How to deal with the heat accumulation problem of inductor coils.
For most electronic products, as they operate, they will continuously generate heat. When the temperature rises beyond a certain limit, it may possibly lead to a reduction in the performance of the electronic product or even make the product unable to work, and electronic components may burst and cause a fire. In order to ensure the normal operation of electronic products, it is necessary to control the temperature of the circuit within an appropriate temperature range. And the inductor coil is a very common electronic component in electronic products. So how to deal with the heat accumulation problem of the inductor coil?
1. The most common way to deal with heat accumulation is physical heat dissipation, and the most effective and reliable physical heat dissipation method is to adopt air cooling and radiators. Air cooling and radiators can change the air around the inductor coil through exchange, replacing hot air with cold air to cool various high-heat electronic devices and reduce the impact of heat on the circuit. Taking a computer as an example, through the heat sink of the air cooling and radiator, the high-temperature CPU during operation can be controlled at 35 to 45 degrees Celsius for a long time. Of course, the disadvantages of air cooling and radiator are that they will generate vibrations and noise, and they are only applicable to relatively large-sized computers, automotive parts equipment, frequency converters, hardware tools, refrigeration equipment and other traditional or modern equipment.
2. Thermally conductive adhesive and thermal grease are also common heat dissipation materials for inductor coils, with excellent thermal conductivity. Their role is to be smeared on the surface of the inductor coil to fill the gap between the inductor coil and the radiator, so that the two can be in full contact, and the heat can be effectively conducted to the radiator. The radiator absorbs the heat and then dissipates it outside the circuit to keep the temperature of the circuit normal. Secondly, the thermal grease has stable chemical properties such as thermal conductivity, temperature resistance, and insulation, which is an effective means to improve the heat dissipation ability and stability of electronic components.
3. The specific heat capacity of liquids is generally relatively large, so water-cooled radiators have more high-performance heat dissipation capabilities compared to traditional air-cooled radiators. The water-cooled radiator indirectly contacts the inductor coil or other electronic elements through the coolant, and the radiator is responsible for absorbing these heats to ensure the normal temperature of the circuit. The advantages of water-cooled radiators are that they are quieter, have stable cooling, and have less dependence on the environment. The disadvantages are that the stability is poorer than that of air-cooled radiators, the cost is also relatively high, and the volume and weight are relatively large.
4. Every electronic element in every circuit has a thermal impedance, and the magnitude of the thermal impedance value can reflect the magnitude of the heat transfer ability between the medium or the media. The value of the thermal impedance varies due to different materials, external areas, uses, and installation positions. Using a thermal impedance electronic element with large thermal conductivity is the most traditional and effective method to reduce the heat conduction of the inductor coil.
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