After using mobile phones and tablets for a period of time, their backs will heat up. If they are used for a long time, it may cause equipment damage. This situation can be seen frequently in daily life and work. If tablets and mobile phones both heat up to the point of burning hands, not to mention high-power devices such as pure electric vehicles, large machine motors, and drive motors, why do electrical devices heat up during operation?
The main reason why electrical equipment generates heat during operation is that when electricity is converted into target energy, it is accompanied by losses, and a large part of the lost energy will be dissipated in the form of heat. This situation is unavoidable, and high temperatures can damage the service life and performance of the equipment, so it is necessary to dissipate heat in a timely manner.
Installing a heat sink above the heat source of machinery and equipment is a commonly used method of heat dissipation, which purposefully guides heat to the heat sink. However, there is a gap between the heat sink and the heat source, which contains a large amount of air, resulting in a decrease in high thermal conductivity efficiency and poor heat dissipation effect of the heat sink. Therefore, thermal conductive materials need to be used to fill the gap between the heat source and the heat sink to reduce contact thermal resistance and improve thermal conductivity efficiency.
The internal design of high-power electrical equipment is complex and involves high electric field forces. Generally, the breakdown voltage resistance of thermal conductive materials is not high, which can easily cause insulation to break down due to electric field forces, resulting in the loss of effectiveness of thermal conductive materials. Therefore, some ultra-thin thermal conductive materials that can withstand high voltages are needed.
Thermal insulation material is a silicone polymer elastomer reinforced with glass fiber as the substrate. This insulation material can effectively reduce the thermal resistance between electronic components and heat sinks, and is electrically insulated with high breakdown voltage strength, good thermal conductivity, tear resistance, and other characteristics, which can effectively avoid accidents such as leakage and breakdown. At the same time, the thermal insulation material has strong temperature resistance, avoiding aging and deterioration due to prolonged overheating.
Thermal insulation materials have the characteristics of high insulation and ultra-thin, which can effectively prevent the phenomenon of breakdown of thermal insulation materials due to the increase of internal electric field force. Moreover, their ultra-thin thickness is suitable for equipment with small internal space and high power consumption, exerting the characteristics of thermal conductivity and anti breakdown, thereby improving the reliability and service life of equipment.