TW202032587A - Filtering transformer device capable of achieving better high-frequency filtering characteristic - Google Patents

Filtering transformer device capable of achieving better high-frequency filtering characteristic Download PDF

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TW202032587A
TW202032587A TW108106497A TW108106497A TW202032587A TW 202032587 A TW202032587 A TW 202032587A TW 108106497 A TW108106497 A TW 108106497A TW 108106497 A TW108106497 A TW 108106497A TW 202032587 A TW202032587 A TW 202032587A
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wire
primary
bundle
wire bundle
twisted
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TW108106497A
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TWI695391B (en
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潘詠民
范仲成
許漢正
戴廷祐
鄭泓源
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帛漢股份有限公司
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Abstract

A filtering transformer device comprises an axle core and a lead bundle unit wound around the axle core. The lead bundle unit includes a primary first lead bundle having a lead, a secondary first lead bundle having a lead, a primary second lead bundle having a lead, and a secondary second lead bundle having a lead, wherein the primary first lead bundle and the secondary second lead bundle are twisted with each other into a twisted section, and the primary second lead bundle and the secondary first lead bundle are twisted with each other into another twisted section, and the two twisted sections are wound around the axle core. Each lead includes a core made of a conductive material, and an insulated outer enclosure enclosing the core. Each lead of each lead bundle is electrically connected to a plurality of electrodes with different potentials with the end of its core, respectivley.

Description

濾波變壓裝置Filter transformer

本發明是有關於一種變壓線圈,特別是指一種濾波變壓裝置。The invention relates to a transformer coil, in particular to a filter transformer device.

濾波變壓裝置若是設置在電腦主機板或介面卡上,主要是針對主機板或介面卡上的訊號進行高頻雜訊濾波,以減少高頻雜訊所帶來的非理想效應,如電磁干擾(electro-magnetic interference, EMI)。If the filter transformer device is installed on the computer motherboard or interface card, it mainly filters the high-frequency noise of the signal on the motherboard or interface card to reduce non-ideal effects caused by high-frequency noise, such as electromagnetic interference. (electro-magnetic interference, EMI).

參閱圖1及圖2,習知的濾波變壓裝置1包含一環型磁芯11,及一纏繞在該環型磁芯11的導線束12,其中,該導線束12由四條導線彼此互絞構成,以形成互感耦合的一次側電感與二次側電感,以達到對輸入訊號具有濾波的功能。該習知的濾波變壓裝置1雖然也可以對高頻輸入訊號(1MHz以上)進行濾波,但隨著電子裝置高頻的電子元件的數量增加,導致電路板上的高頻訊號隨之增加,高頻訊號造成的非理想效應也越來越嚴重,因此濾波變壓裝置在高頻濾波特性的要求也會越來越高而需要改善。1 and 2, the conventional filter transformer device 1 includes a toroidal magnetic core 11, and a wire bundle 12 wound around the toroidal magnetic core 11, wherein the wire bundle 12 is composed of four wires twisted with each other. , To form a mutual inductance coupled primary side inductor and secondary side inductor, so as to achieve the function of filtering the input signal. Although the conventional filtering and transforming device 1 can also filter high-frequency input signals (above 1MHz), as the number of high-frequency electronic components of the electronic device increases, the high-frequency signal on the circuit board increases. The non-ideal effects caused by high-frequency signals are becoming more and more serious. Therefore, the requirements for high-frequency filtering characteristics of filter transformer devices will become higher and higher and need to be improved.

因此,本發明的目的,即在提供一種濾波變壓裝置,具有較好的高頻濾波特性。Therefore, the purpose of the present invention is to provide a filter transformer device with better high-frequency filter characteristics.

於是,本發明提供了一種濾波變壓裝置,包含一軸芯,及一纏繞在該軸芯的導線束單元,該導線束單元包括一具有一導線的一次側第一導線束、一具有一導線的二次側第一導線束、一具有一導線的一次側第二導線束,及一具有一導線的二次側第二導線束,該一次側第一導線束和該二次側第二導線束彼此互絞成一互絞段,且該一次側第二導線束和該二次側第一導線束彼此互絞成另一互絞段後,該二互絞段再齊繞該軸芯,其中,每一導線具有一由導體材料構成的芯部,及一包覆該芯部且絕緣的外包部,該一次側第一導線束、該一次側第二導線束、該二次側第一導線束,及該二次側第二導線束的各導線分別以其芯部的末端電連接該等電位不同的多個電極。Therefore, the present invention provides a filtering and transforming device, which includes a shaft core and a wire harness unit wound around the shaft core. The wire harness unit includes a primary-side first wire bundle with a wire, and a wire bundle with a wire. Secondary-side first wiring harness, a primary-side second wiring harness with a wiring, and a secondary-side second wiring harness with a wiring, the primary-side first wiring harness and the secondary-side second wiring harness After twisting each other into a twisted section, and the primary-side second wire bundle and the secondary-side first wiring bundle are twisted with each other into another twisted section, the two twisted sections are wound around the shaft core, wherein, Each wire has a core made of a conductive material, and an outer covering that covers the core and is insulated, the primary side first wire bundle, the primary side second wire bundle, and the secondary side first wire bundle , And each wire of the secondary-side second wire bundle is electrically connected to a plurality of electrodes with different equipotentials at the ends of the cores.

本發明的功效在於:藉由該一次側第一導線束和該二次側第二導線束彼此互絞一互絞段,及該一次側第二導線束和該二次側第一導線束彼此互絞另一互絞段後,再由該二互絞段齊繞該軸芯,以增加線圈電感的自感與互感的磁通量,而具有更好的高頻濾波特性。The effect of the present invention is that the first wire bundle on the primary side and the second wire bundle on the secondary side twist to each other by a twisted section, and the second wire bundle on the primary side and the first wire bundle on the secondary side are mutually twisted. After twisting another twisted section, the two twisted sections wind the shaft core to increase the self-inductance of the coil inductance and the magnetic flux of mutual inductance, and have better high-frequency filtering characteristics.

在本發明被詳細描述之前,應當注意在以下的說明內容中,類似的元件是以相同的編號來表示。Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

參閱圖3、圖4,本發明濾波變壓裝置2的一第一實施例,包含一軸芯21,及一纏繞在該軸芯21的導線束單元22。Referring to FIGS. 3 and 4, a first embodiment of the filtering and transforming device 2 of the present invention includes a shaft core 21 and a wire harness unit 22 wound around the shaft core 21.

該軸芯21可以是條狀或環形的鐵芯,也可以是條狀或環形的磁芯,但不以此為限,在本實施例中,該軸芯21是一環形的磁芯。The shaft core 21 can be a strip-shaped or ring-shaped iron core, and can also be a strip-shaped or ring-shaped magnetic core, but is not limited to this. In this embodiment, the shaft core 21 is a ring-shaped magnetic core.

該導線束單元22包括一個一次側第一導線束23、一個二次側第二導線束24、一個一次側第二導線束25,及一個二次側第一導線束26,該一次側第一導線束23及該一次側第二導線束25分別具有二彼此相貼靠且軸心平行的導線28,該二次側第二導線束24及該二次側第一導線束26分別具有一導線28,各導線28分別具有一由導體材料構成的芯部281,及一包覆該芯部281且絕緣的外包部282(如圖5所示),在本實施例中,每一導線28為一漆包線,且各導線28的芯部281截面積皆相同,但不以此為限。The wiring harness unit 22 includes a primary-side first wiring harness 23, a secondary-side second wiring harness 24, a primary-side second wiring harness 25, and a secondary-side first wiring harness 26. The wire harness 23 and the primary-side second wire harness 25 respectively have two wires 28 that abut each other and have their axes parallel to each other. The secondary-side second wire harness 24 and the secondary-side first wire harness 26 each have a wire 28. Each wire 28 has a core portion 281 made of conductive material, and an outer covering portion 282 (as shown in FIG. 5) that covers the core portion 281 and is insulated. In this embodiment, each wire 28 is An enameled wire, and the cross-sectional area of the core portion 281 of each wire 28 is the same, but not limited to this.

參閱圖4,該一次側第一導線束23與該二次側第二導線束24先彼此互絞為一互絞段27(如圖4所示),該一次側第二導線束25與該二次側第一導線束26先彼此互絞為另一互絞段27(如圖4所示),然後該二互絞段27再平行齊繞該軸芯21,而沒有纏繞該軸芯21的各導線28的末端段露出其芯部281,以分別電連接多個電位不同的電極。4, the primary side first wire harness 23 and the secondary side second wire harness 24 are twisted to each other to form a twisted section 27 (as shown in FIG. 4), the primary side second wire harness 25 and the The first wire harness 26 on the secondary side is first twisted into another twisted section 27 (as shown in FIG. 4), and then the two twisted sections 27 are wound around the shaft core 21 in parallel without winding the shaft core 21 The end section of each wire 28 is exposed to its core 281 to electrically connect a plurality of electrodes with different potentials.

該一次側第一導線束23的一第一末端段231電連接一第一電極(圖未示),該一次側第一導線束23的一第二末端段232電連接一電位低於該第一電極的第二電極(圖未示),該二次側第二導線束24的一第三末端段241電連接一第七電極(圖未示),該二次側第二導線束24的一第四末端段242電連接一電位低於該第七電極的第八電極(圖未示),該一次側第二導線束25的一第五末端段251電連接一第三電極(圖未示),該一次側第二導線束25的一第六末端段252電連接一電位低於該第三電極的第四電極(圖未示),該二次側第一導線束26的一第七末端段261電連接一第七電極(圖未示),該二次側第一導線束26的一第八末端段262電連接一電位低於該第七電極的第八電極(圖未示)。每一導線束與每一電極的電連接可以是具導電性的焊接或穿設連接,但不以此為限,在該本實施例中,導線束與電極的電連接為具導電性的焊接。A first end section 231 of the primary-side first wire harness 23 is electrically connected to a first electrode (not shown), and a second end section 232 of the primary-side first wire harness 23 is electrically connected to a potential lower than the first electrode A second electrode (not shown) of an electrode, a third end section 241 of the secondary-side second wire bundle 24 is electrically connected to a seventh electrode (not shown), the secondary-side second wire bundle 24 A fourth end section 242 is electrically connected to an eighth electrode (not shown) with a lower potential than the seventh electrode, and a fifth end section 251 of the primary-side second wire bundle 25 is electrically connected to a third electrode (not shown) (Shown), a sixth end section 252 of the primary-side second wire harness 25 is electrically connected to a fourth electrode (not shown) that has a lower potential than the third electrode, and a second-end section of the secondary-side first wire harness 26 The seven terminal section 261 is electrically connected to a seventh electrode (not shown), and an eighth terminal section 262 of the secondary-side first wire harness 26 is electrically connected to an eighth electrode (not shown in the figure) which has a lower potential than the seventh electrode ). The electrical connection between each wire harness and each electrode can be conductive welding or through-through connection, but is not limited to this. In this embodiment, the electrical connection between the wire harness and the electrode is conductive welding .

參閱圖6,本發明濾波變壓裝置2的該第一實施例的等效電路圖,纏繞在該軸芯21的一次側第一導線束23形成一次側的一對電感,纏繞在該軸芯21的一次側第二導線束25形成一次側的另一對電感,纏繞在該軸芯21的二次側第一導線束26形成二次側的一個電感,纏繞在該軸芯21的二次側第二導線束24形成二次側的另一個電感。該第二末端段232與該第五末端段251,可形成一次側的中心抽頭。該第三末端段241與該第八末端段254,可形成二次側的中心抽頭,並藉一次側的線圈電感的總匝數(纏繞圈數)與二次側的等效線圈電感的總匝數相同,而在輸入訊號時濾波,特別是輸入訊號是高頻輸入訊號(1MHz以上)時有更佳的濾波功能。Referring to FIG. 6, the equivalent circuit diagram of the first embodiment of the filtering and transforming device 2 of the present invention. The first wire bundle 23 wound on the primary side of the shaft core 21 forms a pair of inductors on the primary side, and is wound on the shaft core 21 The second wire bundle 25 on the primary side forms another pair of inductances on the primary side, and the first wire bundle 26 is wound on the secondary side of the core 21 to form an inductor on the secondary side, which is wound on the secondary side of the core 21 The second wire bundle 24 forms another inductance on the secondary side. The second end section 232 and the fifth end section 251 can form a central tap on the primary side. The third end section 241 and the eighth end section 254 can form the center tap of the secondary side, and use the total number of turns (number of windings) of the primary side coil inductance and the total of the equivalent coil inductance of the secondary side. The number of turns is the same, and the input signal is filtered, especially when the input signal is a high-frequency input signal (above 1MHz), there is a better filtering function.

參閱圖7、圖8,上述本發明的第一實施例與習知的濾波變壓裝置1輸入具不同頻率的訊號時,自圖7所示可知,本發明的第一實施例的插入損失(單位為分貝)對不同輸入訊號頻率的表現(正方形標記折線),皆小於該習知的濾波變壓裝置1,尤其是較高頻的情況下,插入損失的差異越大。自圖8所示可知,本發明的第一實施例(正方形標記折線)的回波損失對不同輸入訊號頻率的表現,除了1MHz外,皆大於該習知的濾波變壓裝置1(菱形標記折線)對不同輸入訊號頻率的表現,證明本實施例藉由該一次側第一導線束23與該二次側第二導線束24彼此互絞,該一次側第二導線束25與該二次側第一導線束26彼此互絞後,再將二互絞後的互絞段27以平行方式齊繞該軸芯21,加強線圈電感的自感與互感的磁通量,達到較好的高頻濾波功效。7 and 8, when the first embodiment of the present invention and the conventional filtering and transforming device 1 input signals with different frequencies, it can be seen from FIG. 7 that the insertion loss of the first embodiment of the present invention ( The unit is decibel) for different input signal frequency performance (square marked broken line), are all smaller than the conventional filter transformer device 1, especially in the case of higher frequencies, the greater the difference in insertion loss. As shown in Fig. 8, it can be seen that the echo loss of the first embodiment of the present invention (square marked broken line) has greater performance on different input signal frequencies, except for 1MHz, which is greater than that of the conventional filter transformer 1 (diamond marked broken line). ) The performance of different input signal frequencies proves that in this embodiment, the primary side first wire bundle 23 and the secondary side second wire bundle 24 are twisted with each other, and the primary side second wire bundle 25 and the secondary side After the first wire bundle 26 is twisted to each other, the two twisted twisted sections 27 are wound around the shaft core 21 in parallel to strengthen the self-inductance of the coil inductance and the magnetic flux of mutual inductance to achieve better high-frequency filtering effect. .

參閱圖9,本發明濾波變壓裝置的一第二實施例與該第一實施例相似,其差異在於該第二實施例的濾波變壓裝置的該一次側第二導線束25只具有一條導線28,但依舊是該一次側第一導線束23與該二次側第二導線束24彼此互絞,該一次側第二導線束25與該二次側第一導線束26彼此互絞後,再將二互絞後的互絞段27以平行方式齊繞該軸芯21,故,仍可達到輸入高頻輸入訊號時達到好的濾波特性。類似地,在另一不同的實施方式,也可以是該一次側第一導線束23只具有一條導線28。Referring to FIG. 9, a second embodiment of the filtering and transforming device of the present invention is similar to the first embodiment. The difference is that the primary side second wire bundle 25 of the filtering and transforming device of the second embodiment has only one wire. 28, but still the primary side first wire bundle 23 and the secondary side second wire bundle 24 are twisted to each other, and the primary side second wire bundle 25 and the secondary side first wire bundle 26 are twisted to each other, Then, the two twisted twisted sections 27 are wound around the shaft core 21 in parallel, so that it can still achieve good filtering characteristics when inputting high-frequency input signals. Similarly, in another different embodiment, the primary-side first wire bundle 23 may have only one wire 28.

參閱圖10,本發明濾波變壓裝置的一第三實施例與該第一實施例相似,其差異在於該第三實施例的濾波變壓裝置的該一次側第一導線束23及該一次側第二導線束25分別只具有一條導線28,但依舊是該一次側第一導線束23與該二次側第二導線束24彼此互絞,該一次側第二導線束25與該二次側第一導線束26彼此互絞後,再將二互絞後的互絞段27以平行方式齊繞該軸芯21,故,仍可達到輸入高頻輸入訊號時達到好的濾波特性。Referring to FIG. 10, a third embodiment of the filtering and transforming device of the present invention is similar to the first embodiment, and the difference lies in the primary side first wire bundle 23 and the primary side of the filtering and transforming device of the third embodiment The second wire bundle 25 has only one wire 28, but the primary side first wire bundle 23 and the secondary side second wire bundle 24 are twisted with each other. The primary side second wire bundle 25 and the secondary side After the first wire bundle 26 is twisted to each other, the two twisted twisted sections 27 are wound around the shaft core 21 in a parallel manner, so that good filtering characteristics can still be achieved when high-frequency input signals are input.

綜上所述,本發明濾波變壓裝置藉由纏繞在該軸芯21並具有不同導線數目的一次側的各導線束,分別與二次側的各導線束先對應地進行彼此互絞後,再將二互絞後的互絞段27平行齊繞在該軸芯21,於輸入訊號時形成一次側的線圈電感和二次側的線圈電感,而可對輸入訊號濾波,特別是輸入訊號為高頻輸入訊號(1MHz以上)時有極佳的濾波特性,故確實達到本發明的創作目的。To sum up, the filter transformer device of the present invention twists the wire bundles on the primary side with different numbers of wires on the shaft core 21 and twists the wire bundles on the secondary side accordingly. Then the two twisted twisted sections 27 are wound in parallel on the shaft core 21 to form the primary side coil inductance and the secondary side coil inductance when the signal is input, which can filter the input signal, especially the input signal is The high frequency input signal (above 1MHz) has excellent filtering characteristics, so the creative purpose of the present invention is indeed achieved.

惟以上所述者,僅為本發明的實施例而已,當不能以此限定本發明實施的範圍,凡是依本發明申請專利範圍及專利說明書內容所作的簡單的等效變化與修飾,皆仍屬本發明專利涵蓋的範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent for the present invention.

1:習知的濾波變壓裝置 11:磁芯 12:導線束 2:濾波變壓裝置 21:軸芯 22:導線束單元 23:一次側第一導線束 231:第一末端段 232:第二末端段 24:二次側第二導線束 241:第三末端段 242:第四末端段 25:一次側第二導線束 251:第五末端段 252:第六末端段 26:二次側第一導線束 261:第七末端段 262:第八末端段 27:互絞段 28:導線 281:芯部 282:外包部 1: Conventional filter transformer 11: Magnetic core 12: Wire harness 2: Filtering transformer 21: Axle 22: Wire harness unit 23: The first wire harness on the primary side 231: First end section 232: second end section 24: Secondary side second wire harness 241: third end section 242: Fourth end section 25: Primary side second wire harness 251: Fifth end section 252: The sixth end section 26: Secondary side first wire harness 261: Seventh end segment 262: Eighth end segment 27: Twisting section 28: Wire 281: Core 282: Outsourcing Department

本發明的其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中:  圖1是一立體示意圖,說明一習知的濾波變壓裝置;  圖2是一立體示意圖,說明該習知濾波變壓裝置的一由單四線互絞構成的導線束;  圖3是一立體示意圖,說明本發明濾波變壓裝置的一第一實施例;  圖4是一立體示意圖,說明該第一實施例的二互絞段;  圖5是一剖視圖,說明該第一實施例的一導線結構;  圖6是一等效電路圖,輔助說明本發明濾波變壓裝置的該第一實施例;  圖7是一折線圖,說明該第一實施例與該習知濾波變壓裝置在不同頻率下的插入損耗比較;  圖8是一折線圖,說明該第一實施例與該習知濾波變壓裝置在不同頻率下的回波損耗比較;  圖9是一立體示意圖,說明本發明濾波變壓裝置的一第二實施例的二互絞段;及  圖10是一立體示意圖,說明本發明濾波變壓裝置的一第三實施例的二互絞段。Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a three-dimensional schematic diagram illustrating a conventional filter transformer device; Figure 2 is a three-dimensional schematic diagram illustrating the A wire bundle composed of a single four-wire twisting of the conventional filtering and transforming device; Figure 3 is a three-dimensional schematic diagram illustrating a first embodiment of the filtering and transforming device of the present invention; Figure 4 is a three-dimensional schematic diagram illustrating the first embodiment of the present invention. The two twisted sections of an embodiment; Fig. 5 is a cross-sectional view illustrating a wire structure of the first embodiment; Fig. 6 is an equivalent circuit diagram to assist in explaining the first embodiment of the filter transformer device of the present invention; 7 is a broken line diagram illustrating the comparison of the insertion loss of the first embodiment and the conventional filtering and transforming device at different frequencies; Fig. 8 is a broken line diagram illustrating the first embodiment and the conventional filtering and transforming device Comparison of the return loss at different frequencies; Figure 9 is a three-dimensional schematic diagram illustrating the two twisted sections of a second embodiment of the filter transformer device of the present invention; and Figure 10 is a three-dimensional schematic diagram illustrating the filter transformer of the present invention The two twisted sections of a third embodiment of the device.

2:濾波變壓裝置 2: Filtering transformer

21:軸芯 21: Axle

22:導線束單元 22: Wire harness unit

23:一次側第一導線束 23: The first wire harness on the primary side

24:二次側第二導線束 24: Secondary side second wire harness

25:一次側第二導線束 25: Primary side second wire harness

26:二次側第一導線束 26: Secondary side first wire harness

27:互絞段 27: Twisting section

Claims (3)

一種濾波變壓裝置,用以電連接電位不同的多個電極,包含: 一軸芯;及 一導線束單元,包括一具有一導線的一次側第一導線束、一具有一導線的二次側第一導線束、一具有一導線的一次側第二導線束,及一具有一導線的二次側第二導線束,該一次側第一導線束和該二次側第二導線束彼此互絞成一互絞段,且該一次側第二導線束和該二次側第一導線束彼此互絞成另一互絞段後,該二互絞段再齊繞該軸芯,其中,每一導線具有一由導體材料構成的芯部,及一包覆該芯部且絕緣的外包部,該一次側第一導線束、該一次側第二導線束、該二次側第一導線束,及該二次側第二導線束的各導線分別以其芯部的末端電連接該等電位不同的多個電極。A filter transformer device for electrically connecting a plurality of electrodes with different potentials, comprising: a shaft core; and a wire harness unit, including a primary side first wire harness with a wire, and a secondary side second wire with a wire A wiring harness, a primary-side second wiring harness with a wiring, and a secondary-side second wiring harness with a wiring, the primary-side first wiring harness and the secondary-side second wiring harness are twisted with each other into one Twisted section, and after the primary side second wire bundle and the secondary side first wire bundle are twisted with each other to form another twisted section, the two twisted sections are wound around the shaft core, wherein each wire has A core part made of a conductive material, and an outer covering part covering the core part and insulating, the primary side first wire bundle, the primary side second wire bundle, the secondary side first wire bundle, and the two Each wire of the second wire bundle on the secondary side is electrically connected to a plurality of electrodes with different equipotentials at the ends of the cores. 如請求項1所述的濾波變壓裝置,其中,該一次側第一導線束或該一次側第二導線束還具有一導線,具有二導線的該一次側第一導線束或該一次側第二導線束的二導線彼此相貼靠。The filtering and transforming device according to claim 1, wherein the primary-side first wire bundle or the primary-side second wire bundle further has a wire, and the primary-side first wire bundle or the primary-side first wire bundle with two wires The two wires of the two wire bundles abut each other. 如請求項1所述的濾波變壓裝置,其中,該一次側第一導線束及該一次側第二導線束分別還具有一導線,該一次側第一導線束的二導線彼此相貼靠,且該一次側第二導線束的二導線彼此相貼靠。The filtering and transforming device according to claim 1, wherein the primary-side first wire bundle and the primary-side second wire bundle each further have a wire, and the two wires of the primary-side first wire bundle abut each other, And the two wires of the second wire harness on the primary side abut against each other.
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