公开(公告)号：US11605482B2

公开(公告)日：2023-03-14

申请号：US17040901

申请日：2019-04-03

Applicant: TDK Electronics AG

Inventor： Wen Yang ,  Xiaojia Tian ,  Rongguang Zhang ,  Zilong Su ,  Zhouquan He

IPC: H01C7/12 ,  H01C1/022 ,  H01C1/144 ,  H01H37/76

Abstract: In an embodiment a thermal varistor protection device includes a casing, a varistor embedded in the casing, wherein the varistor includes a first metallization electrode, which is only partly covered by an insulating material of the casing to allow an electrically conductive connection, a first terminal wire electrically conductively connected to the first metallization electrode of the varistor and a contact element electrically conductively connected to the first metallization electrode of the varistor in a region where the varistor is not covered by the insulating material, wherein the contact element is pre-stressed to ensure a fast separation of the contact element and the first metallization electrode when the electrically conductive connection between the contact element and the first metallization electrode becomes loose.

公开(公告)号：US20210012933A1

公开(公告)日：2021-01-14

申请号：US17040901

申请日：2019-04-03

Applicant: TDK Electronics AG

Inventor： Wen Yang ,  Xiaojia Tian ,  Rongguang Zhang ,  Zilong Su ,  Zhouquan He

IPC: H01C7/12 ,  H01C1/144 ,  H01C1/022 ,  H01H37/76

Abstract: In an embodiment a thermal varistor protection device includes a casing, a varistor embedded in the casing, wherein the varistor includes a first metallization electrode, which is only partly covered by an insulating material of the casing to allow an electrically conductive connection, a first terminal wire electrically conductively connected to the first metallization electrode of the varistor and a contact element electrically conductively connected to the first metallization electrode of the varistor in a region where the varistor is not covered by the insulating material, wherein the contact element is pre-stressed to ensure a fast separation of the contact element and the first metallization electrode when the electrically conductive connection between the contact element and the first metallization electrode becomes loose.