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131. 发明授权

US2098062A Carbon brush 失效
公开(公告)号：US2098062A
公开(公告)日：1937-11-02
申请号：US1837435
申请日：1935-04-26
申请人： GEN ELECTRIC
发明人： ROBERT PALMER
IPC分类号： H01R39/20 , H01R39/36
CPC分类号： H01R39/20 , H01R39/36 , Y10T428/30

132. 发明授权

US2066176A Commutating brush 失效
公开(公告)号：US2066176A
公开(公告)日：1936-12-29
申请号：US4243135
申请日：1935-09-27
申请人： GEN ELECTRIC
发明人： FRED GIRVIN , HARDMAN WILLIAM H
IPC分类号： H01R39/20 , H01R39/22
CPC分类号： H01R39/20 , H01R39/22 , Y10T428/30

133. 发明授权

US1774381A Electrically conductive article 失效
标题翻译：导电制品
公开(公告)号：US1774381A
公开(公告)日：1930-08-26
申请号：US17940527
申请日：1927-03-29
申请人： NAT CARBON CO INC
发明人： KIEFER EDWIN F
IPC分类号： H01R39/20
CPC分类号： H01R39/20

134. 发明公开

US20240255101A1 DETECTION SYSTEMS FOR POWER TOOLS WITH ACTIVE INJURY MITIGATION TECHNOLOGY 审中-公开
公开(公告)号：US20240255101A1
公开(公告)日：2024-08-01
申请号：US18613586
申请日：2024-03-22
申请人： SawStop Holding LLC
发明人： Stephen F. Gass , John P. Nenadic , Louis R. Slamka
IPC分类号： F16P3/14 , B23D47/12 , B26D7/22 , B27G19/00 , B32B9/00 , H01R39/20 , H01R39/64
CPC分类号： F16P3/148 , B26D7/22 , B32B9/00 , H01R39/64 , B23D47/12 , B27G19/00 , H01R39/20
摘要： Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise.

135. 发明授权

US11437896B2 Slip ring assembly 有权
公开(公告)号：US11437896B2
公开(公告)日：2022-09-06
申请号：US16764734
申请日：2019-12-13
申请人： Saint-Augustin Canada Electric Inc.
发明人： Sebastien Arcand , Michaël Gagnon , Sophie Garneau
IPC分类号： H02K13/00 , F03D80/80 , H01R39/02 , H01R39/10 , H01R39/14 , H01R39/20 , H01R39/26 , H02K7/18
摘要： A slip ring assembly including a plurality conducting disks spaced-apart and stacked mounted along a common rotation axis, each being electrically connectable and fixedly securable to a generator mounted in a rotatable nacelle of a wind turbine so that a rotation of the rotatable nacelle triggers a rotation of the conducting discs; and a plurality of slip ring devices, each being electrically connectable and mechanically securable to a fixed electrical distribution conductor mounted to a fixed pole so as to have a fixed position relative to the fixed pole, and each of the plurality of the slip ring devices having upper and conducting fingers arranged so as to rotatably receive a respective conducting disk therebetween and to provide an electrical connection between the conducting disks and the slip ring device during rotation of the nacelle.

136. 发明授权

US11378064B2 Brush arrangement 有权
公开(公告)号：US11378064B2
公开(公告)日：2022-07-05
申请号：US16479059
申请日：2017-11-09
申请人： Siemens Gamesa Renewable Energy A/S
发明人： Soeren Kammer Soerensen
IPC分类号： F03D80/30 , H02K11/40 , H01R39/38 , H01R39/64 , H01R43/14 , H02K7/18 , H02K5/14 , H01R39/20 , H01R39/26
摘要： Provided is a brush arrangement of a wind turbine lightning protection system, realized to provide a current path from a hub to a canopy of the wind turbine, which brush arrangement includes a brush holder arranged to hold a brush in electrical contact with a contact surface at the exterior of the canopy, which contact surface is electrically connected to the hub; a bracket arranged to electrically connect the brush with a mounting plate; characterized by an access opening in the front wall of the canopy, which access opening is dimensioned to accommodate the bracket and brush holder; and a mounting arrangement for securing the mounting plate to the canopy front wall over the access opening, from within the canopy interior. A wind turbine including a lightning protection system with at least one such brush arrangement is also provided.

137. 发明授权

US10666004B2 Slipring with reduced contact noise 有权
公开(公告)号：US10666004B2
公开(公告)日：2020-05-26
申请号：US15608492
申请日：2017-05-30
申请人： SCHLEIFRING GMBH
发明人： Christian Holzapfel , Peter Heinbuch , Sascha Christmann , Michael Ritz
IPC分类号： H01R39/20 , H01R39/34 , H02K13/00 , H02K13/02 , B32B15/04
摘要： A method for manufacture of a gold-plated slipring contact, comprising steps of galvanic deposition of a copper layer on the electrically-conductive substrate; of a nickel and/or nickel phosphor layer on the copper layer; and of a gold layer on the nickel and/or nickel phosphor layer. While galvanically applying the copper layer on the substrate, the used galvanic bath explicitly does not include at least one of 3-carboxy-1-(phenylmethyl)pyridinium chloride sodium salt, cationic polymers with urea groups, 1-(3-sulfopropyl)pyridinium betaine, 1-(2-hydroxy-3-sulfopropyl)-pyridinium betaine, propargyl(3-sulfopropyl)ether sodium salt, sodium saccharin, sodium allylsulfonate, N,N-dimethyl-N-(3-cocoamidopropyl)-N-(2-hydroxy-3-sulfopropyl)ammonium betaine, polyamines, 1H-imidazole-polymer with (chloromethyl)oxiran, 3-carboxy-1-(phenylmethyl)pyridinium chloride sodium salt, 1-benzyl-3-sodium carboxy-pyridinium chloride, arsenic trioxide, potassium antimony tartrate, potassium tellurate, alkali arsenite, potassium tellerite, potassium seleno cyanate, alkali antimonyl tartrate, sodium selenite, thallium sulfate, and carbon disulfide, to create the outer surface of the contact that is at least an order of magnitude rougher than a surface of a conventionally-fabricated contact.

138. 发明授权

US10199788B1 Monolithic MAX phase ternary alloys for sliding electrical contacts 有权
公开(公告)号：US10199788B1
公开(公告)日：2019-02-05
申请号：US15153453
申请日：2016-05-12
申请人： National Technology & Engineering Solutions of Sandia, LLC
发明人： Nicolas Argibay , Thomas Scharf
IPC分类号： H01R39/02 , H01R39/08 , H01R39/04 , H01R39/20
摘要： The present invention relates to monolithic structures for use as an electrical contact. In particular, these structures are formed from a laminate alloy, which in turn is composed of a Mn+1AXn compound. Electrical contact assemblies and electrical components having such contacts are also described herein. In some example, such monolithic structures display increased wear resistance, which is useful for sliding electrical contacts.

139. 发明申请

US20180166954A1 ELECTRICAL MACHINE WITH BRUSH AND COMMUTATOR HAVING A SPECIFIC DISTRIBUTION OF ELECTRICAL CONDUCTIVITY FOR SUPPRESSION OF SPARKING 审中-公开
公开(公告)号：US20180166954A1
公开(公告)日：2018-06-14
申请号：US15111079
申请日：2015-06-02
申请人： SCHUNK HOFFMANN CARBON TECHNOLOGY AG , AC2T RESEARCH GMBH
发明人： Laszlo Katona
IPC分类号： H02K13/10 , H01R39/26 , H01R39/04 , H01R39/20
CPC分类号： H02K13/105 , F02M37/08 , H01R39/04 , H01R39/045 , H01R39/20 , H01R39/26
摘要： An electrical machine with a brush commutator arrangement (1) is proposed. Brushes (3) and a commutator (5) are adapted and arranged such that, upon operating the electrical machine (1), the brush (3) and the commutator (5) are displaced relative to each other in a lateral displacement direction (7) and a contact surface (9) of the brush (3) mechanically contacts a contact surface (11) of the commutator (5) along an overlapping area (13) thereby generating an electrical contact. Accordingly, an electric current is transmitted between brush (3) and commutator (5) through the overlapping area (13). An orthogonal electrical conductivity of the brush (3) and/or the commutator (5) in a direction (25) orthogonal to a respective contact surface (9, 11) locally varies along the lateral displacement direction (7). An orthogonal electrical conductivity distribution in the brush (3) and/or the commutator (5) is adapted such that, even when operating the electrical machine at maximum allowable power, for at least 90% of all spatial configurations during displacing the brush (3) and the commutator (5) relative to each other, an electrical current density through the overlapping area (13) does not exceed 130% of a rated maximal average electrical current density through the brush commutator arrangement (1). Due to the specific variation of orthogonal electrical conductivity within the brush (3) or commutator (5), sparking and resulting wear in the proposed brush commutator arrangement (1) may be reduced.

140. 发明申请

US20170324204A1 SPLIT BRUSH WITH METAL CLIP 审中-公开
公开(公告)号：US20170324204A1
公开(公告)日：2017-11-09
申请号：US15524152
申请日：2014-11-04
申请人： MERSEN FRANCE AMIENS SAS
发明人： Pascal LARTIQUE , Laurent LOCHET
IPC分类号： H01R39/26 , H01R39/20
摘要： A brush device includes: a first and a second flange disposed side by side, each flange extending radially between a rubbing face intended to rub against a moveable element and a flange head intended to be connected electrically to another moveable element, a first plate rigidly fixed to the first flange only and extending tangentially above the head of the second flange, in such a way as to transmit, when this first plate is loaded by pressure unit, pressure forces on the second flange, a second plate, distinct from the first plate, rigidly fixed to the second flange only and extending tangentially above the head of the first flange in such a way as to bear on the first flange in the event of relative motion of the second flange with respect to the first flange towards the first moveable element.

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