TWI658477B - Power transformer and circuit board module - Google Patents
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Abstract
一種電源變壓器，包括至少一個一次側導電片、至少一個二次側導電片、一第一出腳導電條、一第二出腳導電條及一鐵芯組。此至少一個二次側導電片沿著一軸線疊置於此至少一個一次側導電片。第一出腳導電條與第二出腳導電條從此至少一個二次側導電片延伸而出，並彎折而沿著軸線延伸。鐵芯組耦合於此至少一個一次側導電片及此至少一個二次側導電片。本發明更提供一種電路板模組。A power transformer includes at least one primary-side conductive sheet, at least one secondary-side conductive sheet, a first pin-out conductive strip, a second pin-out conductive strip, and an iron core group. The at least one secondary-side conductive sheet is stacked on the at least one primary-side conductive sheet along an axis. The first pin-out conductive strip and the second pin-out conductive strip extend from the at least one secondary-side conductive sheet, and are bent to extend along the axis. The core group is coupled to the at least one primary-side conductive sheet and the at least one secondary-side conductive sheet. The invention further provides a circuit board module.
Description
本發明是有關於一種電源變壓器及電路板模組，且特別是有關於一種能夠提供良好散熱效果的電源變壓器及電路板模組。The invention relates to a power transformer and a circuit board module, and more particularly to a power transformer and a circuit board module capable of providing a good heat dissipation effect.
目前，電源供應器內的整流電晶體所使用的散熱方式例如是以鎖附或者貼附等方式固定到額外的散熱片，藉由散熱片來增加散熱面積而降溫。詳細地說，若是以直立式(例如是To-220包裝)的整流電晶體而言，其通常是固定在散熱片上，並連同散熱片一起焊在電路板上。若是以貼片式(例如是SO8包裝，其是焊接在小塊的電路板上)的整流電晶體而言，也會連接至額外的散熱片來散熱。換句話說，習知的整流電晶體均是透過額外的散熱片來達到散熱的效果。然而，這使得電源供應器需要預留散熱片的空間，整體體積難以縮減。At present, the heat dissipation method used by the rectifier transistor in the power supply is, for example, fixed to an additional heat sink by means of locking or attaching, and the heat sink increases the heat dissipation area and reduces the temperature. In detail, if the rectifier transistor is an upright (for example, To-220 package), it is usually fixed on a heat sink and soldered to the circuit board together with the heat sink. If it is a chip rectifier (for example, SO8 package, which is soldered on a small circuit board), it will also be connected to an additional heat sink to dissipate heat. In other words, the conventional rectifier transistors all achieve heat dissipation through an additional heat sink. However, this makes the power supply need to reserve space for the heat sink, and the overall volume is difficult to reduce.
本發明提供一種電源變壓器，其能夠提供良好散熱效果。The invention provides a power transformer, which can provide a good heat dissipation effect.
本發明提供一種電路板模組，其電源變壓器能夠對整流電晶體提供良好的散熱效果。The invention provides a circuit board module whose power transformer can provide a good heat dissipation effect to a rectifier transistor.
本發明的一種電源變壓器，包括至少一個一次側導電片、至少一個二次側導電片、一第一出腳導電條、一第二出腳導電條及一鐵芯組。此至少一個二次側導電片沿著一軸線疊置於此至少一個一次側導電片。第一出腳導電條從此至少一個二次側導電片延伸而出，並彎折而沿著軸線延伸。第二出腳導電條從此至少一個二次側導電片延伸而出，並彎折而沿著軸線延伸。鐵芯組耦合於此至少一個一次側導電片及此至少一個二次側導電片。A power transformer of the present invention includes at least one primary-side conductive sheet, at least one secondary-side conductive sheet, a first pin-out conductive strip, a second pin-out conductive strip, and an iron core group. The at least one secondary-side conductive sheet is stacked on the at least one primary-side conductive sheet along an axis. The first lead-out conductive strip extends from the at least one secondary-side conductive sheet, and is bent to extend along the axis. The second lead-out conductive strip extends from the at least one secondary-side conductive sheet, and is bent to extend along the axis. The core group is coupled to the at least one primary-side conductive sheet and the at least one secondary-side conductive sheet.
在本發明的一實施例中，上述的電源變壓器更包括一底板、一第一散熱件及一第二散熱件。鐵芯組、此至少一個一次側導電片及此至少一個二次側導電片位於底板上，底板包括一第一穿孔、一第二穿孔、一第三穿孔及一第四穿孔，其中第一出腳導電條穿過第一穿孔，且第二出腳導電條穿過第二穿孔。第一散熱件具有相對的一第一端與一第二端，第一端連接於第一出腳導電條且第二端穿過第三穿孔。第二散熱件具有相對的一第三端與一第四端，第三端連接於第二出腳導電條且第四端穿過第四穿孔。In an embodiment of the present invention, the power transformer further includes a bottom plate, a first heat sink, and a second heat sink. The core group, the at least one primary-side conductive sheet, and the at least one secondary-side conductive sheet are located on a bottom plate. The bottom plate includes a first perforation, a second perforation, a third perforation, and a fourth perforation. The foot conductive strip passes through the first perforation, and the second foot conductive strip passes through the second perforation. The first heat sink has a first end and a second end opposite to each other. The first end is connected to the first leg conductive strip and the second end passes through the third perforation. The second heat sink has a third end and a fourth end opposite to each other. The third end is connected to the second conductive leg and the fourth end passes through the fourth through hole.
在本發明的一實施例中，上述的電源變壓器更包括多個中心抽頭出腳導電條，其中此至少一個二次側導電片包括多個二次側導電片，第一出腳導電條從其中一個二次側導電片延伸而出，第二出腳導電條從另一個二次側導電片延伸而出，且這些中心抽頭出腳導電條分別從這些二次側導電片延伸而出，並彎折而沿著軸線延伸。In an embodiment of the present invention, the above-mentioned power transformer further includes a plurality of center tapped conductive strips, wherein the at least one secondary-side conductive sheet includes a plurality of secondary-side conductive strips, and the first leg-shaped conductive strips are provided therefrom. One secondary-side conductive sheet extends out, the second lead-out conductive strip extends from the other secondary-side conductive sheet, and these center-tap out-foot conductive strips respectively extend from these secondary-side conductive sheets, and bend Fold to extend along the axis.
在本發明的一實施例中，上述的此至少一個一次側導電片包括多個一次側導電片，此至少一個二次側導電片包括多個二次側導電片，這些一次側導電片與這些二次側導電片分別交替地堆疊。In an embodiment of the present invention, the at least one primary-side conductive sheet includes a plurality of primary-side conductive sheets, the at least one secondary-side conductive sheet includes a plurality of secondary-side conductive sheets, and the primary-side conductive sheets and these The secondary-side conductive sheets are stacked alternately, respectively.
在本發明的一實施例中，上述的各個一次側導電片為扁環形，各個二次側導電片為扁環形鐵芯組，鐵芯組貫穿於此至少一個一次側導電片及此至少一個二次側導電片。In an embodiment of the present invention, each of the above-mentioned primary-side conductive pieces is a flat ring shape, and each of the secondary-side conductive pieces is a flat ring-shaped iron core group, and the iron core group runs through the at least one primary-side conductive piece and the at least one two Secondary side conductive sheet.
本發明的一種電路板模組，包括一電路板、多個整流電晶體及一電源變壓器。電路板包括相對的一第一面及一第二面。這些整流電晶體配置於電路板的第一面，各整流電晶體包括一汲極。電源變壓器配置於電路板的第二面。電源變壓器包括至少一個一次側導電片、至少一個二次側導電片、一第一出腳導電條、一第二出腳導電條及一鐵芯組。此至少一個二次側導電片沿著一軸線疊置於此至少一個一次側導電片。第一出腳導電條從此至少一個二次側導電片延伸而出，並彎折而沿著軸線延伸，第一出腳導電條導通於這些整流電晶體的這些汲極的一部分。第二出腳導電條從此至少一個二次側導電片延伸而出，並彎折而沿著軸線延伸，第二出腳導電條導通於這些整流電晶體的這些汲極的另一部分。鐵芯組耦合於此至少一個一次側導電片及此至少一個二次側導電片。A circuit board module of the present invention includes a circuit board, a plurality of rectifier transistors, and a power transformer. The circuit board includes a first surface and a second surface opposite to each other. These rectifier transistors are disposed on the first side of the circuit board. Each rectifier transistor includes a drain. The power transformer is disposed on the second side of the circuit board. The power transformer includes at least one primary-side conductive sheet, at least one secondary-side conductive sheet, a first pin-out conductive strip, a second pin-out conductive strip, and an iron core group. The at least one secondary-side conductive sheet is stacked on the at least one primary-side conductive sheet along an axis. The first pin-out conductive strip extends from the at least one secondary-side conductive sheet, and is bent to extend along the axis. The first pin-out conductive strip is connected to a part of the drain electrodes of the rectifier transistors. The second pin-out conductive strip extends from the at least one secondary-side conductive sheet, and is bent to extend along the axis. The second pin-out conductive strip is connected to another portion of the drain electrodes of the rectifier transistors. The core group is coupled to the at least one primary-side conductive sheet and the at least one secondary-side conductive sheet.
在本發明的一實施例中，上述的電源變壓器對電路板的正投影重疊於這些整流電晶體對電路板的正投影。In an embodiment of the present invention, the above-mentioned orthographic projection of the power transformer to the circuit board overlaps the orthographic projection of these rectifier transistors to the circuit board.
在本發明的一實施例中，上述的電源變壓器更包括一底板、一第一散熱件及一第二散熱件。鐵芯組、此至少一個一次側導電片及此至少一個二次側導電片位於底板上，底板包括一第一穿孔、一第二穿孔、一第三穿孔及一第四穿孔，其中第一出腳導電條穿過第一穿孔，且第二出腳導電條穿過第二穿孔。第一散熱件具有相對的一第一端與一第二端，第一端連接於第一出腳導電條且第二端穿過第三穿孔。第二散熱件具有相對的一第三端與一第四端，第三端連接於第二出腳導電條且第四端穿過第四穿孔。In an embodiment of the present invention, the power transformer further includes a bottom plate, a first heat sink, and a second heat sink. The core group, the at least one primary-side conductive sheet, and the at least one secondary-side conductive sheet are located on a bottom plate. The bottom plate includes a first perforation, a second perforation, a third perforation, and a fourth perforation. The foot conductive strip passes through the first perforation, and the second foot conductive strip passes through the second perforation. The first heat sink has a first end and a second end opposite to each other. The first end is connected to the first leg conductive strip and the second end passes through the third perforation. The second heat sink has a third end and a fourth end opposite to each other. The third end is connected to the second conductive leg and the fourth end passes through the fourth through hole.
在本發明的一實施例中，上述的電路板包括位於第一面的多個第一接墊及多個第二接墊，這些第一接墊位於這些整流電晶體的一側，這些第二接墊位於這些整流電晶體的另一側，這些第一接墊與這些第二接墊分別導通於這些整流電晶體的這些汲極，第一出腳導電條與第二出腳導電條分別插設於電路板且連接至這些第一接墊，第一散熱件與第二散熱件分別插設於電路板且連接至這些第二接墊。In an embodiment of the present invention, the circuit board includes a plurality of first pads and a plurality of second pads on a first surface, and the first pads are located on a side of the rectifier transistors, and the second The pads are located on the other side of the rectifier transistors. The first pads and the second pads are respectively connected to the drains of the rectifier transistors, and the first and the second conductive pins are inserted respectively. The first heat sink and the second heat sink are respectively installed on the circuit board and connected to the first pads, and are connected to the second pads.
在本發明的一實施例中，上述的電路板模組更包括一風扇，配置於電路板的第二面上，且電源變壓器的第一出腳導電條及第二出腳導電條面向風扇。In an embodiment of the present invention, the above-mentioned circuit board module further includes a fan, which is disposed on the second surface of the circuit board, and the first and second conductive legs of the power transformer face the fan.
在本發明的一實施例中，上述的軸線平行於電路板的一法線方向。In an embodiment of the present invention, the above-mentioned axis is parallel to a normal direction of the circuit board.
在本發明的一實施例中，上述的此至少一個一次側導電片包括多個一次側導電片，此至少一個二次側導電片包括多個二次側導電片，這些一次側導電片與這些二次側導電片分別交替地堆疊。In an embodiment of the present invention, the at least one primary-side conductive sheet includes a plurality of primary-side conductive sheets, the at least one secondary-side conductive sheet includes a plurality of secondary-side conductive sheets, and the primary-side conductive sheets and these The secondary-side conductive sheets are stacked alternately, respectively.
在本發明的一實施例中，上述的電源變壓器更包括多個中心抽頭出腳導電條，其中此至少一個二次側導電片包括多個二次側導電片，第一出腳導電條從其中一個二次側導電片延伸而出，第二出腳導電條從另一個二次側導電片延伸而出，且這些中心抽頭出腳導電條分別從這些二次側導電片延伸而出，並彎折而沿著軸線延伸且插設於電路板。 各一次側導電片為扁環形，各二次側導電片為扁環形鐵芯組，鐵芯組貫穿於此至少一個一次側導電片及此至少一個二次側導電片。In an embodiment of the present invention, the above-mentioned power transformer further includes a plurality of center tapped conductive strips, wherein the at least one secondary-side conductive sheet includes a plurality of secondary-side conductive strips, and the first leg-shaped conductive strips are provided therefrom. One secondary-side conductive sheet extends out, the second lead-out conductive strip extends from the other secondary-side conductive sheet, and these center-tap out-foot conductive strips respectively extend from these secondary-side conductive sheets, and bend Folded to extend along the axis and inserted into the circuit board. Each primary-side conductive sheet is a flat ring shape, and each secondary-side conductive sheet is a flat ring-shaped iron core group, and the iron core group runs through the at least one primary-side conductive sheet and the at least one secondary-side conductive sheet.
基於上述，本發明的電源變壓器的一次側導電片及二次側導電片沿著軸線疊置，第一出腳導電條與第二出腳導電條從二次側導電片延伸而出，並彎折而沿著軸線延伸。本發明的電路板模組利用整流電晶體的汲極與電源變壓器的第一出腳導電條與第二出腳導電條屬於同電位的特性，使電源變壓器的第一出腳導電條與第二出腳導電條導通於整流電晶體的汲極，而使得整流電晶體運作時產生的熱量能夠被帶往電源變壓器的第一出腳導電條與第二出腳導電條。換句話說，電源變壓器的第一出腳導電條與第二出腳導電條除了作為電訊號傳輸的功能之外，還能夠對整流電晶體具有散熱的作用。如此一來，整流電晶體可不需要額外的散熱片，而可縮減具有此電路板模組的裝置(例如是電源供應器)的整體體積與重量。Based on the above, the primary-side conductive sheet and the secondary-side conductive sheet of the power transformer of the present invention are stacked along the axis, and the first lead-out conductive strip and the second lead-out conductive strip extend from the secondary-side conductive sheet and bend. Fold to extend along the axis. The circuit board module of the present invention utilizes the characteristics of the drain electrode of the rectifier transistor and the first conductive pin of the power transformer and the second conductive pin of the power transformer to have the same potential, so that the first conductive pin of the power transformer and the second The lead-out conductive strip is conducted to the drain of the rectifier transistor, so that the heat generated during the operation of the rectifier transistor can be taken to the first and second lead-out conductive strips of the power transformer. In other words, in addition to the function of transmitting electrical signals, the first and second conductive pins of the power transformer can also dissipate heat from the rectifier transistor. In this way, the rectifier transistor does not need an additional heat sink, and the overall volume and weight of a device (such as a power supply) having the circuit board module can be reduced.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.
圖1是依照本發明的一實施例的一種電源變壓器的示意圖。圖2是圖1的電源變壓器的另一視角示意圖。圖3是圖1的電源變壓器的***示意圖。圖4是圖1的底板、第一散熱件及第二散熱件的俯視示意圖。FIG. 1 is a schematic diagram of a power transformer according to an embodiment of the present invention. FIG. 2 is another perspective view of the power transformer of FIG. 1. FIG. 3 is an exploded view of the power transformer of FIG. 1. FIG. 4 is a schematic top view of the bottom plate, the first heat sink, and the second heat sink of FIG. 1.
請參閱圖1至圖4，本實施例的電源變壓器100包括至少一個一次側導電片110、至少一個二次側導電片120、一第一出腳導電條130、一第二出腳導電條140及一鐵芯組160。一次側導電片110與二次側導電片120沿著一軸線A疊置。在本實施例中，至少一個一次側導電片110包括多個一次側導電片110，至少一個二次側導電片120包括多個二次側導電片120，且這些一次側導電片110與這些二次側導電片120分別交替地堆疊。當然，在其它實施例中，一次側導電片110與二次側導電片120的數量與堆疊方式並不以此為限制。Please refer to FIGS. 1 to 4. The power transformer 100 of this embodiment includes at least one primary-side conductive sheet 110, at least one secondary-side conductive sheet 120, a first-outlet conductive strip 130, and a second-outlet conductive strip 140. And an iron core group 160. The primary-side conductive sheet 110 and the secondary-side conductive sheet 120 are stacked along one axis A. In this embodiment, at least one primary-side conductive sheet 110 includes a plurality of primary-side conductive sheets 110, at least one secondary-side conductive sheet 120 includes a plurality of secondary-side conductive sheets 120, and these primary-side conductive sheets 110 and these two The secondary conductive sheets 120 are stacked alternately, respectively. Of course, in other embodiments, the number and the stacking method of the primary conductive sheet 110 and the secondary conductive sheet 120 are not limited thereto.
如圖3可見，在本實施例中，第一出腳導電條130從其中一個二次側導電片120延伸而出，並彎折而沿著軸線A延伸。第二出腳導電條140從另一個二次側導電片120延伸而出，並彎折而沿著軸線A延伸。當然，在其它實施例中，第一出腳導電條130與第二出腳導電條140也可以從相同的二次側導電片120延伸而出。此外，在本實施例中，電源變壓器100可選擇地包括多個中心抽頭出腳導電條150。這些中心抽頭出腳導電條150分別從這些二次側導電片120延伸而出，並彎折而沿著軸線A延伸。As can be seen in FIG. 3, in this embodiment, the first leg conductive strip 130 extends from one of the secondary-side conductive sheets 120, and is bent to extend along the axis A. The second lead-out conductive strip 140 extends from the other secondary-side conductive sheet 120 and is bent to extend along the axis A. Of course, in other embodiments, the first pin-out conductive strip 130 and the second pin-out conductive strip 140 may also extend from the same secondary-side conductive sheet 120. In addition, in this embodiment, the power transformer 100 may optionally include a plurality of center-tap-out conductive bars 150. The center-tap-out conductive bars 150 extend from the secondary-side conductive sheets 120, respectively, and are bent to extend along the axis A.
詳細而言，如圖3所示，在本實施例中，電源變壓器100包括兩個二次側導電片120，第一出腳導電條130以及其中一個中心抽頭出腳導電條150從位於下方的二次側導電片120延伸而出，彎折之後會經過下方的一次側導電片110旁。第二出腳導電條140以及另一個中心抽頭出腳導電條150從位於上方的二次側導電片120延伸而出，彎折之後會經過下方的一次側導電片110與二次側導電片120旁。In detail, as shown in FIG. 3, in this embodiment, the power transformer 100 includes two secondary-side conductive strips 120, a first lead-out conductive strip 130 and one of the center-tap lead-out conductive strips 150 from below. The secondary-side conductive sheet 120 extends out, and after bending, it passes by the lower-side conductive sheet 110. The second lead-out conductive strip 140 and the other center-tap lead-out conductive strip 150 extend from the upper-side secondary conductive sheet 120. After being bent, it passes through the lower-side conductive sheet 110 and the second-side conductive sheet 120. Aside.
另外，在本實施例中，鐵芯組160耦合於一次側導電片110及二次側導電片120。在本實施例中，每一個一次側導電片110與每一個二次側導電片120的形狀為扁環形，也就是說，每一個一次側導電片110的中心具有孔洞，且每一個二次側導電片120的中心具有孔洞。鐵芯組160分為上下兩半部，共同貫穿於這些一次側導電片110及這些二次側導電片120，而耦合於一次側導電片110及二次側導電片120。當然，在其它實施例中，鐵芯組160的形式並不以此為限制。In addition, in this embodiment, the core group 160 is coupled to the primary-side conductive sheet 110 and the secondary-side conductive sheet 120. In this embodiment, each primary-side conductive sheet 110 and each secondary-side conductive sheet 120 have a flat ring shape, that is, the center of each primary-side conductive sheet 110 has a hole, and each secondary side A hole is formed in the center of the conductive sheet 120. The core group 160 is divided into upper and lower halves, and penetrates through the primary conductive sheets 110 and the secondary conductive sheets 120 together, and is coupled to the primary conductive sheets 110 and the secondary conductive sheets 120. Of course, in other embodiments, the form of the core group 160 is not limited thereto.
此外，如圖1至圖4所示，在本實施例中，電源變壓器100更包括一底板170、一第一散熱件180及一第二散熱件185。鐵芯組160、這些一次側導電片110及這些二次側導電片120位於底板170上。如圖4所示，底板170包括一第一穿孔171、一第二穿孔172、一第三穿孔173、一第四穿孔174及一第五穿孔175。在本實施例中，第一散熱件180具有相對的一第一端182與一第二端184，第一端182連接於穿過第一穿孔171且第二端184穿過第三穿孔173。第二散熱件185具有相對的一第三端186與一第四端188，第三端186穿過第二穿孔172且第四端188穿過第四穿孔174。搭配圖1至圖3可見，第一出腳導電條130穿過第一穿孔171，且第一散熱件180的第一端182連接於第一出腳導電條130。第二出腳導電條140穿過第二穿孔172，且第二散熱件185的第三端186連接於第二出腳導電條140。此外，中心抽頭出腳導電條150穿過第五穿孔175。In addition, as shown in FIGS. 1 to 4, in this embodiment, the power transformer 100 further includes a bottom plate 170, a first heat sink 180, and a second heat sink 185. The core group 160, the primary-side conductive sheets 110, and the secondary-side conductive sheets 120 are located on the bottom plate 170. As shown in FIG. 4, the bottom plate 170 includes a first through hole 171, a second through hole 172, a third through hole 173, a fourth through hole 174 and a fifth through hole 175. In this embodiment, the first heat sink 180 has a first end 182 and a second end 184 opposite to each other. The first end 182 is connected to pass through the first hole 171 and the second end 184 passes through the third hole 173. The second heat sink 185 has a third end 186 and a fourth end 188 opposite to each other. The third end 186 passes through the second through hole 172 and the fourth end 188 passes through the fourth through hole 174. It can be seen from FIG. 1 to FIG. 3 that the first pin conductive strip 130 passes through the first through hole 171, and the first end 182 of the first heat sink 180 is connected to the first pin conductive strip 130. The second pin conductive strip 140 passes through the second through hole 172, and the third end 186 of the second heat sink 185 is connected to the second pin conductive strip 140. In addition, the center-tap-out conductive strip 150 passes through the fifth perforation 175.
下面將說明本實施例的電源變壓器100如何對整流電晶體提供散熱的效果。The following describes how the power transformer 100 of this embodiment provides a heat dissipation effect to the rectifier transistor.
圖5是依照本發明的一實施例的一種電路板模組的局部示意圖。圖6是圖5的電路板模組的另一面的示意圖。請參閱圖5與圖6，圖5繪示電路板20的第一面21的局部區域，且圖6繪示電路板20的第二面22的對應區域。FIG. 5 is a partial schematic diagram of a circuit board module according to an embodiment of the present invention. FIG. 6 is a schematic diagram of another side of the circuit board module of FIG. 5. Please refer to FIGS. 5 and 6. FIG. 5 illustrates a partial region of the first surface 21 of the circuit board 20, and FIG. 6 illustrates a corresponding region of the second surface 22 of the circuit board 20.
在本實施例中，電路板模組10包括一電路板20、多個整流電晶體30(如圖5)及一電源變壓器100(如圖6)。電路板20包括相對的一第一面21(如圖5)及一第二面22(如圖6)。如圖5所示，這些整流電晶體30配置於電路板20的第一面21，各整流電晶體30包括至少一汲極32。在本實施例中，電路板模組10以包括六個整流電晶體30，這六個整流電晶體30分為上下兩排，且各整流電晶體30包括四個汲極32為例，但電路板模組10的整流電晶體30的數量、配置關係以及各整流電晶體30的汲極32的數量不以上述為限制。In this embodiment, the circuit board module 10 includes a circuit board 20, a plurality of rectifier transistors 30 (as shown in FIG. 5), and a power transformer 100 (as shown in FIG. 6). The circuit board 20 includes a first surface 21 (see FIG. 5) and a second surface 22 (see FIG. 6) opposite to each other. As shown in FIG. 5, the rectifier transistors 30 are disposed on the first surface 21 of the circuit board 20. Each rectifier transistor 30 includes at least one drain electrode 32. In this embodiment, the circuit board module 10 includes six rectifier transistors 30. The six rectifier transistors 30 are divided into two rows. Each rectifier transistor 30 includes four drain electrodes 32 as an example. The number and arrangement of the rectifier transistors 30 of the board module 10 and the number of the drain electrodes 32 of the rectifier transistors 30 are not limited to those described above.
此外，在本實施例中，電路板20包括位於第一面21的多個第一接墊23，這些第一接墊23位於這些整流電晶體30的一側。這些第一接墊23分別導通於這些整流電晶體30的這些汲極32。詳細地說，在本實施例中，第一接墊23的數量為兩個，位於上排的這三個整流電晶體30的這些汲極32會透過線路26連接至上方的第一接墊23，位於下排的這三個整流電晶體30的這些汲極32會透過線路26連接至下方的第一接墊23。In addition, in this embodiment, the circuit board 20 includes a plurality of first pads 23 located on the first surface 21, and the first pads 23 are located on one side of the rectifier transistors 30. The first pads 23 are respectively connected to the drain electrodes 32 of the rectifier transistors 30. In detail, in this embodiment, the number of the first pads 23 is two, and the drain electrodes 32 of the three rectifier transistors 30 in the upper row are connected to the first pads 23 above through the lines 26. The drain electrodes 32 of the three rectifier transistors 30 in the lower row are connected to the first pad 23 below through the line 26.
如圖6所示，電源變壓器100(標示於圖1)配置於電路板20的第二面22。在本實施例中，電源變壓器100的第一出腳導電條130與第二出腳導電條140所延伸的軸線A(標示於圖1)會平行於電路板20的一法線方向。換句話說，電源變壓器100的一次側導電片110與二次側導電片120(標示於圖1)是沿著電路板20的法線方向堆疊。由圖6可見，電源變壓器100對電路板20的正投影重疊於這些整流電晶體30對電路板20的正投影。As shown in FIG. 6, the power transformer 100 (labeled in FIG. 1) is disposed on the second surface 22 of the circuit board 20. In this embodiment, the axis A (labeled in FIG. 1) extending from the first conductive leg 130 and the second conductive leg 140 of the power transformer 100 is parallel to a normal direction of the circuit board 20. In other words, the primary-side conductive sheet 110 and the secondary-side conductive sheet 120 (labeled in FIG. 1) of the power transformer 100 are stacked along the normal direction of the circuit board 20. As can be seen from FIG. 6, the orthographic projection of the power transformer 100 on the circuit board 20 overlaps the orthographic projection of these rectifier transistors 30 on the circuit board 20.
如圖6所示，在本實施例中，第一出腳導電條130沿著射入圖面的方向延伸而插設於電路板20，而連接於位於電路板20的第一面21的左上位置的第一接墊23，而導通於上排的這些整流電晶體30的這些汲極32。第二出腳導電條140沿著射入圖面的方向延伸而插設於電路板20，而連接於連接於位於電路板20的第一面21的左下位置的第一接墊23，而導通於下排的這些整流電晶體30的這些汲極32。As shown in FIG. 6, in this embodiment, the first lead conductive strip 130 extends along the direction of the projection plane and is inserted into the circuit board 20 and connected to the upper left of the first surface 21 of the circuit board 20. The first pads 23 are connected to the drain electrodes 32 of the rectifier transistors 30 in the upper row. The second lead-out conductive strip 140 extends along the direction of entering the drawing surface and is inserted into the circuit board 20, and is connected to the first pad 23 connected to the lower left position of the first surface 21 of the circuit board 20, and is turned on. The drain electrodes 32 of the rectifier transistors 30 in the lower row.
在本實施例的電路板模組10中，利用整流電晶體30的汲極32與電源變壓器100的第一出腳導電條130與第二出腳導電條140屬於同電位的特性，使電源變壓器100的第一出腳導電條130與第二出腳導電條140導通於整流電晶體30的汲極32，而使得整流電晶體30運作時產生的熱量能夠被帶往電源變壓器100的第一出腳導電條130與第二出腳導電條140。換句話說，電源變壓器100的第一出腳導電條130與第二出腳導電條140除了作為電訊號傳輸的功能之外，還能夠對整流電晶體30具有散熱的作用。In the circuit board module 10 of this embodiment, the drain 32 of the rectifier transistor 30 and the first and second conductive strips 130 and 140 of the power transformer 100 have the same potential characteristics, so that the power transformer The first conductive pin 130 and the second conductive pin 140 of 100 are electrically connected to the drain 32 of the rectifier transistor 30, so that the heat generated during the operation of the rectifier transistor 30 can be taken to the first output of the power transformer 100. The foot conductive strip 130 and the second foot-out conductive strip 140. In other words, in addition to the functions of transmitting electrical signals, the first and second conductive strips 130 and 140 of the power transformer 100 can also dissipate heat from the rectifier transistor 30.
值得一提的是，如圖5所示，在本實施例中，為了提升散熱效率，電路板20還可選擇地包括位於第一面21的多個第二接墊24，這些第一接墊23與這些第二接墊24分別位於這些整流電晶體30的相對兩側。這些第二接墊24分別導通於這些整流電晶體30的這些汲極32。詳細地說，在本實施例中，第二接墊24的數量為兩個，位於上排的這三個整流電晶體30的這些汲極32會透過線路26連接至上方的第二接墊24，位於下排的這三個整流電晶體30的這些汲極32會透過線路26連接至下方的第二接墊24。另外，在本實施例中，電路板20還可選擇地包括位於第一面21的一第三接墊25，電源變壓器100的中心抽頭出腳導電條150會插設於電路板20而連接至第三接墊25。It is worth mentioning that, as shown in FIG. 5, in this embodiment, in order to improve heat dissipation efficiency, the circuit board 20 may optionally include a plurality of second pads 24 on the first surface 21. These first pads 23 and the second pads 24 are located on opposite sides of the rectifier transistors 30, respectively. The second pads 24 are respectively connected to the drain electrodes 32 of the rectifier transistors 30. In detail, in this embodiment, the number of the second pads 24 is two, and the drain electrodes 32 of the three rectifier transistors 30 in the upper row are connected to the upper second pads 24 through the line 26. The drain electrodes 32 of the three rectifier transistors 30 in the lower row are connected to the second pad 24 below through the line 26. In addition, in the present embodiment, the circuit board 20 may optionally include a third pad 25 on the first surface 21. The center tapped conductive strip 150 of the power transformer 100 is inserted into the circuit board 20 and connected to the circuit board 20. Third joint pad 25.
在本實施例中，在這些整流電晶體30的相對兩側分別設有第一接墊23與第二接墊24，由於各排有三個整流電晶體30，位於右方的整流電晶體30與第一接墊23之間的距離大於與第二接墊24之間的距離，而使得電流更傾向往第二接墊24流去，位於右方的整流電晶體30在運作時產生的熱量也更傾向往第二接墊24傳遞。如此一來，這些整流電晶體30可利用位於相對兩側的第一接墊23與第二接墊24來傳遞電流與熱量。In this embodiment, a first pad 23 and a second pad 24 are respectively provided on opposite sides of these rectifier transistors 30. Since there are three rectifier transistors 30 in each row, the rectifier transistors 30 and The distance between the first pads 23 is greater than the distance from the second pads 24, so that the current is more inclined to flow to the second pads 24, and the heat generated by the rectifier transistor 30 located on the right side during operation is also More inclined to pass to the second pad 24. In this way, these rectifier transistors 30 can use the first pads 23 and the second pads 24 on opposite sides to transfer current and heat.
請回到圖1、圖2與圖6，在本實施例中，電源變壓器100的第一散熱件180的第一端182與第一出腳導電條130一起***設於電路板20，而連接於位於電路板20的第一面21的左上位置的第一接墊23，電源變壓器100的第一散熱件180的第二端184插設於電路板20而連接於位於電路板20的第一面21的右上位置的第二接墊24。電源變壓器100的第二散熱件185的第三端186與第二出腳導電條140一起***設於電路板20且連接於位於電路板20的第一面21的左下位置的第一接墊23，電源變壓器100的第二散熱件185的第四端188插設於電路板20而連接於位於電路板20的第一面21的右下位置的第二接墊24。Please return to FIG. 1, FIG. 2 and FIG. 6. In this embodiment, the first end 182 of the first heat sink 180 of the power transformer 100 is inserted into the circuit board 20 together with the first pin conductive strip 130, and The first pad 23 is connected to the upper left position of the first surface 21 of the circuit board 20. The second end 184 of the first heat sink 180 of the power transformer 100 is inserted into the circuit board 20 and connected to the first board 23 of the circuit board 20. The second pad 24 on the upper right side of the one surface 21. The third end 186 of the second heat sink 185 of the power transformer 100 is inserted into the circuit board 20 together with the second pin conductive strip 140 and is connected to the first pad located at the lower left position of the first surface 21 of the circuit board 20. 23. The fourth end 188 of the second heat sink 185 of the power transformer 100 is inserted into the circuit board 20 and connected to the second pad 24 located at the lower right position of the first surface 21 of the circuit board 20.
因此，請同時參照圖5與圖6，位在電路板20的第一面21的上排整流電晶體30所產生的一部分的熱可以往左依序經過線路26、第一接墊23、第一散熱件180的第一端182而傳導至第一出腳導電條130，位在電路板20的第一面21的上排整流電晶體30所產生的一部分的熱還可以往右依序經過線路26、第二接墊24、第一散熱件180的第二端184、第一散熱件180、第一散熱件180的第一端182而傳導至至第一出腳導電條130。Therefore, please refer to FIG. 5 and FIG. 6 at the same time, a part of the heat generated by the upper row rectifier transistor 30 located on the first surface 21 of the circuit board 20 can pass through the line 26, the first pad 23, the first A first end 182 of a heat sink 180 is conducted to the first pin conductive strip 130, and a part of the heat generated by the upper row rectifier transistor 30 located on the first surface 21 of the circuit board 20 can also pass through in the right direction in the past. The line 26, the second pad 24, the second end 184 of the first heat sink 180, the first heat sink 180, and the first end 182 of the first heat sink 180 are conducted to the first pin conductive strip 130.
同樣地，位在電路板20的第一面21的下排整流電晶體30所產生的一部分的熱可以往左依序經過線路26、第一接墊23、第二散熱件185的第三端186而傳導至第二出腳導電條140，位在電路板20的第一面21的下排整流電晶體30所產生的一部分的熱也可以往右依序經過線路26、第二接墊24、第二散熱件185的第四端188、第二散熱件185、第二散熱件185的第三端186而傳導至第二出腳導電條140。Similarly, a part of the heat generated by the lower rectifier transistor 30 located on the first surface 21 of the circuit board 20 can pass through the third end of the line 26, the first pad 23, and the second heat sink 185 in order to the left. 186 is conducted to the second pin conductive strip 140, and a part of the heat generated by the lower rectifier transistor 30 located on the first surface 21 of the circuit board 20 can also pass through the line 26 and the second pad 24 in order to the right. The fourth end 188 of the second heat sink 185, the second heat sink 185, and the third end 186 of the second heat sink 185 are conducted to the second pin conductive strip 140.
在本實施例中，電源變壓器100利用第一出腳導電條130、第二出腳導電條140、第一散熱件180及第二散熱件185來提供了大的散熱面積，而有助於散熱。另外，由圖6可見，在本實施例中，電路板模組10更可選擇地包括一風扇40，配置於電路板20的第二面22上，風扇40所產生的風流(可以是風扇40所吹出的風或是所抽的風)可以快速地帶離傳導至第一出腳導電條130及第二出腳導電條140的熱，而對整流電晶體30降溫。在本實施例中，電源變壓器100的第一出腳導電條130及第二出腳導電條140面向風扇40，但在其它實施例中，第一出腳導電條130、第二出腳導電條140與風扇40之間的位置關係不以此為限制，且在圖6中所繪示的風扇40僅是作為示意，風扇40的種類以及與電源變壓器100之間的距離不以此為限制。In this embodiment, the power transformer 100 utilizes the first pin-out conductive strip 130, the second pin-out conductive strip 140, the first heat dissipating member 180, and the second heat dissipating member 185 to provide a large heat dissipation area and help to dissipate heat. . In addition, as can be seen from FIG. 6, in this embodiment, the circuit board module 10 may optionally include a fan 40 disposed on the second surface 22 of the circuit board 20. The wind current generated by the fan 40 (may be the fan 40) The blown wind or the drawn wind) can quickly remove the heat conducted to the first pin conductive strip 130 and the second pin conductive strip 140 and cool the rectifier transistor 30. In this embodiment, the first pin conductive strip 130 and the second pin conductive strip 140 of the power transformer 100 face the fan 40, but in other embodiments, the first pin conductive strip 130 and the second pin conductive strip The positional relationship between 140 and the fan 40 is not limited by this, and the fan 40 shown in FIG. 6 is only for illustration, and the type of the fan 40 and the distance from the power transformer 100 are not limited by this.
綜上所述，本發明的電源變壓器的一次側導電片及二次側導電片沿著軸線疊置，第一出腳導電條與第二出腳導電條從二次側導電片延伸而出，並彎折而沿著軸線延伸。本發明的電路板模組利用整流電晶體的汲極與電源變壓器的第一出腳導電條與第二出腳導電條屬於同電位的特性，使電源變壓器的第一出腳導電條與第二出腳導電條導通於整流電晶體的汲極，而使得整流電晶體運作時產生的熱量能夠被帶往電源變壓器的第一出腳導電條與第二出腳導電條。換句話說，電源變壓器的第一出腳導電條與第二出腳導電條除了作為電訊號傳輸的功能之外，還能夠對整流電晶體具有散熱的作用。如此一來，整流電晶體可不需要額外的散熱片，而可縮減具有此電路板模組的裝置(例如是電源供應器)的整體體積與重量。In summary, the primary-side conductive sheet and the secondary-side conductive sheet of the power transformer of the present invention are stacked along the axis, and the first lead-out conductive strip and the second lead-out conductive strip extend from the secondary-side conductive sheet. And bend to extend along the axis. The circuit board module of the present invention utilizes the characteristics of the drain electrode of the rectifier transistor and the first conductive pin of the power transformer and the second conductive pin of the power transformer to have the same potential, so that the first conductive pin of the power transformer and the second conductive pin of the power transformer The lead-out conductive strip is conducted to the drain of the rectifier transistor, so that the heat generated during the operation of the rectifier transistor can be taken to the first and second lead-out conductive strips of the power transformer. In other words, in addition to the function of transmitting electrical signals, the first and second conductive pins of the power transformer can also dissipate heat from the rectifier transistor. In this way, the rectifier transistor does not need an additional heat sink, and the overall volume and weight of a device (such as a power supply) having the circuit board module can be reduced.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed as above with the examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some modifications and retouching without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application.
A‧‧‧軸線A‧‧‧ axis
10‧‧‧電路板模組 10‧‧‧Circuit Board Module
20‧‧‧電路板 20‧‧‧Circuit Board
21‧‧‧第一面 21‧‧‧ the first side
22‧‧‧第二面 22‧‧‧Second Side
23‧‧‧第一接墊 23‧‧‧The first pad
24‧‧‧第二接墊 24‧‧‧Second pad
25‧‧‧第三接墊 25‧‧‧The third pad
26‧‧‧線路 26‧‧‧ route
30‧‧‧整流電晶體 30‧‧‧ Rectifier transistor
32‧‧‧汲極 32‧‧‧ Drain
40‧‧‧風扇 40‧‧‧fan
100‧‧‧電源變壓器 100‧‧‧Power Transformer
110‧‧‧一次側導電片 110‧‧‧Primary side conductive sheet
120‧‧‧二次側導電片 120‧‧‧ secondary side conductive sheet
130‧‧‧第一出腳導電條 130‧‧‧The first conductive pin
140‧‧‧第二出腳導電條 140‧‧‧Second leg conductive strip
150‧‧‧中心抽頭出腳導電條 150‧‧‧ center tap out foot conductive strip
160‧‧‧鐵芯組 160‧‧‧ core set
170‧‧‧底板 170‧‧‧ floor
171‧‧‧第一穿孔 171‧‧‧first perforation
172‧‧‧第二穿孔 172‧‧‧second perforation
173‧‧‧第三穿孔 173‧‧‧ third perforation
174‧‧‧第四穿孔 174‧‧‧ Fourth perforation
175‧‧‧第五穿孔 175‧‧‧ fifth perforation
180‧‧‧第一散熱件 180‧‧‧The first heat sink
182‧‧‧第一端 182‧‧‧ the first end
184‧‧‧第二端 184‧‧‧ second end
185‧‧‧第二散熱件 185‧‧‧Second heat sink
186‧‧‧第三端 186‧‧‧ third end
188‧‧‧第四端 188‧‧‧ fourth end
圖1是依照本發明的一實施例的一種電源變壓器的示意圖。 圖2是圖1的電源變壓器的另一視角示意圖。 圖3是圖1的電源變壓器的***示意圖。 圖4是圖1的底板、第一散熱件及第二散熱件的俯視示意圖。 圖5是依照本發明的一實施例的一種電路板模組的局部示意圖。 圖6是圖5的電路板模組的另一面的示意圖。FIG. 1 is a schematic diagram of a power transformer according to an embodiment of the present invention. FIG. 2 is another perspective view of the power transformer of FIG. 1. FIG. 3 is an exploded view of the power transformer of FIG. 1. FIG. 4 is a schematic top view of the bottom plate, the first heat sink, and the second heat sink of FIG. 1. FIG. 5 is a partial schematic diagram of a circuit board module according to an embodiment of the present invention. FIG. 6 is a schematic diagram of another side of the circuit board module of FIG. 5.
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107119843A TWI658477B (en) | 2018-06-08 | 2018-06-08 | Power transformer and circuit board module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107119843A TWI658477B (en) | 2018-06-08 | 2018-06-08 | Power transformer and circuit board module |
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| Publication Number | Publication Date |
|---|---|
| TWI658477B true TWI658477B (en) | 2019-05-01 |
| TW202001944A TW202001944A (en) | 2020-01-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200915362A (en) * | 2007-09-29 | 2009-04-01 | Delta Electronics Inc | Power transformer structure |
| CN203552892U (en) * | 2013-11-19 | 2014-04-16 | 常州诚联电源制造有限公司 | Sheet-shaped pin power transformer |
| US20150009001A1 (en) * | 2012-03-21 | 2015-01-08 | Volker Karrer | Power transformer with electronic components |
-
2018
- 2018-06-08 TW TW107119843A patent/TWI658477B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200915362A (en) * | 2007-09-29 | 2009-04-01 | Delta Electronics Inc | Power transformer structure |
| US20150009001A1 (en) * | 2012-03-21 | 2015-01-08 | Volker Karrer | Power transformer with electronic components |
| CN203552892U (en) * | 2013-11-19 | 2014-04-16 | 常州诚联电源制造有限公司 | Sheet-shaped pin power transformer |
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| Publication number | Publication date |
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| TW202001944A (en) | 2020-01-01 |
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