[Heat sink](https://www.automation24.ir/product-969/%D9%87%DB%8C%D8%AA-%D8%B3%DB%8C%D9%86%DA%A9 -%D8%AA%D9%83%D9%81%D8%A7%D8%B2)
Heat sinks are used as cooling in circuits. Almost all electronic components that draw current and are subject to overheating require a heatsink. Heat sinks can be seen in inverters, UPS and other cases. In general, it can be said that the parts that have a lot of noise, disconnection and connection, or strong harmonics need a heatsink. Heat sinks play an important role in cooling equipment. For example, if the heat sink is not used in SSRs, especially SSRs that have a lot of current, to dissipate heat, after a while the SSR will become defective, or in inverters, if the heat sink is not dissipated well, the inverter will have a temperature alarm. they give
Reasons for using a heat sink:
In general, heat sinks should have features, the most obvious of which is heat dissipation or cooling. The heat sink removes this heat from the system due to its shape and its interaction with the surrounding air. You know that heat, especially if it is high, is considered as a destructive factor in electrical and electronic parts and systems and causes high friction of the device and its components.
This unwanted heat may even cause a part of the device to burn, which may cause the entire device to fail. For this reason, heat removal from the used parts plays an important role in the stability of the system.
Heatsinks can be made of different materials. Depending on the amount of heat and the degree of importance of its disposal, the cost of preparing the heat sink varies. Metals are good conductors of heat and electricity, but we cannot use any metal for a heatsink. Gold has the best conditions for heat dissipation, but it is not economically justified, also copper has a good composition for heat dissipation, but due to its high density, in terms of final weight, it uses a lot of weight to make the heat sink, and hence the price Its finish is also high. Today, in the world, aluminum metal with atomic number 13 is used in the construction of heat sinks.
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Advantages of using aluminum to make heat sinks:
Relatively cheap price
There are plenty everywhere
It is easily combined with other alloys
High plasticity
Things to know when buying a heat sink:
Allowable heat sink current
Heat sink dimensions
Heat sink weight
How to install the heat sink
Heat sink material
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