200952016 九、發明說明： 【發明所屬之技術領域】 ‘ 本發明涉及鍵盤輸入裝置，特別涉及鍵盤輪入裝置之按 -鍵模組。 【先前技術】 一般而言’現有之電子設備，例如，可搞式電腦、行 動電話等’其鍵盤（Keyboard，Keypad等）多配置有發光 元件和導光元件，例如，發光二極體和導光板等。發光元 件發出之光線經導光元件傳輸’而從鍵盤之按鍵部向外透 射，從而使鍵盤兼具發光功能’以利於使用者在低亮度或 者黑暗環境下快速尋找鍵盤之按鍵。 上述鍵盤之按鍵模組，其典型構造包括：底板、薄膜 電路板、彈性體、鍵帽、發光二極體以及導光板。其中， 彈性體設於導光板和鍵帽之間，用於提供回復力，使鍵帽 經按壓後可以回復到初始位置。導光板和薄膜電路板依次 ❹堆疊於底板之上，發光二極體設於底板和導光板之間。薄 膜電路板用於響應對應鍵帽之按壓動作，產生對應按鍵之 電訊號’以供後續之鍵盤掃描電路識別。發光二極體發出 之光線經由導光板傳輸，而從鍵帽向外透射，從而產生發 光效果。 然而’上述構造之按鍵模組，因其導光板一般設於彈 性體之下方，使得按鍵模組之整體高度較高，不利於產品 向薄型化方向發展。 【發明内容】 200952016 有鑒於此，有必要提供一種可以有效降低高度之按鍵 模組。 種按鍵模組，其包括鍵帽，彈性體及導光板。彈性 .體用於彈性支撐所述鍵帽。導光板用於向鍵帽傳輸光線， 使光線從所述鍵帽向外透射。導光板設有第一通孔，彈性 體穿過所述第一通孔，並與所述鍵帽相接。 一種按鍵模組，包括鍵帽，彈性體及固定板。彈性體 用於彈性支撐所述鍵帽。固定板在對應於彈性體之位置處 開設有第一通孔。彈性體穿過第一通孔，並與鍵帽相接。 一種按鍵模組，包括鍵帽，彈性元件及導光板。彈性 元件部分彎曲形成彈性體，該彈性體用於彈性支撐鍵帽。 該導光板疊於彈性元件之位於彈性體周圍之區域，導光板 用於向鍵帽傳輸光線，使光線從鍵帽向外透射，導光板在 對應於彈性體之位置處設有第一通孔。彈性體穿過第一通 孔，並與鍵帽相接。 Q 相較先前技術’由於彈性體穿過導光板或者固定板， 相對於傳統之將導光板或者固定板設於彈性體下方而言， 可以有效降低按鍵模組之高度。 【實施方式】 以下結合附圖對本發明之較佳實施方式進行描述。 如圖1所示，一較佳實施方式之按鍵模組100主要包 括：鍵帽112、剪刀形懸吊機構113、導光板130、彈性元 件140、薄膜電路板150、間隔板160以及主機板180。主 機板180用於堆疊間隔板160、薄膜電路板150、彈性元件 200952016 140及導光板130等元件。 -蝮由透明或者半透明材料製成，以透射光 線，或者由不透明材料製成，而印刷有透明之字元，使光 -線可以從透明之字元向外透射。 便元 形懸吊機構113包括彼此交叉之第一支架115和 117。第一支架115和第二支架117之-端樞接 於導光板㈣或者鍵帽112，另—端活動連接於鍵帽112 ❹ 或者導光板130。當鍵Φ冒！ ！ 〇 >成、 t 鍵11目112被按壓而沿與基本與導光 ㈣垂直之第-方向（如〇_χ所示）位移時，或者在外力 釋放後沿與第-方向相反之第二方向（如所示）位移 時，藉由第一支架115和第二支架117之樞轉運動，可使 鍵帽112始終基本保持水平。 主機板180為印刷電路板（pdnted B〇ard， PCB )，其-面形成有第—導電部182，該第—導電部收 可以為導電觸點或者導電線。 〇 薄膜電路板150由彈性材料製成，例如，聚酯薄骐 (Mylar)等，其在外力作用下，可以發生彈性形變。薄骐 電路板150位於主機板180之上，其在與主機板18〇相對 之表面上設有與第一導電部182相對應之第二導電部 152，該第二導電部152也可以為導電觸點或者導電線。 間隔板160具有適當之厚度，其由一般的塑膠材料製 成。間隔板160填充於薄膜電路板15〇和主機板18〇之間， 以用於在電路板150和主機板180之間形成一預設空間， 使鍵帽112在未按壓時，第一導電部ι82和第二導電部152 200952016 之間藉由空氣絕緣，不構成導電通路。間隔板160在對應 於第一導電部182和第二導電部152位置處開設有第一通 、孔162。該第一通孔162之尺寸略大於第一導電部182和 -第二導電部152之尺寸，以利於在鍵帽112被按下時，薄 膜電路板150發生彈性形變，使得第二導電部152穿過該 第一通孔162，與第一導電部182相接觸，以形成導電通 路’從而產生對應按鍵之電訊號。 彈性元件140設於薄膜電路板150之上，其部分彎曲 形成突出之彈性體142及觸壓部144。彈性體142由不透 明材料製成。該彈性體142可以穿過導光板130和固定板 120開設之通孔（如下詳述），以及第一支架ι15和第二支 架117開設之中空區（圖未示）’並與鍵帽相接。該彈 性體142用於在鍵帽112經按壓作用後提供回復力，使鍵 帽112可以回復到初始位置。觸壓部144用於觸壓薄膜電 路板150 ’使薄膜電路板15〇發生彈性形變，從而使第一 ❹導電部182和第二導電部152接觸，以形成導電通路。 導光板130疊於彈性元件140之位於彈性體142周圍 之區域。導光板130在對應於彈性體142之位置處開設有 第二通孔132。該第二通孔132用於使彈性體142穿過其 中與鍵帽112相接。當鍵帽112為透明材料時，導光板13〇 發出之光線即從鍵帽112向外透射，從而產生發光效果。 如圖2所示，其為另一較佳實施方式所示之按鍵模組 200的剖面示意圖。按鍵模組2〇〇與按鍵模組1〇〇具有基 本相似之結構，其不同之處在於按鍵模組2〇〇還具有固定 200952016 板120。固定板120疊於導光板130之上，固定板120在 對應於彈性體142之位置處開設有使彈性體142穿過之第 -三通孔124。第三通孔124之尺寸略大於第二通孔132之 -尺寸，從而使導光板130將從光源（圖未示）傳輸而來之 光線，經第三通孔124之臨近彈性體142外侧之部分，向 鍵帽112發射。當鍵帽112為透明材料時，光線即從鍵帽 112向外透射，從而產生發光效果。 固定板120用於連接剪刀形懸吊機構113，剪刀形懸 ❹吊機構113之第一支架115和第二支架117之一端樞接於 固定板120或者鍵帽112，另一端活動連接於鍵帽112或 者固定板120。固定板120可以由金屬材料製成，具有一 定之強度，用於補強彈性元件140及薄膜電路板150等元 件，從而提升按鍵模組100之強度。 由上所述，該按鍵模組100和按鍵模組200分別藉由 在導光板130和固定板120上開設通孔132和124，使彈 a性體142可以穿過通孔132和124，相較傳統之將導光板 ◎ 130或者固定板120設於彈性體142下方而言，可以有效 利用彈性體142對應部分來設置導光板130或者固定板 120,從而整體上降低了按鍵模組100之高度，適應了產品 之薄型化發展趨勢。 進一步，相對傳統之按鍵模組，本實施方式之導光板 130與鍵帽112之位置更加接近，從而使經鍵帽112透射 出來之光線的亮度也得到有效提升。 又進一步，藉由直接在主機板180上形成第一導電部 200952016 182以與薄膜電路板15〇之第二導電部⑸形成導電通 路’可以省去傳統之排線結構，有效降低成本。 —再進一步，在導光板ί30位置提升後，主機板漏也 可以為整個按鍵模組⑽提供—定之強度補償，有效提升 按鍵模組1〇〇之強度。 更進一步，相對傳統之按鍵模組將懸吊機構設置於下 層之底板而5，將懸吊機構113與固定板12〇相接，可以 使按鍵模組100更趨模組化，便於在製造過程中進 組裝。 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，以上所述僅為本發明之較佳實施例，舉凡熟 悉本案技藝之人士，在援依本案創作精神所作之等效修飾 或變化，皆應包含於以下之申請專利範圍内。例如，彈性 體142也可以由透明材質之材料製成。 【圖式簡單說明】 ❹ 圖1為一較佳實施方式之按鍵模組之剖面示意圖。 圖2為另一較佳實施方式之按鍵模組之剖面示意圖 【主要元件符號說明】 按鍵模組 100 間隔板 160 鍵帽 112 主機板 180 彈性元件 140 剪刀形懸吊機構 113 導光板 130 第一支架 115 薄臈電路板 150 第二支架 117 彈性體 142 觸壓部 144 11 200952016 第一導電部 182 第二導電部 152 第一通孔 162 第二通孔 132 第三通孔 124 12200952016 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a keyboard input device, and more particularly to a push button module of a keyboard wheel entry device. [Prior Art] Generally, 'existing electronic devices, for example, portable computers, mobile phones, etc.' have a keyboard (Keypad, Keypad, etc.) configured with a light-emitting element and a light-guiding element, for example, a light-emitting diode and a guide. Light board, etc. The light emitted by the illuminating element is transmitted through the light guiding element and is transmitted outward from the button portion of the keyboard, so that the keyboard has the illuminating function to facilitate the user to quickly find the button of the keyboard in a low brightness or dark environment. The keyboard module of the above keyboard has a typical structure including a bottom plate, a film circuit board, an elastic body, a key cap, a light emitting diode, and a light guide plate. The elastic body is disposed between the light guide plate and the keycap to provide a restoring force, so that the keycap can be returned to the initial position after being pressed. The light guide plate and the thin film circuit board are sequentially stacked on the bottom plate, and the light emitting diode is disposed between the bottom plate and the light guide plate. The thin film circuit board is responsive to the pressing action of the corresponding key cap to generate a corresponding signal of the button for subsequent keyboard scanning circuit recognition. The light emitted by the light-emitting diode is transmitted through the light guide plate and transmitted outward from the key cap to produce a light-emitting effect. However, the button module of the above structure is generally disposed below the elastic body because the light guide plate is disposed below the elastic body, so that the overall height of the button module is high, which is disadvantageous for the development of the product in the direction of thinning. SUMMARY OF THE INVENTION In view of this, it is necessary to provide a button module that can effectively reduce the height. The button module includes a key cap, an elastic body and a light guide plate. Elasticity The body is used to elastically support the keycap. The light guide plate is used to transmit light to the keycap to transmit light outward from the keycap. The light guide plate is provided with a first through hole through which the elastic body passes and is in contact with the key cap. A button module includes a key cap, an elastic body and a fixing plate. The elastomer is used to elastically support the keycap. The fixing plate is provided with a first through hole at a position corresponding to the elastic body. The elastomer passes through the first through hole and is in contact with the key cap. A button module includes a key cap, an elastic component and a light guide plate. The elastic member portion is bent to form an elastic body for elastically supporting the keycap. The light guide plate is stacked on a region of the elastic member around the elastic body, and the light guide plate is configured to transmit light to the key cap to transmit light from the key cap, and the light guide plate is provided with a first through hole at a position corresponding to the elastic body. . The elastomer passes through the first through hole and is in contact with the key cap. Q Compared with the prior art, since the elastic body passes through the light guide plate or the fixed plate, the height of the button module can be effectively reduced as compared with the conventional case where the light guide plate or the fixed plate is disposed under the elastic body. [Embodiment] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1 , a key module 100 of a preferred embodiment mainly includes a key cap 112 , a scissor suspension mechanism 113 , a light guide plate 130 , an elastic component 140 , a thin film circuit board 150 , a spacer 160 , and a motherboard 180 . . The main board 180 is used to stack components such as the spacer 160, the thin film circuit board 150, the elastic member 200952016 140, and the light guide plate 130. - 蝮 Made of a transparent or translucent material to transmit light, or made of an opaque material, printed with transparent characters so that the light-line can be transmitted outward from the transparent character. The consumable suspension mechanism 113 includes first brackets 115 and 117 that cross each other. The ends of the first bracket 115 and the second bracket 117 are pivotally connected to the light guide plate (4) or the keycap 112, and the other end is movably connected to the keycap 112 or the light guide plate 130. When the key Φ comes! ! 〇>, the t-key 11 mesh 112 is pressed and displaced in the first direction perpendicular to the light guiding (four) (as indicated by 〇_χ), or after the external force is released, the second opposite to the first direction When the direction (as shown) is displaced, the keycap 112 can be kept substantially horizontal by the pivotal movement of the first bracket 115 and the second bracket 117. The motherboard 180 is a printed circuit board (PDD), and its surface is formed with a first conductive portion 182, which may be a conductive contact or a conductive line.薄膜 The thin film circuit board 150 is made of an elastic material such as Mylar or the like, which can be elastically deformed by an external force. The thin circuit board 150 is disposed on the motherboard 180, and is provided with a second conductive portion 152 corresponding to the first conductive portion 182 on a surface opposite to the motherboard 18, and the second conductive portion 152 may also be electrically conductive. Contact or conductive wire. The spacer 160 has a suitable thickness and is made of a general plastic material. The spacer 160 is filled between the thin film circuit board 15A and the motherboard 18A for forming a predetermined space between the circuit board 150 and the motherboard 180. When the keycap 112 is not pressed, the first conductive portion ι 82 and the second conductive portion 152 200952016 are insulated by air and do not constitute a conductive path. The spacer 160 defines a first through hole 162 at a position corresponding to the first conductive portion 182 and the second conductive portion 152. The size of the first through hole 162 is slightly larger than the size of the first conductive portion 182 and the second conductive portion 152 to facilitate elastic deformation of the thin film circuit board 150 when the key cap 112 is pressed, so that the second conductive portion 152 Through the first through hole 162, it is in contact with the first conductive portion 182 to form a conductive path 'to generate a signal corresponding to the button. The elastic member 140 is disposed on the thin film circuit board 150, and is partially bent to form a protruding elastic body 142 and a contact portion 144. The elastomer 142 is made of an opaque material. The elastic body 142 can pass through the through hole formed by the light guide plate 130 and the fixing plate 120 (as described in detail below), and the hollow region (not shown) of the first bracket ι15 and the second bracket 117 is connected to the key cap. . The elastic body 142 is for providing a restoring force after the keycap 112 is pressed, so that the key cap 112 can be returned to the initial position. The contact portion 144 is used to contact the thin film circuit board 150' to elastically deform the thin film circuit board 15', thereby bringing the first conductive portion 182 and the second conductive portion 152 into contact to form a conductive path. The light guide plate 130 is laminated on a region of the elastic member 140 located around the elastic body 142. The light guide plate 130 is provided with a second through hole 132 at a position corresponding to the elastic body 142. The second through hole 132 is for passing the elastic body 142 therethrough to the keycap 112. When the keycap 112 is a transparent material, the light emitted from the light guide plate 13 is transmitted outward from the keycap 112, thereby generating a light-emitting effect. As shown in FIG. 2, it is a schematic cross-sectional view of a button module 200 shown in another preferred embodiment. The button module 2〇〇 has a substantially similar structure to the button module 1〇〇, and the difference is that the button module 2〇〇 also has a fixed 200952016 board 120. The fixing plate 120 is stacked on the light guide plate 130. The fixing plate 120 is provided with a third through hole 124 through which the elastic body 142 passes at a position corresponding to the elastic body 142. The size of the third through hole 124 is slightly larger than the size of the second through hole 132, so that the light transmitted from the light source (not shown) by the light guide plate 130 is adjacent to the outer side of the elastic body 142 via the third through hole 124. In part, it is emitted to the keycap 112. When the keycap 112 is a transparent material, light is transmitted outward from the keycap 112, thereby producing a luminous effect. The fixed plate 120 is used for connecting the scissor-shaped suspension mechanism 113. One end of the first bracket 115 and the second bracket 117 of the scissor-shaped suspension mechanism 113 is pivotally connected to the fixed plate 120 or the key cap 112, and the other end is movably connected to the key cap. 112 or fixed plate 120. The fixing plate 120 may be made of a metal material and has a certain strength for reinforcing the elastic member 140 and the film circuit board 150 to improve the strength of the button module 100. As described above, the button module 100 and the button module 200 respectively open through holes 132 and 124 through the light guide plate 130 and the fixing plate 120, so that the elastic body 142 can pass through the through holes 132 and 124. The light guide plate ◎ 130 or the fixed plate 120 is disposed under the elastic body 142. The light guide plate 130 or the fixed plate 120 can be effectively disposed by using the corresponding portion of the elastic body 142, thereby reducing the height of the button module 100 as a whole. Adapted to the trend of thinning products. Further, the position of the light guide plate 130 and the key cap 112 of the present embodiment is closer to the conventional button module, so that the brightness of the light transmitted through the key cap 112 is also effectively improved. Further, by forming the first conductive portion 200952016 182 directly on the motherboard 180 to form a conductive path with the second conductive portion (5) of the thin film circuit board 15, the conventional wiring structure can be omitted, and the cost can be effectively reduced. - Further, after the position of the light guide plate ί30 is raised, the main board leakage can also provide a predetermined intensity compensation for the entire button module (10), thereby effectively improving the strength of the button module. Furthermore, the conventional button module has a suspension mechanism disposed on the bottom plate of the lower layer 5, and the suspension mechanism 113 is connected to the fixed plate 12〇, so that the button module 100 can be more modularized, which is convenient in the manufacturing process. Into the assembly. 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 the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art of the present invention should be included in the following claims. For example, the elastomer 142 can also be made of a material of a transparent material. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a key module of a preferred embodiment. 2 is a schematic cross-sectional view of another preferred embodiment of the key module [main component symbol description] button module 100 spacer plate 160 key cap 112 motherboard 180 elastic member 140 scissors suspension mechanism 113 light guide plate 130 first bracket 115 thin circuit board 150 second bracket 117 elastic body 142 contact portion 144 11 200952016 first conductive portion 182 second conductive portion 152 first through hole 162 second through hole 132 third through hole 124 12