Turbo-guiding type cooling apparatus

Abstract

A turbo-guiding type cooling apparatus includes a reverse fixed blade unit interposed between the wind exit surface of the fan and the heat sink. The rotation direction of the reverse fixed blade unit is opposite to that of the fan. A receiving chamber is formed under the shaft of the reverse fixed blade unit, and the receiving chamber has at least one-third height of the reverse fixed blade unit. A separation portion extending into the receiving chamber is formed at the center of the top of at least one part of the heat sink. The reverse fixed blade unit includes a reduction cover inward tapered at the periphery of the wind outlet thereof. The height (h1) of the periphery of the reduction cover is the same to or greater than the height (h2) of the periphery of the wind outlet of the reverse fixed blade unit, thereby forming a ring-shaped enclosing type. Therefore, the wind will be smoothly concentrated and the flow direction will be changed. Meanwhile, each of the airflows will be separated by the separation portion and delivered to the heat source of the heat sink.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to a turbo-guiding type cooling apparatus, and more particularly to a structure that includes a reverse fixed blade unit and a reduction cover between a heat sink and a fan.[0003]2. Description of the Related Art[0004]As shown in FIGS. 1 and 2, a conventional cooling apparatus 10 applied to CPU or other electronic chips includes a heat sink 11 having a plurality of fins and an axial flow fan 12 disposed at the top of the heat sink 11. The bottom of the heat sink 11 lies on the surface of the electronic chip (or heat source 14). After the operation of the fan 12, the heat energy of the heat source 14 can be transmitted to all fins of the heat sink 11 by use of the heat conduction. Meanwhile, the cool air generated by the fan 12 is delivered to the fins of the heat sink 11 for conducting the heat exchange. In the way, the heat energy is removed.[0005]However, the conventional fan 12 belongs to an axi...

AI Technical Summary

Benefits of technology

[0011]A primary object of the invention is to provide a turbo-guiding type cooling apparatus that smoothly delivers the current of air generated by a fan to a heat sink such that a heat exchange takes place in a heat region where the current of air within the heat sink does not reach easily. In other words, the heat region can be cooled by the injected current of air such that the heat energy can be smoothly removed for enhancing the heat-removal efficiency.

[0017]Based on the above-mentioned features, the turbo-guiding type cooling apparatus includes a reverse fixed blade unit and a reduction cover. A receiving chamber is formed under the shaft of the reverse fixed blade unit into which the separation portion is extended. In this way, a concentrated airflow can be delivered to the front side of a heat region of the cooling fins. The idea of smooth guiding of the airflow and the structure appearance is partially similar to the turbo-supercharging principle. The main feature of the invention lies in “diversion” (flow-guiding). In other words, the reverse fixed blade unit within the reduction cover, the flow-guiding chamber under the shaft, and the extending reduction cover are well employed for conducting the flow-guiding task. Therefore, it is not necessary for the invention to have a high rotation speed required by the turbine. Meanwhile, components such as coupling and gear mechanism are also not required for pressure rise. This feature is therefore called as “turbo-guiding” that shows a distinct difference from the conventional “turbo-supercharging”.

[0019]No matter which of the above-mentioned embodiments is applied, a concentrated current of air directed to the heat source can be obtained. Meanwhile, the vibration and the noise generated by wind pressure can be avoided. Moreover, an optimal value of wind pressure and wind quantity can be obtained without problem under the condition of the least power loss, thereby optimizing the heat-removal efficiency. Thus, the invention can eliminate the problem of the conventional heat sink and is really an effective cooling apparatus applicable in the electronic industry.

Problems solved by technology

Moreover, the heat-removal volume is diminished for saving precious space.

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