TWM456680U - Pressure difference loop type heat spreader - Google Patents

Description

Differential pressure loop type heat spreader

This is a differential pressure loop type heat spreader. By combining the valveless pump concept to design the nozzle/amplifier, the working fluid can be circulated in a single direction in the pipeline and avoiding backflow, and only heat assist can be achieved. The structure is designed to be loop-type to enhance heat dissipation efficiency; the heat spreader can be applied to any heating element, and the condensation section is not limited to any condensation device.

On the market, the relevant heat spreader products avoid the burning of electronic components and cause burnt. Therefore, most of them are used to solve hot problems. However, after the hot spot problem is removed, the heat cannot be quickly taken away from the surrounding components, and the heat continues to accumulate above the heat spreader. When the limit is reached, the component burnout problem will reoccur and the current situation cannot be fully improved.

1. The differential pressure type heat spreader of this creation is designed with the valveless pump concept, and the nozzle/amplifier replaces the traditional check valve to prevent reverse flow of fluid.

2. The homogenizer is made of polydimethylsiloxane (PDMS), which is non-toxic and biochemically inert. It is used in the temperature range of -50 °C ~ 200 °C. It has elasticity, material stability and hydrophobicity. characteristic.

3. Using methanol as the working fluid to transfer heat, it can reach low temperature boiling at about 64.5 °C under atmospheric pressure, so that the working fluid can easily evaporate and move quickly to the condensation section to dissipate heat into a fluid and continuously circulate.

4. The differential pressure type heat spreader will be pumped to the vacuum state to reduce the boiling temperature of the working fluid to reach the normal temperature boiling, which can quickly absorb the heat energy and take away from the heating element.

5. The nozzle/amplifier concept is a tapered and divergent design for the inlet and outlet. When the volume of the chamber increases, the volumetric flow rate of the fluid flowing into the chamber is greater than that of the outflow, which is the water absorption mode;

The pressure difference loop type heat spreader of the present invention can be applied to electronic related products according to the design size. Referring to the first figure of the figure, the heating section of the heat spreader can be adhered to the electronic components that are easy to heat; the condensation section can be attached. Or placing a condensing device, when the working fluid stored in the heating section is continuously changed to a vapor state by the hot phase, the nozzle/amplifier of the outlet continuously moves into the fluid compensation chamber and the flow channel; the vapor enters When it reaches the condensing section, the condensing device removes the heat of the vapor and condenses into a liquid type, and flows back to the fluid compensation chamber and the heating section with the flow path; since the ends of the heating section are nozzles/amplifiers Designed to circulate fluid in a single direction, avoiding backflow.

(10) ‧‧‧heating section

(20)‧‧‧Condensation section

(30)‧‧‧ Fluid Compensation Room

(40)‧‧‧Nozzle/amplifier

(50)‧‧‧Flow channel

The first picture is a three-dimensional diagram of a differential pressure loop type heat spreader.

(10) ‧‧‧heating section

(20)‧‧‧Condensation section

(30)‧‧‧ Fluid Compensation Room

(40)‧‧‧Nozzle/amplifier

(50)‧‧‧Flow channel

Claims (3)

A differential pressure loop type heat spreader consisting of a heating section, a condensation section, a fluid compensation chamber, a nozzle/amplifier and a flow channel; a heating section, a condensation section, a fluid compensation chamber, a nozzle/amplifier The flow channel is connected to each other, and the heating section and the condensing section area are changed according to the surface area of the heat dissipating component; the fluid compensation chamber, the nozzle/amplifier are changed according to the working fluid content required by the differential pressure type heat spreader And the size of the flow channel. For example, according to the temperature range of use, the material of the heat spreader may be metal material, non-metal material or rubber material; the working fluid may be pure water, methanol and acetone. For example, the pressure difference loop type heat spreader mentioned in the scope of claim 1 and the condensers of several specifications in the condensing section are common for heat sink fins, fans and water-cooling devices; the fan of several specifications can be DC or AC, 3V 6,V, 9V, 12V are common.