blade structure that can produce big blast and air quantity.
Summary of the invention
In view of this, be necessary to provide a kind of and can produce big blast and the blade structure of air quantity and centrifugal cutter with this blade structure.
A kind of blade structure, comprise a wheel hub and by outward extending some first blades of this wheel hub outer rim, be located at described first blade end the bottom and and the interconnective leaf dish of described first blade and be located on this leaf dish and some second blades between described first blade, the terminal outwards bending of described first blade extends to form a curved portions, and described second blade is the opposite arc of overbending direction with the curved portions of first blade.
A kind of centrifugal cutter, comprise a fan frame and be located at the interior blade structure of this fan frame, this fan frame comprises a top board, one base plate and be connected in side plate between this top board and the base plate, one of them is provided with a wind inlet at least for this base plate and top board, this side plate is provided with an exhaust outlet, this blade structure comprises that a wheel hub reaches by outward extending some first blades of this wheel hub outer rim, be located at described first blade end the bottom and with the interconnective leaf dish of described first blade, and be located on this leaf dish and some second blades between described first blade, the terminal outwards bending of described first blade is extended, and described second blade is to the direction bending opposite with the terminal overbending direction of first blade.
Compared with prior art, the terminal outwards bending of first blade of the blade structure of above-mentioned centrifugal cutter is extended, has bigger wind sweeping area in the time of can making its rotation, simultaneously owing to this second blade bends to the direction opposite with the terminal overbending direction of first blade, the speed that can increase air-flow forces the air-flow of inboard of the end of this first blade more to flow between the outer periphery of this blade structure and fan frame, more air-flow is discharged by the exhaust outlet of this centrifugal cutter, thereby strengthen this centrifugal cutter heat dispersion.
Description of drawings
Fig. 1 is applied to the ssembly drawing of a preferred embodiment of centrifugal cutter for blade structure of the present invention.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the enlarged view of blade structure in the centrifugal cutter shown in Figure 1.
The primary component symbol description
Centrifugal cutter 10
The fan frame 12
Blade structure 14
Top board 120
Wind inlet 121、123
Base plate 122
Side plate 124
Support 125
Containing space 126
Dunnage 127
Rib 128
Body 129
Bearing 130
Exhaust outlet 131
Wheel hub 140
Roof 141
Blade 142、146
Annular wall 143
The leaf dish 144
Joint 145
Curved portions 147
Embodiment
Following with reference to accompanying drawing, in conjunction with the embodiments the present invention is further specified.
As shown in Figures 1 and 2, this centrifugal cutter 10 comprises a fan frame 12 and is located at the interior blade structure 14 of this fan frame 12.
This fan frame 12 comprise a top board 120, a base plate 122 and be connected between this top board 120 and the base plate 122 and with the side plate 124 of these top board 120 integrated volutes, this top board 120, base plate 122 and the side plate 124 common containing spaces 126 that form ccontaining described blade structures 14.Described top board 120 and base plate 122 are divided into the both sides up and down of this blade structure 14, the middle position of this top board 120 and base plate 122, promptly form the upper and lower wind inlet 121,123 of a circle respectively over against the position of this blade structure 14, this base plate 122 is provided with a support 125 in this time wind inlet 123.Described support 125 comprises the dunnage 127 of a circle and is connected in three root bars 128 between this dunnage 127 and this base plate 122.The middle part of described dunnage 127 is provided with a body 129, one bearings 130 and is contained in this body 129.This side plate 124 forms an exhaust outlet 131 in a side of fan frame 12.
See also Fig. 3, this blade structure 14 comprises a wheel hub 140, be located on some first blades 142 of these wheel hub 140 peripheries, be located at bottom and and its interconnective leaf dish 144 and be located on this leaf dish 144 and be located at some second blades 146 between every adjacent two first blades 142 at interval of described first blade, 142 ends.
This wheel hub 140 comprises the annular wall 143 that the roof 141 and of a circle extends vertically downward from these roof 141 peripheries.The middle part of this roof 141 extends to form a mandrel (figure does not show) downwards, thereby described blade structure 14 is assemblied in this bearing 130 by this mandrel and is rotatably mounted on the body 129, and be contained in this containing space 126, thereby make the outward edge of this blade structure 14 and 124 of the side plates of this fan frame 12 form airflow path.
Described first blade 142 outwards is radial extension by the outer periphery of the annular wall 143 of this wheel hub 140, and is distributed in the periphery of wheel hub 140 equably, does not rock thereby can not produce when making 14 rotations of this blade structure.Each first blade 142 comprises a junction 145 that is connected with annular wall 143 and a curved portions 147 of extending from the terminal outwards bending of this joint 145, this joint 145 is diagonally extending in the counterclockwise direction from annular wall 143 peripheries, this curved portions 147 is from edge, the end bending back direction opposite with the true dip direction of this joint 145 of the joint 145 of correspondence, promptly outwards level and smooth along clockwise direction extension the, this curved portions 147 have bigger wind sweeping area when blade structure 14 rotations (turning clockwise).
This leaf dish 144 is the tabular of ring, its be located at described first blade 142 curved portions 147 the lower end and be connected with curved portions 147.The size of the external diameter of the size of the external diameter of this leaf dish 144 and this first blade 142 about equally, and the size of the external diameter of the joint 145 of the size of its internal diameter and this first blade 142 about equally, thereby make the curved portions 147 of this first blade 142 can just be located on this leaf dish 144.
Described second blade 146 is located on this leaf dish 144 and is relative with the curved portions 147 of described first blade 142, described second blade 146 is arranged alternately with described first blade 142, promptly be provided with one second blade 146 between the curved portions 147 of every adjacent two first blades 142, during concrete enforcement, the number of described second blade 146 is not subjected to the restriction of present embodiment, can be two or more yet.Each second blade 146 is the opposite arc of curved portions 147 overbending directions with first blade 142, promptly by the outer rim that smoothly extends to this leaf dish 144 after the outside bending of the inner edge of this leaf dish 144 in the counterclockwise direction.The overbending direction of the true dip direction of the joint 145 of first blade 142 in this blade structure 10, the overbending direction of curved portions 147 and second blade 146 is not subjected to the restriction of present embodiment, described joint 145 is true dip direction along clockwise direction also, described curved portions 147 is extended to bending counterclockwise accordingly, second blade 146 extends to the clockwise direction bending, and this moment, blade structure 10 rotated in the counterclockwise direction.
During use, this blade structure 14 is rotated in a clockwise direction, and makes this centrifugal cutter 10 suck air-flows by upper and lower wind inlet 121,123, and the air-flow that is driven in the runner by the rotation of this blade structure 14 is rotated in a clockwise direction, and is blown out by exhaust outlet 131.The curved portions 147 of first blade 142 of this blade structure 14 is extended along clockwise direction, has bigger wind sweeping area in the time of can making its rotation, increase the flow velocity of air-flow, this second blade 146 and the curved portions 147 of first blade 142 are along opposite overbending direction in addition, the speed that can increase on the one hand air-flow forces the air-flow of inboard of curved portions 147 of this first blade 142 more mobile with the airflow path direction of 12 of fan frames to the outer periphery of this blade structure 10, can increase stream pressure is on the other hand discharged the air-flow in this airflow path more by the exhaust outlet 131 of this centrifugal cutter 10, described first blade 142 and second blade 146 interact, thereby strengthen the blast and the air quantity of this centrifugal cutter 10, improve its heat dispersion.

Claims (10)

1. blade structure, comprise that a wheel hub reaches by outward extending some first blades of this wheel hub outer rim, it is characterized in that: also comprise the end of being located at described first blade the bottom and and the interconnective leaf dish of described first blade and be located on this leaf dish and some second blades between described first blade, the terminal outwards bending of described first blade extends to form a curved portions, and described second blade is the opposite arc of overbending direction with the curved portions of first blade.
2. blade structure as claimed in claim 1 is characterized in that: described second blade is relative with the curved portions of described first blade.
3. blade structure as claimed in claim 1 is characterized in that: described second blade and the described first blade alternate setting.
4. as any one described blade structure of claim 1 to 3, it is characterized in that: each first blade also comprises a junction that is connected between described wheel hub and the curved portions, this joint is obliquely installed clockwise or counterclockwise by the periphery of wheel hub, and this curved portions is extended along the direction opposite with the true dip direction of this joint is outwards level and smooth from the end bending back of the joint of correspondence.
5. blade structure as claimed in claim 4 is characterized in that: described leaf dish is the tabular of ring.
6. blade structure as claimed in claim 5 is characterized in that: the equal and opposite in direction of the external diameter of the size of the external diameter of described leaf dish and this first blade, the equal and opposite in direction of the external diameter of the joint of the size of its internal diameter and this first blade.
7. blade structure as claimed in claim 6 is characterized in that: described second blade is extended to the outer rim of this leaf dish by the inner edge of this leaf dish.
8. centrifugal cutter, comprise a fan frame and be located at the interior blade structure of this fan frame, this fan frame comprises a top board, one base plate and be connected in side plate between this top board and the base plate, one of them is provided with a wind inlet at least for this base plate and top board, this side plate is provided with an exhaust outlet, it is characterized in that: this blade structure comprises that a wheel hub reaches by outward extending some first blades of this wheel hub outer rim, be located at described first blade end the bottom and with the interconnective leaf dish of described first blade, and be located on this leaf dish and some second blades between described first blade, the terminal outwards bending of described first blade is extended, and described second blade is the direction bending opposite with the first blade end overbending direction.
9. centrifugal cutter as claimed in claim 8, it is characterized in that: the terminal outwards bending of described first blade extends to form a curved portions, described second blade is the opposite arc of overbending direction with the curved portions of first blade, and described second blade is relative with the curved portions of described first blade.
10. centrifugal cutter as claimed in claim 8 is characterized in that: described second blade and the described first blade alternate setting.
CN2010103003751A 2010-01-16 2010-01-16 Fan blade structure and centrifugal fan with same Pending CN102128178A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010103003751A CN102128178A (en) 2010-01-16 2010-01-16 Fan blade structure and centrifugal fan with same
US12/748,447 US20110176916A1 (en) 2010-01-16 2010-03-28 Centrifugal fan and impeller thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010103003751A CN102128178A (en) 2010-01-16 2010-01-16 Fan blade structure and centrifugal fan with same

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CN102128178A true CN102128178A (en) 2011-07-20

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CN (1) CN102128178A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032371A (en) * 2011-10-05 2013-04-10 技嘉科技股份有限公司 Heat radiation fan
CN103388591A (en) * 2012-05-07 2013-11-13 协禧电机股份有限公司 Cooling fan
CN103423194A (en) * 2012-05-22 2013-12-04 富瑞精密组件（昆山）有限公司 Fan blade
CN104024974A (en) * 2011-10-28 2014-09-03 惠普发展公司，有限责任合伙企业 Fan impeller with multiple blades shaped and disposed to provide high air-power efficiency
CN104154044A (en) * 2014-06-23 2014-11-19 珠海格力电器股份有限公司 Centrifugal fan blade
CN106385136A (en) * 2016-10-08 2017-02-08 上海川也电机有限公司 Suction fan cooled open motor
CN107511801A (en) * 2017-09-13 2017-12-26 中冶天工集团天津有限公司 The air blast electric hammer of itself strength borehole cleaning after a kind of drilling for bar planting
CN107965744A (en) * 2017-12-26 2018-04-27 山东星宇方泰光电科技有限公司 A kind of cyclone radiator and heat dissipating method
CN108488099A (en) * 2018-03-28 2018-09-04 联想(北京)有限公司 Fan and electronic equipment
CN108869389A (en) * 2018-07-27 2018-11-23 深圳兴奇宏科技有限公司 Blade structure and centrifugal fan
CN109571204A (en) * 2017-09-29 2019-04-05 南京德朔实业有限公司 Hand held electric tool
WO2020077916A1 (en) * 2018-10-15 2020-04-23 广东美的白色家电技术创新中心有限公司 Counter-rotating fan

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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TWI517782B (en) * 2011-11-11 2016-01-11 華碩電腦股份有限公司 Heat dissipating module
KR102083168B1 (en) * 2017-11-07 2020-03-02 주식회사 에어로네트 Impeller having primary blades and secondary blades
TWI775036B (en) * 2020-01-14 2022-08-21 宏碁股份有限公司 Heat dissipation fan

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US1471141A (en) * 1922-09-09 1923-10-16 Robert Alfred Blake Centrifugal fan
JPS5238612A (en) * 1975-09-22 1977-03-25 Kubota Ltd Radial flow fan
CN2355151Y (en) * 1997-10-22 1999-12-22 西安交通大学 Multi-wing small flow rate high pressure impeller of centrifugal fan
CN2568855Y (en) * 2002-07-26 2003-08-27 江阴市农业药械厂 Impeller for small high speed centrifugal fan
CN101598138A (en) * 2009-07-07 2009-12-09 西安交通大学 Secondary splitter blade type centrifugal impeller
US20090311093A1 (en) * 2008-06-14 2009-12-17 Nidec Corporation Impeller and centrifugal fan

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WO1990002265A1 (en) * 1988-08-16 1990-03-08 Dresser-Rand Company Partial height blades in a compressor impeller
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US20060204363A1 (en) * 2005-03-14 2006-09-14 Jun-Chien Yen Centrifugal blade unit of a cooling fan

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Publication number Priority date Publication date Assignee Title
US1471141A (en) * 1922-09-09 1923-10-16 Robert Alfred Blake Centrifugal fan
JPS5238612A (en) * 1975-09-22 1977-03-25 Kubota Ltd Radial flow fan
CN2355151Y (en) * 1997-10-22 1999-12-22 西安交通大学 Multi-wing small flow rate high pressure impeller of centrifugal fan
CN2568855Y (en) * 2002-07-26 2003-08-27 江阴市农业药械厂 Impeller for small high speed centrifugal fan
US20090311093A1 (en) * 2008-06-14 2009-12-17 Nidec Corporation Impeller and centrifugal fan
CN101598138A (en) * 2009-07-07 2009-12-09 西安交通大学 Secondary splitter blade type centrifugal impeller

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032371B (en) * 2011-10-05 2017-04-12 技嘉科技股份有限公司 Heat radiation fan
CN103032371A (en) * 2011-10-05 2013-04-10 技嘉科技股份有限公司 Heat radiation fan
CN104024974A (en) * 2011-10-28 2014-09-03 惠普发展公司，有限责任合伙企业 Fan impeller with multiple blades shaped and disposed to provide high air-power efficiency
CN103388591A (en) * 2012-05-07 2013-11-13 协禧电机股份有限公司 Cooling fan
CN103388591B (en) * 2012-05-07 2016-02-03 协禧电机股份有限公司 Radiation fan
CN103423194A (en) * 2012-05-22 2013-12-04 富瑞精密组件（昆山）有限公司 Fan blade
CN104154044A (en) * 2014-06-23 2014-11-19 珠海格力电器股份有限公司 Centrifugal fan blade
CN106385136A (en) * 2016-10-08 2017-02-08 上海川也电机有限公司 Suction fan cooled open motor
CN107511801A (en) * 2017-09-13 2017-12-26 中冶天工集团天津有限公司 The air blast electric hammer of itself strength borehole cleaning after a kind of drilling for bar planting
CN109571204A (en) * 2017-09-29 2019-04-05 南京德朔实业有限公司 Hand held electric tool
CN107965744A (en) * 2017-12-26 2018-04-27 山东星宇方泰光电科技有限公司 A kind of cyclone radiator and heat dissipating method
CN108488099A (en) * 2018-03-28 2018-09-04 联想(北京)有限公司 Fan and electronic equipment
CN108869389A (en) * 2018-07-27 2018-11-23 深圳兴奇宏科技有限公司 Blade structure and centrifugal fan
CN108869389B (en) * 2018-07-27 2023-11-28 深圳兴奇宏科技有限公司 Fan blade structure and centrifugal fan
WO2020077916A1 (en) * 2018-10-15 2020-04-23 广东美的白色家电技术创新中心有限公司 Counter-rotating fan

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Application publication date: 20110720