News

News

Aluminum IGBT heat dissipation design meets the thermal performance required by EV

Aluminum IGBT heat dissipation design meets the thermal performance required by EV

The electronic components of the car should be reliable and durable, and need no maintenance during the life of the car. However, for electric vehicles and hybrid vehicles, electronic components must be subjected to high pressure and high temperature environment, it is necessary to have liquid cooling. Obviously, cooling technology requires careful technical research and development, and materials need to pass the assessment of reliable durability and applicability to ensure stable operation. Even with high technical requirements, OEM customers continue to pursue high-volume, low-cost, high-quality products. Dana's brand LONG®Our thermal management products have many years of experience in thermal conduction solutions, providing the basis for the innovative development of insulated gate bipolar transistor (IGBT) heat sinks. Although copper has been traditionally used in automobile manufacturing for decades, it has been gradually replaced by lighter and lower-cost aluminum in recent years. The IGBT product package also goes beyond electronic solutions in the conventional sense. Today, the industry tends to use newly developed semiconductor materials to customize designs, but tailor-made product packages require thermal management equipment to meet key customer needs, such as lower cost, higher quality, and lighter weight. Dana's aluminum IGBT thermal design is an excellent solution that can effectively cool down, reduce fuel consumption, have corrosion resistance, and can even be recycled. This optimized design provides the thermal performance and rapid heat transfer required for electric and hybrid vehicles. In addition, Dana has also assembled many other features on this product to meet industry requirements. As the market tends to tailor thermal solutions with higher current density semiconductor materials, Dana engineers chose thermal resistance accordingly. Dana has therefore designed a unique cooling system specifically for these individual requirements. Power electronics engineers are also constantly seeking to achieve high durability against thermal fatigue. Overheating of the IGBT stamper may cause peeling of the inner layer to eventually fail. Dana's thermal solution limits the maximum temperature at the junction by maintaining the appropriate heat increase between the layers of the entire system. Not only that, this compact and innovative design can dissipate heat from both surfaces of the power module to achieve optimal performance. "We not only attach the heat sink to the IGBT products. We will customize a set of equipment according to the special configuration of performance requirements, and will be compact and lightweight." Dana Power Group Technology Business Development Manager Nick Carman said. In order to create such a precise heat dissipation product, Dana uses fluid-free continuous aluminum welding instead of messy solvent welding. Due to the addition of salts and ions in the process of solvent welding, it will react with the refrigerant, resulting in the accumulation of conductivity. Dana's patented fluid-free welding process ensures that the workpiece is clean by eliminating contamination and also maintains low conductivity of the heat dissipation fluid. By working with electronics manufacturers, Dana ensures that IGBTs can be matched to component interfaces in all models. Dana engineers improved bonding technology to install the interface layer to make better connectivity and optimize heat conduction. In addition, flatness is a key component interface. If not flat, it may cause the die to overheat. By reducing the contact resistance, Dana improves the thermal conductivity, thereby significantly improving the reliability of the vehicle.

2020/09/18

View Details

Double-sided heat dissipation material is a material with good heat dissipation performance

Double-sided heat dissipation material is a special material with good heat dissipation performance. It can be widely used in electronic equipment, automobiles, aerospace and other fields to effectively improve the heat dissipation effect of products and protect the normal operation of equipment.

2023/08/28

The hardness of diamond makes it an ideal material for many industrial applications.

The appearance of diamond has a variety of colors, including colorless, yellow, brown, gray, blue and green. Among them, colorless diamond is the most precious, because it can reflect and refract light, making it emit bright light. Diamond has a high refractive index, and the light will be totally reflected after entering the gem, which is why diamond looks very shiny.

2023/08/28

Microwave packaging shell is used to package and protect the microwave device shell

The microwave encapsulation shell refers to a shell for encapsulating and protecting a microwave device. Due to the high operating frequency of the microwave device, the package housing needs to have certain characteristics to meet the transmission and packaging requirements of the microwave signal. This article will introduce the relevant knowledge of microwave packaging shell from the aspects of material selection, design points and packaging process.

2023/08/28

Gold heat dissipation material is a material with high thermal conductivity and low thermal resistance.

The main characteristics of alloy heat dissipation materials are high thermal conductivity and low thermal resistance. The alloy material is mixed with some thermal conductive elements, such as copper, aluminum, silver, etc., to improve the thermal conductivity of the material. At the same time, the grain size of the alloy material is relatively small, which is conducive to the diffusion and conduction of heat. In addition, the alloy heat dissipation material also has a lower thermal resistance, so that the heat can be transferred from the heat source to the surface of the material more quickly, and finally be dissipated into the air.

2023/08/28

Plasticity and workability of double-sided heat dissipation materials

Double-sided heat dissipation material is a material that can be used for heat dissipation, and has good plasticity and processability. Plasticity means that a material can change its shape through deformation processes such as heating, compression or stretching without destroying its structure and properties. Machinability means that a material can change its shape and properties by machining, heat treatment, chemical treatment, etc.

2023/08/28