1291187 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種按鈕開關，特別是關於一種對於基板 從橫方向操作的小型按鈕開關。 【先前技術】 以往，作為行動電話或遊戲機、各種音頻機器等所使用 的操作開關（switch)，是在由絕緣樹脂等成形的殼體 (housing)上設置中央固定接點和外側固定接點，在這些固 定接點的上部，以和外侧固定接點抵接的方式設置半圓罩 形的可動接點。另外，各固定接點與向兩侧方延伸的端子 部導通，向外部導出該端子部，相對基板形成焊接面。 這樣的按鈕開關藉由從上方按壓半圓罩形的可動接點， 可動接點和中央固定接點接觸而導通，起開關的作用。另 外’爲了按壓操作容易進行，在可動接點的上部設置具有 特定形狀的操作鈕。作為這樣的按鈕開關，例如有專利文 獻1所列舉的開關。 [專利文獻1]實登錄2572590號公報 近年來，隨著行動電話、遊戲機、攜帶型音頻機器等的 小型化，此等所使用的按鈕開關等的面安裝製品的安裝面 積小聖化的要求越來越高。但是，在從橫向操作按钮的開 關中，由於隨著操作力而焊接的端子部會從基板上剝離， 所以端子部的小型化困難。尤其是由於橫按操作産生的操 作力會對配置在離钮操作較近之側的前側端子部施加很大 的力，所以在減小端子部的情況下，不能確保前端子部對 106821.doc 1291187 基板的嬋接強度n阻礙了開關以及安裝面積的小型 化。 【發明内容】 本發明係鑒於上述課題所完成者，其目的在於提供一種 即使減小端子部也可以確料端子部的安裝強度，並可謀 求小型化的按鈕開關。 爲了解決上述課題’本發明的按㈣關包括收容接點部 並安裝在基板上的殼體和從該殼體的一側面露出並可在與 上述基板的面平行的方向上操作的按鈕，上述殼體將與上 述接點部導通的端子部從側面導出，該端子部具有對於上 述基板的焊接面；其特徵在於： 上述端子部沿上述按鈕的操作方向從上述殼體的侧面導 出刚後各一對，配置在離上述按鈕較近之側的前端子部具 有比配置在離上述按鈕較遠之側的後端子部增大對於上述 基板的焊接強度的端子補強部。 另外，本發明的按鈕開關，其特徵在於上述端子補強部 係擴大上述前端子部的焊接面而成。 並且，本發明的按紐開關，其特徵在於上述端子部係在 上述殼體下面具有露出面，藉由比上述後端子部的露出面 擴大上述Θ端子部的露出面，而擴大焊接面，形成上述端 子補強部而成。 再者’本發明的按鈕開關，其特徵在於上述端子部係從 上述殼體下面經由階梯部而設置焊接面，上述前端子部的 階梯部係比上述後端子部的階梯部形成於内側，而擴大焊 106821.doc 1291187 接面’形成上述端子補強部而成。 而且，本發明的按鈕開關，其特徵在於上述接點部包括： 配置在上述殼體大致中央的中央固定接點、隔著該中央固 定接點而配置在導出上述端子部的殼體的側面侧的周邊固 定接點和配置在該周邊固定接點上並與中央固定接點自由 接觸分離的可動接點；上述前端子部與上述中央固定接點 導通，上述後端子部與上述周邊固定接點導通。 另外，本發明的按鈕開關，其特徵在於上述端子補強部 由將上述前端子部⑼上述殼體側面導出㈣分向上方折曲 的折曲部構成。 並且，本發明的按鈕開關，其特徵在於上述折曲部係使 上述焊接面的一部分露出上述按鈕側的外方而成。 ^者’本發明的按㈣關，其特徵在於上述端子補強部 ，精由使上述前端子部的前端附近在對於該前端子部的從 殼體側面導出的方向傾斜的折曲線向上方折曲，而使上述 焊接面的一部分露出上述按鈕側的外方而成。 ’本發明的按_關，其特徵在於上述端子補強部 係藉由使上述前端子部在對於從殼體側面導出的方向平行1291187 IX. Description of the Invention: [Technical Field] The present invention relates to a push button switch, and more particularly to a small push button switch for operating a substrate from a lateral direction. [Prior Art] Conventionally, an operation switch used as a mobile phone, a game machine, or various audio devices is provided with a central fixed contact and an outer fixed contact on a housing formed of an insulating resin or the like. A semi-circular cover movable contact is provided on the upper portion of the fixed contact so as to abut against the outer fixed contact. Further, each of the fixed contacts is electrically connected to the terminal portions extending to both sides, and the terminal portions are led to the outside to form a welded surface with respect to the substrate. Such a push button switch is turned on by pressing a movable contact of a semicircular cover shape from above, and the movable contact is electrically connected to the central fixed contact to function as a switch. Further, in order to facilitate the pressing operation, an operation button having a specific shape is provided on the upper portion of the movable contact. As such a push button switch, for example, there is a switch exemplified in Patent Document 1. [Patent Document 1] In the recent years, with the miniaturization of mobile phones, game machines, and portable audio equipment, etc., the mounting area of surface-mounted products such as push button switches used for these applications has been reduced. taller and taller. However, in the switch for operating the button from the lateral direction, since the terminal portion soldered with the operating force is peeled off from the substrate, it is difficult to downsize the terminal portion. In particular, since the operating force generated by the lateral pressing operation exerts a large force on the front terminal portion disposed on the side closer to the button operation, the front terminal portion pair 106826.doc cannot be secured in the case where the terminal portion is reduced. 1291187 The splicing strength n of the substrate hinders the miniaturization of the switch and the mounting area. In view of the above problems, it is an object of the present invention to provide a push button switch that can reduce the mounting strength of a terminal portion even if the terminal portion is reduced. In order to solve the above problems, the fourth aspect of the present invention includes a housing that accommodates a contact portion and is mounted on a substrate, and a button that is exposed from a side surface of the housing and operable in a direction parallel to a surface of the substrate, The housing leads from the side surface of the terminal portion that is electrically connected to the contact portion, and the terminal portion has a soldering surface for the substrate. The terminal portion is derived from the side surface of the housing in the operation direction of the button. The pair of front terminal portions disposed on the side closer to the button has a terminal reinforcing portion that increases the welding strength with respect to the substrate than the rear terminal portion disposed on the side farther from the button. Further, the push button switch of the present invention is characterized in that the terminal reinforcing portion is formed by enlarging a welding surface of the front terminal portion. Further, the push button switch according to the present invention is characterized in that the terminal portion has an exposed surface on the lower surface of the casing, and the exposed surface of the Θ terminal portion is enlarged beyond the exposed surface of the rear terminal portion to expand the welded surface. The terminal reinforcement is formed. Further, the push button switch according to the present invention is characterized in that the terminal portion is provided with a welding surface from a lower surface of the casing via a step portion, and a step portion of the front terminal portion is formed inside than a step portion of the rear terminal portion. Expanded welding 106821.doc 1291187 junction 'formed the above terminal reinforcement. Further, the push button switch according to the present invention is characterized in that the contact portion includes: a central fixed contact disposed substantially at a center of the casing, and a side surface side of the casing that is disposed to extend the terminal portion via the central fixed contact a peripheral fixed contact and a movable contact disposed on the peripheral fixed contact and freely contacting and separated from the central fixed contact; the front terminal portion is electrically connected to the central fixed contact, and the rear terminal portion is fixed to the peripheral contact Turn on. Further, the push button switch according to the present invention is characterized in that the terminal reinforcing portion is formed by a bent portion that guides the front side portion (9) of the front side of the casing (4) to be bent upward. Further, in the push button switch of the present invention, the bent portion is formed by exposing a part of the welding surface to the outside of the button side. According to the fourth aspect of the present invention, the terminal reinforcing portion is configured such that the vicinity of the front end of the front terminal portion is bent upward in a curve which is inclined toward a direction from the side surface of the front terminal portion of the front terminal portion. And a part of the welding surface is exposed to the outside of the button side. The pressing of the present invention is characterized in that the terminal reinforcing portion is made parallel by the direction in which the front terminal portion is led out from the side of the casing.
其特被在於上述端子補強部 口，而加長上述焊接面的端 而且’本發明的按鈕開關，其 係將上述前端子部的前端部切口Specifically, the terminal reinforcing portion is formed to extend the end of the welding surface, and the push button switch of the present invention cuts the front end portion of the front terminal portion.
其特被在於上述前端子部係 106821.doc 1291187 寬巾S形成在上述殼體的後側，上述後端子部係寬幅形成在 上述殼體的前側而成。 [發明效果] 根據本發明的按鈕開關，端子部沿按鈕的操作方向從殼 體的側面導出前後各一對，配置在離按鈕較近之側的前端 子部具有比配置在離按鈕較遠之侧的後端子部對於基板增 大焊接強度的端子補強部；從而可以提高由按鈕操作所産 生的較大載荷的前端子部對於基板的焊接強度，因此即使 端子部小型化，也可以確保充分的焊接強度。即，可謀求 按鈕開關的小型化。 而且’根據本發明的按鈕開關，端子補強部擴大前端子 部的焊接面；從而可使前端子部對於基板的焊接強度與擴 大的焊接面的大小成比例地提高。 並且，根據本發明的按鈕開關，端子部在殼體下面具有 露出面’藉由比後端子部的露出面擴大前端子部的露出 面’而擴大焊接面，形成端子補強部；從而不改變端子部 從殼體側面的導出量，就能夠提高開關整體對於基板的焊 接強度，並且可比後端子部更牢靠地安裝前端子部。 再者，根據本發明的按鈕開關，端子部從殼體下面經由 階梯部而設置焊接面，前端子部的階梯部比後端子部的階 梯部形成於内側，從而擴大焊接面，形成端子補強部；因 此可藉由改變階梯部的位置，使焊接面的大小變化，所以 能夠比後端子部更容易地將前端子部對於基板牢靠地安 裝。 106821.doc 1291187 而且，根據本發明的按鈕開關，前端子部與中央固定接 點導通’後端子部與周邊固定接點導通，從而即使增大焊 接的端子的露出面’也可確保延伸面對於固定接點的距 離，因此可抑制在焊接時焊劑的進入。 另外，根據本發明的按鈕開關，端子部藉由將從殼體側 面導出的端子導出部向上方折曲，從而可確保對於從殼體 側面導出的方向上的焊接強度，並且能夠容易地目視確認 焊接。 並且，根據本發明的按鈕開關，端子補強部使前端子部 的焊接面的一部分露出按鈕側，從而可提高對於前端子部 從殼體側面導出的方向及與其正交的方向這兩個方向上的 焊接強度，所以即使端子部小型化，也可以確保充分的焊 接強度。即，可謀求按紐開關的小型化。 再者，根據本發明的按鈕開關，藉由前端子部的焊接面 對於前端子部從殼體侧面導出的方向傾斜或在平行的折曲 線向上方折曲，而使焊接面的一部分露出按鈕側，形成端 子補強部’從而可使前端子部的焊接面的—部分容易地露 出殼體的前面。 而且，根據本發明的按紐開關，端子補強部將前端子部 的前端部切口而加長焊接面的端面長度，&而可提高焊接 面的安裝強度。 體根據本發明的按㈣關，前端子部寬幅形成在殼 ::後側，後端子部寬幅形成在殼體的前侧1而可較大 確保焊接面，並可以從共同的帶狀金屬材料高效地獲取 106821.doc 1291187 含有固定接點的前端子部和後端子部，因此可降低成本。 【實施方式】 錄參照附圖對本發明的實施例進行詳細說明。圖1是本實 施例中的按鈕開關的俯視圖’圖2是按鈕開關的前視圖，圖 3是按鈕開關的仰視圖，圖4是圖1的八_八線剖面圖。如此等 各圖所示，本實施例中，按鈕開關丨具有：收容按鈕2和接 點部10的殼體3和與接點部10導通並且從殼體3的側面怕 外方導出的端子部15, #由操作按紐2，可進行開關的切 換。本實施例的按鈕開關是按鈕2對於基板可在水平方向上 操作的橫按型。 殼體3如圖丨以及圖2所示，被形成爲大致方形的箱狀，由 樹脂等的絕緣材料形成。在殼體3上，如圖3所示，收容有 按鈕2和接點部10，藉由使按鈕2在前後方向上移動，各接 點部10抵接或分開而可以進行開閉的切換。此處，在殼體3 的上面6上，從中央部向殼體3内切下而形成與後述的可動 接點14相對向的傾斜片7。 傾斜片7如圖4所示，使可在水平方向上操作的按紐2向下 方移動，在殼體3的上面6上設置u字形的切口，藉由將被 該切口包圍的部分向下方折曲而形成。雖然在本實施例中 是將殼體3的上面6折曲而形成傾斜片7，但是並不限定於本 實施例，例如可以從殼體3的上面6以懸掛的方式安裝等。 進行開關操作的按鈕2由樹脂材料形成，並配置在殼體^ 的上部。而且，在前端具有與後述的可動接點14接觸的接 觸部2a，具有經由動作部汕從殼體3的前面露出外方的按壓 106821.doc 1291187 部2c。藉由向殼體3的内方按壓按壓部2C，形成接觸部2a和 傾斜片7滑動並被向下方引導，向下方按壓兼用作後述的鍵 擊彈簧的可動接點14而使其反轉，各接點部抵接，產生鍵 擊感覺和進行開關的切換的構造。 收谷在设體3中的接點部1 〇如圖3所示，由固定接點11和 可動接點14構成。固定接點11由中央固定接點丨2和周邊固 定接點13構成，上述中央固定接點u具有上面形成爲凸狀 的大致圓形的中央接觸部12a;上述周邊固定接點13於左右 方向夾持中央固定接點12的對稱位置具有上面形成爲凸狀 的大致矩形形狀的周邊接觸部13a、13a。圖5是表示本實施 例中的固定接點11形狀的前視圖。 中央固定接點12由金屬等導電性材料形成爲板狀，如圖4 以及圖5所示，具有：與中央接觸部12a導通並朝向殼體3 的前方直線延伸的中央連接部12b和與中央連接部12b大致 正交導通並向殼體3的左右兩侧方直線延伸的前連接片 12c。 同樣，周邊固定接點13由金屬等導電性材料形成，具有·· 與各周邊接觸部13c導通並在與中央連接部i2b相反的方向 上延伸的周邊連接部13b和與周邊連接部i3b導通並向殼體 3的左右兩側方直線延伸的後連接片i3c。即，前連接片 和後連接片13c設置爲相互大致平行。 各固定接點11藉由使中央接觸部12a和周邊接觸部13a、 13 a露出殼體3的内底面上被鑲嵌成形、固定，内包在殼體3 内而被固定。而且，在各連接片12c、13c的兩端分別設置 106821.doc -11 - 1291187 從殼體3的左右兩侧面4、4突出而露出的端子部15、15。即， 從殼體3的兩侧面4、4導出前後各一對與中央固定接點12 導通的前端子部15a、15a和與周邊固定接點導通的後端子 部15b、15b。圖6是表示端子部15周邊的放大仰視圖。 如圖5以及圖6所示，端子部15在和兩連接片12c、13c的 端部分別具有階梯部23，藉由階梯部23，一端被下折曲， 其刚端和殼體3的下面5大致平行。即，端子部15分別具有 露出殼體3的下面5的露出面24，沿著殼體3的下面5，從殼 體3側面4導出。在本實施例中，將前端子部i5a的階梯部23 作為设體3内部的特定位置，將後端子部丨5b的階梯部23作 為殼體3的侧面4附近。即，前端子部i5a比後端子部1讣從 殼體3的内側導出。 從殼體3導出的端子部15的下面是安裝在基板5〇上的焊 接面16,按鈕開關丨整體藉由基板5〇和焊接部16的接合被固 定。即，露出殼體3的下面5的露出面24也是對於基板50的 焊接面16。另外，前端子部i5a在殼體3的後侧、後端子部 15b在殼體3的前侧分別寬幅形成，謀求擴大焊接面16。 在靠近按紐2侧配置的前端子部15&藉由按鈕2的操作，被 施加比後端子部15b大的載荷。因此，在前端子部15a上形 成比後端子部15b增大對基板50的谭接強度的端子補強部 17 〇 焊接強度與焊接面16的大小成比例。即，端子補強部i 7 疋前端子部15a的露出面i6a中，比後端子部i5b在殼體3内 侧所具有的部分。圖7是表示在本實施例中，將端子部15 106821.d〇i -12- 1291187 安襄在基板50上的狀態的剖面圖，圖7(勾是表示前端子部 15a和基板50的關係的剖面圖，圖7(13)是表示後端子部i5b 和基板5 0的關係的剖面圖。 如圖7所示，前端子部i5a由於焊接面16比後端子15b的焊 接面16從殼體3下面5的内側形成，並且形成有端子補強部 17 ’所以對於後端子部丨5b，僅是端子補強部丨7的部分就可 牢靠地安裝在基板50上。 而且，因爲前端子部l5a和後端子部l5b從殼體3的側面4 的導出量相同，所以不增大從殼體3的導出量，而可以提高 前端子15a對基板50的焊接強度。即，即使端子部15自身小 型化，也可以確保特別施加由按钮2産生的操作載荷的前端 子部15 a的焊接強度，可以使按姐開關1整體小型化。並且， 階梯部23藉由沖壓加工可以容易地形成。 月子部15a與配置在殼體3的大致中央處的中央固定接 點12導通，後端子部15b與周邊固定接點13導通，該周邊固 定接點13以在殼體3的左右方向夾持中央固定接點12的方 式配置。即，由於中央固定接點12配置在比周邊固定接點 13對於端子部15離開的位置上，所以將與中央固定接點12 V通的刖端子部15a和後端子部15b相比，可以將焊接面16 形成到殼體3的更内方。 藉此使岫‘子部15a比後端子部15b從殼體3下面5的内 側導出而形成端子補強部17,也可以確保到中央固定接點 12的距離。即’可以提高前端子部15&對基板π的焊接強 度’並且能夠防止焊劑進行固定接點U。 106821.doc -13- 1291187 雖然在本實施例中，端子部15形成爲從殼體3的側面4直 線導出的形狀，但是也可以如圖8所示，形成將端子部15 的前端向上方折曲的形狀。藉此，確保端子部15對基板5〇 的烊接強度，而且焊接的目視確認也變得容易。 而且’殼體3如圖3以及圖4所示，具有外周下端抵接在周 邊固疋接點13的周邊接觸部13a上而配置的可動接點μ。可 動接點14由金屬等導電性材料構成，並被形成爲具有彈性 的半圓罩形。在可動接點14的上部固定有在下面塗佈黏接 劑之具有撓性之大致圓形的絕緣薄膜30。該絕緣薄膜3〇還 固定在可動接點14的中央頂點部14a上，將半圓罩形的可動 接點14保持在殼體3内的特定位置上，並且防止粉塵、焊劑 等侵入開關接點部分。 而且，按鈕2配置在該絕緣薄膜30的上部，經由絕緣薄膜 3〇，藉由按鈕2的操作按壓可動接點14。另外，雖然在本實 施例中’可動接點14的形狀爲圓形，但是並不特別限定於 此’例如也可以是八角形、方形等其他的形狀。 其次，對第2實施例進行說明。圖9是本實施例中的按鈕 開關1的俯視圖。本實施例中的按鈕開關丨和第丨實施例相 同，由收容按鈕2和接點部10的殼體3和與接點部1〇導通並 且從殼體3的側面4向外方導出的端子部15構成，使前端子 部15a比後端子部15b增大對基板5〇的焊接強度的端子補強 部1 7的形狀與第1實施例不同。 如圖9所不，本實施例中，從殼體3的側面4導出之前後一 對端子部15、15中的前端子部15a於其前端形成端子補強部 106821.doc -14- 1291187 17。端子補強部17藉由將前端子部15a的前端角部2〇向上方 折曲而形成。即，前端子部15a的前端角部2〇被向上方彎 曲’成為焊接面16露出按紐2側的狀態。 圖10是表示形成端子補強部17的圖，圖10(a)是表示端子 補強部17形成前的俯視圖，圖1〇(b)是表示端子補強部丨了形 成後的俯視圖，圖11是圖10(b)的B-B剖面圖。端子補強部 17是在前端子部15a的前端角部20,藉由在圖1〇(幻所示的折 曲線18向上方折曲而形成。折曲線18係對於前端子部 從殼體3導出的方向傾斜的方向，藉由沿著該折曲線i8將前 端子部15a的前端向上方折曲，如圖1〇(b)所示，形成端子 補強部17。 另外，如圖11所示，端子補強部17的彎曲角度0爲小於 9〇度的角度。藉由使彎曲角度0成爲小於9〇度的角度，可 以在端子補強部17和基板50之間形成空間部19。因此，如 圖12所示，藉由在該空間部19填充焊錫4〇 ,可以充分確保 端子補強部17對於基板5〇的焊接強度。 藉由以折曲線18為對於從殼體3的導出方向傾斜的方向 形成端子補強部17，端子補強部17的焊接面16成爲朝向按 鈕側的形狀，該按鈕側係端子部15從殼體3導出的方向及與 其正交的方向。因此，藉由將前端子部15a的端子補強部Η 焊接在基板50上’可以對於兩方的方向進行焊接，前述兩 方是指前端子部15a從殼體3的導出方向及與其正交的方 向0 即，藉由在前端子部15a上形成端子補強部Η，可以提高 106821.doc -15- 1291187 對於前端子部15a從殼體3的導出方向及與其正交的殼體3 的前後方向的方向的焊接強度，可以提高前端子部l5a對基 板50的安裝強度。因此，即使端子部丨5自身小型化，也可 以充分確保大幅施加由按鈕2操作所産生的操作載荷的前 端子部15 a對於基板50的焊接強度，可以謀求開關1整體的 小型化。 其次，對第3實施例進行說明。圖13是本實施例中的按鈕 開關1的俯視圖。本實施例中的按鈕開關丨與第2實施例相 同，由收容按鈕2和接點部1〇的殼體3和與接點部1〇導通並 且從殼體3的側面4向外方導出的端子部15構成，在前端子 部15a上形成的端子補強部17的形狀與第2實施例不同。 如圖13所示，在本實施例的前端子部15a上形成從按鈕2 側的侧部21向上方延伸出的端子補強部17。即，前端子部 15a的焊接面16的一部分成為露出按鈕2側的狀態。 圖14是表示形成端子補強部17的圖，圖14(勾是表示端子 補強部17形成前的俯視圖，圖14(b)是表示端子補強部口形 成後的俯視圖。前端子部15a在按鈕2側的側部21上具有側 板22，藉由將該侧部21作爲折曲線18而向上方折曲侧板 22、’可形成端子補強部17。即，使折曲線18與前端子部15& 出方向平行。另外，藉由將端子補強部17的彎曲角度 設定爲比90度小的角度，可以獲得與第2實施例相同的效 果。 藉由將折曲線18設定在對於從殼體3的導出方向平行的 方向上而形成端子補強部17，端子補強部17的焊接面邮 106821.doc -16- 1291187 爲朝向按鈕2側的形狀。因此，如果將前端子部1 5a焊接到 基板50上’則對於按趣2的操作方向，可以藉由端子補強部 17進行焊接，可以提高前端子部15a對基板5〇的焊接強度。 即’即使端子部15自身小型化，也可以確保大幅施加由按 姐2操作所産生的操作載荷的前端子部i5a對於基板5〇的焊 接強度’可以谋求開關1整體的小型化。 其次，對第4實施例進行說明。圖15是本實施例中的按鈕 開關1的端子部15的放大俯視圖。本實施例中的按鈕開關j 與第2或第3實施例相同，由收容按叙2和接點部1 〇的殼體3 和與接點部10導通並且從殼體3的侧面4向外方導出的端子 W 15構成，在剞端子部15a上形成的端子補強部丨7的構成與 第2或第3實施例不同。 如圖15所示，在本實施例中，將端子補強部17形成在前 端子部15a的前端部。端子補強部17將前端子部Ua的前端 大致中央部形成切口形狀。藉此，可以增長焊接面16的端 面，可以增大對端面方向的安裝強度。由於端子補強部17 的端面形狀爲朝向按鈕2的操作方向以及殼體3的外方的形 狀，所以藉由將端子補強部17焊接到基板5〇上，可以對於 違些各方向提兩焊接強度。即，即使端子部丨5自身小型化， 也可以確保大幅施加由按鈕2操作所産生的操作載荷的前 端子部15a對於基板5〇的焊接強度，可以謀求開_整體的 小型化。雖然在本實施例中，以端子補強部17的切口形狀 爲大致半圓形，但是可間如是三角形或多角料形成各 種各樣的形狀。 106821.doc -17- 1291187 以上，雖然對本發明的實施例進行了說明，但是本發明 的適用並不限定於這些實施例，當然在其技術思想範圍内 可以適用於各種各樣的方式。在本方式中，雖然殼體3的形 狀爲大致方形，但是並不限定於本實施例，若是可以收容 各接點部10的形狀，以底部爲大致圓形等。 【圖式簡單說明】 圖1是本實施例中的按鈕開關的俯視圖。 圖2是按紐開關的前視圖。 圖3是按鈕開關的仰視圖。 圖4是圖1的Α·Α線剖面圖。 圖5是表示本實施例中的固定接點形狀的前視圖。 圖6是表示圖3的端子部周邊的放大圖。 圖7(a)、（b)是表示將端子安裝在基板上的狀態的剖面圖。 圖8是表示適用於和本實施例不同的端子形狀的剖面圖。 圖9是第2實施例中的按紐開调的俯視圖。 圖10(a)、（b)是表示第2實施例中的端子補強部形成的俯 視圖。 圖11是形成有端子補強部的前端子的剖面圖。 圖12是表示將形成有端子補強部的前端子安裝到基板上 的狀態的剖面圖。 圖13是第3實施例中的按鈕開關的俯視圖。 圖14(a)、（b)是表示第3實施例中的端子補強部形成的俯 視圖。 圖15是第4實施例中的按鈕開關的端子部的放大俯視圖。 106821.doc -18- 1291187The front terminal portion 106822.doc 1291187 is formed on the rear side of the casing, and the rear terminal portion is formed to be wide on the front side of the casing. [Effect of the Invention] According to the push button switch of the present invention, the terminal portion is led out from the side surface of the casing in the operation direction of the button, and the front terminal portion disposed on the side closer to the button is disposed farther than the button. The rear terminal portion on the side increases the welding strength of the terminal reinforcing portion with respect to the substrate; thereby, the welding strength of the front terminal portion to the substrate with a large load caused by the button operation can be improved, and therefore, even if the terminal portion is miniaturized, sufficient sufficient thickness can be ensured. Welding strength. That is, it is possible to reduce the size of the push button switch. Further, according to the push button switch of the present invention, the terminal reinforcing portion enlarges the welding surface of the front terminal portion; and the welding strength of the front terminal portion with respect to the substrate can be increased in proportion to the size of the enlarged welding surface. Further, according to the push button switch of the present invention, the terminal portion has an exposed surface on the lower surface of the casing. The enlarged welding surface is formed by enlarging the exposed surface of the front terminal portion than the exposed surface of the rear terminal portion, thereby forming a terminal reinforcing portion; thereby not changing the terminal portion. The amount of lead-out from the side of the casing can increase the welding strength of the entire switch to the substrate, and the front terminal portion can be mounted more securely than the rear terminal portion. Further, according to the push button switch of the present invention, the terminal portion is provided with a welding surface from the lower surface of the casing via the step portion, and the step portion of the front terminal portion is formed inside the step portion of the rear terminal portion, thereby expanding the welding surface and forming the terminal reinforcing portion. Therefore, the size of the welded surface can be changed by changing the position of the step portion, so that the front terminal portion can be firmly attached to the substrate more easily than the rear terminal portion. Further, according to the push button switch of the present invention, the front terminal portion and the central fixed contact are electrically connected, and the rear terminal portion and the peripheral fixed contact are electrically connected, so that the extended surface can be ensured even if the exposed surface of the soldered terminal is increased. The distance between the joints is fixed, so that the ingress of flux during welding can be suppressed. Further, according to the push button switch of the present invention, the terminal portion is bent upward by the terminal lead-out portion that is led out from the side surface of the casing, so that the welding strength in the direction from the side surface of the casing can be ensured, and the terminal can be easily visually confirmed. welding. Further, according to the push button switch of the present invention, the terminal reinforcing portion exposes a part of the welding surface of the front terminal portion to the button side, thereby improving the direction in which the front terminal portion is led out from the side surface of the casing and the direction orthogonal thereto. Since the welding strength is small, even if the terminal portion is miniaturized, sufficient welding strength can be ensured. In other words, it is possible to reduce the size of the push button switch. Further, according to the push button switch of the present invention, the welding surface of the front terminal portion is inclined with respect to the direction in which the front terminal portion is led out from the side surface of the casing or is bent upward in a parallel folding curve, so that a part of the welding surface is exposed to the button side. The terminal reinforcement portion is formed so that the portion of the welding surface of the front terminal portion can be easily exposed to the front surface of the casing. Further, according to the push button switch of the present invention, the terminal reinforcing portion cuts the front end portion of the front terminal portion to lengthen the end face length of the welded surface, and the mounting strength of the welded surface can be improved. According to the invention, according to the fourth aspect of the invention, the front terminal portion is formed in a wide width on the rear side of the casing: the rear terminal portion is formed on the front side 1 of the casing to ensure a larger welding surface and can be obtained from a common belt shape. The metal material efficiently acquires the front terminal portion and the rear terminal portion of the fixed joint of 106821.doc 1291187, thereby reducing the cost. [Embodiment] An embodiment of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 is a plan view of a push button switch in the embodiment. Fig. 2 is a front view of the push button switch, Fig. 3 is a bottom view of the push button switch, and Fig. 4 is a sectional view taken along line VIII of Fig. 1. As shown in the figures, in the present embodiment, the push button switch 丨 has a housing 3 that houses the button 2 and the contact portion 10, and a terminal portion that is electrically connected to the contact portion 10 and that is outwardly drawn from the side of the housing 3. 15, # By operating the button 2, the switch can be switched. The push button switch of this embodiment is a horizontal press type in which the button 2 can be operated in the horizontal direction with respect to the substrate. As shown in Fig. 2 and Fig. 2, the casing 3 is formed in a substantially square box shape and is formed of an insulating material such as resin. As shown in Fig. 3, the case 3 accommodates the push button 2 and the contact portion 10, and by moving the push button 2 in the front-rear direction, the contact portions 10 are abutted or separated to switch between opening and closing. Here, on the upper surface 6 of the casing 3, the center portion is cut into the casing 3 to form an inclined piece 7 facing the movable contact 14 to be described later. As shown in FIG. 4, the inclined piece 7 moves the button 2 which is operable in the horizontal direction downward, and a U-shaped slit is formed in the upper surface 6 of the casing 3, by folding the portion surrounded by the slit downward. Formed by the song. Although the inclined piece 7 is formed by bending the upper surface 6 of the casing 3 in the present embodiment, it is not limited to the embodiment, and for example, it may be mounted from the upper surface 6 of the casing 3 in a suspended manner. The button 2 for performing the switching operation is formed of a resin material and disposed at the upper portion of the casing 2. Further, the contact portion 2a having a contact with a movable contact 14 to be described later at the tip end has a pressing portion 106821.doc 1291187 2c that is exposed outside from the front surface of the casing 3 via the operating portion. When the pressing portion 2C is pressed to the inside of the casing 3, the contact portion 2a and the inclined piece 7 are slid and guided downward, and the movable contact 14 which also serves as a key spring to be described later is pressed downward to be reversed. Each of the contact portions abuts to generate a keystroke sensation and a configuration for switching the switch. The contact portion 1 of the valley in the installation 3 is composed of a fixed contact 11 and a movable contact 14 as shown in Fig. 3 . The fixed contact 11 is composed of a central fixed contact 丨 2 and a peripheral fixed contact 13 having a substantially circular central contact portion 12a formed in a convex shape; the peripheral fixed contact 13 is in the left and right direction The symmetrical position sandwiching the central fixed contact 12 has peripheral contact portions 13a, 13a of a substantially rectangular shape formed in a convex shape. Fig. 5 is a front elevational view showing the shape of the fixed contact 11 in the present embodiment. The central fixed contact 12 is formed in a plate shape from a conductive material such as metal. As shown in FIGS. 4 and 5, the central fixed contact 12 has a central connecting portion 12b that is electrically connected to the central contact portion 12a and extends straight toward the front of the casing 3. The connecting portion 12b is substantially orthogonally connected to the front connecting piece 12c that linearly extends to the left and right sides of the casing 3. Similarly, the peripheral fixed contact 13 is formed of a conductive material such as metal, and has a peripheral connecting portion 13b that is electrically connected to each peripheral contact portion 13c and extends in a direction opposite to the central connecting portion i2b, and is electrically connected to the peripheral connecting portion i3b. A rear connecting piece i3c extending straight to the left and right sides of the casing 3. That is, the front tab and the rear tab 13c are disposed to be substantially parallel to each other. Each of the fixed contacts 11 is inlaid and fixed by exposing the center contact portion 12a and the peripheral contact portions 13a and 13a to the inner bottom surface of the casing 3, and is housed in the casing 3 to be fixed. Further, terminal portions 15 and 15 which are protruded from the left and right side faces 4 and 4 of the casing 3 are provided at both ends of each of the connecting pieces 12c and 13c, respectively, 106821.doc -11 - 1291187. That is, the front and rear terminal portions 15a and 15a which are electrically connected to the central fixed contact 12 and the rear terminal portions 15b and 15b which are electrically connected to the peripheral fixed contact are led out from the both side faces 4 and 4 of the casing 3. FIG. 6 is an enlarged bottom view showing the periphery of the terminal portion 15. As shown in FIGS. 5 and 6, the terminal portion 15 has a step portion 23 at the end portions of the two connecting pieces 12c, 13c, respectively, and one end portion is bent downward by the step portion 23, the rigid end thereof and the lower surface of the casing 3 5 is roughly parallel. That is, the terminal portions 15 each have an exposed surface 24 exposing the lower surface 5 of the casing 3, and are led out from the side surface 4 of the casing 3 along the lower surface 5 of the casing 3. In the present embodiment, the step portion 23 of the front terminal portion i5a is defined as a specific position inside the installation body 3, and the step portion 23 of the rear terminal portion 丨5b is defined as the vicinity of the side surface 4 of the casing 3. That is, the front terminal portion i5a is led out from the inner side of the casing 3 than the rear terminal portion 1?. The lower surface of the terminal portion 15 led out from the casing 3 is a soldering surface 16 mounted on the substrate 5, and the push button switch is integrally fixed by the bonding of the substrate 5A and the welded portion 16. That is, the exposed surface 24 of the lower surface 5 of the exposed casing 3 is also the welded surface 16 of the substrate 50. Further, the front terminal portion i5a is formed wide on the rear side of the casing 3 and the rear terminal portion 15b on the front side of the casing 3, thereby expanding the welded surface 16. The front terminal portion 15& which is disposed near the button 2 side, is loaded with a larger load than the rear terminal portion 15b by the operation of the button 2. Therefore, the terminal reinforcing portion 17 〇 having a higher tantalum strength to the substrate 50 than the rear terminal portion 15b is formed on the front terminal portion 15a, and the welding strength is proportional to the size of the welded surface 16. In other words, the terminal reinforcing portion i 7 is a portion of the exposed surface i6a of the front terminal portion 15a that is larger than the rear terminal portion i5b on the inner side of the casing 3. Fig. 7 is a cross-sectional view showing a state in which the terminal portion 15 106821.d〇i -12 - 1291187 is mounted on the substrate 50 in the present embodiment, and Fig. 7 (the hook indicates the relationship between the front terminal portion 15a and the substrate 50). Fig. 7 (13) is a cross-sectional view showing the relationship between the rear terminal portion i5b and the substrate 50. As shown in Fig. 7, the front terminal portion i5a is from the housing by the soldering surface 16 than the soldering surface 16 of the rear terminal 15b. 3 is formed on the inner side of the lower surface 5, and the terminal reinforcing portion 17' is formed. Therefore, for the rear terminal portion 丨5b, only the portion of the terminal reinforcing portion 丨7 can be securely mounted on the substrate 50. Moreover, because the front terminal portion 15a and Since the amount of lead-out of the rear terminal portion 15b from the side surface 4 of the casing 3 is the same, the welding strength of the front terminal 15a to the substrate 50 can be increased without increasing the amount of lead-out from the casing 3. That is, even if the terminal portion 15 itself is miniaturized It is also possible to ensure the welding strength of the front terminal portion 15a to which the operation load generated by the button 2 is particularly applied, and it is possible to miniaturize the entire switch 1. The step portion 23 can be easily formed by press working. 15a and a center disposed at substantially the center of the casing 3 The fixed contact 12 is electrically connected, and the rear terminal portion 15b is electrically connected to the peripheral fixed contact 13 which is disposed so as to sandwich the central fixed contact 12 in the left-right direction of the casing 3. That is, since the central fixed contact Since the 12 is disposed at a position apart from the peripheral fixed contact 13 with respect to the terminal portion 15, the soldering surface 16 can be formed to the housing as compared with the 刖 terminal portion 15a and the rear terminal portion 15b that are connected to the central fixed contact 12V. Further, the 子' sub-portion 15a is led out from the inner side of the lower surface 5 of the casing 3 to form the terminal reinforcing portion 17, and the distance to the central fixed contact 12 can be secured. The front terminal portion 15 & the welding strength to the substrate π is increased and the flux can be prevented from being fixed to the joint U. 106821.doc -13 - 1291187 Although in the present embodiment, the terminal portion 15 is formed to be straight from the side 4 of the casing 3 Although the shape is derived, as shown in Fig. 8, a shape in which the distal end of the terminal portion 15 is bent upward may be formed. Thereby, the strength of the connection between the terminal portion 15 and the substrate 5 is ensured, and the visual confirmation of the welding also changes. Easy. And 'the housing 3 is like As shown in Fig. 3 and Fig. 4, the movable contact 51 is disposed such that the lower end of the outer periphery abuts against the peripheral contact portion 13a of the peripheral fixed contact 13. The movable contact 14 is made of a conductive material such as metal and is formed as The semi-circular cover has an elastic shape. A substantially circular insulating film 30 having a flexible adhesive is applied to the upper portion of the movable contact 14. The insulating film 3 is also fixed to the center of the movable contact 14. On the apex portion 14a, the semicircular cover movable contact 14 is held at a specific position inside the casing 3, and dust, flux, and the like are prevented from intruding into the switch contact portion. Further, the button 2 is disposed on the upper portion of the insulating film 30, and the movable contact 14 is pressed by the operation of the button 2 via the insulating film 3?. Further, in the present embodiment, the shape of the movable contact 14 is circular, but is not particularly limited thereto. For example, other shapes such as an octagonal shape and a square shape may be used. Next, the second embodiment will be described. Fig. 9 is a plan view of the push button switch 1 in the present embodiment. The push button switch 本 in the present embodiment is the same as the third embodiment, and the housing 3 that houses the button 2 and the contact portion 10 and the terminal that is electrically connected to the contact portion 1 and are led out from the side surface 4 of the housing 3 are the same. The shape of the terminal portion 15a is such that the shape of the terminal reinforcing portion 17 which increases the welding strength of the front terminal portion 15a to the substrate 5A is different from that of the first embodiment. As shown in Fig. 9, in the present embodiment, the front terminal portion 15a of the pair of terminal portions 15, 15 before and after the front side 4 of the casing 3 is led out to form a terminal reinforcing portion 106821.doc - 14 - 1291187 17 at the front end thereof. The terminal reinforcing portion 17 is formed by bending the front end corner portion 2 of the front terminal portion 15a upward. In other words, the front end corner portion 2 of the front terminal portion 15a is bent upward, and the welding surface 16 is exposed to the button 2 side. FIG. 10 is a plan view showing the formation of the terminal reinforcing portion 17. FIG. 10(a) is a plan view showing the front side of the terminal reinforcing portion 17, and FIG. 1(b) is a plan view showing the terminal reinforcing portion being formed, and FIG. BB section view of 10(b). The terminal reinforcing portion 17 is formed at the front end corner portion 20 of the front terminal portion 15a, and is formed by folding the curved line 18 shown in FIG. 1A. The folding curve 18 is derived from the housing 3 for the front terminal portion. The direction in which the direction is inclined is bent upward by the front end of the front terminal portion 15a along the folding line i8, and the terminal reinforcing portion 17 is formed as shown in Fig. 1(b). Further, as shown in Fig. 11, The bending angle 0 of the terminal reinforcing portion 17 is an angle smaller than 9 。. By making the bending angle 0 an angle smaller than 9 〇, the space portion 19 can be formed between the terminal reinforcing portion 17 and the substrate 50. As shown in Fig. 12, by filling the space portion 19 with the solder 4, the soldering strength of the terminal reinforcing portion 17 to the substrate 5A can be sufficiently ensured. The folding curve 18 is formed in a direction inclined from the direction in which the casing 3 is led out. In the terminal reinforcing portion 17, the welding surface 16 of the terminal reinforcing portion 17 has a shape facing the button side, and the direction in which the button side terminal portion 15 is led out from the casing 3 and the direction orthogonal thereto. Therefore, by the front terminal portion 15a Terminal reinforcement Η soldered on substrate 50 'can be for two The welding is performed in the direction of the front terminal portion 15a from the direction in which the casing 3 is led out and the direction orthogonal thereto, that is, by forming the terminal reinforcing portion 在 on the front terminal portion 15a, it is possible to improve 106821.doc - 15- 1291187 The welding strength of the front terminal portion 15a from the direction in which the casing 3 is led out and the direction in the front-rear direction of the casing 3 orthogonal thereto can improve the mounting strength of the front terminal portion 15a to the substrate 50. Therefore, even the terminal portion In the case where the size of the crucible 5 itself is reduced, it is possible to sufficiently ensure the welding strength of the front terminal portion 15 a for the substrate 50 by the operation load generated by the operation of the button 2, and it is possible to reduce the size of the entire switch 1 . Fig. 13 is a plan view of the push button switch 1 in the present embodiment. The push button switch 本 in the present embodiment is the same as the second embodiment, and the housing 3 and the contact portion of the housing button 2 and the contact portion 1 are The terminal portion 15 that is electrically connected to the outside and is led out from the side surface 4 of the casing 3 is configured to have a shape different from that of the second embodiment. The shape of the terminal reinforcing portion 17 formed on the front terminal portion 15a is different from that of the second embodiment. Before the present embodiment The terminal portion 15a is formed with a terminal reinforcing portion 17 that extends upward from the side portion 21 on the side of the button 2. That is, a part of the welding surface 16 of the front terminal portion 15a is in a state in which the button 2 is exposed. Fig. 14 is a view showing formation of a terminal reinforcement. FIG. 14 is a plan view showing a state before the terminal reinforcing portion 17 is formed, and FIG. 14(b) is a plan view showing the terminal reinforcing portion opening. The front terminal portion 15a has a side portion 21 on the button 2 side. The side plate 22 is formed by bending the side plate 22 and the side reinforcing portion 17 by bending the side portion 21 as a folding line 18. That is, the folding curve 18 is parallel to the front terminal portion 15 & Further, by setting the bending angle of the terminal reinforcing portion 17 to an angle smaller than 90 degrees, the same effect as in the second embodiment can be obtained. The terminal reinforcing portion 17 is formed by setting the folding curve 18 in a direction parallel to the direction in which the casing 3 is led out, and the welding surface of the terminal reinforcing portion 17 is 106821.doc -16 - 1291187 which is oriented toward the button 2 side. Therefore, if the front terminal portion 15a is soldered to the substrate 50, the soldering strength of the front terminal portion 15a to the substrate 5A can be improved by soldering the terminal reinforcing portion 17 in the operation direction of the second object. In other words, even if the terminal portion 15 itself is miniaturized, it is possible to ensure the miniaturization of the entire switch 1 by ensuring that the welding strength of the front terminal portion i5a to the substrate 5A by the operation load generated by the operation of the sister 2 is greatly increased. Next, a fourth embodiment will be described. Fig. 15 is an enlarged plan view showing the terminal portion 15 of the push button switch 1 in the present embodiment. The push button switch j in this embodiment is the same as the second or third embodiment, and is housed by the housing 3 accommodating the reference 2 and the contact portion 1 and is electrically connected to the contact portion 10 and outward from the side 4 of the housing 3. The terminal-derived terminal W 15 is configured, and the configuration of the terminal reinforcing portion 丨7 formed on the 剞 terminal portion 15a is different from that of the second or third embodiment. As shown in Fig. 15, in the present embodiment, the terminal reinforcing portion 17 is formed at the front end portion of the front terminal portion 15a. The terminal reinforcing portion 17 has a slit shape in a substantially central portion of the front end of the front terminal portion Ua. Thereby, the end face of the welded face 16 can be enlarged, and the mounting strength to the end face direction can be increased. Since the shape of the end surface of the terminal reinforcing portion 17 is the direction of the operation of the button 2 and the outer shape of the casing 3, by welding the terminal reinforcing portion 17 to the substrate 5, two welding strengths can be lifted for each direction. . In other words, even if the terminal portion 自身5 itself is downsized, it is possible to ensure the welding strength of the front terminal portion 15a to the substrate 5A by the operation load generated by the operation of the button 2, and it is possible to reduce the size of the entire opening. In the present embodiment, the shape of the slit of the terminal reinforcing portion 17 is substantially semicircular, but a plurality of shapes such as a triangle or a polygonal material may be formed. Although the embodiment of the present invention has been described above, the application of the present invention is not limited to the embodiment, and it is of course applicable to various forms within the scope of the technical idea. In the present embodiment, the shape of the casing 3 is substantially square. However, the shape of the casing 3 is not limited to this embodiment, and the shape of each of the contact portions 10 can be accommodated, and the bottom portion is substantially circular. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view of a push button switch in the present embodiment. Figure 2 is a front view of the push button switch. Figure 3 is a bottom view of the push button switch. Fig. 4 is a cross-sectional view of the Α·Α line of Fig. 1; Fig. 5 is a front elevational view showing the shape of a fixed contact in the embodiment. Fig. 6 is an enlarged view showing a periphery of a terminal portion of Fig. 3; 7(a) and 7(b) are cross-sectional views showing a state in which a terminal is mounted on a substrate. Fig. 8 is a cross-sectional view showing a shape of a terminal which is different from the present embodiment. Fig. 9 is a plan view showing the opening of the button in the second embodiment. Figs. 10(a) and 10(b) are plan views showing the formation of the terminal reinforcing portion in the second embodiment. Fig. 11 is a cross-sectional view showing a front terminal in which a terminal reinforcing portion is formed. Fig. 12 is a cross-sectional view showing a state in which a front terminal in which a terminal reinforcing portion is formed is mounted on a substrate. Fig. 13 is a plan view showing a push button switch in a third embodiment. Figs. 14(a) and 14(b) are plan views showing the formation of the terminal reinforcing portion in the third embodiment. Fig. 15 is an enlarged plan view showing a terminal portion of the push button switch in the fourth embodiment. 106821.doc -18- 1291187
【主要元件符號說明】 1 按 4a 開關（switch) 2 按紐 2a 接觸部 3 殼體（housing) 4 側面 5 下面 10 接點部 11 固定接點 12 中央固定接點 12c 前連接片 13 周邊固定接點 13c 後連接片 14 可動接點 15 端子部 15a 前端子部 15b 後端子部 16 焊接面 17 端子補強部 18 折曲線 19 空間部 20 前端角部 21 側部 22 側板 106821.doc -19· 1291187 23 階梯部 24 露出面 40 焊錫 50 基板[Main component symbol description] 1 Press 4a switch (switch) 2 button 2a contact part 3 housing 4 side 5 lower 10 contact part 11 fixed contact 12 central fixed contact 12c front connecting piece 13 peripherally fixed Point 13c Rear connecting piece 14 Movable contact 15 Terminal part 15a Front terminal part 15b Rear terminal part 16 Welding surface 17 Terminal reinforcing part 18 Folding curve 19 Space part 20 Front end corner 21 Side part 22 Side plate 106821.doc -19· 1291187 23 Step portion 24 exposed surface 40 solder 50 substrate
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