Heat Pipe

晨怡热管 http://www.ccic.com.tw 2006-10-25 19:57:34

A heat pipe is an efficient heat transfer device commonly used for cooling an electronic component. A heat pipe is essentially a closed evacuated tube lined with a porous structure call "wick structure" (2 kinds of wick structure heat pipe CCI made, one is "screen mesh" and the other is "grooved"). The wick is saturated with a proper amount of working fluid.

The liquid phase of working fluid contained in the wick structure absorbs \ thermal energy from the heated section and becomes vapor filling the heat pipe chamber. Then the disspation of thermal energy at the condensing section causes the vapor to release latent heat and condense. The condensed working fluid is then sucked back to the evaporating section along the wick structure through the capillary force.

This thermodynamic cycle continues as the thermal energy is transferred from one section of the heat pipe to another. It's noted that will remain small temperature drop as the working fluid goes through the phase change inside the heat pipe chamber.

This thermodynamic cycle continues as the thermal energy is transferred from one section of the heat pipe to another. It's noted that will remain small temperature drop as the working fluid goes through the phase change inside the heat pipe chamber.

ITEM

SPECIFICATION

SHAPE

 ROUND

 

Ø3 ~ Ø8 mm

FLAT

t >=1.4 mm

LENGTH

80 ~ 400 mm

MAX. HEAT TRANSFER RATE

0 ~ 100 W

FAIL TEMPERATURE

ROUND

> 320 °C

FLAT

> 140 °C

THERMAL RESISTANCE

R >= 0.04°C /W

GUARANTY

3 Years

Cold Plate (Vapor Chamber)

Material: 1020 / 1100 Copper

Thickness: 5mm ~ 7mm

Size: Customer Design, A >= 50x50mm^2 is recommended

Working Fluid: H2O

Sealing: Argon welding

Function: Solve CPU power density issue on X-Y                        directions. Reduce the thermal resistance
                       between CPU  case to Heat Sink block.

Application: Be a heat sink block to contact hot surface especially the heat
                          source with high power density such as Intel Prescott CPU and
                          AMD K8 CPU.

Heat Plate Advantage


  • It can effective direct contact cooling& have compact design for space sensitive         applications.
  • Utilize vapor of body fluid hot to spread way , replace existing warm block ,reduce          spreader thermal resistance ,and then improve the systematic efficiency of
             whole heat dissipation.
  • Heat Column

    Material: 1020 / 1100 Copper

    Height: 50mm ~ 130mm

    diameter: D = 25.4 mm ( 1 in )

    Working Fluid: H2O

    Eivk Dytuvyutr : Powder

    Sealing: Argon welding

    Function: Solve CPU power density issue on Z directions,
                           Reduce the thermal resistance between CPU  case to
                           Heat Sink block.

    Application: Be a heat sink block to contact hot surface especially
                               the heat source with high power density such as
                               Intel Prescott CPU and AMD K8 CPU.

    Heat Column Advantage


  • Heat column helps to bring heat straight up. It allows maximum heat dissipation in the
             vertical direction with minimum footprint.
  • Higher heat flux density.
  • Works under any orientations, e.g., horizontal gravity aided and against gravity          better quality and more reliable.
  • Direct contact with CPU surface. Enable the thermal tower to be very efficient in          transfer the heat away for cooling.
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