CN110301019A - 一种变压器及开关电源 - Google Patents

一种变压器及开关电源 Download PDF

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Publication number
CN110301019A
CN110301019A CN201780086803.5A CN201780086803A CN110301019A CN 110301019 A CN110301019 A CN 110301019A CN 201780086803 A CN201780086803 A CN 201780086803A CN 110301019 A CN110301019 A CN 110301019A
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CN
China
Prior art keywords
winding
side winding
transformer
magnetic
electro
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Granted
Application number
CN201780086803.5A
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English (en)
Other versions
CN110301019B (zh
Inventor
张洪波
戴勇军
刘晓松
王庆海
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN110301019A publication Critical patent/CN110301019A/zh
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • H01F27/289—Shielding with auxiliary windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/361—Electric or magnetic shields or screens made of combinations of electrically conductive material and ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • H01F27/2885—Shielding with shields or electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

一种变压器及开关电源。该变压器包括：磁芯结构、所述磁芯结构的同一磁柱上层叠环绕有若干绕组，所述若干绕组包括至少一个原边绕组和至少一个副边绕组；在至少两个相邻的所述绕组之间设有电磁屏蔽层，所述两个相邻的所述绕组为原边绕组和副边绕组，其中，所述电磁屏蔽层为磁性材料，该变压器上的电磁屏蔽层可以抑制绕组上的噪声电流，从而达到降噪的目的。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN201780086803.5A 2017-05-05 2017-05-05 一种变压器及开关电源 Active CN110301019B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/083333 WO2018201484A1 (zh) 2017-05-05 2017-05-05 一种变压器及开关电源

Publications (2)

Publication Number Publication Date
CN110301019A true CN110301019A (zh) 2019-10-01
CN110301019B CN110301019B (zh) 2021-07-09

Family

ID=64016810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201780086803.5A Active CN110301019B (zh) 2017-05-05 2017-05-05 一种变压器及开关电源

Country Status (4)

Country Link
US (1) US20200168389A1 (zh)
EP (1) EP3614405A4 (zh)
CN (1) CN110301019B (zh)
WO (1) WO2018201484A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112198357A (zh) * 2020-07-21 2021-01-08 华北电力大学 具有带状缠绕式屏蔽外壳的电流传感器
CN116741511A (zh) * 2023-06-09 2023-09-12 先歌国际影音股份有限公司 防电磁干扰的电源变压器

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* Cited by examiner, † Cited by third party
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US11688545B2 (en) * 2019-07-23 2023-06-27 Jordan Seanard Removable weighted vehicle safety guard system
US20220037080A1 (en) * 2020-07-29 2022-02-03 Cree Fayetteville, Inc. Shielding arrangements for transformer structures
WO2022023910A1 (en) 2020-07-31 2022-02-03 Silanna Asia Pte Ltd Transformer with interleaved shielding windings
US11996230B1 (en) * 2023-04-08 2024-05-28 Teelson, LLC Systems and methods for amplifying power

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US20060244398A1 (en) * 2005-04-28 2006-11-02 Matsushita Electric Works, Ltd. Transformer
US20070171585A1 (en) * 2006-01-25 2007-07-26 Delta Electronics, Inc. Method for suppressing common mode noise
CN101236827A (zh) * 2007-03-30 2008-08-06 广州市中奕通讯设备有限公司 无y电容时开关电源变压器解决电磁兼容性的方法及产品
CN202102849U (zh) * 2011-04-25 2012-01-04 厦门亚锝电子科技有限公司 一种高频开关电源变压器
CN202564037U (zh) * 2012-05-28 2012-11-28 宁波龙宇光电科技有限公司 变压器
CN103021635A (zh) * 2012-11-29 2013-04-03 华为技术有限公司 一种llc变压器及电源设备
CN203503422U (zh) * 2013-10-23 2014-03-26 国家电网公司 一种具有散热功能的降噪减磁电抗器

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US3173115A (en) * 1962-10-26 1965-03-09 Westinghouse Electric Corp High voltage potential transformer
US5216356A (en) * 1990-11-13 1993-06-01 Southwest Electric Company Shielded three phase transformer with tertiary winding
US6950291B1 (en) * 1999-11-29 2005-09-27 Lucent Technologies Inc. Electromagnetic interference shielding for small magnetic devices
EP1313111A1 (en) * 2001-11-19 2003-05-21 FRIWO Far East Limited Transformer
US7119647B2 (en) * 2001-12-21 2006-10-10 Power Integrations, Inc. Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components without requiring additional windings
CN101521109A (zh) * 2008-11-13 2009-09-02 杭州勇华车业有限公司 变压器绕线工艺
CN102881425A (zh) * 2012-09-06 2013-01-16 苏州市吴中区大陆电子设备厂 一种屏蔽效果好的变压器
FR3007214B1 (fr) * 2013-06-14 2015-07-17 Commissariat Energie Atomique Blindage magnetique d'antenne utilisant un composite a base de couches minces magnetiques et antenne comprenant un tel blindage
US9973027B2 (en) * 2015-09-01 2018-05-15 Dell Products, Lp Wireless power charging device with rear side magneto isolation marking

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060244398A1 (en) * 2005-04-28 2006-11-02 Matsushita Electric Works, Ltd. Transformer
US20070171585A1 (en) * 2006-01-25 2007-07-26 Delta Electronics, Inc. Method for suppressing common mode noise
CN101236827A (zh) * 2007-03-30 2008-08-06 广州市中奕通讯设备有限公司 无y电容时开关电源变压器解决电磁兼容性的方法及产品
CN202102849U (zh) * 2011-04-25 2012-01-04 厦门亚锝电子科技有限公司 一种高频开关电源变压器
CN202564037U (zh) * 2012-05-28 2012-11-28 宁波龙宇光电科技有限公司 变压器
CN103021635A (zh) * 2012-11-29 2013-04-03 华为技术有限公司 一种llc变压器及电源设备
CN203503422U (zh) * 2013-10-23 2014-03-26 国家电网公司 一种具有散热功能的降噪减磁电抗器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112198357A (zh) * 2020-07-21 2021-01-08 华北电力大学 具有带状缠绕式屏蔽外壳的电流传感器
CN116741511A (zh) * 2023-06-09 2023-09-12 先歌国际影音股份有限公司 防电磁干扰的电源变压器
CN116741511B (zh) * 2023-06-09 2024-04-16 先歌国际影音股份有限公司 防电磁干扰的电源变压器

Also Published As

Publication number Publication date
WO2018201484A1 (zh) 2018-11-08
EP3614405A4 (en) 2020-06-03
EP3614405A1 (en) 2020-02-26
CN110301019B (zh) 2021-07-09
US20200168389A1 (en) 2020-05-28

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