M340646 八、新型說明： 【新型所屬之技術領域】 〇本創作涉及一種電連接器，尤其涉及一種插座連接 器、插頭連接器及插座插頭連接器組合。 【先前技術】 。按，插座插頭連接器組合具有插座連接器和插頭連接 器，插頭連接器具有複數個插頭端子，插座連接器具有複 φ 數個插座端子。當插頭連接器與插座連接器對接時，插頭 端子分別與插座端子抵接，從而實現插頭連接器和插座連 接器之間的訊號傳輸。 惟，習知插頭連接器之插頭端子與插座連接器之插座 端子只從一侧進行單點接觸，這種接觸結構之插頭端子和 插座端子的結構簡單，但在受到衝擊和震動等因素影響 時，插頭端子與插座端子之間的連接容易發生瞬斷。 ^ 【新型内容】 - 本創作目的之一在於針對上述習知技術之不足提供一 種插座端子可與相對接的插頭連接器之插頭端子穩定可靠 連接的插座連接器。 本創作目的之二在於提供一種插頭端子可與相對接插 座連接器的插座端子穩定可靠連接的插頭連接器。 本創作目的之三在於提供一種插座連接器的插座端子 與插頭連接器之插頭端子連接穩定可靠的插座插頭連接器 組合。 M340646 為達成上述目的之_，本創作所提供插座連接器包 括：一絕緣本體，其上開設有複數插座端子槽；及複數插 座端子，分職持於—麵端子槽内，插座端 部，基板部上延伸有-彈臂，彈臂的末端弯折延4:: 接部、’基板部的_端延伸有—接觸部。 — 為達成上述目的之二，本創作所提供插頭連接器包 一、錄主體，其上開設有複數插頭端子槽；及複數插 頭端子’分別收容於_插頭端子槽内，插頭端子具有一固 、板□持板上延伸有—彈抵部，彈抵部包括—抵壓部； 固持板的—端延伸出—連接部，連接部的中部具有-連接 段。 ★人為達成上述目的之二，本創作所提供插座插頭連接器 組合包括··一插座連接器，包括一絕緣本體和複數插座端 子’絕緣本體上開設有複數插座端子槽，複數插座端子分 別固持於—插座端子槽内，插座端子具有基板部，基板部 ^延伸有—彈臂’彈料末端彎折延伸有-抵接部，基板 15的端延伸有-接觸部；及一插頭連接器，包括一絕緣 主體和複數㈣端子，絕緣主體上開設有複數插頭端子 I複數插頭鳊子分別收容於一插頭端子槽内，插頭端子 >、有固持板，固持板延伸有一彈抵部，彈抵部包括一可 氐頂於一插座端子之接觸部上的抵壓部，固持板的一端延 &申出連接部，連接部的中部具有一可與插座端子之抵接 部抵接的連接段。 6 M340646 斤迷本創作插座連接器、插頭連接器及插座插 頭連接器、、且曰中，藉由插座端子之抵接部與接觸部及插頭 端子之抵壓部與連接段的結構設計，使相互對接的插座端 2與插頭端子可以形成兩點彈性接觸，從而接觸更加可 靠，在受到衝擊和震動等因素影響時，可有效避免出現連 接瞬斷的問題。 ‘ 【實施方式】 _ 為詳細說明本創作之技術内容、構造特徵、所達成目 的及功效’以下茲舉例並配合圖式詳予說明。 請參閲第一圖，本創作插座插頭連接器組合包括一插 座連接器10和一插頭連接器20。 明參閱弟一圖、第三圖和第四圖’插座連接器1〇包括 一絕緣本體110、複數第一插座端子12〇、複數第二插座端 子130和一金屬殼體140。 絕緣本體110具有一大致呈長方體形的基部ill,基部 籲 111的前表面向前延伸出一大致呈長方板狀的舌體部112， 基部111後端向下並向兩側延伸形成一擋沿113。基部111 之上表面和後端面的連接處開設有兩方形的勾持槽114。絕 緣本體110上開設有複數延伸到舌體部112之上表面的第 一插座端子槽115和複數延伸到舌體部112下表面的第二 插座端子槽116。 第一插座端子120具有一大致呈矩形板狀的基板部 121。基板部121收容於絕緣本體110之第一插座端子槽115 M340646 内’且基板部121上裁切出一長條狀的收容孔122和一沪 收容孔122方向延伸的彈臂123,彈臂123的末端斜向上彎 折延伸後再斜向下彎折延伸形成一抵接部124,該抵接部 124伸出第一插座端子槽115外。基板部12ι的一端緣的中 部延伸出一呈長方形的接觸部125,基板部121的另一端彎 折延伸出一焊腳部126。M340646 VIII. New description: [New technical field] The present invention relates to an electrical connector, and more particularly to a socket connector, a plug connector and a socket plug connector combination. [Prior Art]. Press, the socket plug connector combination has a socket connector and a plug connector, the plug connector has a plurality of plug terminals, and the socket connector has a plurality of socket terminals. When the plug connector is mated with the receptacle connector, the plug terminals abut the receptacle terminals, thereby effecting signal transmission between the plug connector and the receptacle connector. However, the plug terminal of the conventional plug connector and the socket terminal of the socket connector only have a single point contact from one side, and the plug terminal and the socket terminal of the contact structure are simple in structure, but are affected by factors such as shock and vibration. The connection between the plug terminal and the socket terminal is prone to short-circuit. ^ [New Content] - One of the purposes of the present invention is to provide a socket connector in which the socket terminal can be stably and reliably connected to the plug terminal of the opposite plug connector in view of the above-mentioned deficiencies of the prior art. The second object of the present invention is to provide a plug connector in which the plug terminal can be stably and reliably connected to the socket terminal of the mating connector. The third purpose of the present invention is to provide a stable and reliable socket plug connector combination of a socket terminal of a socket connector and a plug terminal of a plug connector. M340646 In order to achieve the above purpose, the socket connector provided by the present invention comprises: an insulative housing having a plurality of socket terminal slots; and a plurality of socket terminals, respectively, held in the terminal slot, the socket end, and the substrate The arm portion is extended on the upper portion, and the end of the elastic arm is bent and extended 4:: the connecting portion, and the end portion of the substrate portion has a contact portion. - In order to achieve the above objective, the plug connector package provided by the present invention has a plug main body, and a plurality of plug terminal slots are opened thereon; and a plurality of plug terminals are respectively received in the _ plug terminal slots, and the plug terminals have a solid, The plate holding plate has a protruding portion, the elastic abutting portion includes a pressing portion, the end portion of the holding plate extends from the connecting portion, and the middle portion of the connecting portion has a connecting portion. ★ In order to achieve the above purpose, the socket plug connector assembly provided by the present invention comprises: a socket connector, comprising an insulating body and a plurality of socket terminals. The insulating body is provided with a plurality of socket terminal slots, and the plurality of socket terminals are respectively fixed on - in the socket terminal slot, the socket terminal has a substrate portion, the substrate portion extends - the elastic arm 'bend end bends and extends - abutting portion, the end of the substrate 15 extends with a - contact portion; and a plug connector, including An insulating main body and a plurality of (four) terminals, the insulating main body is provided with a plurality of plug terminals I, and the plurality of plugs are respectively accommodated in a plug terminal slot, the plug terminal > has a holding plate, and the retaining plate extends with a resilient portion and a resilient portion The utility model comprises a pressing portion which can be mounted on the contact portion of the socket terminal, and one end of the holding plate extends and the connecting portion is formed. The middle portion of the connecting portion has a connecting portion which can abut the abutting portion of the socket terminal. 6 M340646 迷 本 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 创作 M 创作 M M M M M M M M M M M M M M M M M M M M M M M M M M M The socket end 2 and the plug terminal which are mutually butted can form two-point elastic contact, so that the contact is more reliable, and the problem of connection short-circuit can be effectively avoided when affected by factors such as shock and vibration. ‘ [Embodiment] _ To explain in detail the technical content, structural features, objectives, and effects of this creation, the following is a detailed description with reference to the drawings. Referring to the first figure, the inventive socket plug connector assembly includes a plug connector 10 and a plug connector 20. Referring to the drawings, the third and fourth figures, the receptacle connector 1 includes an insulative housing 110, a plurality of first receptacle terminals 12A, a plurality of second receptacle terminals 130, and a metal housing 140. The insulative housing 110 has a substantially rectangular parallelepiped base ill. The front surface of the base portion 111 extends forwardly to a substantially rectangular plate-shaped tongue portion 112. The rear end of the base portion 111 extends downwardly and extends to form a stop. Along 113. Two square hooking grooves 114 are formed at the joint between the upper surface and the rear end surface of the base portion 111. The insulating body 110 is provided with a plurality of first socket terminal slots 115 extending to the upper surface of the tongue portion 112 and a plurality of second socket terminal slots 116 extending to the lower surface of the tongue portion 112. The first socket terminal 120 has a substantially rectangular plate-shaped substrate portion 121. The substrate portion 121 is received in the first socket terminal slot 115 M340646 of the insulative housing 110, and an elongated receiving hole 122 and a spring arm 123 extending in the direction of the Shanghai receiving hole 122 are cut out from the substrate portion 121, and the elastic arm 123 is disposed. The end portion is bent obliquely upward and then bent obliquely downward to form an abutting portion 124 which protrudes out of the first socket terminal groove 115. A rectangular contact portion 125 extends from a middle portion of one end edge of the substrate portion 12i, and a solder leg portion 126 is bent at the other end of the substrate portion 121.
第二插座端子130與第一插座端子120形狀結構基本 相同，該第二插座端子130具有基板部131、收容孔132、 彈臂133、抵接部134、接觸部135和焊腳部136，基板部 131收容於第二插座端子槽116内。第二插座端子13〇與第 一插座端子120不同之處在於：抵接部134係由彈臂133 的末端先斜向下彎折再斜向上彎折形成，抵接部134伸出 第二插座端子槽116外。 所述金屬殼體140固持於絕緣本體11〇之基部ui上 並與絕緣本體110的舌體部112圍成一套接空間15〇。金屬 殼體140大致呈長方筒形，其具有一頂壁部14卜兩侧壁部 142和一底壁部143。金屬殼體140上裁切形成有兩分別: 一侧壁部142延伸到頂壁部141的卡持片孔144和兩大致 隨卡持片孔144延伸的卡持片145，卡持片145的末端具 -向金屬殼體14G内侧彎折後再向外侧彎折形成的卡持 1451。頂壁部141的後端彎折延伸出兩勾持片146，該兩° 持片I46勾持於勾持槽1U内。所述金屬殼體⑽的二 下部形成-缺π 147,該缺σ 147容置所述擔沿ιΐ3且金2 8 M340646 殼體140对应于该缺口 147的邊缘抵頂於擋沿113上。所 述底壁部143裁切出兩長條狀的抵頂片孔148和兩分別沿 抵頂片孔148延伸出的抵頂片149,抵頂片149的末端具有 一向金屬殼體140内侧彎折後再向外侧彎折形成的抵頂部 149 卜 ' 請參閱第五圖、第六圖和第七圖，所述插頭連接器2〇 • 包括一絕緣主體210、複數插頭端子220、一絕緣端體23〇 ' 和一金屬套體240。 所述絕緣主體210具有一大致呈長方體形的主體基部 211，主體基部211於上表面處開設有一凹槽2111，該凹槽 2111之底壁上凸出有一卡塊2112。主體基部211上開設有 前後延伸並貫穿該主體基部211的兩固定孔2113。主體基 部211的後端凸伸出一大致呈方形的套接部212和一圍於 套接部212兩側端和下侧的圍體部215,圍體部215與套接 邛212之間分別形成有一護套槽216。套接部212之前端面 _ 中部向後開設有一舌體插槽217。絕緣主體210上開設有複 數個插頭端子槽213，且插頭端子槽213延伸到舌體插槽 217之上槽壁或下槽壁而與舌體插槽217連通。 插頭端子220具有一大致呈長條狀的固持板221。固持 板221收容於絕緣主體21〇之插頭端子槽213内，且固持 板221上裁切出一矩形長條狀的彈抵部槽222和一由彈抵 部槽222 一端彎折延伸的彈抵部225。彈抵部225包括從彈 抵4槽222 —端處延伸並呈弧形的彈性部2251、由彈性部 9 M340646 2251末端延伸出的疊置於固持板221上的彈臂部2252，彈 臂部2252的末端背向固持板221彎折延伸後再朝向固持板 221彎折延伸形成一抵壓部2253。抵壓部2253伸入到舌體 插槽217内。固持板221之對應抵壓部2253末端處開設有 一避讓槽223,該避讓槽223在彈抵部225發生彈性變形時 可防止抵壓部2253的末端碰觸固持板221。固持板221的 一端延伸出矩形的焊尾部226,固持板221的另一端彎折延 伸出一連接部227，連接部227的中部具有一靠向彈臂部 2252 一侧並與固持板221平行的連接段2271 ;連接部227 收容於插頭端子槽213内。 所述絕緣端體230大致呈方形，抵靠於絕緣主體 的前表面上。絕緣端體230上開設有兩前後延伸並貫穿該 絕緣^體230的固接孔232和上、下兩排插頭端子尾孔 233。絕緣端體230之上表面處開設有一連通上排插頭端子 尾孔233的焊接槽231，同時絕緣端體23〇之下表面處開設 有一連通下排插頭端子尾孔233的焊接槽231，焊接槽231 同呀貝通至絕緣端體230的前表面。插頭端子22〇的焊尾 部226收容於插頭端子尾孔233内。 所述金屬套體240具有一大致呈長方筒狀的套接筒 241，該套接筒241的一端收容於護套槽216内。套接筒241 之上筒壁前侧緣向上彎折延伸後再向前彎折延伸形成一卡 片部242 ’該卡片部242上開設有一卡孔244 ;卡片部242 收容於絕緣主體21G之凹槽2111内，卡孔施收容並卡持 M340646 所述卡塊2112。金屬套體24〇之上筒壁開設有兩矩形的卡 持孔245。金屬套體240兩侧之筒壁的前邊緣分別向前延伸 出一長條狀的固接條246,固接條246的末端穿過絕緣主體 210的固疋孔2113和絕緣端體230的固接孔232。 當本創作插頭連接器20與插座連接器10插接時，舌 體部112插入舌體插槽217内，套接部212和套接筒241 的一部分插設於套接空間15〇内。插頭端子22〇之抵壓部 _ 2253彈性地抵頂於一第一插座端子12〇之接觸部125或一 第二插座端子130之接觸部135上。第一插座端子12〇之 抵接部124和第二插座端子13〇之抵接部134均彈性地抵 頂於一插頭端子220之連接段2271處。卡持部1451卡入 卡持孔245内，金屬殼體14〇之抵頂部1491彈性抵壓於金 屬套體240之套接筒241上。 如上所述，本創作藉由插頭端子22〇之抵壓部2253彈 性地抵頂於一第一插座端子120之接觸部125或一第二插 瞻座端子13〇之接觸部I35上，第一插座端子120之抵接部 124和第二插座端子130之抵接部134均彈性地抵頂於一插 頭端子220之連接段2271處，使第一插座端子12〇和第二 插座端子130皆與插頭端子22〇形成兩點彈性接觸，從而 接觸更加可靠，在受到衝擊和震動等因素影響時，可有效 避免出現連接瞬斷的問題。 【圖式簡單說明】 第一圖為本創作插座插頭連接器組合的立體圖。 M340646 第二圖為第一圖所示插座插頭連接器組合之插座連接 器的立體分解圖。 第三圖為第二圖所示插座連接器之金屬殼體的立體 圖。 第四圖為第二圖所示插座連接器的立體剖視圖。 第五圖為第一圖所示插座插頭連接器組合之插頭連接 ' 器的立體分解圖。 第六圖為第五圖所示插頭連接器之絕緣主體的立體 •圖。 第七圖為第五圖所示插頭連接器的立體剖視圖。 【主要元件符號說明】 插座連接器 10 絕緣本體 110 基部 111 舌體部 112 擋沿 113 勾持槽 114 第一插座端子槽 115 第二插座端子槽 116 第一插座端子 120 基板部 121 收容孔 122 彈臂 123 抵接部 124 接觸部 125 焊腳部 126 第二插座端子 130 基板部 131 收容孔 132 彈臂 133 抵接部 134 接觸部 135 焊腳部 136 金屬殼體 140 頂壁部 141 12 M340646The second socket terminal 130 has substantially the same shape and structure as the first socket terminal 120. The second socket terminal 130 has a substrate portion 131, a receiving hole 132, a spring arm 133, an abutting portion 134, a contact portion 135, and a solder leg portion 136. The portion 131 is housed in the second socket terminal groove 116. The second socket terminal 13 is different from the first socket terminal 120 in that the abutting portion 134 is formed by bending the end of the elastic arm 133 obliquely downward and then bending upward, and the abutting portion 134 extends out of the second socket. Outside the terminal slot 116. The metal casing 140 is fixed on the base ui of the insulative housing 11 and encloses a space 15 与 with the tongue portion 112 of the insulative housing 110. The metal casing 140 has a substantially rectangular tubular shape and has a top wall portion 14 and two side wall portions 142 and a bottom wall portion 143. The metal casing 140 is cut and formed by two parts: a side wall portion 142 extending to the top plate portion 141 of the holding piece hole 144 and two holding pieces 145 extending substantially along the holding piece hole 144, the end of the holding piece 145 The holder 1541 is formed by bending the inside of the metal case 14G and then bending it outward. The rear end of the top wall portion 141 is bent to extend two hooking pieces 146, and the two-degree holding piece I46 is hooked in the hooking groove 1U. The lower portion of the metal casing (10) forms a π 147, and the σ 147 accommodates the rim 3 and the gold 2 8 M340646. The casing 140 abuts against the edge of the notch 147 against the rim 113. The bottom wall portion 143 cuts two elongated abutting hole 148 and two abutting pieces 149 respectively extending along the abutting hole 148. The end of the abutting piece 149 has a curved inner side of the metal casing 140. The bottom portion 149 which is bent and folded outward is referred to as the fifth, sixth and seventh figures. The plug connector 2 includes an insulating body 210, a plurality of plug terminals 220, and an insulating end. The body 23〇' and a metal sleeve 240. The insulating body 210 has a body portion 211 having a substantially rectangular parallelepiped shape. The body base portion 211 defines a recess 2111 at a top surface thereof. A card block 2112 protrudes from a bottom wall of the recess 2111. The main body base 211 is provided with two fixing holes 2113 extending forward and backward and penetrating the main body base 211. The rear end of the main body base 211 protrudes from a substantially square sleeve portion 212 and a body portion 215 surrounding the two sides and the lower side of the socket portion 212. The body portion 215 and the socket portion 212 are respectively separated. A jacket groove 216 is formed. The front end portion _ of the socket portion 212 has a tongue groove 217 formed rearward. A plurality of plug terminal slots 213 are defined in the insulating body 210, and the plug terminal slots 213 extend to the slot wall or the lower slot wall above the tongue slot 217 to communicate with the tongue slot 217. The plug terminal 220 has a substantially elongated retaining plate 221. The holding plate 221 is received in the plug terminal slot 213 of the insulating body 21, and a rectangular strip-shaped elastic abutting groove 222 is cut out from the holding plate 221, and a spring is bent and extended by one end of the elastic abutting groove 222. Department 225. The elastic portion 225 includes an elastic portion 2251 extending from the end of the elastically-fitting 4 slot 222 and having an arc shape, and an elastic arm portion 2252 which is extended on the end of the elastic portion 9 M340646 2251 and is attached to the holding plate 221, and the elastic arm portion The end of the 2252 is bent away from the holding plate 221 and then bent and extended toward the holding plate 221 to form a pressing portion 2253. The abutting portion 2253 projects into the tongue slot 217. A relief groove 223 is formed at the end of the corresponding pressing portion 2253 of the holding plate 221, and the escape groove 223 prevents the end of the pressing portion 2253 from contacting the holding plate 221 when the elastic portion 225 is elastically deformed. One end of the holding plate 221 extends a rectangular solder tail portion 226, and the other end of the holding plate 221 is bent to extend a connecting portion 227. The middle portion of the connecting portion 227 has a side opposite to the elastic arm portion 2252 and is parallel to the holding plate 221 The connecting portion 2271; the connecting portion 227 is received in the plug terminal slot 213. The insulating end body 230 is substantially square and abuts against the front surface of the insulating body. The insulating end body 230 is provided with two fixing holes 232 extending forward and backward and extending through the insulating body 230, and upper and lower rows of plug terminal tail holes 233. A soldering groove 231 is formed in the upper surface of the insulating end body 230, and a soldering groove 231 is formed in the lower surface of the insulating end body 23, and a soldering groove 231 is formed in the lower surface of the insulating end body 23? The soldering groove 231 is connected to the front surface of the insulating end body 230. The solder tail portion 226 of the plug terminal 22A is received in the plug terminal tail hole 233. The metal sleeve 240 has a sleeve tube 241 having a substantially rectangular tube shape, and one end of the socket tube 241 is received in the sheath groove 216. The front side edge of the sleeve wall 241 is bent upwardly and then bent forward to form a card portion 242. The card portion 242 defines a card hole 244. The card portion 242 is received in the groove of the insulating body 21G. In 2111, the card hole receives and holds the card block 2112 of M340646. Two rectangular locking holes 245 are defined in the upper wall of the metal sleeve body 24 . The front edges of the cylinder walls on both sides of the metal sleeve body 240 respectively extend forwardly from a long strip-shaped fixing strip 246. The end of the fixing strip 246 passes through the fixing hole 2113 of the insulating body 210 and the insulating end body 230. Hole 232. When the present plug connector 20 is inserted into the receptacle connector 10, the tongue portion 112 is inserted into the tongue slot 217, and the socket portion 212 and a portion of the socket cartridge 241 are inserted into the socket space 15''. The pressing portion _ 2253 of the plug terminal 22 is elastically abutted against the contact portion 125 of the first socket terminal 12 or the contact portion 135 of the second socket terminal 130. The abutting portion 124 of the first socket terminal 12 and the abutting portion 134 of the second socket terminal 13 are elastically abutted against the connecting portion 2271 of the plug terminal 220. The retaining portion 1451 is snapped into the retaining hole 245, and the metal housing 14 is elastically pressed against the socket 241 of the metal sleeve 240 by the top portion 1491. As described above, the present invention is elastically abutted against the contact portion 125 of the first socket terminal 120 or the contact portion I35 of the second socket terminal 13A by the pressing portion 2253 of the plug terminal 22, first. The abutting portion 124 of the socket terminal 120 and the abutting portion 134 of the second socket terminal 130 are elastically abutted against the connecting portion 2271 of the plug terminal 220, so that the first socket terminal 12 and the second socket terminal 130 are both The plug terminal 22 〇 forms two points of elastic contact, so that the contact is more reliable, and when the impact is affected by shock and vibration, the connection short-circuit problem can be effectively avoided. [Simple description of the drawing] The first figure is a perspective view of the combination of the creative socket plug connector. M340646 The second figure is an exploded perspective view of the socket connector of the socket plug connector shown in the first figure. The third figure is a perspective view of the metal housing of the receptacle connector shown in the second figure. The fourth figure is a perspective cross-sectional view of the receptacle connector shown in the second figure. The fifth figure is an exploded perspective view of the plug connector of the socket plug connector assembly shown in the first figure. Figure 6 is a perspective view of the insulating body of the plug connector shown in Figure 5. Figure 7 is a perspective cross-sectional view of the plug connector shown in Figure 5. [Main component symbol description] Receptacle connector 10 Insulating body 110 Base portion 111 Tongue portion 112 Blocking edge 113 Hooking groove 114 First socket terminal slot 115 Second socket terminal slot 116 First socket terminal 120 Base plate portion 121 Housing hole 122 Projectile Arm 123 abutting portion 124 contact portion 125 soldering leg portion 126 second socket terminal 130 substrate portion 131 receiving hole 132 elastic arm 133 abutting portion 134 contact portion 135 soldering portion 136 metal housing 140 top wall portion 141 12 M340646
侧壁部 142 底壁部 143 卡持片孔 144 卡持片 145 卡持部 1451 勾持片 146 缺口 147 抵頂片孔 148 抵頂片 149 抵頂部 1491 套接空間 150 插頭連接器 20 絕鍊主體 210 主體基部 211 凹槽 2111 卡塊 2112 固定孔 2113 套接部 212 插頭端子槽 213 圍體部 215 護套槽 216 舌體插槽 217 插頭端子 220 固持板 221 彈抵部槽 222 避讓槽 223 彈抵部 225 彈性部 2251 彈臂部 2252 抵壓部 2253 焊尾部 226 連接部 227 連接段 2271 絕緣端體 230 焊接槽 231 固接孔 232 插頭端子尾孔 233 金屬套體 240 套接筒 241 卡片部 242 卡孔 244 卡持孔 245 固接條 246 13Side wall portion 142 bottom wall portion 143 gripping sheet hole 144 holding piece 145 holding portion 1451 hooking piece 146 notch 147 abutting top piece hole 148 abutting top piece 149 abutting top 1491 socket space 150 plug connector 20 chain main body 210 Main body base 211 Groove 2111 Block 2112 Fixing hole 2113 Socket part 212 Plug terminal groove 213 Peripheral part 215 Sheath groove 216 Tongue slot 217 Plug terminal 220 Holding plate 221 Abutment groove 222 Avoiding groove 223 225 elastic portion 2251 elastic arm portion 2252 pressing portion 2253 welding tail portion 226 connecting portion 227 connecting portion 2271 insulating end body 230 welding groove 231 fixing hole 232 plug terminal tail hole 233 metal sleeve 240 socket tube 241 card portion 242 card Hole 244 holding hole 245 fixing strip 246 13