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Patent Searching and Data


Title:
LIGHTING FIXTURE, ASSEMBLING METHOD OF LIGHTING FIXTURE, AND ELEVATOR CAR
Document Type and Number:
WIPO Patent Application WO/2021/229877
Kind Code:
A1
Abstract:
This lighting fixture (1) is provided with: a light-emitting substrate (2) which has light-emitting parts (20) for emitting light; a heatsink (3) which has a bottom section (3a) where the light-emitting substrate (2) is disposed, a cylindrical sidewall section (3b) for accommodating the light-emitting substrate (2), and heat dissipation fins (3c) formed on an outer peripheral surface of the sidewall section (3b), and which dissipates heat generated from the light-emitting parts (20); a reflective member (4) which is accommodated in the sidewall section (3b) and disposed so as to surround the light-emitting parts (20), and which reflects the light; and a case (6) which is at least partially accommodated in the sidewall section (3b). Given that a direction in which the light is emitted is defined as an emission direction, and the opposite direction to the emission direction as a counter-emission direction, the sidewall section (3b) is formed to extend toward the counter-emission direction with respect to the bottom section (3a), the light-emitting substrate (2) is disposed on the emission direction side of the bottom section (3a), the reflective member (4) is disposed on the emission direction side of the light-emitting substrate (2), the case (6) is disposed on the emission direction side of the reflective member (4), and fastening members (7) for fastening the bottom section (3a) and the case (6) together are disposed to penetrate through the reflective member (4) from the counter-emission direction side of the bottom section (3a).

Inventors:
YOKOBORI, Yuka (JP)
KONDO, Masayuki (JP)
Application Number:
PCT/JP2021/005222
Publication Date:
November 18, 2021
Filing Date:
February 12, 2021
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (JP)
International Classes:
F21V29/77; F21V29/503; F21V33/00; F21Y115/10
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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