US 12,345,386 B1
Force air moisture management for lamps
Sunil Dalal, Canton, MI (US); and John D. Harkleroad, Ypsilanti, MI (US)
Assigned to TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US); and TOYOTA JIDOSHA KABUSHIKI KAISHA, (JP)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Sep. 4, 2024, as Appl. No. 18/824,422.
Int. Cl. F21S 45/33 (2018.01)
CPC F21S 45/33 (2018.01) 19 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a lamp housing including an inlet vent and an exit vent, and with the lamp housing in an installed position on a vehicle, the inlet vent is configured to be located at a lower third of the lamp housing and the exit vent is configured to be located at a top, rear third of the lamp housing;
a transparent cover plate covering a light exit hole in the lamp housing; and
a conduit including a primary air inlet, an air outlet, a narrowed portion disposed between the primary air inlet and the air outlet, and a secondary air inlet disposed at the narrowed portion, and the primary air inlet is configured to receive a first flow of air through the conduit to induce a second flow of air through the lamp housing to evacuate a moist air from the lamp housing.