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公开(公告)号：US09773589B1
公开(公告)日：2017-09-26
申请号：US15192720
申请日：2016-06-24
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
CPC classification number: H01C7/028 , C08L23/06 , C08L51/06 , C08L2203/20 , C08L2205/025 , C08L2205/03 , C08L2205/035 , H01C1/14
Abstract: A PTC circuit protection device includes a PTC element and two electrodes attached to the PTC element. The PTC element includes a polymer matrix and a particulate conductive filler dispersed in the polymer matrix. The polymer matrix is made from a hetero-phase rheological polymer composition that contains first, second and third polyolefin components, the first, second and third polyolefin components being co-melted together and then solidified to form the polymer matrix. The first polyolefin component has a melt flow rate ranging from 0.1 to 2.5 g/10 min, the second polyolefin component has a melt flow rate ranging from 20 to 30 g/10 min, and the third polyolefin component has a melt flow rate of less than 0.00001 g/10 min measured under a temperature of 190° C. and a load of 2.16 Kg.
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公开(公告)号：US09502162B2
公开(公告)日：2016-11-22
申请号：US14509116
申请日：2014-10-08
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: A PTC circuit protection device includes a PTC polymer material and two electrodes attached to the PTC polymer material. The PTC polymer material includes a polymer matrix and a particulate conductive filler dispersed in the polymer matrix, the conductive filler including conductive non-carbonaceous particles and conductive carbon particles. The conductive carbon particles have an average particle size ranging from 40 to 100 nm, a DBP oil-absorption ranging from 60 to 120 cc/100 g, and a volatile content ranging from 0.2 to 2.0 wt %. The conductive carbon particles are in an amount ranging from 1 to 14 wt % based on the total weight of the PTC polymer material.
Abstract translation: PTC电路保护装置包括PTC聚合物材料和附接到PTC聚合物材料的两个电极。 PTC聚合物材料包括聚合物基质和分散在聚合物基质中的颗粒状导电填料，导电填料包括导电非碳质颗粒和导电碳颗粒。 导电性碳粒子的平均粒径为40〜100nm，DBP吸油量为60〜120cc / 100g，挥发成分为0.2〜2.0重量％。 基于PTC聚合物材料的总重量，导电碳颗粒的量为1至14重量％。
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公开(公告)号：US12014851B2
公开(公告)日：2024-06-18
申请号：US17967804
申请日：2022-10-17
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang , Ching-Chiang Yeh , Ming-Chun Lee
CPC classification number: H01C7/02 , H01C1/1406
Abstract: An integrated over-current protection device includes a positive temperature coefficient (PTC) component, a first conductive unit, a second conductive unit, a first conductive via, and a second conductive via. The PTC component includes a first PTC body, and has opposing first and second surfaces. The first conductive unit is disposed on the first surface, and includes a first electrode and a first conductive pad electrically insulated from the first electrode. The second conductive unit is disposed on the second surface, and includes a second electrode and a second conductive pad electrically insulated from the second electrode. The first conductive via extends through the first conductive unit and the PTC component to electrically connect the first electrode to the second conductive pad. The second conductive via extends through the second conductive unit and the PTC component to electrically connect the second electrode to the first conductive pad.
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公开(公告)号：US11264789B2
公开(公告)日：2022-03-01
申请号：US16225436
申请日：2018-12-19
Applicant: Fuzetec Technology Co., Ltd.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: 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.
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公开(公告)号：US10418158B1
公开(公告)日：2019-09-17
申请号：US15964877
申请日：2018-04-27
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: A composite circuit protection device includes a polymer positive temperature coefficient (PPTC) component, a voltage-dependent resistor, a first conductive lead and a second conductive lead. The PPTC component is formed with a hole and includes a positive temperature coefficient (PTC) polymeric layer, and first and second electrode layers respectively disposed on two opposite surfaces of the PTC polymeric layer. The hole is formed in the PTC polymeric layer. The voltage-dependent resistor is connected to the second electrode layer of the PPTC component. The first and second conductive leads are respectively bonded to the first electrode layer of the PPTC component and the voltage-dependent resistor.
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Patent Agency Ranking
公开(公告)号：US12260975B2
公开(公告)日：2025-03-25
申请号：US17940989
申请日：2022-09-08
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: An over-voltage circuit protection device includes a voltage-dependent resistor component, and a printed circuit board (PCB) component connected to the voltage-dependent resistor component through first and second conductive lead layers. The PCB component includes a PCB body, a first conductive portion, a second conductive portion, at least one first conductive via and at least one second conductive via. The first and second conductive portions are disposed on the PCB body, and are electrically insulated from each other. The first and second conductive vias extend through the PCB body, and are defined by via-defining walls respectively covered by the first and second conductive portions.
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公开(公告)号：US11043804B2
公开(公告)日：2021-06-22
申请号：US16510156
申请日：2019-07-12
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: A over-current protection device includes a positive temperature coefficient (PTC) polymeric element having two opposite surfaces, two electrodes respectively connected to the surfaces of the PTC polymeric element, and a power-free trip indicator disposed on at least one of the electrodes for sensing temperature of the over-current protection device.
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公开(公告)号：US10971287B1
公开(公告)日：2021-04-06
申请号：US16932582
申请日：2020-07-17
Applicant: FUZETEC TECHNOLOGY CO., LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: A composite circuit protection device includes a positive temperature coefficient (PTC) component, a voltage-dependent resistor (VDR), and first and second conductive leads respectively bonded to the PTC component and the VDR. The PTC component includes a PTC layer having two opposite PTC surfaces, and first and second electrode layers each having an electrode surface which connects to and has an area smaller than that of a respective one of the PTC surfaces. The VDR includes a VDR layer having two opposite resistor surfaces, and third and fourth electrode layers each having an electrode surface which connects to and has an area smaller than that of a respective one of the resistor surfaces.
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公开(公告)号：US10325701B1
公开(公告)日：2019-06-18
申请号：US16142054
申请日：2018-09-26
Applicant: Fuzetec Technology Co., Ltd.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
Abstract: An over-current protection device includes first and second electrodes, and a positive temperature coefficient multilayered structure including first, second, and third polymer layers. The first polymer layer is bonded to the first electrode and includes a polymer matrix made from a polymer composition containing a grafted olefin-based polymer. The second polymer layer has a through hole and includes a polymer matrix made from a polymer composition containing a non-grafted olefin-based polymer and substantially free of a grafted olefin-based polymer. The third polymer layer is bonded to the second electrode and includes a polymer matrix made from a polymer composition containing a grafted olefin-based polymer.
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公开(公告)号：US09613736B1
公开(公告)日：2017-04-04
申请号：US14870489
申请日：2015-09-30
Applicant: FUZETEC TECHNOLOGY CO. LTD.
Inventor： Jack Jih-Sang Chen , Chang-Hung Jiang
CPC classification number: H01C17/006 , H01C1/1406 , H01C7/008 , H01C7/027 , H01C17/06586 , H01C17/07 , H01C17/28 , H01C17/281
Abstract: A method of making a PTC protection chip device includes: preparing an assembly of a PTC polymer material, a spacer unit, and first and second electrode sheets of a metal-plated copper foil, the PTC polymer material and the spacer unit of the assembly being sandwiched between and cooperating with the first and second electrode sheets to form a stack; subjecting the stack to a hot pressing process, so that the first and second electrode sheets contact and are pressed against the PTC polymer material and the spacer unit and so that the PTC polymer material is bonded to and cooperates with the first and second electrode sheets to form a PTC laminate; and cutting the PTC laminate so as to form the PTC circuit protection chip device.
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