M367464 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種通用序列匯流排應用裝置，尤其涉及_ 種小型化的通用序列匯流排應用裝置。 【先前技術】 USB (Universal Serial Bus)傳輸介面由於具備有可提供 使用者在使用上的便捷性、擴充性與高速傳輸等優點，因此 被廣泛的應用於各種電腦週邊裝置、資訊家電產品與消費性 電子產品中，例如USB隨身碟，USB藍芽轉接器，是現今工 作場合與家庭生活中不可缺少的傳輸介面工具。 一種USB應用裝置之改良結構，如台灣專利第I2883 i5 號’其主要以一 PCB電路板作為一連接頭之pCB承載板，pCB 承載板之頂表面係可用以承載複數個第一連接端子，而pCB 承載板之底表面與連接頭之外殼層之間則自然形成有一板底 夾層，板底夾層内部可用以固設有至少一電子元件，藉此以 選擇是否縮減-USB電子應用模組之長度，或是增加USB電 子應用模組之工作效能。另外，板底夾層内可選擇設有至少 -可與該承載板連接之切構造、前端賴層及其組合式之 其中之-者。藉此，該切構造可穩固該底板爽層之結構， 防止該底板爽層受力變形之情形發生，該㈣保護層可保護 該底板爽層内部之電子元件，亦可強化底板失層之结構。 惟，上述USB制裝置的前端保護層與切構造設置於 M367464 底板夾層的邊緣，僅能支撐電路板的前端邊緣與侧邊邊緣， 底板夾層的中間部分沒有任何支撐結構，# u s B應用裳置插 设於上述電子產品時，對接連接器施加於電路板上的力量大 多集中在電路板中間部份，在長時間使用後，電路板中間部 份較容易因遭受外力而結構變形，進而造成獅應用裝置之 功能失常。 緣疋，本創作人有感上述缺失之可改善，乃特潛心研究， 終於提出一種設計合理且有效改善上述缺失之本創作。 【新型内容】 本創作的主要目的係提供一種小型化的通用序列匯流排 應用裝置，可有效支撐電路板，使電路板免於被外力破壞。 為實現上述目的，本創作通用序列匯流排應用裝置包括 絕緣本體與收容於絕緣本财的轉板，絕緣本體設有相對 的頂壁與底壁及相對的兩側壁，兩侧壁分別設有第—壁部與 第一壁。卩，頂壁、底壁與第一壁部圍成本體容置空間，底壁 與第-壁部圍成前端容置空間，兩側壁内壁面分別設有由本 體今置工間延伸至前端容置空間的凸肋，前端容置空間的中 間區域設有第一支持部。 電路板設有相對的頂面與底面及相對的第-端部與第二 端e f ^部收容於絕緣本的前端容置空間中，第二端部 收容於絕緣本體的本體容置空間内，絕緣本體的凸肋支持電 路板兩側it f支持部支持第__端部的巾間部分，電路板 M367464 的第-端部頂面設有暴露於絕緣本體外的接觸端子。 藉此，當通用序列匯流排應用裝置插接於對接連接器 時’絕緣本體的第-支持部可支揮電路板的第—端部中間， 進而可避免電路板因對接連接器施加的力量而受損。 【實施方式】 為詳細說明本創作之技術内s、構造特徵、所達成的目 的及功效，以下茲例舉實施例並配合圖式詳予說明。 請參閱第一圖與第二圖，第一圖係本創作通用序列匯流 排應用裝置1GG之立體組合圖，第二圖係第—圖之立體分解 圖。通用序列匯流排應用裝置⑽為—USB界面與無線傳輸 界面轉接裝置，無線傳輸介面可為藍芽界面、RFID界面、wiFi 界面、WiMax界面與ZigBee界面等。通用序列匯流排應用裝 置1〇〇設有外殼體2及收容於外殼體2内的電路板4,外殼體 2由絕緣本體6、蓋體8、與金屬外殼10所組成。 凊一併參閱第三圖與第四圖，絕緣本體6設有第一侧壁 12、第二側壁14、底壁16、頂壁18與固定壁20，第一側壁 12與第二侧壁14分別設有較高的第一壁部22與較矮的第二 壁部24，第一壁部22、底壁16與頂壁18圍成一本體容置空 間26 ’本體容置空間26後端設有一後端開口 28。 固定壁20由頂壁18内壁面朝向底壁16延伸，本實施例 中，固定壁20垂直延伸於頂壁18前端，固定壁20兩側邊分 別連接第一壁部22前端，第一壁部22、底壁16與固定壁2〇 5 M367464 之間圍成一前端開口 30。第二壁部24與底壁16圍成一前端 容置空間32。 第一側壁12之内側壁面與第二側壁14之内側壁面分別 設有凸肋34 (圖中僅顯示第二側壁14内側壁面的凸肋34)， 本實施例中，凸肋34由本體容置空間26延伸至前端容置空 間32。底壁16與頂壁18之外壁面分別設有一對卡接槽36， 頂壁18與固定壁20連接處的外壁面設有與卡接槽36相互對 齊的第一導引部38。 底壁16的外側壁面設有與卡接槽36相互對齊並設置於 卡接槽36前方的第二導引部40。本實施例中，第一導引部 38為一斜面，第二導引部40為導引槽，第二導引部40 —端 連通底壁16前緣，另一端朝向底壁卡接槽36筆直延伸，第 第二壁部24之内側壁面設有一凸塊42。 前端容置空間32的中間處設有第一支持部44,第一支持 部44為延伸於底壁16中間的内側壁面的矩形塊體，第一支 持部44頂面與凸肋34頂面位於同一水平面。第一側壁12之 第二壁部24前端與第二側壁14之第二壁部24前端分別向内 延伸有一防誤插塊體46，本實施例中，防誤插塊體46連接底 壁16前端，防誤插塊體46頂部設有第三導引部48，第三導 引部48為一斜面。 第一壁部22的後端頂部與後端底部分別設有固定孔50， 固定孔50開設於絕緣本體6的後端開口 28邊緣。本實施例 M367464 中，絕緣本體6係以塑膠射出成型製成。 請參閱第五圖，係蓋體8的立體視圖。蓋體8設有本體 52、固定柱54與第二支持部56，本體52呈板狀，本體52周 緣的形狀相對應於絕緣本體6後端開口 28的形狀。本實施例 中，絕緣本體6的後端開口 28形狀大致呈矩形，所以本體52 相對應地呈矩形板狀。 固定柱54的位置對應於絕緣本體6後端開口 28邊緣之 φ 固定孔50的位置，本實施例中，固定孔50設置於絕緣本體6 的第一壁部22的後端頂部與後端底部，所以固定柱54分別 設置於本體52兩側的頂部與底部。第二支持部56與固定柱 54皆設置於本體52同一面。本實施例中，第二支持部56呈 柱狀，蓋體8係以塑膠射出成型製成。 請參閱第六圖，電路板4設有相對的頂面58與底面60 及相對的第一端部62與第二端部64。電路板4位於頂面58 鲁的第一端部62處設有四個接觸端子66，其功能分別為VCC 電源線路、GND電源線路、D+資料線路與D-資料線路，以符 合USB之標準規範。電路板4之底面60設有至少一積體電路 68 ( Integrated Circuit, 1C )，本實施例中，積體電路68設置於 第一端部62與第二端部64之間。 請一併參閱第七圖，係積體電路68之方塊圖。積體電路 68包括至少一 USB界面70、至少一無線傳輸界面72與一轉 換單元74，轉換單元74連接於USB界面70與無線傳輸界面 7 M367464 72之間，用以將USB界面70之資料轉成無線傳輸界面72之 資料，並將無線傳輸界面72之資料轉成USB界面70之資料。 積體電路68之USB界面70電性連接四個接觸端子66。 電路板4的頂面58在位於第二端部64處設有天線76， 其電性連接積體電路68之無線傳輸界面72,用以接收無線傳 輸界面72發出的資料並轉成無線訊號，並可接收無線訊號並 轉成資料送至無線傳輸界面72。 電路板4頂面58的中間部分與第一端部62底面60分別 設有多個電子元件78。為了提高天線76效能，電路板4的第 二端部64底面60相對於天線76設置位置的區域未設置任何 電子元件78，以避免對天線76產生電氣干擾。電路板4第一 端部62兩側邊設有定位槽80。 請參閱第八圖，金屬外殼1〇設有相對的頂板82與底板 84及相對的兩側板86，兩側板86分別連接於頂板82兩側與 底板84兩側。金屬外殼10的頂板82與底板84分別設有一 對卡榫88 (圖中僅表示頂板84之卡榫88)。 當通用序列匯流排應用裝置100組裝時，先將電路板4 由第一端部62開始插入絕緣本體6的後端開口 28。當電路板 4完全收容於絕緣本體6内時，電路板4的第二端部64收容 於絕緣本體6的本體容置空間26内，電路板4的第一端部62 收容於絕緣本體6的前端容置空間32内。絕緣本體6的凸肋 34支撐電路板4兩側邊，第一支持部44支持電路板4的第一 M367464 端部62中間。M367464 V. New description: [New technical field] This creation relates to a universal serial bus application device, in particular to a miniaturized universal serial bus application device. [Prior Art] The USB (Universal Serial Bus) transmission interface is widely used in various computer peripheral devices, information home appliances, and consumption because it has the advantages of providing users with convenience, expandability, and high-speed transmission. Among the sex products, such as USB flash drive and USB Bluetooth adapter, it is an indispensable transmission interface tool in today's workplace and family life. An improved structure of a USB application device, such as Taiwan Patent No. I2883 i5, which mainly uses a PCB circuit board as a connection head pCB carrier board, and the top surface of the pCB carrier board can be used to carry a plurality of first connection terminals, and pCB A bottom interlayer is naturally formed between the bottom surface of the carrier and the outer layer of the connector, and the interior of the interlayer can be used to fix at least one electronic component, thereby selecting whether to reduce the length of the USB electronic application module. Or increase the working efficiency of the USB electronic application module. Alternatively, at least one of a cut structure, a front end layer, and a combination thereof that can be coupled to the carrier sheet can be selected in the bottom layer of the board. Thereby, the cutting structure can stabilize the structure of the cool layer of the bottom plate, prevent the situation of the cool layer of the bottom plate from being deformed by force, and the (4) protective layer can protect the electronic components inside the cool layer of the bottom plate, and can also strengthen the structure of the bottom layer lost layer. . However, the front end protective layer and the cut structure of the above USB device are disposed on the edge of the M367464 bottom plate interlayer, and can only support the front edge and the side edge of the circuit board, and the middle portion of the bottom plate interlayer does not have any supporting structure, #us B application When the electronic product is inserted into the electronic product, the force applied to the circuit board by the docking connector is mostly concentrated in the middle portion of the circuit board. After a long time of use, the middle portion of the circuit board is more likely to be deformed due to external force, thereby causing the lion. The function of the application device is abnormal. Because of this, the creator feels that the above-mentioned deficiency can be improved. He is devoted to research, and finally proposes a creation that is reasonable in design and effective in improving the above-mentioned defects. [New content] The main purpose of this creation is to provide a miniaturized universal serial bus application device that can effectively support the circuit board and protect the circuit board from external forces. In order to achieve the above object, the universal serial bus application device of the present invention comprises an insulating body and a rotating plate housed in the insulating body. The insulating body is provided with opposite top and bottom walls and opposite side walls, and the two side walls respectively have a first - wall and first wall.顶, the top wall, the bottom wall and the first wall portion surround the cost body accommodating space, and the bottom wall and the first wall portion enclose a front end accommodating space, and the inner wall surfaces of the two side walls respectively extend from the body to the front end The rib of the space is provided with a first support portion at an intermediate portion of the front end accommodating space. The circuit board is provided with a corresponding top surface and a bottom surface, and the opposite first end portion and the second end portion ef ^ are received in the front end receiving space of the insulating body, and the second end portion is received in the body receiving space of the insulating body. The rib of the insulative housing supports the inter-sleeve portion of the __ end portion of the y_end portion on both sides of the circuit board, and the top end portion of the circuit board M367464 is provided with a contact terminal exposed to the outside of the insulating body. Thereby, when the universal serial busbar application device is plugged into the docking connector, the first support portion of the insulating body can support the middle end portion of the circuit board, thereby avoiding the force exerted by the circuit board by the docking connector. Damaged. [Embodiment] In order to explain in detail the technical s, structural features, objectives and effects achieved by the present invention, the embodiments are described in detail below with reference to the drawings. Please refer to the first figure and the second figure. The first figure is a three-dimensional combination diagram of the universal sequence bus application device 1GG of the present creation, and the second figure is a three-dimensional exploded view of the first figure. The universal serial bus application device (10) is a USB interface and a wireless transmission interface switching device, and the wireless transmission interface can be a Bluetooth interface, an RFID interface, a wiFi interface, a WiMax interface, and a ZigBee interface. The universal serial busbar application device 1 is provided with an outer casing 2 and a circuit board 4 housed in the outer casing 2. The outer casing 2 is composed of an insulative housing 6, a cover 8, and a metal casing 10. Referring to the third and fourth figures, the insulative housing 6 is provided with a first side wall 12, a second side wall 14, a bottom wall 16, a top wall 18 and a fixed wall 20, and the first side wall 12 and the second side wall 14 A first wall portion 22 and a second wall portion 24 are formed. The first wall portion 22, the bottom wall 16 and the top wall 18 define a body receiving space 26. A rear end opening 28 is provided. The fixed wall 20 extends from the inner wall surface of the top wall 18 toward the bottom wall 16. In this embodiment, the fixed wall 20 extends perpendicularly to the front end of the top wall 18. The two sides of the fixed wall 20 are respectively connected to the front end of the first wall portion 22, and the first wall portion 22. A front end opening 30 is defined between the bottom wall 16 and the fixed wall 2〇5 M367464. The second wall portion 24 and the bottom wall 16 define a front end receiving space 32. The inner side wall surface of the first side wall 12 and the inner side wall surface of the second side wall 14 are respectively provided with ribs 34 (only the ribs 34 of the inner side wall surface of the second side wall 14 are shown). In this embodiment, the rib 34 is received by the body. The space 26 extends to the front end accommodation space 32. The bottom wall 16 and the outer wall surface of the top wall 18 are respectively provided with a pair of engaging grooves 36. The outer wall surface of the top wall 18 and the fixed wall 20 is provided with a first guiding portion 38 which is aligned with the engaging groove 36. The outer wall surface of the bottom wall 16 is provided with a second guiding portion 40 which is aligned with the engaging groove 36 and disposed in front of the engaging groove 36. In this embodiment, the first guiding portion 38 is a sloped surface, the second guiding portion 40 is a guiding groove, the second guiding portion 40 is connected to the front edge of the bottom wall 16 and the other end is directed toward the bottom wall engaging groove 36. Straight extending, the inner wall surface of the second wall portion 24 is provided with a bump 42. A first support portion 44 is defined in the middle of the front end receiving space 32. The first support portion 44 is a rectangular block extending from the inner side wall surface in the middle of the bottom wall 16. The top surface of the first support portion 44 is located on the top surface of the rib 34. The same horizontal plane. An anti-missing insert body 46 extends inwardly from the front end of the second wall portion 24 of the first side wall 12 and the front end of the second wall portion 24 of the second side wall 14. In this embodiment, the anti-missing block body 46 is connected to the bottom wall 16 . The front end of the anti-missing block body 46 is provided with a third guiding portion 48, and the third guiding portion 48 is a slope. The rear end portion and the bottom end portion of the first wall portion 22 are respectively provided with fixing holes 50 which are opened at the edge of the rear end opening 28 of the insulative housing 6. In the embodiment M367464, the insulating body 6 is formed by injection molding of plastic. Please refer to the fifth figure for a perspective view of the cover 8. The cover body 8 is provided with a body 52, a fixing post 54 and a second supporting portion 56. The body 52 has a plate shape, and the shape of the periphery of the body 52 corresponds to the shape of the rear end opening 28 of the insulating body 6. In this embodiment, the rear end opening 28 of the insulative housing 6 has a substantially rectangular shape, so that the body 52 has a rectangular plate shape correspondingly. The position of the fixing post 54 corresponds to the position of the fixing hole 50 of the edge of the rear end opening 28 of the insulative housing 6. In the embodiment, the fixing hole 50 is disposed at the rear end and the rear end of the first wall portion 22 of the insulative housing 6. Therefore, the fixing posts 54 are respectively disposed at the top and the bottom of both sides of the body 52. The second support portion 56 and the fixing post 54 are disposed on the same surface of the body 52. In this embodiment, the second support portion 56 has a columnar shape, and the cover body 8 is formed by plastic injection molding. Referring to the sixth drawing, the circuit board 4 is provided with opposite top surfaces 58 and bottom surfaces 60 and opposite first end portions 62 and second end portions 64. The circuit board 4 is located at the first end portion 62 of the top surface 58 Lu. Four contact terminals 66 are provided, and the functions thereof are VCC power line, GND power line, D+ data line and D-data line, in order to comply with the USB standard specification. . The bottom surface 60 of the circuit board 4 is provided with at least one integrated circuit 68 (Integrated Circuit, 1C). In this embodiment, the integrated circuit 68 is disposed between the first end portion 62 and the second end portion 64. Please refer to the seventh figure together with the block diagram of the integrated circuit 68. The integrated circuit 68 includes at least one USB interface 70, at least one wireless transmission interface 72 and a conversion unit 74. The conversion unit 74 is connected between the USB interface 70 and the wireless transmission interface 7 M367464 72 for transferring the data of the USB interface 70. The data of the wireless transmission interface 72 is converted into the data of the USB interface 70 by the data of the wireless transmission interface 72. The USB interface 70 of the integrated circuit 68 is electrically connected to the four contact terminals 66. The top surface 58 of the circuit board 4 is provided with an antenna 76 at the second end portion 64, and is electrically connected to the wireless transmission interface 72 of the integrated circuit 68 for receiving the data sent by the wireless transmission interface 72 and converting it into a wireless signal. The wireless signal can be received and converted into a data transmission interface 72. A central portion of the top surface 58 of the circuit board 4 and a bottom surface 60 of the first end portion 62 are provided with a plurality of electronic components 78, respectively. In order to improve the performance of the antenna 76, the area of the bottom surface 60 of the second end portion 64 of the circuit board 4 relative to the location where the antenna 76 is disposed is not provided with any electronic components 78 to avoid electrical interference with the antenna 76. A positioning groove 80 is formed on both sides of the first end portion 62 of the circuit board 4. Referring to the eighth figure, the metal casing 1 is provided with an opposite top plate 82 and a bottom plate 84 and opposite side plates 86. The two side plates 86 are respectively connected to both sides of the top plate 82 and the two sides of the bottom plate 84. The top plate 82 and the bottom plate 84 of the metal casing 10 are respectively provided with a pair of latches 88 (only the latches 88 of the top plate 84 are shown). When the universal serial busbar application device 100 is assembled, the circuit board 4 is first inserted into the rear end opening 28 of the insulative housing 6 from the first end portion 62. When the circuit board 4 is completely received in the insulative housing 6, the second end portion 64 of the circuit board 4 is received in the body receiving space 26 of the insulative housing 6. The first end portion 62 of the circuit board 4 is received in the insulative housing 6. The front end accommodates the space 32. The ribs 34 of the insulative housing 6 support the sides of the circuit board 4, and the first support portion 44 supports the middle of the first M367464 end 62 of the circuit board 4.
本實施例中，第一支持部44的位置可配合電路板4的第 一端部62底面60的電子元件78的位置，使電路板4在組裝 時可順利插入絕緣本體6中，且電路板4完全插入絕緣本體6 時，第一支持部44恰位於電路板4的第一端部62底面60的 電子元件78前面並抵接電子元件78,使電路板4無法再向前 移動。藉此，第一支持部44可對電路板4定位，且可保護電 子元件78。 絕緣本體6的凸塊42卡合於電路板4的定位槽80内， 以對電路板4定位，避免電路板4相對於絕緣本體6產生位 移。接觸端子66曝露於絕緣本體6外部。 電路板4中間部分與積體電路68夾在絕緣本體6的前端 開口 30中，積體電路68可支撐電路板4，絕緣本體6的固定 壁20抵接電路板4的頂面58中間部分，藉此抵頂固定住電 路板4。 之後，蓋體8的固定柱54卡入絕緣本體6之固定孔50， 使蓋體8封住絕緣本體6之後端開口 28。蓋體8的第二支持 部56支撐電路板4的第二端部64。蓋體8的第二支持部56 頂面及絕緣本體6的凸肋34頂面與第一支持部44頂面位於 同一平面，以對電路板4定位，使電路板4水平置於絕緣本 體6内部。 嗣後，電路板4的第一端部62及絕緣本體6的第二壁部 9 M367464 24與底壁16的前端部分插入金屬外殼10内，金屬外殼1〇之 卡榫88經由絕緣本體6的第一導引部38與第二導引部4〇導 引可流暢地卡合於卡接槽36内，使絕緣本體6與金屬外殼1〇 相互固定結合。 最後，金屬外殼10包覆電路板4的第—端部62及絕緣 本體6的第二壁部24與底壁16前端部分，並一起構成標準 USB A-Type連接器，使通用序列匯流排應用裝置ι〇〇可符合 USB標準規範，且金屬外殼1〇亦可提升通用序列匯流排應用 裝置100的結構強度。 當通用序列匯流排應用裝置1〇〇插接於對接連接器（圖 中未示）時，絕緣本體6的前端兩側的防誤插塊體46可阻擋 對接連接器插入絕緣本體6的前端容置空間3 2内，且防誤插 塊體46頂部的第三導引部48可導引對接連接器可流暢地插 入電路板4頂面58與金屬外殼10之間的夾層中，使對接連 接器的對接端子抵接電路板4頂面58的接觸端子66。 當對接連接器抵接電路板4㈣—端部62之· 58時， 對接連接H的對接端子會施力π力量在電路板4的第—端部62 上，且此力量大多施加在電路板4的第—端部Μ中間，而絕 緣本體6的前端容置空間32内的第-支持部44可以支樓電 路板4的第一端部62中間， U避免對接連接器的施加力量破 壞電路板4的結構。 由以上結構說明後可知’絕緣本體6的第-支持部44可 10 M3 67464 支揮電路板4的第一端部62中間，避免電路板4因外力而受 損°且第一支持部44設置於電路板4的第一端部62底面60 的電子元件78前面並抵接電子元件78，以對電路板4定位並 保護電子元件78。另外’防誤插塊體46可避免通用序列匯流 排應用裝置1〇〇誤插，並導引對接連接器流暢地插入通用序 列匯流排應用裝置1〇〇中。 【圖式簡單說明】 第一圖係本創作通用序列匯流排應用裝置之立體組合 圖。 第二圖係本創作通用序列匯流排應用裝置之立體分解 圖。 第三圖係本創作通用序列匯流排應用裝置之絕緣本體的 局部剖視圖。 第四圖係本創作通用序列匯流排應用裝置之絕緣本體的 後视圖。 第五圖係本創作通用序列匯流排應用裝置之蓋體的立體 圖。 第六圖係本創作通用序列匯流排應用裝置之電路板之示 意_ 〇 第七圖係本創作通用序列匯流排應用裝置之積體電路之 方塊圖。 第八圖係本創作通用序列匯流排應用裝置之金屬外殼之 11 M367464 立體圖。 第九圖係係第一 【主要元件符號說明】 圖中延IX- -IX之剖面圖。 通用序列匯流排應用裝置 100 外殼體 2 電路板 4 絕緣本體 6 蓋體 8 金屬外殼 10 第一側壁 12 第二側壁 14 底壁 16 頂壁 18 固定壁 20 第一壁部 22 第二壁部 24 本體容置空間 26 後端開口 28 前端開口 30 前端容置空間 32 凸肋 34 卡接槽 36 第一導引部 38 第二導引部 40 凸塊 42 第一支持部 44 防誤插塊體 46 防誤插塊體 46 第三導引部 48 固定孔 50 本體 52 固定柱 54 第二支持部 56 頂面 58 底面 60 第一端部 62 第二端部 64 接觸端子 66 積體電路 68 USB界面 70 12 M367464 無線傳輸界面 72 天線 76 定位槽 80 底板 84 卡榫 88 轉換單元 74 電子元件 78 頂板 82 側板 86In this embodiment, the position of the first supporting portion 44 can match the position of the electronic component 78 of the bottom surface 60 of the first end portion 62 of the circuit board 4, so that the circuit board 4 can be smoothly inserted into the insulating body 6 during assembly, and the circuit board 4 When fully inserted into the insulative housing 6, the first support portion 44 is located just in front of the electronic component 78 of the bottom surface 60 of the first end portion 62 of the circuit board 4 and abuts the electronic component 78, so that the circuit board 4 can no longer move forward. Thereby, the first support portion 44 can position the circuit board 4 and can protect the electronic component 78. The bumps 42 of the insulative housing 6 are engaged in the positioning slots 80 of the circuit board 4 to position the circuit board 4 to prevent the circuit board 4 from being displaced relative to the insulative housing 6. The contact terminal 66 is exposed to the outside of the insulative housing 6. The intermediate portion of the circuit board 4 and the integrated circuit 68 are sandwiched in the front end opening 30 of the insulative housing 6, and the integrated circuit 68 can support the circuit board 4. The fixed wall 20 of the insulative housing 6 abuts the middle portion of the top surface 58 of the circuit board 4. Thereby, the circuit board 4 is fixed by the top. Thereafter, the fixing post 54 of the cover 8 is snapped into the fixing hole 50 of the insulative housing 6, so that the cover 8 seals the rear end opening 28 of the insulative housing 6. The second support portion 56 of the cover 8 supports the second end portion 64 of the circuit board 4. The top surface of the second support portion 56 of the cover 8 and the top surface of the rib 34 of the insulative housing 6 are in the same plane as the top surface of the first support portion 44 to position the circuit board 4 so that the circuit board 4 is horizontally placed on the insulative body 6 internal. After that, the first end portion 62 of the circuit board 4 and the second wall portion 9 M367464 24 of the insulative housing 6 and the front end portion of the bottom wall 16 are inserted into the metal casing 10, and the card casing 88 of the metal casing 1 is passed through the insulative body 6. A guiding portion 38 and the second guiding portion 4 are guided to smoothly engage in the engaging groove 36, so that the insulating body 6 and the metal casing 1 are fixedly coupled to each other. Finally, the metal casing 10 covers the first end portion 62 of the circuit board 4 and the second wall portion 24 of the insulative housing 6 and the front end portion of the bottom wall 16 and together form a standard USB A-Type connector for universal serial bus application. The device 〇〇 can conform to the USB standard specification, and the metal casing 1 can also enhance the structural strength of the universal serial bus application device 100. When the universal serial busbar application device 1 is plugged into a docking connector (not shown), the anti-missing plug body 46 on both sides of the front end of the insulative housing 6 can block the front end of the mating connector from being inserted into the insulative housing 6. The third guiding portion 48 at the top of the anti-missing block 46 can guide the docking connector to be smoothly inserted into the interlayer between the top surface 58 of the circuit board 4 and the metal casing 10 to make the docking connection The mating terminal of the device abuts the contact terminal 66 of the top surface 58 of the circuit board 4. When the docking connector abuts the circuit board 4 (four) - the end 62 of the terminal 62, the butt joint of the docking connection H exerts a force π on the first end portion 62 of the circuit board 4, and this force is mostly applied to the circuit board 4 In the middle of the first end portion, the first support portion 44 in the front end receiving space 32 of the insulative housing 6 can be in the middle of the first end portion 62 of the branch circuit board 4, U avoids the force exerted by the mating connector to damage the circuit board The structure of 4. It can be seen from the above description that the first support portion 44 of the insulative housing 6 can be 10 M3 67464 to support the middle of the first end portion 62 of the circuit board 4, thereby preventing the circuit board 4 from being damaged by external force and the first support portion 44 is disposed. In front of the electronic component 78 of the bottom surface 60 of the first end portion 62 of the circuit board 4 and abutting the electronic component 78 to position and protect the electronic component 78 from the circuit board 4. In addition, the anti-missing insert block 46 prevents the universal serial bus application device 1 from being inserted incorrectly, and guides the docking connector to be smoothly inserted into the universal serial bus application device. [Simple description of the diagram] The first figure is a three-dimensional combination diagram of the universal serial bus application device of the present creation. The second figure is a perspective exploded view of the universal sequence bus application device of the present creation. The third figure is a partial cross-sectional view of the insulative body of the universal serial bus application device of the present invention. The fourth figure is a rear view of the insulative body of the universal serial bus application device of the present invention. The fifth figure is a perspective view of the cover of the universal serial bus application device of the present creation. The sixth figure is a schematic diagram of the circuit board of the universal serial bus application device of the present invention. _ The seventh figure is a block diagram of the integrated circuit of the universal serial bus application device of the present invention. The eighth figure is a perspective view of the 11 M367464 metal casing of the universal serial bus application device. The ninth figure is the first system. [Main component symbol description] The cross-section of the extension IX--IX in the figure. Universal serial busbar application device 100 Outer casing 2 Circuit board 4 Insulating body 6 Cover body 8 Metal casing 10 First side wall 12 Second side wall 14 Bottom wall 16 Top wall 18 Fixed wall 20 First wall portion 22 Second wall portion 24 Body Accommodating space 26 rear end opening 28 front end opening 30 front accommodating space 32 rib 34 snap groove 36 first guiding portion 38 second guiding portion 40 bump 42 first support portion 44 anti-missing block body 46 Mis-insertion block 46 Third guiding portion 48 Fixing hole 50 Body 52 Fixing post 54 Second support portion 56 Top surface 58 Bottom surface 60 First end portion 62 Second end portion 64 Contact terminal 66 Integrated circuit 68 USB interface 70 12 M367464 Wireless transmission interface 72 Antenna 76 Positioning slot 80 Base plate 84 Card 88 Conversion unit 74 Electronic components 78 Top plate 82 Side plate 86
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