480500 A7 B7 五、發明說明（） 5-1發明領域： 本發明與一種電感及其形成方法有關，特別是一種直 立及平躺式兩用電感。 5-2發明背景： 電感（inductor)是電氣產品中經常使用的被動元件之 一。然而，在追求電氣產品輕、薄、短、小的努力中，欲 縮小電感的體積同時兼顧其電氣特性卻一直是個問題難以 克服的問題。例如，雖然縮小了電感的體積但是其直流電 阻値卻增加了。 在電感的實際使用上，有時欲將電感以直立的方式使 用於電路板上以減少所占的投影面積，然而以習知電感來 達成卻不甚理想，以第1圖之習知的電感10爲例，其具有 一鐵芯（core)20及一線圏（C〇il)30。其中線圏30部份係以銅 線捲繞於線圏20之外表面的方式形成的。因此，整個習知 電感1 〇的投影面積係爲鐵芯20的投影面積加上銅線截面 積的兩倍，亦即整個習知電感1 〇的投影面積必定大於鐵芯 2 0的投影面積。 仍請參閱第1圖，此銅線爲傳統的圓形截面，所以捲 繞而成的線圈將會佔去電感中絕大部分的體積，並且在數 圈層疊的線圈中會形成圓周與圓周之間的空隙而徒增體 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) % 經濟部智慧財產局員工消費合作社印製 — _____^ — ____________：____一_______ 480500 A7 B7 i、發明說明（） 積。當欲減少該電感的體積及厚度以減少投影面積時，若 試著由減少銅線的截面積著手（例如縮小銅線的半徑）時又 會遭遇直流電阻値增加的問題，因爲電阻與截面積成反 比。而這也正是習知技術中電感體積無法縮小的原因之 一。因此，如何在某一電感値之下，以不增加直流電阻値 的方式來縮小電感之體積或是厚度，將是電感設計者所必 須面對的課題之一。 5_3發明目的及槪述： 本發明揭露一種電感及其形成方法，本發明之電感除 了較習知電感體積更小及厚度更薄之外，更特別的是可依 需求選擇平躺或直立地於電路板上使用。例如，當欲減少 電氣裝置的厚度時，可在電路板上以平躺方式使用本發明 之電感；當欲減少電氣裝置的面積時，則可在電路板上以 直立方式使用本發明之電感。 本發明之第一實施例首先提供一具有一凹槽及兩個鐵 芯座開口之鐵芯座，且該鐵芯座開口位於該鐵芯座之同一 側壁上；接著，形成一扁平線圏於該鐵芯座之該凹槽中’ 且該扁平線圏具有第一端及第二端，該第一端及該第二端 的延伸方向係爲平行，且該第一端及該第二端可由該鐵芯 座開口向外延伸或露出而形成該電感之兩接腳；然後’形 成一鐵芯蓋板於該扁平線圏及該鐵芯座之上，該鐵芯蓋板 及該鐵芯座係共同作爲該電感之鐵芯。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注音？事項再填寫本頁) 線· 經濟部智慧財產局員工消費合作社印製 480500 A7 B7____ 五、發明說明（） (請先閱讀背面之注音3事項再填寫本頁) 本發明之第二實施例首先提供一具有一凹槽及一鐵芯 座開口之鐵芯座，且該鐵芯座開口位於該鐵芯座之側壁 上；接著，形成一扁平線圈於該鐵芯座之該凹槽中，且該 扁平線圏具有第一端及第二端，該第一端及該第二端的延 伸方向係爲平行，且該第一端及該第二端可由該鐵芯座開 口向外延伸或露出而形成該電感之兩接腳；然後，形成一 鐵芯蓋板於該扁平線圏及該鐵芯座之上，該鐵芯蓋板及該 鐵芯座係共同作爲該電感之鐵芯；然後，形成一側蓋於該 鐵芯座開口上，該側蓋具有兩個側蓋開口，且該第一端及 該第二端可由該側蓋開口向外延伸或露出而形成該電感之 兩接腳。 由於鐵芯座之鐵芯座開口係位於該鐵芯座之同一側 壁上，並且扁平線圈之第一端及第二端的延伸方向係爲平 行，所以本發明之電感的接腳可以形成於鐵芯座之同一側 壁上，並可視需求決定是否將接腳朝向鐵芯座之底面彎 折。若無彎折，則本發明之電感可以直立方式使用於電路 板上；若有彎折，則本發明之電感可以橫躺方式使用於電 路板上。 經濟部智慧財產局員工消費合作社印製 5-4圖式簡單說明： 本發明的較佳實施例將於往後之說明文字中輔以下列 圖形做更詳細的闡述： 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 480500 ΚΙ Β7 ____ 五、發明說明（） 第1圖係一習知的電感。 第2(a)圖係本發明電感之第一實施例的爆炸福。 第2(b)圖係本發明電感之第二實施例的爆炸圖。 第3(a)圖係本發明電感之第一實施例的外觀示意 圖。 第3(b)圖係本發明電感之第二實施例的外觀示意 圖。 第4圖係本發明之電感使用於電路板上之示意圖。 (請先閱讀背面之注音？事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 圖號對照說明： 100 電感 200 a 鐵芯座 200b 鐵芯座 210 凹槽 220 鐵芯座開口 300 扁平線圈 310 第一端 320 第二端 400 鐵芯蓋板 500 側蓋 510 側蓋開口 600 電路板 5-5發明詳細說明： 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 480500 A7 B7 五、發明說明（） 本發明揭露一種直立及平躺式兩用電感及其形成方 法。如第2(a)圖所示之第一實施例，該超薄型直立式電感 至少包含鐵芯座200a、扁平線圈300以及鐵芯蓋板400。 形成該電感之方法至少包含下列步驟：首先，提供一如第 2圖所示之鐵芯座200a，該鐵芯座200a具有一凹槽21〇 及兩個鐵芯座開口 220，該兩個鐵芯座開口 220係位於該 鐵芯座200a之同一側壁上。或者是說，該鐵芯座200a之 外觀類似一矩形盒狀物，具有一底面、四個側壁以及一可 容納物件之凹槽21 0，其中某一側壁上具有兩個鐵芯座口 220。 仍請參閱第2(a)圖，接著形成一具有第一端310及第 二端320之扁平線圈300於該鐵芯座200a之該凹槽210 中，並且使該扁平線圈300之第一端3 10及第二端320可由 該鐵芯座開口 220向外延伸或露出以作爲該電感之兩接 腳。此扁平線圈300的形狀吻合於（closely meet)該凹槽 210，因此扁平線圈300可以幾乎不產生空隙的方式形成於 (嵌入）該凹槽210中。 値得注意是，因爲該扁平線圈300並非捲繞於鐵芯之 表面上，而是形成於鐵芯座200a之該凹槽210中，所以明 6 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) % . 經濟部智慧財產局員工消費合作社印製 480500 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（） 顯地該扁平線圈300可以預先製作好再將其與鐵芯座200a 結合；或者是說，該扁平線圈300該鐵芯座200a之製作可 以同時進行，而不需待得到鐵芯之後再繞線（然習知必須如 此），此點對於縮短製程時間有很大的助益。 仍請參閱第2(a)圖，値得注意的是，該扁平線圈300 係由一均勻地披覆著絕緣層之薄片導線以各圈平行層疊方 式捲繞至少一圏而成的。該薄片導線係一極爲扁平之狹長 帶狀薄片，剖面爲寬度遠大於高（厚）度之矩形（例如相差10 倍）且具有一上表面及一下表面，該薄片導線捲繞後該上表 面會幾乎平貼於該下表面，因此層疊之各圈間的空隙可以 減至最少或是幾乎沒有。此外，若該薄片導線之厚度爲t 且捲繞圈數爲N，則該扁平線圈300之厚度（高度）約略爲 tN。在一較佳實施例中，該薄片導線之厚度及寬度分別約 爲0.24mm及2.4mm。然而，該薄片導線之厚度及寬度並 無限制，可視需要更改。 仍請參閱第2(a)圖，該第一端310及第二端320之延 伸方向係爲平行。因此，爲使平行延伸之第一端3 1 0及第 二端320能延伸出該鐵芯座200a外，該兩個鐵芯座開口 220必須位於同一側壁上。 7 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) % . |線· 480500 A7 B7 五、發明說明（） 仍請參閱第2(a)圖，然後，形成一鐵芯蓋板400於該 鐵芯座200a及該扁平線圈300之上，並且使該扁平線圏300 之第一端310及第二端320可由該鐵芯座開口 220向外延伸 或露出以作爲該電感之兩接腳。其中，該鐵芯座200a及該 鐵芯蓋板400係共同作爲該電感之鐵芯（core)，且該鐵芯座 200a及鐵芯蓋板400的材質係爲鐵矽合金。 仍請參閱第2(a)圖，在將鐵芯座200a、扁平線圈300 及鐵芯蓋板400三者結合之後，更包含一形成電感接腳之步 驟：再將第一端310及第二端320朝向鐵芯座200a之底面 方向彎折後，將可形成一如第3(a)圖所示之電感100a。 本發明之第二實施例如第2(b)圖所示，至少包含鐵芯 座200b、扁平線圈300、鐵芯蓋板400以及側蓋500。形成 電感之方法至少包含下列步驟：首先，提供一如第2(b)圖 所示之鐵芯座200b，該鐵芯座200b具有一凹槽210及一 鐵芯座開口 220，且該鐵芯座開口 220係位於該鐵芯座 20 0b之側壁上。或者是說，該鐵芯座200b之外觀類似一 矩形盒狀物，具有一底面、四個側壁以及一可容納物件之 凹槽210，其中某一側壁上具有一個鐵芯座開口 220。 仍請參閱第2(b)圖，接著形成一扁平線圈300於該鐵 8 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) % --線· 經濟部智慧財產局員工消費合作社印製 ㈣5〇0480500 A7 B7 V. Description of the invention (5-1) Field of the invention: The present invention relates to an inductor and a method for forming the same, especially a vertical and horizontal dual-use inductor. 5-2 Background of the Invention: An inductor is one of the passive components often used in electrical products. However, in the pursuit of light, thin, short, and small electrical products, reducing the volume of the inductor while taking into account its electrical characteristics has always been a difficult problem to overcome. For example, although the size of the inductor is reduced, its DC resistance 値 is increased. In actual use of inductors, sometimes it is desired to use the inductors in an upright manner on a circuit board to reduce the projected area. However, it is not ideal to achieve it with a conventional inductor. The conventional inductor shown in Figure 1 10 as an example, which has a core 20 and a coil 30. The coil 30 is formed by winding the copper wire around the outer surface of the coil 20. Therefore, the projected area of the entire conventional inductor 10 is twice the projected area of the iron core 20 plus the cross-sectional area of the copper wire, that is, the projected area of the entire conventional inductor 10 must be larger than the projected area of the iron core 20. Still referring to Figure 1, this copper wire has a traditional circular cross section, so the wound coil will take up most of the volume of the inductor, and a circle and a circle will be formed in several layers of laminated coils The paper size is only applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling out this page)% Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs — _____ ^ — ____________: ____ a _______ 480500 A7 B7 i. Description of the invention () Product. When you want to reduce the volume and thickness of the inductor to reduce the projected area, if you try to reduce the cross-sectional area of the copper wire (for example, reduce the radius of the copper wire), you will encounter the problem of increased DC resistance 値, because the resistance and cross-sectional area Inversely proportional. This is one of the reasons why the size of the inductor cannot be reduced in the conventional technology. Therefore, how to reduce the volume or thickness of an inductor under a certain inductor 以 without increasing the DC resistance ， will be one of the issues that an inductor designer must face. 5_3 Purpose and description of the invention: The present invention discloses an inductor and a method for forming the same. In addition to being smaller and thinner than conventional inductors, the inductor of the present invention is more special and can be laid flat or upright on demand. Used on circuit boards. For example, when it is desired to reduce the thickness of an electrical device, the inductor of the present invention can be used lying flat on a circuit board; when the area of an electrical device is to be reduced, the inductor of the present invention can be used upright on a circuit board. A first embodiment of the present invention first provides a core base having a groove and two core base openings, and the core base opening is located on the same side wall of the core base; then, a flat wire is formed on the core base. In the groove of the iron core seat, and the flat wire has a first end and a second end, the extending directions of the first end and the second end are parallel, and the first end and the second end may be The core base opening extends or is exposed to form the two pins of the inductor; then, an iron core cover is formed on the flat wire and the core base, the core cover and the core base Commonly used as the core of the inductor. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the phonetic on the back? Matters before filling out this page) Line · Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 480500 A7 B7____ V. Description of the invention () (Please read the note 3 on the back before filling out this page) The second embodiment of the present invention first provides a core seat with a groove and a core seat opening, and the core seat opening is located at On the side wall of the iron core seat; then, a flat coil is formed in the groove of the iron core seat, and the flat wire has a first end and a second end, and the first end and the second end extend direction Are parallel, and the first end and the second end can be extended or exposed outward from the core core opening to form two pins of the inductor; then, an iron core cover is formed on the flat wire and the iron Above the core seat, the core cover plate and the core seat together serve as the core of the inductor; then, a side cover is formed on the core seat opening, the side cover has two side cover openings, and the The first end and the second end may extend outward from the side cover opening Or exposed to form the two pins of the inductor. Since the core seat opening of the core seat is located on the same side wall of the core seat, and the extending directions of the first end and the second end of the flat coil are parallel, the pins of the inductor of the present invention can be formed on the core. On the same side wall of the seat, and if necessary, decide whether to bend the pins toward the bottom surface of the core seat. If there is no bend, the inductor of the present invention can be used on a circuit board in an upright manner; if there is a bend, the inductor of the present invention can be used in a horizontal orientation on a circuit board. 5-4 Schematic Printed by Employee Cooperative of Intellectual Property Bureau of the Ministry of Economics: The preferred embodiment of the present invention will be explained in more detail in the following explanatory texts with the following figures: This paper scale applies Chinese national standards (CNS) A4 specification (210 X 297 mm) 480500 ΚΙ Β7 ____ 5. Description of the invention () Figure 1 is a conventional inductor. Figure 2 (a) is the explosion of the first embodiment of the inductor of the present invention. Figure 2 (b) is an exploded view of the second embodiment of the inductor of the present invention. Fig. 3 (a) is a schematic external view of a first embodiment of the inductor of the present invention. Fig. 3 (b) is a schematic external view of a second embodiment of the inductor of the present invention. Figure 4 is a schematic diagram of the inductor of the present invention used on a circuit board. (Please read the phonetic on the back? Matters before filling out this page.) Printed reference numbers for the printing of employee cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs: 100 inductors 200 a iron core holder 200b iron core holder 210 groove 220 iron core holder opening 300 flat Coil 310 First end 320 Second end 400 Iron core cover 500 Side cover 510 Side cover opening 600 Circuit board 5-5 Detailed description of the invention: This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 480500 A7 B7 5. Description of the invention () The present invention discloses an upright and horizontal lying dual-purpose inductor and a method for forming the same. As in the first embodiment shown in FIG. 2 (a), the ultra-thin upright inductor includes at least an iron core holder 200a, a flat coil 300, and an iron core cover plate 400. The method for forming the inductor includes at least the following steps. First, a core holder 200a as shown in FIG. 2 is provided. The core holder 200a has a groove 21 and two core holder openings 220. The two cores The core seat opening 220 is located on the same side wall of the core seat 200a. In other words, the appearance of the iron core seat 200a is similar to a rectangular box-shaped object, and has a bottom surface, four side walls, and a recess 21 0 for accommodating objects. One of the side walls has two iron core seats 220. Still referring to FIG. 2 (a), a flat coil 300 having a first end 310 and a second end 320 is formed in the groove 210 of the core holder 200a, and the first end of the flat coil 300 is formed. 3 10 and the second end 320 can be extended or exposed from the core opening 220 to serve as two pins of the inductor. The shape of the flat coil 300 closely meets the groove 210, so that the flat coil 300 can be formed (embedded) in the groove 210 with almost no gap. It should be noted that, because the flat coil 300 is not wound on the surface of the core, but is formed in the groove 210 of the core seat 200a, the paper size of this paper applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the notes on the back before filling out this page)%. Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 480500 A7 B7 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ) Obviously, the flat coil 300 can be made in advance and then combined with the core holder 200a; in other words, the production of the flat coil 300 and the core holder 200a can be performed at the same time, and it is not necessary to wind the core after it is obtained. (This must be the case), which can greatly help shorten the process time. Still referring to FIG. 2 (a), it should be noted that the flat coil 300 is formed by winding a thin layer of wire uniformly covered with an insulating layer and winding the coils in parallel at least one stack. The thin wire is an extremely flat and long strip-shaped thin sheet with a cross-section that is much larger than the height (thickness) of a rectangle (for example, a difference of 10 times) and has an upper surface and a lower surface. Almost flat on the lower surface, so the gap between the stacked turns can be minimized or almost eliminated. In addition, if the thickness of the thin wire is t and the number of windings is N, the thickness (height) of the flat coil 300 is approximately tN. In a preferred embodiment, the thickness and width of the thin wire are approximately 0.24 mm and 2.4 mm, respectively. However, the thickness and width of the thin wire are not limited and can be changed as needed. Still referring to FIG. 2 (a), the extending directions of the first end 310 and the second end 320 are parallel. Therefore, in order for the first end 3 10 and the second end 320 extending in parallel to extend out of the core holder 200a, the two core holder openings 220 must be located on the same side wall. 7 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling this page)%. | Line · 480500 A7 B7 V. Description of the invention () Still refer to Figure 2 (a). Then, an iron core cover plate 400 is formed on the iron core seat 200a and the flat coil 300, and the first end 310 and the second end 320 of the flat coil 300 can be made of the iron. The core opening 220 extends or is exposed to serve as two pins of the inductor. Wherein, the core holder 200a and the core cover 400 are used together as the core of the inductor, and the material of the core holder 200a and the core cover 400 is iron-silicon alloy. Still referring to FIG. 2 (a), after combining the three core holders 200a, the flat coil 300 and the core cover plate 400, it further includes a step of forming an inductance pin: the first end 310 and the second end After the end 320 is bent toward the bottom surface of the core seat 200a, an inductor 100a as shown in FIG. 3 (a) can be formed. As shown in FIG. 2 (b), a second embodiment of the present invention includes at least an iron core holder 200b, a flat coil 300, an iron core cover 400, and a side cover 500. The method for forming an inductor includes at least the following steps. First, a core holder 200b as shown in FIG. 2 (b) is provided. The core holder 200b has a groove 210 and a core holder opening 220, and the core The seat opening 220 is located on a side wall of the core seat 200b. In other words, the appearance of the core holder 200b is similar to a rectangular box-shaped object, which has a bottom surface, four side walls, and a recess 210 for accommodating objects. One of the side walls has a core holder opening 220. Still refer to Figure 2 (b), and then form a flat coil 300 on the iron 8 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling in this Page)%-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ㈣500
1、發明說明（） 芯座200b之該凹槽210中，並且使該扁平線圈300之第一 端3 10及第二端320可由該鐵芯座開口 220向外延伸或露出 以作爲該電感之兩接腳。此扁平線圈300與第一實施例所述 完全相同，因此與第一實施例相同是該扁平線圏300並非 捲繞於鐵芯之表面上，而是形成於鐵芯座200b之該凹槽 210中，所以明顯地該扁平線圈300可以預先製作好再將 其與鐵芯座200b結合；或者是說，該扁平線圏300該鐵芯 座200b之製作可以同時進行，而不需待得到鐵芯之後再繞 線（然習知必須如此），此點對於縮短製程時間有很大的助 益。 仍請參閱第2(b)圖，然後，形成一鐵芯蓋板400於該 鐵芯座200b及該扁平線圈300之上，並且使該扁平線圈300 之第一端3 10及第二端320可由該鐵芯座開口 220向外延伸 或露出以作爲該電感之兩接腳。其中，該鐵芯座200b及該 鐵芯蓋板400係共同作爲該電感之鐵芯（core)，且該鐵芯座 200a及鐵芯蓋板400的材質係爲鐵矽合金。 仍請參閱第2(b)圖，形成一側蓋500於該鐵芯座開口 220上，該側蓋500具有兩個鐵芯座開口 510，用以使該扁 平線圈300之第一端310及第二端320可由該鐵芯座開口 5 1 0向外延伸或露出。該側蓋500之面積等於或稍大於鐵芯 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) %- · 經濟部智慧財產局員工消費合作社印製 480500 A7 B7 五、發明說明（） 座200b之側壁面積與鐵芯蓋板400之側壁面積的合。該側 蓋5 00之材質爲絕緣物質，例如塑膠。該側蓋500可使該鐵 芯座200a及該鐵芯蓋板400之邊緣可以切齊，如此該電感 之邊緣可以非常平整。 仍請參閱第2(b)圖，在將鐵芯座200b、扁平線圈300、 鐵芯蓋板400及側蓋500結合之後，更包含一形成電感接腳 之步驟以形成一如第3(b)圖所示之電感100b，但此形成電 感接腳之步驟與第一實施例所述相同，因此不再贅述。 値得注意的是，由於本發明之電感l〇〇a或l〇〇b的接 腳並非針腳狀，所以電感l〇〇a或100b可以表面黏著技術 (surface mounting technology ; SMT)技術黏著於電路板 上，而不須以人工方式插件。並且，由於電感l〇〇a或l〇〇b 之兩接腳均位於該鐵芯座200a或200b之同一側壁，所以 電感100a或100b可以如第4圖所示直立地使用於一電路 板600上，圖中之元件100係表示電感l〇〇a或100b。換 言之，該電感l〇〇a或100b使用時所占之投影面積甚小； 或者是說，電感l〇〇a或100b別適用於面積必須較小之電 氣裝置中。 明顯地，在直立使用時本發明之電感l〇〇a或l〇〇b的 10 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) % -丨線- 經濟部智慧財產局員工消費合作社印製 480500 A7 一 __B7 五、發明說明（） 投影面積會遠小於相同電感値之習知電感，因爲本發明之 電感並不使用傳統的繞線方式來形成線圈，例如本發明之 線圈300的剖面並非圓形而是成一扁平狀；本發明之線圈 並非捲繞於鐵芯之外表面上，而是預先製作好再形成於鐵 芯座200a之中。因此，本發明之電感100a或100b的厚度 就是鐵芯座200a的厚度加上鐵芯蓋400的厚度，亦即電感 100 a或100b的厚度等於鐵芯（鐵芯座加上鐵芯蓋）的厚度， 然而習知整個電感的厚度通常會大於鐵芯的厚度。 在一較佳實施例中，當電感値介於〇 . 8〜2.0微亨利， 且在最大負載電流22安培及直流電阻2.5至4.3歐姆的要 求下，本發明之電感的厚度、長度及寬度分別約爲4mm、 1 2mm 及 1 2mm 〇 以上所述僅爲本發明之較佳實施例而已，並非用以限定 本發明之申請專利範圍；凡其它未脫離本發明所揭示之精神 下所完成之等效改變或修飾，例如薄片導線寬度及厚度之改 變，均應包含在下述之申請專利範圍內。 --------------^1 — (請先閱讀背面之注意事項再填寫本頁) · 線- 經濟部智慧財產局員工消費合作社印製 11 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）1. Description of the invention () In the groove 210 of the core seat 200b, and the first end 3 10 and the second end 320 of the flat coil 300 may be extended or exposed outward from the core seat opening 220 as the inductance Two pins. The flat coil 300 is exactly the same as that described in the first embodiment, so it is the same as the first embodiment. The flat coil 300 is not wound on the surface of the core, but is formed in the groove 210 of the core seat 200b. Therefore, it is obvious that the flat coil 300 can be made in advance and then combined with the core holder 200b; that is, the production of the flat wire coil 300 and the core holder 200b can be performed simultaneously without the need to obtain an iron core. Winding the wire later (but this must be the case), this will greatly help shorten the process time. Still referring to FIG. 2 (b), then, an iron core cover plate 400 is formed on the iron core seat 200b and the flat coil 300, and the first end 3 10 and the second end 320 of the flat coil 300 are formed. The core socket opening 220 can be extended or exposed to serve as two pins of the inductor. Wherein, the core base 200b and the core cover 400 are used together as the core of the inductor, and the material of the core base 200a and the core cover 400 is iron-silicon alloy. Still referring to FIG. 2 (b), a side cover 500 is formed on the core seat opening 220, and the side cover 500 has two core seat openings 510 for making the first end 310 of the flat coil 300 and The second end 320 may be extended or exposed outward from the core seat opening 5 10. The area of the side cover 500 is equal to or slightly larger than the iron core 9 This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)%-· Ministry of Economy Printed by the Intellectual Property Bureau employee consumer cooperative 480500 A7 B7 V. Description of the invention () The side wall area of the base 200b and the side wall area of the iron core cover plate 400 are combined. The material of the side cover 5 00 is an insulating material, such as plastic. The side cover 500 allows the edges of the core base 200a and the core cover 400 to be aligned so that the edges of the inductor can be very flat. Still referring to FIG. 2 (b), after combining the iron core seat 200b, the flat coil 300, the iron core cover 400, and the side cover 500, it further includes a step of forming an inductance pin to form as shown in FIG. 3 (b The inductor 100b shown in the figure, but the step of forming the inductor pin is the same as that described in the first embodiment, so it will not be described again. It should be noted that, since the pins of the inductor 100a or 100b of the present invention are not pin-shaped, the inductor 100a or 100b can be adhered to the circuit by surface mounting technology (SMT) technology Board, without having to plug in manually. In addition, since both pins of the inductor 100a or 100b are located on the same side wall of the core holder 200a or 200b, the inductor 100a or 100b can be used upright on a circuit board 600 as shown in FIG. 4 Above, the component 100 in the figure represents the inductor 100a or 100b. In other words, the projected area occupied by the inductor 100a or 100b is very small; in other words, the inductor 100a or 100b is not suitable for use in an electrical device that must have a small area. Obviously, the paper size of the inductor 100a or 100b of the present invention when used in upright mode is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (please read the precautions on the back first) (Fill in this page)%-丨 Line-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 480500 A7 __B7 V. Description of the invention () The projected area will be much smaller than the conventional inductance of the same inductance, because the inductance of the invention is not The traditional winding method is used to form the coil. For example, the cross section of the coil 300 of the present invention is not circular but is flat. Among the core seats 200a. Therefore, the thickness of the inductor 100a or 100b of the present invention is the thickness of the core holder 200a plus the thickness of the core cover 400, that is, the thickness of the inductor 100a or 100b is equal to the thickness of the core (the core holder plus the core cover). Thickness, however it is known that the thickness of the entire inductor is usually greater than the thickness of the core. In a preferred embodiment, when the inductance 値 is between 0.8 and 2.0 microhenry, and under the requirements of a maximum load current of 22 amps and a DC resistance of 2.5 to 4.3 ohms, the thickness, length and width of the inductor of the present invention are respectively Approximately 4mm, 12mm, and 12mm. The above descriptions are merely preferred embodiments of the present invention, and are not intended to limit the scope of patent application for the present invention; all others that are completed without departing from the spirit disclosed by the present invention, etc. Effective changes or modifications, such as changes in the width and thickness of thin-lead wires, should be included in the scope of patent applications described below. -------------- ^ 1 — (Please read the precautions on the back before filling out this page) · Line-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 11 This paper size is applicable to China Standard (CNS) A4 specification (210 X 297 mm)