111results about "Ventilation panels with screening provisions" patented technology

A homogeneous EMI shielded vent panel is provided. The vent panel has an interior porous section and an exterior frame for attachment to an opening of an electronic enclosure. The vent panel can be fabricated using selective laser sintering technology to avoid the use of multiple parts and components which can generate harmful foreign object debris during fabrication and mounting of the vent panel.

An improved shielding cage assembly that utilizes air guides is disclosed. The shielding cage has a hollow interior configured to receive an electronic module therein which generates heat during operation. An air guide member is provided that defines an entry for surrounding air to enter the shielding cage interior and circulate around the electronic module. A thermal transfer member is provided that defines at least one exit passage for the air in the interior of the shielding cage to exit.

Methods and apparatus for shielding an object from relative high electromagnetic radio frequencies while allowing airflow to pass to and from the object are disclosed. According to one aspect of the present invention, a shield arrangement that shields a chassis includes at least a first plane and a second plane. The first plane has a thickness and defines a first plurality of openings that include a first opening and a second opening that are separated by at least a distance that is a function of the thickness. The second plane defines at least a third opening, and is approximately parallel to the first plane. The second plane is spaced apart from the first plane by a spacing that is a function of at least the thickness.

An electronic device module includes an electronic device, a rack accommodating the electronic device, and a shield adjusting assembly. The rack defines a number of ventilation holes, and the shield adjusting assembly defines a number of through holes. The electronic device is placed in the rack to drive the shield adjusting assembly to a first position in which the through holes align with the ventilation holes. When the electronic device is detached from the rack, the shield adjusting assembly is restored by a resilient element to a second position in which the through holes offset the ventilation holes such that the ventilation holes are shielded.

An electromagnetic interference (EMI) shield that increases the airflow through the EMI shield while preventing line-of-sight openings through the EMI shield. Two plates are coupled together. Each of the respective plates has a raised component with an aperture therethrough to provide a path through the plate. The raised component is preferably scoop-shaped with the aperture at one end and an opposite end tapering into the respective plate. At least a portion of one of the raised components overlaps at least a portion of the other of the raised components when the plates are coupled together to form a path through the plates, while the plates are coupled together. Line-of-sight openings through the plates, to an electronic device protected by the EMI shield, are at least partially prevented by the raised components.

Disclosed are methods and apparatus for improving the resiliency and airflow through a honeycomb air vent filter while providing EMI shielding. In one embodiment, the honeycomb can be manufactured from a dielectric (e.g., plastic) substrate to provide improved resistance to deformation as compared to conventional aluminum honeycomb. The dielectric honeycomb substrate is metallized to provide EMI shielding capability. The metallized honeycomb substrate is cut slightly oversize to fit an opening in an electronic enclosure, which results in elastic deformation of resilient perimeter spring fingers that are used to hold the metallized dielectric honeycomb in place and provide electrical conductivity between the metallized dielectric substrate and the enclosure, thereby eliminating the use of a frame. In another embodiment, additional conductive layers can be added to the metallized dielectric honeycomb. In yet another embodiment, the metallized dielectric honeycomb substrate can be utilized in a framed configuration to provide improved durability.