Heat-Dissipating Fan

a technology of heat dissipation fan and heat dissipation effect, which is applied in the direction of liquid fuel engine, instruments, machines/engines, etc., can solve the problems of insufficient space between two adjacent heat-dissipation fans, inability to maintain the heat-dissipation effect of the fan, and inability to achieve the effect of keeping the heat-dissipation performance of the heat-dissipation fan

Inactive Publication Date: 2007-12-06
RICHARD LEE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]In view of the above drawback, the present invention is to provide a heat-dissipating fan. When two adjacent heat-dissipating fans operate at the same time, a cover is used to close the intake of one fan facing to the intake of the other fan. In this way, the interference in the air-extracting action between the facing intakes of two adjacent fans can be avoided, thereby to keep the heat-dissipating performance of the heat-dissipating fans.
[0010]The present invention provides a heat-dissipating fan comprising a base, a blade assembly, an outer casing and a cover. The base further comprises an accommodating trough and an opening. The accommodating trough is used to accommodate the blade assembly. The bottom of the accommodating trough is provided with a plurality of first intakes. The opening is used to guide the airflow generated by the fan to the outside. Further, the outer casing is provided above the base and correspondingly combined with the base. The center of the outer casing is provided with a second intake. Finally, the cover is provided under the accommodating trough of the base and correspondingly connected to the bottom of the base. With the above arrangement, when two adjacent heat-dissipating fans operate at the same time, with the closing action of the cover, the interference in the air-extracting action of the facing intakes of the two adjacent heat-dissipating fans can be reduced, thereby to keep the heat-dissipating effect of the fan.

Problems solved by technology

Owing to the tendency to pursue a small-sized and light device, the heat generated by the device is inevitably increased to a great extent.
However, according to the above, with the increasing precision of the electronic technique, the operation of the electronic elements will inevitably generate more and more heat.
However, since the electronic elements such as interface card are juxtaposed on the man board, when the heat-dissipating fan having two intakes is respectively disposed on the juxtaposed electronic elements, the space between two adjacent heat-dissipating fans is so limited.
Further, since the heat-dissipating fan has two intakes, the intakes of the two adjacent heat-dissipating fans will operate face to face, which interferes the air-extracting action with each other and adversely reduces the amount of air generated by each fan.
As a result, the air-cooling action of the heat-dissipating fan is greatly reduced, which becomes a drawback of such conventional device.

Method used

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Embodiment Construction

[0017]With reference to FIG. 1, it is an exploded perspective view showing the structure of the present invention. It can be seen from the drawing that the heat-dissipating fan of the present invention mainly comprises a base 1, a blade assembly 3, an outer casing 5 and a cover 7. The base 1 is provided with an accommodating trough 12 for mounting the blade assembly 3. The periphery of the base 1 is formed into a curved shape. The front end of the base 1 is provided with an opening 13. The periphery of the base 1 is provided with a plurality of connecting holes 14. The bottom of the base 1 has a bottom plate 15. The center of the bottom plate 15 is provided with a positioning pillar 16 for connecting to the blade assembly 3. Leads are provided in the positioning pillar and electrically connected to the blade assembly 3, which is conventional and thus the description thereof is omitted. The surface of the bottom plate 15 is circumferentially provided with annular first intakes 151 (t...

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Abstract

A heat-dissipating fan has two intakes and can be used for mounting on a heat-generating element. The heat-dissipating fan mainly includes a base, a blade assembly, an outer casing and a cover. The base has an accommodating trough for accommodating the blade assembly. The bottom of the accommodating trough is provided with a plurality of first intakes. Further, the outer casing is provided above the base and correspondingly combined with the base. The center of the outer casing is provided with a second intake. Finally, the cover is provided under the base and correspondingly connected to the bottom of the base. With the above arrangement, when two adjacent heat-dissipating fans operate at the same time, with the closing action of the cover, the interference in the air-extracting action between the facing intakes of the two adjacent heat-dissipating fans can be reduced to keep the heat-dissipating effect of the fan.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a heat-dissipating device, and in particular to a heat-dissipating fan for mounting on a heat-generating element.[0003]2. Description of Prior Art[0004]Owing to the tendency to pursue a small-sized and light device, the heat generated by the device is inevitably increased to a great extent. In order not to influence the operation of the electronic element by the increasing temperature resulted from the heat source, the heat-dissipating effect should be increased accordingly. Therefore, a technical measure that is most widely used is to directly mount the heat-dissipating device on the heat-generating element, thereby to improve the heat-dissipating performance with respect to the heat-generating element.[0005]With the increase in the functions of a modern computer, the number of the electronic elements provided within the computer is increasing accordingly. For example, interface cards h...

Claims

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Application Information

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IPC IPC(8): F01D3/02
CPCF04D29/161G06F1/20F04D29/582F04D29/424
InventorYANG, CHIH-HENG
OwnerRICHARD LEE