TW201435662A - Combinational transformer and contactless battery charging device using the same - Google Patents
Combinational transformer and contactless battery charging device using the same Download PDFInfo
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Abstract
Description
本發明是有關於一種變壓器,特別是指一種組合式變壓器與一種使用該組合式變壓器的非接觸電池充電裝置。 The present invention relates to a transformer, and more particularly to a combined transformer and a non-contact battery charging device using the combined transformer.
通常安裝於一觸控筆中用來供應電力的一次性電池是設計來使用一次即丟。因此,這類的觸控筆必須頻繁地更換電池,從而造成使用上的不便。再者,電池更換的頻繁需求更導致額外成本與環境問題。 A disposable battery that is typically installed in a stylus to supply power is designed to be used once and lost. Therefore, such a stylus must frequently replace the battery, resulting in inconvenience in use. Moreover, the frequent need for battery replacement leads to additional cost and environmental issues.
習知用以對觸控筆充電的電池充電器通常利用一插頭連接器(plug connector)插入到一設於觸控筆的插孔連接器(jack connector),建立於充電期間的電性連接。插頭連接器和插孔連接器的每一個具有容易氧化的外露電性接觸點。插頭連接器可能因碰撞而變形。因此,插頭連接器的劣化可能引起插頭連接器與插孔連接器間的不良電性連接。 Conventionally, a battery charger for charging a stylus is typically inserted into a jack connector provided to the stylus using a plug connector to establish an electrical connection during charging. Each of the plug connector and the jack connector has an exposed electrical contact point that is susceptible to oxidation. The plug connector may be deformed by a collision. Therefore, deterioration of the plug connector may cause a poor electrical connection between the plug connector and the jack connector.
因此,前述技術仍有待改善的空間。 Therefore, the aforementioned technology still has room for improvement.
因此,本發明之目的,即在提供一種使用組合式變壓器的非接觸電池充電裝置,其能克服先前技術的上述缺失。 Accordingly, it is an object of the present invention to provide a non-contact battery charging apparatus using a combined transformer that overcomes the above-described deficiencies of the prior art.
根據本發明的一觀點,提供有一種適用於電池充電裝置中用以對一觸控筆充電的組合式變壓器。本發明組合式變壓器包含一管狀絕緣線管、一個一次繞組、一個長磁芯和一個二次繞組。 According to an aspect of the present invention, a combined transformer suitable for charging a stylus in a battery charging device is provided. The combined transformer of the present invention comprises a tubular insulated conduit, a primary winding, a long magnetic core and a secondary winding.
管狀絕緣線管准許該觸控筆貫穿其本身。一次繞組直接捲繞到該管狀絕緣線管。磁芯係適於被同軸固定在該觸控筆中。當該觸控筆經由該管狀絕緣線管延伸要被充電時,一部分的磁芯係同軸位於該管狀絕緣線管中,以使得該一次繞組係同軸設置環繞該部分磁芯。該二次繞組係適於設置在該觸控筆中,且直接捲繞到該磁芯上。當該觸控筆經由該管狀絕緣線管延伸時,該二次繞組與該一次繞組同軸。 A tubular insulated conduit allows the stylus to penetrate through itself. The primary winding is wound directly onto the tubular insulated conduit. The magnetic core is adapted to be coaxially fixed in the stylus. When the stylus is extended to be charged via the tubular insulated conduit, a portion of the magnetic core is coaxially disposed in the tubular insulated conduit such that the primary winding is coaxially disposed around the portion of the core. The secondary winding is adapted to be disposed in the stylus and wound directly onto the magnetic core. The secondary winding is coaxial with the primary winding when the stylus extends through the tubular insulated conduit.
根據本發明的另一觀點,提供有一種用以對一觸控筆充電的非接觸電池充電裝置。本發明非接觸電池充電裝置包含一筆座、一組合式變壓器、一個頻率信號產生器和一充電器。 According to another aspect of the present invention, a non-contact battery charging device for charging a stylus is provided. The contactless battery charging device of the present invention comprises a one-seat, a combined transformer, a frequency signal generator and a charger.
筆座具有一個用以容納該觸控筆的插座。該插座具有一允許該觸控筆經由其插入到該插座中的開口。 The pen holder has a socket for receiving the stylus. The socket has an opening that allows the stylus to be inserted through the socket.
組合式變壓器包括一管狀絕緣線管、一個一次繞組、一個長磁芯和一個二次繞組。該管狀絕緣線管被固 定在該筆座的插座中並准許該觸控筆貫穿其本身。一次繞組係直接捲繞到該管狀絕緣線管上。該磁芯係適於被同軸固定在該觸控筆中。當該觸控筆經由該開口被插入到該筆座的插座中並經由該管狀絕緣線管延伸要被充電時,一部分的磁芯係同軸位於該管狀絕緣線管,以使得該一次繞組被同軸設置環繞該部分磁芯。該二次繞組係適於被設置在該觸控筆中並直接捲繞到該磁芯上。當該觸控筆經由該管狀絕緣線管延伸時,該二次繞組與該一次繞組同軸。 The combined transformer includes a tubular insulated conduit, a primary winding, a long core, and a secondary winding. The tubular insulated wire tube is fixed It is placed in the socket of the pen holder and allows the stylus to penetrate through itself. The primary winding is wound directly onto the tubular insulated conduit. The magnetic core is adapted to be coaxially secured in the stylus. When the stylus is inserted into the socket of the pen holder via the opening and is to be charged via the tubular insulated wire tube, a part of the magnetic core is coaxially located on the tubular insulated wire tube, so that the primary winding is coaxial Set the core around the part. The secondary winding is adapted to be disposed in the stylus and wound directly onto the magnetic core. The secondary winding is coaxial with the primary winding when the stylus extends through the tubular insulated conduit.
頻率信號產生器係設於該筆座,用以產生一個高頻電壓信號並將該高頻電壓信號施加至該組合式變壓器的一次繞組。 A frequency signal generator is disposed in the pen holder for generating a high frequency voltage signal and applying the high frequency voltage signal to a primary winding of the combined transformer.
充電器係適於被設置在該觸控筆中,並具有該磁芯和該組合式變壓器的二次繞組的組合。該充電器係可操作來根據跨於該組合式變壓器的一次繞組的一輸入電壓,將一充電電壓供應給該觸控筆的可充電電池。 A charger is adapted to be disposed in the stylus and has a combination of the magnetic core and a secondary winding of the combined transformer. The charger is operable to supply a charging voltage to the rechargeable battery of the stylus based on an input voltage across a primary winding of the modular transformer.
當該觸控筆被插入到該筆座的插座中要被充電時,該充電器將一利用在高頻震盪下的電磁感應於該組合式變壓器的二次繞組所感應的輸出電壓轉換成該充電電壓。 When the stylus is inserted into the socket of the pen holder to be charged, the charger converts an output voltage induced by the secondary winding of the combined transformer by electromagnetic induction under high frequency oscillation into the Charging voltage.
10‧‧‧充電座 10‧‧‧ charging stand
11‧‧‧筆座 11‧‧‧ pen seat
111‧‧‧上開口 111‧‧‧Opening
112‧‧‧插座 112‧‧‧ socket
12‧‧‧頻率信號產生器 12‧‧‧ Frequency signal generator
13‧‧‧絕緣線管 13‧‧‧Insulated wire tube
20‧‧‧充電器 20‧‧‧Charger
21‧‧‧整流濾波電路 21‧‧‧Rectifier filter circuit
22‧‧‧充電電路 22‧‧‧Charging circuit
300‧‧‧平板電腦 300‧‧‧ tablet
30‧‧‧電腦殼體 30‧‧‧ computer case
32‧‧‧容納槽 32‧‧‧ accommodating slot
40‧‧‧觸控筆 40‧‧‧ stylus
41‧‧‧筆桿 41‧‧‧ pen
411‧‧‧書寫端 411‧‧‧ writing end
412‧‧‧插入端 412‧‧‧Insert
42‧‧‧可充電電池 42‧‧‧Rechargeable battery
C‧‧‧磁芯 C‧‧‧ magnetic core
T‧‧‧組合式變壓器 T‧‧‧Combined transformer
Wp‧‧‧一次繞組 Wp‧‧‧First winding
Ws‧‧‧二次繞組 Ws‧‧‧ secondary winding
本發明之其他的特徵及功效,將於參照圖式的較佳實施例詳細說明中清楚地呈現,其中:圖1是一透視圖,顯示本發明用以對一觸控筆充電的非接觸電池充電裝置的第一較佳實施例; 圖2是一概要電路方塊圖,說明第一較佳實施例;圖3是一不完整的部分截面概要視圖,說明在非組合狀態下,第一較佳實施例的組合式變壓器;圖4是一不完整的截面概要視圖,說明在組合狀態下,第一較佳實施例的組合式變壓器;圖5是一概要視圖,顯示本發明用以對一觸控筆充電的非接觸電池充電裝置的第二較佳實施例;及圖6是一概要視圖,顯示第二較佳實施例的一種變化。 Other features and advantages of the present invention will be apparent from the detailed description of the preferred embodiments illustrated in the accompanying drawings in which: FIG. 1 is a perspective view showing a non-contact battery for charging a stylus of the present invention. a first preferred embodiment of a charging device; Figure 2 is a schematic block diagram showing a first preferred embodiment; Figure 3 is an incomplete partial cross-sectional schematic view showing the combined transformer of the first preferred embodiment in a non-combined state; Figure 4 is An incomplete cross-sectional overview view illustrating the combined transformer of the first preferred embodiment in a combined state; FIG. 5 is a schematic view showing the non-contact battery charging device of the present invention for charging a stylus A second preferred embodiment; and Figure 6 is a schematic view showing a variation of the second preferred embodiment.
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 denoted by the same reference numerals.
參閱圖1至圖4,本發明用以對一觸控筆40充電的非接觸電池充電裝置的第一較佳實施例包括一筆座11、一組合式變壓器T、一頻率信號產生器12及一充電器20。觸控筆40包括一筆桿41,和一個安裝於筆桿41的可充電電池42。本實施例中,筆桿41具有一書寫端411,與一個相反於書寫端411的錐狀插入端412。 Referring to FIG. 1 to FIG. 4, a first preferred embodiment of the non-contact battery charging device for charging a stylus pen 40 of the present invention comprises a socket 11, a combined transformer T, a frequency signal generator 12 and a Charger 20. The stylus pen 40 includes a pendulum 41 and a rechargeable battery 42 mounted to the pen tip 41. In the present embodiment, the pen holder 41 has a writing end 411 opposite to the tapered insertion end 412 of the writing end 411.
筆座11具有一個用以容納觸控筆40的插座112。本例中,插座112具有一上開口111,其只允許觸控筆40的筆桿41的插入端412經由其插入到插座112中(見圖3)。這樣,觸控筆40就能藉著上開口111而定位,且被筆座11所支撐(見圖4)。 The pen holder 11 has a socket 112 for receiving the stylus pen 40. In this example, the socket 112 has an upper opening 111 that allows only the insertion end 412 of the barrel 41 of the stylus 40 to be inserted into the socket 112 (see FIG. 3). Thus, the stylus pen 40 can be positioned by the upper opening 111 and supported by the pen holder 11 (see Fig. 4).
組合式變壓器T包括一管狀絕緣線管13、一個一次繞組Wp、一個長磁芯C,以及一個二次繞組Ws。 The combined transformer T includes a tubular insulated wire tube 13, a primary winding Wp, a long magnetic core C, and a secondary winding Ws.
絕緣線管13由塑料製成,且固定於筆座11的插座112中。絕緣線管13允許觸控筆40的筆桿41的插入端412貫穿其本身。 The insulated wire tube 13 is made of plastic and is fixed in the socket 112 of the pen holder 11. The insulated conduit 13 allows the insertion end 412 of the sheath 41 of the stylus 40 to penetrate through itself.
一次繞組Wp係直接捲繞到絕緣線管13上。 The primary winding Wp is wound directly onto the insulated wire tube 13.
磁芯C是適於被同軸固定在觸控筆40的筆桿41中。當觸控筆40的筆桿41的插入端412經由上開口111插入到筆座11的插座112中並貫穿絕緣線管13要被充電時,一部分的磁芯C係同軸位於絕緣線管13中,使得一次繞組Wp被同軸設置環繞該部分磁芯C。本實施例中,為了達到最大磁激效應,整個磁芯C被同軸設置於觸控筆40的筆桿41的插入端412(見圖3)中,使得當觸控筆40被插入到筆座11中要被充電時(見圖4),一次繞組Wp係同軸設置環繞該整個磁芯C。 The magnetic core C is adapted to be coaxially fixed in the pen holder 41 of the stylus pen 40. When the insertion end 412 of the pen holder 41 of the stylus pen 40 is inserted into the socket 112 of the pen holder 11 via the upper opening 111 and is to be charged through the insulated wire tube 13, a part of the magnetic core C is coaxially located in the insulated wire tube 13, The primary winding Wp is coaxially disposed around the partial core C. In the present embodiment, in order to achieve the maximum magnetic excitation effect, the entire magnetic core C is coaxially disposed in the insertion end 412 (see FIG. 3) of the sheath 41 of the stylus pen 40, so that when the stylus pen 40 is inserted into the pen holder 11 When it is to be charged (see Fig. 4), the primary winding Wp is coaxially disposed around the entire core C.
二次繞組Ws係適於被設置在觸控筆40的筆桿41中並直接捲繞到磁芯C上。當觸控筆40的筆桿41的插入端412貫穿絕緣線管13時,二次繞組Ws與一次繞組Wp同軸。當觸控筆40與筆座11分離時,組合式變壓器T處於一非組合狀態。 The secondary winding Ws is adapted to be disposed in the sheath 41 of the stylus pen 40 and wound directly onto the magnetic core C. When the insertion end 412 of the sheath 41 of the stylus pen 40 penetrates the insulated wire tube 13, the secondary winding Ws is coaxial with the primary winding Wp. When the stylus pen 40 is separated from the pen holder 11, the combined transformer T is in a non-combined state.
當觸控筆40被插入到筆座11要被充電時,組合式變壓器T處於一組合狀態。當組合式變壓器T處於組合狀態,組合式變壓器T能夠藉由一次繞組Wp和二次繞組Ws間的電感耦合來轉換能量。一次繞組Wp的變化電流產生了磁芯C的變化磁通量以及從而通過二次繞組Ws的變化磁通量。此變化的磁通量感應出於二次繞組Ws的一變
化電動勢(electromotive force,EMF),或一跨於二次繞組Ws的輸出電壓Vs。這個效應稱作電感耦合。跨於該二次繞組Ws所感應出的輸出電壓Vs可從法拉第(Faraday)感應定律所獲得,其內容為:
取Vs和Vp之方程式(1)和(2)的比例得到以下方程式:
頻率信號產生器12係設置於筆座11內,用以產生一個高頻電壓信號,其是一弦波信號和一方波信號的其中之一。頻率信號產生器12係耦接至一次繞組Wp,用於將高頻電壓信號施加至一次繞組Wp。 The frequency signal generator 12 is disposed in the pen holder 11 for generating a high frequency voltage signal, which is one of a sine wave signal and a square wave signal. The frequency signal generator 12 is coupled to the primary winding Wp for applying a high frequency voltage signal to the primary winding Wp.
請注意,筆座11配合絕緣線管13和一次繞組Wp的組合以及頻率信號產生器12構成一充電座10。 Note that the pen holder 11 cooperates with the combination of the insulated wire tube 13 and the primary winding Wp and the frequency signal generator 12 to constitute a charging stand 10.
充電器20係適於被在設置於觸控筆40的筆桿41中並具有磁芯C和的二次繞組Ws的組合。充電器20係可操作來根據跨於組合式變壓器T的一次繞組Wp的輸入電壓Vp,供應一充電電壓給觸控筆40的可充電電池42。當觸控筆40被插入筆座11的插座112中要被充電時,充電器20將利用在高頻震盪下的電磁感應於二次繞組Ws所感應的輸出電壓Vs轉換成該充電電壓。本實施例中,充電器20包括一個整流濾波電路21,和一個充電電路22。整流濾波電路21係耦接至二次繞組Ws,用於將跨於二次繞組Ws的輸出電壓Vs整流且濾波,以便產生一直流電壓。充電電路22係耦接至整流濾波電路21,用於將來自整流濾波電路21的直流電壓轉換成該充電電壓,並然後將該充電電壓供應給觸控筆40的可充電電池42。 The charger 20 is adapted to be combined in a sheath 41 provided in the stylus pen 40 and having a magnetic core C and a secondary winding Ws. The charger 20 is operable to supply a charging voltage to the rechargeable battery 42 of the stylus 40 in accordance with an input voltage Vp across the primary winding Wp of the combined transformer T. When the stylus pen 40 is inserted into the socket 112 of the pen holder 11 to be charged, the charger 20 converts the output voltage Vs induced by the secondary winding Ws by electromagnetic induction under high frequency oscillation into the charging voltage. In the present embodiment, the charger 20 includes a rectifying and filtering circuit 21, and a charging circuit 22. The rectifying and filtering circuit 21 is coupled to the secondary winding Ws for rectifying and filtering the output voltage Vs across the secondary winding Ws to generate a DC voltage. The charging circuit 22 is coupled to the rectifying and filtering circuit 21 for converting the DC voltage from the rectifying and filtering circuit 21 into the charging voltage, and then supplying the charging voltage to the rechargeable battery 42 of the stylus pen 40.
在此配置下,觸控筆40在插入到筆座11中時,容易被本發明非接觸電池充電裝置充電,因此導致使用上的方便。再者,本發明非接觸電池充電裝置利用了無須電性接觸點的電磁感應,因此避免了因為電性接觸點氧化而造成不良電性傳導。 In this configuration, the stylus pen 40 is easily charged by the non-contact battery charging device of the present invention when inserted into the pen holder 11, thus resulting in convenience in use. Furthermore, the non-contact battery charging device of the present invention utilizes electromagnetic induction that does not require electrical contact points, thereby avoiding poor electrical conduction due to oxidation of the electrical contact points.
圖5繪示本發明用以對一觸控筆40充電的非接觸電池充電裝置的第二較佳實施例,其為第一較佳實施例的修飾。本實施例中,該充電座係設於一種與觸控筆40搭配使用之可攜式電腦,例如一平板電腦300中。平板電腦 300具有一個電腦殼體30,其用作充電座的筆座。電腦殼體30具有一個形成有向上延伸之容納槽32的底側,容納槽32係相鄰於一側邊設置並用作筆座的插座,用於容納整個觸控筆40。本實施例中,一次繞組Wp和絕緣線管13的組合被固定於容納槽32中並被設置相鄰於電腦殼體30的頂側。這樣,當觸控筆40被插入容納槽32中以便移動到一充電位置時,磁芯C和二次繞組Ws的組合係位於絕緣線管13中,且觸控筆40的筆桿的書寫端係相鄰於電腦殼體30的底側。在此情況下,觸控筆40於是能被充電。 FIG. 5 illustrates a second preferred embodiment of the non-contact battery charging apparatus of the present invention for charging a stylus pen 40, which is a modification of the first preferred embodiment. In this embodiment, the charging stand is disposed in a portable computer, such as a tablet computer 300, for use with the stylus pen 40. tablet The 300 has a computer housing 30 that serves as a pen holder for the charging stand. The computer casing 30 has a bottom side formed with an upwardly extending receiving groove 32 which is disposed adjacent to one side and serves as a socket for the pen holder for accommodating the entire stylus pen 40. In the present embodiment, the combination of the primary winding Wp and the insulated bobbin 13 is fixed in the accommodating groove 32 and disposed adjacent to the top side of the computer case 30. Thus, when the stylus pen 40 is inserted into the accommodating groove 32 to be moved to a charging position, the combination of the magnetic core C and the secondary winding Ws is located in the insulated wire tube 13, and the writing end of the stylus pen 40 is written. Adjacent to the bottom side of the computer housing 30. In this case, the stylus pen 40 can then be charged.
圖6繪示第二較佳實施例的一種變化。圖6的非接觸電池充電裝置異於圖5的非接觸電池充電裝置之處在於,一次繞組Wp和絕緣線管13的組合係設置相鄰於電腦殼體30的底側。於是,當觸控筆40被插入容納槽32中以便移動到該充電位置時,觸控筆40的筆桿的書寫端係相鄰於電腦殼體30的頂側。 Figure 6 illustrates a variation of the second preferred embodiment. The non-contact battery charging device of FIG. 6 is different from the non-contact battery charging device of FIG. 5 in that the combination of the primary winding Wp and the insulated conduit 13 is disposed adjacent to the bottom side of the computer housing 30. Then, when the stylus pen 40 is inserted into the accommodating groove 32 to move to the charging position, the writing end of the stylus pen 40 is adjacent to the top side of the computer case 30.
當本發明被描述而連結被視為最實用且較佳的實施例,可以理解本發明並不侷限於所揭露的實施例,但意欲涵蓋包括最廣解釋的精神與範圍的多種不同安排,以涵蓋所有這樣的修飾與等效配置。 While the invention has been described as being considered as the most practical and preferred embodiment, it is understood that the invention is not limited to the disclosed embodiments, but is intended to cover Covers all such modifications and equivalent configurations.
10‧‧‧充電座 10‧‧‧ charging stand
12‧‧‧頻率信號產生器 12‧‧‧ Frequency signal generator
20‧‧‧充電器 20‧‧‧Charger
21‧‧‧整流濾波電路 21‧‧‧Rectifier filter circuit
22‧‧‧充電電路 22‧‧‧Charging circuit
42‧‧‧可充電電池 42‧‧‧Rechargeable battery
T‧‧‧組合式變壓器 T‧‧‧Combined transformer
Wp‧‧‧一次繞組 Wp‧‧‧First winding
Ws‧‧‧二次繞組 Ws‧‧‧ secondary winding
Claims (11)
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TW102107630A TWI474223B (en) | 2013-03-05 | 2013-03-05 | Modular transformer and the use of the combined transformer non-contact power Pool charging device |
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TW201435662A true TW201435662A (en) | 2014-09-16 |
TWI474223B TWI474223B (en) | 2015-02-21 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI632491B (en) * | 2017-06-22 | 2018-08-11 | 群光電子股份有限公司 | End-face-contact charging module and stylus |
CN109213339A (en) * | 2017-07-03 | 2019-01-15 | 群光电子股份有限公司 | End surface contact type charging module and its stylus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US8248024B2 (en) * | 2008-08-15 | 2012-08-21 | Microsoft Corporation | Advanced inductive charging pad for portable devices |
TW201037939A (en) * | 2009-04-03 | 2010-10-16 | Hon Hai Prec Ind Co Ltd | Charging system |
JP2012060797A (en) * | 2010-09-09 | 2012-03-22 | Panasonic Electric Works Co Ltd | Non-contact power feeding device |
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2013
- 2013-03-05 TW TW102107630A patent/TWI474223B/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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TWI632491B (en) * | 2017-06-22 | 2018-08-11 | 群光電子股份有限公司 | End-face-contact charging module and stylus |
CN109213339A (en) * | 2017-07-03 | 2019-01-15 | 群光电子股份有限公司 | End surface contact type charging module and its stylus |
CN109213339B (en) * | 2017-07-03 | 2022-01-25 | 群光电子股份有限公司 | End face contact type charging module and touch control pen thereof |
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