# US 2014/0153192 A1 · Module cage with integrated emi aspect > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153192 A1 - Document ID: US20140153192A1 - Status: Published application - Kind: A1 - Application number: 14/089,979 - Filed: 2013-11-26 - Published: 2014-06-05 - Earliest claimed: 2012-12-05 - Assignees: Molex Incorporated - Applicants: Molex Incorporated - Inventors: Jay H. Neer; Harold Keith LANG - Web page: https://patentgrep.com/patent/US20140153192A1 ## CPC - G02B 6/4277: {Protection against electromagnetic interference [EMI], e.g. shielding means (shielding of electric apparatus H05K9/00, of instruments G12B17/00)} - H05K 9/0058: {specially adapted for optoelectronic applications} - G02B 6/4269: {with heat sinks or radiation fins} - H01R 13/6582: with resilient means for engaging mating connector - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract A receptacle assembly with improved EMI leakage reduction is described. The assembly includes a base in the form of either a guide frame or a shielding cage that received an electronic module or mating connector therein. A heat sink is provided to dissipate heat generated during operation of the connector or module and the heat sink has a portion that extends into the interior of the receptacle through an opening in the top wall thereof. The heat sink has a peripheral rim that is aligned in opposition to a rim of the top wall of the receptacle. A series of individual contact members are disposed in the top wall and arranged in a pattern extending around the opening to provide a plurality of points of electrical grounding contact between the heat sink and the receptacle. ## Claims ### Claim 1 A shielding cage, the shielding cage comprising: a plurality of walls, the walls cooperatively defining a hollow interior configured to receive a module therein, one of the walls including at least a primary wall extending in proximity and opposition to the module; an opening, the opening being defined in the primary wall and configured to receive a portion of a heat sink therein, the primary wall including a peripheral rim extending around the opening; and a plurality of contact members, each contact member being disposed on the primary wall along a peripheral rim thereof and extending away from the primary wall to contacting an opposing surface of the heat sink. ### Claim 2 (depends on 1) The shielding cage of claim 1, wherein each contact member is resilient. ### Claim 3 (depends on 2) The shielding cage of claim 2, wherein each contact member is cantilevered. ### Claim 4 (depends on 3) The shielding cage of claim 3, wherein each contact member has free ends that extend above the primary wall. ### Claim 5 (depends on 3) The shielding cage of claim 3, wherein each contact member has free ends that extend underneath the primary wall. ### Claim 6 (depends on 3) The shielding cage of claim 3, wherein each contact member has curved free ends. ### Claim 7 (depends on 1) The shielding cage of claim 1, wherein each contact member is separately formed as a strip disposed on the primary wall. ### Claim 8 A receptacle assembly configured to receive a mating connector, the receptacle assembly comprising: a conductive guide frame, the conductive guide frame including a primary top wall having an opening and a plurality of secondary walls, the walls cooperatively defining an interior space configured to receive the mating connector, the opening providing access to the interior space; and a heat sink member, the heat sink member being partially received within the interior space and the opening; wherein the guide frame further includes a plurality of conductive contact members extending away therefrom and configured to contact the heat sink member when the heat sink member is received within the opening, each contact member being arranged along the primary top wall in a pattern that surrounds the opening. ### Claim 9 (depends on 8) The receptacle assembly of claim 8, wherein each contact member is formed from the guide frame. ### Claim 10 (depends on 9) The receptacle assembly of claim 9, wherein each contact member extends from the guide frame into the interior space. ### Claim 11 (depends on 8) The receptacle assembly of claim 8, wherein each contact member extends from the guide frame toward the heat sink member. ### Claim 12 (depends on 8) The receptacle assembly of claim 8, wherein the heat sink includes a base portion, the base portion extending through the opening. ### Claim 13 (depends on 12) The receptacle assembly of claim 12, wherein the heat sink further includes a rim portion, the rim portion extending around the base portion. ### Claim 14 (depends on 13) The receptacle assembly of claim 13, wherein the rim portion contacts each contact member when the heat sink is inserted into the opening. ### Claim 15 (depends on 14) The receptacle assembly of claim 14, wherein each contact member includes free ends with curved contact portions. ### Claim 16 (depends on 8) The receptacle assembly of claim 8, wherein the guide frame further includes other contact members that contact the heat sink. ### Claim 17 (depends on 8) The receptacle assembly of claim 8, wherein the guide frame further includes a die-cast body, the die-cast body having a plurality of walls. ### Claim 18 (depends on 17) The receptacle assembly of claim 17, wherein the guide frame further includes a cover portion, the cover portion defining the top wall. ### Claim 19 (depends on 18) The receptacle assembly of claim 18, wherein the opening is oriented within the cover portion to define a rim portion extending around the opening. ### Claim 20 (depends on 19) The receptacle assembly of claim 19, wherein each contact member is arranged in a pattern in the rim portion.