公开(公告)号：US20190306628A1

公开(公告)日：2019-10-03

申请号：US15940110

申请日：2018-03-29

Applicant: BAE Systems Controls Inc.

Inventor： Stephen A. McKeown ,  Rafael D. Garcia ,  Joshua P. Stewart

IPC: H04R9/02 ,  H04R1/28

Abstract: Apparatus for air cooling includes an acoustic transducer secured to a body. The body has a first wall including a first opening and the acoustic transducer forms a second wall facing the first wall. A chamber within the body is defined between the acoustic transducer and the first wall and is in fluid communication with the chamber. The first wall is interposed between a third wall and the chamber. The third wall includes a second opening facing the first opening. An inflow path is disposed between the first wall and the third wall. The inflow path includes outer ends communicating with the outside air and inner ends connected to the first and second openings. The acoustic transducer includes a diaphragm that vibrates in response to a drive system causing outside air incoming through the inflow path into the chamber to flow from the chamber through the first and second openings.

公开(公告)号：US20240312671A1

公开(公告)日：2024-09-19

申请号：US18121225

申请日：2023-03-14

Applicant: BAE Systems Controls Inc.

Inventor： Matthew S. Boecke ,  Joshua P. Stewart ,  Arthur P. Lyons ,  Robert J. Vovos ,  Jeffrey E. Coughlin ,  Brad J. Mulcahy

IPC: H01B7/30 ,  H01B9/02

CPC classification number: H01B7/30 ,  H01B9/028

Abstract: A polyphase cable includes a first conductor, a first shield including conductive material coaxially around the first conductor, and a first insulating material between and separating the first conductor and the first shield. The polyphase cable further includes a second conductor, a second shield including conductive material coaxially around the second conductor, and a second insulating material between and separating the second conductor and the second shield. In an example, the first shield is in physical contact, and in electrical contact, with the second shield. In an example, the polyphase cable is configured to conduct polyphase Alternating Current (AC) having a frequency of at least 100 Hertz (Hz) and/or at most 10,000 Hz. In an example, one or both of a first end and a second end of one or both of the first shield and the second shield are configured to be grounded.

公开(公告)号：US20240313272A1

公开(公告)日：2024-09-19

申请号：US18121223

申请日：2023-03-14

Applicant: BAE Systems Controls Inc.

Inventor： Joshua P. Stewart ,  Matthew S. Boecke ,  Peter J. Arnold ,  Jay R. Johnson ,  Jamie-Lynn Ganoung ,  Thomas E. Yale, JR. ,  Robert J. Arbogast ,  William J. Doak

IPC: H01M10/42

CPC classification number: H01M10/4285

Abstract: A system for testing thermal runaway in a battery cell includes a first layer of first dielectric material at least in part wrapped around the battery cell, and a wire at least in part wrapped around the first layer of first dielectric material. The system further includes a second layer of second dielectric material at least in part wrapped around the wire, and a power source configured to supply power to the wire. In an example, the first layer of first dielectric material includes a polyimide film, and the second layer of second dielectric material includes mica. The system further includes a temperature sensor in contact with the first layer, the second layer, and/or the battery cell. A controller is to receive a temperature reading from the temperature sensor, and control a power supplied by the power source to the wire, based at least in part on the temperature reading.

公开(公告)号：US20230344069A1

公开(公告)日：2023-10-26

申请号：US18028906

申请日：2021-09-30

Applicant: BAE Systems Controls Inc.

Inventor： William J. Doak ,  Christopher P. Akulis ,  Peter J. Arnold ,  Matthew S. Boecke ,  Dan A. Snavely ,  Joshua P. Stewart

IPC: H01M50/342 ,  H01M10/658 ,  H01M10/0525 ,  H01M50/213

CPC classification number: H01M50/3425 ,  H01M10/658 ,  H01M10/0525 ,  H01M50/213 ,  H01M2200/20

Abstract: A lithium-ion battery assembly includes a plurality of battery cells in a spaced-apart and generally parallel arrangement, each cell of the battery cells extending along a central axis and having a first end portion with a negative terminal and a second end portion with a positive terminal. The assembly includes a first capture plate and a second capture plate, where at least the first capture plate defines capture plate openings corresponding to the plurality of battery cells, the first capture plate spaced from and oriented generally parallel to the second capture plate. Each of the plurality of battery cells extends between the first and second capture plates and is coaxially arranged with one of the capture plate openings in the first capture plate. The assembly optionally includes a body between the capture plates, the body defining a void for each battery cell.

公开(公告)号：US20240253167A1

公开(公告)日：2024-08-01

申请号：US18160571

申请日：2023-01-27

Applicant: BAE Systems Controls Inc.

Inventor： Jeffrey E. Coughlin ,  Peter J. Arnold ,  Joseph W. Sienko ,  Matthew S. Boecke ,  Joshua P. Stewart

IPC: B23K37/04 ,  B23K31/12

CPC classification number: B23K37/0426 ,  B23K31/125 ,  B23K2101/36

Abstract: Welding plates and a welding system are provided. A welding plate comprises a first portion and a second portion. The first portion comprises a plurality of recesses. Each recess comprises an elastomer configured to compress under a force and a tip. A proximal end of the tip is in contact with the elastomer. The elastomer has a durometer rating less than a predetermined threshold. The second portion may be mounted to the first portion. The second portion has a plurality of first openings. Each first opening corresponds to a recess. A respective tip extends through a respective first opening. Each tip is slidably mounted within the welding plate. Each tip has a central opening forming a welding channel.

公开(公告)号：US20240204267A1

公开(公告)日：2024-06-20

申请号：US18539584

申请日：2023-12-14

Applicant: BAE Systems Controls Inc.

Inventor： Joshua P. Stewart

IPC: H01M10/42 ,  H01M10/48 ,  H01M50/204 ,  H01M50/249

CPC classification number: H01M10/425 ,  H01M10/482 ,  H01M50/204 ,  H01M50/249 ,  H01M2220/20

Abstract: A battery system, battery packs and battery modules are disclosed. The battery module comprises a plurality of cells mounted within a housing. The module has a plurality of groups of cells. Each group comprises a plurality of parallel connected cells from among the plurality of cells. The plurality of groups is connected in series. The module has a plurality of current limiting elements. Each current limiting element are electrically connected in a parallel path to one or both terminals of cells which are parallelly connected. The current limiting elements may be integrated in or separate from busbars which are connected to terminals of the cells. Impedance balancing is provided to the parallel fusing scheme to improve the overall reliability of the battery module. The battery module configuration allows for continuity assurance testing of the parallel connections to ensure detection of blown fuses or broken connections in the module.

公开(公告)号：US20240313287A1

公开(公告)日：2024-09-19

申请号：US18121229

申请日：2023-03-14

Applicant: BAE Systems Controls Inc.

Inventor： Benjamin T. Webster ,  Peter J. Arnold ,  Joshua P. Stewart ,  Jay R. Johnson ,  Matthew S. Boecke

IPC: H01M10/613 ,  H01M10/625 ,  H01M10/6554

CPC classification number: H01M10/613 ,  H01M10/625 ,  H01M10/6554

Abstract: A method includes forming a cold plate including conductive material and having a plurality of openings, and coating the cold plate with dielectric coating. The method further includes placing the cold plate proximal to a metal plate including one or more metals, and exposing the cold plate to moisture and/or water. In an example, a minimum lateral distance between the cold plate and the metal plate is at most 0.5 inch. The method further includes, while the cold plate is exposed to the moisture and/or the water, applying a voltage across the cold plate and the metal plate, and measuring a resultant leakage current through the cold plate. A thickness of the dielectric coating on an edge of an opening of the plurality of openings is at least 0.003 inch.

公开(公告)号：US20240204379A1

公开(公告)日：2024-06-20

申请号：US18539469

申请日：2023-12-14

Applicant: BAE Systems Controls Inc.

Inventor： Joshua P. Stewart ,  Matthew S. Boecke ,  Jay R. Johnson ,  Peter J. Arnold

IPC: H01M50/583 ,  H01M10/42 ,  H01M10/48 ,  H01M50/213 ,  H01M50/503 ,  H01M50/509

CPC classification number: H01M50/583 ,  H01M10/425 ,  H01M10/482 ,  H01M50/213 ,  H01M50/503 ,  H01M50/509 ,  H01M2200/103 ,  H01M2220/20

Abstract: A battery system, battery packs and battery modules are disclosed. The battery module comprises a plurality of cells mounted within a housing. The housing has a plurality of openings respectively for a corresponding cell. The module has a plurality of groups of cells. Each group comprises a plurality of parallel connected cells from among the plurality of cells. The plurality of groups is connected in series. The module has a plurality of current limiting elements. Each current limiting element are electrically connected in a parallel path to one or both terminals of cells which are parallelly connected. The current limiting elements may be passive or active elements. The current limiting elements may be integrated in or separate from busbars which are connected to terminals of the cells.