Title:
LED BULB
Document Type and Number:
Japanese Patent JP2019053888
Kind Code:
A
Abstract:
To provide an LED bulb which can be used as an ordinary LED bulb enabling obtaining a normal light volume during normal AC power supply, can light with a large light volume for a long time by a lithium ion battery charged during normal power supply when an AC power is blocked, and can be used as a portable lighting.SOLUTION: A plurality of through holes for communicating the inside and the outside of a substrate part are provided on the upper part of the substrate part of an LED bulb, and heat generated by LED light-emitting elements is emitted to not only the outer peripheral surface of the substrate part and an external surface of a globe but also the atmosphere via the through holes. With this, even when a light volume is increased by increasing the number of the LED light-emitting elements of the LED bulb, or when using a lithium ion battery as a battery incorporated in the LED bulb, heat degradation of the lithium ion battery can be suppressed low.SELECTED DRAWING: Figure 1
Inventors:
MIZUNO NOBORU
KANAOTO KENICHI
KANAOTO KENICHI
Application Number:
JP2017176942A
Publication Date:
April 04, 2019
Filing Date:
September 14, 2017
Export Citation:
Assignee:
GREEN WELL CO LTD
International Classes:
F21K9/238; F21K9/00; F21K9/232; F21K9/237; F21L2/00; F21L4/00; F21S9/02; F21V23/04; F21V29/503; F21V29/77; F21V29/83; H01L33/00; H01L33/64
Attorney, Agent or Firm:
Hitoshi Kobayashi
Tsukasa Hayashi
Tsukasa Hayashi