Xicato approved seven more LED coolers designed by Mingfa Tech

Mingfa Tech, the leading LED heat sink provider today announced to enter a new stage of strategic cooperation with Xicato who certified seven more Mingfa Tech’s LED coolers in 7th July 2015, which covered star led heat sinks, pin fin led heatsinks compatible with XSM, XLM, XIM and XTM Xicato led modules. In the past six months of 2015, over twenty-one items of LED cooler series from EtraLED coolers, GooLED coolers and SimpoLED coolers were approved by Xicato.

"Xicato is a recognized leader in creating LED modules that provide superior aesthetics, economics and durability, we are pleased to be the earliest LED thermal solution partner certified by Xicato to accelerate the global adoption of intelligent lighting systems", said Lisa Lee, marketing manager from Mingfa Tech, " It has been more than five years for the partnership with Xicato. We look forward to continuing this great relationship with Xicato and developing more ranges of LED cooler for its new LED modules. "   

Xicato has given XSA numbers for the certified LED coolers compatible with Mingfa Tech item numbers and simple specs are listed as follows.

Mingfa Tech Part #  => Xicato Part # 

EtraLED-XIT-4850  => XSA-380 

Xicato Thermal Class E , ( 60° tilt angle, 40°C ambient ) .

The cooler design with mounting holes foreseen for direct mounting of Xicato XSM、XIM and XTM Modules .

Diameter 48mm - Standard height 50mm , Other heights on request.

EtraLED-XIT-4880  => XSA-381 

Thermal resistance range Rth 3.6°C/W. 

Xicato Thermal Class F , ( 60° tilt angle, 40°C ambient ) .

The cooler design with mounting holes foreseen for direct mounting of Xicato XSM、XIM and XTM Modules .

Diameter 48mm - Standard height 80mm , Other heights on request.

EtraLED-XIT-8550  => XSA-382 

Designs for XSM Module from 1100 to 3800 lumen.

Thermal resistance range Rth 1.5°C/W. ( Thermal class N )

Modular design with mounting holes foreseen for direct mounting of Xicato XSM、XTM and XIM Modules .

Diameter 85mm - standard height 50mm, Other heights on request.

EtraLED-XIT-8580  => XSA-383 

Designs for XSM Module from 1300 to 4200 lumen.

Thermal resistance range Rth 1.3°C/W. ( Thermal class N )

Modular design with mounting holes foreseen for direct mounting of Xicato XSM、XTM and XIM Modules .

Diameter 85mm - standard height 80mm, Other heights on request.

EtraLED-XIT-11050  => XSA-384 

Designs for XSM Module from 1600 to 5300 lumen.

Thermal resistance range Rth 1.1°C/W. ( Thermal class Q )

Modular design with mounting holes foreseen for direct mounting of Xicato XSM、XTM and XIM Modules .

Diameter 110mm - standard height 50mm, Other heights on request.

EtraLED-XIT-11080  => XSA-385 

Designs for XSM Module from 2000 to 6400 lumen.

Thermal resistance range Rth 0.9°C/W. ( Thermal class Q )

Diameter 110mm - standard height 80mm, Other heights on request.

Modular design with mounting holes foreseen for direct mounting of Xicato XSM、XTM and XIM Modules .

EtraLED-XIT-13040  => XSA-386

Thermal resistance range Rth 0.9°C/W. For downlight designs from 1800 to 4500 lumen.

Xicato Thermal Class Q , ( 60° tilt angle, 40°C ambient ) .

The cooler design with mounting holes foreseen for direct mounting of Xicato XSM、XIM and XTM Modules .

Diameter 130mm - Standard height 40mm , Other heights on request.

Full details of the new Xicato LED coolers can be found onwww.heatsinkled.com or follow Minga Tech on Facebook and Linkedin

About Mingfa Tech

Mingfa Tech was founded as a creative designer & manufacturer of high end LED heat sinks. With its headquarter in Dongguan City of China, Mingfa is a certified LED heatsink supplier of many branded LED modules. MingfaTech’s design and supply on star heat sinks and pin fin heat sinks, especially the breaking-through LED cooler series of EtraLED, SimpoLED, GooLED and HibayLED have been helping the clients improve their designs with the heat dissipation in better efficiency and more aesthetic appearances, substantially making LED in a real sense as well.

To learn more about the partnership between Xicato and Mingfa Tech, please contact

Mingfa Tech Manufacturing Limited

Office: +86-769-33252828

Fax: +86-(020)28819702 ext:22122 (overseas)

Http://www.heatsinkled.com

Email: sales@mingfatech.com

Why Using Pin Fin Heat Sink For LED Lighting Today

When it comes to electronic systems, heat sinks act as heat exchangers that help to cool a device by transferring heat on to the medium surrounding it. Heat sinks are also used in computers to cool the CPU, also known as the Central processing unit. This technology is used is LEDs, also known as Light emitting diodes too. Normally, heat sinks are used for any device with an insufficient capability of dissipating heat.

Heat sinks are created to maximize the device’s surface area and increase the contact of the cooling medium that surrounds it. It is used in many devices nowadays and works excellently with LEDs compared to other techniques. Among the different types of heat sinks, Pin Fin heat sinks are gaining a lot of popularity among people.

A Pin Fin heat sink is a normal heat sink, but it differs from other heat sinks as it consists of pins that are extended from its base. These pins are in various shapes including elliptical, cylindrical and square shapes. It is the most common heat sink available in the market nowadays. Generally, a heat sink should work better when it has a large surface area, but this is not true in all the cases. The pin fin heat sink works on the concept of packing as much surface area as possible into any particular volume.

One can also find straight fin heat sinks, but Pin Fin heat sinks work better than them as the fluid flows along the pins axially instead of flowing tangentially. The main advantage with Pin fin heat sinks is that they perform in a better manner when they are placed in a tilted position. Compared to other heat sinks, they show a better performance. They are perfect for spot lights that are adjustable and they can also be used for shop lighting and down lighting.

Apart from all this, Pin fin heat sinks are considered as innovation with respect to heat sinks. These are compact sinks that are fabricated with a huge number of pins that are created to provide a lot of air. In addition, these heat sinks are designed and structured geometrically to make them highly effective. They excel when they dissipate the heat from electronic devices with a forced convection. The materials used in any technique makes a huge difference and since these Pin fin sinks are manufactured with the best quality of Aluminum, the process is carried out effectively.

Aluminum possesses a high level of thermal conductivity and it ensures a uniform and rapid distribution of heat at the pin’s base. Pin fin heat sinks made using aluminum perform better than other heat sinks though aluminum is actually light weight. It exhibits better and uniform heat dissipation than other heat sinks, although they are manufactured in the same size. There are numerous experiments conducted to test the ability of pin fin heat sinks and they have been proven to dissipate even heat when compared to other heat sinks. LED PinFin Heat Sinks can work on any electronic device, but they are excellent when they are used with LEDs.

When selecting a heat sink, it is necessary to classify the air flow as natural, low flow mixed, or high flow forced convection. Natural convection occurs when there is no externally induced flow and heat transfer relies solely on the free buoyant flow of air surrounding the heat sink. Forced convection occurs when the flow of air is induced by mechanical means, usually a fan or blower. There is no clear distinction on the flow velocity that separates the mixed and forced flow regimes. For spot lighting or track lighting, once the tilting angle designs over 50, the pin fin heat sinks keeps on good heat dissipation than others. As there is no forced air movement, the free air convection cooling is the main component of cooling in this way. Then pin fin LED Cooler got widely used in LED lighting.

Resource Box

If you are interested to learn more LED Pin Fin Heat Sinks, there is a lot of material available online. Currently, an existing series of GooLED coolers on the shelf can be found in the market.

Summary

This article discusses pin fin heat sinks and their advantages compared to other heat sinks. 

5 Tips for LED heat sink Calculation - You must know!

By the help of following 5 points, you can calculate your LED heat sink.

·         Define Temperature.

·         Define LED parameters.

·         LED heat sink Calculation.

·         Design Verification.

·         Essential Remarks.

Now, we will discuss them one by one.

Define your expected Temperature:

First of all, define your ambient temperature. Here are the few examples of it.

·         Spot Light Temperature = 30 Degree.

·         Ceiling Down lighter = 50-55 Degree.

·         Automotive lighting around = 45 Degree (Only from design prospective)

·         TLife around = -40 up to + 85 Degree.

Define LED Parameters:

Here are some of the specs of LED parameters.

·         Take a LED cob module Citizen citilied CLL020 series.

·         Model # : CLL020-1203A1-303M1A2

·         Forward current should be around 360 mA.

·         Forward Voltage should be around 40.9 Vdc.

·         Power is approximately 14.7 W.

·         Luminous flux is around 1210 lm.

·         Maximum Case Temperature would be around Tc 100 Degree.

·         Maximum Junction Temperature would be around Tj 150 Degree.

·         Thermal Resistance should be Rj-c 2.6 Degree/W.

 LED heat sink for Citizen CLL020-022/CLL030-032  

LED Heat Sink Calculation:

Here, we have to follow some specific formulas. We need to take care of the following items:

·         Individual Thermal resistance of each part.

·         The formula used can be = T = Pd * Rth

·         Here, we can calculate thermal resistance by using formula (Rj-c).

·         In case of recessed environment, Temperature should be 45 Degree.

·         The total power to dissipate should be less than total power of LED consumes.

·         More light the power would be, more efficient your LED module would be.

·         Maximum Temperature can be calculated as Tj- Ta = 135-45 = 90 Degree.

·         Pd= 14.7 W*80 % =11.76 W.

·         Heat sink with Rth value should be less than 4.65 Degree.

Design Verification:

Once you are done with the applying thermal pad and the heat sink, you have to verify the design. We have to keep some safety precautions prior design. Maximum Temperature limit should not be more than 100 degree centigrade. But for safety precaution we have to measure the temperature around 87-92 degree centigrade.

Essential Remarks:

As far as the Rth value is concerned, some manufacturers give a single thermal resistance for the heat sink. But you should be well aware of Rth of the same heat sink.

Resource Box

For more info of LED Heat Sinks, pls check: http://www.heatsinkled.com

Akon Chan - Mingfa Tech Ltd

sales@heatsinkled.com

GooLED heat sinks were certified by Xicato

Mingfa Tech has launched GooLED coolers and got certified by Xicato in March, 2015. Here are the item numbers from the systems between Xicato and MingfaTech for these pin fin LED coolers:

Mingfa TechS’ TYPE Number	XICATOS’ Series Number
GoolLED-4830, Ø48*H30mm	XSA-316
GoolLED-4850, Ø48*H50mm	XSA-317
GoolLED-4868, Ø48*H68mm	XSA-318
GoolLED-5830, Ø58*H30mm	XSA-319
GoolLED-5850, Ø58*H50mm	XSA-320
GoolLED-6830, Ø68*H30mm	XSA-321
GoolLED-6850, Ø68*H50mm	XSA-322
GoolLED-7830, Ø78*H30mm	XSA-325
GoolLED-7850, Ø78*H50mm	XSA-326
GoolLED-11050, Ø110*H50mm	XSA-327
GoolLED-11080, Ø110*H80mm	XSA-328

The original design ideal of GooLED coolers comes from Pin Fin heat sinks.        

GooLED coolers are considered to be among the most powerful heat sink designs available today.

GooLED heat sinks have the following advantages:

1.    Light-weight, lighter than the same size of traditional LED coolers.

2.    High efficiency of heat dissipation comparing to the same size of star heat sinks.

3.    Flexible installation options, suitable for lots of branded COB modules.

Mingfa Tech takes GooLED-XIT-7850 Pin Fin Heat Sink for example:

The thermal data table

Model NO.	GooLED-XIT-7850
Size	Φ78xH50mm
Material	1070
Finish	Black Anodized
Weight(g)	197
Thermal Wattage	24W
HeatsinkΘs-a²	75332
Thermal Resistance (°C/W)²	2.1

Heat sink to ambient temperature rise Ths-amb(°C)

Dissipated Power Pd(W)

Detailed analysis of GooLED

Through the above analysis of the data, Pin fin heat sinks provide very low thermal resistance values per given space and low pressure drop. The cooling capabilities of pin fins stem from the round geometry of the pins, the omnidirectional pin configuration, and the use of highly conductive materials. The smooth round pins reduce resistance to incoming air streams and enhance air turbulence between the pins. The omnidirectional structure maximizes the entrance of fresh air into the pin array and at the same time allows the hot air to exhaust from the pin array in every possible direction. The use of highly conductive materials further reduces the thermal resistance of the heat sinks. Cool Innovations has further enhanced the performance of pin fin heat sinks via the introduction of the splayed and flared pin fin designs. Their unique structure allows them to offer lower thermal resistance values and lower pressure drop per given space.

Full details of the GooLED coolers can be found on www.heatsinkled.com

 

About Mingfa Tech

MingfaTech Manufacturing Limited, a LED thermal solution leading provider, headquartered in Dongguan City of China, who is a certified LED heatsink supplier of many branded LED modules. MingfaTech’s design and supply on star heat sinks and pin fin heat sinks, especially the breaking-through LED cooling series of EtraLED, SimpoLED, GooLED have been helping the clients improve their designs with the heat dissipation in better efficiency and more aesthetic appearances, substantially making LED in a real sense as well.

 

Contact us

Mingfa Tech Manufacturing Limited
Tel :  +86-769-33252828
         +86-769-33251919
Fax : +86-(020)28819702    ext:22122 (overseas)
          400-6981-163    ext:22122 (China)
Head Office: Suite 901, Block A, Luo Sha Da Sha, Dong Xing Road, Guan Cheng District, Dong Guan City, Guang Dong Province, 523000 China
E-mail:  sales@mingfatech.com
website:  http://www.heatsinkled.com

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