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公开(公告)号：US20180198260A1
公开(公告)日：2018-07-12
申请号：US15743257
申请日：2016-08-17
申请人： EPCOS AG
发明人： Peter Bobert , Eduard Dorsch , Frank Werner
摘要： A multiple spark-gap arrester is disclosed. In an embodiment the arrester includes a series connection of a plurality of spark gaps between a first potential node and a reference-ground potential node and a trigger circuit having an input and an output, the input being coupled to a second potential node between two adjacent spark gaps of the plurality of spark gaps, and the output being coupled to at least one of the spark gaps between the second potential node and the reference-ground potential node, wherein the trigger circuit is configured, when at least one spark gap between the first potential node and the second potential node is ignited, to supply a trigger signal for the at least one of the spark gaps between the second potential node and the reference-ground potential node.
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公开(公告)号：US09906016B2
公开(公告)日：2018-02-27
申请号：US14440555
申请日：2013-11-08
发明人： Rainer Durth , Mario Stolzenberg
摘要： The object of the invention is an ignition circuit for a series connection of at least two spark gaps for limiting overvoltages with medium and high power, particularly overvoltages corresponding to pulse shapes 8/20 μs and 10/350 μs with amplitudes of about 10 kA to about 200 kA (class I arrester). The spark gaps are each equipped with at least one auxiliary electrode. The ignition circuit has a first varistor and a second varistor, with the ignition circuit being particularly suited to limiting overvoltages with medium power, particularly overvoltages corresponding to pulse shape 8/20 μs with amplitudes of about 10 to about 100 kA (class II arrester). The ignition circuit is designed to be connected to the auxiliary electrodes, with the ignition circuit Z having two ignition subcircuits. The first ignition subcircuit TZ1 has the first varistor VAR1 and is designed to ignite the first spark gap. The second ignition subcircuit has the second varistor and is designed to ignite the second spark gap. Further objects of the invention are an overvoltage protection device with this kind of ignition circuit, as well as the use of a multi-contact varistor for triggering a spark gap.
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公开(公告)号：US09837795B2
公开(公告)日：2017-12-05
申请号：US14723852
申请日：2015-05-28
发明人： Yoshihito Otsubo , Jun Adachi
摘要： An ESD protection device of the present disclosure includes a ceramic multilayer structure inside which a cavity portion is formed, at least one pair of discharge electrodes arranged inside the ceramic multilayer structure, and outer electrodes formed on the surface of the ceramic multilayer structure and connected to the discharge electrodes, wherein the pair of discharge electrodes are arranged in such a way that one end-face of one discharge electrode and one end-face of the other discharge electrode are opposed to each other through the cavity portion, and the cavity portion is formed as a single cavity occupying a region between the opposed end-faces, regions along other end-faces connected to the opposed end-faces via corner portions, and, on first principal surfaces, regions along the opposed end-faces and regions along the other end-faces.
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4.发明授权公开(公告)号：US09780553B2
公开(公告)日：2017-10-03
申请号：US14772265
申请日：2014-02-13
发明人： Jens Ehrler , Arnd Ehrhardt , Klaus Buehler
摘要： The invention relates to an overvoltage protection device with a short-circuit function for protecting installations and persons for low-voltage installations, wherein at least one overvoltage protection element and a thermally activatable short-circuit device are arranged in a common housing. The device is designed to be inserted into an NH fuse part, and the common housing is designed with contact blades so as to be spatially analogous to a NH fuse link.
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公开(公告)号：US09748764B2
公开(公告)日：2017-08-29
申请号：US14590553
申请日：2015-01-06
申请人： Hubbell Incorporated
发明人： Michael W. Bandel
摘要： A surge protector having a hot line, a load line, a neutral line, and a ground line, the surge protector is provided. The surge protector has a fuse coupled between the hot line and the load line to protect loads from current surges. A differential mode protection circuit is coupled between the load line and the neutral line to protect loads from differential mode transient voltage surges. A common mode protection circuit is coupled to the load line, the neutral line and the ground line to protect loads from common mode transient voltage surges. An indicator circuit monitors the differential mode protection circuit and the common mode protection circuit to provide an indication as to the operational status of the surge protector.
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公开(公告)号：US20170222433A1
公开(公告)日：2017-08-03
申请号：US15487690
申请日：2017-04-14
申请人： Emprimus, LLC
发明人： GREG FUCHS , GEORGE ANDERSON , WILLIAM M. VOLNA , GALE K. NORDLING , WALLACE JENSEN , DAVID BLAKE JACKSON , FREDERICK R. FAXVOG , JAMES NICHOLAS RUEHL
IPC分类号： H02H9/06
摘要： Electrical protection devices, such as for use with power systems for overvoltage protection, are disclosed. One electrical protection device includes a first electrical connection, a second electrical connection, a first electrical discharge device, and a second electrical discharge device. The first electrical discharge device includes a first conductive bus connected to the first electrical connection and a second conductive bus connected to the second electrical connection. The first electrical discharge device has a first breakdown voltage. The second electrical discharge device includes a third conductive bus connected to the first electrical connection and a fourth conductive bus connected to the second electrical connection. The second electrical discharge device has a second breakdown voltage.
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公开(公告)号：US09660441B2
公开(公告)日：2017-05-23
申请号：US14185458
申请日：2014-02-20
申请人： Emprimus, LLC
发明人： Greg Fuchs , George Anderson , William M. Volna , Gale K. Nordling , Wallace Jensen , David Blake Jackson , Frederick R. Faxvog , James Nicholas Ruehl
摘要： Electrical protection devices, such as for use with power systems for overvoltage protection, are disclosed. One electrical protection device includes a first electrical connection, a second electrical connection, a first electrical discharge device, and a second electrical discharge device. The first electrical discharge device includes a first conductive bus connected to the first electrical connection and a second conductive bus connected to the second electrical connection. The first electrical discharge device has a first breakdown voltage. The second electrical discharge device includes a third conductive bus connected to the first electrical connection and a fourth conductive bus connected to the second electrical connection. The second electrical discharge device has a second breakdown voltage.
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公开(公告)号：US09627859B2
公开(公告)日：2017-04-18
申请号：US14381559
申请日：2013-02-26
申请人： EPCOS AG
发明人： Peter Bobert
摘要： A spark gap arrangement comprises a triggerable spark gap (TF) and a trigger circuit (TRG), which comprises a first and a second charge store (C1, C2), a first resistor (R1), a triggerable dissipation element (SF, SF3, TD, TH) and a transformer (T1). The trigger circuit is set up to intermediately store the energy of an input pulse supplied to the input side of the trigger circuit (TRG), wherein storage takes place at least by means of the first charge store (C1). A part of the stored energy is transferred to the second charge store (C2) via the first resistor (R1). The triggerable dissipation element (SF, TD, TH) is set up to turn on on the basis of a voltage across the second charge store (C2) and to discharge the first charge store (C1) via a primary side (T11) of the transformer (T1). In this case, a secondary side (T12) of the transformer (T1) is connected to a main electrode (HE) of the triggerable spark gap (TF) and to a trigger electrode (TE) of the triggerable spark gap (TF).
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公开(公告)号：US09627855B2
公开(公告)日：2017-04-18
申请号：US14909860
申请日：2014-08-27
申请人： EPCOS AG
发明人： Frank Werner , Robert Hoffmann
摘要： A surge arrester includes a gas-tight discharge chamber that is formed by at least one insulating body and two electrodes. The electrodes extend into the discharge chamber and include an electrode spacing with respect to one another and a wall spacing with respect to the insulating body inner wall. The electrode spacing is equal to twice the wall spacing or is less than twice the wall spacing.
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公开(公告)号：US09614370B2
公开(公告)日：2017-04-04
申请号：US14391694
申请日：2013-03-26
申请人： EPCOS AG
发明人： Wolfgang Daeumer , Frank Werner , Eberhard Soelter
摘要： A surge arrester comprises an electrical insulator (10), which surrounds a cavity (20), a pin electrode (30) and a tube electrode (40), which are arranged in the cavity (20), wherein the pin electrode (30) projects into the tube electrode (40). An ignition strip (50) is applied on an inner surface (S10a) of the insulator facing the cavity (20). An outer metallization (61, 62, 63) is arranged on an outer surface (S10b) of the insulator (10). As a result, an effective reduction of the protection level can be achieved in the case of the surge arrester.
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