Title:
照明装置
Document Type and Number:
Japanese Patent JP7203931
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lighting device which achieves sufficient heat radiation performance and vibration resistance despite having a light-weight and simple structure.SOLUTION: A lighting device includes: a light source part 100; a connection part 300 connected with a power source; a fixing part 500 which fixes the light source part 100 to the connection part 300; and a heat radiation part 200 disposed between the light source part 100 and the connection part 300. The heat radiation part 200 includes: a heat receiving body 260 to which the light source part 100 is fixed; and multiple heat radiation pieces 270 fixed to the heat receiving body 260. The fixing part 500 includes multiple arms 580 fixed to the heat receiving body 260 and the connection part 300. The multiple heat radiation pieces 270 are multiple plates disposed extending radially from a center axis, and the multiple arms 580 are multiple plates which are disposed extending radially from the center axis.SELECTED DRAWING: Figure 2
Inventors:
Norifumi Sato
Takuro Sawada
Fujie Masaaki
Takuro Sawada
Fujie Masaaki
Application Number:
JP2021189485A
Publication Date:
January 13, 2023
Filing Date:
November 22, 2021
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Mitsubishi Electric Lighting Co., Ltd.
Mitsubishi Electric Lighting Co., Ltd.
International Classes:
F21K9/235; F21K9/00; F21K9/233; F21K9/237; F21V25/02
Domestic Patent References:
| JP2014154513A | ||||
| JP2014116148A | ||||
| JP2014146568A | ||||
| JP2002078273A | ||||
| JP4116538U |
Foreign References:
| KR1020150075462A |
Attorney, Agent or Firm:
Patent Attorney Corporation Cross Border Patent Office