What’s the best heat transfer in high-power electronic products?



High-power electronic products in the operation of a certain amount of heat, and when the electronic components for a long time beyond the operating temperature range, will greatly shorten the service life of the components, and even lead to an increase in current, the formation of a vicious cycle until the components burned, so that electronic equipment can not work; we can choose to increase the heat dissipation system in the electronic products to ensure that the components can be fully dissipated, but the heat source and the heat dissipation device there is a large number of uneven gaps Thermal Interface Pad, and the thermal conductivity of air is only 0.023 W/m-k; This time it is necessary to use the electronic materials with filling thermal conductivity: thermal conductivity material is an accessory in electronic products, the role of electronic products in solving the problem of heat dissipation, thereby enhancing the operating speed, reliability, stability and service life of electronic products, is an indispensable part of electronic products.



The following major thermally conductive materials:



1、 thermally conductive silicone sheet:



In the industry, also known as thermal conductive pads, thermal conductive silicone sheet, soft thermal pads, etc., is designed specifically for the use of the gap to transfer the heat of the design of the production program, enough to fill the gap, complete the heat-generating parts of the heat dissipation parts of the heat transfer between the parts, but also play a role in insulation, vibration damping, sealing, etc., to meet the miniaturization of the equipment and the design requirements of ultra-thin, is the craftsmanship and the use of a wide range of thickness applicable to, it is a Better thermal conductivity filler material. In the design can reduce the heat sink and heat dissipation structural components of the process work requirements, in the construction of simple and convenient, can be reused.



2、 thermally conductive silicone grease:



Thermally conductive grease has a high cost-effective, in the electronic heat dissipation belongs to a common thermal conductivity materials. Organic silicone as the main raw material, add heat-resistant, excellent thermal conductivity materials, made of thermally conductive silicone grease-like complex for power amplifiers, transistors, tubes, CPU and other electronic components of the thermal conductivity and heat dissipation, so as to ensure the stability of the electrical properties of the electronic instruments, meters and so on. But the operation is not very convenient, the general thermal paste will have silicone oil precipitation, time will dry solid, pulverization, loss of thermal efficacy, so the use of long life of electronic products is not recommended to use thermal paste.



3、 thermally conductive double-sided tape:



Thermally conductive double-sided adhesive is filled with acrylic polymer thermally conductive ceramic powder, and silicone adhesive composite. With high thermal conductivity and insulation properties, and has a soft, compression, serviceability, strong adhesion. Adaptable to a wide range of temperatures, can fill uneven surfaces, can be tightly and firmly affixed to the heat source devices and heat sinks, the heat will be quickly conducted out. Mainly used for bonding heat sinks and heat generating equipment, the construction method is very simple and convenient, just place the heat conduction double-sided stickers between the heat generating sheet and the heat sink, and press it firmly, the heat sink is firmly fixed on the heat generating sheet, the use of simple and convenient, and conducive to improving production efficiency. Its heat dissipation effect than the general effect of the thermal sticker is obvious, greatly enhancing the life of the components, is the heat conduction of electronic products is not a good choice. It should be noted that the bonding surface needs to be clean, is not suitable for bonding the surface of the printing and plating.



4、thermally conductive graphite sheet:



The crystallization of special processes and advanced technology, extraordinary thermal conductivity and low resistance is used in special occasions, its thermal conductivity and the material itself has the flexibility, a good fit for the power device heat dissipation and installation requirements. High thermal conductivity, the material is relatively thin, cost-effective, strong longitudinal thermal conductivity, can quickly remove the hot spot area. However, it should be noted that the thermal conductivity of graphite sheet is not insulated, the material is brittle, punching loss, (such as the need for insulation can be coated with an insulating film).





5、Thermally conductive mud:



Thermally conductive clay application process can be made according to customer needs into a high compression rate of the sheet products or made into a semi-flow state to meet the automatic dispensing process, not subject to the shape and size of the electronic components to hinder. It has good thermal conductivity and excellent caulking effect.



6、Thermally conductive potting adhesive:



Thermally conductive potting adhesive is suitable for potting electronic components with high requirements for heat dissipation. After curing, the adhesive has good thermal conductivity, excellent insulation, excellent electrical properties, good adhesion, good surface gloss.



Today focus on thermal conductive silicone pads:



IMG_262


Thermally conductive silicone pads with electrical insulation, corrosion resistance, anti-aging, easy installation, cost savings; we have been through many years of continuous innovation of the R & D team, silicone sheet thermal conductivity from the original 1.0W / (m-K) to today's 5.2W / (m-K), thickness 0.25MM to 15MM can be applied to a variety of heat dissipation structure, the product has obtained a number of new patents and ROSDH, UL, REACH and many other product certification.



Many Thermal Pad manufacturers of thermally conductive materials like to exaggerate the thermal conductivity of the thermal conductivity of the silicone film, not as engineers in the product after the test direct feedback, one-on-one exchanges with engineers to explore the experience of electronic products cooling, we know that only to win more engineers on the recognition of the product to gain a foothold in the industry of thermally conductive materials undefeated; our thermal conductive silicone film has 11 years of production of thermal conductive materials for the electronics industry. We have 11 years of experience in the production of thermal conductive materials for the electronics industry, involved in the thermal structure of many electronic products, but also to provide engineers with a number of thermal guidance program; with the thermal conductivity of the silicone pad thermal efficiency continues to be upgraded, we broke the monopoly of foreign brands in the domestic high-end electronic thermal conductive materials, but also to obtain recognition from foreign customers.



If you would like to learn more about Dobon performance thermal materials, please visit our website at www.szdobon.com.

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