Light source unit and lamp
AssigneeKoito Manufacturing Co., Ltd.
InventorTakayuki Yagi
Life of this patent
Estimating the term…
Abstract
A light source unit includes a heat-dissipation member having positive expansibility that volume is expanded with an increase in temperature, the heat-dissipation member having a through-hole, a heating component having a heating component body and a pin terminal, the heating component body fixed to the heat-dissipation member in one opening side of the through-hole, the pin terminal connected to the heating component body, and inserted through the through hole and protruding from the other opening side of the through-hole of the heat-dissipation member a substrate fixed to the heat-dissipation member in the other opening side of the through-hole and having a wiring connected to the pin terminal, and a buffering member having negative thermal-expansibility that volume is contracted with an increase in temperature.
Claims6
A light source unit comprising:
- a heat-dissipation member having positive expansibility that volume is expanded with an increase in temperature, the heat-dissipation member having a through-hole;
- a heating component having a heating component body and a pin terminal, the heating component body fixed to the heat-dissipation member in one opening side of the through-hole, the pin terminal connected to the heating component body, and inserted through the through hole and protruding from the other opening side of the through-hole of the heat-dissipation member;
- a substrate fixed to the heat-dissipation member in the other opening side of the through-hole and having a wiring connected to the pin terminal;
- and
- a buffering member having negative thermal-expansibility that volume is contracted with an increase in temperature,
- wherein the buffering member is structured to alleviate a force applied to the pin terminal in accordance with expansion of the heat-dissipation member.
Dependencies are inferred from the claim text.