DE20018042U1 - Active mini cooling for home PCs - Google Patents

Description

Description

Active mini cooling system for home PCs

Computers are usually only cooled by a fan that is glued directly to the processor. As computers become more powerful, the amount of waste heat produced becomes greater and greater. This will be the case with the next generation of home PCs.
If home PCs are not in air-conditioned rooms, there is additional heat coming in from outside in the summer because these computers often work under thermally unfavorable conditions, e.g. standing under a table.

This problem is solved with the device specified under claim 1.

The invention enables home PCs to operate even at outside temperatures that are higher than the inside temperatures.

The active refrigeration system integrated into the computer works according to the principle of a compressor refrigeration machine and has only one circuit. This consists of four main parts: compressor, condenser, throttle element and evaporator. These four components are connected by pipes and form a hermetic system in which coolant circulates. The circuit also has a filter dryer to bind moisture and dirt particles.
The refrigerant circulates continuously in the circuit without consuming any material and is subject to various changes in state. Refrigerant vapor is sucked in by the compressor at low pressure and low temperature and brought to a higher pressure. This is followed by the deheating of the refrigerant vapor, which has been heated up considerably during compression, in the condenser and then the condensation at high pressure.
After the condensation with heat release is completed, the refrigerant is subcooled in order to at least partially compensate for the resulting throttling losses.
The hypothermia increases the specific cold available. This
Increasing the size reduces the required circulating refrigerant quantity and thus directly influences the compressor size.
The refrigerant is then throttled.

The throttling is associated with a decrease in pressure and temperature. The coolant is now evaporated. The heat of evaporation required for this is extracted from the inside of the computer. After evaporation, the coolant is superheated.
The cycle now begins again.

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For this purpose, a single-plate heat exchanger (1) is glued to one of the inner walls of the computer case (7). The softness of the wall depends on the components, i.e. the internal structure, of the computer.

The housing is divided into two areas.

In the upper part (8), as usual, the actual computer is housed, while in the lower part (5), which cannot be seen from the outside and is separated by an intermediate floor (6), the compressor (4) as well as the condenser (2) and, if necessary, a condenser fan (3) are housed.

The refrigerant compressor is extremely small and can also be cooled statically, i.e. without a fan. The refrigeration circuit then works as described above.

The housing is continuous. The division into sections is not visible from the outside

The resulting condensation water is collected in a tray (9) below the evaporator and fed via a tube (10) into an evaporator tray (11) which sits on the compressor.

Here the condensation water is evaporated by the compressor heat.

Figure 1 shows the side view
Figure 2 shows the top view

Claims (2)

1. Active micro-cooling system for home computers, characterized in that the single-plate evaporator is glued to an inner wall of the computer case. 2. Active micro-cooling system for home computers according to protection claim 1, characterized in that a 24 V micro-compressor and a condenser are located in the lower section of a two-part computer housing and are cooled statically or dynamically.