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Customer-focused

We are dedicated to building solid partnerships and providing flexible solutions to enable our customers' success. We are adaptive and agile and help customers anticipate and prepare for unexpected changes.

 
 
 

Complete product range

CNC milling, CNC turning, aluminum die casting, magnesium die casting, zinc die casting, sheet metal fabrication, plastic injection, extrusion(contract), Heat sink(Thermal Solution)

 
 
 

Quality assurance

We prioritize delivering high-quality services, and our output is subjected to quality checks to ensure that our clients receive the best possible services.

 

 

What is Liquid Cold Plate

 

 

A Liquid Cold Plate (LCP) is responsible for efficiently transferring heat from surfaces with high heat loads to the fluid used within a liquid cooling system. The performance of the liquid cold plate is critical in defining the overall effectiveness of a liquid system.

 

 

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Benefits of Liquid Cold Plate
 

Excellent thermal performance
The primary advantage of liquid cold plate heat sinks is their superior cooling performance. The high thermal conductivity of water allows for efficient heat transfer from the hot electronics to the water, which is then carried away from the device. Liquid cooling provides an effective way to dissipate high levels of heat, which makes it ideal for overclocking and high-performance applications. By using water to cool the components, liquid cooling systems can reach lower process temperatures and prevent thermal throttling, which can significantly improve the performance and lifespan of the device.

 

High heat dissipation efficiency
In terms of efficiency, liquid cooling systems are superior to traditional air cooling systems. When compared to air cooling, liquid cooling systems can achieve a much more efficient cooling rate, allowing for lower cooling costs and increased sustainability. The circulation of water in the system is a closed loop, meaning that the water is not lost or consumed during operation. It is reused continuously, which makes it more environmentally friendly and reduces the overall cost of ownership.

 

Ecology
Liquid cooling systems are much more ecological than traditional air cooling systems. Liquid cooling systems are able to operate at much lower sound levels than air cooling systems, Because air radiators require fans to dissipate heat, while water-cooled plate radiators do not require fans. During water circulation, the noise of the water pump is smaller than that of the fan.making them ideal for use in quiet environments like offices and bedrooms. Additionally, water is used as the heat transfer medium, which is a renewable resource and leaves no carbon footprint. Liquid cooling systems are also more energy-efficient than air cooling systems, which often require power-hungry fans to operate.

 

Durability
Liquid cooling systems are also more durable than air cooling systems. Since airflow is not required to transfer heat from the device to the cooling system, liquid cooling systems are not affected by dirt, dust, or other airborne pollutants. Additionally, liquid cooling systems can operate at lower noise levels since they don't require active cooling fans. This helps reduce wear and tear on the system and improves the overall lifespan of the device.

 

Stable heat dissipation
Water cooled plate radiators do not generate "hot spots" like air radiators, so the cooling effect will not be affected as a result. This means that the water-cooled plate radiator can ensure smooth heat dissipation when cooling electronic products, without sudden heat accumulation.

 

How is a Liquid Cold Plate used?

A Liquid Cold Plate is made from a metal plate with high thermal conductivity (such as aluminium or copper) that is in direct contact with hot components. The Liquid Cold Plate is designed to have a high surface area to increase heat transfer. The heating components are mounted directly on the Liquid Cold Plate for an efficient thermal transfer. The heat is drain out of the Liquid Cold Plate thanks to a fluid circulating through the Liquid Cold Plate. Then the fluid is cooled outside of the Liquid Cold Plate thanks to a heat exchanger.

The Liquid Cold Plates are a part of a global management system composed of:

Pump for the fluid

The pump needs to be dimensioned following the global thermal management system (size of the Liquid Cold Plate, heat to dissipate, kind of fluid used, etc).

Fan and heat exchanger plate

This part of the system is required to cool down the fluid heated in the Liquid Cold Plate. The fluid is circulating through the heat exchanger plate, and cooled by air transfer force by a fan.

Liquid Cold Plate
Liquid Cold Plate

Tubing

Used to connect the pump to the Liquid Cold Plate and to the heat exchanger and compression tank.

Decompression tank

As the fluid temperature changes, the volume changes too. That is why a decompression tank is required. It will avoid over-pressure in the thermal management system.

 

What are Liquid Cold Plates Made of?
 

Material of the Liquid Cold Plate:

The main material used for Liquid Cold Plate is aluminium (AL6061 or AL6063) because it has good thermal conductivity, it is easy to manufacture and raw material price is lower than copper. For specific parts of the Liquid Cold Plate, we can use copper for its high thermal conductivity properties, especially for tubes.
The connectors of the Liquid Cold Plates are mainly made with brass, because it is easy to CNC machine and to braze.

Surface treatment (total or partial) can also be made (for example Surtec 650, or anodizing).
Other material as EPDM, silicone or polyurethane foam, can be used for electric insulation or IP(fluids or particles) sealing on a Liquid Cold Plate.

Cooling fluids used:

The main fluid used in Liquid Cold Plates is water (or glycol/water). Indeed, water provides superior cooling performances in a Liquid Cold Plate. On the other hand, because of freezing temperature around 0°C and boiling point around 100°C, this fluid might limit the operating temperature range of the Liquid Cold Plate.
That is why it can be mixed with glycol to reduce freezing risks and increase thermal performance.
Other fluids can be used, but some might provide lower thermal performance in a Liquid Cold Plate. The compatibility with the material used for the Liquid Cold Plate or the tubes is also to keep in mind to avoid any corrosion risk.You can find below the compatibility between the different Liquid Cold Plate materials and the fluids.

 

How Do Liquid Cold Plates Work?

 

Heat Absorption Process
The process begins with the electronic component generating heat during operation. The heat is conducted from the component into the base material of the liquid cold plate. The plate is typically made of highly conductive metals, like aluminum or copper. The base material acts as a heat spreader. It distributes the heat more evenly across the surface of the cold plate.
Embedded within the cold plate are channels or tubes through which the cooling fluid flows. The coolant absorbs the heat from the hot spots. This cools the base material and the attached electronics. The heated coolant is then pumped out of the cold plate to a heat exchanger. There, it releases the absorbed heat before returning to the cold plate to continue the cooling cycle. This circulation is often facilitated by a pump that ensures a constant flow of coolant through the system.

 

Thermal Conductivity And Performance
The liquid cold plate’s material’s thermal conductivity is crucial. Higher conductivity means better heat transfer to the coolant. This is why materials like copper have a thermal conductivity of up to 401 W/mK. They are preferred for applications needing high cooling performance. But, aluminum is more commonly used due to its lower cost and lighter weight.

 

 
Types Of Liquid Cold Plates
 
 
Embedded Tube Cold Plates

Embedded tube cold plates consist of a metal base (typically copper or aluminum) with tubes embedded within. The coolant flows through these tubes, absorbing and dissipating heat. This type of cold plate is relatively simple in construction and manufacturing, making it cost-effective. However, due to the longer heat conduction path, the thermal resistance is higher, making it suitable for applications with moderate cooling requirements.

 
Brazed Cold Plates

Brazed cold plates are constructed by stacking multiple thin metal sheets (usually copper or aluminum) and brazing them together to form intricate liquid channels. This design allows for greater flexibility in channel layout, resulting in improved thermal performance due to shorter heat conduction paths. Brazed cold plates are ideal for high-performance applications, such as power electronics and high-performance computing, where superior cooling is essential.

 
Extruded Cold Plates

Extruded cold plates are manufactured by extruding aluminum or copper into specific shapes with internal channels for the coolant. These cold plates offer good thermal conductivity and lower manufacturing costs, making them suitable for medium-demand cooling applications, such as servers and communication equipment.

 
Bonded Fin Cold Plates

Bonded fin cold plates feature a base plate with fins bonded to it, increasing the surface area for heat transfer. These fins can be made from various materials, including copper and aluminum. The increased surface area enhances the cooling efficiency, making bonded fin cold plates suitable for applications requiring efficient heat dissipation, such as power electronics and renewable energy systems.

 
Hybrid Cold Plates

Hybrid cold plates combine different cooling technologies to achieve optimal performance. For instance, a hybrid design might integrate stamped channels with microchannels to enhance thermal performance while maintaining cost-effectiveness. These cold plates are versatile and can be customized for specific applications with unique cooling requirements.

 
Microchannel Cold Plates

Microchannel cold plates feature tiny channels etched or machined into the plate, allowing coolant to flow through these microchannels. This design provides an extensive surface area for heat transfer, resulting in excellent cooling performance. Microchannel cold plates are ideal for applications with high heat flux, such as high-power laser systems and advanced computing devices.

 
Composite Cold Plates

Composite cold plates utilize a combination of metals and non-metals, such as graphite or carbon fiber, to create a lightweight yet highly efficient cooling solution. These materials offer superior thermal conductivity and structural strength, making composite cold plates suitable for weight-sensitive and high-performance applications, including aerospace and military equipment.

 

 

 
Selecting The Right Liquid Cold Plate
 
01/

Thermal Performance
The primary consideration when selecting a liquid cold plate is its thermal performance. Evaluate the heat dissipation requirements of your application and choose a cold plate type that can effectively handle the thermal load. High-performance applications, such as power electronics or high-performance computing, often require brazed or microchannel cold plates due to their superior thermal conductivity and efficiency.

02/

Manufacturing Cost
Different types of liquid cold plates have varying manufacturing costs. Embedded tube and extruded cold plates are generally more cost-effective, making them suitable for budget-conscious applications with moderate cooling needs. Conversely, brazed and composite cold plates tend to be more expensive but offer enhanced thermal performance, justifying the investment for high-demand applications.

03/

Size And Weight
In certain applications, such as aerospace and military, size and weight are critical factors. Composite cold plates are an excellent choice for these scenarios due to their lightweight and high-strength properties. For applications where space and weight are not as restrictive, other types of cold plates, such as embedded tube or extruded, can be considered based on performance and cost requirements.

04/

Installation And Maintenance
The complexity of installation and maintenance should also influence the choice of a liquid cold plate. Simpler designs, like embedded tube and extruded cold plates, are easier to install and maintain. In contrast, more complex designs, such as brazed and microchannel cold plates, may require specialized skills for installation and maintenance. Consider the availability of technical expertise and resources when making your selection.

05/

Fluid Compatibility
The type of coolant used in the system and its compatibility with the cold plate material is an important consideration. Common coolants include water, glycol mixtures, and oils, each with specific compatibility requirements. For instance, if using water as a coolant, ensure the cold plate material offers good corrosion resistance to prevent degradation over time.

06/

Operational Environment
The operational environment, including temperature, humidity, and potential exposure to corrosive elements, should be considered when selecting a liquid cold plate. High-temperature or high-humidity environments may necessitate cold plates made from materials with superior thermal and corrosion resistance. Additionally, applications exposed to corrosive elements may benefit from composite or specially coated cold plates to ensure longevity and reliability.

 

What is Heat Exchanger

A heat exchanger is a system used to transfer heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact.

Heat Exchanger

 

 
Benefits of Heat Exchanger
 
 
Enhanced Energy Efficiency

Heat exchangers play a critical role in increasing energy efficiency in industrial operations. They play an important role in collecting and recycling energy that would otherwise be wasted by enabling the transmission of heat across fluids. This not only decreases total energy consumption but also lowers operational expenses, promoting industrial sustainability and economic feasibility. Because of its capacity to capture and recycle thermal energy, heat exchangers play an important role in fostering resource-efficient and cost-effective industrial practices.

 
Temperature Control

Accurate temperature control is critical in a wide range of industrial applications, and heat exchangers have emerged as important instruments for attaining this aim. These devices provide precise temperature adjustment by effectively regulating the heat content of fluids. Heat exchangers, whether used in cooling or heating processes, ensure that industrial activities stay within the temperature parameters prescribed. This rigorous control not only optimizes ultimate product quality but also maintains consistency, making heat exchangers indispensable for meeting demanding temperature regulations in a variety of industrial situations.

 
Reduced Environmental Impact

Efficient energy utilization not only improves financial outcomes but also plays an important role in promoting environmental sustainability. Heat exchangers actively contribute to reducing greenhouse gas emissions by preserving energy and reducing the need for further fuel usage. This is in line with the growing emphasis on environmentally friendly industrial practices and reflects the critical role heat exchangers play in the development of greener, more sustainable industrial processes.

 
Space and Weight Savings

In comparison to other heat transfer technologies, heat exchangers stand out for their small and lightweight construction. This characteristic is extremely useful in industrial facilities where space is limited, solving the issues of congested or space-constrained situations. Space utilization efficiency not only improves operational flexibility but also has a favorable impact on transportation costs and logistics. Heat exchangers’ lower weight simplifies handling and transportation, adding to overall efficiency in industrial operations.

 

 

Common Heat Exchanger Applications

Heat exchanger applications include power generation in power plants, heating and air con systems, refrigeration, manufacturing, food processing, chemical processing, car radiators and many others.

 
 

At home

Around the home, they’re commonly found in central heating combi boilers and help to heat and cool down the water efficiently and safely. They’re also found in your refrigerator, ensuring it stays at a stable, cool temperature.

 
 
 

Public Spaces

You’re also likely to have benefited from heat exchangers in public places. Your local swimming pool would be much colder without a heat exchanger helping to keep the water warm.

Car engines produce a lot of heat and this needs to be managed effectively to prevent dangers. Cars often use a combination of fans and air flow, with fins to dissipate heat, and the use of a coolant fluid.

 
 
 

Industrial

Heat exchangers are also used widely in different industrial applications. This includes power generation, the manufacture and storage of food, chemical engineering, and even in the running of air and marine transport, for example.

 

 

 
Our Factory
 

Dongguan PowerWinx Metal Industries Co.,Ltd is a leading industrial manufacturer and service-oriented organization, specializing in precision metal, plastic and assemblies. We manufacture products from individual components to complete assemblies. Our capabilities include: Design & Tooling Fabrication Die Casting & Extrusion CNC Machining CNC Lathes Sheet Metal Fabrication Plastic Injection Thermal Solution and Assemblies Prototype We partner with OEM companies helping them optimize their cost of manufacturing using our engineering and manufacturing services. Our customer includes in the following industries: Medical Semiconductor Automation Telecommunications Renewable Energy Industries Application

We are dedicated to building solid partnerships and providing flexible solutions to enable our customers' success. We are adaptive and agile and help customers anticipate and prepare for unexpected changes.
Our talented global team is dedicated to delivering end-to-end product lifecycle solutions at the lowest total cost of ownership – enabling our customers to keep their commitments and stand out in their markets.
Our expertise is in design and engineering, components manufacturing and supply chain management services. Our suite of solutions spans the entire product lifecycle – from design, Manufacturing Processes, through to delivery. By understanding the unique complexity of each customer's business, we develop customized solutions that drive product innovation, cost savings, supply chain efficiencies and improved time-to-market.

We offer our customers an extremely efficient global network including 6 strategically located specialized centers of excellence focused on meeting our customers' needs. This strategic network provides our customers with the flexibility they need to respond quickly to changes in end-market demand. Our customer portfolio spans the enterprise, communications, consumer, aerospace, industrial, alternative energy and healthcare end-markets.

 

PowerWinx

 
Our Certificate
 

ISO9001, IATF 16949, ISO14001

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Asked Questions
 

 

Q: How do liquid cold plates work?

A: A liquid cold plate (LCP) serves as a critical interface within a liquid cooling system, guiding pumped fluid to heat sources and transferring waste heat into the coolant for subsequent cooling. Cold plates feature a heat source mounting surface, internal passages for liquid to pass through, and an inlet and outlet.

Q: What is the thermal resistance of a liquid cold plate?

A: A cold plate's thermal resistance is usually in the range of 0.05 to 0.25°C/W, depending on size and material.

Q: What is the method of refrigerating cold plates?

A: Cold plate cabinets are built with condensing units and evaporator coils. When the cabinet is plugged in, the condensing unit sends refrigerant through the walls by way of the copper evaporator coils and it freezes the walls.

Q: What is the principle of cold plate?

A: Cold plates are typically made from metal, with flow paths machined into them for a heat-transfer fluid to flow through. As the plates absorb electrical waste heat, they dissipate it through the flow paths using liquid cooling.

Q: How does a cooling plate work?

A: The cold plate is designed to have a high surface area to increase heat transfer. The heating components are mounted directly on the cold plate for an efficient thermal transfer. The heat is drain out of the cold plate thanks to a fluid circulating through the cold plate.

Q: What is the difference between a cold plate and a heat exchanger?

A: A heat exchanger is a device that is used to transfer thermal energy from one fluid to another. The process involves two fluids. On the other hand, a cold plate involves only one fluid that is used to cool (or heat) a system.

Q: How to choose a cold plate?

A: To select the best cold plate for your application, you need to know the cooling fluid flow rate, fluid inlet temperature, heat load of the devices attached to the cold plate, and the maximum desired cold plate surface temperature, Tmax.

Q: How to design a cold plate?

A: Engineers design cold plates with the help of mathematics and computational software; they select materials, optimize flow dynamics, and evaluate heat exchanger efficiency. Engineers focus on achieving optimal heat exchanger performance for the liquid cold plate designs and overall system thermal stability.

Q: What is the advantage of liquid cold plate refrigeration?

A: Liquid cooling in liquid cold plates is more efficient than air cooling due to liquids' higher thermal conductivity compared to air. This allows for faster heat dissipation and more effective temperature control, making liquid-cooled cold plates ideal for applications where precise temperature regulation is crucial.

Q: What is the difference between a heat sink and a liquid cold plate?

A: The primary difference between heat sinks and liquid cold plates is the addition or lack of fins. Heatsinks have fins of varying sizes protruding from a metal plate. Liquid cold plates are finless and made of a thicker metal plate. Both styles are suitable for application in a broad array of ac-dc or dc-dc power supplies.

Q: What are the common problems with heat exchangers?

A: Easily the most common problem that heat exchangers experience, cracks are the result of repeatedly overheating and cooling the exchanger. This process of unrelenting heating and cooling stretches and stresses the metal of the exchanger. These stressed points crack open and cause further problems.

Q: How often do heat exchangers need to be replaced?

A: Furnaces usually last between 15 and 20 years. If your heat exchanger fails when the furnace is 10 years old or more, it might be best to purchase a new furnace rather than replace the heat exchanger.

Q: What is one of the signs of a bad heat exchanger?

A: When your furnace kicks on, you may notice a dusty odor as the air first moves through the ducts and vents. Within a few minutes, the smell should disappear. If you notice strange smells, like formaldehyde or any other strong chemical smell, it strongly indicates that your heat exchanger is cracked.

Q: What happens if a heat exchanger gets too hot?

A: Without enough airflow to carry heat away, the heat exchanger overheats in excess of safe operating temperatures. Such overheating can cause premature metal fatigue and lead to stress cracks throughout the heat exchanger.

Q: What is the life expectancy of a heat exchanger?

A: A heat exchanger can, however, often last for 15 to 20 years or more with good care and normal operating circumstances.

Q: What causes a heat exchanger to go bad?

A: Clogged filters reduce the air flow that result in development of cracks inside the system. Other reasons for reduced air flow are the dirty fan blades, dirty duct work, and obstructed air vents. All of these factors can cause major damage to the heat exchanger.

Q: Is it worth repairing a heat exchanger?

A: So, if your furnace is still under its labor warranty, we definitely recommend replacing just the heat exchanger since most of the repair cost will be covered under warranty. But if your furnace is no longer under the labor warranty and it's over 10 years old, you might as well just replace the furnace completely.

Q: Can you run a furnace with a cracked heat exchanger?

A: Continuing to operate a furnace with a cracked heat exchanger can lead to complete system failure. The additional strain on the furnace components can cause other parts to fail, necessitating costly repairs or replacement.

Q: How do you know if you need a new heat exchanger?

A: Your furnace might stop working if you're lucky, but most often, it will keep running even with a crack, allowing carbon monoxide to seep into your house. The only signs that you have a damaged heat exchanger are no heat during the winter, reoccurring flu-like symptoms, or a beeping carbon monoxide detector.

Q: How do I know if my heat exchanger is working?

A: Faulty boiler heat exchanger symptoms
Noises coming from boiler. If you have started to notice strange noises coming from your boiler, this may be indicative of a faulty heat exchanger. ...
Leakages. Noises from the boiler can be a sign of a build-up of debris in the heat exchanger. ...
Dirty radiator water.

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