Heat-dissipating device

Abstract

A heat-dissipating device comprises a heat-dissipating member, at least one heat-dissipating fan, and a rotation control unit. The heat-dissipating member has an airflow chamber inside and includes a plurality of air-guiding holes in communication with the airflow chamber. Each of the at least one heat-dissipating fan has two air-guiding portions, wherein one of the air-guiding portions is aligned with one of the air-guiding holes of the heat-dissipating member. The rotation control unit communicates with and controls the at least one heat-dissipating fan. Accordingly, the heat-dissipating device with a dust auto-removing function can provide a balanced heat-dissipating effect.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a heat-dissipating device and, more particularly, to a heat-dissipating device capable of integrating with a plurality of heat sources in various electronic products to provide heat-dissipating function.[0003]2. Description of the Related Art[0004]During the operation of electronic products such as lamps, backlighted modules, liquid crystal display (LCD), and computers etc., heat is generated easily. Therefore, heat-dissipating devices are widely utilized to maintain normal operation and lifetime of electronic products.[0005]Furthermore, plural electronic elements of electronic products such as motherboards, microprocessors or chips of computers must be put together in a heat-dissipating member of heat-dissipating devices with plural heat-dissipating fans for heat-dissipating purpose.[0006]FIGS. 1 and 2 shows a conventional heat-dissipating device including a heat-dissipating member 91 a...

AI Technical Summary

Benefits of technology

[0008]The primary objective of the present invention is to provide a heat-dissipating device having a balanced heat-dissipating effect.

[0010]The present invention fulfills the above objectives by providing, in a preferred form, a heat-dissipating device comprising a heat-dissipating member, at least one heat-dissipating fan, and a rotation control unit. The heat-dissipating member has an airflow chamber inside and includes a plurality of air-guiding holes in communication with the airflow chamber. Each of the at least one heat-dissipating fan has two air-guiding portions, wherein one of the air-guiding portions is aligned with one of the air-guiding holes of the heat-dissipating member. The rotation control unit communicates with and controls the at least one heat-dissipating fan. Accordingly, the heat-dissipating device with a dust auto-removing function can provide a balanced heat-dissipating effect.

Problems solved by technology

Furthermore, dust is liable to accumulate at specific area such as the compartment 911, the first heat-dissipating fan 92 and the second heat-dissipating fan 93, and thus adversely affects the heat-dissipating effect.

Further, the heat-dissipating device 9 could not effectively lower the temperature of the electronic elements close to the second heat-dissipating fan 93.

Overall, the heat-dissipating effect of the heat-dissipating device 9 is unsatisfactory and is not uniform.

Images