TW403917B - Inductive element - Google Patents
Inductive element Download PDFInfo
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- TW403917B TW403917B TW087120654A TW87120654A TW403917B TW 403917 B TW403917 B TW 403917B TW 087120654 A TW087120654 A TW 087120654A TW 87120654 A TW87120654 A TW 87120654A TW 403917 B TW403917 B TW 403917B
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- injection molding
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- 230000001939 inductive effect Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000001746 injection moulding Methods 0.000 claims abstract description 20
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 239000000696 magnetic material Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 8
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 238000000071 blow moulding Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920000106 Liquid crystal polymer Polymers 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000005028 tinplate Substances 0.000 description 2
- 235000005206 Hibiscus Nutrition 0.000 description 1
- 235000007185 Hibiscus lunariifolius Nutrition 0.000 description 1
- 241001075721 Hibiscus trionum Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241001661960 Molothrus badius Species 0.000 description 1
- 229910003962 NiZn Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0033—Printed inductances with the coil helically wound around a magnetic core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
- H01F41/046—Printed circuit coils structurally combined with ferromagnetic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Coils Or Transformers For Communication (AREA)
Description
、本發明有關製造SMD應用 以下步驟: 包感70件方法:其方法包括 a )提供多數顧英丑> 中,、 ’ 订電電線於—噴射模製裝置之模型 b) 以此電線末端保 部分合成樹脂電線、',、、 方法藉噴射模製環繞地提供一 c) 提供一軟磁性材料 部分、。 、匕圍繞環繞地噴射模製之電線 本發明亦有關—電感元 、— 例如特別是電力電咸琴 ·。電感元件特別包括電感器, 特別是電力變壓器:° 一电感線圈’,和變壓器一樣·,例如 經發現實際上根據上 ' 題,·例如在質量產生之雷法製造之電感元件會引發問 性性質變化至一非預期矿2元件實例中,元件之電氣與磁 間產生之磁場係非最佳 已發現在攻些元件之操作期 氣短路發生在這些元件;5質化·。同樣地已發現有時一電 時,.增加這些缺點。 。當電線之厚度或直徑選擇較小 本發明之一目的係排降 在提供以促使製造且改谁’〔缺點’本發明更特別地瞄準 法' 本發明同樣地目苗準::電氣與磁性性質之電感元件方 本發明之這些與其A供-改進的電感元件,。 之方法完&,.其特徵在:精在上開段落中所敘述型式 模製之電線部分係固定在;噴射模製操作期間環繞地噴射 口疋在杈型中, 本發明係建立在實給—+ · 式洞察噴-射模製程序期間電線之變
403917 五、發明說明(2) 形成為該缺點之肩 力造成。'在該噴射制變形係由合成樹脂噴射入模型之 固電線在模型中減二衣呆作期間該非預期變形大致係藉堅 本發明之一y社 > 且有時甚至預先排除,。 電線在模型令;例係特徵在喷射模製裝置係用於堅固 線,.例如藉一條黏著二原則上,.注意其亦可能彼此連結電 程序步驟丨即提供 ,准‘此可旎性需要一額外 在一高溫噴射入模型時^外,、經發現當使用合成樹脂 又-較佳實例;在法係較不令人滿意,。 係提供在模型中且在夾後:3至;-對長形零件.,其 使呈刀刃形式.,當模以;;件可-體化., 線上。'若使用—對此刀刀 Λ·以夾住方法放置在電 近似環繞地嗔射模製之電線二較:係以像這樣的. 置在模型中。 ’’ 邛刀仏以夾住方法接合配 上—敘述方法實例之-' 而包含二對延長零件]之=:修改係根據本發明特徵方法 狀係以像這樣的鄰近電吃获嵩狀在固定電線之間.,其齒 該零件上。如此測精:同對零件保持方法分佈在 大於最後敘述實例。纟士 在鄰近電線間之匍旬距離係 危險係減少.。 由於濕氣由一短路造成之問題 部分' ii例電線形成-導線架構 在噴射模製裝置之模型中導,.泉杀構之使用簡化電線位置 線或電線在於該嘴射模圭是,電線亦連結至鄰近電 楨衣#作期:間喷射模製裝置之部分放 403917 “熹明說明(3) 上亦之此因擠出預先排除噴射模製材料.。這 斷? ,考為"壩桿)在合成樹脂已提供之後必須中 脂之另-適宜實例係(特徵在-熱塑合成樹 保存合成原則上:注意-熱 存合成樹脂之二式5、1惟,.*於必要I,定製熱保 質量產製使用。車;::保:俜:涂它們係較差吸引力於以 之熱塑合成榭 彳疋./、係由建立在液晶聚合物基礎上 有相當好的熄二;2、。t亥聚合物可輕易地喷射模製·,且具 本發明亦有p 6 A 4 Λ 其係藉噴射槿I; t:數顯著平行導電電線之電感元件‘, 楔製部分係收二1 i k繞地提供一合成樹脂.,電線之喷射 較佳是,、使用:在一軟磁性材料之塊狀,、未分割核心中 無連結表面)時,熱塑合_成樹脂:若使用一未分割核心(即 係最佳的。較佳、3則在元件之操作期間產生之磁場同質化 矣且成。、非常適〜疋:核心係顯著地由一軟磁性亞鐵鹽材料 鉾(NiZn)亞ϋ的亞鐵鹽材料包括錳辞(ΜηΖη)亞鐵鹽與鎳 A <材料。 本發明之這些盥苴‘ 且閣明。 ’、/、他内容將參考在下文說明之實例明瞭 圖式中: 圖1係根據本於明_兩、一 圖2係圖i所示^4感元件之立體圖、, 圖3A,3B與3C ^電f元件之概要縱向剖面圖·,及 不藉根據發明_方法獲得之中間產物。
第8頁 403917 五、發明說明(4) 為了說注意圖式係未依比例繪製/在不同圖式中類 似參考數字係指在圖式中之類似元件。 圖1以一電感器形式顯示一電感元件之立體圖,,此電感 元件包含一軟磁性亞鐵材料之塊狀,、未分割核心(1).,其 中此殼體由MnZn亞鐵鹽組成。該核心i包含」穿孔(2),, 其穿通十支錫板銅電線(3)。這些電線在它們的尾部(4)係 以像這樣的電感元件可焊接為一SMD元件在—印刷電路板 Π)蓋上方:: έ广嘴射模製程^ 地覆盍二=乳式絕緣合成樹脂,其中此殼體由一熱塑合成 樹知組成在液晶聚合物基礎上a 圖2係圖1顯示之電感元件之概要縱向剖 。 根據本發明方法係藉圖3_Α, 3_β與3_c較 ’ 3 -A顯示錫板銅之導嗖加椹「R呼‘·.田地次 圖 構中之+個工 (部分、,#包含提供在導線架 構中之十1大致平行電線(3) ^電線係 結至導線架構(5)之耠、笨你u ^在匕們的末私(6)連 (3) « „ ^ ^ ^ ^ f 槎勹人丄曰)連至郴近电線、,稱為"壩桿"。一導線牟 構包含大Μ些電線結構,、如圖3-A顯示杯, 木 大致平行電線(3)係隨後導引入―、 示)之模型,产从α & 貝射核製裝置(未顯
模t 、%凌地噴射模製之電線部·^ p M 續。.由於這些壩桿呈3見,嗔射 =接 間。、 貝兴衣材科未擠出在電線之 在噴射模製程序 電線之裝置。在它 模型之二個刀刃組 期間、噴射模製裝置 們最簡單的形式中 成、’在其間電_線大 之模型包含用以堅固 ’這些裝置由連結至 致係夾住在中間,。圖
第9頁 403917 五 ⑸ 發明說明 3墓在一部分電線已根據發明方法严μ ^線术構之平面圖、。在此方法中、,接1繞地噴射模製之後 ,、其擴延和"壩桿"(8) 一樣 =—合成樹脂層 ,形成在合成樹脂層⑼中.,々3^輕::; 小量點著劑提it8)個與/二^繞^導線架構移除·。在 料之表面上之德,一、 ,%也貝射模製合成樹脂材 分割 '塊狀封包传:鹽材料(ΜηΖη亞鐵鹽)之未 後,、電線自由;射模製電線之上·。最‘ 曲’、其保持適宜使用Α /成一稱為海灣翼方法彎 中,、使用於環繞地噴㊉之改進實例。在此實例 用以堅固電線。這此A 、衣电線之模型包含二對延長零件 近電線未藉相同對係提供齒狀’其係以像這樣的鄰 議距離持方法分佈在零件上。此方法造 中電感元件操作=鄰接f線之間。結[在潮濕環境 喷射模製結構係以如‘::;危險係小的。組合之環繞地 件·。 々在此上述之相同方法轉換至電感元 經發現在择竹+ 最佳同質磁場,同發明方法製造之電感元件型式產生 ‘樣地’、電氣短路危險證明係極少。
1 第10頁
Claims (1)
- 403917 申凊專利範圍 __________ 1. 一種製造SMD應用之電感元件 、 步驟: 法:該方法包括以下 a)提供複數個主要平行的導電, 模型中‘, 線於—噴射模製裝置之 b )以此電線末端保持自由方法择# 成樹脂給一部分電線, 9貝射模製環繞地提供合 〇提供—軟磁性材料之封包圍絲 線四周,·及 ①%繞噴射模製部分之兩 〇重製電線末端形狀; 包 其特徵在於該噴射模 線係固定在模型中,。作期間環繞嘴射 . 2. 如申請專利範圍宽〗s \ 权“分之電 裝置係備有用於固 之方法.,其特徵 3如由& _ U疋電線在模型中$ _文在於噴射模製 至少I;專利範圍第2項之方法\裝置,。 4如申嗜直 其k供於杈型中 、裝且包含 二對延圍第2項之方法,Λ夾住電線之間。 :俜之裳置,·其備有齒狀在二在於包含至少 狀知u像廷樣的鄰 \在固定電線之鬥 v 該零件上。 免線未措相同對敦# &】之間.,其齒 5_如申請專利範圍 刀佈在 一導線架構部分,复 員方法’·其特徵在扒+ 6-如φ &审.其輪送條片被移除做在於電線形成 6. 如申凊專利範圍 t。 攻 成樹脂係藉噴射模制 、 1 ’’其特徵在 7锸^ I 衣嘎繞地提供在電妫於—熱塑合 7. 一種包含複數侗i i缘上。 D 一 i ”泉之電感元件,1第11頁 报數個主要平行的.導電. 403917 六、申請專利範圍 係藉噴射模製部分環繞地提供一合成樹脂.,電線之噴射模 製部分係收容在一軟磁性材料之塊狀.、未分割核心中。 8.如申請專利範圍第7項之電感元件.,其特徵在核心主 要是由軟磁性肥粒鐵材料所組成.。第12頁
Applications Claiming Priority (1)
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EP98201463 | 1998-05-08 |
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TW403917B true TW403917B (en) | 2000-09-01 |
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TW087120654A TW403917B (en) | 1998-05-08 | 1998-12-11 | Inductive element |
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US (2) | US6259345B1 (zh) |
DE (1) | DE69911839T2 (zh) |
TW (1) | TW403917B (zh) |
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US8324872B2 (en) | 2004-03-26 | 2012-12-04 | Marvell World Trade, Ltd. | Voltage regulator with coupled inductors having high coefficient of coupling |
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US8299885B2 (en) * | 2002-12-13 | 2012-10-30 | Volterra Semiconductor Corporation | Method for making magnetic components with M-phase coupling, and related inductor structures |
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US8416043B2 (en) | 2010-05-24 | 2013-04-09 | Volterra Semiconductor Corporation | Powder core material coupled inductors and associated methods |
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US9281739B2 (en) | 2012-08-29 | 2016-03-08 | Volterra Semiconductor LLC | Bridge magnetic devices and associated systems and methods |
CN104901619A (zh) * | 2015-05-25 | 2015-09-09 | 常熟市福莱德连接器科技有限公司 | 一种光伏接线盒的制造方法 |
DE102017209097A1 (de) * | 2017-05-31 | 2018-12-06 | Robert Bosch Gmbh | Verbindungsanordnung und korrespondierendes Verfahren zur Montage eines elektronischen Bauteils auf einer Leiterplatte |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8004200A (nl) * | 1980-07-22 | 1982-02-16 | Philips Nv | Kunststofgebonden electromagnetische component en werkwijze voor het vervaardigen daarvan. |
US4680617A (en) * | 1984-05-23 | 1987-07-14 | Ross Milton I | Encapsulated electronic circuit device, and method and apparatus for making same |
US4872825A (en) * | 1984-05-23 | 1989-10-10 | Ross Milton I | Method and apparatus for making encapsulated electronic circuit devices |
US5977855A (en) * | 1991-11-26 | 1999-11-02 | Matsushita Electric Industrial Co., Ltd. | Molded transformer |
US5455552A (en) * | 1994-05-03 | 1995-10-03 | Steward, Inc. | Ferrite common mode choke adapted for circuit board mounting |
-
1998
- 1998-12-11 TW TW087120654A patent/TW403917B/zh not_active IP Right Cessation
-
1999
- 1999-04-29 DE DE69911839T patent/DE69911839T2/de not_active Expired - Fee Related
- 1999-05-07 US US09/307,158 patent/US6259345B1/en not_active Expired - Fee Related
-
2001
- 2001-05-16 US US09/858,725 patent/US6549111B1/en not_active Expired - Fee Related
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US7849586B2 (en) | 2003-07-16 | 2010-12-14 | Marvell World Trade Ltd. | Method of making a power inductor with reduced DC current saturation |
US7868725B2 (en) | 2003-07-16 | 2011-01-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
US7882614B2 (en) | 2003-07-16 | 2011-02-08 | Marvell World Trade Ltd. | Method for providing a power inductor |
US7987580B2 (en) | 2003-07-16 | 2011-08-02 | Marvell World Trade Ltd. | Method of fabricating conductor crossover structure for power inductor |
US8028401B2 (en) | 2003-07-16 | 2011-10-04 | Marvell World Trade Ltd. | Method of fabricating a conducting crossover structure for a power inductor |
US8035471B2 (en) | 2003-07-16 | 2011-10-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
US8098123B2 (en) | 2003-07-16 | 2012-01-17 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
US8324872B2 (en) | 2004-03-26 | 2012-12-04 | Marvell World Trade, Ltd. | Voltage regulator with coupled inductors having high coefficient of coupling |
Also Published As
Publication number | Publication date |
---|---|
US6549111B1 (en) | 2003-04-15 |
DE69911839T2 (de) | 2004-08-05 |
US6259345B1 (en) | 2001-07-10 |
DE69911839D1 (de) | 2003-11-13 |
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