TWI390559B - Transformer - Google Patents
Transformer Download PDFInfo
- Publication number
- TWI390559B TWI390559B TW98105788A TW98105788A TWI390559B TW I390559 B TWI390559 B TW I390559B TW 98105788 A TW98105788 A TW 98105788A TW 98105788 A TW98105788 A TW 98105788A TW I390559 B TWI390559 B TW I390559B
- Authority
- TW
- Taiwan
- Prior art keywords
- winding
- bobbin
- hole
- transformer
- hole portion
- Prior art date
Links
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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
- H01F27/325—Coil bobbins
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Description
本發明係有關一種用於各種電子/電氣機器等的小型的變壓器,尤其有關一種適合作為在使搭載於筆記型電腦與液晶電視等的各種顯示面板的背光用冷陰極放電燈(CCFL)放電、點燈的直流交流反相器(DC/AC inverter)電路中使用的反相器變壓器(inverter transformer)。The present invention relates to a small-sized transformer for use in various electronic/electrical devices and the like, and more particularly to a discharge of a cold cathode discharge lamp (CCFL) for backlights that is mounted on various display panels such as a notebook computer and a liquid crystal television. An inverter transformer used in a lighted DC/AC inverter circuit.
一般而言,在變壓器中,為了確保1次繞線及2次繞線此間的絕緣慌性而,因此要求在1次繞線與2次繞線之間確保一定距離以上的沿面距離(creepage distance)。In general, in the transformer, in order to ensure the insulation turbulence between the primary winding and the secondary winding, it is required to ensure a creepage distance above a certain distance between the primary winding and the secondary winding (creepage distance). ).
此種沿面距離之確保在大型的變壓器中雖然不會造成問題,但對於用於逐年小型化的電子機器、筆記型電腦等的變壓器而言,變壓器本體的小型化的要求亦相當嚴峻,因此要兼具沿面距離之確保與小型化兩者便成為重要的課題。This kind of creeping distance is not a problem in a large-scale transformer. However, for transformers such as electronic equipment and notebook computers that are used for miniaturization every year, the requirements for miniaturization of the transformer main body are also severe. Both the securing and miniaturization of the creeping distance have become important issues.
習知技術中,就為了解決上述課題而提案的變化器而言,已知有下列專利文獻1所記載者。該專利文獻1記載的變壓器係將具有捲繞1次繞線的第1繞線部之第1繞線管(bobbin)及具有捲繞2次繞線的第2繞線部之第2繞線管以同軸的方式配置者,而作成為於第1繞線部的軸線方向另一端側設有筒狀的收納部,並且於該收納部插入捲繞有2次繞線的第2繞線部。In the conventionally proposed variator proposed to solve the above problems, the following Patent Document 1 is known. The transformer described in Patent Document 1 has a first bobbin having a first winding portion wound once, and a second bobbin having a second winding portion wound twice. The tube is disposed coaxially, and a cylindrical housing portion is provided on the other end side in the axial direction of the first winding portion, and the second winding portion in which the winding is wound twice is inserted in the housing portion. .
專利文獻1:日本特開2007-173359號公報Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-173359
上述專利文獻1所記載的變壓器係將捲繞2次繞線的第2繞線部插入於設在第1繞線筒的收納部內,相較於單純將1次繞線與2次繞線以同軸的方式配置者,能額外確保收納部側面的長度量的沿面距離,也能藉此將1次繞線與2次繞線沿著軸線方向彼此接近地配置,因此,能謀求軸線方向的長度的短縮化,然而,由於為2次繞線由收納部所包覆的構成,而產生如下的問題。In the transformer described in Patent Document 1, the second winding portion that is wound twice is inserted into the housing portion provided in the first bobbin, and the winding is performed once and twice. In the coaxial arrangement, the creeping distance of the length of the side surface of the accommodating portion can be additionally ensured, and the primary winding and the secondary winding can be arranged close to each other in the axial direction. Therefore, the length in the axial direction can be obtained. However, since the winding is covered by the accommodating portion for the secondary winding, the following problems occur.
亦即,近年來大多是將供給至一般家庭的電壓(日本為AC100V)直接輸入至1次繞線,當為了將此種供給電壓降壓而使用變壓器時,於2次繞線有大電流產生,因此將2次繞線由收納部所包覆的上述構成難以將在2次繞線產生的熱釋放至外部。In other words, in recent years, the voltage supplied to the general household (AC100V in Japan) is directly input to the primary winding. When the transformer is used to step down the supply voltage, a large current is generated in the secondary winding. Therefore, it is difficult to release the heat generated in the secondary winding to the outside by the above-described configuration in which the secondary winding is covered by the accommodating portion.
另一方面,當考慮散熱性時,較佳為不僅對於2次繞線且對於1次繞線也採用周圍不受包覆的構成,而在單純將1次繞線與2次繞線以同軸的方式配置的情形中,為了確保一定的沿面距離,必須將1次繞線與2次繞線沿著軸線方向互相遠離配置,因而產生變壓器整體的軸線方向的長度增長之問題。此外,一般而言,在1次繞線與2次繞線之間的距離變長時,兩者的耦合會變差,而使得變壓器的轉換效率降低。On the other hand, when heat dissipation is considered, it is preferable to adopt a configuration in which not only the secondary winding but also the primary winding is not covered, but the primary winding and the secondary winding are coaxial. In the case of the arrangement of the mode, in order to secure a certain creeping distance, it is necessary to arrange the primary winding and the secondary winding away from each other in the axial direction, thereby causing a problem that the length of the entire axial direction of the transformer increases. Further, in general, when the distance between the primary winding and the secondary winding becomes long, the coupling between the two becomes poor, and the conversion efficiency of the transformer is lowered.
本發明乃鑒於上述情事而研創者,其目的在於提供一種既確保彼此以同軸的方式配置的1次繞線與2次繞線之間的沿面距離,又能將變壓器整體的軸線方向的長度短縮,且散熱性優異的變壓器。The present invention has been made in view of the above circumstances, and an object thereof is to provide a creeping distance between a primary winding and a secondary winding which are disposed coaxially with each other, and which can shorten the length of the entire axial direction of the transformer. And a transformer with excellent heat dissipation.
為了達成上述目的,本發明的變壓器係構成如下。In order to achieve the above object, the transformer of the present invention is constructed as follows.
亦即,本發明的變壓器係具備:第1繞線;與該第1繞線電磁耦合之第2繞線;具有捲繞前述第1繞線的第1捲繞部及貫穿該第1捲繞部的內部的第1貫穿孔之第1繞線管;具有捲繞前述第2繞線的第2捲繞部及貫穿該第2捲繞部的內部的第2貫穿孔之第2繞線管;以及,插通於前述第1貫穿孔及前述第2貫穿孔內之鐵心;且構成為使前述第1繞線管與前述第2繞線管配置成同軸;其中,That is, the transformer of the present invention includes: a first winding; a second winding electromagnetically coupled to the first winding; and a first winding portion that winds the first winding and penetrates the first winding a first bobbin of the first through hole inside the portion; a second bobbin having a second winding portion that winds the second winding and a second through hole that penetrates the inside of the second winding portion And a core inserted into the first through hole and the second through hole; and configured to arrange the first bobbin and the second bobbin coaxially;
前述第1繞線管係具備自前述第1捲繞部的軸線方向一端部朝前述第2繞線管延伸而於內部有供前述鐵心插通的中空的延伸部;The first bobbin includes a hollow extending portion extending from one end portion of the first winding portion in the axial direction toward the second bobbin and having the iron core inserted therein;
前述第2繞線管的前述第2貫穿孔係於該第2貫穿孔的軸線方向一端部具備供前述延伸部插入的插入口,並且將自該插入口朝該第2貫穿孔的軸線方向另一端部延伸的一定範圍的部分形成為大孔部,且該大孔部係形成為具有能在與自前述插入口插入的前述延伸部的外周面之間沿著全周確保一定的空氣間隔之大小。The second through hole of the second bobbin includes an insertion port into which the extending portion is inserted at one end portion of the second through hole in the axial direction, and the insertion hole is oriented in the axial direction of the second through hole. A certain range of portions extending at one end portion is formed as a large hole portion, and the large hole portion is formed to have a certain air gap along the entire circumference between the outer peripheral surface of the extending portion inserted from the insertion port. size.
在本發明的變壓器中,可作成為前述第2繞線管係具備用以將前述第2捲繞部分割成複數個捲繞區域的分隔突緣而成。In the transformer of the present invention, the second bobbin may be provided with a partition flange for dividing the second winding portion into a plurality of winding regions.
此外,可作成為在前述第2繞線管的前述第2貫穿孔之前述軸線方向另一端部側的部分係形成為比前述大孔部還小之大小且能夠使前述鐵心插通之大小的小孔部,並且,該小孔部與前述大孔部之間的部分係形成為該大孔部及該小孔部之中間之大小且能夠與前述延伸部嵌合之大小的中孔部。Further, a portion of the second through hole in the axial direction on the other end side of the second bobbin may be formed to be smaller than the large hole portion and to be able to insert the core. a small hole portion, and a portion between the small hole portion and the large hole portion is formed as a middle hole portion having a size that fits between the large hole portion and the small hole portion and is engageable with the extending portion.
在本發明中雖然係將上述第1繞線作為1次繞線、將上述第2繞線作為2次繞線,但亦可反過來將上述第1繞線作為2次繞線、將上述第2繞線作為1次繞線。In the present invention, the first winding is used as the primary winding, and the second winding is used as the secondary winding. Alternatively, the first winding may be used as the secondary winding, and the first winding may be used. 2 winding as a winding.
此外,本發明的變壓器係具備:捲繞輸入側的繞線之第1繞線管;捲繞輸出側的繞線之第2繞線管;以及插通於以同軸的方式配置的前述第1繞線管的貫穿孔及前述第2繞線管的貫穿孔的內部之鐵心;其中,Further, the transformer of the present invention includes: a first bobbin that winds the winding on the input side; a second bobbin that winds the winding on the output side; and the first one that is inserted coaxially a through hole of the bobbin and an inner core of the through hole of the second bobbin; wherein
前述第1繞線管及前述第2繞線管之中的一方的繞線管係於與另一方的繞線管接觸之側具有延伸部;One of the first bobbin and the second bobbin has an extension on a side in contact with the other bobbin;
於前述另一方的繞線管的貫穿孔的一端係設有供前述延伸部插入的插入口;One end of the through hole of the other bobbin is provided with an insertion port for inserting the extension portion;
而前述另一方的繞線管的貫穿孔的內周與前述延伸部的外周係彼此隔有一定的距離。The inner circumference of the through hole of the other bobbin and the outer circumference of the extending portion are spaced apart from each other by a certain distance.
此時,可作成為前述第2繞線管係具備用以將捲繞前述輸出側的繞線的區域分割成複數個的分隔突緣而成。In this case, the second bobbin may be provided with a plurality of partitioning flanges for dividing a region around which the winding on the output side is wound.
此外,亦可作成為在前述另一方的繞線管的貫穿孔之中,前述插入口之側的部分係形成為能與前述延伸部的外周隔有一定的距離之大小的大孔部,前述插入口的相反側的部分為比前述大孔部還小之大小且形成為能供前述鐵心插通之大小的小孔部,而該小孔部與前述大孔部之間的部分係形成為該大孔部及該小孔部中間的大小且能與前述延伸部嵌合之大小的中孔部。Further, in the through hole of the other bobbin, the portion on the side of the insertion port may be formed as a large hole portion that can be separated from the outer circumference of the extending portion by a predetermined distance. a portion on the opposite side of the insertion port is smaller than the large hole portion and is formed in a small hole portion that can be inserted into the core, and a portion between the small hole portion and the large hole portion is formed as The large hole portion and the intermediate hole portion of the size of the small hole portion and capable of being fitted to the extending portion.
藉由採用上述構成,本發明的變壓器係達到以下的作用效果。According to the above configuration, the transformer of the present invention achieves the following effects.
亦即,構成為將第1繞線管中自第1捲繞部的軸線方向一端部延伸的中空的延伸部自第2繞線管之設置在第2貫穿孔的軸線方向一端部的插入口插入於大孔部內,且於插入的延伸部的外周面與大孔部之間係沿著全周確保有一定的空氣間隔,藉此,在沿面距離方面,相較於單純將第1繞線管與第2繞線管以同軸的方式配置者,能在捲繞於第1捲繞部的第1繞線與捲繞於第2捲繞部的第2繞線之間確保至少大孔部的軸線方向的長度的來回距離之量。In other words, the hollow extending portion extending from the one end portion of the first winding portion in the axial direction of the first bobbin is inserted from the second bobbin at the one end portion of the second through hole in the axial direction. Inserted in the large hole portion, and a certain air gap is ensured along the entire circumference between the outer peripheral surface of the inserted extending portion and the large hole portion, whereby the first winding is simpler than the first surface When the tube and the second bobbin are disposed coaxially, at least a large hole portion can be secured between the first winding wound around the first winding portion and the second winding wound around the second winding portion. The amount of back and forth distance of the length of the axis direction.
因此,既於第1及第2繞線間確保一定的沿面距離,又能將第1繞線與第2繞線沿著軸線方向彼此接近地配置,因此,變壓器整體的軸線方向的長度便能短縮。Therefore, since a certain creeping distance is ensured between the first and second windings, and the first winding and the second winding can be arranged close to each other in the axial direction, the length of the entire axial direction of the transformer can be Shortened.
此外,插入於大孔部內者為自第1捲繞部的軸線方向一端部延伸的延伸部,而第1捲繞部係不插入於大孔部內的構成,因此,相較於採用將第1繞線插入於大孔部內的構成者,捲繞於第1捲繞部的第1繞線的散熱性優異,且由於亦未有包覆捲繞於第2捲繞部的第2繞線的周圍之包覆物,因此第2繞線的散熱性亦同樣優異。Further, since the one inserted into the large hole portion is an extending portion extending from one end portion of the first winding portion in the axial direction, and the first winding portion is not inserted into the large hole portion, the first one is used as compared with the first hole portion. When the winding is inserted into the large-hole portion, the first winding wound around the first winding portion is excellent in heat dissipation and does not cover the second winding wound around the second winding portion. Since the surrounding wrap is applied, the heat dissipation of the second winding is also excellent.
以下,針對本發明的變壓器的實施形態,參照各個附圖詳地進行說明。第1圖至第4圖係顯示本發明的變壓器的第1實施形態,而第5圖及第6圖係顯示本發明的變壓器的第2實施形態。其中,在第1圖至第4圖中,為了使這些附圖圖面間的方向之對應關係清楚附註由正交的X、Y、Z三軸所構成的3次元座標系統,同樣地,在第5圖至第6圖中,為了使兩附圖圖面間的方向之對應關係清楚而附註由正交的X’、Y’、Z’三軸所構成的3次元座標系統。Hereinafter, embodiments of the transformer of the present invention will be described in detail with reference to the accompanying drawings. Figs. 1 to 4 show a first embodiment of the transformer of the present invention, and Figs. 5 and 6 show a second embodiment of the transformer of the present invention. In the first to fourth figures, in order to clearly distinguish the correspondence between the directions of the drawings, the three-dimensional coordinate system composed of three orthogonal X, Y, and Z axes is similarly In the fifth to sixth figures, in order to make the correspondence between the directions between the two drawings clear, a three-dimensional coordinate system composed of three orthogonal X', Y', and Z' axes is attached.
(第1實施形態)(First embodiment)
首先,利用第1圖至第4圖,針對本發明的第1實施形態的變壓器進行說明。第1圖係顯示本發明的第1實施形態的變壓器的整體構成的正面圖,第2圖係該變壓器的分解斜視圖。此外,第3圖係第1圖的A-A線剖面圖,第4圖係第3圖所示剖面圖的分解圖。First, a transformer according to a first embodiment of the present invention will be described with reference to Figs. 1 to 4 . Fig. 1 is a front elevational view showing the overall configuration of a transformer according to a first embodiment of the present invention, and Fig. 2 is an exploded perspective view showing the transformer. 3 is a cross-sectional view taken along line A-A of FIG. 1, and FIG. 4 is an exploded view of a cross-sectional view shown in FIG. 3.
本實施形態的變壓器1為例如在使筆記型電腦、液晶電視等所使用的各種顯示面板的背光用冷陰極放電燈(CCFL)放電、點亮的直流交流反相器電路中作為反相器變壓器而使用者,或作為以絕緣和變壓為目的而使用的變壓器而使用者,如第1圖所示,係具備以下部分而成:第1繞線2(於第1圖僅顯示一部分)、與該第1繞線2電磁耦合的第2繞線3(於第1圖僅顯示一部分)、以塑膠等具有絕緣性的材料所形成的繞線管單元(bobbin unit)4、以鐵酸鹽(ferrite)等磁性材料所形成的鐵心5A、5B、以及端子6A至6G。在本實施形態中,上述第1繞線2係作為1次繞線,上述第2繞線3係作為2次繞線。此外,上述繞線管單元4係由彼此以同軸的方式配置而組合的第1繞線管10及第2繞線管20所構成。The transformer 1 of the present embodiment is used as an inverter transformer in a DC-AC inverter circuit that discharges and illuminates a backlight for a cold cathode discharge lamp (CCFL) of various display panels used in a notebook computer or a liquid crystal television. The user, or a transformer used for the purpose of insulation and voltage transformation, as shown in Fig. 1, has the following components: the first winding 2 (only a part is shown in Fig. 1), a second winding 3 (only a part of which is shown in Fig. 1) electromagnetically coupled to the first winding 2, a bobbin unit 4 made of an insulating material such as plastic, and a ferrite The cores 5A, 5B and the terminals 6A to 6G formed of a magnetic material such as ferrite. In the present embodiment, the first winding 2 is used as a primary winding, and the second winding 3 is used as a secondary winding. Further, the bobbin unit 4 is composed of a first bobbin 10 and a second bobbin 20 which are disposed coaxially with each other.
上述第1繞線管10係具備捲繞第1繞線2的第1捲繞部11、貫穿該第1捲繞部11內部的第1貫穿孔12(參照第2圖、第4圖)、自第1捲繞部11的軸線C1 方向一端部朝上述第2繞線管20延伸的中空的延伸部13(中空部分係藉由第1貫穿孔12而形成)、及形成於第1捲繞部11的軸線C1 方向另一端部的端子台14,且於該端子台14係保持有1次側用的端子6A至6C。此外,於第1捲繞部11的軸線C1 方向兩端部係分別形成有端突緣15A、15B,而於這些端突緣15A、15B之間捲繞1次繞線2(參照第1圖)。The first bobbin 10 includes a first winding portion 11 that winds the first winding 2 and a first through hole 12 that penetrates the inside of the first winding portion 11 (see FIGS. 2 and 4). a hollow extension extending direction of the axis C 1 of the first end portion of the winding portion 11 toward the second bobbin 20 13 (hollow portion is formed by a first line through hole 12) from, and is formed in volume 1 terminal base portion 11 about an axis C of the other end portion of the direction 14, and based on the terminal block 14 is held by the primary-side terminals 6A to 6C. Further, both end portions in the axis line C direction of the first winding portion 11 are respectively formed with end flanges 15A, 15B, and these end lugs 15A, 15B between the primary winding 2 is wound (refer to FIG.1 Figure).
另一方面,上述第2繞線管20係具備捲繞第2繞線3的第2捲繞部21、貫穿該第2捲繞部21內部的第2貫穿孔22(參照第2圖、第4圖)、及分別形成於第2捲繞部21的軸線C1 方向兩端部的端子台23A、23B,且於這些端子台23A及23B係分別保持有2次側用的端子6D、6E及6F、6G。此外,於第2捲繞部21係於該軸線C2 方向兩端部分別形成有端突緣24A、24B,並且於這些端突緣21A、21B之間形成有用以將該第2捲繞部21分割成複數個(在本實施形態為3個)捲繞區域S1 至S3 的分隔突緣25A、25B,而於各捲繞區域S1 至S3 捲繞2次繞線3(參照第1圖)。其中,於分隔突緣25A及25B係分別形成有用以將2次繞線3跨至相鄰的捲繞區域的缺口部26A、26B及26C、26D,且於端突緣24B係形成有用以藉由目視確認捲繞於捲繞區域S3 的第2繞線3的高度是否超過捲繞區域S2 的底面的高度的缺口部26E。On the other hand, the second bobbin 20 includes a second winding portion 21 that winds the second winding 3 and a second through hole 22 that penetrates the inside of the second winding portion 21 (see FIG. 2 and FIG. FIG. 4), and are formed in the second terminal block 23A in the axis C direction both end portions of the winding portion 21, 23B, and these terminals 23A and 23B based units are held terminal 6D secondary side with, 6E And 6F, 6G. Further, the second winding portion 21 is formed with end flanges 24A and 24B at both end portions in the direction of the axis C 2 , and is formed between the end flanges 21A and 21B to form the second winding portion. 21 is divided into a plurality of (in this embodiment three) spacer region S winding flange 25A, 25B 1 to S 3, and S in each winding area. 1 to S 3 is wound secondary winding 3 (see Figure 1). Wherein, the partition flanges 25A and 25B are respectively formed with the notch portions 26A, 26B and 26C, 26D for traversing the secondary winding 3 to the adjacent winding region, and the end flange 24B is formed to be useful. It is visually confirmed whether or not the height of the second winding 3 wound around the winding region S 3 exceeds the height of the bottom surface of the winding region S 2 .
如第2圖所示,上述鐵心5A係形成為具備兩個腳部51A、52A的U字形,且兩個腳部51A、52A之中的一方的腳部51A係自上述軸線C1 方向另一端部側(形成有上述端子台14之側)插通於上述第1繞線管10的第1貫穿孔12內。另一方面,上述鐵心5B係形成為與鐵心5A相同的形狀,且兩個腳部51B、52B之中的一方的腳部51B係自上述軸線C2 方向另一端部側(形成有上述端子台23B之側)插通於上述第2繞線管20的第2貫穿孔22內。另外,鐵心5A的腳部52A與鐵心5B的腳部52B,彼此的前端部係在繞線管單元4的外部相抵碰。As shown in FIG. 2, lines of the core 5A is formed in a U shape with two legs 51A, 52A, and 51A and two legs, the other end of the line from the leg portion 51A in the axial direction of one of C 1 among 52A The portion side (the side on which the terminal block 14 is formed) is inserted into the first through hole 12 of the first bobbin 10 . On the other hand, the core 5B is formed in the same shape as the core 5A, and one leg portion 51B of the two leg portions 51B and 52B is on the other end side from the axis C 2 direction (the above terminal block is formed). The side of 23B is inserted into the second through hole 22 of the second bobbin 20 described above. Further, the leg portions 52A of the core 5A and the leg portions 52B of the core 5B are in contact with each other at the front end portion of the bobbin unit 4.
以下,針對本實施形態的特徵性構成與其作用進行說明。Hereinafter, the characteristic configuration of the present embodiment and its action will be described.
上述第2繞線管20的第2貫穿孔22係於該第2貫穿孔22的軸線(第2捲繞部21的軸線C2 )方向一端部(第1繞線管10側的端部)具備有供上述第1繞線管10的延伸部13插入的插入口27,並且自該插入口27朝上述軸線C2 方向另一端部依序具備有大孔部28L、中孔部28M及小孔部28S(且任一者的與軸線C2 垂直的剖面形狀皆為矩形狀)(參照第4圖)。The second through hole 22 of the second bobbin 20 is one end portion (end portion on the first bobbin 10 side) in the direction of the axis of the second through hole 22 (the axis C 2 of the second winding portion 21). An insertion port 27 into which the extension portion 13 of the first bobbin 10 is inserted is provided, and the other end portion of the insertion port 27 in the direction of the axis C 2 is sequentially provided with a large hole portion 28L, a middle hole portion 28M, and a small portion. The hole portion 28S (and any of the cross-sectional shapes perpendicular to the axis C 2 is rectangular) (see Fig. 4).
上述大孔部28L係形成於自插入口27朝上述軸線C2 方向另一端部延伸的一定範圍(在本實施形態中為第3圖中所示長度d1 的範圍)的部分,且形成為具有能在與自插入口27插入的第1繞線管10的延伸部13的外周面之間沿著全周確保一定的空氣間隔(在本實施形態中為第3圖中所示長度d2 的空間間隔)之大小。The large-hole portion 28L is formed in a portion extending from the insertion port 27 toward the other end portion in the direction of the axis C 2 (in the present embodiment, the range of the length d 1 shown in FIG. 3), and is formed as It is possible to ensure a constant air gap along the entire circumference between the outer peripheral surface of the extending portion 13 of the first bobbin 10 inserted from the insertion port 27 (in the present embodiment, the length d 2 shown in FIG. 3 ) The size of the space interval).
另一方面,上述小孔部28S係形成於上述軸線C2 方向另一端部側的部分,大小比上述大孔部28L還小,且形成為具有能使上述鐵心5B的腳部51B插通之大小。此外,上述中孔部28M係形成於上述大孔部28L與上述小孔部28S之間的部分,其大小在大孔部28L及小孔部28S中間,且形成為具有能與上述延伸部嵌合之大小。Meanwhile, the small hole portion 28S is formed in the portion of the axis line C of the other end side of the second direction, smaller than the size of the large hole portion 28L, and can be formed to have the leg portion 51B of the core 5B of the inserted size. Further, the intermediate hole portion 28M is formed in a portion between the large hole portion 28L and the small hole portion 28S, and has a size between the large hole portion 28L and the small hole portion 28S, and is formed to be capable of being embedded with the extension portion. The size of the combination.
藉由如上述構成上述第2貫穿孔22,使上述延伸部13的前端部與上述中孔部28M嵌合,藉此而使上述第1繞線管10保持於上述第2繞線管20(參照第3圖)。在該保持狀態下,於延伸部13的外周面與大孔部28L之間係如上述沿著全周確保有長度d2 的空氣間隔。因此,在沿面距離方面,與構成為在上述第2貫穿孔22的插通孔27的位置使延伸部13與第2繞線管20彼此接觸者相比,能在捲繞於上述捲繞第1捲繞部11的第1繞線2與捲繞於上述第2捲繞部21的第2繞線3之間確保至少大孔部28L的上述軸線C2 方向的長度d1 的來回距離量+長度d2 的空氣間隔的距離量。因此,既於第1及第2繞線2、3間確保一定的沿面距離,又能將第1繞線2與第2繞線3沿著軸線C1 、C2 方向彼此接近地配置,因此,變壓器1整體的上述軸線C1 、C2 方向的長度便能夠短縮化,而能將變壓器1整體予以小型化,並且能使第1繞線2與第2繞線3具有良好的耦合。By forming the second through hole 22 as described above, the distal end portion of the extending portion 13 is fitted into the intermediate hole portion 28M, whereby the first bobbin 10 is held by the second bobbin 20 ( Refer to Figure 3). In this holding state, an air gap having a length d 2 is ensured along the entire circumference as described above between the outer peripheral surface of the extending portion 13 and the large hole portion 28L. Therefore, in the creeping distance, the winding portion can be wound around the winding portion 27 at a position where the extending portion 13 and the second bobbin 20 are in contact with each other at the position of the insertion hole 27 of the second through hole 22. The distance between the first winding 2 of the winding portion 11 and the second winding 3 wound around the second winding portion 21 is ensured by at least the distance d 1 of the length d 1 of the large hole portion 28L in the direction of the axis C 2 . + The amount of distance of the air interval of length d 2 . Therefore, the first winding 2 and the second winding 3 can be arranged close to each other in the directions of the axes C 1 and C 2 while ensuring a constant creeping distance between the first and second windings 2 and 3, transformer 1 the entire axis C 1, C 2 longitudinal direction of shortening it is possible, and can be a whole size of a transformer, and enable the first wire 2 and the second wire 3 has a good coupling.
此外,插入於上述大孔部28L內者係為不捲繞第1繞線2的延伸部13,而第1捲繞部11係設計成為不插入於大孔部28L內的構成。因此,相較於將第1捲繞部11插入於大孔部28L內的構成,捲繞於第1捲繞部11的第1繞線2的散熱性優異,且由於亦未有包覆捲繞於第2捲繞部21的第2繞線3的周圍之包覆物,因此第2繞線3的散熱性亦同樣優異。Further, the insertion into the large hole portion 28L is such that the extension portion 13 of the first winding 2 is not wound, and the first winding portion 11 is designed not to be inserted into the large hole portion 28L. Therefore, compared with the configuration in which the first winding portion 11 is inserted into the large hole portion 28L, the first winding 2 wound around the first winding portion 11 is excellent in heat dissipation property, and since it is not covered Since the coating around the second winding 3 of the second winding portion 21 is wound, the heat dissipation property of the second winding 3 is also excellent.
此外,如第3圖所示,上述第2繞線管20中,由上述的端突緣24A、24B及分隔突緣25A、25B所形成的3個捲繞區域S1 至S3 的沿著上述軸線C2 的各剖面的(圖中以x來表示)面積係以彼此相等的方式形成。亦即,係構成為各捲繞區域S1 至S3 的寬度(軸線C2 方向的長度)係依捲繞區域S1 、S2 、S3 的順序而依序變小,相反地,各捲繞區域S1 至S3 的深度(與軸線C2 垂直的方向的長度)則依捲繞區域S1 、S2 、S3 的順序而依序變大。Furthermore, as shown in FIG. 3, in the second bobbin 20, by the end flange. 24A, 24B and three spaced single coil region of the flange 25A, 25B is formed along the S 1 to S 3 of The area of each cross section of the above-described axis C 2 (indicated by x in the drawing) is formed to be equal to each other. That is, the system is configured to width (the direction of the longitudinal axis C 2) each of the winding regions S 1 to S 3 lines by winding area S 1, S 2, S 3 being the order of sequentially becomes smaller, and conversely, each The depths of the winding regions S 1 to S 3 (the lengths in the direction perpendicular to the axis C 2 ) are sequentially increased in the order of the winding regions S 1 , S 2 , and S 3 .
藉此,由於能使各捲繞區域S1 至S3 中的2次繞線3 的捲繞量彼此相等,因此在各捲繞領域S1 至S3 間的絕緣性的確保變得容易的同時,能兼顧第2捲繞部21的長度(軸線C2 方向的長度)與高度(在第3圖中與軸線C2 垂直的方向的長度)的平衡(例如,依據本實施形態,若將捲繞範圍S1 的寬度變小、將深度變大,則第2捲繞部21的長度變小而高度變大),與使第2捲繞部21小型化,結果可謀求變壓器1整體的小型化(包括低背化)。Accordingly, since the winding area S 2 can each secondary winding wound in an amount of 3 to S 31 are equal to each other, each of the field winding S 1 to S 3 ensure insulating property becomes easy to At the same time, the balance between the length of the second winding portion 21 (the length in the direction of the axis C 2 ) and the height (the length in the direction perpendicular to the axis C 2 in FIG. 3 ) can be achieved (for example, according to the present embodiment, When the width of the winding range S 1 is small, the length of the second winding portion 21 is reduced and the height is increased, and the second winding portion 21 is miniaturized, and as a result, the entire transformer 1 can be obtained. Miniaturization (including low-profile).
(第2實施形態)(Second embodiment)
接著,利用第5圖、第6圖說明本發明之第2實施形態的變壓器。第5圖係顯示第2實施形態的變壓器的整體構成的正面圖,第6圖係用於該變壓器的鐵心及保持帶的斜視圖。其中,省略了第1及第2繞線的圖示。Next, a transformer according to a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. Fig. 5 is a front view showing the overall configuration of a transformer according to a second embodiment, and Fig. 6 is a perspective view showing a core and a holding belt of the transformer. Here, the illustration of the first and second windings is omitted.
本實施形態的變壓器7係為與上述變壓器1同樣地作為反相器變壓器等而使用者,其基本構成係如第5圖所示,係為使第1圖至第4圖所示的變壓器1的繞線管單元4並排而配置的二合一(2 in 1)型者。因此,為了避免重複,與繞線管4相關部分標註與在第1圖至第4圖中所使用者相同的編號並省略其詳細說明,在以下說明中係僅針對鐵心8A、8B與保持帶9進行說明。The transformer 7 of the present embodiment is used as an inverter transformer or the like in the same manner as the above-described transformer 1. The basic configuration is as shown in Fig. 5, and the transformer 1 shown in Figs. 1 to 4 is used. The two-in-one (2 in 1) type of the bobbin unit 4 is arranged side by side. Therefore, in order to avoid repetition, the parts related to the bobbin 4 are denoted by the same reference numerals as those of the users in FIGS. 1 to 4, and detailed description thereof will be omitted. In the following description, only the cores 8A, 8B and the holding band are used. 9 for explanation.
如第6圖所示,上述鐵心8A係為具備兩個外腳部81A、82A與一個中腳部83A的E字型者,兩個外腳部81A、82A之中的一方的外腳部81A配置於第5圖所示的兩個繞線管單元4之中位在圖中右側的繞線管單元4的第1繞線管10內,另一方的外腳部82A則配置於位在圖中左側的繞線管單元4的第1繞線管10內。另一方面,上述鐵心8B係形成為與鐵心8A相同形狀,兩個外腳部81B、82B之中的一方的外腳部81B配置於第5圖所示的兩個繞線管單元4之中位在圖中右側的繞線管單元4的第2繞線管20內,另一方的外腳部82A則配置於位在圖中左側的繞線管單元4的第2繞線管20內。另外,鐵心8A的中腳部83A與鐵心8B的中腳部83B彼此的前端部係在兩個繞線管單元4之間相抵碰。As shown in Fig. 6, the core 8A is an E-shaped type having two outer leg portions 81A and 82A and one middle leg portion 83A, and one of the outer leg portions 81A and 82A is an outer leg portion 81A. The two bobbin units 4 shown in Fig. 5 are placed in the first bobbin 10 of the bobbin unit 4 on the right side in the drawing, and the other outer leg portion 82A is placed in the figure. In the first bobbin 10 of the bobbin unit 4 on the left side. On the other hand, the core 8B is formed in the same shape as the core 8A, and one of the outer leg portions 81B and 82B is disposed in the two bobbin units 4 shown in FIG. The other outer leg portion 82A is placed in the second bobbin 20 of the bobbin unit 4 on the right side in the figure, and is disposed in the second bobbin 20 of the bobbin unit 4 on the left side in the drawing. Further, the front end portions of the intermediate leg portion 83A of the core 8A and the intermediate leg portion 83B of the core 8B are in contact with each other between the two bobbin units 4.
另一方面,上述保持帶9係如第6圖所示,由基部91及形成於該基部91的圖中下側之面的4個爪部92A至92D所構成,並以藉由兩個爪部92A、92B夾持的方式保持第5圖所示的兩個繞線管單元4之中位於圖中左側的繞線管單元4的第1繞線管10,並以藉由兩個爪部92C、92D夾持的方式保持位於圖中右側的繞線管單元4的第1繞線管10。藉由安裝該保持帶9,能將兩個繞線管單元4之間的距離保持為一定,而能使裝設變壓器7於未圖示的基板等時的作業性提升。On the other hand, as shown in Fig. 6, the holding belt 9 is composed of a base portion 91 and four claw portions 92A to 92D formed on the lower surface of the base portion 91, and is formed by two claws. The portions 92A, 92B are held in a manner to hold the first bobbin 10 of the bobbin unit 4 located on the left side in the drawing among the two bobbin units 4 shown in Fig. 5, and by the two claw portions The 92C and 92D are held in a manner to hold the first bobbin 10 of the bobbin unit 4 on the right side in the drawing. By attaching the holding tape 9, the distance between the two bobbin units 4 can be kept constant, and the workability when the transformer 7 is mounted on a substrate or the like (not shown) can be improved.
以上,雖然說明了本發明的變壓器的實施形態,但本發明並非限定於上述態樣,能作各種態樣之改變。Although the embodiment of the transformer of the present invention has been described above, the present invention is not limited to the above-described aspects, and various changes can be made.
例如,雖然在上述的實施形態中係將上述第1繞線2作為1次繞線、將上述第2繞線3作為2次繞線,但亦可反過來將上述第1繞線2作為2次繞線、將上述第2繞線3作為1次繞線。For example, in the above-described embodiment, the first winding 2 is wound once and the second winding 3 is wound twice, but the first winding 2 may be reversed as 2 The second winding 3 is used as the primary winding.
此外,雖然在上述的實施形態中係將大孔部28L、中孔部28M及小孔部28S的與軸線C2 垂直的各剖面形狀皆設計為矩形狀,但剖面形狀並非限於矩形狀,亦可設計成各種形狀。Further, in the above-described embodiment, each of the cross-sectional shapes of the large hole portion 28L, the intermediate hole portion 28M, and the small hole portion 28S perpendicular to the axis C 2 is designed to have a rectangular shape, but the cross-sectional shape is not limited to a rectangular shape. Can be designed in a variety of shapes.
此外,關於鐵心的構成亦並非限定於上述的實施形態的態樣,可組合各種形狀的鐵心而使用。Further, the configuration of the core is not limited to the embodiment described above, and a core of various shapes may be combined and used.
此外,雖然在上述實施形態中係說明作為反相器變壓器等而使用的態樣,但本發明並非限定應用於反相器變壓器等,亦可應用於為其他目的而使用的各種變壓器,例如降壓變壓器等。Further, in the above-described embodiment, an aspect used as an inverter transformer or the like is described. However, the present invention is not limited to application to an inverter transformer or the like, and may be applied to various transformers used for other purposes, such as a drop. Voltage transformers, etc.
此外,雖然上述實施形態中的第2繞線管20係具有大小彼此相異的3個孔部(大孔部28L、中孔部28M及小孔部28S),但亦可為具備大小彼此相異的兩個孔部(大孔部與中孔部或者大孔部與小孔部)之態樣。於第7圖顯示作為第1實施形態的變形例的變壓器1’。第7圖係變壓器1’的剖面分解圖(對應於第4圖之圖),態樣與第1實施形態者相同的構件與部位係標註與第1圖至第4圖中所使用者相同的編號。Further, although the second bobbin 20 in the above embodiment has three hole portions (a large hole portion 28L, a middle hole portion 28M, and a small hole portion 28S) having different sizes, the size may be different from each other. Two different hole portions (large hole portion and middle hole portion or large hole portion and small hole portion). Fig. 7 shows a transformer 1' which is a modification of the first embodiment. Fig. 7 is a cross-sectional exploded view of the transformer 1' (corresponding to Fig. 4), and the same members and parts as those of the first embodiment are labeled the same as those of the first to fourth figures. Numbering.
如第7圖所示,變壓器1’的第2繞線管20’係具備大小彼此相異的兩個孔部(大孔部28L’與小孔部28S)而成。此外,第1繞線管10係藉由從插入口27’插入於上述大孔部28L’的延伸部13的前端部13a係接著於上述大孔部28L’的尾端部29而保持於第2繞線管20’。As shown in Fig. 7, the second bobbin 20' of the transformer 1' is formed by two hole portions (a large hole portion 28L' and a small hole portion 28S) having different sizes. Further, the first bobbin 10 is held by the distal end portion 13a of the extending portion 13 inserted into the large-hole portion 28L' from the insertion opening 27' and then attached to the distal end portion 29 of the large-hole portion 28L'. 2 bobbin 20'.
1...變壓器(第1實施形態)1. . . Transformer (first embodiment)
1’...變壓器(第1實施形態的變形例)1'. . . Transformer (variation of the first embodiment)
2...第1繞線(1次繞線)2. . . 1st winding (1 winding)
3...第2繞線(2次繞線)3. . . 2nd winding (2 windings)
4...繞線管單元4. . . Bobbin unit
5A、5B...(第1實施形的)鐵心5A, 5B. . . (first embodiment) core
6A至6G...端子6A to 6G. . . Terminal
7...變壓器(第2實施形態)7. . . Transformer (second embodiment)
8A、8B...(第2實施形的)鐵心8A, 8B. . . (second embodiment) core
9...保持帶9. . . Hold belt
10...第1繞線管10. . . First bobbin
11...第1捲繞部11. . . First winding section
12...第1貫穿孔12. . . First through hole
13...延伸部13. . . Extension
13a...前端面13a. . . Front end face
14...(第1繞線管的)端子台14. . . Terminal block (of the first bobbin)
15A、15B...(第1繞線管的)端突邊15A, 15B. . . End flange of the first bobbin
20、20’...第2繞線管20, 20’. . . Second bobbin
21...第2捲繞部twenty one. . . Second winding section
22...第2貫穿孔twenty two. . . Second through hole
23A、23B...(第2繞線管的)端子台23A, 23B. . . Terminal block (of the second bobbin)
24A、24B...(第2繞線管的)端突邊24A, 24B. . . End of the second bobbin
25A、25B...分隔突邊25A, 25B. . . Separate flange
26A至26E...凹部26A to 26E. . . Concave
27、27’...插入口27, 27’. . . Insert
28L、28L’...大孔部28L, 28L’. . . Large hole
28M...中孔部28M. . . Middle hole
28S...小孔部28S. . . Small hole
29...尾端部29. . . Tail end
51A、52A...(鐵心5A的)腳部51A, 52A. . . (iron core 5A) foot
51B、52B...(鐵心5B的)腳部51B, 52B. . . (iron core 5B) foot
81A、82A...(鐵心8A的)外腳部81A, 82A. . . (iron core 8A) outer leg
81B、82B...(鐵心8B的)外腳部81B, 82B. . . (iron core 8B) outer leg
83A...(鐵心8A的)中腳部83A. . . Middle foot (core 8A)
83B...(鐵心8B的)中腳部83B. . . Midfoot (iron core 8B)
91...基部91. . . Base
92A至92E...爪部92A to 92E. . . Claw
d1 、d2 ...長度d 1 , d 2 . . . length
C1 、C2 ...軸線C 1 , C 2 . . . Axis
S1 至S3 ...捲繞區域S 1 to S 3 . . . Winding area
第1圖係顯示第1實施形態的變壓器的整體構成的正面圖。Fig. 1 is a front elevational view showing the overall configuration of a transformer according to a first embodiment.
第2圖係第1實施形態的變壓器的分解斜視圖。Fig. 2 is an exploded perspective view showing the transformer of the first embodiment.
第3圖係第1實施形態的變壓器的沿第1圖的A-A線切斷的剖面圖。Fig. 3 is a cross-sectional view taken along line A-A of Fig. 1 of the transformer of the first embodiment.
第4圖係第3圖所示剖面圖的分解圖。Figure 4 is an exploded view of the cross-sectional view shown in Figure 3.
第5圖係顯示第2實施形態的變壓器的整體構成的正面圖。Fig. 5 is a front elevational view showing the overall configuration of a transformer according to a second embodiment.
第6圖係第2實施形態所使用的鐵心及保持帶的斜視圖。Fig. 6 is a perspective view showing a core and a holding belt used in the second embodiment.
第7圖係第1實施形態的變形例的變壓器的剖面分解圖。Fig. 7 is a cross-sectional, exploded view of a transformer according to a modification of the first embodiment.
1...變壓器(第1實施形態)1. . . Transformer (first embodiment)
2...第1繞線(1次繞線)2. . . 1st winding (1 winding)
3...第2繞線(2次繞線)3. . . 2nd winding (2 windings)
4...繞線管單元4. . . Bobbin unit
5A、5B...(第1實施形的)鐵心5A, 5B. . . (first embodiment) core
6A至6G...端子6A to 6G. . . Terminal
10...第1繞線管10. . . First bobbin
11...第1捲繞部11. . . First winding section
13...延伸部13. . . Extension
14...(第1繞線管的)端子台14. . . Terminal block (of the first bobbin)
15A、15B...(第1繞線管的)端突邊15A, 15B. . . End flange of the first bobbin
20...第2繞線管20. . . Second bobbin
21...第2捲繞部twenty one. . . Second winding section
23A、23B...(第2繞線管的)端子台23A, 23B. . . Terminal block (of the second bobbin)
24A、24B...(第2繞線管的)端突邊24A, 24B. . . End of the second bobbin
25A、25B...分隔突邊25A, 25B. . . Separate flange
26A至26E...凹部26A to 26E. . . Concave
52A...(鐵心5A的)腳部52A. . . (iron core 5A) foot
52B...(鐵心5B的)腳部52B. . . (iron core 5B) foot
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008045813A JP2009206247A (en) | 2008-02-27 | 2008-02-27 | Transformer |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200937461A TW200937461A (en) | 2009-09-01 |
TWI390559B true TWI390559B (en) | 2013-03-21 |
Family
ID=41015923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW98105788A TWI390559B (en) | 2008-02-27 | 2009-02-24 | Transformer |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2009206247A (en) |
TW (1) | TWI390559B (en) |
WO (1) | WO2009107523A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102022632B1 (en) * | 2018-06-01 | 2019-09-18 | 엘지전자 주식회사 | High voltage transformer for microwave oven |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4712727Y1 (en) * | 1968-02-08 | 1972-05-11 | ||
JPS5025290Y1 (en) * | 1970-08-05 | 1975-07-30 | ||
JPS61158937U (en) * | 1985-03-25 | 1986-10-02 | ||
JPS62213215A (en) * | 1986-03-14 | 1987-09-19 | Matsushita Electric Ind Co Ltd | Flyback transformer |
TWI280720B (en) * | 2006-02-10 | 2007-05-01 | Yujing Technology Co Ltd | Constant frequency electric power supply apparatus |
-
2008
- 2008-02-27 JP JP2008045813A patent/JP2009206247A/en active Pending
-
2009
- 2009-02-18 WO PCT/JP2009/052738 patent/WO2009107523A1/en active Application Filing
- 2009-02-24 TW TW98105788A patent/TWI390559B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2009107523A1 (en) | 2009-09-03 |
TW200937461A (en) | 2009-09-01 |
JP2009206247A (en) | 2009-09-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8022803B2 (en) | Transformer | |
KR100879251B1 (en) | Balance transformer | |
US8692638B2 (en) | Transformer and display device using the same | |
EP2535905B1 (en) | Transformer and display device using the same | |
JP2006270055A (en) | Resonance type transformer and power supply unit using it | |
US20130002386A1 (en) | Transformer and display device using the same | |
US20120320504A1 (en) | Transformer and display device using the same | |
US20110187485A1 (en) | Transformer having sectioned bobbin | |
US20140160644A1 (en) | Coil component and display device including the same | |
KR20120025161A (en) | Transformer for converter | |
US20110260818A1 (en) | Slim type high voltage transformer | |
TWI390559B (en) | Transformer | |
WO2012042707A1 (en) | Insulating transformer | |
US8279034B2 (en) | Slim type high voltage transformer | |
US20140002968A1 (en) | Coil component and display device including the same | |
JP2007173359A (en) | Transformer | |
JP2011171425A (en) | Core for coil | |
KR100751592B1 (en) | A transformer for inverter | |
JP3892219B2 (en) | Multiple light leakage transformer | |
KR200425105Y1 (en) | structure core for transformer using bobbin | |
JP2009290163A (en) | Bobbin for transformer, and high-voltage transformer equipped therewith | |
CN212516774U (en) | Quick assembly type transformer | |
JP2009158573A (en) | Transformer | |
JP2007173455A (en) | Winding component | |
JP2011066115A (en) | Insulation transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |