公开(公告)号：US12131849B2

公开(公告)日：2024-10-29

申请号：US17801856

申请日：2020-05-11

Applicant: Dongguan Littelfuse Electronics Company Limited

Inventor： Long Min ,  Libing Lu ,  Dongjian Song

IPC: H01C7/12

CPC classification number: H01C7/126

Abstract: 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：US11996218B2

公开(公告)日：2024-05-28

申请号：US17551443

申请日：2021-12-15

Applicant: Tridelta Meidensha GMBH

Inventor： Thomas Paalhorn ,  Philipp Raschke ,  Stephan Hilmer

IPC: H01C7/12

CPC classification number: H01C7/126

Abstract: The invention relates to a surge arrester comprising two opposing end fittings 3, one or more varistors 5 arranged between the end fittings 3, a winding layer 9 provided at least on the at least one varistor 5, wherein the winding layer 9 is a closed layer 9, and a reinforcement element 7 which extends between the end fittings 3 and keeps the end fittings 3 under tension, wherein the reinforcement element 7 is an open cross winding 13. Moreover, the invention relates to a method for producing this surge arrester.

公开(公告)号：US20230326632A1

公开(公告)日：2023-10-12

申请号：US18022238

申请日：2020-08-25

Applicant: Hitachi Energy Switzerland AG

Inventor： James TAYLOR

IPC: H01C1/026 ,  H01C7/12

CPC classification number: H01C1/026 ,  H01C7/126

Abstract: A gas insulated surge arrester is disclosed, including a metal clad housing within which a block stack is arranged. The block stack includes at least one metal-oxide resistor column and the gas insulated surge arrester is characterized by a capacitive element arranged to obtain an electric field measurement of the gas insulated surge arrester; and by a bushing arranged through the metal clad housing and arranged to the provide a capacitive third-order harmonic current measurement to an input of a surge arrester monitoring device. A monitoring system is also provided, including a gas insulated surge arrester connected to a surge arrester monitoring device.

公开(公告)号：US20180374666A1

公开(公告)日：2018-12-27

申请号：US15634420

申请日：2017-06-27

Applicant: SHANGHAI CHENZHU INSTRUMENT CO., LTD. ,  DINKLE ENTERPRISE CO., LTD. ,  DINKLE ELECTRIC MACHINERY (CHINA) CO., LTD.

Inventor： Chunpo ZHAI ,  Keqi CHEN ,  SHANG-TSAI WU

IPC: H01H71/14 ,  H01H71/02 ,  H01H71/04 ,  H01H71/10 ,  H01H15/02

CPC classification number: H01H71/14 ,  H01C7/12 ,  H01C7/126 ,  H01H15/02 ,  H01H37/08 ,  H01H37/76 ,  H01H71/0207 ,  H01H71/025 ,  H01H71/04 ,  H01H71/1009 ,  H01H2037/762 ,  H01H2071/008 ,  H01H2207/02 ,  H01H2207/036 ,  H01H2235/01

Abstract: A release mechanism for surge protectors includes a first electrical connection pin (6) soldered with a varistor's second electrode (5B), a function rotating member (3) sheathed on a fixed column (2B and installed between a varistor (5) and a bridge bracket (8), an elastic driving device (4) fixed into an internal box body (2), and a bridge bracket (8) fixed to a second electrical connection pin (7) in the internal box body (2). If the varistor (5) is not released, then the bridge bracket (8) will be passed through a soldering window (3C) and soldered with a varistor's first electrode (5A), or else the elastic driving device (4) will drive the function rotating member (3) to rotate around the fixed column (2B). An arc shield plate (3F) exposed from a failure status indicating area (2N) for triggering a remote linkage rod (9) shields the bridge bracket (8) and electrode (5A).

公开(公告)号：US20180247874A1

公开(公告)日：2018-08-30

申请号：US15723528

申请日：2017-10-03

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics (Rousset) SAS

Inventor： Benoît Froment ,  Stephan Niel ,  Arnaud Regnier ,  Abderrezak Marzaki

IPC: H01L21/8234 ,  H01L21/762 ,  H01C7/12 ,  H01L27/08 ,  H01L49/02 ,  H01L21/74

CPC classification number: H01L21/823493 ,  H01C7/126 ,  H01L21/743 ,  H01L21/76224 ,  H01L21/76264 ,  H01L21/76283 ,  H01L21/76286 ,  H01L21/765 ,  H01L27/0802 ,  H01L28/20 ,  H01L29/0649 ,  H01L29/0692 ,  H01L29/8605

Abstract: An integrated circuit includes a semiconductor substrate with an electrically isolated semiconductor well. An upper trench isolation extends from a front face of the semiconductor well to a depth located a distance from the bottom of the well. Two additional isolating zones are electrically insulated from the semiconductor well and extending inside the semiconductor well in a first direction and vertically from the front face to the bottom of the semiconductor well. At least one hemmed resistive region is bounded by the two additional isolating zones, the upper trench isolation and the bottom of the semiconductor well. Electrical contacts are electrically coupled to the hemmed resistive region.

公开(公告)号：US20180151318A1

公开(公告)日：2018-05-31

申请号：US15365453

申请日：2016-11-30

Applicant: Iskra Zascite d.o.o.

Inventor： Sebastjan Kamensek ,  Tadej Knez ,  Igor Juricev ,  Milenko Vukotic ,  Thomas Tsovilis ,  Zafiris G. Politis

IPC: H01H37/74 ,  H01H79/00 ,  H01R25/14 ,  H01H37/08 ,  H01H37/04 ,  H01H37/46

CPC classification number: H01H37/74 ,  H01C1/01 ,  H01C7/126 ,  H01H37/04 ,  H01H37/08 ,  H01H37/46 ,  H01H79/00 ,  H01H85/44 ,  H01H2037/762 ,  H01R9/2641 ,  H01R25/14 ,  H01T4/02 ,  H01T4/06 ,  H01T4/08

Abstract: A surge protective device (SPD) module includes a module housing, first and second module electrical terminals mounted on the module housing, a gas discharge tube (GDT) mounted in the module housing, and a fail-safe mechanism mounted in the module housing. The GDT includes a first GDT terminal electrically connected to the first module electrical terminal and a second GDT terminal electrically connected to the second module electrical terminal. The fail-safe mechanism includes: an electrically conductive shorting bar positioned in a ready position and repositionable to a shorting position; a biasing member applying a biasing load to the shorting bar to direct the shorting bar from the ready position to the shorting position; and a meltable member. The meltable member maintains the shorting bar in the ready position and melts in response to a prescribed temperature to permit the shorting bar to transition from the ready position to the shorting position under the biasing load of the biasing member. In the shorting position, the shorting bar forms an electrical short circuit between the first and second GDT terminals to bypass the GDT.

公开(公告)号：US09941669B2

公开(公告)日：2018-04-10

申请号：US14814427

申请日：2015-07-30

Applicant: ABB FRANCE

Inventor： Boris Gautier ,  Stephane Brescon

IPC: H02G13/00 ,  H01C7/12 ,  H01T4/02 ,  H01T4/06 ,  H01C1/01 ,  H01C1/014 ,  H01R12/70 ,  H01R9/26

CPC classification number: H01T4/02 ,  H01C1/01 ,  H01C1/014 ,  H01C7/126 ,  H01R9/2641 ,  H01R12/7076 ,  H01T4/06

Abstract: A protection device cartridge of an electrical installation intended to be brought on a base including an active protection component having a first terminal and a second terminal; a first connector forming a first electrical circuit portion electrically connected to the first terminal and to a first bearing portion of the base and a second connector forming a second electrical circuit portion electrically connected to the second terminal and to a second bearing portion of the base, the first connector and the second connector being arranged to allow the connection of the cartridge on the base according to an insertion direction, the first bearing portion and the second portion presenting a spacing determined according to the direction transverse to the insertion direction, where the second bearing portion is disposed between a first end point of the first electric circuit portion and the first bearing portion according to the direction transverse to the insertion direction and where the first bearing portion is disposed between the second bearing portion and a second end point of the second electrical circuit portion according to the direction transverse to the insertion direction, the first end point and the second end point presenting a determined spacing, greater than the spacing between the first bearing portion and the second bearing portion.

公开(公告)号：US20170338013A1

公开(公告)日：2017-11-23

申请号：US15670608

申请日：2017-08-07

Applicant: POWERTECH INDUSTRIAL CO., LTD.

Inventor： JUNG-HUI HSU

IPC: H01C1/144 ,  H01C7/12 ,  H01C7/102

CPC classification number: H01C1/144 ,  H01C7/102 ,  H01C7/126

Abstract: A varistor device includes a main body, a conductive area, a specific-melting-point metallic pin, and an elastic unit. The main body has a first surface, and the conductive area is located at the first surface. The specific-melting-point metallic pin has a first section and a second section. The first and the second sections are one-piece formed. The first section is fixedly disposed on the conductive area. The second section has a specific melting point such that the second section melts when a current flows between the first surface and the second section so as to expose the second section to a temperature greater than the specific melting point. The elastic unit has an end connected to the second section, and the elastic unit provides an elastic force to the second section to break the second section so as to cut off the current when the second section melts.

公开(公告)号：US09755420B2

公开(公告)日：2017-09-05

申请号：US14728112

申请日：2015-06-02

Applicant: Timothy Stephen Smith

Inventor： Timothy Stephen Smith

IPC: H02H3/22 ,  H01C7/12 ,  H01H33/00

CPC classification number: H02H3/22 ,  H01C7/126 ,  H01H33/00

Abstract: An electrical transmission system is described herein. The electrical transmission system can include at least one first phase high-voltage conductor. The electrical transmission system can also include an arrester coupled to the at least one first phase high-voltage conductor, where the arrester includes an arrester body and an isolator, where the arrester body includes a top end and a bottom end, where the top end of the arrester is coupled to the at least one first phase high-voltage conductor, and where the bottom end of the arrester body is coupled to the isolator. The electrical transmission system can further include a ground conductor coupled to a bottom end of the isolator of the arrester. The electrical transmission system can also include a tether coupled to the ground conductor, where the tether comprises a distal end, where the distal end of the tether is coupled to the arrester above the isolator.

公开(公告)号：US20170186575A1

公开(公告)日：2017-06-29

申请号：US15308779

申请日：2015-05-29

Applicant: DEHN + SÖHNE GMBH + CO. KG

Inventor： Uwe STRANGFELD ,  Stephan HIERL

IPC: H01H37/76 ,  H01H37/32 ,  H01H37/60 ,  H01H37/08

CPC classification number: H01H37/76 ,  H01C7/126 ,  H01H37/08 ,  H01H37/32 ,  H01H37/60 ,  H01H2037/768 ,  H01T1/14

Abstract: The invention relates to a device for thermally disconnecting or tripping an overvoltage protection device, comprising: a locking element (A1), on which a first force (F1) acts, and which is fixed in such a way that same is released when a limit temperature is exceeded; and a slider (S1) which is blocked in a first state (Z1) by the fixed locking element (A1), and on which a second force (F2) acts in order to transfer same into a second state (Z2) when the locking element (A1) is released.