公开(公告)号：US11636987B2

公开(公告)日：2023-04-25

申请号：US16673413

申请日：2019-11-04

申请人： Johnson Electric International AG

发明人： Joerg Gassmann ,  Felix Weidlich ,  Jens Penning ,  Michael Doecker ,  Jörn Brennenstuhl ,  Alexander Kunz ,  Andrea Straniero

IPC分类号： H01C1/14 ,  H01H1/00 ,  H01C17/065 ,  H01H11/06 ,  G01R31/327 ,  H01H9/02 ,  H01C7/02 ,  H01C17/242

摘要： The invention relates to a switch including a switch housing, a contact system and a base disposed in the switch housing, a resistive element for diagnosing a state of a switch, and at least two terminals leading from the base. The resistive element has a specific resistance value. The resistive element is a conductive material formed on the base, the terminals being electrically connected by the conductive material.

公开(公告)号：US11545827B2

公开(公告)日：2023-01-03

申请号：US16500737

申请日：2016-09-05

申请人： Littelfuse Semiconductor (Wuxi) Co., Ltd.

发明人： Kueir-Liang Lu ,  Lei Shi ,  Chao Yi Chang ,  Chuan Fang Chin

IPC分类号： H02H9/04 ,  H01C7/02 ,  H02H9/02

摘要： A surge protection apparatus may include an input terminal; an output terminal, the output terminal electrically coupled to the input terminal; a ground terminal, the ground terminal electrically coupled to the input terminal and output terminal; a positive temperature coefficient (PTC) fuse, the PTC fuse connected in electrical series between the input terminal and output terminal; a crowbar device, the crowbar device electrically connected to the ground terminal and output terminal, wherein the crowbar device is in electrical series with the PTC fuse between the input terminal and ground terminal; and a central frame portion, the central frame portion electrically coupled to the input terminal, output terminal and ground terminal, wherein the crowbar device is disposed on a first side of the central frame portion and the PTC fuse is disposed on a second side of the central frame portion, opposite the first side.

公开(公告)号：US11503674B2

公开(公告)日：2022-11-15

申请号：US16351286

申请日：2019-03-12

申请人： nVent Services GmbH

发明人： Linda D. B. Kiss ,  Mohammad Kazemi ,  Peter Martin ,  Edward Park

IPC分类号： H05B3/56 ,  H05B3/14 ,  H05B3/12 ,  H01C7/02

摘要： A heater cable produces a substantially level voltage across its cross-section, providing a uniform and controllable thermal output along its length. The heater cable includes at least one center bus wire extending axially along a central axis of the heater cable, and at least one radial bus wire extending axially through the heating cable and positioned adjacent to the center bus wire. The heater cable further includes a thermally and electrically conductive interstitial material disposed around the at least one center bus wire and the at least one radial bus wire, and a jacket disposed about the interstitial material, the at least one center bus wire, and the at least one radial bus wire.

公开(公告)号：US11488749B2

公开(公告)日：2022-11-01

申请号：US17176649

申请日：2021-02-16

申请人： Littelfuse, Inc.

发明人： Jianhua Chen ,  Rimantas Radzys

IPC分类号： H01C7/02 ,  H01B1/04 ,  H01C17/065 ,  H01C1/14

摘要： A novel heater is disclosed for a temperature sensitive actuator. The heater is a polymeric positive temperature coefficient (PPTC) device consisting of conductive filler and semi-crystalline polymer. The PPTC heater is strategically designed to have a predetermined self-regulation temperature suited to whatever application utilizes the heater. Physical characteristics of the PPTC heater, such as gap width and thickness, enable the current flow through the heater to be strategically controlled.

公开(公告)号：US20220310469A1

公开(公告)日：2022-09-29

申请号：US17252287

申请日：2020-08-28

申请人： INNOSCIENCE (ZHUHAI) TECHNOLOGY CO., LTD.

发明人： Hang LIAO ,  Qingyuan HE ,  Chunhua ZHOU

IPC分类号： H01L23/34 ,  H01L29/20 ,  H01L29/205 ,  H01L29/778 ,  H01L29/66 ,  H01C7/02 ,  H01C7/04 ,  H01C17/00

摘要： Semiconductor device structures and methods for manufacturing the same are provided. The semiconductor device structure includes a substrate, a first nitride semiconductor layer, a second nitride semiconductor layer, a first electrode, a second electrode, a gate structure and a temperature sensitive component. The first nitride semiconductor layer is disposed on the substrate. The second nitride semiconductor layer is disposed on the first nitride semiconductor layer and has a bandgap greater than that of the first nitride semiconductor layer. The first electrode, the second electrode and the gate structure are disposed on the second nitride semiconductor layer. The temperature sensitive component is disposed external to a region between the gate structure and the first electrode along a first direction in parallel to an interface of the first nitride semiconductor layer and the second nitride semiconductor layer.

公开(公告)号：US20220287187A1

公开(公告)日：2022-09-08

申请号：US17637725

申请日：2020-10-12

申请人： TDK Electronics AG

发明人： Jan Ihle ,  Thomas Bernert ,  Stefan Endler ,  Michael Krenn ,  Stephan Bigl ,  Markus Puff ,  Sebastian Redolfi

IPC分类号： H05K3/30 ,  H05K1/18 ,  H01G2/06 ,  H05K3/34 ,  H01C7/02

摘要： In an embodiment a component includes at least one carrier layer, the carrier layer having a top side and a bottom side and at least one functional layer arranged on the top side of the carrier layer, the functional layer including a material having a specific electrical characteristic, wherein the component is configured for direct integration into an electrical system as a discrete component.

公开(公告)号：US11302463B2

公开(公告)日：2022-04-12

申请号：US17128150

申请日：2020-12-20

申请人： LMS Consulting Group, LLC

发明人： Shuyong Xiao ,  Lee M. Sisler ,  Richard C. Abbott

IPC分类号： H01C7/02 ,  C09D11/108 ,  C09D11/107 ,  C09D11/106 ,  C09D11/104 ,  C09D11/037 ,  H05B3/12 ,  F25C1/22 ,  A41D13/005 ,  E04C2/52 ,  C09D11/10 ,  H01L49/02 ,  H01C7/04 ,  C09D11/52 ,  F25C5/08

摘要： An article comprising a double-switching heater that comprises a double-switching PTC ink deposited on a flexible substrate to form one or more resistors. The double-switching PTC ink comprises a first resin and a second resin; the first resin provides a first PTC effect within a first temperature range (T1, T2); the second resin provides a second PTC effect within a second temperature range (T3, T4), where T3≥T2; the first resin has an NTC effect above the first temperature range; the second PTC effect is greater than the first PTC effect; and the second PTC effect overlaps with, and is greater than, the NTC effect of the first resin. The substrate can be either thermal polyurethane, nylon or a polyester blend.

公开(公告)号：US11264789B2

公开(公告)日：2022-03-01

申请号：US16225436

申请日：2018-12-19

申请人： Fuzetec Technology Co., Ltd.

发明人： Jack Jih-Sang Chen ,  Chang-Hung Jiang

IPC分类号： H02H3/087 ,  H01C7/02 ,  H02H9/02

摘要： An over-current protection device includes first and second electrodes and a positive temperature coefficient (PTC) multilayered structure disposed between the first and second electrodes. The PTC multilayered structure includes a first polymer layer that is bonded to the first electrode, an intermediate layered unit that is bonded to said first polymer layer and that includes a second polymer layer, a third polymer layer that is bonded to and disposed between the intermediate layered unit and the second electrode. The first, second and third polymer layers respectively have first, second and third volume resistances, the second volume resistance being higher than the first and third volume resistances.

公开(公告)号：US11152141B2

公开(公告)日：2021-10-19

申请号：US15734221

申请日：2019-06-21

申请人： TDK Electronics AG

发明人： Michael Hofstätter ,  Alfred Hofrichter ,  Thomas Feichtinger

IPC分类号： H01C7/02 ,  H01C7/04 ,  H01C1/14

摘要： A ceramic multi-layer component and a method for producing a ceramic multi-layer component are disclosed. In an embodiment a ceramic multi-layer component includes a stack with ceramic layers and electrode layers arranged between them, wherein the ceramic layers and the electrode layers are arranged above one another along a stacking direction, wherein at least one first electrode layer extends along a first main extension direction from a first end region to a second end region of the first electrode layer, and wherein the at least one first electrode layer has a current-carrying capacity that decreases along the first main extension direction.

公开(公告)号：US20210313097A1

公开(公告)日：2021-10-07

申请号：US17201548

申请日：2021-03-15

申请人： Littelfuse, Inc.

发明人： Chun-Kwan Tsang ,  Jianhua Chen ,  Ann O. Banich

IPC分类号： H01C7/02 ,  H02H9/02

摘要： Polymeric positive temperature coefficient (PPTC) bodies and fuse devices formed therefrom are described. In various embodiments, the PPTC bodies comprise a matrix polymer and a conductive filler comprising a compound of general formula Mn+1AXn, where M is a transition d metal element, A is a p-block element, X is carbon or nitrogen, and n is 1, 2 or 3.