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Aevum Control Lighting and Equipment - IIoT
Explosion Proof Lights
Explosion Proof Motors - Motors for Hazardous Locations
Industrial and Vaporproof Emergency Failsafe Lighting
Industrial Cord Reels and Tool Taps
Industrial Work Area Heaters
Machine Vision Lights
Megatowerâ„¢
QC Series Industrial Portable Lighting - Quick Change Mount
Rig Lights
Stadium lights
String Lights and Temporary Light Stringers
Tank Cleaning Lights
Three Phase Motor Soft Starters
Vapor Proof LED Lights
Variable Frequency Drives (VFDs)
Vehicle Mounting Plates
Workboat Light Fixtures & Lighting Equipment
Color Changing LED RGB Lighting
Explosion Proof Cord Reels
GOLIGHT Spotlights
Larson FUTURE - Lease Lighting
Remote Area Lighting and Scene Lights
Utility Bucket Mount, Receiver Hitch & Trailer Mount Lighting
Butane and Solvent Extraction Room Lighting and Equipment
DC to DC Transformers and Power Supplies
Explosion Proof Fans & Blowers
Explosion Proof Paint Spray Booth Approved Lights
Explosion Proof String Lights
Explosion Proof Switchgear & Controls
Fleet Service Lights and Lighting Equipment
Industrial Equipment Trailers
Industrial Handlamps & Droplights
ISO 14644/FS-209E Clean Room Lighting
LED Blasting Lights
Night Time Fishing Lights
Portable AC Power Supply Units
Portable Power Distribution Panels
Power Distribution Panels with KVA Transformers
Self-Contained Lighting
Service Pit Lighting
Solar Generators & Solar Powered Lighting
Agricultural Farm Equipment Lighting & Beacons
Explosion Proof Cameras & Surveillance Systems
Explosion Proof Emergency Lights
Explosion Proof Heaters
Garage & Gas Station Canopy Lights
LED Grow Lights
LED Lights
NDT Ultraviolet Lights
Portable Hazardous Location Lighting
Radio Communication Towers and Equipment
Salt Water Processing Equipment
Shelter & Tent Lighting
Thermal Monitoring Cameras and Systems
48V LED Equipment Lights
ATEX Rated Explosion Proof Lights
Automotive Lighting
Class Rated Signals, Alarms, and Systems
Hazardous Location Area Lights and Portable Lighting
HID Equipment Lights
Hot Work Permit Lighting and Equipment
Hunting Lights
Industrial lasers
Industrial Transformers
Light Towers
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Remote Security and Surveillance Systems
Temporary Construction Lights
Vehicle Mounted Spotlights
Equipment & Heavy Machinery LED Light Package Fitouts
Phase Converters - Single to Three Phase
Marine Shore Power Cords and Equipment
24 Volt Military Lights
Disaster Relief / First Responders / Search & Rescue Lighting
Plastic Handcuff Key
110/120 Volt Flood Lights
Post Mount Spotlights
Magnetic Work Lights
Crank-up Light Masts
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Intrinsically Safe Lights
Military Flashlights
LED Waterproof Lanterns
Work Area Lights
12 Volt Flood Lights
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Boat Spotlights
New Boat Lights
HID Boat Lights
Boat Dock Lights
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Remote Control Lights
Control Lights
Tow Lights
Magnetic Control Lights
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NEW Lights and New Products
Evaporative Coolers
Police Equipment
AC/DC Transformers
Power Supplies
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Military Spotlights 24V
Infrared Filters, Covert Covers, and Blackout IR Lenses
Military Equipment
Ultralife Batteries
Remote Control Pan Tilt Base
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Larson Electronics Spotlights
Larson Electronics Parts
Replacement Lamps
Cords - Brackets
Portable Wheeled Generators
Non-Hazardous Location Extension Cords / Plugs / Outlets
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HID Work Lights
HID Dive Lights
HID Off Road Lights
Acro Lights HID Lights
Halogen Lights
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Acro Light Flashlight
Xenon HID Flashlights
Powerlight Flashlight
HID Flashlights
Xenon Flashlights
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LED Status Lights
Forklift Lights
Tractor Lights
HID Post Mount Lights
Roof Mount Lights
Post Mount Light parts
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Flashlight Holder
Magnet Spotlight Base
Tripods-Magnetic Base
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Recharging Spotlights
Fire Rescue Lights
LED Street Lights
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Headlights - Headlamps - Hard Hat Lights
Flashlights
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Suction Mount Lights
Magnetic Spotlights
12/24 Volt Spotlights
Gifts For Men
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New 12 / 24 Volt Lights
Explosion Proof Accessories and Replacement Parts
Explosion Proof Lighting
Explosion Proof Hand Lamps (Drop Lights)
Explosion Proof Lights - Stand/Dolly
Explosion Proof Tank Lights
Explosion Proof Phones and Intercoms
Explosion Proof Extension Cords
Black Friday & Cyber Monday Specials
Crane Lights
Explosion Proof Light Rentals
General Light Rentals
Light Tower and Light Plant Rentals
Power Distribution Rentals
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Power Plant Lighting
Refinery lights
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Food Grade Safe Lights
Film and Entertainment Lights
Handheld Meters and Devices
Waste Water Treatment Lights
Mining Lights
Ship Yard Lights
Work Site Lighting
         

   
03/10/17 Thermal Conductive Plastics for LED Applications

Article - March 10, 2016 By LarsonElectronics.com

150 Watt LED Pedestal/Magnetic Mount Work Area Light - Inline Transformer - 14,790 Lumens - 50 Foot

Thermal Conductive Plastics for LED Applications

Light emitting diodes (LEDs) are extremely efficient in mitigating heat during operation. However, with manufacturers pushing the limits of LEDs, traditional methods for heat dissipation may not be enough to keep the fixtures going, especially for businesses with complex lighting requirements.


Advantages in Heat Dissipation

Thermal management has always been the focus of many leading LED manufacturers. Heat generated from the lights must be dissipated properly in order to ensure the fixtures are working to their full potential. Traditionally, aluminum heat sinks were used to move heat away from the unit. But now, more and more designers are opting to use thermally conductive plastics due to their robust features. Units that are unable to effectively move heat away from the fixture suffer from color shifts, decays in brightness and failure. In LED applications, thermal conductive plastics may be applied on the lamp holder and heat sink. It is not ideal for packaging material, due to high reflectivity and retention of reflectivity requirements. When used as a plastic heat sink, it offers excellent heat dissipation.

On the other hand, UL listed units for wet locations refer to a location where water or liquids may drip, splash or flow on the electrical parts of a fixture. Exterior walls, garden landscapes, open-air decks and roofs are examples of wet locations in outdoor settings. Damp and wet UL ratings are the most common types of protection that individuals look for when selecting RGB outdoor lights. When it comes to the type of lighting technology, LEDs perform exceptionally well in outdoor locations (due to their solid state design), compared to traditional options, such as incandescent and fluorescent lamps.


LED Applications

An example of a sector that is pushing the boundaries of thermal conductive plastics in LEDs is the automobile industry. In a case study by PolyOne Therma-Tech, researchers created a solution for a car manufacturing business that wanted to avoid the use of aluminum in lights, due to added weight, high production costs and negative impacts on fuel consumption. Scientists pursued the application of thermal conductive plastic to decrease heat build-up and prevent light degradation. Switching to the new material allowed the company to rely on its current injection-mold machines, avoiding the need to purchase $11,500 of new equipment. Furthermore, the business is currently saving $14,400 per year just by replacing the aluminum parts.

Outside of the automobile space, the flexible material can be applied in the following sectors: electronics (chipsets and IC assembly), industrial (coils, pumps and transformers), heating/cooling (HVAC and radiant heating), and medical (devices and instrument casings). For businesses that are concerned about pollution and energy consumption, thermal conductive plastics provide a reclaim rate of up to 30 percent, and may help lower material wastage through molding.


Benefits in LED Manufacturing

The use of thermally conductive polycarbonate is beneficial for LED manufacturers. Such materials can reduce assembly steps during production. It also has the potential to reduce cost per unit in compact applications. After demolding, after-treatment is not required, compared to aluminum-based pieces. This greatly decreases the time spent on the production line, and wastage is minimized when shaping the piece for specific light models.

Traditional plastics are known for their insulating properties and prevent heat from actively escaping the fixture. Because of this, specially manufactured conductive plastics with robust fillers had to be created to meet the needs of high intensity LEDs, allowing the units to distribute heat evenly and away from the heat source.

To promote electrical conduction properties, manufacturers may add graphite or carbon fibers, or a combination of plastic and metal (hybrids). When boosting electrically insulating features of thermally conductive plastics, manufacturers may introduce ceramic or mineral fillers to the polymer solution. The modified material has the potential to reach up to 10 W/mK of thermal conductivity.





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