201134025 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種電連接器’特別係涉及該電連接器之接 地結構。 [0002] [先前技術】 2001年12月5日公告之公告號為CN2463978之中國大陸 專利揭示了一種電連接器，其包括複數導電端子、供導 電端子連接之子電路板、相互扣合之前殼體及後殼體， 〇 子電路板之後表面上設有接地點，後殼體具有一與子電 路板後表面平行相對之殼後壁’殼後壁之上端部向接地 點延伸出一懸伸彈臂，懸伸彈臂自由端部直接抵接於接 地點上。此設計中主要利用後殼體、懸伸彈臂及子電路 板三者之配合實現接地，懸伸彈臂直接抵接於接地點， 懸伸彈臂與子電路板無i焊接，接地效果較好。 [0003] 【發明内容】 本發明所要解決之技術問題在於提供一種接地效果較好 〇 [0004] 之電連接器。 - Ί,；. 為解決以上技術問題，本發明提供一種電連接器，其包 括複數導電端子、供導電端子連接之子電路板、圍設於 子電路板外側之第一和第二殼體及設於第二殼體上之懸 伸彈臂’子電路板設有供懸伸彈臂抵接之接地點，懸伸 彈臂設有與第一殼體配合之抵接部及與子電路板配合之 接觸部，第一殼體抵壓抵接部從而使接觸部以合適接觸 力抵接於接地點上。 [0005] 先前技術主要利用後殼體、懸伸彈臂及子電路板三者之 099109945 表單編號A0101 笛q苜/+L 〇9 W 弟^貝/共厶頁 0992017552-0 201134025 配合實現接地，释伸强 性變形，從軸子電路=與子電路板間發生彈 主要利用第—、第_^路板祕抵接之彈力，本發明 弟一风體、懸伸彈臂及子電路板四者之 配合、現接地’通過第—殼體抵壓懸伸彈臂使懸伸彈臂 彈性Μ ’從而驅使接觸部以合適接觸力抵接於接地點 ’第一设體之抵壓在接地過程中發揮了重要作用，本發 月第成體之參與實現懸伸彈臂與子電路板穩定彈 f生抵接相對於先前技術實現接地之技術手段不同，第 -殼體原本已經存在，因此電連接器成本並未增加，第 一咸體對抵接部之抵壓可使接觸部以合適接觸力與接地 點穩疋彈性接觸，因此本發明接地效果相對於先前技術 同樣也較好。 [0006] [0007] [0008]201134025 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to an electrical connector' particularly relating to the ground structure of the electrical connector. [0002] [Prior Art] The Chinese Patent Publication No. CN2463978, published on Dec. 5, 2001, discloses an electrical connector including a plurality of conductive terminals, a sub-circuit board for connecting the conductive terminals, and a front housing And a rear housing, the rear surface of the circuit board is provided with a grounding point, and the rear housing has a shell rear wall parallel to the rear surface of the sub-board. The upper end of the rear wall of the shell extends a hanging bullet toward the grounding point. The arm, the free end of the overhanging arm directly abuts the grounding point. In this design, the grounding is mainly realized by the cooperation of the rear casing, the overhanging elastic arm and the sub-circuit board. The overhanging elastic arm directly abuts the grounding point, and the overhanging elastic arm and the sub-circuit board are not welded, and the grounding effect is better. it is good. SUMMARY OF THE INVENTION [Technical Problem] The technical problem to be solved by the present invention is to provide an electrical connector with better grounding effect [0004]. In order to solve the above technical problem, the present invention provides an electrical connector including a plurality of conductive terminals, a sub-circuit board for connecting the conductive terminals, and first and second housings and a housing surrounding the sub-board The overhanging elastic arm 'sub-circuit board on the second casing is provided with a grounding point for the overhanging elastic arm to abut, and the overhanging elastic arm is provided with an abutting portion matched with the first casing and matched with the sub-circuit board In the contact portion, the first housing abuts against the abutting portion so that the contact portion abuts on the grounding point with a suitable contact force. [0005] The prior art mainly utilizes the back casing, the overhanging elastic arm and the sub-circuit board of the 099109945 form number A0101 flute q苜/+L 〇9 W brother ^bei / total 0 page 0992017552-0 201134025 cooperate to achieve grounding, The extension of the strong deformation, from the axle circuit = between the sub-circuit board, the main use of the first -, the _ ^ road board secret contact elastic, the invention of a wind body, overhang elastic arm and sub-board four Cooperate with the grounding, 'the first shell is pressed against the overhanging elastic arm to make the overhanging elastic arm elastically Μ', thereby driving the contact portion to abut the grounding point with a suitable contact force. It plays an important role, and the first part of the month participates in the realization that the overhanging elastic arm and the sub-board stable contact are different from the technical means of grounding in the prior art. The first-shell originally existed, so the electricity The cost of the connector is not increased, and the pressing of the first salt to the abutting portion allows the contact portion to be in stable elastic contact with the grounding point with a suitable contact force, and therefore the grounding effect of the present invention is also superior to the prior art. [0007] [0008] [0008]
以下結合圖式及實施方式對本創作進一步說明。 【實施方式】 请參照第一圖、第三圖及第四圖所示，本發明第一實施 例揭不—種電連接器1〇〇 ’所述電連接器100可與對接連 接器（未圖示）配合並可安裝於外部電路板（未圖示） ’所述電連接器100包括絕緣本體10、包覆於絕緣本體1〇 上之金屬殼體20、安裝於絕緣本體10上之端子模組30、 USB端子40和指示裝置5〇及設於金屬殼體2〇上之懸伸彈 臂60。 請參照第一圖及第三圖所示，所述絕緣本體1〇包括大體 平行於竪直平面之前壁Π、自前壁π底端向後延伸之底 壁12、自前壁11之相對兩側向後延伸之兩側壁丨3及自前 壁11上端向後延伸並與底壁12相對之頂壁14。前壁11開 099109945 表單編號A0101 第4頁/共22頁 0992017552-0 201134025 設有供對接連接器插入之對接端口 11 0。兩側壁1 3設有扣 持機構130 ’所述扣持機構130向後延伸且其内側設有倒 鉤 131。 [0009] Ο ❹ [0010] 請參照第一圖至第四圖所示，所述金屬殼體2 0包括相互 扣合之第一殼體21和第二殼體22。所述第一殼體21包括 包覆前壁Π之殼對接壁210及自殼對接壁210頂端垂直向 後延伸之第一殼壁211。所述殼對接壁210設有供對接連 接器插入之對接框口 2100及自殼對接壁210左右兩側向後 延伸之第一卡持部2101，所述第一卡持部2101上設有第 一卡持孔2102。所述第一殼壁211設有自其左右兩側向下 延伸之第二卡持部2110，所述第二卡持部2110上設有第 二卡持孔2111。所述第二殼體22包括與殼對接壁210平 行相對之第二殼壁220、自第二殼壁220左右兩侧垂直向 前延伸之殼左右側壁221。所述殼左右侧壁221設有扣持 於第一卡持孔2102内之第一凸月2210、扣持於第二卡持 孔2111内之第二凸片2211及向下延伸並可插入安裝於外 部電路板之接地脚2 212。 請參照第二圖及第三圖所示，所述端子模組30包括複數 導電端子300、連接有導電端子300之子電路板301。導 電端子300包括設於子電路板301前側之RJ端子3000及設 於子電路板301底部之轉接端子3001。扣持機構130將子 電路板301扣持於絕緣本體上’所述子電路板301與殼 對接壁210及第二殼壁220平行並與第一殼壁211相垂直 設置，其上設有與第一殼壁211相對之側表面3010及設於 侧表面3010上之接地點3011，側表面3010上形成有貫通 099109945 表單編號Α0101 第5頁/共22頁 0992017552-0 201134025 子電路板301相對兩侧之凹面3〇12，凹面3〇12平行於子 電路板301之所有載面為曲率半徑相同之圓弧，如此凹面 3012可用鑽頭一次加工完成，凹面3〇丨2上設有導電材料 以形成接地點3011。 [0011] 請參照第三圖、第四圖所示，懸伸彈臂6〇包括自第二殼 壁220之上化向子電路板3〇1方向延伸並與第一殼壁Η】 配合之抵接部600及自抵接部6〇〇繼續延伸出並與子電路 板301配合之接觸部601。抵接部6〇〇設有向第一殼壁211 凸出並抵接於第一殼壁211之凸出部moo。接觸部6〇1包 括自凸出部60 0 0延伸出之連接段6〇1〇及自連接段6〇1〇彎 折延伸出並抵接接地點3011之接觸段6011，連接段6010 連接接觸段6011與凸出部6〇〇〇。第一殼體21抵壓抵接部 600從而使接觸部601以合適接觸力抵接於接地點3〇11上 ’凹面3012之設置可限位接觸部6〇1，促進接觸部6〇1準 確抵接於接地點3011上而不會抵偏到子電路板3〇1之其他 部位。在本實施例中懸伸彈臂6〇與第二殼體22 —體成型 並自第二殼壁220之上端向電連接器1〇〇内延伸，當然懸 伸彈臂60也可通過安裝之方式固持於第二殼體22上’此 時抵接部600之一端可安裝固持於第二殼壁220上。 [0012] 請參照第二圖及第三圖所示，組襄時，第一步將端子模 組30、USB端子40和指示裝置50安裝於絕緣本體10上； 第二步組裝第二殼體22及懸伸彈臂6〇，首先，將第二殼 體22安裝於絕緣本體10上，懸伸彈臂6〇之接觸部601處 於與接地點3011相對應之位置，在本實施例中此時接觸 部601與接地點3011相分離，當然此時接觸部6〇1也可搭 099109945 表單編號A0101 第6頁/共22頁 0992017552-0 201134025 Ο [0013] Ο 099109945 接於接地點3011，只是此時接觸部601與接地點3〇11之 接觸強度不夠’此時由於懸伸彈臂60與接地點3011未接 觸或搭接於接地點3011 ’使得懸伸彈臂60與子電路板 301之接觸力為零或很小，從而第二殼體22可較好地安裝 到位並保持與絕緣本體1 〇及端子模組3 〇之相對位置，如 此有利於後續第一殼體21與第二殼體22之扣合更有效率 進行；第三步係將第一殼體21安裝於絕緣本體1〇上並與 第二殼體22相扣合，首先第一凸片221〇卡扣於第—殼體 21之第一卡持孔21〇2中，然後第一殼壁211之第二卡持 孔2111向下扣合於第二凸片2211上，在扣合過程中第一 喊壁211向電連接器内抵壓抵接部6⑽從而使接觸部 601以合適接觸力抵接於接地點3011上。 請參照第五圖及第六圖，本發明第二實_揭示了電連 接益100 ，電連接器1〇〇’具有懸伸_臂6〇，，除懸伸 彈#60外’電連接器1〇〇，之其他部分與第—實施例電 連接器100完全相同，因此電連接器1〇◦，之其他部分標 號將沿用第一實施例標號。懸伸彈臂60’包括自第二殼 壁220之上端向子電路板301方向延伸之連接部602，、 自連接部602’前端繼續延伸出並與第一殼壁211配合之 抵接部6〇〇， 同樣自連接部602’前端繼續延伸出並與 電路板301 S己合之接觸部601，.，抵接部600，對稱設 於接觸部6〇1， ,^ <相對兩側，抵接部6 0 0 ’自連接部6 0 2 邻602^延伸出接觸部6〇1’之位置相對兩側延伸出，連接 連接抵接邹6〇〇，與第二殼體22並且還連接接觸 邵6 0 Γ輿笸_ 、一吸體22。抵接部600，設有向第一殼壁 表單編號ΑΟίοι 第7頁/共22頁 0992017552-0 201134025 211呈弧形凸出並抵接於第一殼壁211之凸出部6〇〇〇,。 接觸部601包括自連接部6〇2，延伸出之連接段6〇1〇，及 自連接&6〇1〇彎.折延伸出並抵接接地點^川之接觸段 6011 ，連接段6010，連接接觸段6〇丨丨，與連接部6〇2 ，，接觸段6011，呈與凹面3012形狀相對應之弧形，以 增強接觸段6011’與凹面3〇1 2上之接地點3〇11之接觸穩 定性。在第一殼壁211與第二殼體22扣合過程中第一殼壁 211向電連接器1〇〇’内抵壓抵接部6〇〇’從而使接觸部 601以合適接觸力抵接於接地點3〇11上。本第二實施例 中懸伸彈臂60，與第二殼體22 —體成型並自第二殼壁22〇 〇 之上端向電連接器1〇〇’内延伸，當然懸伸彈臂60’也可 通過安裝之方式固持於第二殼體22上，此時連接部6〇2， 之一部分可安裝固持於第二殼壁22〇。 [0014] 請參照第七圖及第八圖，本發明第三實施例揭示了電連 接器100’ ’，電連接器1〇〇，，具有懸伸彈臂6〇，，, 除懸伸彈臂60，，外，電連接器100，’之其他部分與第 實施例電連接器100也完全相同，因此電連接器1〇〇， 之其他部分標號也將沿用第一實施例標號。懸伸彈臂 60’ ’包括自第二殼壁220之上端向子電路板3〇1方向延 伸之連接部602 、自連接部602’ ’前端繼續延伸出 並與第一殼壁211配合之抵接部600，，、同樣自連接部 6〇2’ ’前端繼續延伸出並與子電路板3〇1配合之接觸部 ’及衝切抵接部600’ ’而形成之通口 6〇3’，， 連接部602，’連接抵接部600，’與第二殼體22並且還 連接接觸部60Γ ’與第二殼體22。接觸部60Γ，自懸 099109945 表單蝙號A0101 第8頁/共22頁 0992017552-0 201134025 伸彈臂60’ ’衝切而成。抵接部600’，設有向第一殼壁 211呈弧形凸出並抵接於第一殼壁211之凸出部6〇〇〇，， 。接觸部601包括自連接部602’ ’延伸出之連接段β〇ι〇 及自連接段6 01 0 ’’彎折延伸出並抵接接地點3 〇 11 之接觸段6011，，，連接段6010，，連接接觸段6011， ’與連接部602’ ’ 。接觸段6011’，呈與凹面3〇12形 狀相對應之弧形，以增強接觸段6011，’與凹面3012上 之接地點3011之接觸穩定性。在第一殼壁211與第二殼體 22扣合過程中第一殼壁211向電連接器1〇〇’ ’内抵歷抵 接部600’ ’從而使接觸部601’ ’以合適接觸力抵接於 接地點3011上。本第三實施例中懸伸彈臂6〇，，與第二 殼體22 —體成型並自第二殼壁220之上端向電連接器 ’’内延伸，當然懸伸彈臂60’ ’也可通過安裝之方式 固持於第二殼體22上，此時連接部602’，之一部分可安 裝固持於第二殼壁220。 [0015] 综上所述，本創作確已符合發明專利之要件，爰依法提 出專利申請。惟’以上所峰考傳係丰貪i作之較佳實施方 式，本創作之範圍並不以上述實施方式爲限，舉凡熟習 本案技藝之人士援依本創作之精神所作之等效修飾或變 化，皆應涵以下申請專利範圍内。 【圖式簡單說明】 [0016] 第一圖係本發明電連接器第一實施例之立體圖。 [0017] 第二圖係本發明電連接器子電路板之正視圖。 [0018] 第三圖係本發明電連接器第一實施例之分解圖。 099109945 表單编號A0101 第9頁/共22頁 0992017552-0 201134025 [0019] 第四圖係本發明電連接器第一實施例沿第一圖中IV-IV線 之剖視圖。 [0020] 第五圖係本發明電連接器第二實施例之分解圖。 [0021] 第六圖係本發明電連接器第二實施例之剖視圖。 [0022] 第七圖係本發明電連接器第三實施例之分解圖。 [0023] 第八圖係本發明電連接器第三實施例之剖視圖。 【主要元件符號說明】 [0024] 絕緣本體 10 [0025] 電連接器 100、100，、100，’ [0026] 前壁11 [0027] 對接端口 110 [0028] 底壁12 [0029] 兩側壁13 [0030] 扣持機構 130 [0031] 倒鉤131 [0032] 頂壁14 [0033] 金屬殼體 20 [0034] 第一殼體 21 [0035] 殼對接壁 210 [0036] 對接框口 2100 表單編號A0101 第10頁/共22頁 099109945 0992017552-0 201134025 [0037] 第一卡持部2101 [0038] 第一卡持孔2102 [0039] 第一殼壁211 [0040] 第二卡持部2110 [0041] 第二卡持孔2111 [0042] 第二殼體22 [0043] 第二殼壁220 [0044] 殼左右側壁221 [0045] 第一凸片2210 . [0046] 第二凸片2211 - [0047] 接地脚2 212 [0048] 端子模組30 [0049] 導電端子300 〇 [0050] RJ端子3000 [0051] 轉接端子3001 [0052] 子電路板301 [0053] 侧表面3010 [0054] 接地點3011 [0055] 凹面3012 099109945 表單編號A0101 第11頁/共22頁 09920Π552-0 602’ [0065]通口 603，’ USB端子40 指示裝置5 0 懸伸彈臂60、60’ 抵接部600、600’ 凸出部 接觸部 連接段 接觸段 201134025 [0056] [0057] [0058] [0059] [0060] [0061] [0062] [0063] [0064] 連接部 、60’， 、600’ ’ 6000 ' 6000’ ' 6000' ’ 601 、 601’ 、 601’ ’ 6010 、 6010’ 、 6010， ’ 6011 、 6011， 、 6011， ’ 、602’ ’ 099109945 表單編號A0101 第12頁/共22頁 0992017552-0The present invention will be further described below in conjunction with the drawings and embodiments. [Embodiment] Referring to the first, third, and fourth figures, the first embodiment of the present invention discloses that the electrical connector 100 can be connected to the connector (not The electrical connector 100 includes an insulative housing 10 , a metal housing 20 encased on the insulative housing 1 , and a terminal mounted on the insulative housing 10 . The module 30, the USB terminal 40 and the indicating device 5 and the overhanging elastic arm 60 provided on the metal casing 2 are mounted. Referring to the first and third figures, the insulative housing 1 includes a bottom wall substantially parallel to the vertical plane, a bottom wall 12 extending rearward from the bottom end of the front wall π, and opposite sides of the front wall 11 Two side walls 向3 extending rearward and a top wall 14 extending rearward from the upper end of the front wall 11 and opposed to the bottom wall 12. Front wall 11 open 099109945 Form No. A0101 Page 4 of 22 0992017552-0 201134025 There is a docking port 11 0 for the docking connector to be inserted. The side walls 13 are provided with a fastening mechanism 130'. The fastening mechanism 130 extends rearward and has a barb 131 on the inner side thereof. [0009] Referring to the first to fourth figures, the metal casing 20 includes a first casing 21 and a second casing 22 that are engaged with each other. The first housing 21 includes a shell abutting wall 210 covering the front wall and a first shell wall 211 extending vertically rearward from the top end of the shell docking wall 210. The shell docking wall 210 is provided with a mating frame port 2100 for inserting the mating connector, and a first latching portion 2101 extending rearward from the left and right sides of the shell mating wall 210. The first latching portion 2101 is provided with a first The hole 2102 is held. The first housing wall 211 is provided with a second latching portion 2110 extending downward from the left and right sides thereof, and the second latching portion 2110 is provided with a second latching hole 2111. The second casing 22 includes a second casing wall 220 that is opposite to the casing abutting wall 210, and a casing left and right sidewalls 221 that extend vertically forward from the left and right sides of the second casing wall 220. The left and right side walls 221 of the shell are provided with a first convex 2210 that is fastened in the first holding hole 2102, a second tab 2211 that is fastened in the second holding hole 2111, and extends downward and can be inserted into the mounting. Ground pin 2 212 on the external board. Referring to the second and third figures, the terminal module 30 includes a plurality of conductive terminals 300 and a sub-circuit board 301 to which the conductive terminals 300 are connected. The conductive terminal 300 includes an RJ terminal 3000 provided on the front side of the sub-board 301 and a transfer terminal 3001 provided at the bottom of the sub-board 301. The latching mechanism 130 fastens the sub-board 301 on the insulative housing. The sub-board 301 is parallel to the shell abutting wall 210 and the second shell wall 220 and perpendicular to the first shell wall 211. The first shell wall 211 is opposite to the side surface 3010 and the grounding point 3011 is provided on the side surface 3010. The side surface 3010 is formed with a through-hole 099109945. Form No. 1010101 Page 5 / Total 22 Pages 0992017552-0 201134025 Sub-board 301 The concave surface 3〇12 of the side, the concave surface 3〇12 is parallel to all the planes of the sub-circuit board 301, and the concave surface 3012 can be completed by one bit at a time, and the concave surface 3〇丨2 is provided with a conductive material to form Ground point 3011. [0011] Please refer to the third figure and the fourth figure, the overhanging elastic arm 6 〇 includes extending from the second shell wall 220 toward the sub-board 3〇1 and cooperating with the first shell wall Η The abutting portion 600 and the self-abutting portion 6A continue to extend and contact the contact portion 601 of the sub-board 301. The abutting portion 6 is provided with a projection mo that protrudes toward the first casing wall 211 and abuts against the first casing wall 211. The contact portion 6〇1 includes a connecting portion 6〇1〇 extending from the protruding portion 60 0 0 and a connecting portion 6011 extending from the connecting portion 6〇1〇 and abutting against the grounding point 3011, and the connecting portion 6010 is in contact with the connecting portion 6010. The segment 6011 and the projection 6 are. The first housing 21 abuts against the abutting portion 600 so that the contact portion 601 abuts on the grounding point 3〇11 with a suitable contact force to set the limitable contact portion 6〇1 of the concave surface 3012, thereby promoting the accuracy of the contact portion 6〇1. It abuts on the grounding point 3011 without being biased to other parts of the sub-board 3〇1. In this embodiment, the overhanging elastic arm 6 — is integrally formed with the second housing 22 and extends from the upper end of the second housing wall 220 into the electrical connector 1 ,. Of course, the overhanging elastic arm 60 can also be mounted. The method is fixed on the second casing 22. At this time, one end of the abutting portion 600 can be mounted and fixed on the second casing wall 220. [0012] Please refer to the second figure and the third figure. When assembling, the first step is to install the terminal module 30, the USB terminal 40 and the indicating device 50 on the insulative housing 10; the second step is to assemble the second housing. 22 and the overhanging elastic arm 6〇, firstly, the second housing 22 is mounted on the insulative housing 10, and the contact portion 601 of the overhanging elastic arm 6〇 is at a position corresponding to the grounding point 3011, in this embodiment The contact portion 601 is separated from the grounding point 3011. Of course, the contact portion 6〇1 can also be used as 099109945. Form No. A0101 Page 6 / Total 22 Pages 0992017552-0 201134025 Ο [0013] Ο 099109945 Connected to the grounding point 3011, only At this time, the contact strength between the contact portion 601 and the grounding point 3〇11 is insufficient. At this time, since the overhanging elastic arm 60 is not in contact with the grounding point 3011 or is overlapped with the grounding point 3011', the overhanging elastic arm 60 and the sub-circuit board 301 are The contact force is zero or small, so that the second housing 22 can be better mounted in position and maintained in position relative to the insulative housing 1 and the terminal module 3, thus facilitating subsequent first housing 21 and second housing The fastening of the body 22 is more efficient; the third step is to install the first housing 21 in insulation The body 1 is fastened to the second housing 22, and first the first tab 221 is snapped into the first latching hole 21〇2 of the first housing 21, and then the second shell wall 211 is second. The latching hole 2111 is fastened to the second tab 2211. During the fastening process, the first shouting wall 211 presses the abutting portion 6 (10) into the electrical connector, so that the contact portion 601 abuts with a suitable contact force. Location 3011. Referring to the fifth and sixth figures, the second embodiment of the present invention discloses an electrical connection benefit 100, and the electrical connector 1〇〇' has an overhang_arm 6〇, except for the overhanging bullet #60. 1 〇〇, the other parts are identical to the first embodiment electrical connector 100, so the electrical connector 1 〇◦, the other parts of the number will follow the first embodiment. The overhanging elastic arm 60' includes a connecting portion 602 extending from the upper end of the second casing wall 220 toward the sub-board 301, and an abutting portion 6 extending from the front end of the connecting portion 602' and engaging with the first casing wall 211. 〇〇, the contact portion 601, which is further extended from the front end of the connecting portion 602' and connected to the circuit board 301, is symmetrically disposed on the opposite sides of the contact portion 6〇1, . The abutting portion 6 0 0 'the self-connecting portion 6 0 2 the adjacent portion 602 ^ extends from the position of the contact portion 6〇1' to extend opposite to the two sides, and the connecting connection abuts the second housing 22 and is also connected Contact Shao 6 0 Γ舆笸 _, a suction body 22. The abutting portion 600 is provided with a protrusion 6 呈 which protrudes from the first shell wall form number ΑΟίοι Page 7 / 22 pages 0992017552-0 201134025 211 and abuts against the first shell wall 211, . The contact portion 601 includes a connecting portion 6〇1〇 extending from the connecting portion 6〇2, and a connecting portion 6011 extending from the connecting & 6〇1〇 bending and abutting the grounding point, the connecting portion 6010 The connecting contact portion 6〇丨丨, and the connecting portion 6〇2, the contact portion 6011, has an arc shape corresponding to the shape of the concave surface 3012 to enhance the grounding point on the contact portion 6011' and the concave surface 3〇1 2 11 contact stability. During the fastening process of the first casing wall 211 and the second casing 22, the first casing wall 211 presses against the abutting portion 6〇〇 in the electrical connector 1〇〇', so that the contact portion 601 abuts with a suitable contact force. At the grounding point 3〇11. In the second embodiment, the overhanging elastic arm 60 is integrally formed with the second housing 22 and extends from the upper end of the second housing wall 22 to the electrical connector 1 〇〇 ', of course, the overhanging arm 60' It can also be fixed to the second casing 22 by means of installation. At this time, a part of the connecting portion 6〇2 can be mounted and held on the second casing wall 22〇. [0014] Referring to FIG. 7 and FIG. 8 , a third embodiment of the present invention discloses an electrical connector 100 ′′, an electrical connector 1 〇〇, having a cantilever arm 6 〇 , , , , , , , , , , , , , , The other portions of the arm 60, the outer, electrical connector 100, 'are identical to those of the first embodiment electrical connector 100, so that the other portions of the electrical connector 1'' will also follow the first embodiment. The overhanging elastic arm 60'' includes a connecting portion 602 extending from the upper end of the second casing wall 220 toward the sub-board 3〇1, and extending from the front end of the connecting portion 602'' and engaging with the first casing wall 211 The connecting portion 600, the port 6〇3' formed by the contact portion 'and the punching abutting portion 600'' extending from the front end of the connecting portion 6〇2'' and extending to the sub-board 3〇1 The connecting portion 602, 'connects the abutting portion 600,' to the second housing 22 and also connects the contact portion 60' with the second housing 22. Contact part 60Γ, self-suspending 099109945 Form bat number A0101 Page 8 of 22 0992017552-0 201134025 The stretch arm 60' ́ is die-cut. The abutting portion 600' is provided with a projection portion 6 which is convexly curved toward the first casing wall 211 and abuts against the first casing wall 211. The contact portion 601 includes a connecting portion β〇ι〇 extending from the connecting portion 602′′ and a contact portion 6011 extending from the connecting portion 610 0′′ and abutting against the grounding point 3 〇11, and the connecting portion 6010 , connecting the contact segments 6011, 'with the connecting portion 602''. The contact portion 6011' has an arc shape corresponding to the shape of the concave surface 3〇12 to enhance the contact stability of the contact portion 6011, ' with the ground point 3011 on the concave surface 3012. During the fastening process of the first casing wall 211 and the second casing 22, the first casing wall 211 abuts against the abutting portion 600' in the electrical connector 1'' so as to make the contact portion 601'' with a suitable contact force. Abuts on the grounding point 3011. In the third embodiment, the overhanging elastic arm 6 is integrally formed with the second housing 22 and extends from the upper end of the second housing wall 220 toward the electrical connector, and of course the overhanging arm 60'' It can be fixed to the second casing 22 by means of installation. At this time, one of the connecting portions 602' can be mounted and fixed to the second casing wall 220. [0015] In summary, the creation has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the scope of this creation is not limited to the above-mentioned implementation methods, and the equivalent modifications or changes made by those who are familiar with the skill of the present invention in accordance with the spirit of this creation. All should be within the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0016] The first figure is a perspective view of a first embodiment of an electrical connector of the present invention. [0017] The second drawing is a front view of the electrical connector sub-board of the present invention. [0018] The third drawing is an exploded view of the first embodiment of the electrical connector of the present invention. 099109945 Form No. A0101 Page 9 of 22 0992017552-0 201134025 [0019] The fourth drawing is a cross-sectional view of the first embodiment of the electrical connector of the present invention taken along line IV-IV in the first drawing. [0020] FIG. 5 is an exploded view of a second embodiment of the electrical connector of the present invention. [0021] Figure 6 is a cross-sectional view of a second embodiment of the electrical connector of the present invention. [0022] Figure 7 is an exploded view of a third embodiment of the electrical connector of the present invention. [0023] Figure 8 is a cross-sectional view of a third embodiment of the electrical connector of the present invention. [Main Component Symbol Description] [0024] Insulating Body 10 [0025] Electrical Connector 100, 100, 100, '[0026] Front Wall 11 [0027] Docking Port 110 [0028] Bottom Wall 12 [0029] Two Side Walls 13 [0030] Bucking Mechanism 130 [0031] Barb 131 [0032] Top Wall 14 [0033] Metal Housing 20 [0034] First Housing 21 [0035] Shell Butt Wall 210 [0036] Docking Frame Port 2100 Form Number A0101 Page 10 / Total 22 Pages 099109945 0992017552-0 201134025 [0037] First holding portion 2101 [0038] First holding hole 2102 [0039] First housing wall 211 [0040] Second holding portion 2110 [0041 The second holding hole 2111 [0042] The second housing 22 [0043] The second housing wall 220 [0044] The left and right side walls 221 of the housing [0045] The first tab 2210. [0046] The second tab 2211 - [0047] ] Grounding Leg 2 212 [0048] Terminal Module 30 [0049] Conductive Terminal 300 〇 [0050] RJ Terminal 3000 [0051] Adapter Terminal 3001 [0052] Sub Board 301 [0053] Side Surface 3010 [0054] Ground Point 3011 [0055] Concave surface 3012 099109945 Form No. A0101 Page 11 of 22 09920Π552-0 602' [0065] Port 603, 'USB terminal 40 indicating device 5 0 Stretching arm 60, 60' abutting portion 600, 600' protruding portion contact portion connecting portion contact portion 201134025 [0056] [0058] [0064] [0064] [0064] ] Connection, 60', 600' '6000 ' 6000' '6000' '601, 601', 601' '6010, 6010', 6010, '6011, 6011, 6011, ', 602' ' 099109945 Form number A0101 Page 12 of 22 0992017552-0