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公开(公告)号：US10205429B2
公开(公告)日：2019-02-12
申请号：US15271879
申请日：2016-09-21
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Tomokazu Tanimizu , Kazushige Ueno , Katsuyuki Morita , Yoshinori Ohashi
Abstract: An object is to provide an output-noise reduction device that can prevent noise from an electronic device accommodated in a metal casing from being transmitted due to electromagnetic coupling. An output voltage is extracted to the outside through a conducting bar. A magnetic body core includes a through hole through which the conducting bar is inserted. A chip capacitor is mounted on a mounting board and connects between the output terminal VO and ground potential. A section from the output terminal VO to at least part of the chip capacitor mounted on the mounting board is isolated from the electromagnetic coupling from the electronic device. Thus, noise is prevented from being transmitted to the output terminal VO.
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公开(公告)号：US20190027843A1
公开(公告)日：2019-01-24
申请号：US16081678
申请日：2017-03-02
Applicant: Kitagawa Industries Co., Ltd.
Inventor： Tatsuya Nakamura , Kazushige Ueno
CPC classification number: H01R12/57 , H01R4/02 , H01R12/707 , H01R13/24 , H01R43/0256
Abstract: The contact includes a base portion, a contact portion, and a spring portion integrally molded with a thin metal plate. The spring portion includes a first bending portion, a flat plate portion, and a second bending portion. The first bending portion is bent such that a first surface of the thin plate is on an outer peripheral side, and the second bending portion is bent such that a second surface of the thin plate is on an outer peripheral side. The thin plate has a thickness t of from 0.10 to 0.15 mm, a curvature radius R1 of the first bending portion is from 0.6 to 1.0 mm, and a ratio L/R1 of a length L between the first bending portion and the second bending portion of the flat plate portion to the curvature radius R1 is configured to satisfy 0
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公开(公告)号：US09704638B2
公开(公告)日：2017-07-11
申请号：US14904582
申请日：2014-08-06
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Tomokazu Tanimizu , Kazushige Ueno , Katsuyuki Morita , Teruaki Yuoka
Abstract: One end of a bus bar for leading an output voltage output from a switching power supply to the outside is a connection terminal connected to an output end associated with the switching power supply, while the other end is an output terminal VO. A ferrite core has a through-hole through which the bus bar is disposed. Electromagnetic coupling from the switching power supply is suppressed between the output terminal VO of the bus bar and at least a part of the ferrite core on the output terminal VO side along the bus bar. In this way, electromagnetic coupling of a part of a choke coil including the ferrite core with the bus bar penetrating therethrough on the output terminal VO side and the switching power supply is suppressed, whereby propagation of noise to the output terminal VO is suppressed.
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公开(公告)号：US10348008B2
公开(公告)日：2019-07-09
申请号：US16081678
申请日：2017-03-02
Applicant: Kitagawa Industries Co., Ltd.
Inventor： Tatsuya Nakamura , Kazushige Ueno
Abstract: The contact includes a base portion, a contact portion, and a spring portion integrally molded with a thin metal plate. The spring portion includes a first bending portion, a flat plate portion, and a second bending portion. The first bending portion is bent such that a first surface of the thin plate is on an outer peripheral side, and the second bending portion is bent such that a second surface of the thin plate is on an outer peripheral side. The thin plate has a thickness t of from 0.10 to 0.15 mm, a curvature radius R1 of the first bending portion is from 0.6 to 1.0 mm, and a ratio L/R1 of a length L between the first bending portion and the second bending portion of the flat plate portion to the curvature radius R1 is configured to satisfy 0
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公开(公告)号：US09276390B2
公开(公告)日：2016-03-01
申请号：US14370136
申请日：2013-09-30
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Tomokazu Tanimizu , Hideharu Kawai , Kazushige Ueno , Toshio Sakamoto , Keisuke Asoh
CPC classification number: H02G5/025 , H01F17/06 , H01F27/26 , H01F27/266 , H01F27/2823 , H01F27/2847 , H01F27/306 , H01F37/00
Abstract: In a bus bar assembly includes a magnetic body having at least a first insertion hole and a second insertion hole and a bus bar. The bus bar is configured so that directions of electrical current flowing through it are opposed to each other at least once. The magnetic body includes a middle leg in the middle region located between portions of the bus bar. At least the middle leg defines a gap rendering a magnetic field discontinuous. The bus bar is configured to extend through the first insertion hole of the magnetic body from a first side of the magnetic body to a second side opposed to the first side with respect to an extending direction of the bus bar and further through the second insertion hole from the second side to the first side. The middle leg is located between the first and second insertion holes.
Abstract translation: 在母线组件中包括具有至少第一插入孔和第二插入孔和母线的磁体。 母线被配置成使得流过它的电流的方向彼此相对至少一次。 磁体包括位于汇流条部分之间的中间区域的中间支腿。 至少中间的腿限定了使磁场不连续的间隙。 汇流条被构造为从磁体的第一侧延伸穿过磁体的第一插入孔，相对于母线的延伸方向延伸到与第一侧相对的第二侧，并且进一步穿过第二插入孔 从第二面到第一面。 中间腿位于第一和第二插入孔之间。
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Patent Agency Ranking
公开(公告)号：US20150008008A1
公开(公告)日：2015-01-08
申请号：US14370136
申请日：2013-09-30
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Tomokazu Tanimizu , Hideharu Kawai , Kazushige Ueno , Toshio Sakamoto , Keisuke Asoh
IPC: H02G5/02
CPC classification number: H02G5/025 , H01F17/06 , H01F27/26 , H01F27/266 , H01F27/2823 , H01F27/2847 , H01F27/306 , H01F37/00
Abstract: In a bus bar assembly including a magnetic body having insertion holes and a bus bar disposed through the insertion holes, the bus bar is configured so that directions of electrical current flowing therethrough are opposed to each other at least once. The magnetic body includes a middle leg in a middle region located between portions of the bus bar, where the directions of current are opposed to each other and end legs in end regions located opposite the middle region with respect to the portions. At least the middle leg defines a gap which renders a magnetic field produced by the current discontinuous.
Abstract translation: 在包括具有插入孔的磁体和通过插入孔布置的汇流条的汇流条组合件中，母线被配置为使得流过其中的电流的方向彼此相对至少一次。 磁性体包括位于汇流条部分之间的中间区域的中间部分，其中电流方向彼此相对，并且端部区域中的相对于该部分相对于中间区域的端部区域中的端部腿部。 至少中间的腿限定了由电流不连续产生的磁场的间隙。
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公开(公告)号：US10511114B2
公开(公告)日：2019-12-17
申请号：US16306351
申请日：2017-06-02
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Tatsuya Nakamura , Ichiro Nakagawa , Kazushige Ueno
Abstract: A contact includes a base portion fixable to a first member, a contact portion configured to make contact with a second member, and a spring portion configured to displaceably support the contact portion. The base portion, the contact portion, and the spring portion are integrally formed with a thin plate made of metal. The contact portion includes a flat plate portion extending in a flat plate shape from one end of a bent portion, and a protrusion protruding toward the second member is provided on the flat plate portion. The protrusion is provided at a location separated from a boundary between the contact portion and the spring portion by greater than or equal to 0.9 mm toward the contact portion.
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公开(公告)号：US10200005B2
公开(公告)日：2019-02-05
申请号：US15270577
申请日：2016-09-20
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Tomokazu Tanimizu , Kazushige Ueno , Katsuyuki Morita
Abstract: An object is to provide an output-noise reduction device in which a component encapsulated through insert molding can be appropriately protected.In a noise filter module (output-noise reduction device), a conducting bar and a magnetic body core are protected with a molded member formed through insert molding. The molded member is formed of a resin material with a molding shrinkage rate of 0.5% or less. Thus, the amount of shrinkage after the molded member is molded and stress as a result of the shrinkage can be made small, whereby damage on the magnetic body core, deformation of a lead frame, and the like can be prevented from occurring.
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公开(公告)号：US09693494B2
公开(公告)日：2017-06-27
申请号：US15250248
申请日：2016-08-29
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Yuya Okada , Kazushige Ueno
CPC classification number: H05K9/0071 , H01F17/06 , H01F2017/065 , H02M1/126 , H02M1/44 , H02M3/155 , H03H1/00 , H03H2001/0057 , H05K1/0215 , H05K1/0231 , H05K1/0233 , H05K1/181 , H05K3/0058 , H05K5/0213 , H05K5/04 , H05K9/0018 , H05K9/0049 , H05K9/0066 , H05K9/0075 , H05K2201/10015 , H05K2201/10272 , H05K2201/1031 , H05K2201/10636 , H05K2203/1327 , Y02P70/611
Abstract: Provided is a noise reduction device including: a conductive bar of conductive material extending through a through hole in a metal housing to the outside; a magnetic material core of magnetic material disposed at a peripheral edge of the conductive bar; a substrate attached to the conductive bar so as to be adjacent to the magnetic material core; a capacitor mounted on the substrate and having a first terminal connected to the conductive bar and a second terminal connected to an inner wall of the through hole; and a blocking unit blocking an opening of the through hole so as to affix the conductive bar to the metal housing. The magnetic material core, the substrate, and the capacitor are disposed in the through hole blocked by the blocking unit; and the conductive bar has an outer end that functions as an output terminal.
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公开(公告)号：US09692385B2
公开(公告)日：2017-06-27
申请号：US15254430
申请日：2016-09-01
Applicant: KITAGAWA INDUSTRIES CO., LTD.
Inventor： Yuya Okada , Kazushige Ueno
CPC classification number: H03H1/00 , H01F2017/065 , H02M1/126 , H02M1/44 , H02M3/156 , H03H1/0007 , H03H7/0115 , H03H2001/005 , H03H2001/0057 , H05K1/181 , H05K5/0213 , H05K5/04 , H05K9/0049 , H05K9/0066 , H05K9/0071 , H05K2201/10015
Abstract: Provided is a noise reduction device including: a conductive bar of conductive material; a metal tubular portion with a through hole having the conductive bar penetrating therethrough and accommodating a magnetic material core and a substrate therein; a capacitor mounted on the substrate and having a first terminal connected to the conductive bar and a second terminal connected to an inner wall of the through hole; and a blocking unit blocking an opening of the through hole so as to affix the conductive bar with respect to the metal housing and the tubular portion. The tubular portion includes an outer peripheral surface having a threaded engagement part threadedly engaged with the metal housing; and the conductive bar has an outer end that functions as an output terminal.
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