公开(公告)号：US20220069367A1

公开(公告)日：2022-03-03

申请号：US17414626

申请日：2019-10-25

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA ,  Chisato KOMORI ,  Koichi MUKAI

IPC: H01M10/42 ,  H01H37/76

Abstract: Provided are a protecting device and a battery pack capable of preventing floating of a blowout member, preventing deformation of a meltable conductor, and maintaining predetermined current capacity and blowout properties. The protecting device 1 includes: a meltable conductor 2; and a blowout member 4 connected to one surface of the meltable conductor 2, wherein the blowout member 4 includes: an insulating substrate 3; and a deformation suppressing electrode 5 formed on a front surface 3a connected to the meltable conductor 2 of the insulating substrate 3 and connected to the meltable conductor 2 to suppress deformation of the meltable conductor 2.

公开(公告)号：US20250157765A1

公开(公告)日：2025-05-15

申请号：US18729510

申请日：2022-12-26

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA ,  Chisato KOMORI ,  Atsuya YOSHINARI

IPC: H01H37/76 ,  H01H37/04 ,  H01H37/34 ,  H02J7/00

Abstract: Provided is a protecting device with a built-in heat generator that can handle higher voltages and higher currents and blows the current path more safely and quickly without causing damage inside the device. The protecting device includes: a fuse element 2 and a blowing member 3, and the blowing member 3 includes an insulating substrate 4, a heat generator 5, an insulating layer 6 covering the heat generator 5, a heat-generator lead-out electrode 7 superimposed with the heat generator 5 via the insulating layer 6, and a heat-dissipating portion 8 formed on the front surface 4a side of the insulating substrate 4 at least in an area superimposed with the heat generator 5 and is electrically independent from the heat-generator lead-out electrode 7, a holding electrode 10 formed on the back surface 4b of the insulating substrate 4 and holds the melted conductor 2a of the fuse element 2, and a through-hole 11 connecting the heat-generator lead-out electrode 7 and the holding electrode 10, the fuse element 2 being connected to the holding electrode 10.

公开(公告)号：US20250095934A1

公开(公告)日：2025-03-20

申请号：US18729515

申请日：2022-12-26

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA

IPC: H01H37/76 ,  H01M50/204 ,  H01M50/583

Abstract: Even when the blowing member generates heat over a long period of time, the fixing state of the blowing member is stabilized and the current path is interrupted safely and quickly. A protecting device 1 includes a case 28, a fuse element 2, a blowing member 3 connected to at least one side of the fuse element 2 to blow the fuse element 2,a fixing member 8 provided on an inner surface of the case 28 and in contact with the blowing member 3 to suppress the wobbling of the blowing member 3, the blowing member 3 has an insulating substrate 4 and a heat generator 5 formed on the insulating 10 substrate 4, and the insulating substrate 4 is connected to the fuse element 2 by a bonding material 9 that is softened by the heat generated by the heat generator 5.

公开(公告)号：US20230146486A1

公开(公告)日：2023-05-11

申请号：US17918423

申请日：2021-04-15

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA ,  Chisato KOMORI

IPC: H01M50/583 ,  H01M10/0525

CPC classification number: H01M50/583 ,  H01M10/0525

Abstract: A protection element includes: an insulating substrate; a fuse element provided on the insulating substrate; a heating element to blow the fuse element; a heating element power supply electrode; a first extraction electrode leading from the heating element power supply electrode and connected to a first end of the heating element; an intermediate electrode connected to the fuse element; a heating element connecting electrode connecting the heating element and the intermediate electrode; a second extraction electrode leading from the heating element connection electrode and connected to a second end of the heating element; and an insulating layer that covers the heating element, the first extraction electrode, and the second extraction electrode, and on which the intermediate electrode is laminated. The intermediate electrode does not overlap with the first extraction electrode and overlaps with the second extraction electrode with the insulating layer interposed therebetween.

公开(公告)号：US20220200111A1

公开(公告)日：2022-06-23

申请号：US17602629

申请日：2020-03-25

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA ,  Chisato KOMORI

IPC: H01M50/581 ,  H02H7/18 ,  H02H3/20 ,  H01H85/055 ,  H01H85/20 ,  H01M10/48

Abstract: To provide a protecting device and a battery pack using the same, which are less likely to cause a spark even when a high voltage is applied and can safely and quickly interrupt the current path. A protecting device includes: an insulating substrate 2; a fuse element 3; a heat-generator 4 which generates heat to blow the fuse element 3; a heat-generator feeding electrode 5 which serves as a power-feeding terminal to the heat-generator 4; an insulating layer 6 which covers the heat-generator 4; and a heat-generator lead-out electrode 7 which is formed along the heat-generator 4 on the insulating layer 6 and holds the melted conductor 3a of the fuse element 3, wherein, when the heat-generator 4 is energized, the heat-generator feeding electrode 5 side thereof works as a high potential portion and the heat-generator lead-out electrode 7 side thereof works as a low potential portion, and in the heat-generator lead-out electrode 7, an overlapping area in which a distal end portion 7a extending in the high potential portion side of the heat-generator 4 overlaps the heat-generator 4 is smaller than an overlapping area in which a proximal end portion 7b extending in the low potential portion side of heat-generator 4 overlaps the heat-generator 4.

公开(公告)号：US20220336173A1

公开(公告)日：2022-10-20

申请号：US17638603

申请日：2020-08-18

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA ,  Chisato KOMORI

IPC: H01H37/76 ,  H01H37/04 ,  H01M50/581

Abstract: Provided are a protecting device capable of safely and quickly interrupting a current path by restricting heat absorption to a lower case, and a battery pack using the same. A protecting device includes: a meltable conductor 3; and a housing 6 including a lower case 4 and an upper case 5, the housing being formed by joining the lower case 4 and the upper case 5, and the lower case 4 is provided with a recessed portion 23 having support portions 21 provided at opposing side edges of the recessed portion 23 and hollow portions 22 provided on the side edges substantially orthogonal to the side edges of the recessed portion 23 on which the support portions 21 are provided.

公开(公告)号：US20220301794A1

公开(公告)日：2022-09-22

申请号：US17638564

申请日：2020-08-18

Applicant: DEXERIALS CORPORATION

Inventor： Yuji KIMURA ,  Chisato KOMORI

IPC: H01H37/76 ,  H02J7/00 ,  H01M50/296 ,  H01M50/548

Abstract: Provided is a protecting device that can prevent damage of the device by releasing the pressure inside the housing by providing openings in the housing and can secure appropriate insulation. The protecting device includes: a meltable conductor 3; first and second external connection terminals 7, 8 connected to both ends of the meltable conductor 3; and a housing 6 having a lower case 4 and an upper case 5, wherein one end of the first external connection terminal 7 and one end of the second external connection terminal 8 are led out from the housing 6, and the housing is provided with a first opening 24 formed facing a front surface of the first external connection terminal 7 and a second opening 25 formed facing a front surface of the second external connection terminal 8.