Natural convection where the movement of the fluid particles is caused by the local changes in density due to transfer of heat from the surface of a solid to the fluid particles in close proximity.
Different types of heat sinks.
Among the different types of heat sinks two phase forced convection cooling of high heat flux high power electronic devices is one of the most effective means of thermal management.
The heat sinks are classified into different categories based on different criteria.
There are two heat sink types.
As clumsy as this category might sound it really just includes solid metal heat sinks assemblies heat sinks using two phase devices and pumped liquid heat sinks.
Active heat sinks are used in liquid cooling system.
In most of computer processor a fan is attached just above the heat sink.
They are relatively inexpensive once a design is made the manufacturing is highly automated and in most cases aluminum is the material used.
Let us consider the major types namely active heat sinks and passive heat sinks.
The majority of heat sinks are made from extruded aluminum.
There are two distinct types of convection.
The picture is an example of a heat sink that has both active and passive cooling mechanisms.
Extruded stamped bonded fin and folded fin.
This utilizes power for cooling process.
Extruded heat sinks come at a low cost and custom specifications can be easily manufactured.
The pins can be cylindrical elliptical or square.
1 extruded heat sinks.
The process is useful for most applications.
A heat sink is a device that incorporates a fan or another mechanism to reduce the temperature of a hardware component e g processor.
The primary mechanism of heat transfer from the heatsink is convection although radiation also has a minor influence.
Extruded heat sinks are the utility infielder of our industry.
When the heat sink does not utilize a fan it is passive heat sink.
Here in part 1 we ll talk about the following heat sink types.
Solid metal heat sink.
Heat sinks categorized by use of water.
Types of heat sink active heat sink.
Let s take a look at 6 common heat sink types.
When the heat sink utilizes fan hsf it is active heat sink.
A pin is one of the more common heat sink types available on the market.
The performance of extruded heat sinks can range from low to high.
