M376928 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種電子器件連接器’更具體地涉及一種電 連接器。 【先前技術】 隨著電子產品的不斷發展，各種電子產品之間及其周邊 裝置之間的連接越來越頻繁，而電子產品與其周邊裝置之間 通過USB連接器來實現連接是一種很常見的連接方式，因此 USB連接器的使用頻率也隨之增加。USB連接器在電子領域 被如此廣泛的應用，用戶對其質量的要求也越來越高，為滿 足用戶對USB連接器質量的要求’各生產廠家紛紛從各方面 提高USB連接器的質量使其與外部連接器之間的連接更牢固 可靠。 第一圖和第二圖展示了現有技術中USB連接器的結構部 件。該USB連接器包括：金屬殼體100、複數導電端子120 及絕緣本體130。金屬殼體1〇〇由相對的上表面140、下表面 150及相對的兩側面160圍成’且在金屬殼體1〇〇的前端形成 有開口 141。兩側面160分別向外彎曲水平延伸形成焊接部 161，焊接部161與電路板11〇上的焊接觸點1〇1焊接，從而 使整個金屬殼體100固定在電路板110上。複數導電端子120 卡設於絕緣本體130上，絕緣本體130上設置有複數個與導 電端子120相對應的凹槽（圖未示），導電端子120均固定安 裝在凹槽内；絕緣本體130相對凹槽的另一表面内凹形成複 數個卡槽131，相應地，金屬殼體100的上表面140向内凸伸 形成複數個卡舌142，在安裝時’卡舌142卡入卡槽131内， 從而使導電端子120和絕緣本體130 一起固定於金屬殼體100 3 内。 體在使用過程中’當外部連接器通過開口 141插入金屬殼 唱内時，右操作者用力過大而使焊接觸點101上的銅 ^片又到較大的水平方向的作用力，則容易導致銅猪片鬆 ，如此多次使用將可能使銅箔片從電路板11〇上脫落；另 成，若操作者不慎向上扳動USB連接器時，則焊接部i6i將 又到較大的向上的牽引力，而可能把銅箔片從電路板110上 撕開，從而使焊接部161與電路板110之間的連接出現鬆動。 迷兩種情況使用時間過長都將使焊接部161與電路板之間 的連接不牛固，容易導致焊接部161與電路板之間接觸 不良而使USB連接器不能正常工作，同時也影響USB連接器 的使用壽命。 【新型内容】 本創作的目的在於針對上述現有技術的不足提供一種電 連接器，該電連接器可從多個方向增大與電路板結合的作用 以增強電連接器與電路板之間連接的牢固性延長電連接器 的使用壽命。 ° 為實現上述目的，本創作提供一種電連接器，該電連接器 L於焊接在電路板上，且包括：複數導電端子、收容固定複數 導電端子的絕緣本體及包覆絕緣本體和導電端子的金屬殼 體，金屬殼體前端形成開口，其中，金屬殼體的相對兩側面設 有向外彎折並水平延伸的第一焊接部，以與電路板表面安裝焊 接’金屬殼體的相對兩侧面還設有向下延伸的第二焊接部。 如上所述’本創作電連接器在焊接到電路板上時，由於兩 侧面分別向外彎折並水平延伸形成第二焊接部，使電連接器與 電路板之間增多了兩處焊接，從而使電連接器與電路板之間的 IS ] 4 ivu /0928 連接更加牢固；並且第二焊接部可焊接在電路板下表面的焊接 觸點上，從而可承受更大垂直於電路板方向的作用力，從而當 電連接器因操作不慎意外受到向上的作用力時，可防止銅箔片 從電路板上撕開，因此增強了電連接器與電路板之間的連接牢 固性，並且延長了電連接器的使用壽命。 【實施方式】 為詳細說明本創作的技術内容、構造特徵、所實現目的 及效果’以下結合實施方式並配合附圖詳予說明。 請參閱第三圖至第五圖，本創作電連接器適於固定焊接 在電路板210上，該電連接器包括：金屬殼體2〇〇、複數導電 端子220及絕緣本體230;導電端子220固定卡設於絕緣本體 230上，絕緣本體230固定安裝在金屬殼體200内。 該金屬殼體200由相對的上表面240、下表面250及相對 的兩側面260圍成，且金屬殼體200的前端形成一開口 241。 兩側面260分別向外彎折水平延伸形成兩個第一焊接部 261，並且第一焊接部261與電路板板上表面211的焊接觸點 2〇1焊接；另外，兩侧面260分別沿鄰近下表面250向下延伸 ^成第—焊接部262，每側面260上的第二焊接部262均位於 兩個第一焊接部261之間；第二焊接部260外側面設有凸肋 262a，凸肋262a緊靠於電路板上表面211和電路板下表面 212之間的焊接觸點2〇3,當第二焊接部262與電路板下表面 212的焊接觸點202焊接時，凸肋262a焊接在電路板21〇的 焊接觸點203上。上表面240的後端向後彎折延伸形成第三 焊接部244’並且第三焊接部244焊接在電路板上表面211的 焊接觸點201上。第一焊接部26卜第二焊接部262及第三焊 接部244均固定焊接在電路板21〇的相應焊接觸點上，從而 5 M376928 將電連接器固定安裝在電路板210上《其中，第一焊接部261 與第三焊接部244均大致位於電連接器一半高度的位置處， 如此設計不僅可將電連接器快速地焊接在電路板210上，而 且使電連接器關於電路板210上下對稱，從而可上下平衡電 連接器對電路板的壓力。 另外’上表面240、下表面250及兩側面260的前端分別 向外彎曲延伸形成第一導向部243、第二導向部251及第三導 向部263 ’且第一導向部243、第二導向部251與第三導向部 263 —起引導外部連接器通過開口 241插入金屬殼體200内， 實現外部連接器與電連接器導電端子220的電連接》 該絕緣本體230向外水平延伸形成一端子板231，端子板 231上設置有複數個前後貫穿端子板231的凹槽232,導電端 子220插設於凹槽232内；端子板231末端的凹槽232内開 設有上下貫穿該端子板231的通孔233,相應地複數個導電端 子220的末端斜向下彎折形成一固定部221，通孔233收容固 定部221 ’從而將導電端子220固定在凹槽232内；絕緣本體 230相對凹槽232的另一表面内凹形成三個卡槽234，相應地 金屬殼體200的上表面240向内凸伸形成三個卡舌242，卡舌 242與卡槽234配合卡接，從而將絕緣本體23〇固定在金屬殼 體200内。 下面參考第四圖和第五圖描述本創作電連接器的組裝過 程。首先，將導電端子220插入端子板231的凹槽232内， 並使導電端子220末端的固定部221收容在通孔233内，從 而將導電端子220固定安裝在絕緣本體23〇上。然後，將絕 緣本體230插入金屬殼體2〇〇内，向下按壓上表面24〇上的 卡舌242 ’使卡舌242下壓卡入絕緣本體230的卡槽234内， 從而使絕緣本體230固定在金屬殼體2〇〇内。最後，將金屬 [S ] 6 M376928 设體200焊接在電路板210上’具體地：先將金屬殼體200 放置於電路板210上並使各焊接部貼近各對應的焊接觸點； 再分別將第一焊接部261和第二焊接部244焊接在電路板上 表面211的焊接觸點201上；最後將第二焊接部262焊接在 電路板下表面212的焊接觸點202上，同時第二焊接部262 上的凸肋262a也被焊接在電路板210的焊接觸點2〇3上。至 此，整個電連接器組裝完畢，可正常使用電連接器，即可在 第一導向部243、第二導向部251與第三導向部263的共同引 導下將外部連接器通過開口 241插入電連接器的金屬殼體 2〇〇内，從而實現外部連接器和電連接器的連接。 如上所述，本創作電連接器的第二焊接部262的凸肋262a 焊接在電路板210的焊接觸點203上（垂直於電路板210，見 第四圖）’而且第二焊接部262焊接在電路板下表面212上的 焊接觸點202上，即第二焊接部262和凸肋262a通過焊接在 垂直和水平兩方向與電路板210固定連接，因此當外部連接 器通過開口 241插入電連接器的金屬殼體2〇〇内時，可以同 時在水平方向和垂直方向減小焊接觸點銅箔片相對電路板 210的作用力，從而大大減小了焊接觸點銅箔片因鬆動而從電 路板板210上脫落的可能性，增強了電連接器與電路板21〇 之間的連接牢固程度’從而延長了電連接器的使用壽命。 【圖式簡單說明】 第一圖為先前技術的電連接器的立體結構示意圖。 第二圖為第一圖所示電連接器的立體分解圖。 第三圖為本創作電連接器一種實施例的立體結構示意圖。 第四圖為第三圖所示電連接器的分解圖。 第五圖為第三圖所示電連接器的另一角度分解圖。 7 M376928 【主要元件符號說明】 金屬殼體 200 電路板 210 焊接觸點 201 ' 202 ' 203 電路板上表面 211 電路板下表面 212 導電端子 220 固定部 221 絕緣本體 230 端子板 231 凹槽 232 通孔 233 卡槽 234 上表面 240 開口 241 卡舌 242 第一導向部 243 第三焊接部 244 下表面 250 第二導向部 251 側面 260 第一焊接部 261 第二焊接部 262 凸肋 262a 第三導向部 263M376928 V. New description: [Technical field to which the novel technology belongs] The present invention relates to an electronic device connector' more specifically to an electrical connector. [Prior Art] With the continuous development of electronic products, the connection between various electronic products and their peripheral devices is more and more frequent, and it is common to connect the electronic products with their peripheral devices through a USB connector. The connection method, so the frequency of use of the USB connector also increases. USB connectors are widely used in the field of electronics, and users have higher and higher requirements for their quality. In order to meet the requirements of users for the quality of USB connectors, manufacturers have improved the quality of USB connectors from various aspects. The connection to the external connector is more secure and reliable. The first and second figures show the structural components of the prior art USB connector. The USB connector includes a metal housing 100, a plurality of conductive terminals 120, and an insulative housing 130. The metal casing 1 is surrounded by the opposite upper surface 140, the lower surface 150, and the opposite side surfaces 160, and an opening 141 is formed at the front end of the metal casing 1〇〇. The two side faces 160 are outwardly bent outwardly to form a welded portion 161, and the welded portion 161 is welded to the soldering contact 1〇1 on the circuit board 11A, thereby fixing the entire metal case 100 to the circuit board 110. The plurality of conductive terminals 120 are disposed on the insulative housing 130. The insulative housing 130 is provided with a plurality of recesses (not shown) corresponding to the conductive terminals 120. The conductive terminals 120 are fixedly mounted in the recesses; The other surface of the recess is recessed to form a plurality of card slots 131. Accordingly, the upper surface 140 of the metal housing 100 protrudes inwardly to form a plurality of tabs 142. During installation, the tabs 142 are inserted into the slots 131. Therefore, the conductive terminal 120 and the insulative housing 130 are fixed together in the metal housing 100 3 . When the body is inserted into the metal shell sing through the opening 141 during use, the right operator exerts too much force to cause the copper piece on the soldering contact 101 to move to a larger horizontal direction, which is easy to cause The copper pig piece is loose. If it is used many times, the copper foil piece may be detached from the circuit board 11; otherwise, if the operator accidentally pulls the USB connector upward, the welding part i6i will go up again. The traction force may tear the copper foil from the circuit board 110, thereby loosening the connection between the soldering portion 161 and the circuit board 110. In the past two cases, the connection between the soldering portion 161 and the circuit board is not strong, and the contact between the soldering portion 161 and the circuit board is liable to cause the USB connector to malfunction, and also affects the USB. The life of the connector. [New Content] The purpose of the present invention is to provide an electrical connector that can increase the function of combining with a circuit board from multiple directions to enhance the connection between the electrical connector and the circuit board in view of the above-mentioned deficiencies of the prior art. Robustness extends the life of the electrical connector. In order to achieve the above object, the present invention provides an electrical connector, which is soldered on a circuit board, and includes: a plurality of conductive terminals, an insulating body for receiving a plurality of conductive terminals, and a covered insulating body and a conductive terminal. a metal casing, the front end of the metal casing is formed with an opening, wherein the opposite sides of the metal casing are provided with a first welded portion which is bent outward and horizontally extends to weld the opposite sides of the metal casing to the surface of the circuit board. There is also a second weld extending downward. As described above, when the electronic connector is soldered to the circuit board, since the two sides are respectively bent outward and horizontally extended to form the second soldering portion, two solderings are added between the electrical connector and the circuit board, thereby The IS ] 4 ivu /0928 connection between the electrical connector and the board is more secure; and the second solder can be soldered to the solder contacts on the lower surface of the board to withstand a greater vertical direction of the board Force, so that when the electrical connector is accidentally subjected to an upward force due to accidental operation, the copper foil can be prevented from being torn off from the circuit board, thereby enhancing the connection stability between the electrical connector and the circuit board, and extending the length The life of the electrical connector. [Embodiment] The technical contents, structural features, objects and effects achieved by the present invention will be described in detail below with reference to the embodiments and the accompanying drawings. Referring to the third to fifth figures, the present electrical connector is adapted to be fixedly soldered to the circuit board 210. The electrical connector includes: a metal case 2, a plurality of conductive terminals 220 and an insulative body 230; and a conductive terminal 220 The fixing body is fixed on the insulative housing 230 , and the insulative housing 230 is fixedly mounted in the metal housing 200 . The metal casing 200 is surrounded by the opposite upper surface 240, the lower surface 250, and the opposite side surfaces 260, and an opening 241 is formed at the front end of the metal casing 200. The two side surfaces 260 are respectively bent outwardly to form two first soldering portions 261, and the first soldering portion 261 is soldered to the soldering contact 2〇1 of the board surface 211; in addition, the two side surfaces 260 are respectively adjacent to each other. The surface 250 extends downwardly into a first soldering portion 262, and the second soldering portion 262 on each side surface 260 is located between the two first soldering portions 261; the second soldering portion 260 is provided with convex ribs 262a on the outer side surface thereof. 262a abuts the soldering contact 2〇3 between the board surface 211 and the lower surface 212 of the board. When the second soldering portion 262 is soldered to the solder contact 202 of the lower surface 212 of the board, the rib 262a is soldered. The circuit board 21 is soldered to the contact 203. The rear end of the upper surface 240 is bent back to form a third welded portion 244' and the third welded portion 244 is welded to the solder contact 201 of the board upper surface 211. The first soldering portion 26, the second soldering portion 262 and the third soldering portion 244 are both fixedly soldered to the corresponding soldering contacts of the circuit board 21, so that the 5 M376928 fixedly mounts the electrical connector on the circuit board 210. A soldering portion 261 and a third soldering portion 244 are both located substantially at half the height of the electrical connector, so that not only the electrical connector can be quickly soldered to the circuit board 210, but also the electrical connector is vertically symmetrical about the circuit board 210. Therefore, the pressure of the electrical connector on the circuit board can be balanced up and down. In addition, the front end 240, the lower surface 250, and the front ends of the two side surfaces 260 are respectively bent outward to form a first guiding portion 243, a second guiding portion 251, and a third guiding portion 263', and the first guiding portion 243 and the second guiding portion 251 and the third guiding portion 263 together guide the external connector into the metal housing 200 through the opening 241 to realize electrical connection between the external connector and the electrical connector conductive terminal 220. The insulating body 230 extends horizontally outward to form a terminal board. 231, the terminal plate 231 is provided with a plurality of recesses 232 extending through the terminal plate 231. The conductive terminals 220 are inserted into the recesses 232. The recesses 232 at the ends of the terminal strips 231 are provided with through and through the terminal strips 231. The hole 233, correspondingly the end of the plurality of conductive terminals 220 is bent obliquely downward to form a fixing portion 221, the through hole 233 receives the fixing portion 221' to fix the conductive terminal 220 in the groove 232; the insulating body 230 is opposite to the groove 232 The other surface is recessed to form three latching slots 234. Accordingly, the upper surface 240 of the metal housing 200 protrudes inwardly to form three tabs 242. The tabs 242 are engaged with the latching slots 234 to thereby insulate the insulative housing 23. 〇 fixed in Genus inner housing 200. The assembly process of the present electrical connector will be described below with reference to the fourth and fifth figures. First, the conductive terminal 220 is inserted into the recess 232 of the terminal block 231, and the fixing portion 221 at the end of the conductive terminal 220 is received in the through hole 233, so that the conductive terminal 220 is fixedly mounted on the insulating body 23A. Then, the insulative housing 230 is inserted into the metal housing 2, and the tab 242' on the upper surface 24 is pressed downward to press the tab 242 into the slot 234 of the insulative housing 230, thereby making the insulative housing 230 It is fixed in the metal casing 2〇〇. Finally, the metal [S] 6 M376928 body 200 is soldered to the circuit board 210. Specifically, the metal case 200 is first placed on the circuit board 210 and the solder joints are placed close to the corresponding solder contacts; The first soldering portion 261 and the second soldering portion 244 are soldered to the soldering contact 201 of the circuit board surface 211; finally, the second soldering portion 262 is soldered to the soldering contact 202 of the lower surface 212 of the circuit board while the second soldering The rib 262a on the portion 262 is also soldered to the solder contact 2〇3 of the circuit board 210. At this point, the entire electrical connector is assembled, and the electrical connector can be normally used, that is, the external connector can be electrically connected through the opening 241 under the common guidance of the first guiding portion 243, the second guiding portion 251 and the third guiding portion 263. The metal housing 2 of the device is connected to realize the connection of the external connector and the electrical connector. As described above, the rib 262a of the second solder portion 262 of the present electrical connector is soldered to the solder contact 203 of the circuit board 210 (perpendicular to the circuit board 210, see FIG. 4) and the second solder portion 262 is soldered. The solder contacts 202 on the lower surface 212 of the board, that is, the second solder portion 262 and the rib 262a are fixedly connected to the circuit board 210 by soldering in both vertical and horizontal directions, so that the external connector is inserted into the electrical connection through the opening 241. When the metal casing 2 of the device is inside, the force of the soldering contact copper foil relative to the circuit board 210 can be reduced in the horizontal direction and the vertical direction at the same time, thereby greatly reducing the soldering contact copper foil from loosening. The possibility of detachment on the circuit board 210 enhances the connection between the electrical connector and the circuit board 21A, thereby extending the life of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic perspective view of a prior art electrical connector. The second figure is an exploded perspective view of the electrical connector shown in the first figure. The third figure is a schematic perspective view of an embodiment of the creative electrical connector. The fourth figure is an exploded view of the electrical connector shown in the third figure. The fifth figure is another angular exploded view of the electrical connector shown in the third figure. 7 M376928 [Description of main components] Metal housing 200 Circuit board 210 Soldering contacts 201 ' 202 ' 203 Circuit board surface 211 Circuit board lower surface 212 Conductive terminal 220 Fixing part 221 Insulating body 230 Terminal board 231 Groove 232 Through hole 233 card slot 234 upper surface 240 opening 241 tab 242 first guide portion 243 third solder portion 244 lower surface 250 second guide portion 251 side surface 260 first solder portion 261 second solder portion 262 rib 262a third guide portion 263