TWI284710B

TWI284710B - Blower

Info

Publication number: TWI284710B
Application number: TW94122323A
Authority: TW
Inventors: Ching-Bai Hwang; Xi-Jian Zhu; Guo-Wen Zhang
Original assignee: Foxconn Tech Co Ltd
Priority date: 2005-07-01
Filing date: 2005-07-01
Publication date: 2007-08-01
Also published as: TW200702559A

Abstract

A blower includes a base, a cover, a motor and a plurality of fan blades extend radially from a peripheral wall of the motor. The base and the cover together define a space for receiving the motor and the blades therein. The cover defines an air inlet therein. An air outlet is defined at a side of the blower. The distance between the center of the motor and the outer boundary of the air inlet is various.

Description

1284710 九、發明說明：【發明所屬之技術領域】本务明與散熱相關，尤指一種高效之散熱風扇。【先前技術】隨著電子技術之不斷發展，電子元件朝著日益小型化、高密产之方向發展，電子元件(如中央處理器〉運行所產生之熱量日益增^ :二及時將熱量排除，將導致熱量累計進而引起溫度升高，嚴^ 元件之正常運行，通常業界於電子元件上安裝散熱賴助其^1284710 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to heat dissipation, and more particularly to an efficient cooling fan. [Prior Art] With the continuous development of electronic technology, electronic components are developing in the direction of increasingly miniaturized and high-density production. The heat generated by the operation of electronic components (such as the central processing unit) is increasing. As a result of the accumulation of heat, which causes the temperature to rise, and the normal operation of the components, the industry usually installs heat on the electronic components.

於健11上絲風扇組裝錢歸置，藉由風扇轉纽 I , 使散熱之熱餘速散發，從㈣走電子元倾產生之熱量。” 、目前電腦所採用之風扇大致分為兩種形式，即軸流式風扇與離心式風扇，而離心式風扇由於其風壓較大，多應用於筆記本電2 系統中。習狀離心式散熱風扇包括—底座…上蓋、— t 於馬達外緣之複數扇葉，該底座與上蓋共同形成一容置空間，該ϋ 中央設有-圓形入風口，該馬達係固定收容於該容置空間内，^與談入風口同心設置，風扇側緣形成—與人風口相垂直之出風口，該= 運轉時’馬達帶動扇葉旋轉’進而帶動氣流自人風口進人散敎風扇内Yu Jian 11 on the silk fan assembly money placement, with the fan switch I, so that the heat dissipation of the heat dissipation, from (four) take the heat generated by the electronic element. At present, the fans used in computers are roughly divided into two types, namely, axial flow fans and centrifugal fans, while centrifugal fans are mostly used in notebook electric 2 systems because of their large wind pressure. The fan includes a base, an upper cover, and a plurality of blades on the outer edge of the motor. The base and the upper cover together form an accommodating space, and the central portion of the cymbal is provided with a circular air inlet, and the motor is fixedly received in the accommodating space. Inside, ^ and the inlet air inlet are concentrically arranged, the fan side edge is formed - the air outlet perpendicular to the human air outlet, the = motor drives the fan blade to rotate during operation, and then the air flow enters the fan from the crowd

部，並進-步被扇葉鶴自出風口流出，吹向發熱元件，對g件進散熱。 J 藝隨著熱密度之不斷增加，對風扇之性能要求亦日亦增加，而由於，扇之風量、風壓與其所產生之噪音相財盾，在現有之風扇優化設 ^，係於滿足噪音之鮮下，藉由提高觀或增加尺寸之方式提昇風 ^性能以滿足散熱需求，然而即使在各參數之最佳組合下，風扇 =時其内部流場仍然存在流賴耗，因此如何改進現有之風扇機構，，小風扇⑽之流動娜，提昇風祕能，已成為現有風扇設計之關鍵所在。【發明内容】為解決散熱風扇内部存在流動損耗，影響風扇性能之技術問題，提供一種具有流動損耗較小之散熱風扇。The department, and the step-by-step is flowed out from the air outlet by the fan blade, blowing to the heating element, and cooling the g piece. With the increasing heat density, the performance requirements of the fan have also increased. Because of the fan volume, wind pressure and the noise generated by the fan, the existing fan is optimized to meet the noise. In the freshest way, the wind performance can be improved by increasing the view or increasing the size to meet the heat dissipation requirement. However, even under the optimal combination of parameters, the internal flow field of the fan=there is still a flow, so how to improve the existing The fan mechanism, the flow of the small fan (10), enhances the wind and secret energy, has become the key to the existing fan design. SUMMARY OF THE INVENTION In order to solve the technical problem that the flow loss is present inside the cooling fan and affect the performance of the fan, a cooling fan having a small flow loss is provided.

Claims

1284710 X. Patent application scope: ^ A cooling fan comprising a base, an upper cover, a motor and a plurality of blades disposed on the outer edge of the motor, the base and the upper cover together form an accommodation space, the motor and the fan blade The air conditioner is disposed in the accommodating space, and the air vent is formed at a side of the air vent. The air vent is formed at an air outlet perpendicular to the air inlet. The improvement is: between the outer edge of the air inlet and the motor center point. Form different distances. 2. The heat dissipation fan of claim 2, wherein the air inlet is circular. 3. The heat dissipation fan of claim 1, wherein the air inlet is non-circular.

4. The heat dissipation fan of claim 3, wherein the air inlet is concentric with the motor. 5. The heat dissipation fan of claim 3, wherein the center of the air inlet is offset from the center point of the motor. 6. The heat dissipating fan according to any one of claims 3 to 5, wherein the air inlet is elliptical or irregular. The heat radiating fan according to any one of claims 1 to 5, wherein the air inlet is formed in the base. 8. The heat dissipation fan of claim 7, wherein the air inlet is concentrically arranged. 9. If you apply for the cooling fan described in item 8, the secondary air outlet is round, round or irregular. 10. The heat dissipation fan of claim 7, wherein the secondary center is disposed and non-circular. The heat-dissipating fan of claim 1, wherein the air outlet σ includes a plurality of air outlets provided at a side end of the heat-dissipating fan. 12. The heat dissipation air according to claim 11, wherein the air outlet comprises two air outlets disposed at side ends of the heat dissipation fan and perpendicular to each other. 11,