Case sharing of thermal silica sheets and thermal gel applications in the medical industry-Medical equipment-ShenZhen Revve New Material Tech Co.,Ltd.

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Case sharing of thermal silica sheets and thermal gel applications in the medical industry

Source : Medical equipment Edit : Revve New Material Read : 56 Time : 2023-05-06

With the rapid development of medical technology and electronic technology, advanced digital electronic devices are combined with analog circuits to provide medical functions, including diagnostic equipment. The number of electronic equipment used in medical equipment has increased significantly, and the heating of equipment and equipment during use has become one of the main factors that endanger its stability and reliability. However, heating of equipment and equipment in use is inevitable, because energy A part of the energy will be lost when it is converted into the target energy, and a large part of this energy will be lost in the form of heat. If the heat is not dissipated in time, the surface temperature of the heat source will be too high, which will cause its damage and affect the product. performance and use.

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The 5G era means an increase in power consumption, and it also represents a test for heat dissipation. Normally, a heat sink is installed above the heat source to guide the heat into the heat sink. The direct contact between the heat sink and the heat source is It is impossible to effectively dissipate heat, because there is a gap between the radiator and the heat source, and there is air in the gap, and the air is a poor conductor of heat, and the heat transfer efficiency from the radiator surface to the radiator is reduced, resulting in poor cooling effect. Unable to achieve expected results.

In order to effectively solve the problem of poor heat dissipation, thermally conductive materials have also emerged. Thermally conductive materials are the general term for many thermally conductive media materials, including thermally conductive silicone sheets, thermally conductive silicone cloth, thermally conductive insulating sheets, thermally conductive gels, thermally conductive pastes, and silicon-free thermally conductive materials. Sheets, thermal pads, thermal phase change materials, etc., and each thermal material has its advantages and areas of expertise. But here, Ruiwei New Materials recommends materials for heat dissipation in medical industry equipment: thermally conductive silicone sheet and thermally conductive gel, which are mainly used between the radiator and the heat source to fill the gap between the interfaces and eliminate the air between the interfaces. Reduce contact thermal resistance, improve heat transfer efficiency, thereby improving heat dissipation effect.

Thermally conductive silicone sheets are used to fill the air gap between the heat-generating device and the heat sink or metal base. Their flexible, elastic characteristics allow them to be used to cover very uneven surfaces. The heat is conducted from the separate device or the entire PCB to the metal casing or the diffusion plate, which can improve the efficiency and service life of the heat-generating electronic components.

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Product features of thermal silica gel sheet:

1. Good thermal conductivity;

2. With self-adhesive without additional surface adhesive;

3. High compressibility, soft and elastic, suitable for low pressure applications;

4. Various thickness options are available.

Thermally conductive gel has good thermal stability and electrical insulation, flexibility, elasticity and other characteristics, so that it can be used to cover very uneven surfaces, and does not produce small molecules after curing, can reduce temperature and external pressure, and is provided in liquid form Various thicknesses. An automatic dispensing system can be used, which saves time and worry, and greatly reduces the stress on the components during the assembly process. It may be a little helpless for some irregular heating elements, but the thermal conductive gel can solve this problem very well. Condition.

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