Heat sinks function by efficiently transferring thermal energy (”heat”) from an object at a relatively high temperature to a second object at a lower temperature with a much greater heat capacity. This rapid transfer of thermal energy quickly brings the first object into thermal equilibrium with the second, lowering the temperature of the first object, fulfilling the heat sink’s role as a cooling device. Efficient function of a heat sink relies on rapid transfer of thermal energy from the first object to the heat sink, and the heat sink to the second object.

The most common design of a heat sink is a metal device with many fins. The high thermal conductivity of the metal combined with its large surface area due to the fins results in the rapid transfer of thermal energy to the surrounding, cooler material. This cools the heat sink and whatever it is in direct thermal contact with. Use of fluids (for example coolants in refrigeration) and thermal interface material (in cooling electronic devices) ensures good transfer of thermal energy to the heat sink. Similarly a fan may improve the transfer of thermal energy from the heat sink to the air by moving cooler air between the fins.

Heat sink performance (including free convection, forced convection, liquid cooled, and any combination thereof) is a function of material, geometry, and overall surface heat transfer coefficient. Generally, forced convection heat sink thermal performance is improved by increasing the thermal conductivity of the heat sink materials, increasing the surface area (usually by adding extended surfaces, such as fins or foam metal) and by increasing the overall area heat transfer coefficient (usually by increase fluid velocity, such as adding fans, pumps, et cetera).

With the coming of energy-saving era, high power light-emitting diodes (LEDs) are promising to replace other technologies such as incandescent and fluorescent bulbs in signaling, solid state lighting, and vehicle headlight applications due to improved luminescent efficiencies and extended lifetime. Power dissipation ratings ranging from 500mW to as much as 10 watts in a single package have become a standard and are expected to increase in the future. However, current packaging efficiencies clearly indicate that conventional packages are inadequate for the demands of any current and future applications. Heat accompanied by higher power not only causes efficiencies to lower down, but also influences long-term reliability of LED devices. Consequently, thermal management of high power LEDs is extremely crucial for proper operation and extended life. Optimal heat dissipating material and package method should be well designed to fit the growing power needs.

Established at earlier of 2000s, Foshan Nanhai Freecom Hardware Product Co., Ltd. is a specialized manufacturer of aluminum profiles and aluminum products which widely used in construction, mechanical equipments, electric appliance, light products, interior decoration and so on.

Our company is located in the famous city of aluminum -FOSHAN, owning six factories including an oxidation factory, an aluminum doors & windows factory, a glass factory, a mold factory, a hardware products factory which integrate R&D, manufacturing and marketing for aluminum product. We have more than 1500 employees which most of them have rich experiences in these lines.

We have complete processing equipment including cutting, drilling & tapping, punching, CNC/NC lathes etc. for machining all kinds of aluminum products such as heat sink, DVD/VCD control panels, aluminum shell etc. we can also process the products according to the customers' request by providing drawings or samples.

Moreover, our factory has built full set of the product quality inspection system to control each working procedure in the production process according to ISO 9001 quality guidelines.

We pretty sure that the high-class equipment, excellent technology management and rich experience in this line will help us guarantee to provide superior quality products, thus able to satisfy customers' changing needs effectively.

By following the principles of "sincere cooperation, reliable quality, reasonable price and prompt delivery" we have won a good reputation both internal and overseas, and have became the aluminum components production bases for more and more world top enterprises.

Finally, more details about our products will be attached in our website, if you are interested, please feel free to contact us or entry the website: www.freecomchina.com, we sincerely look forward to forming a profitable business relationship with you in the near future.