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公开(公告)号：US10215778B2
公开(公告)日：2019-02-26
申请号：US15106591
申请日：2014-12-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Sebastian Eggert , Michael Petry , Werner Roehling , Friedrich A. Busemann , Bernd Schubert , Gerhard Lohmeier , Michael H. Stalder , Jens Weichold , Rainer Reeken , Andreea Sabo , Christian Weinmann , Dipankar Ghosh , Myungchan Kang , Christopher D. Sebesta
Abstract: Voltage sensor (1) for a high- or medium-voltage power-carrying conductor for a power network, such as an inner conductor of a power cable or a cable connector or a bus bar. The voltage sensor has a tubular shape and an axial passageway (40), which can receive the conductor. The voltage sensing device comprises a) a radially-inner electrode (20), operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power-carrying conductor, b) a radially-outer electrode (30), operable as a second sensing electrode of the sensing capacitor, and c) a solid carrier element (10), at least a first portion of which is arranged between the inner electrode and the outer electrode, the first portion being operable as a dielectric of the sensing capacitor. The sensor can be accommodated in a cable accessory. The carrier element may comprise ceramic material to increase accuracy.
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公开(公告)号：US09640904B2
公开(公告)日：2017-05-02
申请号：US14366964
申请日：2012-12-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Christian Weinmann , Holger J. Kurzhals , Michael H. Stalder , Sebastian Eggert , Jens Weichold
IPC: G01R15/16 , H01R13/58 , H02G15/184 , G01R15/14 , G01R15/06 , G01R19/00 , H01B9/00 , H01R13/66 , H01R43/26 , H02G15/064 , G01R15/18
CPC classification number: H01R13/5845 , G01R15/06 , G01R15/142 , G01R15/16 , G01R15/181 , G01R19/0084 , H01B9/006 , H01R13/6683 , H01R43/26 , H02G15/064 , H02G15/184 , Y10T29/49208
Abstract: Sensored cable (1) for distribution of electrical power in a power network, the sensored cable comprising an inner conductor and an insulating layer (10) arranged concentrically around at least an axial section of the inner conductor. The sensored cable further comprises a capacitive voltage sensor (100) for sensing a voltage of the inner conductor, characterized by the sensor including a printed circuit board element (60), which is placed over an electrically isolated piece (140) of conductive or semiconductive material, arranged on the insulating layer of the cable. The electrically isolated piece (140) of conductive or semiconductive material is operable to form an electrode of a sensing capacitor of the capacitive voltage sensor. The cable may comprise a (semi-) conductive layer (20). The electrically isolated piece (40) of conductive or semiconductive material may comprise a portion of the (semi-) conductive layer.
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公开(公告)号：US20160341768A1
公开(公告)日：2016-11-24
申请号：US15106648
申请日：2014-12-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Friedrich A. Busemann , Bernd Schubert , Gerhard Lohmeier , Andreea Sabo , Rainer Reeken , Michael H. Stalder , Christian Weinmann , Sebastian Eggert , Dipankar Ghosh , Myungchan Kang , Christopher D. Sebesta
CPC classification number: G01R15/16 , G01R19/0084
Abstract: The invention relates to a voltage sensing device for a high and/or medium-voltage power-carrying conductor, the voltages sensing device comprising: • a carrier element (3) with a passageway for receiving the power-carrying conductor, • wherein the carrier element comprises an electrode (4) extending in an axial direction of the passageway of the carrier element and operable as a first electrode of the voltage sensing device, wherein • a conductor (1) of the power cable is operable as the second electrode of the voltage sensing device and wherein • the carrier element has a coefficient of thermal expansion that is less than 5x10̂−6 1/K at 20 C.
Abstract translation: 本发明涉及一种用于高和/或中压供电导体的电压感测装置，所述电压感测装置包括：•载体元件（3），其具有用于接收所述功率承载导体的通道，其中所述载体 元件包括沿着载体元件的通道的轴向延伸并可用作电压感测装置的第一电极的电极（4），其中电力电缆的导体（1）可操作为第二电极 电压感测装置，其中载体元件的热膨胀系数在20℃时小于5×10 -6 / K。
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公开(公告)号：US09429594B2
公开(公告)日：2016-08-30
申请号：US14368030
申请日：2012-12-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Giuliano Bolcato , Jens Weichold , Pasquale J. Zanoli , Mark Gravermann , Michael H. Stalder , Holger Kurzhals , Sebastian Eggert , Christian Weinmann
IPC: H02G15/00 , G01R15/16 , H02G15/184 , G01R15/14 , G01R15/06 , G01R19/00 , H01B9/00 , H01R13/58 , H01R13/66 , H01R43/26 , G01R15/18
CPC classification number: H01R13/5845 , G01R15/06 , G01R15/142 , G01R15/16 , G01R15/181 , G01R19/0084 , H01B9/006 , H01R13/6683 , H01R43/26 , H02G15/064 , H02G15/184 , Y10T29/49208
Abstract: Terminal connection device for connecting an end of a medium- or high-voltage power cable to a connection point, comprising an interface cable, an inner conductor and a conductive or semiconductive layer. The terminal connection device further comprises a first stress control tube comprising a stress control element and an insulation layer arranged around the stress control element. The terminal connection device further comprises a first cable connector for connecting the interface cable to the power cable. The terminal connection device further comprises a second stress control tube comprising a stress control element and an insulating layer arranged around the stress control element, wherein the second stress control tube is mounted over the second end portion of the interface cable and at least a portion of the first cable connector. The terminal connection device further comprises one or more tubular shrinkable sleeves.
Abstract translation: 用于将中压或高压电力电缆的一端连接到连接点的端子连接装置，包括接口电缆，内部导体和导电或半导体层。 端子连接装置还包括第一应力控制管，其包括应力控制元件和布置在应力控制元件周围的绝缘层。 终端连接装置还包括用于将接口电缆连接到电力电缆的第一电缆连接器。 端子连接装置还包括第二应力控制管，其包括应力控制元件和围绕应力控制元件布置的绝缘层，其中第二应力控制管安装在接口电缆的第二端部上方，并且至少一部分 第一个电缆连接器。 终端连接装置还包括一个或多个管状可收缩套管。
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公开(公告)号：US20240235049A9
公开(公告)日：2024-07-11
申请号：US18278391
申请日：2022-01-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jens Eichler , Christian Weinmann , Tom Gaide , Michael H. Stalder , Sebastian Eggert-Richter
CPC classification number: H01Q15/02 , B29C64/393 , B33Y10/00 , B33Y50/02 , B33Y80/00 , H01Q15/0013 , H01Q15/0086 , B29C64/124
Abstract: The present disclosure provides methods, articles, and apparatuses related to altering electromagnetic radiation. A method of making articles includes a) forming an electromagnetic radiation altering material by providing a polymer matrix and optionally embedding dielectric particles in the polymer matrix and b) obtaining initial dielectric properties of the electromagnetic radiation altering material. The method further includes c) modeling electromagnetic radiation altering features of the material suitable for the article obtained from the material to have target electromagnetic radiation altering properties, thereby obtaining a simulation of the electromagnetic radiation altering article; and d) additive manufacturing the electromagnetic radiation altering article based on the simulation of the electromagnetic radiation altering article. An electromagnetic radiation altering article obtained by the method is also provided. Further, an apparatus is provided including the electromagnetic radiation altering article. Methods of altering electromagnetic radiation are provided, including integrating an electromagnetic radiation altering article into either an electronic device or an electromagnetic radiation producing device, or placing the article in the vicinity of the device. Aspects of the present disclosure advantageously contribute to achieving optimized materials and designs for electromagnetic radiation altering articles.
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Patent Agency Ranking
16.发明公开公开(公告)号：US20230410808A1
公开(公告)日：2023-12-21
申请号：US18252370
申请日：2021-11-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Holger J. Kurzhals , Michael H. Stalder , Patrick R.T. Hjort , Magnus S. Johansson
IPC: G10L15/22 , G06F3/01 , A61F9/06 , A61F11/12 , A61F11/14 , G09B5/04 , G02C7/10 , A62B18/08 , A42B1/0188 , A42B1/0181
CPC classification number: G10L15/22 , G06F3/016 , A61F9/067 , A61F11/12 , A61F11/145 , G09B5/04 , G02C7/104 , A62B18/08 , A42B1/0188 , A42B1/0181 , G10L2015/225 , G10L2015/223
Abstract: The present disclosure relates to a personal protective device 100, 100′, 300, 400, 500 with local voice recognition comprising a voice receiving unit 20, 20′, a voice processing unit 30, 30′, a command processing unit 40, 40′ and a control unit 42, 42′. The present disclosure further relates to a method of processing a voice signal 202, 202′ in a personal protective device 100, 100′, 300, 400, 500 with local voice recognition comprising the steps of recognizing a voice signal 202, 202′ by a microphone 10, 10′, transmitting the voice signal 202, 202′ to the voice processing unit 30, 30′, optionally of an external device 31′, processing the received voice signal 202, 202′ with the voice processing unit 30, 30′ to generate a voice command based on the received voice signal 202, 202′, processing the voice command generated from the voice signal 202, 202′ and matching it with the command information stored within the voice processing unit 30, 30′ to generate a voice command information block, transmitting the voice command information block to the command processing unit 40, 40′, processing the voice command information block and matching it with the control information stored within the command processing unit 40, 40′ to generate a control command and transmitting the control command to the control unit 42, 42′.
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公开(公告)号：US20230384350A1
公开(公告)日：2023-11-30
申请号：US18321241
申请日：2023-05-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mark Gravermann , Gunther A. J. Stollwerck , Jens Weichold , Christine B. Bund , Mirco Gunjaca , Rainer Reeken , Martin A. Milek , Sebastian Eggert-Richter , Joerg Hahn , Michael H. Stalder , Christian Weinmann , Holger J. Kurzhals , Christopher R. Wilson
CPC classification number: G01R15/06 , G01R19/0084
Abstract: A voltage sensor for sensing an AC voltage of a HV/MV power conductor comprises a capacitive voltage divider for sensing the AC voltage having one or more high-voltage capacitors electrically connected in series with each other and a low-voltage portion comprising one or more low-voltage capacitors electrically connected with each other between the high-voltage portion and electrical ground. The voltage divider also comprises a signal contact, electrically arranged between the high-voltage portion and the low-voltage portion, for providing a signal voltage indicative of the AC voltage. The low-voltage portion further comprises a plurality of electrically actuated adjustable impedance elements configured to adjust the common overall impedance of the low-voltage portion towards a desired impedance. Each electrically actuated adjustable impedance element comprises one or more associated adjustment capacitors and at least one electrically actuatable element, wherein each electrically actuatable element is associated with and electrically connected to one or more of the adjustment capacitors and wherein each electrically actuatable element is configured to achieve one of a connected state and a disconnected state. In the connected state, an associated adjustment capacitor is electrically connected in parallel to at least one of the one or more low-voltage capacitors. In the disconnected state, the associated adjustment capacitor is electrically disconnected from the low-voltage capacitor(s).
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公开(公告)号：US20220360884A1
公开(公告)日：2022-11-10
申请号：US17621438
申请日：2020-06-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Sebastian Eggert-Richter , Michael H. Stalder , Christian Weinmann , Benhard C. Schneider , Paul H.R. Jolly
Abstract: A hearing protection device is provided. The hearing protection device includes a first earmuff connected to a second earmuff by a headband. Each of the first and second earmuffs are configured to dampen ambient sound. The hearing protection device also includes an antenna, located within a housing of the first earmuff. The antenna comprises a rigid portion coupled to a flexible portion. Both the rigid portion and the flexible portion are fixed within the housing. The flexible portion is configured to remain substantially in line with a ground plane with respect to the rigid portion.
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公开(公告)号：US20220317158A1
公开(公告)日：2022-10-06
申请号：US17753328
申请日：2020-09-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gunther A. J. Stollwerck , Mark Gravermann , Bernd Schubert , Christine B. Bund , Mirco Gunjaca , Jens Weichold , Johannes Fink , Michael H. Stalder , Sebastian Eggert-Richter , Harald Westkamp , Willy A. Ahlmann , Guenter M. Zilligen
Abstract: Voltage sensor (1) comprising a voltage divider (40) for sensing an AC voltage of a HV/MV power conductor (10). For adjusting the common overall impedance of the low-voltage portion of the voltage divider towards a desired impedance, the low-voltage portion (60) comprises one or more low-voltage impedance elements (110), a plurality of adjustment impedance elements (80) and a plurality of switches. In its connect state, each switch electrically connects an adjustment impedance element in parallel to at least one of the one or more low-voltage impedance elements (110). The overall impedance of the high-voltage portion (50) and the overall impedance of the low-voltage portion (60) of the voltage divider (40) are adapted such that, by bringing one or more of the switches (90) into their connect state, the voltage divider (40) has, for an AC voltage of between 5 and 25 kV phase-to-ground and a frequency of between 40 and 70 Hertz, a dividing ratio of 3077, of 6154, of 6769 or of 10 000.
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公开(公告)号：US20210199697A1
公开(公告)日：2021-07-01
申请号：US17250090
申请日：2019-06-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael H. Stalder , Hermanus Franciscus Maria van Meijl , Joerg Hahn , Lars Schrix
Abstract: Impedance assembly (120) for use in a voltage divider for sensing an AC elevated voltage of at least 1 kV of a power-carrying conductor (10) distributing electrical energy in a national grid. The impedance assembly comprises a) a PCB (170); b) a high-voltage contact (80) for connection to the power-carrying conductor; c) a first plurality of impedance elements (70) on the PCB, connected to the high-voltage contact and in series with each other such as to be operable in a first voltage divider (20) for sensing the voltage of the power-carrying conductor; and d) a second plurality of impedance elements (71) on the PCB, connected to the high-voltage contact and in series with each other such as to be operable in a second voltage divider (21) for harvesting electrical energy from the power-carrying conductor.
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