Heat-Pipes
Heat-Pipe Heat Sinks
Heat-pipes
heat-pipe tech
Heat pipe (HP) is celebrated as an excellent heat transfer component, consisting of three
parts called evaporating section, adiabatic section and condensation section. The main part
is a sealed metal tube in which the air and other impurities must have been excluded out to
maintain a micro-negative pressure and certain working fluid was filled in. When in
operation, the liquid near heat source section evaporates after absorbing heat and becomes
vapor, which carries latent heat and flows to the condensation section. After releasing heat
through HP shell and outer cooling medium, the vapor then rechanges into liquid, which
flows back into evaporating section at the pressure of capillary structure, and starts another
working cycle. For the super heat transfer capability endued from its critically designed
capillary structure, HP can carry large quantities of heat from heat source instantly and it is
acclaimed super heat conductor.
product exhibition
(1)Product Exhibition
WTL Sintered wick heatpipe
WTL Axial grooved wick
straight heatpipe
WTL Axial grooved wick
elbow heatpipe
(2)Product Parameter
Item
Heat Pipe Length(mm)
Container Materials
Capillary Structure
Working Fluid
Designed Operating
Temperature(℃)
Designed Operating
Inclination Angle(°)
Heat Transfer Capacity (Qmax)
Isothermal Test
Heat Resistance (℃/W)
Parameter
230~900
Cu
Axial grooved wick / Sintered wick / Screen wick
WTL Cooled Medium
20~200
α> 5
50~1000w (depends on the product specs)
When heating in 50℃ water bath, the temperature difference
between Evaporator section and adiabatic section is less than
2℃
< 0.08 (as reference)
Principle of Heat Transfer
Capacity Test
Testing Requirements
1)Heating input-power is supplied by the special delicate
power adjustment;
2)heat pipe is placed with a α inclination angle;
3)when the fluctuate of the supervisory temperature on the
outer shell is within 0.5℃ in 5min, the heat transfer process
reaches its balance and the maximum heat transfer capacity
(Qmax) is also defined simultaneously.
(3)Sample Charts of Heat Transfer Characteristics Test
Fig.1 Heat Transfer Capacity Test of HP with 700mm Length
Fig.2 Isotherm Test of HP with 700mm Length
Heatpipe Product exhibition
Heat Pipe Working Principle
Heat Pipe Exhibition
Heat-pipe heat sink
heat-pipe heat sink brief
Heat pipe heat sink (HP heat sink) was generated by combination of HP technology and
expansion fin heat dissipating technology. Compared with the traditional pure aluminum
heat sink, HP heat sink is superior in its heat transfer capacity and efficiency per unit volume,
which makes it an appreciated heat dissipating product.
By exclusively introducing most advanced HP technology and process, WTL has been
researching, developing and manufacturing numerous of new products for various of users.
The products, such as HP heat sink for power devices and HP heat sink for explosion-proof
circumstance and etc, have been widely applied in such fields as high speed locomotive,
railway, oil, chemical, coal, medium-voltage and high-voltage inverter and etc., and widely
accepted both in domestic and abroad.
Some products of our heat pipe heat sink are in the picture.
Heatpipe Heat Sink For Silicon Controlled
1、Heatpipe Heat Sink For Silicon Controlled
With the fast development of the power and electronic industry, it is obvious that the large
scale integration, assembly modularization and volume minimization are becoming a trend
in integrated circuits, resulting in the increasingly larger dissipating heat of the power
devices (such as silicon controlled rectifier SCR, silicon transistor, IGBT and etc.) Accordingly,
higher requirements are put forward for the heat sink. To satisfy the requirements of the
large heat dissipation, the HP heat sink with compact design is found to have higher
efficiency, smaller volume and lighter weight, when compared with the traditional pure
aluminum heat sink.
WTL produces the HP heat sink (following the national standard) for the power devices, such
as the SCR (Refer to the Fig.1 and Fig 2).
Fig.1 Series Parallel Connection Composite
System
Fig.2 Six-phase Semiwave Rectification
Circuit Composite System
Heatpipe Heat Sink for Inverter Arc Welding Source
(1)Product Exhibition
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
heat dissipating for inverter arc welding source
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) According to customer requirements
Thermal Resistance((℃/w) ≤0.09
Substrate:Al
Materials
Fin: Al
HP shell: Cu
Type of cooling
Forced air cooling
Outline Structure
HP Heat Sink For Medium/High Voltage Inverter
(1)Product Exhibition
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
Heat Sink For Medium/High Voltage Inverter
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) According to customer requirements
Thermal Resistance((℃/w) ≤0.015
Substrate: Al/Cu
Materials
Fin: Al/Cu
HP shell: Cu
Type of cooling
Forced air cooling
HP heat sink for Plating Power Supply
(1)Product Exhibition
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
Heatpipe heat sink for Plating Power Supply
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) According to customer requirements
Thermal Resistance((℃/w) ≤0.03
Substrate: Al/Cu
Materials
Fin: Al
HP shell: Cu
Type of cooling
Forced air cooling
Outline Structure
HP Heat Sink For Mining Explosion Proof Inverter
(1)Product Exhibition
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
Heatpipe Heat Sink For Mining Explosion Proof Inverter
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) 500~20000
Thermal Resistance((℃/w) ≤0.015
Substrate:Al/Cu
Materials
Fin: Cu
HP shell: Cu
Type of cooling
Natural cooling/Forced air cooling
HP Heat Sink For VVVF Inverter、SIV Auxiliary Power Unit
(1)Product Exhibition
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
Heatpipe Heat Sink For VVVF Inverter、SIV Auxiliary Power Unit
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) 1500~3000
Thermal Resistance((℃/w) ≤0.03
Substrate:Al
Materials
Fin: Cu
HP shell: Cu
Type of cooling
Natural cooling
Heatpipe Heat Sink For SVC/SVG
(1)Product Exhibition
SVC
SVG
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
Heatpipe heat sink for SVC/SVG
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) According to customer requirements
Thermal Resistance((℃/w) ≤0.045
Substrate: Al
Materials
Fin: Al
HP shell: Cu
Type of cooling
Natural cooling/Forced air cooling
Heatpipe Heat Sink For APF
(1)Product Exhibition
(2)Product Parameter
1. High heat dissipating efficiency, low thermal resistance, light
weight; having larger heat dissipating capability when compared
Features
with the normal pure aluminum heat sink in the same volume;
2. Simple structure and compact design; easy installation and
low maintenance costs.
Application
Heatpipe heat sink for APF
Operation Temperature(℃) 20~200
Heat Dissipated Power(w) According to customer requirements
Thermal Resistance((℃/w) ≤0.045
Substrate: Al
Materials
Fin: Al
HP shell: Cu
Type of cooling
Forced air cooling