HEAT DISSIPATING SHEET FOR LED LIGHTING BULB USING FLAKES TYPE FILLER AND METHOD OF MANUFACTURING THE SAME

• Main Authors: LEE, JAE GUN, LIM, JIN HO, HWANG, WOO SIK, KIM, KEUN HA, KIM, JAE KYONG, JUNG, YONG SIC, KIM, HYUNG TAE, YOUN, JIN SIK
• Format: Patent
• Language: English; Korean
• Published: 26.02.2013
• Subjects: BLASTING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MECHANICAL ENGINEERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PRINTED CIRCUITS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS

PURPOSE: A heat-radiating sheet is provided to quickly absorb heat generated from various heating sources of electric components, and to prevent performance or efficiency loss of the electric components. CONSTITUTION: A heat-radiating sheet(100) for an LED lighting comprises 11.5-20 parts by weight of binder, 1.5-15 parts by weight of dispersant, and 1.5-17 parts by weight of filler(120) in the binder, and has a whole thickness of 20-40 microns. The filler comprises a plurality of flake type conductive ceramics which are arranged in parallel. The binder is one or more resins selected from a polyolefin-based, polyacryl-based, polyurethane-based, or polyester-based resin. The conductive ceramics is graphene, graphite, carbon black, or a mixture thereof. [Reference numerals] (AA) Vertical pressure