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Liquid Cold Plates

Liquid Cold Plates

Heatell has been striving for 8 years in providing good quality liquid cold plates. All guaranteed fast and friendly customer support. Heatell is capable to be your great supporter and help you boost your brand market.

Heatell has produces the widest range of liquid cold plate fabrication and design in the thermal management industry.

Our global capabilities allow us to produce and develop quality liquid cold plates with more efficient and compact cooling. Heatell liquid cold plate is the best solution for high heat loads while reducing costs and maintaining design flexibility.

Your Professional Liquid Cold Plates Supplier and Manufacturer

We design and present to you the right type of liquid cold plate with your specific requirements. Inform us of the size and heat load of your device.

Liquid Cold Plates

At Heatell, we are offering not more than 0.02mm liquid cold plate surface flatness to be able to make perfect contact with your device.

Liquid Cold Plates

Item TypeLiquid Cold Plates
Plate materialAluminum alloy
Tube materialCopper, aluminum, or stainless steel
ShapesBased on your requirements.
Production ProcessAluminum plate cutting—CNC Grooves making—Embedding Tubes (Friction stir welding, Vacuum brazing)—Epoxy adhesive filling—CNC machining—Cleaning—Inspecting—Packing
Technicalextrusion, skived fin, stamping, cold forging, bonded fin, die-cast, liquid cold plates, folded fin
ApplicationInverter, Inverter, Power, IGBT, Rectifier, LED Lighting, Welding Machine, Communication Equipment, Electronics Industry,
Solid State Relay, Controller, Electromagnetic Heating
FinishAnodizing, Mill finish, Electroplating, Polishing, Sandblasted, Powder coating, Silver plating, Brushed, Painted, PVDF etc.
Deep processCNC,drilling,milling,cutting,stamping,welding,bending,assembling,Custom Aluminum Fabrication
MOQLow MOQ
Packagingstandard export packaging or as discussed
CertificateCE/SGS/ISO/Rohs
Service1. Free sample, Free design;
2. OEM/ODM available;
3. Custom-made request;
4. New design solution suggestion
Delivery time15-20 days after sample confirmed & down payment, or negotiated
PortShanghai Port
Our Advantagesuperior quality with competitive price, Certified enterprises in China

Liquid Cooled Heat Sink

Liquid Cooled Heat Sink

Our liquid cold plate is flawlessly manufactured in our state-of-the-art brazing technology. You are guaranteed airtightness liquid cold plates with no water leak.

Liquid Cold Plates

We produce custom liquid cold plates that can also save your tooling costs. Ask for a quote today!

heat sink profile testing

-Standard Packing Option-

* Express Delivery*
* Ocean Delivery*

-Loading & Shipment-

Heatell: Your Leading Liquid Cold Plates Manufacturer and Supplier in China

Heatell is your problem solver when you need to import liquid cold plates. Heatell, working in China is almost 8 years in providing system-level cooling solutions.

Heatell liquid cold plates are used in coexistence with a heat exchanger, pump, liquid lines, and heat sink. They are involving a typical liquid cooling loop.

We manufacture and design liquid cold plates for different industrial use. They have been a big role to play in automotive engine cooling, nuclear reactor cooling, and avionics thermal control. In many cases, valves and reservoirs are used to control the flow rate and fluid volume.

liquid cold plates advantage

Heatell liquid cold plate manufacturer, a team of thermal experts has been providing state-of-the-art liquid cooling techniques that are capable of sending complex issues.

We guarantee that Heatell liquid cold plates will bring a lot of advantages and benefits to your application. We offer an efficient and compact cooling method liquid cold plates for you. Additionally, our liquid cold plates are reliable, quiet, and leak-free.

heatsink manufacturer

Also, you can find in Heatell a liquid cold plate that is compatible with glycol, water, or other cooling fluids. Through the years, we are providing custom and standard liquid cold plates to most industries worldwide.

Heatell liquid cold plates are the best solutions for IGBT modules, high-powered electronics, wind turbines, lasers, motor devices, medical equipment, automotive components, and many other applications that require liquid cooling.

If you want custom liquid cold plates, please leave us your prototype, design, and verify your liquid cold plates. Our team will respond to many requests like “cool a curve body” and “improve corrosion resistance”.

Heatell can manufacture and design your liquid cold plates that are suitable for operating the environment and for your applications.

Email us now for further info!

Liquid Cold Plates: The Ultimate Guide

Liquid cold plates play an integral role in heat management system.

A reason this guide explores everything about liquid cold plates including benefits, features, working principle, design consideration and classifications.

So, if you want to learn more, keep reading.

1.  What Is Liquid Cold Plate?

Liquid cold plate

Liquid cold plate

A liquid cold plate is a metallic device that you can use to cool electronic machinery to below maximum operating temperatures.

A liquid cold plate comprises at least a block of metal, aluminum, copper, or steel, and metallic tubings.

The tubings are embedded inside the block and provide a pathway for fluid flow.

The metallic block is placed in contact with the electronic component that requires thermal cooling. It absorbs heat from the component and transfers it to the coolant liquid down to the radiator.

2.  Benefits Of Liquid Cold Plates

Liquid cold plates possess superior heat transfer properties to standard heat exchangers. The following are some of the benefits of liquid cold plates.

Effective Heat Transfer

Liquid cold plates are more effective in cooling electric components compared to other standard heat sinks such as air coolers.

Liquid cold plates are more effective heat exchangers and will efficiently reduce the component’s thermal heat compared to conventional heat sinks.

High Heat Flux And Heat Load

Liquid cold plates can transfer a large amount of heat from a component compared to other conventional cooling systems.

They are categorically highly suited for transferring heat from device components that produce a lot of heat, keeping your system at optimal operational temperatures.

Multiplicity

Unlike other conventional heat sinks, a single liquid cold plate can simultaneously cool more than one electronic component.

Liquid cold plates are also lighter and relatively smaller hence more ideal for applications with space limitations for device installation.

Adaptable To Varied Temperature Environment

You can use liquid cold plates in different electronic components which produce different quantities of heat.

These heat exchangers offer superior thermal management in high-heat environments and will less likely result in damage to electronic components.

Liquid cold plates are also very easy to set up and use compared to other types of air coolers.

3.  Applications Of Liquid Cold Plates

Liquid cold plate

Liquid cold plate

Liquid cold plates offer thermal management solutions in many industries where optimal operating conditions of high-end, high-powered electronics is mandatory.

Liquid cold plate technology has enabled the manufacturing of modernized devices that have a very high-power density and are more compact.

The liquid cold plate cooling technology is critical in the following industries and applications.

  • Medical equipment
  • Traction systems
  • Military equipment
  • Cooling of batteries
  • Renewable energy
  • Industrial power applications
  • Home appliances like refrigerators and building heaters
  • Traction systems
  • Automotive industry
  • aerospace industry
  • Communication industry
  • Lasers
  • Power supply
  • Power Semiconductor systems etc.

4.  Parts Of Liquid Cold Plates

The parts of a cold plate will vary to the complexity of individual designs. At the simplest level, a cold plate consists of the following parts:

  • Metal block/plates
  • Copper/aluminum/steel/vinyl tubes/hose
  • Plate spreaders
  • Tubing inlet and outlet
  • Cold plate fittings: Cold plate nipples, hex nuts, and compression gaskets
  • Cold plate shank assemblies: Shank washer, nipple shank assembly, faucets, sleeves
  • Cold plate rack

5.  How Liquid Cold Plates Work

This type of cooler transfers heats through contact cooling. A liquid coolant absorbs the heat and circulates it through the cold plate’s flow path and finally into a radiator downstream.

The flow path of a cold plate can adapt to assorted shapes and sizes.

For optimal heat dissipation efficiency, the shape of the flow path should yield maximum surface area in the flow path.

The efficiency of the liquid cold plate also depends on the type of fluid you select as a coolant, the flow rate of the fluid, and the type of material you choose for cold plate fabrication.

6.  Liquid Cold Plate Designs For High Efficiency

There are many designs of a liquid cold plate that you can select for your high-efficiency applications. Some of the most commonly used liquid cold plate designs include:

Tube-based Liquid Cold Plates

This is the simplest liquid cold plate design and comprises metal tubings inside a block of metal such as aluminum, copper, steel, etc.

You can design your tubed cold plates in varied shapes and sizes. You can also customize the tubings to yield maximum surface area for heat absorption.

To join the plate and the tubing together, press to fit using a mechanical machine. You can also use epoxy, though this can sometimes act as a heat insulator or solder them together.

Gun-Drilled Cold Plates

This type of cold plate is fabricated by drilling holes into metal plates, preferably aluminum, and creating flow paths.

You could further create cold plates with dual sides by inserting tubes into the holes.

Inlet and outlet holes should be perpendicular to the primary pathway of the fluid flow. You can then plug them partially to ensure that the flow path remains continuous.

You can easily achieve flatness with gun-drilled cold plates. The lack of thermal boundaries also ensures maximum heat adsorption into the coolant fluid.

Channeled Cold Plates

Channeled liquid cold plates are extruded channels, machined channels, or channels formed through other alternative channeling methods.

Machining and other alternative channeling methods are ideal for fabricating channels with complex shapes whereas extrusion only yields straight channels.

You can have channeled cold plates of any length, either in ladder configuration or as a base plate assembly.

You can further anodize or coat your channeled cold plates to further protect them from deteriorating environmental conditions.

Brazed Cold Plates

You should select a brazed liquid cold plate when your high-performance application demands leak-free and low thermal resistance conditions.

Brazed cold plates enable you to accurately specify the exact parameters.

Their design is highly flexible and easily adaptable for high-performance applications.

Structurally, you can manufacture brazed cold plates by bonding two metal plates to the fins metallurgically.

Their structure gives them superior turbulence flow and surface area for heat transfer.

There are different types of brazed cold plates. These include:

I. Dip brazed liquid cold plates

II. Controlled atmosphere brazed liquid cold plates

II. Vacuum brazed liquid cold plates

Die-cast Liquid Cold Plate

You can use a die-cast cold plate for demanding high-volume applications.  It involves constructing two pieces of the cold plate and then bonding them together either by using epoxy or through welding.

You can incorporate the assorted internal and external features in both halves to meet the complex requirements of your system.

7.  Choosing Liquid Cold Plate For Electronics

You have to make an informed decision when selecting a cold plate for your thermal management requirements.

When selecting a cold plate, you have to ensure that you settle for a device that concurs with your system parameters and meets your thermal management needs.

The wetted material used to construct the cold plate you choose must be compatible with the coolant fluid used for heat dissipation.

For instance, a liquid cold plate manufactured from copper is compatible with water as a coolant fluid.

In contrast, you should fabricate your liquid cold plate using aluminum if you intend to use oil or water that has been treated with ethylene glycol as your coolant.

This material is inappropriate for water-cooled liquid cooling systems.

The complexity of your cold plate design will depend on the thermal management requirements of your components, and the conductivity, temperature, and flow rate of your coolant.

Ensure that the cold plate of choice is compatible with your system flow rates because different designs and models of cold plates have limitations in coolant flow rates.

Exceeding the maximum limit causes erosion in the liquid channel.

You should also pay attention to the type of connection for the cold plate.

There are diverse connections that connect the cooling media and the cold plate.

These include screw-on fittings, open tube ends, threaded holes, etc.

The design of your liquid cold plate will significantly impact your thermal management costs. You should always settle for less complex designs if they offer sufficient thermal management solutions.

8.  What Is Thermoelectric Cold Plate?

A thermoelectric cold plate is a type of cold plate that you can use for either cooling or increasing the heat in a device or material.

Unlike the conventional cold plate that lower the temperature by pumping a cold liquid through the fluid pathway, the thermoelectric type uses electric current.

This type of cold plate is fabricated using unique types of semi-conductors, the N-type and P-type, which have different electron densities.

These two types of semiconductors are assembled parallel to each other and joined with a conductive plate.

Passing an electric current, direct current, through the plate results in a sharp temperature difference where the two semiconductors enjoin.

The electric current will transfer heat from one side of the plate to the opposite side.

The receiving side warms up and the other side cools down, potentially to chilling temperatures.

The hot side of the cold plate is attached to a heatsink.

Or a conventional liquid cold plate to lower its temperature otherwise you can use it to raise the temperature of your components.

9.  Types Of Liquid Cold Plates

At the most basic design, a liquid cold plate comprises only a metal block and internal tubing pathways for liquid coolants.

There are two main types of liquid cold plates.

Liquid Cold Plates With Internal Tubes

This type of liquid cold plate comprises either one or two metal plates with an embedded tubing.

Though copper is the most common material for tube fabrication, you can also have your tubing constructed from aluminum, steel, or any other suitable material.

Continuous tubings yield better thermal management compared to welded tubings because the joints can easily leak.

The efficiency of the tubed cold plate also considerably depends on the type of connection between the tubing and the plate.

Some adhesives such as epoxy are poor heat conductors and can significantly reduce heat dissipation efficiency in the cold plates.

Application of liquid cold plate

Application of liquid cold plate

Liquid Cold Plates With Internal Micro- or Mini-channels.

This type of liquid cold plate directs the fluids through an internal set of fins. The fins significantly increase the surface area for heat absorption.

Usually, the fins are stacked vertically. For uniform flow rate and maximum thermal performance, the gap between two adjacent fins and their vertical height must be optimized.

10.  Liquid Cold Plates Vs Standard Heat Sinks

A liquid cold plate and a standard heat sink are both vital devices when it comes to thermal management solutions.

Both of these devices cool heat through conductive form, that is, heat dissipation through contact.

However, there are several structural and functional differences between liquid cold plates and standard heat sinks.

Structurally, heatsinks are made of protruding fins that are absent in liquid cold plates.  Heat sinks also weigh less compared to cold plates but require more space for installation.

Functionally, heat sinks are faster heat exchangers due to their protruding fins.

However, the quantity of heat absorbed by a liquid cold plate is higher compared to the quantity absorbed by a standard heat sink.

11.  Choosing Liquid Cold Plate Material

Aluminum, copper, and steel are the three most widely used materials in the fabrication of cold plates.

Specifically, copper and aluminum are ideal materials of choice for manufacturing a liquid cold plate because they have exceptional heat conductive properties.

Generally, using aluminum for block fabrication yields an all-purpose liquid cold plate that you can use in almost any application.

Copper, on the other hand, produces cold plates with superior heat transfer properties because it is a better heat conductor than aluminum and steel.

It is good practice to use the same type of material in constructing your liquid cold plate.

This will help you avoid the risk of galvanic corrosion which is associated with the mixing of metals.

However, some metals are compatible. You can use copper cold plates/blocks along with brass fittings.

Similarly, you can use aluminum cold plates/blocks with nickel and stainless-steel fittings.

Further, you can anodize aluminum and coat copper for additional protection from environmental corrosion.

12.  Design Considerations For Liquid Cold Plate

Liquid cold plate

Liquid cold plate

There are standard liquid cold plates ordinarily designed to conventional industry parameters. You can also opt for customized liquid cold plates that are specially designed for your specific needs.

Customized cold plates are ideal for applications with extreme performance, interface or shape requirements. The process of designing a liquid cold plate is cumbersome and requires a detailed examination of your process thermal management needs.

You have to carefully consider the factors below for optimal thermal management solutions for your customized liquid cold plates.

Pressure Drops

Ensure that you design your liquid cold plate to deliver optimal pressure drop and turbulence for maximum heat transfer.

A too high-pressure drop will cost you more money for pumping more energy.

While a low-pressure drop is not ideal for generating sufficient turbulence for effective heat transfer.

Liquid Flow Path

The liquid flow path of your cold plate design should yield maximum surface area for heat dissipation.

You either settle for narrow and long tubings.

They have higher pressure drop and turbulence or chose short and thicker tubing with lower pressure drop, turbulence, and heat dissipation.

Material Compatibility

The wetted material used to construct your tubings must be compatible with the coolant fluid used to avoid potential corrosion.

Fluid Stability

You have to select a coolant based on your intentions for the liquid cold plate.

The freezing and boiling points of the fluid you select must be able to tolerate the operational conditions of your cooling system.

The liquid should be less toxic if the application handles food products and eliminate all bacterial growth in the system.

In some cases, it is highly desirable to select a liquid that can act as an electric insulator to avoid incidences of short-circuiting and shocks in cases of leakage.

Maximum Temperature

The cold plate design must be able to effectively reduce the temperature of the electronic component to optimal operational levels.

Efficient heat removal is mandatory in high-performance, high-heat applications to avoid incidences of overheating and breakdown or fire breakout.

Weight And Size

Your liquid cold plate design must concur with the space available for installation and component stability/sensitivity to avoid product damage.

Flow Balancing

The flow rate of a liquid cold plate is also a critical aspect in determining its effectiveness in transferring heat from an electronic component.

A high flow rate can cause erosion in the tubing while a low flow rate does not yield sufficient turbulence for efficient heat exchange.

13.  Flow Options For Liquid Cold Plates

You can consider diverse cold plate systems for your thermal management options. You can select either mini-channel, micro-channel, manifold tube, or serpentine tubes.

You have to consider the implications of your system requirements before settling for a given flow option.

Each type of the above-highlighted flow option has its pros and cons.

For instance, you will have to sacrifice fluid velocity for an increased surface area when you select microchannel flow. The vice versa is true for serpentine tubes.

More Resources:

Customs Heat Sink

Heat Exchanger

Copper Heat Sink

Aluminum Heat Sink

For all your liquid cold plates, contact us now.

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