M441199 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種按鍵模組，特別是指一種發光 鍵盤的按鍵模組。 【先前技術】 現有的發光鍵盤的按鍵模組，方便使用者在光線昏 暗的環境下操作。當按壓按鍵模組的鍵帽，鍵帽連動對 應的剪式支架且壓縮對應的彈性元件使其與薄膜電路板 ’產生對應按壓的電路訊號。而發光單元包括設置於薄 膜電路板上方並朝向鍵帽的一發光二極體及一罩覆發光 二極體的導光罩。 然而，若發光單元的導光罩高度過高時，且發光單 元恰位於按壓鍵帽的下移行程中，當使用者按壓鍵帽， 帶動鍵帽下移而頂抵發光單元的導光罩，使彈性元件及 剪式支架無法完成預定位移的行程，致使彈性元件無法 與薄膜電路板形成良好的電連接，遂造成按鍵模組的按 壓手感較差。 【新型内容】 因此’本新型之目的，即在提供一種按壓手感較佳 的發光鍵盤的按鍵模組。 於是，本新型發光鍵盤的按鍵模組，包含一鍵帽、 一薄膜電路板、一底板、一彈性元件，及一發光單元。 該底板設置於該鍵帽下方，且形成一開槽；該薄膜 電路板設置於該底板上方且在該鍵帽下方，且對應該底 3 M441199 板的開槽位置為透光材質製成；該彈性元件設置於該鍵 帽與該薄膜電路板間，並頂抵於該鍵帽且提供該鍵帽恆 达離該薄膜電路板的彈性偏虔，且該鍵帽受力下壓，使 該彈性元件觸發該薄膜電路板’而產生對應的一電路訊 號，該發光單元包括一電連接該薄膜電路板且設置於該 薄膜電路板下表面，並容置於該底板的開槽的發光元件 ，該發光元件所產生的光線入射至該薄膜電路板，並使 射出的光線朝該鍵帽照明。 本新型之功效在於：透過發光元件設置薄膜電路板 的板體下表面’可降低導光罩的高度而呈薄型化，在設 計上可將導光罩的高度低於鍵帽的凹槽的深度，使鍵帽 下壓時，不易頂抵導光罩而不影響彈性元件及剪式支架 的預定位移的行程，使彈性元件與薄膜電路板形成良好 的電連接，且可改善按壓的手感。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效， 在以下配合參考圖式之二個較佳實施例的詳細說明中， 將可清楚地呈現。 在本新型被詳細描述之前，要注意的是，在以下的 說明内容中，類似的元件是以相同的編號來表示。 參閱圖1、圖2與圖3，本新型發光鍵盤的按鍵模組 的第較佳實施例置包含一鍵帽1、一剪式支架2、一彈 性元件3、一薄膜電珞板5、一底板6、一下蓋7,及一 發光單元8。 M441199 參閱圖2、圖4與圖5，鍵帽1的下表面凹陷形成— 凹槽11’鍵帽1包括一帽體12，及一自帽體12的周緣向 外延伸的帽簷13 ’也就是說帽體12與帽簷13共同界定 出凹槽11。剪式支架（plunger)2用以支撐鍵帽i，並可 升降地設置在鍵帽1下方且固定在底板6上方。彈性元 件（rubber dome)3設置於鍵帽1與薄膜電路板5間，並頂 抵於鍵帽1且提供鍵帽1恆遠離薄膜電路板5的彈性偏 鲁 壓’彈性元件3包括一本體31’及一由本體31内表面向 薄膜電路板5凸伸的抵壓部32。 薄膜電路板5設置於底板6上方且在鍵帽1下方， 並包括一板體51及一披覆在板體51上表面的絕緣表層 5 2。絕緣表層5 2形成一供彈性元件3的抵壓部3 2穿伸 的貫孔521，板體51的上表面形成一對應貫孔521位置 的導通部511 ，導通部511可為薄膜開關 (membraneswitch)或是其他觸發性開關。底板6設置於薄 • 膜電路板5下方’下蓋7設置於底板6下方，用以蓋合 底板6。如圖5所示的當鍵帽1受力下壓時，鍵帽1隨剪 式支架2朝底板6方向垂直移動，且鍵帽1會壓縮彈性 元件3，使彈性元件3的抵壓部32與薄膜電路板5的導 通部511接觸導通，產生對應按壓的一電路訊號。在本實 施例中，絕緣表層52為塑膠薄膜（myiar) ^ 參閱圖2與圖4,為了容置發光單元8，薄膜電路板. 5的絕緣表層52還形成一通孔522，薄膜電路板5的板 體51下表面形成一盲孔512 ’底板6形成一開槽61，開 5 槽61與薄膜電路板5的板體51的盲孔512相連通。發 光單元8包括一電連接薄膜電路板5的板體51且容置於 底板6的開槽61的發光元件81，及一罩覆薄膜電路板5 的絕緣表層52的通孔522上方並對應底板6的開槽61 仅置’且在鍵帽1下方的導光罩82。更切確地說，發光 疋件81設置於薄膜電路板5的下表面且容置於盲孔512 及底板6的開槽61，發光元件81的設置位置與導光罩 82的設置位置相對應。在本實施例中，發光元件8 1為發 光二極體（LED)。 參閱圖4，來說明從發光元件81到鍵帽1的光線行 進路徑。由於薄膜電路板5的板體51對應底板6的開槽 61位置為透光材質所製成，使光線易於穿透。導光罩32 具有一頂板821，導光罩82的頂板821形成一供發光元 件81光線透射的透光孔822，使導光罩82兼具聚光及透 光的功效。鍵帽1的帽體12形成一與導光罩82的透光 孔822位置相對應的穿孔121，在本實施例中鍵帽1的穿 孔121可為鍵帽1的符號區域（圖未示）如a、B或C。發 光元件81所產生的光線入射薄膜電路板5的板體51，經 過絕緣表層52的通孔522、導光罩82的透光孔822至鍵 帽1的穿孔121，也就是對鍵帽1的符號區域產生照明效 果。 參閱圖4與圖5，本實施例是將發光元件81設置薄 膜電路板5的下表面，可降低導光罩82的南度而呈薄型 化’在設計上可將導光罩82的高度低於鍵帽1的凹槽11 M441199 的深度’使鍵帽1受力下移時，鍵帽1不易頂抵導光罩 82而不會影響彈性元件3及剪式支架2的預定位移的行 程，使彈性元件3與薄膜電路板5形成良好的電連接， 從而提高按鍵模組按壓的靈敏度。 參閱圖6、圖7與圖8’為本新型發光鍵盤的按鍵模 組的第二較佳實施例大致與第一較佳實施例相同，主要 差異處為發光元件81設置位置不須與導光罩82設置位 ^ 置相對應，使發光元件8 1可另設他處。 參閱圖7、圖9與圖10，此外，按鍵模組還包含一 設置於薄膜電路板5的絕緣表層52上方的框架9，框架 9形成一開口 91 ’鍵帽1的帽體12凸伸於開口 9 i且外 露出框架9。發光單元8還包括一設置於薄膜電路板5的 板體51下表面且谷置於盲孔512及底板6的開槽61的 導光板（LGP)83，導光板83的設置位置與導光罩82設置 位置相對應’導光板83與發光元件81彼此相間隔，使 • 發光元件Η所產生的光線入射至導光板83並在導光板 83傳導行進。為了容置導光板83及發光元件81於薄膜 電路板5的盲孔512與底板6的開槽61，因此第二實施 例的薄膜電路板5的盲孔512與底板6的開槽61開設的 長度皆較如圖2所示的第一實施例來的長。參閱圖9，在 本實施例中，發光元件81設置位置是在框架9位置下方 ’但是在設計上，可將發光元件81相對於導光板Μ的 任一側邊，而於導光板83彼此間隔排列。 81到鍵 參閱圖9 ’用以說明第二實施例的發光元件 7 M441199 帽1光線行進路徑，其與圖4所干沾势 ^ ^ % ^ 、圆4所不的第一實施例的光線 仃進路徑大致相同， 差 主要差異處為發光元件81所產生的 光線入射至導光板83並在導光 的 仳等尤板83傳導行進，並藉由 導光板83入射至薄膜電路板5’故在此不詳加贅述。 一綜上所述，本新型發光鍵盤的按鍵模組，透過發光 &件81設置_電路板5的板體51下表面可降低導 光罩82的高度而呈薄型化’在設計上可將導光罩a的 尚度低於鍵帽！的凹槽n的深度，使鍵帽】下壓時，不 ^頂抵導光罩82而不影響彈性元件3及煎式支架2的預< 定位移的行程，使彈性元件3與薄膜電路板5形成良好 的電連接’且可改善按壓的手感，故確實能達成本新型 之目的。 惟以上所述者，僅為本新型之較佳實施例而已，當 不此以此限定本新型實施之範圍，即大凡依本新型申請 專利範圍及新型說明内容所作之簡單的等效變化與修飾 ’皆仍屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一立體圖，說明本新型發光鍵盤的按鍵模組的 第一較佳實施例； 圖2是一對應於圖1的立體分解圖； 圖3是一對應於圖1的俯視圖； 圖4是一沿圖3的4 — 4剖線的剖視示意圖，說明第一 較佳實施例的一發光元件到一鍵帽的光線行進路徑； 圖5是一說明該鍵帽受力下壓時，一彈性元件的抵壓 8 财41199 部與—薄膜電路板的導通部接觸導通，且該鍵帽不易頂抵 該導光罩的剖視示意圖； 圖6是一立體圖，說明本新型發光鍵盤的按鍵模組的 第二較佳實施例； 圖7是一對應於圖6的立體分解圖； 圖8是一對應於圖6的俯視圖； 圖9是一沿圖8的9 — 9剖線的剖視示意圖，說明第二 較佳實施例的一發光元件到一鍵帽的光線行進路徑；及 圖1 〇是一說明該鍵帽受力下壓時，一彈性元件的抵壓 4與一薄膜電路板的導通部接觸導通，且該鍵帽不易頂抵 该導光罩的剖視示意圖。 M441199 【主要元件符號說明】 1 ..........鍵帽 11 .........凹槽 12 .........帽體 121 .......穿孔 13 .........帽簷 2 ..........剪式支架 3 ..........彈性元件 31 .........本體 32 .........抵壓部 5 ..........薄膜電路板 51 .........板體 511 .......導通部 512 .......盲孔 52 .........絕緣表層 521 .......貫孔 522 .......通孔 6 ..........底板 61.........開槽 7 ..........下蓋 8 ..........發光單元 81 .........發光元件 82 .........導光罩 821 .......頂板 822 .......透光孔 83 .........導光板 9 ..........框架 91.........開口 10M441199 V. New description: [New technical field] The present invention relates to a button module, in particular to a button module of a light-emitting keyboard. [Prior Art] The key module of the existing illuminated keyboard is convenient for the user to operate in a dimly lit environment. When the key cap of the button module is pressed, the key cap interlocks the corresponding scissor bracket and compresses the corresponding elastic member to cause a corresponding pressing circuit signal with the thin film circuit board. The light-emitting unit comprises a light-emitting diode disposed above the film circuit board and facing the keycap and a light guide cover covering the light-emitting diode. However, if the height of the light guide cover of the light emitting unit is too high, and the light emitting unit is located in the downward moving stroke of the pressing key cap, when the user presses the key cap, the key cap is moved downward to abut the light guide cover of the light emitting unit. The elastic element and the scissor bracket cannot complete the stroke of the predetermined displacement, so that the elastic element cannot form a good electrical connection with the thin film circuit board, and the pressing feeling of the button module is poor. [New content] Therefore, the object of the present invention is to provide a button module for a light-emitting keyboard having a better pressing feel. Therefore, the button module of the novel illuminated keyboard comprises a keycap, a thin film circuit board, a bottom plate, an elastic component, and a light emitting unit. The bottom plate is disposed under the keycap and forms a slot; the thin film circuit board is disposed above the bottom plate and below the key cap, and the slotted position corresponding to the bottom 3 M441199 plate is made of a light transmissive material; An elastic member is disposed between the keycap and the thin film circuit board and abuts against the keycap and provides elastic deformation of the keycap from the thin film circuit board, and the keycap is pressed down to make the elastic The component triggers the thin film circuit board to generate a corresponding circuit signal. The light emitting unit includes a light-emitting component electrically connected to the thin film circuit board and disposed on the lower surface of the thin film circuit board and accommodated in the bottom plate. The light generated by the light-emitting element is incident on the thin film circuit board, and the emitted light is illuminated toward the keycap. The effect of the novel is that the lower surface of the plate body of the thin film circuit board through the light-emitting element can be reduced in thickness by reducing the height of the light guide cover, and the height of the light guide cover can be designed to be lower than the depth of the groove of the key cap. When the keycap is pressed down, it is difficult to abut against the light guide cover without affecting the stroke of the predetermined displacement of the elastic member and the scissor holder, so that the elastic member forms a good electrical connection with the thin film circuit board, and the feeling of pressing can be improved. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Before the present invention is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals. Referring to FIG. 1 , FIG. 2 and FIG. 3 , a preferred embodiment of the button module of the novel illuminated keyboard includes a key cap 1 , a scissor bracket 2 , an elastic component 3 , and a thin film electric raft 5 . The bottom plate 6, the lower cover 7, and a light emitting unit 8. M441199 Referring to Figures 2, 4 and 5, the lower surface of the keycap 1 is recessed - the recess 11' the keycap 1 comprises a cap 12 and a cap 13' extending outwardly from the periphery of the cap 12 It is said that the cap 12 and the cap 13 together define a recess 11. A shearing bracket 2 is used to support the keycap i and is disposed below the keycap 1 and is fixed above the bottom plate 6 in a liftable manner. A rubber dome 3 is disposed between the keycap 1 and the thin film circuit board 5 and abuts against the keycap 1 and provides a resilient biasing of the keycap 1 away from the thin film circuit board 5. The elastic component 3 includes a body 31. And a pressing portion 32 which is protruded from the inner surface of the body 31 toward the film circuit board 5. The thin film circuit board 5 is disposed above the bottom plate 6 and below the keycap 1, and includes a plate body 51 and an insulating surface layer 52 coated on the upper surface of the plate body 51. The insulating surface layer 52 forms a through hole 521 through which the pressing portion 32 of the elastic member 3 extends. The upper surface of the plate body 51 forms a conductive portion 511 corresponding to the position of the through hole 521, and the conductive portion 511 can be a membrane switch. ) or other trigger switches. The bottom plate 6 is disposed under the thin film circuit board 5. The lower cover 7 is disposed below the bottom plate 6 for covering the bottom plate 6. As shown in FIG. 5, when the keycap 1 is pressed down, the keycap 1 vertically moves in the direction of the bottom plate 6 with the scissor bracket 2, and the keycap 1 compresses the elastic member 3 so that the pressing portion 32 of the elastic member 3 The conductive portion 511 is in contact with the conductive portion 511 of the thin film circuit board 5 to generate a circuit signal corresponding to the pressing. In this embodiment, the insulating surface layer 52 is a plastic film (myiar). Referring to FIG. 2 and FIG. 4, in order to accommodate the light emitting unit 8, the insulating surface layer 52 of the thin film circuit board 5 further defines a through hole 522 for the thin film circuit board 5. A blind hole 512 is formed on the lower surface of the plate body 51. The bottom plate 6 forms a slot 61, and the opening 5 slot 61 communicates with the blind hole 512 of the plate body 51 of the thin film circuit board 5. The light-emitting unit 8 includes a light-emitting element 81 electrically connected to the plate body 51 of the thin-film circuit board 5 and accommodated in the slot 61 of the bottom plate 6, and a through hole 522 covering the insulating surface layer 52 of the thin film circuit board 5 and corresponding to the bottom plate The slot 61 of 6 is only placed "and the light guide 82 below the keycap 1. More precisely, the light-emitting element 81 is disposed on the lower surface of the thin-film circuit board 5 and accommodated in the blind hole 512 and the slot 61 of the bottom plate 6. The position of the light-emitting element 81 corresponds to the position of the light guide cover 82. . In the present embodiment, the light-emitting element 81 is a light-emitting diode (LED). Referring to Fig. 4, the light path from the light-emitting element 81 to the keycap 1 will be explained. Since the plate body 51 of the film circuit board 5 is made of a light-transmitting material corresponding to the groove 61 of the bottom plate 6, the light is easily penetrated. The light guide cover 32 has a top plate 821, and the top plate 821 of the light guide cover 82 forms a light transmission hole 822 for transmitting light from the light-emitting element 81, so that the light guide cover 82 has the functions of concentrating and transmitting light. The cap body 12 of the key cap 1 forms a through hole 121 corresponding to the position of the light transmission hole 822 of the light guide cover 82. In the embodiment, the through hole 121 of the key cap 1 can be a symbol area of the key cap 1 (not shown). Such as a, B or C. The light generated by the light-emitting element 81 is incident on the plate body 51 of the thin film circuit board 5, through the through hole 522 of the insulating surface layer 52, the light transmission hole 822 of the light guide cover 82, and the through hole 121 of the key cap 1, that is, the key cap 1 The symbol area produces a lighting effect. Referring to FIG. 4 and FIG. 5, in the present embodiment, the light-emitting element 81 is disposed on the lower surface of the thin film circuit board 5, which can reduce the southness of the light guide cover 82 and is thinned. The design can lower the height of the light guide cover 82. When the depth of the groove 11 M441199 of the keycap 1 causes the keycap 1 to be forced downward, the keycap 1 does not easily abut against the light guide cover 82 without affecting the stroke of the predetermined displacement of the elastic member 3 and the scissor bracket 2, The elastic element 3 is formed into a good electrical connection with the thin film circuit board 5, thereby improving the sensitivity of the pressing of the key module. Referring to FIG. 6 , FIG. 7 and FIG. 8 ′, a second preferred embodiment of the key module of the illuminating keyboard is substantially the same as the first preferred embodiment. The main difference is that the position of the illuminating element 81 does not need to be guided. The cover 82 is disposed to correspond to the position so that the light-emitting element 81 can be provided elsewhere. Referring to FIG. 7, FIG. 9, and FIG. 10, the button module further includes a frame 9 disposed above the insulating surface 52 of the thin film circuit board 5. The frame 9 forms an opening 91. The cap 12 of the keycap 1 protrudes from The opening 9 i and the frame 9 are exposed. The light-emitting unit 8 further includes a light guide plate (LGP) 83 disposed on the lower surface of the plate body 51 of the film circuit board 5 and having a valley in the blind hole 512 and the opening 61 of the bottom plate 6. The light guide plate 83 is disposed at a position and a light guide cover. The arrangement position 82 corresponds to the fact that the light guide plate 83 and the light-emitting element 81 are spaced apart from each other such that the light generated by the light-emitting element 入射 is incident on the light guide plate 83 and travels in the light guide plate 83. In order to accommodate the light guide plate 83 and the light-emitting element 81 in the blind hole 512 of the thin film circuit board 5 and the opening 61 of the bottom plate 6, the blind hole 512 of the thin film circuit board 5 of the second embodiment and the opening 61 of the bottom plate 6 are opened. The length is longer than that of the first embodiment shown in FIG. 2. Referring to FIG. 9, in the present embodiment, the light-emitting elements 81 are disposed at a position below the frame 9', but in design, the light-emitting elements 81 may be spaced apart from each other with respect to the light guide plate ,, and the light guide plates 83 may be spaced apart from each other. arrangement. 81 to key refer to FIG. 9' to illustrate the light path of the light-emitting element 7 M441199 of the second embodiment, which is the light path of the first embodiment of FIG. 4, which is the same as that of FIG. The path of the difference is substantially the same, and the main difference is that the light generated by the light-emitting element 81 is incident on the light guide plate 83 and is conducted by the light guide plate 83, and is incident on the thin film circuit board 5' by the light guide plate 83. This is not detailed. In summary, the button module of the new type of illuminated keyboard is provided with the lower surface of the plate body 51 of the circuit board 5 through the light-emitting & 81 to reduce the height of the light guide cover 82 and is thinned. The brightness of the light guide a is lower than the key cap! The depth of the groove n is such that when the key cap is pressed down, the light guide 82 is not abutted against the guide member 82 without affecting the pre-stationary displacement of the elastic member 3 and the frying bracket 2, so that the elastic member 3 and the thin film circuit The board 5 forms a good electrical connection' and improves the feel of the pressing, so that the object of the present invention can be achieved. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change and modification of the novel patent application scope and the new description content. 'All are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a first preferred embodiment of a key module of the present illuminated keyboard; FIG. 2 is an exploded perspective view corresponding to FIG. 1; FIG. 3 is a view corresponding to FIG. Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3, illustrating the light travel path of a light-emitting element to a keycap of the first preferred embodiment; Figure 5 is a view of the keycap When the force is pressed, the pressing portion of the elastic member is in contact with the conductive portion of the thin film circuit board, and the key cap is not easily abutted against the cross-sectional view of the light guide; FIG. 6 is a perspective view illustrating the present invention. A second preferred embodiment of the key module of the novel illuminated keyboard; FIG. 7 is an exploded perspective view corresponding to FIG. 6; FIG. 8 is a top view corresponding to FIG. 6. FIG. 9 is a 9-9 along FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a light traveling path of a light-emitting element to a keycap according to a second preferred embodiment; and FIG. 1 is a view showing a pressing force of an elastic member when the key cap is pressed down by force. Contacting with a conductive portion of a thin film circuit board, and the key cap is not easily abutted against the light guide A schematic cross-sectional view of the cover. M441199 [Description of main component symbols] 1 .......... Keycap 11 ......... Groove 12 .........Cap 121 ..... ..perforation 13 .........cap 檐 2 .......... scissor bracket 3 ..... elastic element 31 ........ . Body 32 .... pressing portion 5 ..... thin film circuit board 51 ... ... board body 511 .... conduction Part 512 ....... blind hole 52 .... insulating surface layer 521 .... through hole 522 .... through hole 6 ... .... bottom plate 61.........slot 7 .......... lower cover 8 ..........lighting unit 81 ... ...light-emitting element 82 .........light guide 821 . . . top plate 822 . . . light transmission hole 83 ... ... light guide plate 9 ..........Frame 91......... opening 10