1229358 玖、發明說明： 【發明所屬之技術領域】1229358 发明 Description of the invention: [Technical field to which the invention belongs]
本發明係關於按知卩卩M 、碣關，更詳細地說係關於在行動電 話、遊戲機、各種音燮今 曰。又備#的基板上進行表面安裝的 型、薄型按紐開關。 【先前技術】 過去，行動電話和遊戲機'各種音響設備等所使用的操 關有例士才木用專利文獻1所述的按叙開關。此種按紐開 關通常在用絕緣樹脂#开彡& • 寺$成的外设上設置中央固定接點和 外側固定接點，在這4b固 二 疋接』的上部設置圓頂狀可動接 點並使其能與外側固定接點相搭接。並且，各固定接點在 兩側具有延長的連接片，在該連接片的兩端上設置向外部 露㈣連接端子。該連接端子從連接片的兩端向下彎曲， 其所端大致上與外殼的下面相平行。並且，連接端子的端 部向上幫曲。 如此構成的按-開關，通過從上方按壓圓頂狀可動接 來使可動接點與中央固定接點相接觸，形成導通，產 生開關作用。並且’有時根據使用方式的不同，也在可動 接點的上部設置呈有子百定： 百預足形狀的刼作鈕，使按壓操作容易 進行。 專利文獻1特開2001-110273號公報 此種按紐開關，連接端子的端部被固定在基板（印刷電路 ,)上二固定時通常使用把焊錫粉末和助焊劑混合而製成的 焊錫膏m開關在基板上進行固定時，在基板上的按 1229358 紐開關的固定部分上 、s Γ危 秋汗吻寻層，通常的厚度爲 合士〜左右，在其上面佈置按鈕開關，從上面按壓， 才疋使其通過回流焊設備而進行焊接，如此使按紐 開關的連接端子的端邻盥美叔相处人 ^ 鳊°卩/、基板相結合，從而把按鈕開關固 疋在基板上。 、成年卩返著行動電治、遊戲機、便攜音響設備等 ::型化薄型化’其中所使用的按鈕開關正在小型化和 一， 田⑷按鈕開關能形成0_5 mm以下的厚度。但是， 心^開@如上所述’由於被按壓到焊錫膏上進行臨時固 —处焊錫β也進人到連接端子的下面i，其結果使得設置 狀怨的冋度尺寸增大，該增加量相當於進人到該連接端子 下=上㈣錫膏的量（厚度）。如此，進入到連接端子下面上 的焊錫T的厚度，其最大值成爲焊錫膏的塗敷厚度，並且， 如上所述，焊錫f的塗敷厚度通常爲G.1G〜G.15 mm左右， 斤、該厚度即使與按紐開關的厚度相比也是不能忽略的。 亚且，在連接端子部分上按鈕開關佈置在上方，向上的 里相*於進入到連接端子下面的焊錫膏的厚度，所以外殼 的下面不與基板相搭接，而是向上浮起，使按鈕開關的設 置狀態不穩定。因此，對按鈕開關按壓操作時，按鈕開關 的中央部産生彎曲，並且設置高度産生誤差。㈣，也可 能在臨時固定時被按壓的焊錫膏進入到外殼的下面上，也 可能在基板上産生焊錫球飛散。 【發明内容】 本發明是鑒於以上問題而提出的，其目的在於提供一種 ^29358 在固定到基板上時能使 焊錫膏的厚度那麼大， 開關。 設置狀態的高度尺寸增加量不會像 同時能保持穩定的設置狀態的按鈕 爲了解決上述問題，從么士播 仗、，、。構上本發明的按鈕開關， '·、邑緣材料構成的外殼内設置 1」助接點、固疋接點以及盥 固疋接點相導通的連接總； 連接^子，利用焊錫膏將該連接端子图 定到基板上，該按紐開關，“子固 哪，、符徵在於·在上述外殼的下 面設置從上述連接端子的下 . ^子的下面起向下突出的臺階，利用該 量階在上述連接端子& I t &二、u • ^子的下方形成嬋錫膏收容部，並且使上 述外殼的下面成爲與上述基板的接觸面。 、，若採用本發明’職把焊料㈣料錫f收容部内， 並且，外殼的下面與基板相接觸。 並且’本發明，其特徵在於：上述外殼的臺階形成的尺 了大於連接端子固定時所使用的焊錫膏的粒徑、小於焊錫 T的塗敷厚度。 、 若採用本發明，龍抑料殼τ㈣浮起，同時能牢固 料接連接端子，並且能_按_關在基板上的設置狀 怨下的高度尺寸在較低的程度。 上述外殼的 再者，從結構上看，本發明，其特徵在於·· 臺階形成爲0·03 mm以上〇·1〇 mm以下。 若採用本發明，則能更切實地抑制外殼下面的浮起，同 時能牢固地焊接連接端子，並且能將按紐開關在基板上的 設置狀態下的高度尺寸控制在較小的程度。 【實施方式】The present invention relates to the press M, Tongguan, and more specifically to mobile phones, game consoles, and various audio devices. Also available are surface-mounted, low-profile pushbutton switches on the # substrate. [Prior Art] In the past, operations for mobile phones, game consoles, various audio devices, and the like have been described in accordance with Patent Literature 1, for example. This type of button switch is usually provided with a central fixed contact and an external fixed contact on the peripheral device made of insulating resin. A dome-shaped movable connection is provided on the upper part of the 4b fixed two connection. Point and make it overlap with the outer fixed contact. Further, each fixed contact has extended connecting pieces on both sides, and connection terminals exposed to the outside are provided on both ends of the connecting piece. The connection terminal is bent downward from both ends of the connection piece, and its end is substantially parallel to the lower surface of the housing. Also, the ends of the connection terminals buckle upward. In the thus constructed push-switch, the dome-shaped movable contact is pressed from above to bring the movable contact into contact with the central fixed contact, thereby establishing conduction, and a switching action is generated. In addition, depending on the use method, a button with a shape of 100% is also provided on the upper part of the movable contact to make pressing easier. Patent document 1 JP 2001-110273 is a push-button switch in which the ends of the connection terminals are fixed on a substrate (printed circuit), and a solder paste made by mixing solder powder and flux is generally used for fixing. When the switch is fixed on the substrate, on the fixed part of the button on the substrate, press the button 1229358, the s Γ qi Qiuhan kisses the layer, usually the thickness is about ~ ~, put a button switch on it, press from above, Only then can it be soldered by reflow soldering equipment, so that the end of the connection terminal of the button switch can get along with each other ^ 卩 ° / / substrate, so that the button switch is fixed on the substrate. Adults are returning to mobile TV, game consoles, portable audio equipment, etc. :: Thinning and thinning ’The push-button switches used in them are being miniaturized. One, Tianye push-button switches can form thicknesses below 0_5 mm. However, since the heart is pressed onto the solder paste for temporary fixation, the solder β also enters the lower surface of the connection terminal i, and as a result, the size of the installation pattern is increased, and the increase amount It is equivalent to entering the lower part of the connection terminal = the amount of solder paste (thickness). In this way, the maximum thickness of the solder T entering the lower surface of the connection terminal becomes the coating thickness of the solder paste, and, as described above, the coating thickness of the solder f is usually about G.1G to G.15 mm, catties 2. This thickness cannot be ignored even when compared with the thickness of a button switch. On the connection terminal part, the push button switch is arranged on the upper side, and the upward phase is equal to the thickness of the solder paste that enters below the connection terminal. The setting status of the switch is unstable. Therefore, when the push button switch is pressed, the central portion of the push button switch is bent, and an error occurs in the setting height. Alas, the solder paste that was pressed during temporary fixation may enter the lower surface of the housing, and the solder balls may be scattered on the substrate. [Summary of the Invention] The present invention is made in view of the above problems, and an object thereof is to provide a switch capable of making the thickness of solder paste as large as possible when it is fixed to a substrate. The height increase in the setting state will not be like a button that can maintain a stable setting state at the same time. In order to solve the above problems, broadcast the war from Morse. The button switch of the present invention is constructed, and the connection of the auxiliary contact, the solid contact, and the solid contact is connected in a housing made of a material made of yam margin material. The connection terminal map is fixed to the substrate. The button switch, "Zigu,", and the sign lies in. · A step protruding downward from the bottom of the above-mentioned connection terminal is provided under the above casing. Use this amount A solder paste accommodating portion is formed under the above-mentioned connection terminal & II, and the lower surface of the casing is a contact surface with the substrate. If the present invention is used, The solder f is contained in the housing, and the lower surface of the casing is in contact with the substrate. The present invention is characterized in that the step formed by the steps of the casing is larger than the diameter of the solder paste used for fixing the connection terminal and smaller than the solder The coating thickness of T. If the present invention is adopted, the long-suppressing material shell τ㈣ floats, and at the same time, the connection terminals can be firmly connected, and the height and size under the setting of the substrate on the substrate can be lowered to a lower degree. On Furthermore, the present invention is characterized in that, from a structural point of view, the present invention is characterized in that the steps are formed to a diameter of 0.03 mm or more and 0.1 mm or less. According to the present invention, the floating under the casing can be more reliably suppressed. At the same time, the connection terminals can be firmly soldered, and the height dimension of the button switch on the substrate can be controlled to a small degree. [Embodiment]
O:\88\88537.DOC 1229358 、/…、附圖，徉細說明本發明的實施方式。首先，說 明第1實施方式。圖1是本發明第1實施方式的按知開關的俯 ^圖圖2、圖3分別是圖！的入及斷面圖和Β_β斷面圖，圖* 疋本毛月第1貫施方式的按鈕開關的後視圖，圖$是圖3的連 接端子周圍的放大圖，圖6是表示本發明&實施方式的按 紐開關在基板上的安裝狀態的圖。 声、也方式的按紐開關1，如圖j、圖2所示，在由絕緣樹 脂成形的上方開口凹狀的大致方形的外殼10内，設置了·· 金屬板制吟中央固定接點2 i，其中具有被加工成凸狀的、 爲圓幵y的中央接觸部2 1 a ;以及金屬板制的外側固定接 點22，其中具有在對前者進行夾持的對稱位置上，同樣地 被加工成凸狀的大致爲矩形的外側接觸部22a、22a。 並且，中央固定接點21、如圖1、圖3所示，具有：與中 央接觸部21a相導通、向著外殼1〇的側面直線延伸的中央連 結部21b、以及與該中央連結、部21b大致直交並導通，向外 殼10的兩側方向直線延伸的連接片2 i c。同樣，外側固定接 點22具有與各外側接觸部22a、與22a相導通，向著與中央 連結部21b相反的方向延伸的外側連結部22b、22b、以及與 外側連結部22b、22b相導通並向外殼1 〇的兩侧方向直線延 伸的連接片22c。各連接片21c、22c設置成基本上互相平行 的狀態。而且，各固定接點21、22被鑲嵌成形並固定在外 殼10的内底面上，使上述中央接觸部21a、外側接觸部22a 露出來。並且’在各連接片21c、22c的兩端分別設置從外 殼10的下面12的四角的角部η中突出的露出來的連接端子 1229358 23。該連接端子23從連接片21c、22c的兩端向下彎曲，其 w端大致上與外殼10的下面12相平行，並且，連接端子23 的端部2 3 a向上方彎曲。 並且’外殼1 0的側面的連接端子23突出的部分，如圖} 所不’形成缺口形狀，以便將連接端子23儘量佈置在内側。 如此，在用浑錫膏50來焊接連接端子23時，能把焊錫膏5〇 塗敷在更靠近内側，所以，能減小當按鈕開關1在基板60上 進行平面女裝時的專用面積，能提高在基板6〇上的安裝密 度。 而且’在本貫施方式中，外殼1〇大致上呈方形。但是， 並非僅限於此，例如也可以是圓形等其他形狀。並且，連 接端子23的端部23a向上方彎曲，但不一定要如此彎曲，也 可以使端部23 a保持直線形狀。 在此，外殼10如圖4、圖5所示，在下面12的角部U以外 的P刀即不與連接端子23相關連的連接片21c、22c的埋 σ又保持部分内，設置一種從連接端子23的下面23b向下突出 的臺階13。也就是說，形成了下面12的不與連接端子^相 連的。卩分，以使其在比連接端子23的下面23b更靠下方處有 個面。而且，希望該臺階13形成〇 〇3 mm以上〇1〇以 下並且，通過設置該臺階13而相對地在連接端子23的下 方形成焊錫膏收容部14。 在此在本貫施方式的按紐開關丨的安裝中，採用表面安 衣方去進行安裝，即在預定位置上預先塗敷了焊錫膏的 基板60上，用焊錫膏5〇來臨時固定按鈕開關丨，使其通過回 1229358 流焊接設備内，利用紅 ^ ^ ^ S…、風使焊錫膏50熔化凝固。 在進订此種表面安奘主 14,, 女衣4，由於形成上述焊錫膏收容部 J 4如圖6Α、Β所示，扣始j 焊錫Μ… 把杈鈕開關1臨時固定在基板60上的 厚錫Θ 50上日卞，在該焊 月收谷邛14内收容焊錫膏50 ,所 乂，知鈕開關！不會受焊錫 J〜^而破佈置在比預定位 置南的上方，同時外殼1〇 卜面12與基板60相接觸，按鈕 開關1的佈置狀態穩定。 月匕牛罪地進行焊接，同時即 使把按紐開關1按塵到谭錫膏〜 古 月0上臣πσ時固疋，也能抑制焊錫 言50進入和比焊錫膏收容部“更靠内側的外㈣的下面 12’或向周圍飛散；能防止回流焊時按紐開關！的下面η從 基板60上浮起；也能抑制焊錫球的發生。 並且，由於具有該焊錫膏收容部14，所以，形成外殼1〇 時下面12的氣體容易排出，能保持很高的轉印精度，能提 高下面12的精度。 在此，如上所述，把臺階丨'3製作成〇〇3 mm以上〇i〇mm 以下疋因爲一身又焊錫貧内所含有的焊錫粉末粒徑爲〇 · 〇 i mm〜0·03 mm，如果臺階爲0 〇3 mm以下，那麼焊錫粉末的 粒徑大於臺階13，造成設置狀態不穩定。並且，考慮到焊 錫T50通常塗敷〇.1〇 mm〜〇15 mm的厚度，如果臺階爲〇 1〇 mm以上，那麼臺階π大於焊錫膏5〇的塗敷厚度，當把按鈕 開關1佈置在基板60上時，連接端子23的下面23b有可能不 與焊錫膏50相接觸。也就是說，通過把臺階13形成在〇〇3 mm以上0.10 mm以下’能切實防止外殼1〇的下面12浮起， 安裝後也能使基板60和下面12相接觸。同時能牢靠地焊接 1229358 連接端子23。並且，也能減小設置狀態下的高度尺寸。即 使在採用端部23a爲直線狀的連接端子23的情況下，也能同 樣地獲得上述效果。 但是，該臺階Π的0.03 mm以上0·10 下的條件並非 僅限於此，也可以根據焊錫膏5〇中所含有的粉末的粒徑和 焊錫膏50的塗敷厚度來自由地進行調整。 亚且，外殼10如圖1、B 2所示具有金屬薄板制的圓頂狀 的彈性可動接點30,其佈置狀態是外周下端與外側固定接 點22的外側接觸部22a相搭接，再者，下面塗敷了枯合劑的 具有撓性的大致爲圓形的絕緣薄膜4〇被固定成對外殼_ 上面開口部進行遮蓋的狀態，該絕緣薄膜4〇也固定在可動 接點3〇的中央頂點部術上，把半圓球狀的可動接點30保持 在外殼1〇内的預定位置上，同時，防止粉塵、助焊劑等侵 入到開關接點部分上。又，太營·大么士 ju、上 — < 本貫苑方式把可動接點30的形 狀設定爲圓形，但並非特別限定爲此，例如也可以採用八 角形，方形等其他形狀。絕緣薄膜4〇亦同。 以下詳細說明本實施方式的独開關1的動作。按紐開關 1利料錫㈣把連接料坪接在職的佈線部上，從而 固定在基板60的預定位置上。在如此被固定在基㈣上的 按姐㈣⑽從錢與已焊接的基板6〇相垂 直的上方向下按壓’通過具有撓性的絕緣薄臈40向下按麼 圓頂狀的可動接㈣的中央頂點㈣a。並且，當該㈣力 達到-疋值時，可動接點3G進行反轉動作，使1中 部30a的裏面接觸到設置在外殼1〇 、 ‘” J r天固疋接點2 1的 1229358 中央接觸部21a上。 如此，中央固定接點21和外側固定接點22通過圓頂狀可 動接點30進行導通，變成開關接通的狀態，與各個連接端 子23相連接的基板6〇的與定的佈線部之間導通。 然後，若去除對絕緣薄膜4〇的按壓力，則半圓球狀的可 動接點30依靠本身的彈性恢復力而恢復到原來狀態，返回 到開關斷開的狀態。 在本貫施方式的按鈕開關丨中，雖如此從大致上與焊接的 基板60相_直的上方接受反復的按壓荷重，但因爲外殼1〇 的下面12與基板60相搭接，所以在按鈕開關工的中央部不會 産生有害的撓曲。 曰 在此，說明了直接按壓絕緣薄膜4〇的情況。但也可以根 據使用方式的不同，爲便於進行按壓操作而在絕緣薄膜仙 的上部设置具有預定形狀的操作紐，通過該操作紐和絕緣 薄膜40來按壓可動接點3〇。、 以下祝明第2實施方式。圖7是本發明第2實施方式的按鈕 開關的俯視圖，圖8、圖9分別是圖7的八卒斷面圖和B_B斷 面圖，圖10是本發明第2實施方式的按鈕開關的後視圖；圖 11疋圖9的連接端子周圍的放大圖；圖12是本發明第2實施 方式的按紐開關在基板上的安裝狀態圖。 本貫施方式的按紐開關丨，如圖7、圖8所示，在由絕緣樹 脂成形的上方開口凹狀的大致方形的外殼1〇内，設置了 ·· 金屬板制的中央固定接點21，其中具有加工成凸狀的、大 致爲圓形的中央接觸部21^以及金屬板制的外側固定接點O: \ 88 \ 88537.DOC 1229358,…, and the drawings, the detailed description of the embodiments of the present invention. First, the first embodiment will be described. Fig. 1 is a top view of a push switch according to a first embodiment of the present invention. Figs. 2 and 3 are diagrams, respectively! A cross-sectional view and a cross-sectional view of β_β, FIG. * The rear view of the push switch of the first implementation mode of the present month, FIG. $ Is an enlarged view around the connection terminal of FIG. 3, and FIG. A view of the state of mounting the push button switch on the substrate according to the embodiment. As shown in Figures j and 2, an acoustic button switch 1 is provided in a generally rectangular shell 10 with a concave upper opening formed by an insulating resin. A metal plate fixed central contact 2 is provided. i, which has a central contact portion 2 1 a which is processed into a convex shape and is a circle y; and an outer fixed contact 22 made of a metal plate, which has a symmetrical position for clamping the former and is similarly The substantially rectangular outer contact portions 22a, 22a processed into a convex shape. Further, as shown in FIGS. 1 and 3, the central fixed contact 21 includes a central connecting portion 21b which is in communication with the central contact portion 21a and extends linearly toward the side surface of the housing 10, and the central connecting portion 21b is substantially connected to the central connecting portion 21a. The connecting piece 2 ic that is orthogonal and conductive and extends linearly in the direction of both sides of the casing 10. Similarly, the outer fixed contact 22 has outer connecting portions 22a, 22b communicating with the outer contact portions 22a, 22a, and extending in a direction opposite to the central connecting portion 21b, and communicates with and communicates with the outer connecting portions 22b, 22b. The connecting pieces 22c extending linearly in the both sides of the casing 10. The connecting pieces 21c and 22c are arranged in a substantially parallel state. Each of the fixed contacts 21 and 22 is insert-molded and fixed to the inner bottom surface of the outer case 10 so that the central contact portion 21a and the outer contact portion 22a are exposed. And, at both ends of each of the connection pieces 21c and 22c, exposed connection terminals 1229358 23 protruding from corner portions η of the four corners of the lower surface 12 of the housing 10 are provided. The connection terminal 23 is bent downward from both ends of the connection pieces 21c and 22c, the w-end thereof is substantially parallel to the lower surface 12 of the housing 10, and the end portion 23a of the connection terminal 23 is bent upward. And the protruding portion of the connection terminal 23 on the side of the 'housing 10 is formed as shown in the figure], so that the connection terminal 23 is arranged inside as much as possible. In this way, when the connection terminal 23 is soldered with the mud solder paste 50, the solder paste 50 can be applied closer to the inside, so that the dedicated area when the button switch 1 is used for flat women's clothing on the substrate 60 can be reduced. It is possible to increase the mounting density on the substrate 60. Further, in the present embodiment, the casing 10 is substantially square. However, it is not limited to this, and other shapes, such as a circle, may be sufficient, for example. Further, the end portion 23a of the connection terminal 23 is bent upward, but it is not necessary to be bent in this way, and the end portion 23a may be kept in a straight shape. Here, as shown in FIG. 4 and FIG. 5, in the housing 10, P blades other than the corner U of the lower surface 12, that is, the buried σ of the connection pieces 21 c and 22 c that are not associated with the connection terminal 23, are held in the retaining portion. The lower surface 23b of the connection terminal 23 protrudes downward. That is, the following 12 are not connected to the connection terminal ^. Divide it so that it has a surface lower than the lower surface 23b of the connection terminal 23. Further, it is desirable that the step 13 is formed to have a size of not less than 0.03 mm and not more than 100, and that the step 13 is provided so as to relatively form a solder paste containing portion 14 below the connection terminal 23. Here, in the installation of the push button switch in this embodiment, the surface is used for installation, that is, the substrate 60 coated with solder paste at a predetermined position in advance, and the button is temporarily fixed with solder paste 50. Switch 丨 to pass it back to the 1229358 flow soldering equipment, and use the red ^ ^ S ..., wind to melt and solidify the solder paste 50. In order to fix such a surface, the main body 14 and the female clothes 4 are formed as described above. As shown in FIG. 6A and FIG. The thick tin Θ 50 is on the sundial, and the solder paste 50 is contained in the soldering month valley 14. So, the switch is known! It is not damaged by solder J ~ ^ and is arranged above the predetermined position south. At the same time, the housing 10 and the substrate 12 are in contact with the substrate 60, and the arrangement state of the push button switch 1 is stable. The moon dagger is soldered in a sinful way, and even if the button switch 1 is pressed to the Tan solder paste ~ when the ancient moon 0 sigma πσ is fixed, it can prevent the solder 50 from entering and “inside the solder paste storage section“ The lower surface 12 'of the outer sleeve may be scattered around; the bottom surface η of the push button switch during reflow can be prevented from floating from the substrate 60; and the occurrence of solder balls can be suppressed. Furthermore, since the solder paste containing portion 14 is provided, When the casing 10 is formed, the gas of the lower surface 12 is easily exhausted, which can maintain a high transfer accuracy and improve the accuracy of the lower surface 12. Here, as described above, the step ′ ′ 3 is made to have a size of 〇3 mm or more. Below mm, because the particle size of the solder powder contained in a solder paste is 〇 · 〇i mm ~ 0.03 mm, if the step is below 0 〇3 mm, then the particle size of the solder powder is larger than the step 13, causing the installation state In addition, considering that the solder T50 is usually applied with a thickness of 0.10 mm to 0.15 mm, if the step is more than 10 mm, the step π is greater than the thickness of the solder paste 50. 1 When arranged on the substrate 60, the connection terminal 2 The lower surface 23b of 3 may not be in contact with the solder paste 50. In other words, by forming the step 13 at not less than 0.003 mm and not more than 0.10 mm, the lower surface 12 of the housing 10 can be prevented from floating, and it can be made even after installation. The base plate 60 is in contact with the lower surface 12. At the same time, the 1229358 connection terminal 23 can be reliably welded. Also, the height dimension in the installed state can be reduced. Even when the connection terminal 23 having a straight end portion 23a is used, it can also be The above-mentioned effect is similarly obtained. However, the conditions under 0.03 mm and 0 · 10 of the step Π are not limited to this, and may be determined based on the particle diameter of the powder contained in the solder paste 50 and the coating thickness of the solder paste 50. The housing 10 has a dome-shaped elastic movable contact 30 made of a thin metal plate as shown in FIGS. 1 and B 2, and the arrangement state is the outer contact portion 22 a of the outer peripheral lower end and the outer fixed contact 22. They are overlapped. Furthermore, a flexible, substantially circular insulating film 40 coated with a desiccant is fixed to a state that covers the upper opening of the case _, and the insulating film 40 is also fixed to the movable Contact 3〇 During the operation of the central apex, the semi-spherical movable contact 30 is maintained at a predetermined position in the casing 10, and at the same time, dust, flux, and the like are prevented from entering the switch contact. Also, Taiying?士 ju 、 上 — < The Ben Guanyuan method sets the shape of the movable contact 30 as a circle, but it is not particularly limited to this. For example, other shapes such as an octagon and a square may be used. The same applies to the insulating film 40. The following The operation of the unique switch 1 in this embodiment will be described in detail. The push button switch 1 is used to connect the connection pad to the wiring portion on the job, and is fixed at a predetermined position on the substrate 60. Press down on the center of the dome-shaped movable connection ㈣a from the upper side of the money perpendicular to the soldered substrate 60 and press down through the flexible insulating thin 臈 40. In addition, when the force reaches the value of-, the movable contact 3G performs a reversing action, so that the inside of the middle portion 30a contacts the 1229358 center contact provided in the housing 10, "" J rTiangu contact 2 1 In this way, the central fixed contact 21 and the outer fixed contact 22 are conductively connected by the dome-shaped movable contact 30, and the switch is turned on. The substrate 60 connected to each connection terminal 23 is fixed. The wiring is electrically connected. Then, if the pressing force on the insulating film 40 is removed, the semi-spherical movable contact 30 is restored to its original state by its own elastic restoring force, and returns to the off state of the switch. In the push button switch according to the embodiment, although the repeated pressing load is received from directly above the soldered substrate 60, the lower surface 12 of the housing 10 is overlapped with the substrate 60, so the button switch works. There is no harmful deflection in the central part. It is explained here that the insulating film 40 is directly pressed. However, depending on the use method, it may be placed on the upper part of the insulating film to facilitate the pressing operation. An operation button having a predetermined shape is set, and the movable contact 30 is pressed by the operation button and the insulating film 40. The second embodiment is described below. FIG. 7 is a plan view of a push button switch according to a second embodiment of the present invention, and FIG. 8 Fig. 9 is a cross-sectional view of the eight strokes of Fig. 7 and a cross-sectional view of B_B. Fig. 10 is a rear view of the push button switch according to the second embodiment of the present invention. Figs. This is a diagram of the state of mounting the push button switch on the substrate according to the second embodiment of the present invention. As shown in FIG. 7 and FIG. Inside the square housing 10, a central fixed contact 21 made of a metal plate is provided, which has a central contact portion 21 which is processed into a convex shape and is substantially circular, and an outer fixed contact made of a metal plate.
O:\88\88537.DOC 1229358 22 ’其中具有在對前者進行夾持的對稱位置上，同樣地被 加工成凸狀的大致爲矩形的外側接觸部22a、22a。該等固 疋接點2 1、22被鑲嵌成形並固定在外殼1〇的内底面上。 並且，中央固定接點21，如圖1、圖3所示，具有：與中 央接觸部2 1 a相導通，向著外殼丨〇的側面直線延伸的中央連 結部21b、以及與該中央連結部21b大致直交並導通，向外 殼1〇的兩側方向直線延伸的連接片21c。同樣，外侧固定接 點22具有與各外側接觸部22 a、22 a相導通，向著與中央連 結部21b相乒的方向延伸的外側連結部22b、22b、以及與這 些外側連結部22b、22b相導通並向外殼1 〇的兩側方向直線 延伸的連接片22c。各連接片21c、22c設置成基本上互相平 行的狀態。並且，在各連接片21c、22c的兩端分別設置從 外殼10的下面12的四角的角部η中突出從而露出來的連接 端子23。 本實施方式的連接端子23從連接片21c、22c的兩端起直 接形成直線狀，大致上與外殼10的下面12相平行，並且， 連接端子23的端部23a向上方彎曲。 如此’即使是連接端子23從各連接片21c、22c的兩端起 叹置成直線狀的按紐開關1，也能適用本發明。即，本實施 方式的按鈕開關1，如圖1 〇、圖11所示，在下面丨2的角部丄i 以外的部分，即不與連接端子23相關連的部分上，設置一 種從連接端子23的下面23b向下突出的臺階13。即，形成了 下面12的不與連接端子23相連的部分，並使其在比連接端 子23的下面23b更罪下方處有一個面。而且，希望該臺階η 14 1229358 /、上述第1貝細方式一樣’形成在mm以上〇〗〇 mm以 下。 即使是連接端子23從各連接片21c、22c的兩端起設置成 直線狀的按鈕開關1，也能通過設置此種臺階13，相對地在 連接端子23的下方形成焊錫膏收容部14，如圖12八、6所 不，旎收容焊錫膏50。依此，按鈕開關1不會受焊錫膏50的 影響而被設置在比預定位置高的上方，同時，外殼ι〇的下 面12與基板60相接觸，使按鈕開關i的佈置狀態穩定。 亚且，如此即使是連接端子23從各連接片21c、2以的兩 端起設置成直線狀的按鈕開關丨也能整體厚度減薄。 圖8所示，具有金屬薄板制的圓頂 下面塗敷了粘合劑的具有撓性的 再者，外殼10如圖7、 狀的可動接點30，並且 八角形絕緣薄膜4G被固定成對外殼1G的上面開口部進行遮 蓋的狀態。 而且，關於按紐開關與上述第⑸施方式相同， 故在此其說明從略。 以上根據附圖說明了本發明的實施方式。但是’本發明 並非僅限於域實施方式所述的事項，而是能根據權利要 求書所述進行更改和改進。彳I ‘ 運例如，上述實施方式中對連掮 端子從外殼的角部露出的接4 路的钕鈕開關進行了說明，但對於從 其他部分、例如連接端子從外殼 「"又側方中間露出的按鈕開i 也能適用。 【發明的效果】 若採用上述本發明，則在外殼 又的下面設置從連接端子1 15 1229358 面向下突出的臺階，利用該臺階在連接端子下方形成焊錫 T收容部，同時把外殼的下面作爲與上述基板的接觸面， 所以，能把焊錫膏收容到該焊錫膏收容部内，因此，在連 接端子的位置上按鈕開關也不會被佈置在尺寸量爲焊錫膏 T敷厚度的上方位置上，同時，外殼的下面與基板相接觸， 按鈕開關的佈置狀態穩定。並且，能牢固地進行焊接，也 能抑制焊錫球的發生。 亚且，若採用本發明，則能使形成的外殼的臺階大於連 接端子的固定所使用的焊錫膏的粒徑，小於焊錫膏塗敷層 的厚度，所以，烊錫膏的顆粒能被收容 能抑制外殼的下面浮起，同時能可靠地谭接連接：:内並 且，能將按鈕開關在基板上的設置狀態下的高度尺寸控制 在較小的程度。 再者，若採用本發明，則使外殼的臺階形成爲〇〇3麵以 上0.10 mm以下，所以能更可.靠地抑制外殼下面的浮起，同 時能牢固地焊接連接端子，並且，能將按㈣關在基板上 的6又置狀態下的高度尺寸控制在較小的程度。 【圖式簡單說明】 圖1是本發明第1實施方式的按鈕開關的俯視圖。 圖2是圖1的A-A斷面圖。 圖3是圖1的B-B斷面圖。 圖4疋本發明第1實施方式的按鈕開關的後視圖。 圖5是圖3的連接端子周圍的放大圖。 圖6 A 6B疋表不本發明第i實施方式的按紐開關在基板O: \ 88 \ 88537.DOC 1229358 22 ′ includes the outer contact portions 22 a and 22 a which are similarly processed into a convex shape at a symmetrical position for clamping the former. The fixed contacts 2 1 and 22 are insert-molded and fixed on the inner bottom surface of the casing 10. Further, as shown in FIGS. 1 and 3, the central fixed contact 21 includes a central connecting portion 21b which is in communication with the central contact portion 2a and extends straight toward the side surface of the housing, and the central connecting portion 21b. The connecting pieces 21c are substantially orthogonal to each other and are conductive, and extend linearly toward both sides of the case 10. Similarly, the outer fixed contact 22 has outer connecting portions 22b, 22b which are in communication with the respective outer contact portions 22a, 22a, and extend in a direction pinging with the central connecting portion 21b, and are connected to these outer connecting portions 22b, 22b. The connecting piece 22c which is conductive and extends linearly to both sides of the casing 10. The connecting pieces 21c and 22c are arranged in a substantially parallel state. Further, at both ends of each of the connection pieces 21c and 22c, connection terminals 23 protruding from corner portions η of the four corners of the lower surface 12 of the case 10 are exposed, respectively. The connection terminal 23 of this embodiment is formed in a straight line directly from both ends of the connection pieces 21c and 22c, and is substantially parallel to the lower surface 12 of the housing 10. The end portion 23a of the connection terminal 23 is bent upward. In this way, the present invention can be applied to the push button switch 1 in which the connection terminals 23 are linearly arranged from both ends of each of the connection pieces 21c and 22c. That is, as shown in FIG. 10 and FIG. 11, the push button switch 1 of this embodiment is provided with a slave connection terminal on a portion other than the corner portion 丄 i of the lower surface 2, that is, a portion not connected to the connection terminal 23. The lower surface 23b of the step 23 projects downward. That is, the portion of the lower surface 12 which is not connected to the connection terminal 23 is formed so that it has a surface below the sinusoidal surface 23b of the connection terminal 23. Further, it is desirable that the step η 14 1229358 / is the same as the above-mentioned first bevel pattern, and is formed at a size of mm or more and 0 mm or less. Even if the connection terminal 23 is provided with a linear push button switch 1 from both ends of each of the connection pieces 21c and 22c, the step 13 can be provided to relatively form a solder paste containing portion 14 below the connection terminal 23, such as As shown in FIGS. 12A and 6B, the solder paste 50 is contained. Accordingly, the push button switch 1 is not placed above the predetermined position without being affected by the solder paste 50, and at the same time, the lower surface 12 of the housing ι is in contact with the substrate 60, so that the arrangement state of the push button switch i is stable. In addition, even if the connection terminal 23 is provided with the linear push button switches 丨 from both ends of each of the connection pieces 21c, 2, the overall thickness can be reduced. As shown in FIG. 8, an adhesive is applied to the bottom of the dome made of a thin metal plate, and the housing 10 has a flexible contact 30 as shown in FIG. 7, and the octagonal insulating film 4G is fixed in pairs. The upper opening of the case 1G is covered. In addition, the button switch is the same as the above-mentioned first embodiment, so its description is omitted here. The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the matters described in the domain embodiment, but can be modified and improved as described in the claims. For example, in the above-mentioned embodiment, the 4-way neodymium button switch exposed from the corner of the housing of the flail terminal was described. However, for other parts, such as the connection terminal from the housing, "" The exposed button opening i can also be applied. [Effects of the invention] According to the present invention, a step protruding downward from the connection terminal 1 15 1229358 is provided under the casing, and a solder T is received under the connection terminal by using the step. At the same time, the lower surface of the shell is used as the contact surface with the substrate. Therefore, the solder paste can be stored in the solder paste accommodating portion. Therefore, the button switch will not be arranged in the size of solder paste at the position of the connection terminal. At the same time, the top of the cover is in contact with the substrate, and the arrangement of the push button switches is stable. Furthermore, it can be firmly welded and the occurrence of solder balls can be suppressed. Also, if the present invention is used, The step of the shell can be made larger than the particle diameter of the solder paste used for fixing the connection terminals, and smaller than the thickness of the solder paste coating layer. Therefore, the particles of solder paste can be contained, which can suppress the floating under the shell, and can be reliably connected at the same time: inside, and can control the height size of the button switch on the substrate to a small degree In addition, if the present invention is adopted, the steps of the casing are formed to have a thickness of not less than 0.003 surface and 0.10 mm or less, so that the floating under the casing can be suppressed more reliably, and the connection terminals can be firmly welded. The height dimension in the 6-positioned state that is closed on the substrate is controlled to a small degree. [Brief Description of the Drawings] FIG. 1 is a plan view of a push button switch according to a first embodiment of the present invention. FIG. 2 is a view of FIG. AA sectional view. Fig. 3 is a BB sectional view of Fig. 1. Fig. 4 is a rear view of the push button switch according to the first embodiment of the present invention. Fig. 5 is an enlarged view around the connection terminal of Fig. 3. Fig. 6 A 6B 疋Shows that the push button switch according to the i-th embodiment of the present invention is on a substrate
O:\88\88537 DOC -16- 1229358 上的安裝狀態的圖。 圖7是本發明第2實施方式的按鈕開關 听關的俯視圖。 圖8是圖6的C-C斷面圖。 圖9是圖6的D-D斷面圖。 圖10是本發明第2實施方式的按鈕開關的後視圖。 圖Π是圖9的連接端子周圍的放大圖。 圖12A〜12B是表示本發明第2實施方式的按鈕開關在基 板上的安裝狀態的圖。 【圖式代奉符號說明】 1 按紐開關 10外殼 11角部 12下面 13臺階 14焊錫膏收容部 21中央固定接點 22 外側固定接點 23 連接端子 3 0可動接點 40絕緣薄膜 5〇焊錫膏 60基板O: \ 88 \ 88537 DOC -16- 1229358 Diagram of the installation status. Fig. 7 is a plan view of a push button switch in accordance with a second embodiment of the present invention. Fig. 8 is a sectional view taken along the line C-C in Fig. 6. Fig. 9 is a sectional view taken along the line D-D in Fig. 6. Fig. 10 is a rear view of a push button switch according to a second embodiment of the present invention. FIG. 9 is an enlarged view around the connection terminal of FIG. 9. 12A to 12B are diagrams showing a state in which a push button switch according to a second embodiment of the present invention is mounted on a substrate. [Illustration of Symbols in Drawings] 1 Button switch 10 Housing 11 Corner 12 Lower 13 Step 14 Solder paste storage 21 Central fixed contact 22 Outer fixed contact 23 Connection terminal 3 0 Movable contact 40 Insulating film 50 solder Paste 60 substrate
O:\88\88537.DOC -17-O: \ 88 \ 88537.DOC -17-