System and method for projector lamp door thermal safety latch
AssigneeDell Products L.P.
InventorsSubramanian Jayaram, Samuel Nicklaus D'Alessio
Life of this patent
Estimating the term…
Abstract
An information handling system projector lamp door includes a thermal safety latch that secures the lamp cover panel if the temperature of the projector interior exceeds a safety limit associated with potential harm to an end user. A thermostatic spring expands at a predetermined temperature to interfere with movement of a latch so that the latch is locked to secure the cover panel in a closed position. Below the predetermined temperature, the thermostatic spring retracts to allow movement of the latch so that the cover panel is released to move to an open position. An override interfaces with the thermal safety latch to allow manual release of the cover panel by retracting the thermostatic spring.
Claims15
An information handling system comprising:
- plural processing components operable to generate visual information for presentation at a projector;
- a projector interfaced with the processing components and operable to present the visual information, the projector having a housing, a lamp disposed in the housing, and a cover panel disposed in housing proximate the lamp, the cover panel operable to selectively move to an open position that exposes the lamp and a closed position that covers the lamp;
- a thermal safety operable to secure the cover panel in the closed position if the lamp has a predetermined temperature;
- and
- a latch associated with the cover panel, the latch operable to move to a locked position that secures the cover in the closed position and an unlocked position that allows the cover to move to the open position, the thermal safety securing the cover panel in the closed position if the lamp has a predetermined temperature by securing the latch in the locked position.
A method for managing access to the interior of a projector, the method comprising:
- determining that a temperature associated with the projector interior exceeds a predetermined amount;
- and
- securing a cover panel having access to the projector by actuating a latch to a closed position, preventing movement of the panel to an open position, and securing the latch in the closed position if the temperature exceeds the predetermined amount.
A system for managing access to the interior of a projector, the system comprising:
- a latch operable to move selectively to secure and release a cover panel, the cover panel moving between a closed position that prevents access to the projector and an open position that allows access to the projector;
- and
- a thermal safety associated with the latch, the thermal safety keeping the latch secure if the interior has a predetermined temperature.
Dependencies are inferred from the claim text.