五、新型說明： 【新型所屬之技術領域】 [0001] 本創作關於一種按鍵單元，這種按鍵單元應用於行動裝 置，例如可攜式行動電話。 【先前技術】 [0002] 按鍵單元是構成諸如可攜式行動電話等行動裝置的重要 部件，在行動電話上，一個按鍵面板表面可以集成多個 操作按鈕凸出設置，通常這種按鍵面板由硬樹脂類材料 製成，而在操作按鈕下一般設有若干鍵墊，所述鍵墊由 軟製材料如矽橡膠或熱塑彈性體製成^這種按鍵單元的 普遍應用為用戶在行動電話的資訊輸乂帶來了極大方便 。而由於行動電話技術的發展，尤其是行動電話薄型化 趨勢之進步，以及人們對行動電話外觀要求的不斷提高 ’這種帶有突出式鍵帽之按鍵單元逐漸演變為完全呈平 板狀之按鍵單元，即操作按鈕並不突出於按鍵面板設置 。前述兩種按鍵單元為現今業界通常為行動裝置配備之 按鍵種類，在生產和組裝過程中，通常先完成按鍵單元 的表面處理，然後經過錯射表面鐘雕蚀刻，在按鍵單元 的鍵金屬層形成一定圖案和文字後將按鍵出貨給客戶。 [0003] 同時’業界另外一種通常的製造方式為將按鍵單元先與 行動裝置組裝’完成整出貨前除打標外的一切工序後， 再根據行動裝置之出貨地進行雷雕蝕刻，能夠降低多符 號（語言）版本按鍵單元的庫存。 [0004] 前述的方式，由於鐳雕蝕刻後被蝕刻掉的金屬粉末或者 表單煸號A0K11 第3頁/共15頁 M398149 由於蝕刻而產生的氣體無法排出按鍵單元，經常造成按 鍵單元表面字體效果顯示不良，影響行動電話的美觀和 銷售量。 [0005] 因此，需要提供一種能夠解決上述問題的按鍵單元。 【新型内容】 [0006] 本創作所要達到的目的為：在按鍵單元内設有排出孔用 於排出鐳雕蝕刻而產生的粉末或者氣體，保證行動電話 表面字體顯示效果良好。 [0007] 為達到上述目的，本創作所採用的技術方案為：按鍵單 元，包括有由底向頂疊加之，讲、鍵墊層以 及保護層，網狀層由透光性邊'脂&才.#潘;出成趣，導光層 與鍵墊層置於網狀層之上表《Γ.，'f光層貪m設有若干收 容通槽，鍵墊層包括若干單獨按鍵，該等按鍵分別收容 於收容通槽中，保護層黏附在其所對應之鍵墊層上，其 中按鍵包含一個彈性按壓體以及貫穿按鍵上下表面的排 出口。 [0008] 與習知技術相比，本創作按鍵單元在打標的過程中，因 為鐳射刻蝕而產生的油墨或者金屬粉末能夠通過排出口 排出按鍵單元，防止粉末滯留於按鍵單元内而造成的按 鍵表面顯示效果不良。 【實施方式】 [0009] 請參閱第一圖至第五圖，本創作按鍵單元1由底層到頂層 ，共包括：網狀層10、導光層20、鍵墊層30以及保護層 40。其中，保護層40的底面印刷有有色油墨（未圖示）。 表單編號A0101 第4頁/共15頁 前述各層沿一軸向疊加，共同組成按鍵單元1。 [0010] 請參閱第三圖和第四圖，按鍵單元1的網狀層10由如PC ( 聚碳酸酯）或者PET(聚對笨二甲酸乙二醇酯）等透光性樹 脂材料製成，該類透光性樹脂材料具有優良的導光性能 ，本創作按鍵單元1中的網狀層10採用PET材料射出成型 ，並形成若干網孔（未標示）。網狀層10能夠承載前述的 導光層20以及鍵墊層30，導光層20和鍵墊層30均一體射 出成型於網狀層10。在其他較佳的組裝方式中，導光層 20和鍵墊層30也可以分別成型，然後通過雙面膠或者其 他具有黏性的材料與網狀層10的上表面11相黏接。 [0011] 導光層20為PC材料或者PET材料中的任意一種，導光層 20上對應於鍵墊層30貫通設有若干收容通槽21。導光層 20具有良好的導光性，能夠傳導行動電話内光源所散發 出的光線。 [0012] 鍵墊層30由若干個單獨按鍵構成，按功能分為顯示按鍵 31和功能按鍵32，顯示按鍵31和功能按鍵32由高透光性 的塑膠材質射出成型，該塑膠材質可為TPE (熱塑性聚脂 彈性體）、PC(聚碳酸酯）、ABS (丙烯晴-丁二烯-苯乙烯 )或PE (聚乙烯）等任意一種。而本實施例中採用TPE材 料。顯示按鍵31包括一第一本體部310，第一本體部310 設有貫穿第一本體部310的上下表面呈鏤空狀的排出口 311，排除口 311被一彈性按壓體312所對稱分隔。請參 閱第四圖，彈性按壓體31 2與網狀層10接觸的一側凸出設 有第一按壓柱313。功能按鍵32包括第二本體部320，第 二本體部320與網狀層10接觸的一側凸出設有第二按壓枉 表單編號A0101 第5頁/共15頁 321。 [0013]M398149 保護層40由PMMA(聚甲基丙烯酸甲酯）或者pc(聚碳酸酯） 材料射出成型’保護層4〇對應於配合的顯示按鍵31和功 能按鍵32形成不同的形狀。請參閱第四圖，保護層40具 有完全平板狀的底面41，底面41印刷有有色油墨或者鍍 有金屬材料，金屬材料一般為熔點較低的錫（Sn)。通過 塗附於顯示按鍵31和功能按鍵32膠水（未圖示），保護層 40的底面41能夠與鍵墊層30相互黏接。 [0014] 請參閱第三圖和第五圖*組裝後的按鍵單元1，導光層20 和鍵墊層30分別射出成型於網狀層1〇的上表面11 ’並且 .(纖奪:声 鍵整·層30的顯示按鍵31和功麥在導光層 20的收容通槽21中。保護層層30表面 的膠水與鍵墊層30相黏接。 [0015] 按鍵單元1組裝後要進行鐳射刻蝕打標，在按鍵單元1上 形成標示作用的數位或者圖案。甩一定能量範圍内的鐳 射照射’將在保護層40底面41之有色油墨或者金屬材料 部分刻蝕’形成對應的數位、圖案或者符號（例如1、2、 3'4'5、6、7、8、9、#'*等），而刻蝕所產生的油墨 粉末、金屬粉末和其他氣體，能夠通過顯示按鍵31的排 出口 311並通過網狀層1〇的網孔排出按鍵單元1，不會造 成因為粉末或氣體滯留在按鍵單元1内，按鍵表面字體顯 示不良的結果。另外’若功能按鍵32需要鐳射刻敍形成 數位或者圖案，則工序與前述顯示按鍵31被刻餘方式相 同0 表單編號A0101 第6頁/共15頁 M398149 [0016] 综上所述，本創作符合新型專利要件，爰依法提出專利 申請。惟，以上所述者僅為本創作之較佳實施方式，本 創作之範圍並不以前述實施方式為限，舉凡熟習本案技 藝之人士援依本創作之精神所作之等效修飾或變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 [0017] 第一圖為本創作按鍵單元組裝後的立體圖； [0018] 第二圖為第一圖所示按鍵單元無網狀層的另外一個角度V. New description: [New technical field] [0001] This creation relates to a button unit that is applied to a mobile device such as a portable mobile phone. [Prior Art] [0002] A button unit is an important component constituting a mobile device such as a portable mobile phone. On a mobile phone, a button panel surface can be integrated with a plurality of operation button protrusion settings, usually such a button panel is hard Made of a resin-based material, and generally provided with a plurality of key pads under the operation button, the key pad is made of a soft material such as ruthenium rubber or a thermoplastic elastomer. The universal application of such a button unit is for a user in a mobile phone. Information transmission has brought great convenience. Due to the development of mobile phone technology, especially the trend of thinning mobile phones, and the increasing demands on the appearance of mobile phones, the button unit with a prominent keycap has gradually evolved into a completely flat button unit. , that is, the operation button does not protrude from the button panel settings. The two types of button units are the types of buttons that are commonly used in mobile devices in the industry today. In the production and assembly process, the surface treatment of the button unit is usually completed first, and then the surface of the button unit is formed by a misaligned surface clock etching. After a certain pattern and text, the button will be shipped to the customer. [0003] At the same time, 'the other common manufacturing method in the industry is to assemble the button unit with the mobile device first', and then complete all the processes except the marking before the whole shipment, and then perform the laser etching according to the shipping location of the mobile device. Reduce the inventory of multi-symbol (language) version button units. [0004] In the foregoing manner, the metal powder which is etched away after the laser engraving or the nickname A0K11, page 3/15 pages, M398149, the gas generated by the etching cannot be discharged from the button unit, and the surface font effect display of the button unit is often caused. Bad, affecting the beauty and sales of mobile phones. Accordingly, it is desirable to provide a button unit that can solve the above problems. [New Content] [0006] The purpose of this creation is to provide a discharge hole for the powder or gas generated by the laser engraving in the button unit to ensure good surface font display on the mobile phone. [0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows: a button unit includes a layer, a key pad layer and a protective layer which are superposed from the bottom to the top, and the mesh layer is made of a translucent edge 'fat &才.#潘; Out of interest, the light guide layer and the key pad layer are placed on the mesh layer. "Γ., 'f light layer greet m has a number of receiving slots, the key pad layer includes a number of separate buttons, these The buttons are respectively received in the receiving through grooves, and the protective layer is adhered to the corresponding key pad layer, wherein the button comprises an elastic pressing body and a discharge port penetrating the upper and lower surfaces of the button. Compared with the prior art, in the process of marking, the ink or metal powder generated by laser etching can discharge the button unit through the discharge port to prevent the powder from being stuck in the button unit. The surface display is not effective. [Embodiment] Referring to the first to fifth figures, the present button unit 1 includes a mesh layer 10, a light guiding layer 20, a key pad layer 30, and a protective layer 40 from the bottom layer to the top layer. Among them, a colored ink (not shown) is printed on the bottom surface of the protective layer 40. Form No. A0101 Page 4 of 15 The aforementioned layers are superimposed along one axis to form the button unit 1. [0010] Referring to the third and fourth figures, the mesh layer 10 of the button unit 1 is made of a translucent resin material such as PC (polycarbonate) or PET (poly(p-ethylene glycolate)). The light transmissive resin material has excellent light guiding properties, and the mesh layer 10 in the button unit 1 of the present invention is injection molded by PET material and forms a plurality of meshes (not shown). The mesh layer 10 can carry the aforementioned light guiding layer 20 and the key pad layer 30, and the light guiding layer 20 and the key pad layer 30 are integrally formed and formed on the mesh layer 10. In other preferred arrangements, the light directing layer 20 and the key pad layer 30 can also be separately formed and then bonded to the upper surface 11 of the mesh layer 10 by a double sided tape or other viscous material. [0011] The light guiding layer 20 is any one of a PC material or a PET material, and the light guiding layer 20 is provided with a plurality of receiving through grooves 21 corresponding to the key pad layer 30. The light guiding layer 20 has good light guiding properties and is capable of transmitting light emitted from a light source in a mobile phone. [0012] The key pad layer 30 is composed of a plurality of individual buttons, and is divided into a display button 31 and a function button 32 according to functions. The display button 31 and the function button 32 are formed by a high light transmissive plastic material, and the plastic material can be TPE. Any one of (thermoplastic polyester elastomer), PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene), or PE (polyethylene). In this embodiment, a TPE material is used. The display button 31 includes a first body portion 310. The first body portion 310 is provided with a discharge port 311 which is hollowed out through the upper and lower surfaces of the first body portion 310. The cutout port 311 is symmetrically separated by an elastic pressing body 312. Referring to the fourth figure, the side of the elastic pressing body 31 2 that is in contact with the mesh layer 10 is convexly provided with a first pressing post 313. The function button 32 includes a second body portion 320, and a side of the second body portion 320 that is in contact with the mesh layer 10 is convexly provided with a second pressing frame form number A0101 page 5/15 pages 321 . [0013] The M398149 protective layer 40 is injection molded from PMMA (polymethyl methacrylate) or pc (polycarbonate) material. The protective layer 4 is formed into a different shape corresponding to the mated display button 31 and the function button 32. Referring to the fourth figure, the protective layer 40 has a completely flat bottom surface 41 printed with colored ink or metal plated material, and the metal material is generally tin (Sn) having a lower melting point. The bottom surface 41 of the protective layer 40 can be bonded to the key pad layer 30 by being applied to the display button 31 and the function button 32 glue (not shown). [0014] Referring to the third and fifth figures* of the assembled button unit 1, the light guiding layer 20 and the key pad layer 30 are respectively formed on the upper surface 11' of the mesh layer 1〇 and (figure: sound) The display button 31 of the bonding layer 30 and the functioning tape are placed in the receiving groove 21 of the light guiding layer 20. The glue on the surface of the protective layer 30 is bonded to the key pad layer 30. [0015] After the button unit 1 is assembled, it is performed. Laser etching marks and forms a digital or pattern on the button unit 1. The laser irradiation in a certain energy range 'will etch the colored ink or metal material on the bottom surface 41 of the protective layer 40 to form a corresponding digit, a pattern or symbol (for example, 1, 2, 3'4'5, 6, 7, 8, 9, #'*, etc.), and the ink powder, metal powder and other gases generated by the etching can be displayed by the display button 31. The discharge port 311 discharges the button unit 1 through the mesh of the mesh layer 1〇, and does not cause a result that the surface of the button is poorly displayed due to powder or gas being trapped in the button unit 1. In addition, if the function button 32 requires laser engraving Forming a digit or a pattern, the process and the aforementioned display are pressed 31 is the same as the way of engraving 0 Form No. A0101 Page 6 / Total 15 pages M398149 [0016] In summary, the creation meets the requirements of the new patent, and the patent application is filed according to law. However, the above is only the creation of this patent. In the preferred embodiment, the scope of the present invention is not limited to the foregoing embodiments, and equivalent modifications or variations made by those skilled in the art to the spirit of the present invention are intended to be included in the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0017] The first figure is a perspective view of the assembled button unit after assembly; [0018] The second figure is another angle of the button unit without the mesh layer shown in the first figure
[0019] 第三圖為第一圖所示按鍵單元的立體分解圖； [0020] 第四圖為第一圖所示按鍵單元另外一個角.度的立體分解 圖； [0021] 第五圖為第一圖所示按鍵單元沿V-V線的剖面示意圖。 【主要元件符號說明】 [0022] 按鍵單元：1[0019] The third figure is an exploded perspective view of the button unit shown in the first figure; [0020] The fourth figure is an exploded perspective view of another angle of the button unit shown in the first figure; [0021] The cross-sectional view of the button unit shown in the first figure along the VV line. [Main component symbol description] [0022] Button unit: 1
[0023] 網狀層：10 [0024] 上表面：11 [0025] 導光層：20 [0026] 收容通槽：21 [0027] 鍵墊層：30 [0028] 顯示按鍵：31 表單編號A0101 第7頁/共15頁 M398149 [0029] 第一本體部： 310 [0030] 者有出口 ： 311 [0031] 彈性按壓體： 312 [0032] 第一按壓柱： 313 [0033] 功能按鍵：32 [0034] 第二本體部： 320 [0035] 第二按壓柱： 321 [0036] 保護層：40 [0037] 底面：41 表單編號A0101 第8頁/共15[0023] Mesh layer: 10 [0024] Upper surface: 11 [0025] Light guiding layer: 20 [0026] Storage channel: 21 [0027] Key pad: 30 [0028] Display button: 31 Form number A0101 7 pages/total 15 pages M398149 [0029] First body portion: 310 [0030] The outlet has: 311 [0031] Elastic pressing body: 312 [0032] First pressing column: 313 [0033] Function button: 32 [0034] ] Second body part: 320 [0035] Second pressing post: 321 [0036] Protective layer: 40 [0037] Bottom surface: 41 Form number A0101 Page 8 of 15