M399479 五、新型說明： 【新型所屬之技術領域】 本創作是有關於一種連接器，特別是有關於一種可 防止電磁波干擾並且具有卡扣機構的連接器。 【先前技術】 按，連接器係一種以電氣方式連接電線、電路板和 其他電路元件的連接裝置。因此，廣泛地運用於吾人 生活周遭之各種電子產品，例如筆記本型電腦、手機 以及個人數位助理器（PDA)等。 一般的連接器係焊固於電路板上，俾利用其連接端 子與電路板上經電路佈局之接觸端接觸，以形成電氣 連接，然而在某些運用上，連接器係作為固定另一電 路元件，例如固定軟性排線的用途。因此，連接器係 介於軟性排線及印刷電路板之間，俾作為電氣訊號之 轉接。 一般傳統用來固定軟性排線之連接器，其結構主要 包括有絕緣本體、複數導電端子以及上蓋，上蓋可相 對於絕緣本體旋轉移動而產生開啟與閉合的狀態，當 上蓋開啟時，可將軟性排線插入於絕緣本體中，當上 蓋閉合時，可將軟性排線電性搭接於導電端子上並且 固定於絕緣本體内。 M399479 然而，此種用.來固定軟性排線之連接器由於沒有設 置其他的輔助.結構來減少電磁波的干擾（EMI)，所以 連接器中所傳遞之電氣訊號很容易受到外界環境的影 響而導致雜訊過大，進而影響電氣訊號的傳遞，導致 產生客訴的問題。 【新型内容】 習知連接器之結構對於防止電磁波干擾的成效不 佳，導致連接器之電氣訊號很容易受到外界電磁波干 擾的影響，使得電氣訊號的傳遞效果變差，進而導致 產生客訴的問題。 本創作提供一種連接器，包括絕緣本體、複數導電 端子以及金屬殼體，其中絕緣本體具有一容置空間以 及設於容置空間之複數個端子插槽。複數導電端子安 裝於該些端子插槽中，金屬殼體組裝於絕緣本體上， 其中金屬殼體設有至少一止退機構以及一解鎖單元， 止退機構位於容置空間内，解鎖單元可抵壓止退機構 以使止退機構彈性變形並產生位置偏移，止退機構包 括一止退彈片以及一連動彈片，解鎖單元包括用於抵 壓連動彈片之一抵壓部以及提供給手指施力按壓之一 操作部。 本創作所提供連接器，其係在絕緣本體上覆蓋一金 屬殼體，此金屬殼體之上接地彈片或下接地彈片可達 到緊密搭接於軟性傳輸單元上之導電部的目的，之後M399479 V. New description: [New technical field] This creation is about a connector, especially a connector that can prevent electromagnetic interference and has a snap mechanism. [Prior Art] A connector is a connection device that electrically connects wires, boards, and other circuit components. Therefore, it is widely used in various electronic products around our lives, such as notebook computers, mobile phones, and personal digital assistants (PDAs). A typical connector is soldered to a circuit board, and its connection terminal is in contact with a contact end of the circuit board through the circuit layout to form an electrical connection. However, in some applications, the connector is used to fix another circuit component. For example, the purpose of fixing a flexible cable. Therefore, the connector is placed between the flexible cable and the printed circuit board, and is used as a relay for electrical signals. Generally, the connector for fixing a flexible cable generally comprises an insulating body, a plurality of conductive terminals and an upper cover. The upper cover can be rotated and moved relative to the insulating body to open and close, and when the upper cover is opened, the softness can be The cable is inserted into the insulative housing. When the upper cover is closed, the flexible cable can be electrically connected to the conductive terminal and fixed in the insulating body. M399479 However, such a connector for fixing a flexible cable is not provided with other auxiliary structures to reduce electromagnetic interference (EMI), so the electrical signal transmitted in the connector is easily affected by the external environment. The noise is too large, which in turn affects the transmission of electrical signals, resulting in customer complaints. [New content] The structure of the conventional connector is not effective in preventing electromagnetic interference, which causes the electrical signal of the connector to be easily affected by external electromagnetic interference, which makes the transmission effect of the electrical signal worse, which leads to the problem of customer complaints. . The present invention provides a connector comprising an insulative housing, a plurality of conductive terminals, and a metal housing, wherein the insulative housing has an accommodation space and a plurality of terminal slots disposed in the accommodation space. A plurality of conductive terminals are mounted in the terminal slots, and the metal casing is assembled on the insulative housing. The metal casing is provided with at least one stop mechanism and an unlocking unit. The anti-return mechanism is located in the receiving space, and the unlocking unit can be abutted. Pressing and stopping mechanism to elastically deform and generate positional deviation of the stopping mechanism, the stopping mechanism includes a retracting elastic piece and a linkage elastic piece, and the unlocking unit includes a pressing portion for pressing the interlocking elastic piece and providing a force to the finger Press one of the operating parts. The connector provided by the present invention is covered with a metal shell on the insulating body, and the grounding elastic piece or the lower grounding elastic piece on the metal housing can reach the purpose of closely bonding the conductive portion on the flexible transmission unit, and then
[s I 4 M399479 再透過此金屬殼韙之接地部接地，如此可達成防止外 界電磁波干擾的效果，以解決習知連接器容易受到外 界電磁波干擾而導致客訴的問題。另外，此金屬殼體 上還設有止退機構以及解鎖單元，可用來取代習知連 接器之上蓋來達到卡扣固定軟性傳輸單元的目的。 【實施方式】 請參照第一圖至第七圖，本創作提供一種連接器， • 此連接器1包含絕緣本體2、複數導電端子4、金屬殼 體5以及軟性傳輸單元6，其中絕緣本體2具有一容 置空間20以及設於容置空間20之複數個端子插槽 26，複數導電端子4安裝於該些端子插槽26中。金屬 殼體5組裝於絕緣本體2上，其中金屬殼體5設有止 退機構56以及解鎖單元58，止退機構56位於容置空 間20内，解鎖單元58可選擇性地去抵壓止退機構56 以使止退機構56彈性變形並產生位置偏移。 ⑩ 在本實施例中，絕緣本體2包括一上壁21、一下 壁22、前壁23、一左壁24以及一右壁25，前壁23、 左壁24與右壁25設置於下壁22與上壁21之間以形 成容置空間20。金屬殼體5包括一上殼51、一下殼 52以及連接上殼51與下殼52之一左殼54與一右殼 55，上殼51覆蓋於上壁21上，下殼52覆蓋於下壁 22上，左殼54覆蓋於左壁24上，右殼55覆蓋於右 壁25上，解鎖單元58連接於鄰近容置空間20之開口 f si 5 M399479 200的上殼51 JL向著前壁23的上方彎折延伸至上殼 51之上方，如此設計可避免金屬殼體5在組裝時會干 涉於絕緣本體2或是會阻擋於容置空間20之開口 200，並且還可增加解鎖單元58操作時的方便性。 在本實施例中，止退機構56包括一位於容置空間 20内之一止退彈片562以及延伸出於絕緣本體2外之 一連動彈片564,解鎖單元58包括用於抵壓連動彈片 564之一抵壓部582以及提供給手指施力按壓之一操 # 作部584。止退機構56連接於鄰近容置空間20之開 口 200的下殼52且向著前壁23的方向彎折延伸至容 置空間20内。解鎖單元58上設有三個第一彎折部586 以及一第二彎折部588，第一彎折部586連接操作部 584以及上殼51，第二彎折部588連接操作部584以 及抵壓部582。操作部584上設有複數個彈片580可 用以抵壓於上殼51上，且該些彈片580係與第一彎折 部586受手指按壓力後反彈的方向相同，此些彈片580 ^ 係作為加強辅助第一彎折部586之彈性回復力之用。 操作部584向著前壁23的上方傾斜延伸至上殼51之 上方，以與上殼51之間形成一下壓行程空間510，抵 壓部582係位於連動彈片564之正上方且實質垂直於 連動彈片564。 導電端子4之一端具有一接觸端42，導電端子4 之另一端具有一焊接端44，接觸端42位於容置空間 20内，焊接端44延伸凸出於絕緣本體2外。在本實 6 M399479 施例中，位於容單空間20中之導電端子4的接觸端 42係與軟性傳輸單元6電性連接，凸出於絕緣本體2 外之導電端子4的焊接端44係與電路板（未繪示）焊 接固定，其中接觸端42包括一上接觸臂422以及一下 接觸臂424，上接觸臂422與下接觸臂424係上下相 對設置，如此不管軟性傳輸單元6之導體接點66的方 向朝上或朝下，皆可順利與接觸端42電性搭接導通， 藉以配合客戶的需求變更導體接點66的方向。 • 軟性傳輸單元6插入於容置空間20内，其中軟性 傳輸單元6設有一缺口 64，缺口 64係可卡合於止退 機構56，藉以將軟性傳輸單元6固定於絕緣本體2。 在本實施例中，止退彈片562係為一向上凸起之卡合 部，其中向上凸起之卡合部之一側係為斜面，另一側 則為垂直面的金屬彈片結構，如此設計可利於卡合於 軟性傳輸單元6之缺口 64並避免卡合後鬆脫的問題。 由於容置空間20的開口 200大小係實質等於或約略大 ^ 於軟性傳輸單元6的截面積大小，絕緣本體2之容置 空間20的開口 200兩側各設有一凹槽202,此凹槽202 設置於下壁22上且貫穿於前壁23,止退機構56透過 解鎖單元58的施力作用後可從容置空間20彈性變形 移動至凹槽202中，如此缺口 64不再卡合於止退機構 56，而軟性傳輸單元6則可脫離於絕緣本體2。 此外，在本實施例中，金屬殼體5沿著絕緣本體2 之容置空間20的開口 200兩側各設有一上接地彈片[s I 4 M399479 is grounded through the grounding part of this metal case, so that the effect of preventing external electromagnetic wave interference can be achieved to solve the problem that the conventional connector is susceptible to external electromagnetic wave interference. In addition, the metal housing is provided with a stop mechanism and an unlocking unit, which can be used to replace the upper cover of the conventional connector to achieve the purpose of fastening the flexible transmission unit. [Embodiment] Please refer to the first to seventh figures. The present invention provides a connector. The connector 1 includes an insulative housing 2, a plurality of conductive terminals 4, a metal housing 5, and a flexible transmission unit 6, wherein the insulative housing 2 The plurality of terminal slots 26 are disposed in the accommodating space 20, and the plurality of conductive terminals 4 are mounted in the terminal slots 26. The metal housing 5 is assembled on the insulative housing 2, wherein the metal housing 5 is provided with a retreating mechanism 56 and an unlocking unit 58. The anti-return mechanism 56 is located in the accommodating space 20, and the unlocking unit 58 can selectively press and hold back. Mechanism 56 causes the detent mechanism 56 to elastically deform and create a positional offset. In this embodiment, the insulative housing 2 includes an upper wall 21, a lower wall 22, a front wall 23, a left wall 24, and a right wall 25. The front wall 23, the left wall 24, and the right wall 25 are disposed on the lower wall 22. An accommodation space 20 is formed between the upper wall 21 and the upper wall 21 . The metal casing 5 includes an upper casing 51, a lower casing 52, and a left casing 54 and a right casing 55 connecting the upper casing 51 and the lower casing 52. The upper casing 51 covers the upper wall 21, and the lower casing 52 covers the lower wall. 22, the left casing 54 covers the left wall 24, the right casing 55 covers the right wall 25, and the unlocking unit 58 is connected to the upper casing 51 JL of the opening fsi 5 M399479 200 adjacent to the accommodating space 20 toward the front wall 23. The upper bending portion extends above the upper casing 51. The design prevents the metal casing 5 from interfering with the insulating body 2 during assembly or blocking the opening 200 of the accommodating space 20, and can also increase the operation of the unlocking unit 58. Convenience. In this embodiment, the anti-backup mechanism 56 includes a retracting elastic piece 562 located in the accommodating space 20 and an interlocking elastic piece 564 extending from the outer side of the insulating body 2, and the unlocking unit 58 includes a pressing elastic 564 for resisting the interlocking elastic piece 564. A pressing portion 582 and a biasing portion 584 for biasing the finger are provided. The retaining mechanism 56 is coupled to the lower casing 52 of the opening 200 adjacent to the accommodating space 20 and is bent and extends into the accommodating space 20 in the direction of the front wall 23. The unlocking unit 58 is provided with three first bending portions 586 and a second bending portion 588. The first bending portion 586 connects the operating portion 584 and the upper casing 51, and the second bending portion 588 connects the operating portion 584 and the pressing portion. Department 582. The operating portion 584 is provided with a plurality of elastic pieces 580 for pressing against the upper casing 51, and the elastic pieces 580 are in the same direction as the first bending portion 586 is rebounded by the finger pressing force, and the elastic pieces 580 are used as The elastic restoring force of the auxiliary first bending portion 586 is reinforced. The operating portion 584 extends obliquely upwardly above the front wall 23 to the upper portion of the upper casing 51 to form a lower pressing stroke space 510 with the upper casing 51. The pressing portion 582 is located directly above the interlocking elastic piece 564 and substantially perpendicular to the interlocking elastic piece 564. . One end of the conductive terminal 4 has a contact end 42. The other end of the conductive terminal 4 has a soldering end 44. The contact end 42 is located in the accommodating space 20, and the soldering end 44 extends outwardly from the insulating body 2. In the embodiment of the present invention, the contact end 42 of the conductive terminal 4 located in the capacitor space 20 is electrically connected to the flexible transmission unit 6, and the soldering end 44 of the conductive terminal 4 protruding from the insulating body 2 is The circuit board (not shown) is soldered and fixed, wherein the contact end 42 includes an upper contact arm 422 and a lower contact arm 424. The upper contact arm 422 and the lower contact arm 424 are disposed above and below each other, so that the conductor contact of the flexible transmission unit 6 is not concerned. The direction of the 66 is upward or downward, and the contact end 42 can be electrically connected to the contact end 42 to change the direction of the conductor contact 66 to meet the needs of the customer. The flexible transmission unit 6 is inserted into the accommodating space 20, wherein the flexible transmission unit 6 is provided with a notch 64, and the notch 64 is engageable with the retreating mechanism 56, whereby the flexible transmission unit 6 is fixed to the insulative housing 2. In this embodiment, the retracting elastic piece 562 is an upwardly convex engaging portion, wherein one side of the upwardly convex engaging portion is a sloped surface, and the other side is a vertical metal elastic structure. It can facilitate the problem of being engaged with the notch 64 of the flexible transmission unit 6 and avoiding looseness after the engagement. The recess 202 of the accommodating space 20 of the accommodating body 20 is provided with a recess 202 on each side of the opening 200 of the accommodating space 20 of the accommodating space 20, and the recess 202 is substantially equal to or slightly larger than the cross-sectional area of the flexible transmission unit 6. The recessed mechanism 56 is elastically deformed from the accommodating space 20 into the recess 202 by the urging force of the unlocking unit 58 so that the notch 64 is no longer engaged with the stagnation. The mechanism 56, while the flexible transmission unit 6 can be detached from the insulative housing 2. In addition, in the present embodiment, the metal housing 5 is provided with an upper grounding elastic piece on both sides of the opening 200 of the accommodating space 20 of the insulative housing 2
1' SI 7 M399479 57以及一下接地彈片59，上接地彈片57與下接地彈 片59係自容置空間20的開口 200向著容置空間20内 部彎折延伸且上下相對設置，其中上接地彈片57與下 接地彈片59之間的間距大小從容置空間20的開口 200 處往容置空間20的内部逐漸變小，以形成具有外擴内 縮之斜面或是弧面的彈片結構，如此可利於將軟性傳 輸單元6插入於容置空間20内，且軟性傳輸單元6之 一側設有一導電部62，導電部62係可用以與上接地 • 彈片57電性搭接之用，然不限於此，另一種選擇是， 軟性傳輸單元6之另一側設有導電部62，導電部62 係可與下接地彈片59電性搭接，又或者是軟性傳輸單 元6之兩側皆設有導電部62，導電部62係可同時與 上接地彈片57以及下接地彈片59電性搭接。絕緣本 體2之容置空間20的開口 200兩側各設有一上嵌槽 204與一下嵌槽2065上嵌槽204與下嵌槽206係配合 於上接地彈片57以及下接地彈片59的彈片形狀而形 成具有外擴内縮之斜面或是弧面的嵌槽結構。由於接 地彈片57或下接地彈片59係可緊密搭接於導電部62 上，之後再將金屬殼體5上之複數接地部53加以接 地，如此即可達到連接器1之防止電磁波干擾的目的。 在本實施例中，止退機構56鄰近於容置空間20的 兩側且位於該些導電端子4與下接地彈片59之間，缺 口 64鄰近於軟性傳輸單元6的兩側且位於軟性傳輸單 元6之導電接點66與導電部62之間，然不限於此， i si 8 M399479 亦可將止退機構.56與下接地彈片59之間的位置互 換，將缺口 64與導電部62之間的位置互換，皆可達 到本創作所要達到之卡合固定與防止電磁波干擾的效 果。此外，金屬殼體5上所設置之止退機構56、解鎖 單元58、上接地彈片57以及下接地彈片59係為金屬 一體成形之結構，且止退機構56、解鎖單元58、上接 地彈片57以及下接地彈片59的彎折延伸的形狀結構 有利於將金屬殼體5組裝固定於絕緣本體2上。 參 軟性傳輸單元6面對於上接地彈片57設有一導電 部62，導電部62係與上接地彈片57搭接，軟性傳輸 單元6面對於導電端子4之接觸端42設有複數導體接 點66，該些導體接點66係與接觸端42搭接。在本實 施例中，此軟性傳輸單元6係為軟性排線（FFC )，此 導電部62係為鋁箔，然不限於此，軟性傳輸單元6亦 可為軟性印刷電路板（FPC)，此導電部62亦可為銀 膠塗層。此外，該軟性傳輸單元6之導電部62與導體 ® 接點66係分別位於軟性傳輸單元6之上下兩側。 綜上所述，本創作之連接器其係在絕緣本體上覆蓋 有一金屬殼體，利用此金屬殼體之上接地彈片與下接 地彈片可緊密搭接於軟性傳輸單元上之導電部的特 性，之後再透過此金屬殼體之接地部接地，如此可達 成防止外界電磁波干擾的效果，以解決習知連接器容 易受到外界電磁波干擾而導致客訴的問題。另外，此 金屬殼體上還設有一體成形之止退機構以及解鎖單 m 9 M399479 元，可用來取代.習知連接器之上蓋來達到卡扣固定軟 性傳輸單元的目的。 上述詳細說明為針對本創作一種較佳之可行實施 例說明而已，惟該實施例並非用以限定本創作之申請 專利範圍，凡其它未脫離本創作所揭示之技藝精神下 所完成之均等變化與修飾變更，均應包含於本創作所 涵蓋之專利範圍中。 【圖式簡單說明】 第一圖係本創作之連接器組合軟性傳輸單元的立體示意圖。 第二圖係本創作之連接器尚未組合軟性傳輸單元的立體示意 圖。 第三圖係第二圖中之連接器的立體分解示意圖。 第四圖係第三圖中之金屬殼體的部份放大示意圖。 第五圖係第三圖中之絕緣本體的部份放大示意圖。 第六圖係第一圖中之連接器沿A A線段的剖面示意圖。 第七圖係第一圖中之連接器沿BB線段的剖面示意圖。 【主要元件符號說明】 1 連接器 2 絕緣本體 20 容置空間 200 開口 202凹槽 i si M399479 上嵌槽 下嵌槽. 上壁 下壁 前壁 左壁 右壁 端子插槽 導電端子 接觸端 上接觸臂 下接觸臂 焊接端 金屬殼體 上殼 下壓行程空間 下殼 接地部 左殼 右殼 止退機構 止退彈片 連動彈片 上接地彈片 M399479 解鎖單元. 彈片 抵壓部 操作部 第一彎折部 第二彎折部 下接地彈片 軟性傳輸單元 導電部 缺口 導體接點1' SI 7 M399479 57 and a grounding elastic piece 59, the upper grounding elastic piece 57 and the lower grounding elastic piece 59 are bent from the opening 200 of the accommodating space 20 toward the inside of the accommodating space 20 and are disposed opposite to each other, wherein the upper grounding elastic piece 57 is The spacing between the lower grounding elastic pieces 59 is gradually reduced from the opening 200 of the accommodating space 20 to the inside of the accommodating space 20 to form a slanted surface or a curved surface of the slanting surface, which is advantageous for softness. The transmission unit 6 is inserted into the accommodating space 20, and one side of the flexible transmission unit 6 is provided with a conductive portion 62. The conductive portion 62 can be used for electrically bonding with the upper grounding elastic piece 57, but is not limited thereto. An alternative is that the other side of the flexible transmission unit 6 is provided with a conductive portion 62, the conductive portion 62 can be electrically connected to the lower grounding elastic piece 59, or the conductive portion 62 of both sides of the flexible transmission unit 6 is provided. The conductive portion 62 can be electrically overlapped with the upper grounding elastic piece 57 and the lower grounding elastic piece 59 at the same time. The upper surface of the opening 200 of the accommodating space 20 of the insulative housing 20 is provided with an upper fitting groove 204 and a lower fitting groove 2065. The upper groove 204 and the lower fitting groove 206 are coupled to the elastic shape of the upper grounding elastic piece 57 and the lower grounding elastic piece 59. Forming a grooved structure having an inclined or curved surface of the expanded expansion. Since the grounding elastic piece 57 or the lower grounding elastic piece 59 can be closely attached to the conductive portion 62, and then the plurality of grounding portions 53 on the metal casing 5 are grounded, the electromagnetic wave interference of the connector 1 can be achieved. In the present embodiment, the anti-backup mechanism 56 is adjacent to both sides of the accommodating space 20 and between the conductive terminals 4 and the lower grounding elastic piece 59. The notch 64 is adjacent to both sides of the flexible transmission unit 6 and is located in the flexible transmission unit. 6 between the conductive contact 66 and the conductive portion 62, but is not limited thereto, i si 8 M399479 can also interchange the position between the stop mechanism .56 and the lower grounding spring 59, between the gap 64 and the conductive portion 62 The positional interchange can achieve the effect of the card to be fixed and prevent electromagnetic interference. In addition, the stopping mechanism 56, the unlocking unit 58, the upper grounding elastic piece 57 and the lower grounding elastic piece 59 disposed on the metal casing 5 are integrally formed of metal, and the stopping mechanism 56, the unlocking unit 58, and the upper grounding elastic piece 57 are provided. And the bent and extended shape structure of the lower grounding elastic piece 59 is advantageous for assembling and fixing the metal casing 5 to the insulating body 2. The conductive transmission unit 6 is provided with a conductive portion 62 for the upper grounding elastic piece 57. The conductive portion 62 is overlapped with the upper grounding elastic piece 57. The flexible transmission unit 6 is provided with a plurality of conductor contacts 66 for the contact end 42 of the conductive terminal 4. The conductor contacts 66 are in contact with the contact ends 42. In this embodiment, the flexible transmission unit 6 is a flexible cable (FFC), and the conductive portion 62 is an aluminum foil. However, the flexible transmission unit 6 may also be a flexible printed circuit board (FPC). Portion 62 can also be a silver gel coating. In addition, the conductive portion 62 of the flexible transmission unit 6 and the conductor ® contact 66 are respectively located on the upper and lower sides of the flexible transmission unit 6. In summary, the connector of the present invention is covered with a metal casing on the insulating body, and the grounding elastic piece and the lower grounding elastic piece on the metal casing can closely overlap the characteristics of the conductive portion on the flexible transmission unit. After that, the grounding portion of the metal casing is grounded, so that the effect of preventing external electromagnetic wave interference can be achieved, so as to solve the problem that the conventional connector is easily interfered by external electromagnetic waves and cause a complaint. In addition, the metal casing is also provided with an integrally formed retaining mechanism and an unlocking unit m 9 M399479, which can be used to replace the upper cover of the conventional connector to achieve the purpose of fastening the flexible transmission unit. The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation. [Simple description of the diagram] The first figure is a three-dimensional diagram of the connector combination soft transmission unit of the present creation. The second figure is a perspective view of the connector of the present invention in which the flexible transmission unit has not been combined. The third figure is a perspective exploded view of the connector in the second figure. The fourth figure is a partially enlarged schematic view of the metal casing in the third figure. The fifth figure is a partially enlarged schematic view of the insulative body in the third figure. The sixth figure is a schematic cross-sectional view of the connector in the first figure along the A A line segment. The seventh figure is a schematic cross-sectional view of the connector in the first figure along the BB line. [Main component symbol description] 1 Connector 2 Insulating body 20 accommodating space 200 Opening 202 groove i si M399479 Upper groove lower groove. Upper wall lower wall front wall left wall right wall terminal slot conductive terminal contact end contact Arm lower contact arm welding end metal housing upper case lower pressing stroke space lower case grounding part left case right case stop mechanism retracting elastic piece interlocking elastic piece grounding elastic piece M399479 unlocking unit. elastic piece pressing part operation part first bending part Two bending parts, grounding elastic piece, soft transmission unit, conductive part, notched conductor contact