TWM370815U - Transformer structure - Google Patents

Transformer structure Download PDF

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Publication number
TWM370815U
TWM370815U TW98214843U TW98214843U TWM370815U TW M370815 U TWM370815 U TW M370815U TW 98214843 U TW98214843 U TW 98214843U TW 98214843 U TW98214843 U TW 98214843U TW M370815 U TWM370815 U TW M370815U
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Taiwan
Prior art keywords
coil
module
coil module
transformer
secondary side
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TW98214843U
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Chinese (zh)
Inventor
xian-zhi Chen
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Intelextron Inc
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Priority to TW98214843U priority Critical patent/TWM370815U/en
Publication of TWM370815U publication Critical patent/TWM370815U/en

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Description

M370815 五、新型說明: 【新型所屬之彳支#Η員域】 [0001] 本創作涉及一種變壓器結構,主要指一種不須線座設 計並可降低變壓器體積、高度結構。 【先前技術 [0002] 變壓器為電器設備常使用之元件,如第九圖所示為習 知變壓器結構之一,主要具柱狀線座Γ 、鐵心2’ 、線 圈3’ 、4’組成,並該線座1’具軸柱11’ ,並軸柱11’M370815 V. New description: [New type of affiliated branch #Η员 domain] [0001] This creation involves a transformer structure, which mainly refers to a design that does not require a wire base and can reduce the volume and height structure of the transformer. [Prior Art [0002] Transformer is a component commonly used in electrical equipment, as shown in Figure IX is one of the conventional transformer structures, which mainly consists of a columnar wire Γ, a core 2', a coil 3', 4', and The wire holder 1' has a shaft column 11' and the shaft column 11'

外側具繞線槽12’ 、中央具透孔13’ ,並繞線槽12’提 供縱向纏繞變壓器一次侧、二次側之線圈3’ 、4’ ,並 於繞線槽12’上設置阻隔層14’ ,並該線圈3’ 、4’為 漆包線,又鐵心2’設於線座1’之中央透孔13’上,使 得鐵心2’與一次側、二次侧線圈3’ 、4’產生電磁耦合 感應,並配合一次侧、二次側線圈3’ 、4’之圈數比例 達到電壓轉換目的。 前述變壓器結構雖然線圈3’ 、4’可纏繞線座Γ繞 製,惟必須設置線座Γ組件,又其線圈3’ 、4’為對應 線座Γ縱向繞製,造成體積增大及高度較高缺失,又因 於電路板上常因該體積較大、較高之變壓器增加其體積 ,造成電器產品體積不易輕巧化、輕便化缺失,不符合 現代設計需求。 又因線架種類繁多,然而線圈3’ 、4’必須搭配各式 線架繞製,因而線圈3’ 、4’繞製形狀不易規格化。 台灣公告第422400號專利揭示變壓器之線圈5’呈由 外侧至中央螺旋繞製方式,並如第十、十一圖所示,其 表單編號Α0101 第3頁/共21頁 M370815 一端部51’由螺旋外圈延伸出,另一端部52’由螺旋内 圈跨過螺旋内、外圈上方延伸出,因.而該線圈5 ’可由較 低約二層線徑高度a即可具較多繞製圈數,然而前述設計 仍具一層空間浪費(如圖b上層空間)缺失,因而該設計仍 不能有效降低變壓器高度。 【新型内容】 [0003] 本創作之目的在提供一種不須線座並可降低變壓器體 積、南度結構。 本創作包含鐵心、數線圈模組,並該鐵心可為EE型、 EI型或其他型式鐵心,並具中心軸;又數線圈模組可為 繞線之線圈模組或具導電片之線圈模組,又本創作主要 之繞線圈模組為漆包線繞製,並具電性導通之上、下端 部,並該上、下端部分別連結直徑較大之上、下外圈, 並該上、下外圈分別朝向中心設置呈螺旋直徑漸小之預 定圈數内圈,並使該線圈模組之上、下外圈、内圈可上 、下疊合成二層架構,並該線圈模組可由適當繞線機具 成型或由其他方式設置具設定二層形體,並該中央直徑 最小之内圈可套合鐵心中心轴,並使二層線圈模組架構 即可具較多圈數以減低變壓器高度;又該各線圈模組可 依需求設計不同線徑,並可令各線圈模組呈縱向排列分 別套合鐵心中心軸组設,又該設定線圈模組之端部可互 為串接、並接,並可製作隔離型、自耦型或其他型式變 壓器,並使本創作可組成不須線座並可具高度降低、體 積小之變壓器。 本創作之部分線圈模組可具導電片,並該導電片可為 表單編號A0101 第4頁/共21頁 M370815 銅、鋁或其他導電合金材質,並可由沖壓成型或其他方 式製造,並可為一片或多片疊合,又該導電片具環形部 ,並該環形部具二不接觸之端部,並中央具可套合鐵心 中心軸之套孔,又於導電片外緣覆設絕緣層;藉此該線 圈模組可適於大電流負載使用,並可具高度降低、體積 小功效。 【實施方式】 [0004] 請參閱第一、二圖,其中第一圖僅顯示一繞線之線圈The outer side has a winding groove 12', the center has a through hole 13', and the winding groove 12' provides a coil 3', 4' for longitudinally winding the primary side and the secondary side of the transformer, and a barrier layer is disposed on the winding groove 12'. 14', and the coils 3', 4' are enameled wires, and the core 2' is disposed on the central through hole 13' of the wire holder 1', so that the core 2' and the primary side and secondary side coils 3', 4' are produced. The electromagnetic coupling is sensed, and the ratio of the number of turns of the primary side and secondary side coils 3' and 4' is used for voltage conversion purposes. In the foregoing transformer structure, although the coils 3' and 4' can be wound around the wire base, the wire seat Γ assembly must be provided, and the coils 3' and 4' are wound in the longitudinal direction of the corresponding wire yoke, resulting in an increase in volume and height. The high loss is also caused by the fact that the larger and higher transformers on the circuit board often increase their volume, which makes the electrical product volume less difficult and lighter, and lacks lightness, which is not in line with modern design requirements. Further, since the number of wire frames is various, the coils 3' and 4' must be wound with various wire frames, so that the coils 3' and 4' are not easily standardized. Taiwan Patent No. 422400 discloses that the coil 5' of the transformer is wound from the outside to the center, and as shown in the tenth and eleventh figures, the form number Α0101, page 3/21 pages, M370815, one end 51' The spiral outer ring extends, and the other end portion 52' extends from the spiral inner ring across the inner and outer rings of the spiral, because the coil 5' can be wound more by a lower height of about two layers. The number of turns, however, the aforementioned design still has a space waste (as shown in the upper space of Figure b), so the design still cannot effectively reduce the height of the transformer. [New Content] [0003] The purpose of this creation is to provide a structure that does not require a wire holder and can reduce the transformer volume and the south structure. The creation includes a core and a number of coil modules, and the core can be an EE type, an EI type or other type of core, and has a central axis; and the number of coil modules can be a wound coil module or a coil mold with a conductive sheet. The main winding coil module of the present invention is an enameled wire wound, and has electrical conduction upper and lower end portions, and the upper and lower end portions respectively connect the upper diameter and the lower outer ring respectively, and the upper and lower sides are respectively The outer ring is respectively arranged with a predetermined number of inner rings with a spiral diameter decreasing toward the center, and the upper and lower outer rings and the inner ring of the coil module can be stacked up and down to form a two-layer structure, and the coil module can be appropriately The winding machine is formed or otherwise set with a two-layered body, and the inner ring having the smallest central diameter can fit the central axis of the iron core, and the two-layer coil module structure can have more turns to reduce the height of the transformer; In addition, the coil modules can be designed with different wire diameters according to requirements, and the coil modules can be arranged in a longitudinal direction and respectively arranged with the center axis of the iron core, and the ends of the set coil modules can be connected in series and connected to each other. And can be made isolated, auto-coupled Other types of transformers, and the composition may be present without the creation of base line can be highly reduced, a small volume of the transformer. A part of the coil module of the present invention may have a conductive sheet, and the conductive sheet may be made of copper, aluminum or other conductive alloy material of form number A0101, page 4 of 21, and may be manufactured by stamping or other means, and may be One or more sheets are stacked, and the conductive sheet has an annular portion, and the annular portion has two end portions which are not in contact with each other, and has a sleeve hole which can fit the central axis of the iron core, and an insulating layer is disposed on the outer edge of the conductive sheet The coil module can be used for high current loads, and can be reduced in height and small in size. [Embodiment] [0004] Please refer to the first and second figures, wherein the first figure only shows the winding of a winding

模組,第二圖為繞線之線圈模組拉伸展開圖,以便於清 楚觀示線圈模組繞線方式,本創作包含鐵心1、數線圈模 組2(第一圖僅顯示一線圈模組),並該鐵心1為EE型,並 亦可為EI型或其他型式鐵心,並具中心軸11 ;又本創作 主要之繞線線圈模組2為導電體’並為表面絕緣之漆包線 繞製,並具電性導通之上、下端部21、22,並該上、下 端部21、22分別連結直徑較大之上、下外圈23、24,並 該上、下外圈23、24分別朝向中心設置呈螺旋直徑漸小 之預定圈數内圈25,而該内圈25之圈數依設計需求設定 ,例如可為4圈、5圈、6圈、8圈、10圈…等圈數,並使 該線圈模組2之上、下外圈23、24、數内圈25可上、下疊 合成二層架構,並該線圈模組2可由適當繞線機具成型, 並成型後可具設定二層形體,並可製作成規格化組件, 並該中央直徑最小之中心内圈25a可套合鐵心1中心軸11 ,並使二層線圈模組2架構即可具較多圈數以減低變壓器 高度,又該線圈模組2之上、下層外圈23、24及上、下層 内圈25位置可對應,並可具較佳疊合強度、不易變形及 表單編號A0101 第5頁/共21頁 M370815 可易於規格化量產。 本創作之各線圈模組2可依需求設計不同線徑,並可 令各線圈模組2呈縱向排列分別疊置套合鐵心1中心軸1 1 ,並於設定線圈模組2之端部可互為串接或並接,並可製 作隔離型、自耦型或其他型式變壓器,請參閱第三、四 圖為本創作第一實施例實施於隔離型變壓器結構,並該 隔離型變壓器具一次侧、二次侧線圈3、4,並一次侧、 二次侧線圈3、4分別具數線圈模組2,圖中所示分別具三 個、一個線圈模組2 ’並為降壓變,壓器,又該對應一次側 、二次侧線圈3、4之各線圈模组2端部分別由連結段31、 41連結’並圖式之連結方式係於繞製:時直接由線圈模組2 之線材形成連結段連結,而該連結段亦可為外加設置導 體形成’又該一次側、二次側線圈3、4之各線圈模組2間 具間隔32、42,並該間隔32、42可分別穿插二次側、一 次側線圈模組2,並於穿插組合後再套合鐵心1中心軸11 ’如此可組成不須線座,並可具高度降祗、體積小之隔 離型變壓器一 請參閱第五圖為本創作第二'實施例隔離型變壓器示意 圖’並第五圖顯示具不同線徑之一次侧、二次側線圈5、 6 ’並該一次侧、二次侧線圈5 ' 6具本創作之線圈模組架 構’而本創作之線圈模組線徑可依設計需求設定。 請參閱第六圖為本創作第三實施例自耦型變壓器示意 圖’並該變壓器具二線圈模組2,並二線圈模組2—端部 由連結段7連結,並該連結段7與下方端部22形成二次側 接點,並上、下端部21、22形成一次侧接點,因而本創 作可藉由數線圈模組2組成各式變壓器。 表單編號A0101 第6頁/共21頁 M370815 請參閱第七、八圖,本創作第四實施例之部分線圈模 組為前述繞線線圈模組2,而圖中所示之繞線線圈模組2 為變壓器一次側,又部分線圈模組8具導電片81,並該導 電片81可為銅、鋁或其他導電合金材質,並可由沖壓成 型或其他方式製造,又該導電片81具環形部82,並該環 形部82具二不接觸之端部83、84,並中央具可套合鐵心1 中心轴11之套孔85,又於導電片81外緣覆設絕緣層86, 並該線圈模組8設於變壓器二次側;藉此該線圈模組8可 適於大電流負載使用,並可具高度降低、體積小功效。 是以由以上所述,本創作不須設置線架,並二層線圈 模組設計可人幅降低變壓器高度,可適於現代輕巧、輕 便化之電器設備使用,而前述實施例僅為本創作例示, 並非用以限制本創作,凡依據本創作精神所為之等效改 變亦應屬於本創作範疇内。 【圖式簡單說明】 [0005] 第一圖係本創作之線圈模組、鐵心示意圖。 第二圖係本創作對應第一圖之線圈模組上、下展開示意 圖。 第三圖係本創作之第一實施例使用於隔離型變壓器分解 圖。 第四圖係本創作令第一實施例使用於隔離型變壓器組合 剖視示意圖。 第五圖係本創作之第二實施例使用於隔離型變壓器剖視 示意圖。 第六圖係本創作之第三實施例使用於自耦型變壓器剖視 表單編號A0101 第7頁/共21頁 M370815 示意圖。 第七圖係本創作之第四實施例分解圖。 第八圖係本創作之第四實施例組合剖視示意圖。 第九圖係習知變壓器剖視示意圖。 第十圖係另一習知變壓器線圈立體圖。 第十一圖係另一習知變壓器線圈剖視示意圖。 【主要元件符號說明】 [0006] 1鐵心 11中心軸 2線圈模組 21端部 22端部 23上外圈 24下外圈 25内圈 25a内圈 3 —次侧線圈 31連結段 32間隔 4二次側線圈 41連結段 4 2間隔 5 —次側線 圈 6二次側線圈 7連結段 8線圈模組 81導電片 8 2環形部 83端部 84端部 85套孔 86絕緣層 Γ線座 透孔 11, 軸柱 4·^ -¾ .::>卜; ':w Μ ; 1々, 丄 2 !"Γ'ί:Γ·: ' ’f:i ' r , 繞線槽 13’ 14’阻隔層 2, 鐵心 ..丨.以 , 3,- -次側線圈4’二 次側線圈 5’線圈 51, 端部 52, 端部 表單編號A0101 第8頁/共21頁The second picture shows the stretched development of the coil module of the winding, so as to clearly see the winding mode of the coil module. The creation includes the core 1 and the number of coil modules 2 (the first figure only shows a coil mold) Group), and the core 1 is EE type, and can also be EI type or other type core, and has a central axis 11; and the main winding coil module 2 of this creation is an electric conductor 'and is an enameled wire wound with surface insulation The upper and lower end portions 21 and 22 are electrically connected to the upper and lower end portions 21 and 22, respectively, and the upper and lower outer rings 23 and 24 are respectively connected to the upper and lower outer rings 23 and 24, and the upper and lower outer rings 23 and 24 are respectively connected. A predetermined number of inner rings 25 having a spiral diameter gradually decreasing toward the center are respectively arranged, and the number of turns of the inner ring 25 is set according to design requirements, for example, 4 circles, 5 rings, 6 circles, 8 rings, 10 rings, etc. And the upper and lower outer rings 23, 24 and the inner inner ring 25 of the coil module 2 can be stacked up and down to form a two-layer structure, and the coil module 2 can be formed by a suitable winding machine, and can be formed after molding. It has a two-layer shape and can be made into a standardized component, and the center inner ring 25a with the smallest central diameter can fit the center axis of the core 1 11 , and the two-layer coil module 2 structure can have more turns to reduce the height of the transformer, and the position of the coil module 2, the lower outer ring 23, 24 and the upper and lower inner rings 25 can correspond, and Can be better laminated strength, not easy to deform and form number A0101 Page 5 / 21 pages M370815 can be easily standardized for mass production. Each coil module 2 of the present invention can be designed with different wire diameters according to requirements, and each coil module 2 can be arranged in a longitudinal direction to overlap the central axis 1 1 of the sleeve core 1 and can be arranged at the end of the coil module 2 Interconnected or connected in parallel, and can produce isolated, auto-coupled or other type of transformer, please refer to the third and fourth figures for the first embodiment of the present invention implemented in the isolated transformer structure, and the isolated transformer has once The side and secondary side coils 3, 4, and the primary side and the secondary side coils 3, 4 respectively have a plurality of coil modules 2, each of which has three, one coil module 2' and is step-down. In the pressure device, the end portions of the respective coil modules 2 corresponding to the primary side and the secondary side coils 3 and 4 are respectively connected by the connecting sections 31 and 41, and the connection mode of the drawing is tied to the winding method: directly by the coil module 2, the wire material forms a connecting segment connection, and the connecting segment may be formed by externally providing a conductor. Further, the coil modules 2 of the primary side and secondary side coils 3 and 4 have spaces 32 and 42 therebetween, and the interval 32, 42 can be inserted into the secondary side, the primary side coil module 2, and the iron is inserted after the insertion and assembly 1 The central axis 11 ' can be formed into a non-linear seat, and can be equipped with a height-reducing and small-sized isolated transformer. Please refer to the fifth figure for the second 'example isolation transformer diagram' and the fifth figure shows The primary side and secondary side coils 5, 6' with different wire diameters and the primary side and secondary side coils 5 '6 have the coil module structure of the present invention' and the coil module diameter of the present invention can be designed according to the design requirements. set up. Please refer to the sixth figure for the schematic diagram of the autotransformer transformer of the third embodiment of the present invention, and the transformer has two coil modules 2, and the ends of the two coil modules 2 are connected by the connecting section 7, and the connecting section 7 and below The end portion 22 forms a secondary side contact, and the upper and lower end portions 21, 22 form a primary side contact. Therefore, the present invention can form various types of transformers by the number coil module 2. Form No. A0101 Page 6 of 21 M370815 Please refer to the seventh and eighth figures. The partial coil module of the fourth embodiment of the present invention is the aforementioned winding coil module 2, and the winding coil module shown in the figure 2 is a primary side of the transformer, and a part of the coil module 8 has a conductive sheet 81, and the conductive sheet 81 can be made of copper, aluminum or other conductive alloy material, and can be manufactured by stamping or other means, and the conductive sheet 81 has a ring portion. 82, and the annular portion 82 has two end portions 83, 84 which are not in contact with each other, and has a sleeve hole 85 which can fit the central shaft 11 of the core 1 and an insulating layer 86 on the outer edge of the conductive sheet 81, and the coil The module 8 is disposed on the secondary side of the transformer; thereby the coil module 8 can be used for a large current load, and can be reduced in height and small in size. Therefore, according to the above, the present invention does not need to be provided with a wire frame, and the design of the two-layer coil module can reduce the height of the transformer, and can be applied to modern, lightweight and lightweight electrical equipment, and the foregoing embodiment is only for the present creation. The illustrations are not intended to limit the creation of this work. Equivalent changes based on the spirit of this creation should also fall within the scope of this creation. [Simple description of the drawing] [0005] The first picture is a schematic diagram of the coil module and the core of the present invention. The second figure is a schematic diagram of the upper and lower expansion of the coil module corresponding to the first figure. The third figure is a first embodiment of the present invention for use in an isolated transformer exploded view. The fourth figure is a schematic cross-sectional view of the first embodiment for use in an isolated transformer combination. The fifth drawing is a cross-sectional view of a second embodiment of the present invention for use in an isolated transformer. Figure 6 is a third embodiment of the present invention for use in an autotransformer profile. Form No. A0101 Page 7 of 21 M370815 Schematic. The seventh drawing is an exploded view of the fourth embodiment of the present creation. The eighth drawing is a schematic cross-sectional view of a fourth embodiment of the present invention. The ninth figure is a schematic cross-sectional view of a conventional transformer. The tenth figure is a perspective view of another conventional transformer coil. Figure 11 is a schematic cross-sectional view of another conventional transformer coil. [Main component symbol description] [0006] 1 core 11 central axis 2 coil module 21 end 22 end 23 upper outer ring 24 lower outer ring 25 inner ring 25a inner ring 3 - secondary side coil 31 connecting section 32 interval 4 two Secondary side coil 41 connecting section 4 2 spacing 5 - secondary side coil 6 secondary side coil 7 connecting section 8 coil module 81 conductive sheet 8 2 annular portion 83 end 84 end 85 sleeve 86 insulating layer Γ line seat through hole 11, shaft column 4·^ -3⁄4 .::>b; ':w Μ ; 1々, 丄2 !"Γ'ί:Γ·: ' 'f:i ' r , winding groove 13' 14 'Barrier layer 2, iron core..丨.,, 3,- - secondary side coil 4' secondary side coil 5' coil 51, end 52, end form number A0101 Page 8 of 21

Claims (1)

M370815 六、申請專利範圍: 1. 一種變壓器結構,包含: 一鐵心,具中心軸; 數線圈模組’主要具繞線線圈模組,並該線圈模組為導電體 ’並表面絕緣,並具電性導通之上、下端部,並該上、下端 部分別連結直徑較大之上、下外圈,並該上、下外圈分別朝 * 向中心設置呈螺旋直徑漸小之内圈,並使該線圈模組之上、 • 下外圈、内圈上、下疊合成二層架構,並該中央直徑最小之 Φ 中心内圈可套合鐵心中心轴’並由各線圈模組疊置並令端部 連接組成。 2. 如申請專利範諸第i項所述之變壓器結構,其中線圈模組 為漆包線繞製》 3. 如申請專利範圍第1項所述之變壓器結構,其中線圈模組 之上、下層外圈及上、下層内圈位置對應。 4. 如申請專利範圍第1項所述之變壓器結構,其中各線圈模 組可具不同線徑。 馨 5.如申請專利範圍第丨項所述之變壓器結構其中具一次側 、二次側線圈’並-次侧、二次侧線圈分別具數線圈模組, • 並各線圈模組端部分別由連結段連結,又該一次側、二次側 線圈之各線圈模組間具間隔,並該間隔可分別穿插二次側、 一次側線圈模組,並於穿插組合後再套合鐵心中心軸。 6. 如申請專利範圍第5項所述之變壓器結構,其中連結段於 線圈模組繞製時直接由線圈模組之線材形成連結段連結。 7. 如申請專利範圍第5項所述之變壓器結構,其中連結段由 外加導體形成。 098214843 表單編號A0J0I 第9頁/共21頁 0983259263-0 M370815 8. 如申清專利範圍第1項所述之變壓$ & @ 模组可目·… 器結構’其中部分線圈 核組可具導電片,並該導電片具環形部 接觸之端部,㈣㈣套合㈣套^部具一不 片外緣覆設絕緣層。 之套孔,又於導電 9. 如申請專利範圍第8項所述之變壓器結構,其莫 片之線圈模組可設於變壓器…具導電 壓器H 並繞線_模組設於變M370815 VI. Scope of application: 1. A transformer structure comprising: a core with a central axis; a number coil module 'mainly with a wound coil module, and the coil module is an electrical conductor' and is surface insulated, and has Electrically conducting the upper and lower ends, and connecting the upper and lower ends to the upper and lower outer rings respectively, and the upper and lower outer rings respectively are arranged toward the center toward the center, and the inner diameter of the spiral diameter is gradually smaller, and The coil module is formed on the upper and lower outer rings, the inner ring and the lower ring, and the inner diameter of the Φ center inner ring can fit the core central axis and is superposed by the coil modules. Make the end connections. 2. The transformer structure as described in claim i, wherein the coil module is an enameled wire wound. 3. The transformer structure as described in claim 1 wherein the coil module is above and below the outer ring. And the upper and lower inner ring positions correspond. 4. The transformer structure of claim 1, wherein each coil module can have a different wire diameter. Xin 5. The transformer structure as described in the scope of claim 2, wherein the primary side and the secondary side coil 'the secondary side and the secondary side coil respectively have a plurality of coil modules, and the ends of the coil modules are respectively Connected by the connecting section, and the coil modules of the primary side and the secondary side coil are spaced apart, and the interval can be respectively inserted into the secondary side and the primary side coil module, and the core center shaft is inserted after the insertion and assembly. . 6. The transformer structure of claim 5, wherein the connecting section is directly connected by the wire forming the connecting section of the coil module when the coil module is wound. 7. The transformer structure of claim 5, wherein the connecting section is formed by an additional conductor. 098214843 Form No. A0J0I Page 9 of 21 Page 0893259263-0 M370815 8. The variable pressure $ & @ module can be used as shown in the first paragraph of the patent scope. The structure of the coil can be a conductive sheet, and the conductive sheet has an end portion in contact with the annular portion, and (4) (4) the sleeve (4) sleeve has a non-sheet outer edge covering the insulating layer. The sleeve hole is electrically conductive. 9. The transformer structure as described in claim 8 of the patent application, the coil module of the module can be arranged in the transformer... with the conductive device H and the winding_module is set in the transformer 098214843 表單編號A0101 第10百 * ιυ頁/共21頁 0983259263-0098214843 Form No. A0101 No. 10 * ιυ Page / Total 21 Pages 0983259263-0
TW98214843U 2009-08-12 2009-08-12 Transformer structure TWM370815U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9786429B2 (en) 2011-05-10 2017-10-10 Delta Electronics, Inc. Bobbin and magnetic module comprising the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9786429B2 (en) 2011-05-10 2017-10-10 Delta Electronics, Inc. Bobbin and magnetic module comprising the same

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