Aluminum Power Brick Cooler | DC-DC Converter Module Heat Sinks
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Aluminum Power Brick Cooler | DC-DC Converter Module Heat Sinks
Thermal issues are a major cause of electronics failures. Electronic device lifetime is directly affected by environment temperature. High ambient temperature will lead to electronics device life to be drastically reduced. On the other hand, with the increase in heat dissipation from microelectronic devices and high frequency IGBT, MOSFET, and similar devices a smaller dissipation space is required, and for high ambient temperature high reliability is required. Heat can be indispensable to enhance the heat dissipation in switch power supplies by increasing surface area.
Power electronic modules are widely used in various application areas, from ordinary household devices to transportation systems and renewable energy, and have produced high quality standards in terms of operational reliability and robustness. In order to meet these needs, a high-precision design process is essential. A fundamental challenge in power electronic design is to limit the operating temperature of the power module below acceptable limits. To this end, it is necessary to equip the power module with a heat sink so that the heat generated by the power loss of the semiconductor does not accumulate inside the module. Taking into account specific operating characteristics (such as power loss or ambient conditions), the heat sink must be designed to ensure the thermal stability of the power module and thus its operational reliability.
During the operation of the power module, power consumption will be generated inside the module, and it will be generated in the form of heat. If this heat is not dissipated, it will accumulate inside the module, causing the temperature to be too high, which may cause the power device to exceed the rated temperature limit: at the least, the service life of the module power supply will be shortened, and at worst, the module will be damaged. Therefore, heat dissipation design is crucial for power modules.
The main function of the heat sink is to increase the contact area between the heat source and the ambient air. In the case of proper air convection (including natural convection), the thermal resistance can be significantly reduced.
When the heat sink and the power module shell are directly connected, because the shell and the heat sink are both made of hard materials, it is impossible to ensure that they are completely tight and flat, and some gaps will be generated, which will increase the thermal resistance; therefore, when assembling the heat sink of the power module, it is necessary to use thermally conductive surface materials, such as thermal grease (Thermal compound), thermal conductive silicone sheet (Thermal Pad), etc., to ensure the close connection between the shell and the heat sink and reduce the gap.
WHY Extruded Aluminum Heat Sinks?
Extruded aluminum is one of the most popular and cost - effective manufacturing processes. The size of extruded heat sinks varies according to the application, with smaller ones suitable for board - level and larger ones for medium - power applications. They can be designed for passive or active cooling according to the fin shape and spacing. Board - level extruded heat sinks are often used in packages such as BGA and FPGA.
The choice of a suitable extruded heat sink mainly depends on the required shape. Extruded heat sinks are manufactured by creating a shape mold that determines the fin density, spacing and length, as well as the base height and width. The softened aluminum is pushed through the mold to form a long strip, called a raw material strip, which has the same shape and size as the mold. Then the bar is cut into smaller standard - shaped bars/rectangles or custom lengths. These are further processed and finished to create custom heat sinks. This process is fast, cost-effective and scalable; that's why many people first consider extruded heat sinks when looking for solutions.
Extruded Aluminum Heat Sinks handle temperatures up to 400°F. Engineers use them in computers, lighting, and electrical devices. Devices with 15W to 150W power commonly use them. The design allows efficient heat dispersion, especially in 2-inch to 3-inch profiles. Wide selection of aluminum Extruded heat sink extrusion designed for both natural convection as well as forced air cooling.
The benefits of extruded aluminum heat sinks:
1. Aluminum is a great thermal conductor, which is the main factor while creating heat sinks. In addition to this, it is popular for heat dissipation, high-strength metal heating, and lightweight material. The metal can be squeezed into various shapes of radiation, whether its wide flat heat sinks or oval sinks.
2. The Corrosion-resistant and rust-free material of aluminum is another reason why aluminum extrusion heatsinks are widely used across industries as it serves along without causing any heating issues.
3. High-pressure bearing and strength are among the qualities of aluminum extruded products. Even in the case of thinness or thickness, aluminum can handle sufficient pressure without getting damaged.
4. Aluminum is capable to handle various surface treatments with a wide range of designs and colors, making the final product look durable and attractive to be used for different devices.
5. Aluminum is known for its energy-saving, simple maintenance, and low-cost use. Hence, most companies prefer custom aluminum extrusions for their manufacturing needs.
Brick DC-DC power converters are an essential part of PCB design and their performance requires a stable temperature for optimum performance. DC/DC converter heat sinks are designed for engineers seeking a complete off the shelf cooling solution for brick converters. We have produced a broad array of high performance thin fin geometry power brick heat sinks to effectively cool DC to DC power converters and power modules deployed in a host of electronics applications.
Our company integrates R&D, design, manufacturing and sales, with a group of professional, excellent R&D and cooling solution team. Aluminum extruded profile radiator, by aluminum profile after cutting, stamping, drilling, CNC and other different processing technology production. Our Extruded Heat Sink Application: LED Lamp, Computer ,Inverter, Communication Device, Power Supply Equipment, Electronic Industry, Therm electric Coolers/Generator, IGBT/UPS Cooling Systems, Automobile etc.