公开(公告)号：US20230010623A1

公开(公告)日：2023-01-12

申请号：US17858480

申请日：2022-07-06

申请人： Dongguan Littelfuse Electronics Company Limited

发明人： Werner Johler ,  Dongjian Song ,  Libing LU

IPC分类号： B05B12/20 ,  B05B13/02

摘要： Disclosed are various pallet assemblies for arc spray applications. In some embodiments, an assembly may include a top frame comprising a plurality of recesses each operable to receive an electronic device, and a bottom frame coupled to the top frame, wherein the bottom frame comprises a plurality of support structures, and wherein each support structure of the plurality of support structures is aligned with a corresponding recess of the plurality of recesses. The assembly may further include a mechanical device coupled to the top frame and the bottom frame, wherein the mechanical device is operable to bias the top frame and the bottom frame relative to one another.

公开(公告)号：US20230085845A1

公开(公告)日：2023-03-23

申请号：US17801856

申请日：2020-05-11

申请人： Dongguan Littelfuse Electronics Company Limited

发明人： Long Min ,  Libing LU ,  Dongjian Song

IPC分类号： H01C7/12

摘要： A flat spring (100) is disclosed, for use in a surge protection device (SPD) such as a fast activation thermal fuse, to be integrated with a thermal metal oxide varistor (TMOV). The flat spring (100) has a V-shaped protrusion (110) to enable ultra-high short circuit current protection under overvoltage condition.

公开(公告)号：US11410801B2

公开(公告)日：2022-08-09

申请号：US17268352

申请日：2018-08-16

申请人： Dongguan Littelfuse Electronics Company Limited

发明人： Dongjian Song ,  Libing Lu

IPC分类号： H01C7/12 ,  H01C1/02 ,  H01C1/14 ,  H01C17/00

摘要： Provided herein are thermally protected varistor (TPV) devices including a varistor body and a terminal assembly directly coupled together. The terminal assembly may include a housing, wherein an opening is provided in a base of the housing. A lead is coupleable with the varistor body via a thermal linking material positioned within the opening of the base, the thermal linking material operable to maintain direct physical contact with the lead when the thermal linking material is below a melting point. The terminal assembly may further include a shield slidable within the housing between a first position and a second position, wherein in the first position the shield is positioned adjacent the thermal linking material, and in the second position the shield is positioned between the lead and the second side of the varistor body. The shield includes a tab for releasably coupling the shield to the housing.

公开(公告)号：US11348710B1

公开(公告)日：2022-05-31

申请号：US17318319

申请日：2021-05-12

申请人： Dongguan Littelfuse Electronics Company Limited

发明人： Dongjian Song ,  Werner Johler ,  Liang Gu ,  Libing Lu ,  Xiaolong Gong

IPC分类号： H01C7/108 ,  H01C17/00 ,  H01C1/01 ,  H01C1/14

摘要： A metal oxide varistor (MOV) device including a MOV chip having first and second electrodes disposed on opposing side thereof, a first lead frame portion including a first contact tab electrically connected to the first electrode and a first lead contiguous with the first contact tab and extending away from the MOV chip, a second lead frame portion including a second contact tab electrically connected to the second electrode and a second lead contiguous with the second contact tab and extending away from the MOV chip, and a device body encasing the MOV chip, the first contact tab, the second contact tab, and portions of the first and second leads, wherein the first and second leads extend out of the device body and are bent into flat abutment with a bottom surface of the device body.