Formulation for a stable electrically conductive polymer

    公开(公告)号:US11651868B1

    公开(公告)日:2023-05-16

    申请号:US17584819

    申请日:2022-01-26

    CPC classification number: H01B1/02 C08K9/02 C08K2201/001 H01B1/20 H01B1/22

    Abstract: The present invention is an electrically conductive polymer that is stable with respect to both time and environmental conditions. Most electrically conductive polymers have bulk resistance that varies (increases) over time. The current electrically conductive polymers also vary when they are exposed to harsh environments. The time and environmental variability is attributable to both the type of fiber and the type of coating used. The present invention uses stainless steel fibers that have an outer most coating that is one of tin, tin-lead, tin-silver, tin-palladium, tin-silver-palladium, and silver-palladium. The coating comprises 5%-40%, by weight, of the coating fiber. The coated fiber comprises 25%-35%, by weight, of the electrically conductive polymer. The bulk polymer is at least one of polypropylene (“PP”), polycarbonate (“PC”), acrylonitrile butadiene styrene (“ABS”), polyethylene (“PE”), polyether ether ketone (“PEEK”), and polyethylene terephthalate (“PET”).

    RFID-enabled electrical connector

    公开(公告)号:US11522319B2

    公开(公告)日:2022-12-06

    申请号:US16894950

    申请日:2020-06-08

    Abstract: The present invention is an RFID-enabled electrical connector with connector position assurance (“CPA”) features. The RFID tag is only readable after the CPA features have been fully deployed. The electrical connector is comprised of at least two parts, a socket and a plug. In the illustrated embodiment, a connector housing is positioned between the socket and plug, with both the socket and plug connecting to the connector housing. Until the CPA feature has been fully deployed, the RFID tag is covered by an electrically conductive material, preferably an electrically conductive plastic. The RFID tag can only be properly read after the CPA feature has been fully deployed. To prevent signal leakage, the RFID tag can alternately be placed inside a five-sided box fabricated from electrically conductive material, preferably electrically conductive plastic.

    System and method employing wireless high-voltage interlocking loop using RFID-enabled electrical connectors containing conductive material

    公开(公告)号:US11256888B2

    公开(公告)日:2022-02-22

    申请号:US17192771

    申请日:2021-03-04

    Abstract: The present invention is a wireless HVIL system and method using RFID-enabled Electrical Connector with connector position assurance (“CPA”) features. Each RFID-enabled Electrical Connector has an RFID tag that is only readable after the CPA features of the RFID-enabled Electrical Connector have been fully deployed. If a CPA feature has not been fully deployed, electrically conductive material will obscure the RFID tag so that it cannot be read. At least one RFID reader is distributed so that all of the RFID tags are within its effective range. When system power is cycled on, the at least one RFID reader emits a digital pulse and reads all of the non-obscured RFID tags. If the at least one RFID reader detects all of the expected RFID tags, an HVIL processor will shut an HVIL switch, and power will be supplied to all HV devices.

    System and method using a hand-mounted force sensor to verify installation of connector-position-assurance enabled electrical connector

    公开(公告)号:US11652320B2

    公开(公告)日:2023-05-16

    申请号:US17315398

    申请日:2021-05-10

    CPC classification number: H01R13/641 G01L1/005 H01R13/639 G06F3/016

    Abstract: The present invention is a system and method using a hand-mounted force sensor to verify installation of a CPA-enabled electrical connector. The system has at least one CPA-enabled electrical connector with a locking button; at least one hand-mounted force sensor; an interface board; a transmission channel; a system processor; a non-transitory computer readable memory element; a display; and an input. The hand-mounted force sensors have an electrical output that is proportional to the force. By interposing a force sensor between the locking button and the source of force, the force to close the locking tab can be read. The method is accomplished with the steps of mounting at least one force sensor so that it will record the force exerted when depressing a locking button of a CPA-enabled electrical connector; depressing the locking button; measuring the force; recording the force; comparing the force to a pre-determined threshold; passing the CPA-enabled electrical connector if the force was less than the pre-determined threshold and otherwise failing it.

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