Electromagnetic interference (EMI) shield for electrical components, an internal EMI barrier, and a storage enclosure for electrical/electronic components

An electromagnetic interference (EMI) shield for electrical components, comprising:

• an enclosure;
• a barrier wall supported internally of the enclosure so as to subdivide the enclosure into a component enclosure and a fan module enclosure;
• apertures provided in the enclosure and the barrier wall to allow cooling air to be drawn in from outside of the enclosure through the component enclosure and out through the fan module enclosure;
• wherein a first set of the apertures in the component enclosure and the barrier wall are sized smaller than a second set of the apertures in the fan module enclosure.

A method for shielding electrical components contained within an EMI cabinet, comprising:

• providing an EMI cabinet having relatively small sized apertures configured to pass cooling air into the EMI cabinet and relatively large sized apertures configured to pass cooling air from the EMI cabinet;
• providing a barrier wall within the EMI cabinet having relatively small sized apertures, the barrier wall configured to subdivide the EMI cabinet into a component enclosure and a fan module enclosure;
• and
• providing an electrical component within the component enclosure and a fan module within the fan module enclosure;
• wherein the relatively small sized apertures in the component enclosure of the EMI cabinet and the barrier wall are sized to contain relatively high-frequency noise emanating from the electrical component, and the relatively large sized apertures in the fan module enclosure of the EMI cabinet are sized to contain relatively lower-frequency noise emanating from the fan module while also providing sufficient air flow for evacuating cooling air from the EMI cabinet.