1363592 u I 100年.10月12日梭正替換頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種鍵盤結構，尤其係關於一種可防水防 塵之密封鍵盤結構。 【先前技術】 [0002] 隨著無線通訊與資訊處理技術之發展，行動電話、PDA等 便攜式電子裝置競相湧現，令消費者可隨時隨地充分享 受高科技帶來之種種便利。便攜式電子裝置中，按鍵作 為用戶輸入端已成為便攜式電子裝置之必不可少之部分 [0003] 習知便攜式電子裝置按鍵結構主要將設有複數按鍵之按 鍵體套設於便攜式電子裝置之外殼孔上，按鍵體之底部 設有連接點，用於接觸電路板以感應輸入信息。若經常 置於潮濕度高或下雨天被不小心淋濕時，水或水汽都會 徑由按鍵與行動電話外殼之細微空隙滲入便攜式電子裝 置内部，從而影響便攜式電子裝置之電路板運作系統。 另，空氣中漂浮之塵埃如果進入行動電話内部，亦會影 響行動電話之性能。 [0004] 為避免生活中因意外進水或進入塵埃而造成對便攜式電 子裝置中電路板之損壞，鍵盤常採用防水防塵設計。習 知技術中，P方水鍵盤常採用防水薄膜包裹於鍵盤表面， 然該過程程序複雜，不易控制，且防水薄膜易損壞；另 ，亦有採用封膠形式，其製造成本增加，且封膠易受溫 度變化，而影響防水防塵效果。 【發明内容】 094118364 表單編號A0101 第3頁/共14頁 1003375879-0 1363592 100年10月12日梭正替無頁 [0005] 有鑒於此，提供一種可提高防水防塵性能之鍵盤結構實 為必要。 [0006] —種鍵盤結構，包括：一上殼及一按鍵體，該上殼上具 一按鍵孔區，該按鍵孔區上設有複數按鍵孔，該按鍵孔 區周圍設有一溝槽；該按鍵體上具一按鍵區，於該按鍵 體之按鍵區周圍設有一突起，該突起可卡合於上殼之溝 槽。 [0007] 一種鍵盤結構，包括：一上殼，該上殼上設有按鍵孔， 於按鍵孔周圍設有溝槽；一按鍵體，該按鍵體上設有按 鍵，於按鍵周圍設有突起，該突起卡合於該上殼之溝槽 内0 [0008] 相較習知技術，所述鍵盤結構上殼與按鍵體藉由突起和 溝槽配合，使密封處有較好之密封效果，從而可起到防 水及防塵效果。 【實施方式】 [0009] 本發明鍵盤結構優選實施方式適用於便攜式電子裝置。 以下以其應用於行動電話（圖未示）為例加以說明，所述 行動電話之鍵盤結構連接其内部之印刷電路板，實現輸 入信息之轉換。 [0010] 請參閱第一圖及第二圖，該鍵盤結構包括一上殼100及一 按鍵體200。該按鍵體200位於行動電話本體之印刷電路 板上，該上殼100用以蓋住行動電話本體及按鍵體200。 [0011] 該上殼100包括一周壁120及一底壁140，該底壁120與周 壁140圍成一容置腔150。該底壁140上設有顯示屏區142 094118364 表單編號A0101 第4頁/共14頁 1003375879-0 1363592 I » 100年.10月12日修正紗！ ’其相鄰處設有按鍵孔區144。該按鍵孔區144上開有複 數按鍵孔146。於按鍵孔區144之周圍，設有矩形溝槽148 〇 [0012] 請參閱第三圖’該按鍵體200由彈性塑膠製成，其一側設 有按鍵區201，該按鍵區201上設有複數按鍵202，該按 鍵202與上殼100之按鍵孔146相對應，從而可使複數按 鍵202從上殼100中露出。於按鍵區2〇1周圍設有一突起 204，該突起204為一矩形方框’將複數按鍵2〇2包圍， 該突起204可與上殼1〇〇之溝槽148相卡合。突起204與溝 槽148之間採用干涉配合之結構，於卡合時，突起204發 生變形’從而將按鍵體200與上殼1〇〇密封。請參閱第四 圖’該突起204包括一頂部2040及一連接部2042，該頂 部2 0 4 Q為矩形，該連接部2 0 4 2為二側臂，其相對於頂部 2040有傾角’且連接頂部2040於按鍵體2〇〇上。該突起 204之結構受擠壓時，頂部2040及連接部2042皆可變形 ，便於與上殼100之溝槽148干涉配合。 [0013] 請參閱第五圖至第八圖’裝配時，將按鍵體2〇〇之複數按 鍵202對準上殼1〇〇之按鍵孔146，之後藉由突起2〇4與上 殼之溝槽148相卡合，突起204之頂部2040及連接部2042 之縱向尚度大於溝槽148之深度，故頂部2040及連接部 2042受壓產生彈性變形，因連接部2042厚度較薄，易於 變形’便於頂部2040及連接部2042密封住溝槽148，從 而將按鍵體200與上殼100密封於_體。 本發明鍵盤結構之上殼100與按鍵體2〇〇於搭接處有較好 之密封’從而可起到防水及防塵效果。上殼100與按鍵體 094118364 表單編號A0101 第5頁/共14頁 1003375879-0 [0014] 1363592 _ 100年10月12日核正替無頁 200之密封，亦可避免行動電話之話筒聲音信號從按鍵體 200中傳出，從而具有較好之隔音效果。 [0015] 可以理解，該突起204整個斷面亦可整體為矩形。 [0016] 可以理解，突起204與溝槽140圍在按鍵孔區及按鍵區上 之形狀亦可為圓形。 [0017] 可以理解，該突起204亦可圍成一封閉曲線，上殼100之 溝槽140亦圍成一封閉曲線。 [0018] 可以理解，該突起204可設於每一按鍵202周圍，溝槽 148則相應設於每一按鍵孔146周圍。 [0019] 綜上所述，本發明符合發明專利要件，爰依法提出專利 申請。惟，以上所述者僅為本發明之較佳實施例，本發 明之範圍並不以上述實施例為限，舉凡熟習本案技藝之 人士援依本發明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】 [0020] 第一圖係本發明鍵盤結構較佳實施方式之分解示意圖； [0021] 第二圖係第一圖之II處局部放大圖； [0022] 第三圖係本發明鍵盤結構較佳實施方式之按鍵體結構示 意圖； [0023] 第四圖係第三圖之IV處局部放大圖； [0024] 第五圖係本發明鍵盤結構較佳實施方式裝配示意圖； [0025] 第六圖係第五圖沿V-V方向之剖示圖； 094118364 表單編號A0101 第6頁/共14頁 1003375879-0 1363592 100年.10月12日修正替换頁 [0026] 第七圖係本發明鍵盤結構較佳實施方式裝配前第六圖VII 處放大圖； [0027] 第八圖係本發明鍵盤結構較佳實施方式裝配後第六圖VII 處放大圖。 [0028] 【主要元件符號說明】 上殼：100 - [0029] 周壁：120 [0030] 底壁：140 [0031] 、' 顯示屏區：142 [0032] 按鍵孔區：144 > [0033] 按鍵孔：146 [0034] 溝槽：148 [0035] 容置腔：150 [0036] 按鍵體：200 [0037] 按鍵區：201 [0038] 按鍵：202 [0039] 突起：204 [0040] 頂部：2040 [0041] 連接部：2042 094118364 表單編號A0101 第7頁/共14頁 1003375879-01363592 u I 100 years. October 12th Shuttle replacement page VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a keyboard structure, and more particularly to a waterproof and dustproof sealed keyboard structure. [Prior Art] [0002] With the development of wireless communication and information processing technology, portable electronic devices such as mobile phones and PDAs are emerging, allowing consumers to share the conveniences brought by high technology anytime and anywhere. In the portable electronic device, the button as the user input has become an indispensable part of the portable electronic device. [0003] The conventional portable electronic device button structure mainly sets the button body provided with the plurality of buttons on the shell hole of the portable electronic device. The bottom of the button body is provided with a connection point for contacting the circuit board to sense input information. If it is often placed in a humid or rainy day, the water or moisture will penetrate into the portable electronic device through the small gap between the button and the phone case, thus affecting the circuit board operating system of the portable electronic device. In addition, if the dust floating in the air enters the inside of the mobile phone, it will also affect the performance of the mobile phone. [0004] In order to avoid damage to the circuit board in the portable electronic device due to accidental water ingress or dust entering the life, the keyboard is often designed to be waterproof and dustproof. In the prior art, the P-square water keyboard is often wrapped with a waterproof film on the surface of the keyboard, but the process is complicated, difficult to control, and the waterproof film is easily damaged; in addition, the sealing form is also used, the manufacturing cost is increased, and the sealing is applied. It is susceptible to temperature changes and affects waterproof and dustproof effects. SUMMARY OF THE INVENTION 094118364 Form No. A0101 Page 3 of 14 1003375879-0 1363592 October 12, 100 Shuttle Nothing [0005] In view of this, it is necessary to provide a keyboard structure that can improve waterproof and dustproof performance. . [0006] A keyboard structure includes: an upper casing and a button body, the upper casing has a button hole area, the button hole area is provided with a plurality of button holes, and a groove is arranged around the button hole area; The button body has a button area, and a protrusion is arranged around the button area of the button body, and the protrusion can be engaged with the groove of the upper case. [0007] A keyboard structure includes: an upper casing, wherein the upper casing is provided with a button hole, and a groove is arranged around the button hole; a button body is provided with a button on the button body, and a protrusion is arranged around the button; The protrusion is engaged in the groove of the upper casing. [0008] Compared with the prior art, the upper casing and the button body of the keyboard structure are matched by the protrusion and the groove, so that the sealing portion has a better sealing effect, thereby It is waterproof and dustproof. [Embodiment] A preferred embodiment of the keyboard structure of the present invention is applicable to a portable electronic device. The following is exemplified by its application to a mobile phone (not shown). The keyboard structure of the mobile phone is connected to its internal printed circuit board to realize the conversion of input information. [0010] Referring to the first and second figures, the keyboard structure includes an upper case 100 and a button body 200. The button body 200 is located on a printed circuit board of the mobile phone body, and the upper case 100 is used to cover the mobile phone body and the button body 200. [0011] The upper casing 100 includes a peripheral wall 120 and a bottom wall 140. The bottom wall 120 and the peripheral wall 140 define a receiving cavity 150. The bottom wall 140 is provided with a display screen area 142 094118364 Form No. A0101 Page 4 of 14 1003375879-0 1363592 I » 100 years. October 12 correction yarn! A button hole area 144 is provided adjacent thereto. A plurality of button holes 146 are formed in the button hole area 144. A rectangular groove 148 is provided around the button hole area 144. [0012] Referring to the third figure, the button body 200 is made of elastic plastic, and one side of the button body 201 is provided with a button area 201, and the button area 201 is provided with A plurality of buttons 202 corresponding to the button holes 146 of the upper case 100 enable the plurality of buttons 202 to be exposed from the upper case 100. A protrusion 204 is disposed around the button area 2〇1, and the protrusion 204 is a rectangular box ′ which encloses the plurality of buttons 2〇2, and the protrusion 204 can be engaged with the groove 148 of the upper case 1〇〇. The protrusion 204 and the groove 148 are configured to have an interference fit, and the protrusion 204 is deformed when engaged, thereby sealing the button body 200 and the upper case 1〇〇. Referring to the fourth figure, the protrusion 204 includes a top portion 2040 and a connecting portion 2042. The top portion 2 0 4 Q is a rectangle. The connecting portion 2 0 4 2 is a two-side arm having an inclination angle 'and a connection with respect to the top portion 2040. The top portion 2040 is on the button body 2''. When the structure of the protrusion 204 is pressed, the top portion 2040 and the connecting portion 2042 are deformable to facilitate interference fit with the groove 148 of the upper case 100. [0013] Please refer to FIG. 5 to FIG. 8 'When assembling, the plurality of buttons 202 of the button body 2 are aligned with the button holes 146 of the upper case 1,, and then the grooves of the upper case by the protrusions 2〇4 The groove 148 is engaged, and the longitudinal direction of the top portion 2040 and the connecting portion 2042 of the protrusion 204 is greater than the depth of the groove 148. Therefore, the top portion 2040 and the connecting portion 2042 are elastically deformed under pressure, and the connecting portion 2042 is thin and easy to be deformed. The top portion 2040 and the connecting portion 2042 are sealed to seal the groove 148, thereby sealing the button body 200 and the upper case 100 to the body. In the keyboard structure of the present invention, the upper casing 100 and the button body 2 are better sealed at the overlapping portions, thereby providing waterproof and dustproof effects. Upper case 100 and button body 094118364 Form No. A0101 Page 5 / Total 14 pages 1003375879-0 [0014] 1363592 _ October 12, 100 nuclear replacement for page 200, can also avoid the microphone sound signal of mobile phones from The button body 200 is transmitted out, thereby having a better sound insulation effect. [0015] It can be understood that the entire cross section of the protrusion 204 can also be a whole rectangular shape. [0016] It can be understood that the shape of the protrusion 204 and the groove 140 surrounding the button hole area and the button area may also be circular. [0017] It can be understood that the protrusion 204 can also form a closed curve, and the groove 140 of the upper casing 100 also encloses a closed curve. [0018] It can be understood that the protrusion 204 can be disposed around each button 202, and the groove 148 is disposed around each button hole 146. [0019] In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0020] The first drawing is an exploded view of a preferred embodiment of the keyboard structure of the present invention; [0021] The second drawing is a partial enlarged view of the first figure II; [0022] BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a partial enlarged view of a portion of a third embodiment of the keyboard structure; [0024] FIG. 5 is a schematic view showing a preferred embodiment of a keyboard structure of the present invention; [0025] Figure 6 is a cross-sectional view of the fifth figure in the VV direction; 094118364 Form No. A0101 Page 6 of 14 1003375879-0 1363592 100. October 12 Revision Replacement Page [0026] The seventh figure is the present invention BEST MODE FOR CARRYING OUT THE INVENTION FIG. VII is an enlarged view of the sixth embodiment of the keyboard structure of the present invention. [0027] FIG. [Main component symbol description] Upper case: 100 - [0029] Wall: 120 [0030] Bottom wall: 140 [0031], 'Display area: 142 [0032] Keyhole area: 144 > [0033] Keyhole: 146 [0034] Groove: 148 [0035] accommodating cavity: 150 [0036] Button body: 200 [0037] Button area: 201 [0038] Button: 202 [0039] Protrusion: 204 [0040] Top: 2040 [0041] Connection: 2042 094118364 Form No. A0101 Page 7 of 14 1003375879-0