Title:
照明装置
Document Type and Number:
Japanese Patent JP7135615
Kind Code:
B2
Abstract:
To provide a luminaire which is advantageous when achieving both suppressing a temperature rise of a light source and suppressing an increase in dimension of the entire luminaire in the case where a plurality of lighting units are connected.SOLUTION: A luminaire 1B includes a plurality of lighting units 2 which are connectable. The lighting unit 2 includes: a unit body 3; a light source substrate supported by the unit body 3; and heat radiation fins 5 supported by the unit body 3, and for dissipating the heat generated in the light source substrate. The unit body 3 includes joint parts 6a, 7a facing the other lighting unit 2, when the lighting unit 2 is connected to the other lighting unit 2. The joint parts 6a, 7a have ventilation parts 6b, 7b formed by a cutout or an opening. When the plurality of lighting units 2 are connected, air can move between the outside space of the unit body 3 and the heat radiation fins 5 through the ventilation parts 6b, 7b.SELECTED DRAWING: Figure 5
Inventors:
Daisuke Matsubara
Application Number:
JP2018167237A
Publication Date:
September 13, 2022
Filing Date:
September 06, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
Mitsubishi Electric Lighting Co., Ltd.
Mitsubishi Electric Lighting Co., Ltd.
International Classes:
F21S8/04; F21V29/503; F21V29/77; F21V29/83
Domestic Patent References:
| JP2017212141A | ||||
| JP2010218852A | ||||
| JP2016100318A |
Attorney, Agent or Firm:
Takada Mamoru
Hideki Takahashi
Yasuo Koizumi
Hideki Takahashi
Yasuo Koizumi