1309051 TW95063GC 22064twf. doc/t 九、發明說明： 【發明所屬之技術領域】 本發明疋有關於一種按鍵結構，且特別是有關於 具有指示性的按鍵結構。 裡 【先前技術】 、資訊通訊純高度發展的現代化資訊社會巾，電 置被廣泛地應用於各個領域中，比方說便利而輕巧的行^ 電話裝置廣泛地運用於人與人之間日常生活的溝通上 們能，著方便的行動電話裳置隨時隨地進行資訊交換、麵 驗分旱與意見溝通。而行動電話的進步更是依日千里，、斤 年來各式強大功能的行動電話陸續開發出，而使用者^ 及更造成產能急遽膨腸，因此在行動電話日趨普及二 =外财變化以及體積縮小化之趨勢下，如何能讓使 用者更方购作㈣行㈣話，便成為設狀重要課題。 圖1A為習知-射攜式f子裝置之外觀示意圖 1B為習知-種可攜式電子裝置各組件之爆炸圖。在此 例中，可攜式電子裝置是以一手機為例以作說明。於= 參考圖1A與圖1B’可攜式電子裝置1〇〇包括一上胃/ -按鍵模組120。按_組12G包含„塑膠按 价 -塑膠固定架(pl牆hGlde仰以及一橡 (mbber base)126。塑膠按鍵122是卡合於上芸u〇 〜 112内；塑膠固定架124是安裝於塑膠按鍵：之二：孔 橡膝底座126是安裝於塑勝固定架124之下方，γ 攜式電子裝置lGG之電路板(未顯示於圖巾人=可 T)上之金屬薄膜 1309051 TW95063GC 22064twf.doc/t 按鍵(metd dome)(未顯示於圖中），以輸出一相對應之按鍵 訊號。塑膠固定架m則是用來固定塑膠按鍵122與橡膠 底座126之相對位置以及增加按鍵模、组12〇之結構強度。 手機中的按鍵模組會因使用型態或設計的不同，而影 響到按鍵的尺寸。但是，按鍵本身的設計即會影響到使用 者操作上較利性。以下即針對折疊機以及全鍵盤手機， 來說明其按鍵設計上所衍生之問題點。 在全鍵盤手機的設計中，鍵盤的尺寸及其所佔的比例 須配合螢幕大小與整體的尺寸來作考量，所以在面積區域 限制而且在按鍵數又多的情形之下，單顆按鍵的尺 =相對就較小而相鄰按鍵的間距也相對較近，很容易按到 '、他按鍵’尤其對手大的人來說這樣的困擾更加地嚴重。 ，外，在摺$料翻設計巾，按鍵若設計為鋼琴 心你於按鍵是相軌置且按賴沒有_鋪分隔，所 的積較大，雖然如此’但是按鍵的觸發僅藉由按鍵 浐# 下方的—凸起(位於橡膠底座上）來觸發金屬薄膜 并，^際觸务區的範圍並不大(直徑約3麵的區域），因 恭二ί使用者按壓在觸發區範圍以外的部份，則無法觸 二至相按鍵，而造成按鍵失效的問題。 【發明内容】 發明之目的是提供一種按鍵結構，此按鍵結構可額 :面處設置-μ面’讓使用者可直接按壓此凸出面 作值觸發其下方之金屬薄膜按鍵，以避免使用者在操 、、，機之鍵盤時，容易產生的誤觸或按鍵反應失效的 1309051 TW95063GC 22064twf.doc/t 问題 為達上述或是其他目的，本發明提出— 適用於觸發配置於電路板上的金 鍵、、、。構 dome)，其包括-按鍵表層、—按鍵本體M:=etal :鍵本體設置於按鍵表層之下方，其中 ：二 接觸部及-容置孔。觸發件固定於按鍵本體n 在本=之-實關巾，上叙按鍵表層 ’ 在本發明之-實施例中，上述之按鍵表凸一出^ 材料所减，其㈣膠材料包括橡膠或聚碳酸酉旨㈣應 組成在本查明之一貫施例中，上述之按鍵本體是由橡膠所 在本發明之一實施例中，上述之 在本發日狀-實關t，±狀朗x料=孔 二卜周圍’且朝電路板之方向延伸’其中觸發件位= 構，適用於觸i配置於I:板:二:提種按鍵結 η-按鍵： 由"又，、有牙孔。按鍵本體設置於按鍵外殼之下方，其 有一接觸部，並於對應於穿孔之處具有—容 殼之穿孔中，且固定於按鍵本 孔之合置孔中’其中觸發件之一端係凸出於按鍵外殼之穿 在本毛明之-貫施例中，上述之按鍵外殼與觸發件形 7 1309051 TW95063GC 22064twf.doc/t 成一向上凸起之弧形表面。 在本發明之一實施例中，上述之按鍵外殼是由一塑膠 材料所組成，其中塑膠材料包括橡膠或聚碳酸酯(pc)。 在本發明之一實施例中，上述之按鍵本體是由橡膠所 組成。 在本發明之一實施例中，上述之觸I件為一橡膠柱。 在本發明之一實施例中，上述之接觸部設置於容置孔 之外周圍，且朝電路板之方向延伸，其中觸發件是位於接 觸部中。 ' 本發明因採用具有指示性的按鍵結構，而觸發件是位 於按鍵外殼之凸出部内（或是觸發件凸出於按鍵外殼穿孔 之外）’所以凸出部的位置可指示出有效觸發按鍵的區域， 因此使用者利用指尖對凸出部的觸感找到凸出部後即可有 效地觸發按鍵，如此，可避免使用者因為按壓的位置不當， 而導致按鍵反應失效的問題。 此外，使用者在操作按鍵時，最直接的方式就是利用 觸覺來感受按鍵表面之凹凸變化，所以按鍵上凸出的部份 對使用者來§兒具有很有效的指示效果，可以讓使用者直覺 地按壓在按鍵之凸出部份上面，所以即使是在按鍵間的間 距較近或是按鍵面積較小的情形下，使用者仍可按壓此凸 出面，以正確地找到按鍵的重心，而不會因為手指的位置 偏差而產生誤觸其他按鍵的情形。 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 1309051 TW95063GC 22064twf.doc/t 明如下。 【實施方式】 為解決習知技術中使用者在按壓手機之按鍵時可能因 按壓位置不正確，而造成誤觸或是按鍵反應失效的問題， 本發明疋於按鍵結構之表面處形成一凸出面，讓使用者可 直接按壓此凸出面，以帶動觸發件直接觸發位於其下方之 金屬薄膜按鍵’以輸出一按鍵訊號。如此，即可避免使用 者在操作傳統手機之鍵盤時，容易產生的誤觸或按鍵反應 失效的問題。 j 一實施例 圖2A為本發明第一實施例之按鍵結構各組件的爆炸 示思圖，圖2B為本發明弟一實施例之按鍵結構配置於電 路板上的剖面示意圖。請同時參考圖2A及圖2B，按鍵結 構200包括一按鍵表層210、一按鍵本體22〇以及一觸^ 件230。按鍵結構200是設置於一電路板4〇〇上方，以^ 發配置於電路板400上的金屬薄膜按鍵(metal d〇me)4i〇。 按鍵表層210可額外設置一凸出部212，在凸出部内 會形成一容置空間214，而按鍵表層21〇的材質可以為橡 膠或聚碳義(pc)等塑膠材料。按鍵本體22Q設置於按鍵 表層210之下方’並且由具有彈性的材質所組成，例如： 橡膠。此外，按鍵本體220具有—接觸部224以及一連接 部226，其中該接觸部224具有一容置孔似，且朝電路板 400之方向延伸。 觸發件230是位於按鍵本體220之容置孔222中。在 1309051 TW95063 GC 22064twf.doc/t 此實施例中，觸發件230為一橡膠柱，而接觸部似是設 置於觸發件23G之外周緣，以限制觸發件23()僅可垂直地 上下移動。如此一來，接觸部224可確保觸發件23〇不會 向左或是向右偏離。此外，觸發件23〇可藉由黏著等適^ 方式與按鍵本體22〇之連接部226相連接，而固定於容i 孔222中。此外，觸發件23〇與按鍵本體22〇 型之結構。 另外，觸發件230之一端則是延伸至前述之容置空 2H中，讓使用者在按遷凸出部212日寺，直接帶動觸ς; 230向下移動。 圖2C為使用者按壓圖2Β之按鍵結構後最終狀態的 面圖。請參照圖2C，當使用者按壓在按鍵表層21〇之凸 部212時，觸發件230會隨著凸出部212的帶動而向下移 動，在第一時間觸發金屬薄膜按鍵410之電極導通，進^ 送出一按鍵訊號。在第二時間，按鍵本體220之接觸部 亦會接觸到金屬薄膜按鍵410。在按壓的動作完成時，由 於施予的壓力已被移除，所以按鍵本體230會藉由彈性恢 復原狀，以帶動按鍵表層210恢復按壓前的位置，同時^ 接部226也會將觸發件230帶離金屬薄膜按鍵41〇，而讓 觸發件230回復到按廢前的位置。 由於觸發件230位於凸出部212内所形成的容置空間 214之處，所以使用者按壓凸出部212時即可確實帶動到 觸發件230並觸發金屬薄膜按鍵41〇，可避免習知技術中 因為沒按壓到按鍵重心造成按鍵失效的問題。此外，由於 10 jW95〇63GC 22064twf.doc/t 有凸出部212的存在，所以使用者在操作時可藉由對表面 凹凸變化的觸感，直覺地掌握按鍵的位置。因此，不會有 習知技術中因為按鍵之間的間距過近或是按鍵的面積過小 而造成按壓按鍵的偏差使得使用者誤觸其他按鍵的問題。 |二實施例 圖3A為本發明第二實施例之按鍵結構各組件的爆炸 圖，圖3B為本發明第二實施例之按鍵結構配置於電路板 上的剖面圖。請一併參照圖3A及圖3B，按鍵結構3〇〇包 括一按鍵外殼310、一按鍵本體320、一觸發件330。按鍵 結構300可配置於一電路板500上方。本實施例之按鍵結 構300與第一實施例之按鍵結構2〇〇相似，其差異在於以 按鍵外设310取代圖2A中的按鍵表層210,其餘相似構件 在此省略其介紹，。以下將僅針對重點差異的部份來做介 紹： 按鍵外殼310具有一穿孔312 ,雖然與按鍵表層 上具有一凸出部212不同，但是觸發件33〇之一端可凸出 於穿孔312之表面，且按鍵外殼31〇與觸發件23〇會形成 向上^起之弧形表面。此外，請參考圖3C ,圖3C為使 用者壓圖3B之按鍵結構後最終狀態的剖面圖，使用者 f按壓按鍵結構300時可直接按壓於觸發件33〇，在第一 日可，使得觸發件330直接下壓，以觸發電路板5〇〇上之金 膜^:鍵51G而輸出—按鍵訊號。在第二時間，按鍵本 體，會隨下壓的力量而形變並且使得接觸部似接觸 到金屬薄膜按鍵51〇。而在按壓完成後，同樣可藉由按鍵 1309051 TW95063GC 22064twf.doc/t 本體320的彈力，使得觸發件33〇回復成原來的狀態。 g雖然，按鍵結構20〇與按鍵結構300有部份差異，钽 是觸發件330之-端會凸出於按鍵結構3⑻之表面而形成 一=形之凸出面，與凸出部212有類似的功用，使用者只 要按，凸出面的部分即可有效地觸發按鍵，因此使用者可 以很容㈣確認觸發區的位置，科會按翻非觸發區， 造成按鍵失效。此外，使用者也同樣可以藉由對凸出面的 觸感’直覺地按壓在凸&面上，確實地觸發按鍵。 綜上所述，本發明之按鍵結構具有下列優點： ()由於使用者在按壓於按鍵上的凸出面時，即可右 效地觸發按鍵，而齡_ψ μ ^ 賴㈣按鍵訊號，所以使用者可以很明 的按鍵失關^ 了避疏壓於糊發區所造成 觸感S二者2作時’可藉由對按鍵結構上凸出面的 =較近或是按鍵面積較小的情形下，還== 偏差而產生誤觸其他按鍵的情形。扣料日位置的 脫離本發明之精神和範圍^ #可=3:，在不 =本發明之保護範園當視後附之申;專利範=者 【圖式簡單說明】 1309051 TW95063GC 22064twf.doc/t 圖1A為習知一種可攜式電子裝置的外觀示意圖。 圖1Β為習知一種可攜式電子裝置各組件的爆炸圖。 圖2Α為本發明第一實施例之按鍵結構各組件的爆炸 圖。 圖2Β為本發明第一實施例之按鍵結構配置於電路板 上的剖面圖。 圖2C為使用者按壓圖2Β之按鍵結構後最終狀態的剖 面圖。 圖3Α為本發明第二實施例之按鍵結構各組件的爆炸 圖。 圖3Β為本發明第二實施例之按鍵結構配置於電路板 上的剖面圖。 圖3C為使用者按壓圖3Β之按鍵結構後最終狀態的剖 面圖。 【主要元件符號說明】 100 :可攜式電子裝置 110 :上蓋 112 :破孔 120 :按鍵模組 122 :塑膠按鍵 124 :塑膠固定架 126 :橡膠底座 200、300 :按鍵結構 210 :按鍵表層 13 1309051 TW95063GC 22064twf.doc/t 212 :凸出部 214 :容置空間 220 :按鍵本體 222、322 :容置孔 224、324 :接觸部 . 226、326 :連接部 230、330 :觸發件 310 :按鍵外殼 > 312 :穿孔 400、500 :電路板 410、510 :金屬薄膜按鍵 141309051 TW95063GC 22064twf. doc/t IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a button structure, and more particularly to an indicative button structure. [Previous technology], modern information society, which is highly developed by information communication, is widely used in various fields. For example, convenient and lightweight devices are widely used in daily life between people. In communication, we can use the convenient mobile phone to exchange information and face the drought and exchange of opinions at any time and any place. The progress of mobile phones is still a thousand miles away. In the past few years, various mobile phones with powerful functions have been developed one after another, and users ^ and more have caused rapid production capacity, so the mobile phone is becoming more and more popular. Under the trend of downsizing, how to enable users to purchase (4) lines (4) more easily becomes an important issue. 1A is a schematic view showing the appearance of a conventional-portable f-sub-device. FIG. 1B is an exploded view of various components of a conventional portable electronic device. In this example, the portable electronic device is exemplified by a mobile phone. Referring to FIG. 1A and FIG. 1B', the portable electronic device 1 includes an upper stomach/key module 120. Press _ group 12G includes „plastic price-plastic holder (pl wall hGlde and mbber base 126. plastic button 122 is engaged in upper 芸u〇~112; plastic holder 124 is installed in plastic Button: The second: the hole rubber knee base 126 is mounted under the plastic win frame 124, the metal film of the γ portable electronic device lGG (not shown on the towel person = T) 1309051 TW95063GC 22064twf.doc /t button (not shown in the figure) to output a corresponding button signal. The plastic holder m is used to fix the relative position of the plastic button 122 and the rubber base 126 and to increase the button mode, group 12 The structural strength of the button. The button module in the phone will affect the size of the button depending on the type or design. However, the design of the button itself will affect the user's operation. The following is for folding. Machine and full keyboard mobile phone, to illustrate the problems arising from the design of the button. In the design of the full keyboard mobile phone, the size of the keyboard and its proportion must be considered in line with the size of the screen and the overall size, so in the face The product area is limited and in the case of a large number of buttons, the scale of the single button is relatively small and the spacing of the adjacent buttons is relatively close, so it is easy to press the ', he button' especially for the opponent. Said that this kind of trouble is more serious. In addition, in the fold of the material design design towel, if the button is designed as the piano heart, you are in the track and the button is not separated by _ shop, the product is larger, although so 'but The trigger of the button triggers the metal film only by the protrusion (located on the rubber base) under the button 浐#, and the range of the contact area is not large (the area of about 3 sides in diameter), because the user When the part outside the range of the trigger zone is pressed, the button of the phase is not touched, and the button is invalid. [Invention] The object of the invention is to provide a button structure, which can be set to - surface at the surface 'Let the user directly press the convex surface to trigger the metal film button underneath it to avoid the user's misunderstanding or button reaction failure when operating the keyboard, 1309051 TW95063GC 22064twf.doc/ t The problem is that for the above or other purposes, the present invention proposes - for triggering a gold key disposed on a circuit board, including a button surface layer, - a button body M: = etal: the key body is disposed at Below the surface of the button, there are: two contact portions and a receiving hole. The trigger member is fixed to the button body n. In the present embodiment, the button surface layer is in the embodiment of the present invention. In the embodiment of the present invention, the above-mentioned button body is made of rubber in an embodiment of the present invention, and the above-mentioned button body is composed of rubber or polycarbonate (4). In the present day---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Button knot η-button: by " again, with dental holes. The button body is disposed under the button housing, and has a contact portion, and has a hole in the hole corresponding to the hole, and is fixed in the hole of the button hole, wherein one end of the trigger member protrudes In the embodiment of the present invention, the button housing and the trigger member 7 1309051 TW95063GC 22064twf.doc/t form an upwardly convex curved surface. In an embodiment of the invention, the button housing is made of a plastic material, wherein the plastic material comprises rubber or polycarbonate (pc). In an embodiment of the invention, the button body is made of rubber. In an embodiment of the invention, the touch I member is a rubber column. In an embodiment of the invention, the contact portion is disposed around the accommodating hole and extends toward the circuit board, wherein the trigger member is located in the contact portion. The invention adopts an indicative button structure, and the trigger member is located in the protruding portion of the button housing (or the trigger member protrudes beyond the perforation of the button housing). Therefore, the position of the protruding portion can indicate the effective trigger button. Therefore, the user can effectively trigger the button by using the fingertip to find the protruding portion of the protruding portion, so that the user can avoid the problem that the button reaction fails due to improper pressing position. In addition, the most direct way for the user to operate the button is to use the touch to feel the unevenness of the surface of the button. Therefore, the protruding portion of the button has a very effective indication effect on the user, which can make the user intuitive. The ground is pressed on the protruding portion of the button, so even if the spacing between the buttons is relatively close or the button area is small, the user can press the protruding surface to correctly find the center of gravity of the button without A situation in which another button is accidentally touched due to a positional deviation of the finger. The above and other objects, features, and advantages of the present invention will become more apparent from the description of the appended claimsededededededededededededededededededededededededed [Embodiment] In order to solve the problem that the user may cause a false touch or a button reaction failure due to an incorrect pressing position when pressing a button of the mobile phone in the prior art, the present invention forms a convex surface at the surface of the button structure. The user can directly press the protruding surface to drive the trigger member to directly trigger the metal film button 'below the lower side to output a button signal. In this way, it is possible to avoid the problem that the user is liable to cause accidental touch or button response failure when operating the keyboard of the conventional mobile phone. 1A is an exploded view of the components of the key structure of the first embodiment of the present invention, and FIG. 2B is a cross-sectional view of the key structure of the embodiment of the present invention disposed on the circuit board. Referring to FIG. 2A and FIG. 2B simultaneously, the button structure 200 includes a button surface layer 210, a button body 22A, and a touch device 230. The button structure 200 is disposed above a circuit board 4, and is provided with a metal film button 4i disposed on the circuit board 400. The button surface layer 210 may be additionally provided with a protruding portion 212, and an accommodating space 214 is formed in the protruding portion, and the material of the button surface layer 21〇 may be a plastic material such as rubber or polycarbon (PC). The button body 22Q is disposed below the button surface layer 210 and is composed of a resilient material such as rubber. In addition, the button body 220 has a contact portion 224 and a connecting portion 226, wherein the contact portion 224 has a receiving hole and extends toward the circuit board 400. The triggering member 230 is located in the receiving hole 222 of the button body 220. In 1309051 TW95063 GC 22064twf.doc/t In this embodiment, the trigger member 230 is a rubber post, and the contact portion seems to be disposed on the periphery of the trigger member 23G to restrict the trigger member 23() from moving up and down only vertically. In this way, the contact portion 224 ensures that the trigger member 23 does not deviate to the left or right. In addition, the triggering member 23 can be fixed to the receiving hole 222 by being connected to the connecting portion 226 of the button body 22 by adhesive or the like. Further, the trigger member 23 is configured to be the same as the button body 22. In addition, one end of the triggering member 230 extends into the aforementioned accommodation space 2H, so that the user directly drives the touch panel at the bulge of the bulging portion 212; 230 moves downward. Fig. 2C is a plan view showing the final state after the user presses the button structure of Fig. 2; Referring to FIG. 2C, when the user presses the convex portion 212 of the button surface layer 21, the triggering member 230 moves downwards according to the driving of the protruding portion 212, and triggers the electrode of the metal film button 410 to be turned on at the first time. Enter ^ to send a button signal. At the second time, the contact portion of the button body 220 also contacts the metal film button 410. When the pressing action is completed, since the applied pressure has been removed, the button body 230 is restored to its original state by elasticity to drive the button surface layer 210 to resume the position before pressing, and the connecting portion 226 will also trigger the triggering member 230. Take the metal film button 41〇 away, and let the trigger member 230 return to the position before the waste. Since the triggering member 230 is located at the accommodating space 214 formed in the protruding portion 212, when the user presses the protruding portion 212, the triggering member 230 can be surely driven and the metal film button 41 触发 is triggered, which can avoid the prior art. The problem of button failure caused by not pressing the center of gravity of the button. Further, since 10 jW95 〇 63GC 22064 twf.doc/t has the presence of the projection 212, the user can intuitively grasp the position of the button by the touch of the surface unevenness during the operation. Therefore, there is no problem in the prior art that the deviation of the pressed keys causes the user to accidentally touch other keys because the spacing between the keys is too close or the area of the keys is too small. 2 is an exploded view of the components of the key structure of the second embodiment of the present invention, and FIG. 3B is a cross-sectional view showing the key structure of the second embodiment of the present invention disposed on the circuit board. Referring to FIG. 3A and FIG. 3B together, the button structure 3 includes a button housing 310, a button body 320, and a trigger member 330. The button structure 300 can be disposed above a circuit board 500. The key structure 300 of the present embodiment is similar to the key structure 2A of the first embodiment, with the difference that the key surface layer 210 of FIG. 2A is replaced by the key peripheral 310, and the rest of the similar components are omitted here. The following description will be made only for the difference of the key points: The button housing 310 has a through hole 312, and although it has a protrusion 212 on the surface of the button, one end of the trigger member 33 can protrude from the surface of the hole 312. And the button housing 31 〇 and the trigger member 23 〇 form an upward curved surface. In addition, please refer to FIG. 3C. FIG. 3C is a cross-sectional view of the final state after the user presses the button structure of FIG. 3B. When the user f presses the button structure 300, the user can directly press the trigger member 33〇, and the first day can be triggered. The piece 330 is directly pressed down to trigger the gold film ^: key 51G on the circuit board 5 to output - the button signal. At the second time, the body of the button is deformed with the force of depression and the contact portion is brought into contact with the metal film button 51. After the pressing is completed, the trigger member 33〇 can be returned to the original state by the elastic force of the button 1309051 TW95063GC 22064twf.doc/t body 320. g, although the button structure 20 有 is partially different from the button structure 300, the end of the trigger member 330 protrudes from the surface of the button structure 3 (8) to form a convex surface of the shape, similar to the protrusion 212. Function, the user can press the part of the convex surface to trigger the button effectively, so the user can easily (4) confirm the position of the trigger zone, and the division will press the non-trigger zone to cause the button to fail. Further, the user can also intuitively press the button on the convex &le surface by intuitively touching the convex surface. In summary, the button structure of the present invention has the following advantages: () Since the user presses the convex surface on the button, the button can be triggered right-handed, and the age _ψ μ ^ 赖 (4) button signal, so use The button can be clearly turned off. The avoidance of the touch is caused by the touch-sensing area. When the two are used, the situation can be shortened by the convex surface of the button structure or the button area is small. , also == Deviation and the situation of accidentally touching other buttons. Deviation from the position and scope of the present invention ^ #==3:, in the absence of the protection of the invention, the application of the application; patent paradigm [simplified description] 1309051 TW95063GC 22064twf.doc /t FIG. 1A is a schematic diagram of the appearance of a portable electronic device. FIG. 1 is an exploded view of various components of a portable electronic device. Fig. 2 is an exploded view of the components of the key structure of the first embodiment of the present invention. Figure 2 is a cross-sectional view showing a key structure of the first embodiment of the present invention disposed on a circuit board. Fig. 2C is a cross-sectional view showing the final state of the user after pressing the button structure of Fig. 2; Figure 3 is an exploded view of the components of the key structure of the second embodiment of the present invention. Figure 3 is a cross-sectional view showing a key structure of a second embodiment of the present invention disposed on a circuit board. Fig. 3C is a cross-sectional view showing the final state of the user after pressing the button structure of Fig. 3; [Main component symbol description] 100: Portable electronic device 110: Upper cover 112: Broken hole 120: Button module 122: Plastic button 124: Plastic holder 126: Rubber base 200, 300: Button structure 210: Button surface 13 1309051 TW95063GC 22064twf.doc/t 212: protruding portion 214: accommodating space 220: button body 222, 322: accommodating holes 224, 324: contact portion. 226, 326: connecting portion 230, 330: trigger member 310: button housing > 312: perforations 400, 500: circuit boards 410, 510: metal film button 14