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    WELD ELECTRODE PLUGS WITH POLYMERIC INSERTS FOR LOSS-OF-COOLING DETECTION IN WELDING SYSTEMS
    21.
    发明申请
    WELD ELECTRODE PLUGS WITH POLYMERIC INSERTS FOR LOSS-OF-COOLING DETECTION IN WELDING SYSTEMS 审中-公开

    公开(公告)号：US20190099830A1

    公开(公告)日：2019-04-04

    申请号：US15723484

    申请日：2017-10-03

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Anthony L. Smith ,  Joseph L. Jablonski ,  Richard J. Skurkis ,  Nicholas W. Pinto

    IPC: B23K11/30 ,  B23K9/32 ,  B23K9/095 ,  B23K9/173

    Abstract: Disclosed are weld electrode plugs with polymeric inserts for loss-of-cooling detection, methods for making or for using such weld electrode plugs, and electric welding systems equipped with loss-of-cooling detection plugs. A disclosed loss-of-cooling detection assembly includes a plug that attaches to the weld shank of a welding system such that the plug fluidly couples to a coolant bore within the shank. The plug includes a plug body with a clearance hole extending therethrough. An insert detachably mounts to the plug such that the insert fluidly seals the clearance hole. This insert is fabricated from a polymeric material, such as a shape memory polymer, that alters a physical property, such as shape/size, of the insert responsive to changes in temperature and/or pressure of coolant fluid in the shank's bore. When this physical property is altered, the insert unseals the clearance hole causing a detectable leak of fluid from the shank.

    BATTERY ELECTRIC SYSTEM WITH ALTERNATING CURRENT SELF-HEATING MODE
    23.
    发明申请
    BATTERY ELECTRIC SYSTEM WITH ALTERNATING CURRENT SELF-HEATING MODE 有权

    公开(公告)号：US20240429481A1

    公开(公告)日：2024-12-26

    申请号：US18339698

    申请日：2023-06-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shuonan Xu ,  Lei Hao ,  Neeraj S. Shidore ,  Chandra S. Namuduri ,  Nicholas W. Pinto

    IPC: H01M10/615 ,  H01M10/42 ,  H01M10/625 ,  H01M10/63 ,  H01M10/657

    Abstract: A battery electric system includes an inverter connected to a battery pack and a direct current (DC) voltage bus, first and second electrical switches, and a battery controller. The first switch is connected between the inverter and battery pack, and opens during an alternating current (AC) self-heating mode of the battery pack. This mode includes generating an AC waveform through the battery pack via the inverter at a controlled amplitude. The second switch, which is connected to the inverter and the first switch, closes during the self-heating mode. The controller, in response to calibrated entry criteria, opens the first switch, closes the second switch, and controls ON/OFF conducting states of the power switches to self-heat the battery pack using the AC waveform. The entry criteria includes required charging of the battery pack while a temperature of the battery pack is less than a calibrated temperature limit.

    Heat pipe with multiple stages of cooling
    24.
    发明授权
    Heat pipe with multiple stages of cooling 有权

    公开(公告)号：US11800684B2

    公开(公告)日：2023-10-24

    申请号：US17152178

    申请日：2021-01-19

    Applicant: GM Global Technology Operations LLC

    Inventor： Nicholas W. Pinto ,  Chih-hung Yen ,  Nathan Thompson ,  Anne M. Dailly

    IPC: H05K7/20 ,  F28D15/04 ,  G08B21/18

    CPC classification number: H05K7/20336 ,  F28D15/04 ,  F28D15/046 ,  G08B21/182 ,  H05K7/20136 ,  H05K7/20381

    Abstract: A heat pipe is provided for cooling an electronic component of a printed circuit board. The heat pipe includes a tube having an inner diameter surface defining a bore, with the tube having first and second ends along the bore. The heat pipe further includes a sorbent material coated onto the inner diameter surface of the tube, a first liquid contained within the bore, and a second liquid adsorbed by the sorbent material. The second liquid has a second boiling temperature that is higher than a first boiling temperature of the first liquid. The first liquid vaporizes into a first vapor, in response to the tube receiving heat from the electronic component and the first liquid reaching the first boiling temperature. The second liquid is desorbed from the sorbent material and vaporizes into a second vapor in response to the second liquid reaching the second boiling temperature.

    CLIMATE CONTROL DEVICE
    26.
    发明申请
    CLIMATE CONTROL DEVICE 有权

    公开(公告)号：US20220219510A1

    公开(公告)日：2022-07-14

    申请号：US17148025

    申请日：2021-01-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Nicholas W. Pinto ,  Anne M. Dailly ,  Kuo-huey Chen ,  Nathan Thompson

    IPC: B60H3/02

    Abstract: A climate control device includes a radiant heater for radiating heat and a porous material attached to the radiant heater. The porous material desorbs a plurality of water molecules, in response to the porous material receiving heat from the radiant heater and raising a temperature of the water molecules in the porous material to a boiling temperature threshold. The porous material adsorbs the water molecules in response to the temperature of the water molecules falling below the boiling temperature threshold.

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