Title:
COOLING STRUCTURE FOR LIGHT SOURCE DEVICE, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2024/057409
Kind Code:
A1
Abstract:
This cooling structure for a light source device comprises: a light source unit (10); a heat dissipation plate section (21) having a mounting surface (21a) on which the light source unit is mounted; a plurality of heat dissipation fins (22) arranged with intervals therebetween in a first direction along a back surface (21b) of the heat dissipation plate section; and a blower fan (7) for blowing air through the plurality of heat dissipation fins toward the back surface. The plurality of heat dissipation fins are equipped with a cover part (23), which is provided at each first end section (221) of the plurality of heat dissipation fins in a second direction along the back surface, and which covers a region of the gap between adjacent heat dissipation fins in the first direction, said region corresponding to each distal end section of the plurality of heat dissipation fins extending from the back surface toward the blower fan. The plurality of first end sections do not protrude outside of a first edge section (211) of the heat dissipation plate section in the second direction. An opening (224) where the gaps between adjacent heat dissipation fins face toward the outside of the plurality of heat dissipation fins is formed at a position of the plurality of first end sections that corresponds to each proximal end section of the plurality of heat dissipation fins.
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Inventors:
TANI YUSUKE (JP)
Application Number:
PCT/JP2022/034246
Publication Date:
March 21, 2024
Filing Date:
September 13, 2022
Export Citation:
Assignee:
SHARP NEC DISPLAY SOLUTIONS LTD (JP)
International Classes:
G03B21/16; G03B21/00; G03B21/14
Domestic Patent References:
| WO2019035282A1 | 2019-02-21 |
Foreign References:
| JP2015026757A | 2015-02-05 | |||
| JP2021097135A | 2021-06-24 | |||
| JP2017172876A | 2017-09-28 | |||
| JP2014164152A | 2014-09-08 | |||
| JP2020102558A | 2020-07-02 | |||
| JP2021018279A | 2021-02-15 | |||
| JP2021060603A | 2021-04-15 |
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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