Patent ID: 9155233
Filing Date: 2015-10-06
Classification: H05K

Abstract:
1. An electromagnetic shield lid for fitting onto a base structure, the base structure comprising at least a first shield sidewall and a second shield sidewall opposite the first shield sidewall, the shield lid comprising: a. a top portion dimensioned to occupy an area between a top of the first shield sidewall and a top of the second shield sidewall; b. a first lip portion extending downward from the top portion for placement adjacent to an exterior face of the first shield sidewall; and c. a deformation inhibiting feature extending downward from the top portion for placement proximate to an interior portion of the second shield sidewall; wherein, before the interior portion of the second shield sidewall directly contacts the deformation inhibiting feature by way of an edge of an inwardly folded portion of the second shield sidewall, the deformation inhibiting feature is initially separated from the inwardly folded portion of the interior portion of the second shield sidewall by a gap and the edge of the inwardly folded portion devoid contact with the deformation inhibiting feature when the shield lid has been fitted onto the base structure, wherein, in response to an external force oriented perpendicular to the first shield sidewall which tends to cause the first shield sidewall to exert pressure on the first lip portion, initial deformation of one or both of the first shield sidewall and the first lip portion result in closure of the gap, the deformation inhibiting feature configured, upon contact with the edge of the folded over portion of the interior portion of the second shield sidewall due to said closure of the gap, to support the shield lid against the second shield sidewall to relieve said exerted pressure.