M393836 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種電連接器’特別是指一種堆疊式 插座連接器。 【先前技術】 由於電子訊號傳輸的不同需求，發展出多種的傳輸協 定，並因應不同的傳輸協定而產生不同的電連接器規柊。 目别電子資訊產品趨向多功能整合，所以常見在同一電子 裝置上需要設置多種傳輸規格的插座連接器，或多個相同 傳輸規格的插座連接器。為了節省設置電連接器的空間， 而發展出堆疊式插座連接器。例如台灣新型專利公告第 M324323號公開一種具有雙插接孔的HDMI電連接器，適M393836 V. New description: [New technical field] The present invention relates to an electrical connector', in particular to a stacked socket connector. [Prior Art] Due to the different demands of electronic signal transmission, a variety of transmission protocols have been developed, and different electrical connector specifications have been generated in response to different transmission protocols. In view of the fact that electronic information products tend to be multi-functionally integrated, it is common to have socket connectors of various transmission specifications or socket connectors of the same transmission specification on the same electronic device. In order to save space in setting up the electrical connector, a stacked socket connector was developed. For example, Taiwan New Patent Publication No. M324323 discloses an HDMI electrical connector having a double plug hole.
用於兩組HDM!插頭之共插使用。又例如台灣新型專利= 告第M331824號公開一種a型刪和USB/eSATA 堆疊的複合式插座電連接器，可同時共插兩組usb插頭， 或是共插一組USB插頭及一組eSATA插頭。 參閱圖卜第M324323號專利公開之電連接器91包含 -金屬殼座911、-絕緣座912、兩組導接端子913、914、 及一前遮蓋915等構件。其前遮蓋915為-c形金屬蓋體 ，係供插人金屬殼座911的開口中央，並嵌人結合於絕緣座 912的兩個阻隔塊9121、9122之間，前遮蓋犯上片兩側 各具有一凹形翼片916，以供嵌入金屬殼座9ιι的側壁插槽 則，用以構成外接插頭插人時的防呆設計同樣地㈣ 殼座川底緣兩側端角的凹形部9112是相同的防呆設計。 3 M393836 參閱圖2 ’第M331824號專利公開的電連接器92包含 —絕緣殼體921、一金屬殼體922、一金屬夾持件9Ζ3，多 數固设於絕緣殼體921的第一 a型USB端子924、ESΑΤΑ 端子925及第二Α型USB端子926。金屬夾持件923包括 一個可套住橫隔板9211的U形屏蔽部923〗，及一對分別由 屏蔽部9211兩相對側往上延伸的直立翼部9232。 在第M324323號專利中，其前遮蓋915具有一對凹形 翼片916以做為防呆設計，但是凹形翼片916末端是嵌入 金屬殼座911的側壁插槽9111中，翼片916與金屬殼座 911仍存在有接縫，有成為電磁屏蔽漏洞的風險。而第籲 M331824號專利雖然具有直立翼部9232以增加插槽側壁的 屏蔽效果，但是不具有防呆的功能。 【新型内容】 因此本新型之目的，即在提供一種可以提供較佳屏 蔽效果且具有防呆功能的堆疊式插座連接器。 依據本新型之較佳實施例，本新型堆疊式插座連接器 ，包含一絕緣殼體、多數根第一端子、多數根第二端子、 一金屬外殼及一金屬夾持件。絕緣殼體具有一橫隔板及由·_ 4戸、隔板所間隔之一第一槽部及一第二槽部。第一端子設於 絕緣殼體且各具有一位於第一槽部中之第一接觸部。第二 端子設於絕緣殼體且各具有一位於第二槽部中之第二接觸 部。金屬外殼套設於絕緣殼體外，具有位於相對側之一第 一端壁及一第二端壁，以及分別連接於第_端壁與第二端 壁兩側之一對側壁。金屬夾持件具有套設於橫隔板之一本 4 M393836 體^連接於本體兩側之二側翼，本體具有—位於橫隔板前 之前板’及分別由前板沿橫隔板兩侧延伸而分別位於第 一槽部内之一第一屏蔽板及位於第二槽部内之一第二屏蔽 板，二側翼分別連接於第一屏蔽板的兩相 槽部内。二側翼分別具有-直立部且其中至少—側=且 有斜向地連接於直立部與第—屏蔽板之間的_導引防呆部 。一側翼、第一屏蔽板及第一端冑共同界定一第一插槽。 本新型之功效，藉由導引防呆部將第一插槽界定出具 有不對稱形狀的插口，從而達到防呆作用，以避免插頭誤 插。而且二側翼位於第一插槽兩側，可以提昇屏蔽效果。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之二個較佳實施例的詳細說明中，將可 清楚的呈現。 在本新型被詳細描述之前，要注意的是，在以下的說 明内容中，類似的元件是以相同的編號來表示。 參閱圖3、圖4與圖5，本新型堆疊式插座連接器之第 一較佳實施例包含：一絕緣殼體1、一金屬外殼2、一金屬 夾持件3、多數根第-端子4及多數根第二端子5。 絕緣殼體1具有一橫隔板11及由橫隔板11所間隔之一 第-槽部12及-第二槽部13。金屬外殼2套設於絕緣殼體 1外，具有位於相對側之—第一端壁21及一第二端壁22， 以及分別連接於第一端壁21與第二端壁22兩側之一對側 壁23，及一後蓋27 ^金屬夾持件3具有套設於橫隔板η之 5 M393836 一 u形本體31及連接於本體31兩側之二側翼32 ' ，本 體31具有一位於橫隔板u前之前板311，及分別由前板 311沿橫隔板11兩側延伸，而分別位於第一槽部12内之一 第一屏蔽板312及位於第二槽部13内之一第二屏蔽板313 ，二側翼32、33分別連接於第一屏蔽板312的兩相對侧並 位於第一槽部12内。二側翼32、33分別具有一直立部321 、331且其中一側翼32還具有斜向地連接於直立部與 第一屏蔽板312之間的一導引防呆部322。二側翼32、33 、第一屏蔽板312及第一端壁21共同界定一第一插槽1〇1 。絕緣殼體1之第二槽部13與第二端壁22及第二屏蔽板 313相配合，共同形成一第二插槽1〇2。第二插槽1〇2左右 兩侧為界定第二槽部13的絕緣殼體丨之側壁14所界定。 藉由斜向延伸的導引防呆部322，使第一插槽ι〇ι的插口為 不對稱形狀，從而達到防呆的作用，而且利用二側翼32、 33位於第一插槽101兩側，且其外側還有金屬外殼2的側 壁23，能加強電磁屏蔽的效果。 此外，絕緣殼體1還具有凸伸於第一插槽丨〇丨中之一 第一舌板15及凸伸於第二插槽1〇2中之一第二舌板16。金 屬夾持件3的二側翼32、33分別還具有設於直立部321、 331的一夾持彈片34，及由直立部321、331延伸並與第一 端壁23接觸之一接地部37(參閱圖6與圖7)，且本體31還 具有設於第-屏蔽板312之二夾持彈μ 35，及設於第二屏 蔽板313之二夾持彈片36。而在金屬外殼2的第一端壁21 及第二端壁22分別設有二夾持彈片24、25，且二側壁23 6 认有住第二插槽1G2内延伸的—接地部26。夹持彈片34、 3一5、24用以夾持固定插入第一插槽1〇1的插頭連接器(圖未 )’、中位於側翼32、33的夾持彈片34可加強夾持對接 插頭連接H的固持力，且能與插頭連接器的金屬殼體兩側 :成：連接’再通過側翼32、33上的接地部37與金屬外 成2电連接’而使插頭連接器產生的靜電可經由金屬外殼2 導接至電路板8之接地迴路。另外炎持彈片％、25用以夹 持固定插入第二插槽102的插頭連接器（圖未示），且金屬殼 體2側壁23上的接地部26能與插頭連接器的金屬殼體兩 側形成電連接’而使插頭連接器產生的靜電可經由金屬外 殼2導接至電路板8之接地迴路。 第—端子4設於絕緣殼體丨且各具有設於第一舌板15 之一第-接觸部41、由第-接觸部41往後延伸之—第一固 定部d第42往後延伸之—第—延伸部43, 及由第—延伸部43彎折往下延伸之第-導接部44。第-接 觸部設於第—舌板15，亦即位於第—插槽⑻（第一槽部 12)中，第-固定部42與絕緣殼體】干涉較。第二端子5 設於絕緣殼體i且各具有設於第二舌板16之—第二接觸部 51、由第二接觸部51往後延伸之一第二固定部52、由第二 固定部52彎折往上延伸再彎折往後延伸之—第二延伸部^ ’及由第二延伸部53彎折往下延伸之-第二導接部54。第 二接觸部51設於第二舌板16，亦即位於第二插槽1〇2(第二 槽。P 13)中’第二固^部52與絕緣殼體i干涉固定。此外 參閱圖4、圖6與圖8,插座連接器還包含安裝於絕緣殼體 1之一上端子定位件0及一下端子定位件7。上端子定位件 6具有對應收容第一端子4中位於上排之第一延伸部43後 端部分的多數個溝槽61，藉以將第一端子4的第一延伸部 43疋位，並將各第一延伸部43相互隔離，以避免短路及串 9干擾。下端子定位件7具有對應供第一導接部44及第二 導接4 54穿设的多數個穿孔7丨，藉以將第一導接部及 第二導接部54定位，以方便安裝於電路板8，使第一導接 部44及第二導接部54與電路板8形成電連接。 在本實施例中，第一端子4為用於傳輸符合視訊介面 (Display P(m)訊號的端子組。第二端子$包括—組用於傳 輸符σ USB訊號的端子組（圖4所示第二端子$中的下排端 子L且）及—組用於傳輸符合eSA丁A訊號的端子組（圖4所 不第二端子5中的上排端子組）。 參閱圖9肖® 10，本新型堆疊式插座連接器之第二較 佳實施例與第_較佳實施例大致相同，惟，第二較佳實施 例，金屬夾持件3,的二側冑32，分別具有斜向地連接於直 P 321與第一屏蔽板312,之間的一導引防呆部。藉 由一側翼32,、第一屏蔽板312，與金屬外殼2，之第一端 壁2!’共同界定之第一插槽ι〇ι，的插口為上、下不對稱形狀 子亦可達到防呆的作用。此外，第二較佳實施例的第一端 為用於傳輸符合高解析度多媒體介面（HDMI)訊號的端 于組。 、101:=述藉由導引防呆部322、322,將第一插槽101 出具有不對稱形狀的插口，從而達到防呆作用， M393836 以避免插頭誤插。而且二側翼32、33、32,位於第—插槽 101、101’兩側’可以提昇屏蔽效果，故確實能達成本新型 之目的。 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一立體圖，說明一現有的電連接器； 圖2是一立體分解圖，說明另一現有的電連接器； 圖3是一立體圖，說明本新型堆疊式插座連接器之第 一較佳實施例； 圖4是一圖3的立體分解圖； 圖5是一圖3的前視圖； 圖6是一圖3的俯視圖； 圖7是一沿圖6中VII-VII直線所取的剖視圖； 圖8是一沿圖6中VIII-VIII直線所取的剖視圖； 圖9是一立體部分分解圖，說明本新型堆疊式插座連 接器 < 第二較佳實施例；及 圖10是一圖9組合後的前視圖。 9 M393836 【主要元件符號說明】 1 ....... •…絕緣殼體 321… •…直立部 101 ··· —弟 插槽 322… •…導引防呆部 102 ... —苐一插槽 33"... •…側翼 11 •…· &隔板 331 ··· •…直立部 12••… •…第一槽部 34·...· •…夾持彈片 13 •…第二槽部 35…… …·夾持彈片 14••… •…側壁 36…… •…夾持彈片 15··.·· —弟 舌板 37…… 接地 16…… •…第二舌板 4 ....... •…第一端子 2…… •…金屬外殼 41…… •…第一接觸部 21…… •…第一端壁 42…… •…第一固定部 22…… •…第二端壁 43…… —第 延伸部 23 ·..·側壁 44…… …·第一導接部 24…… •…夾持彈片 5 ....... •…第二端子 25…… •…夾持彈片 51…… …·第二接觸部 26…… •…接地部 52…… …·第二固定部 27…… •…後蓋 53…… …第二延伸部 3 ....... •…金屬夾持件 54…… …第二導接部 31…… •…本體 6 ....... …·上端子定位件 311… •…前板 61…… …·溝槽 312… •…第一屏蔽板 7 ....... …下端子定位件 313… 弟-—屏蔽板 71…… …·穿孔 32…… •…側翼 8 ....... …·電路板 10 M393836 101，… …第一插槽 312,… …弟 屏敝板 V…… …金屬外设 32,..… …側翼 21，.··. …第一端壁 321,… …直立部 3,…… …金屬夾持件 322,… …導引防呆部Used for co-insertion of two sets of HDM! plugs. For example, Taiwan's new patent = No. M331824 discloses a type A and USB/eSATA stacked composite socket electrical connector, which can simultaneously insert two sets of USB plugs, or a set of USB plugs and a set of eSATA plugs. . The electrical connector 91 disclosed in the U.S. Patent No. 3,324,323 includes a metal housing 911, an insulating seat 912, two sets of lead terminals 913, 914, and a front cover 915. The front cover 915 is a -c-shaped metal cover, which is inserted into the center of the opening of the metal shell 911, and is embedded between the two blocking blocks 9121 and 9122 of the insulating seat 912. The utility model has a concave fin 916 for inserting into the side wall slot of the metal shell 9 ιι, so as to form a foolproof design when the external plug is inserted. (4) The concave portion 9112 of the end corners of the bottom edge of the shell seat is The same foolproof design. 3 M393836 Referring to FIG. 2, the electrical connector 92 disclosed in the No. M331824 includes an insulating housing 921, a metal housing 922, a metal clamping member 9Ζ3, and a first type a USB fixed to the insulating housing 921. Terminal 924, ES 端子 terminal 925 and second USB type USB terminal 926. The metal holding member 923 includes a U-shaped shield portion 923 which can cover the partition plate 9211, and a pair of upright wings portion 9232 which extend upward from opposite sides of the shield portion 9211, respectively. In the patent No. M324323, the front cover 915 has a pair of concave flaps 916 for the foolproof design, but the end of the concave flap 916 is embedded in the side wall slot 9111 of the metal housing 911, and the flap 916 is There is still a seam in the metal shell 911, which has the risk of becoming an electromagnetic shielding hole. While the patent No. M331824 has an upright wing portion 9232 to increase the shielding effect of the side wall of the slot, it does not have a foolproof function. [New content] Therefore, the object of the present invention is to provide a stacked socket connector which can provide a better shielding effect and has a foolproof function. According to a preferred embodiment of the present invention, the stacked socket connector of the present invention comprises an insulative housing, a plurality of first terminals, a plurality of second terminals, a metal housing and a metal holder. The insulating housing has a transverse partition and a first groove portion and a second groove portion separated by a partition. The first terminals are disposed in the insulative housing and each have a first contact portion located in the first groove portion. The second terminals are disposed in the insulative housing and each have a second contact portion in the second slot portion. The metal casing is sleeved outside the insulating casing, and has a first end wall and a second end wall on opposite sides, and a pair of side walls respectively connected to the first end wall and the second end wall. The metal clamping member has two side flaps which are sleeved on one of the transverse partitions and are connected to the two sides of the main body. The main body has a front panel which is located in front of the transverse partition plate and extends from the front panel along the two sides of the horizontal partition plate respectively. And a first shielding plate located in the first groove portion and a second shielding plate located in the second groove portion, wherein the two side wings are respectively connected to the two-phase groove portions of the first shielding plate. The two side flaps each have an upright portion and at least one of the sides = and are obliquely connected to the y guide preventing portion between the upright portion and the first shielding plate. The one side wing, the first shielding plate and the first end 胄 together define a first slot. The function of the present invention achieves a foolproof effect by guiding the foolproof portion to define a socket having an asymmetrical shape to prevent the plug from being mistakenly inserted. Moreover, the two side wings are located on both sides of the first slot, which can enhance the shielding effect. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals. Referring to FIG. 3, FIG. 4 and FIG. 5, a first preferred embodiment of the stacked socket connector of the present invention comprises: an insulating housing 1, a metal housing 2, a metal clamping member 3, and a plurality of base terminals 4. And a plurality of second terminals 5. The insulating case 1 has a diaphragm 11 and a first groove portion 12 and a second groove portion 13 which are separated by the diaphragm 11. The metal casing 2 is sleeved on the outer side of the insulating casing 1 and has a first end wall 21 and a second end wall 22 on opposite sides, and is respectively connected to one of the two sides of the first end wall 21 and the second end wall 22. The pair of side walls 23, and a back cover 27, the metal holding member 3 has a U-shaped body 31 that is sleeved on the transverse partition η, and a two-sided body 32' that is connected to both sides of the body 31. The body 31 has a horizontal The front plate 311 of the partition plate u and the front plate 311 extend along both sides of the horizontal partition plate 11 respectively, and one of the first shielding plate 312 and the second groove portion 13 respectively located in the first groove portion 12 The two shielding plates 313 and the two side wings 32 and 33 are respectively connected to opposite sides of the first shielding plate 312 and located in the first groove portion 12. The two side flaps 32, 33 each have an upright portion 321 , 331 and wherein the one side flap 32 further has a guiding anti-slipping portion 322 obliquely connected between the upright portion and the first shield plate 312. The two side flaps 32, 33, the first shielding plate 312 and the first end wall 21 together define a first slot 〇1. The second groove portion 13 of the insulating housing 1 cooperates with the second end wall 22 and the second shielding plate 313 to form a second slot 1〇2. The left and right sides of the second slot 1 〇 2 are defined by the side walls 14 of the insulating housing 界定 defining the second groove portion 13. By guiding the anti-slipping portion 322 obliquely, the socket of the first slot ιι is asymmetric, thereby achieving the anti-staying effect, and the two side flaps 32, 33 are located on both sides of the first slot 101. And the side wall 23 of the metal casing 2 on the outer side thereof can enhance the electromagnetic shielding effect. In addition, the insulative housing 1 further has a first tongue 15 projecting from the first slot and a second tongue 16 projecting from the second slot 1〇2. The two side flaps 32, 33 of the metal holding member 3 further have a clamping elastic piece 34 provided on the upright portions 321, 331 and a grounding portion 37 extending from the upright portions 321, 331 and contacting the first end wall 23 ( Referring to FIG. 6 and FIG. 7), the body 31 further has two clamping springs 35 disposed on the first shielding plate 312 and two clamping elastic pieces 36 disposed on the second shielding plate 313. The first end wall 21 and the second end wall 22 of the metal casing 2 are respectively provided with two clamping elastic pieces 24, 25, and the two side walls 23 6 recognize the grounding portion 26 extending in the second slot 1G2. The clamping elastic pieces 34, 3-5, 24 are used for clamping and fixing the plug connector (not shown) inserted into the first slot 〇1, and the clamping elastic piece 34 located in the side flaps 32, 33 can strengthen the clamping butt plug The holding force of the connection H can be made to the two sides of the metal casing of the plug connector: the connection: 'and the grounding portion 37 on the side flaps 32, 33 is electrically connected to the metal outer portion 2' to cause static electricity generated by the plug connector The ground loop of the circuit board 8 can be conducted via the metal casing 2. In addition, the elastic holding elastic pieces %, 25 are used for clamping and fixing the plug connector (not shown) inserted into the second slot 102, and the grounding portion 26 on the side wall 23 of the metal casing 2 can be combined with the metal casing of the plug connector. The side forms an electrical connection' such that static electricity generated by the plug connector can be conducted to the ground return of the circuit board 8 via the metal housing 2. The first terminal 4 is disposed on the insulative housing and each has a first contact portion 41 disposed on the first tongue plate 15 and extends rearward from the first contact portion 41. The first fixing portion d extends rearwardly from the 42nd portion. a first extension portion 43, and a first guide portion 44 that is bent downward by the first extension portion 43. The first contact portion is provided in the first tongue plate 15, that is, in the first slot (8) (first groove portion 12), and the first fixing portion 42 interferes with the insulating housing. The second terminals 5 are disposed on the insulative housing i and each have a second contact portion 51 disposed on the second tongue plate 16 , a second fixing portion 52 extending rearward from the second contact portion 51 , and a second fixing portion The 52 bends upwardly and then bends and extends back to the second extension portion 'and the second guide portion 54 which is bent downwardly from the second extension portion 53. The second contact portion 51 is provided on the second tongue plate 16, i.e., in the second slot 1〇2 (second groove P13). The second fixing portion 52 is interference-fixed with the insulating housing i. In addition, referring to FIG. 4, FIG. 6, and FIG. 8, the socket connector further includes a terminal positioning member 0 and a lower terminal positioning member 7 mounted on one of the insulating housings 1. The upper terminal locating member 6 has a plurality of grooves 61 corresponding to the rear end portions of the first extending portions 43 of the upper row of the first terminals 4, thereby clamping the first extending portions 43 of the first terminals 4, and The first extensions 43 are isolated from one another to avoid short circuits and string 9 interference. The lower terminal locating member 7 has a plurality of through holes 7 穿 corresponding to the first guiding portion 44 and the second guiding portion 4 54 , thereby positioning the first guiding portion and the second guiding portion 54 for convenient installation. The circuit board 8 electrically connects the first guiding portion 44 and the second guiding portion 54 with the circuit board 8. In this embodiment, the first terminal 4 is for transmitting a terminal group conforming to the video interface (Display P(m) signal. The second terminal $ includes a group of terminals for transmitting the symbol σ USB signal (shown in FIG. 4). The lower row of terminals L and ) in the second terminal $ and the group are used to transmit the terminal group conforming to the eSA D signal (the upper terminal group in the second terminal 5 of FIG. 4). Referring to FIG. 9 Xiao® 10, The second preferred embodiment of the stacked socket connector of the present invention is substantially the same as the first embodiment. However, in the second preferred embodiment, the two side cymbals 32 of the metal holding member 3 are respectively obliquely Connected to a guiding fool between the straight P 321 and the first shielding plate 312. By the side wing 32, the first shielding plate 312, together with the first end wall 2!' of the metal casing 2 The socket of the first slot ι〇ι can also achieve the foolproof effect of the upper and lower asymmetrical shapes. In addition, the first end of the second preferred embodiment is for transmitting the high resolution multimedia interface ( The end of the HDMI) signal is in the group. 101:= By guiding the foolproof portions 322, 322, the first slot 101 has an asymmetrical shape. Mouth, in order to achieve the anti-dwell effect, M393836 to avoid plug mis-insertion. And the two side flaps 32, 33, 32, located on the sides of the first slot 101, 101 'can improve the shielding effect, so it can achieve the purpose of this new type. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent changes and modifications made by the novel patent application scope and the new description content are It is still within the scope of the present patent. [Fig. 1 is a perspective view showing a conventional electrical connector; Fig. 2 is an exploded perspective view showing another conventional electrical connector; 1 is a perspective view of a stacked socket connector of the present invention; FIG. 4 is an exploded perspective view of FIG. 3; FIG. 5 is a front view of FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 6; FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 6; and FIG. 9 is a perspective exploded view showing the stacked socket connector of the present invention < second preferred Example 10 and Fig. 10 is a front view of a combination of Fig. 9. 9 M393836 [Explanation of main component symbols] 1 ....... • Insulation housing 321... •...Upright part 101 ··· Slot 322... • Guide stagnation unit 102 ... 苐 one slot 33"... • flank 11 •...· & partition 331 ··· •... upright part 12••... •... A groove portion 34····...holds the elastic piece 13•...the second groove portion 35.........the clamping elastic piece 14••... •...the side wall 36... •...the holding elastic piece 15····· - Brother tongue 37... Grounding 16... •...Second tongue 4.........•...First terminal 2...•...Metal housing 41...•...first contact 21... ...the first end wall 42...the first fixing portion 22...the second end wall 43...the first extension 23 ·..·the side wall 44...the first guiding portion 24... ...clip the shrapnel 5 . . . • the second terminal 25... • the clamping spring 51... the second contact portion 26... the grounding portion 52... the second fixing portion 27...... •...Back cover 53... Second extension 3 . . . • metal clip 54 ... second guide 31 ... • body 6 . . . ... upper terminal locator 311... ...front plate 61.........trench 312...•...first shielding plate 7............lower terminal positioning member 313... brother--shield plate 71......perforation 32... 8 ....... .... Circuit board 10 M393836 101, ... the first slot 312, ... brother screen board V ... ... metal peripherals 32, ..... ... flank 21, ..... ...the first end wall 321 , ... the upright portion 3, ... the metal holding member 322, ... guides the foolproof portion