# US 11,114,715 B2 · Enclosure assemblies with improved electromagnetic compatibility > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,715 B2 - Document ID: US11114715B2 - Status: Granted - Kind: B2 - Application number: 16/211,727 - Filed: 2018-12-06 - Published: 2020-06-11 - Granted: 2021-09-07 - Earliest claimed: 2018-12-06 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Timothy Harris; Hoa T. Dinh - Web page: https://patentgrep.com/patent/US11114715B2 ## CPC - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60K 1/04: of the electric storage means for propulsion - B60R 16/0215: {Protecting, fastening and routing means therefor} - H01M 50/124: having a layered structure - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/224: Metals - H01M 50/227: Organic material - H01M 50/231: having a layered structure - H01M 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) - H01M 50/262: with fastening means, e.g. locks - H01M 50/276: Inorganic material - H01M 50/278: Organic material - H01M 50/282: having a layered structure - H01M 50/50: Current conducting connections for cells or batteries - H05K 5/03: Covers - H05K 9/0084: {comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition} - B60K 6/28: characterised by the electric energy storing means, e.g. batteries or capacitors - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract This disclosure details exemplary electrical module designs for use in electrified vehicles. An exemplary electrical module (e.g., a battery pack, control module, etc.) may include a component (e.g., battery array, bussed electrical center, battery electric control module, etc.) and an enclosure assembly that houses the component. The enclosure assembly may include a polymer-based substrate and a metallic foil that is adapted to improve an electromagnetic compatibility of the polymer-based substrate. A compression limiter may be positioned within the enclosure assembly and is adapted to establish a conductive path between the metallic foil and a separate metallic component (e.g., a fastener) of the electrical module. ## Claims ### Claim 1 A vehicle electrical module, comprising: a component; an enclosure assembly housing the component, wherein the enclosure assembly includes a polymer-based substrate and a metallic foil adapted to improve an electromagnetic compatibility of the polymer-based substrate; and a compression limiter received within an opening of the enclosure assembly and adapted to establish a conductive path between the metallic foil and a different metallic component, wherein a first portion of the metallic foil is located inwardly from an outer layer of the polymer-based substrate and a second portion of the metallic foil lines a surface of the outer layer that circumscribes the opening. ### Claim 2 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the vehicle electrical module is a battery pack or a control module. ### Claim 3 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the component is a battery array, a bussed electrical center (BEC), or a battery electric control module (BECM). ### Claim 4 (depends on 1) The vehicle electrical module as recited in claim 1, wherein, together, the polymer-based substrate and the metallic foil establish a wall of the enclosure assembly. ### Claim 5 (depends on 4) The vehicle electrical module as recited in claim 4, wherein the wall is part of a cover of the enclosure assembly. ### Claim 6 (depends on 4) The vehicle electrical module as recited in claim 4, wherein the wall is part of a tray of the enclosure assembly. ### Claim 7 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the metallic foil is sandwiched between an outer layer and an inner layer of the polymer-based substrate. ### Claim 8 (depends on 7) The vehicle electrical module as recited in claim 7 wherein the outer layer is constructed of polyamide, the inner layer is constructed of polypropylene, and the metallic foil is constructed of aluminum. ### Claim 9 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the polymer-based substrate is secured to an exterior surface of the metallic foil. ### Claim 10 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the polymer-based substrate is secured to an interior surface of the metallic foil. ### Claim 11 (depends on 1) The vehicle electrical module as recited in claim 1, wherein a lower plateau of the compression limiter is received against the first portion of the metallic foil that is between the outer layer and an inner layer of the polymer-based substrate, and a circumferential wall of the compression limiter protrudes upwardly from the lower plateau and is received against the second portion of the metallic foil that lines the surface of the outer layer that circumscribes the opening. ### Claim 12 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the compression limiter is flush relative to an inner layer of the polymer-based substrate and is countersunk relative to the outer layer of the polymer-based substrate. ### Claim 13 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the different metallic component is a fastener. ### Claim 14 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the metallic foil, the compression limiter, and the different metallic component are each constructed of the same metallic material. ### Claim 15 (depends on 1) The vehicle electrical module as recited in claim 1, wherein the enclosure assembly includes a tray, a first cover, and a second cover. ### Claim 16 (depends on 13) The vehicle electrical module as recited in claim 13, wherein the second portion of the metallic foil directly contacts a head of the fastener when the fastener is received within the opening. ### Claim 17 (depends on 13) The vehicle electrical module as recited in claim 13, wherein a head of the fastener contacts the outer layer but not the compression limiter. ### Claim 18 (depends on 11) The vehicle electrical module as recited in claim 11, wherein a surface of the inner layer that circumscribes the opening is offset from the surface of the outer layer that circumscribes the opening to accommodate a stepped flange design of the compression limiter. ### Claim 19 (depends on 18) The vehicle electrical module as recited in claim 18, wherein the surface of the inner layer circumscribes a lower portion of the opening and the surface of the outer layer circumscribes an upper portion of the opening, and further wherein the lower portion expands radially outwardly of the upper portion. ### Claim 20 A vehicle electrical module, comprising: a battery array; an enclosure assembly housing the battery array, wherein the enclosure assembly includes a polymer-based substrate and a metallic foil that is secured to the polymer-based substrate and adapted to improve an electromagnetic compatibility of the polymer-based substrate; and a compression limiter received within an opening of the enclosure assembly and adapted to establish a conductive path between the metallic foil and a fastener received through the opening, wherein a first portion of the metallic foil is located between an outer layer and an inner layer of the polymer-based substrate and a second portion of the metallic foil lines a surface of the outer layer that circumscribes the opening, wherein the compression limiter is countersunk relative to an outermost surface of the outer layer of the polymer-based substrate.