M376827 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種電子輸入設備領域，尤其涉及一種用於滑鼠等電 子輸入設備的滾輪裝置。 【先前技術】 . 滑乳疋電腦的重要輸入設備，幾乎所有的電腦都配備了滑鼠，人 們可以利用滑氣的按鍵進行網頁的點選，還可以利用左右鍵之間的滾 _ 輪進仃翻頁動作等。現有的滑鼠的滾輪通常採用兩種方式產生開啟（或 導通）及關閉（開路）動作從而達到某種特定的滑a回應功能。 其中一種方式是利用磁簧開關，即以磁鐵來吸引磁簧管内的金屬 彈片接合在-起產生開關的導通動作，該種方式由於必須以高硬度的 材料來支標彈片，因此往往佔用的體積較大；且使用金屬彈片的接觸 來產生開關的導通動作’雜訊較大且容易產生耕磨損問題，從而影 曰元件的壽命，另外，該種方式需要有較強的磁力才能足夠將磁箸管 • β的彈片吸引接合在一起’因此’必須使用磁力較強的磁鐵，以致增 加了產品的成本。 另種方式是採用霍爾感應元件進行感應，即以磁鐵讓霍爾感應 元件作感應而產生導通及開_作，如圖丨所神為霍爾錢元件的 感應區域示意圖，其中，磁性件42，例如磁鐵，設置于霍爾感應元件 40的正上方，且必須保持磁性件42的磁力線切（以分佈於一共面的 磁力線表不之）垂直霍爾感應元件4〇的表面以相對於磁性件42的徑 向磁场回應’如此霍爾感應元件4〇方可位於霍爾感應元件40與磁性 3 置於空間巾’感應區域分糊餅丫、γ韻x_z平面，本創作滾輪裝 置的磁力感應件14 (磁阻感測器晶片）除了可設置在垂直且經過具有 磁性件關錄徑向方_位置上，村設置在其他可受滾輪上的磁 !生件16感應的位置’即具有雜侧的雜徑面切面方向與其他偏置 位置。 本創作的絲裝置翻於各種需要使職鍵開關魏的電子輸入 設備’如滑鼠、鍵盤及遙控器等，如滑鼠的細，鍵盤音量鍵的 調整等。如圖6所示，其為本創作滾輪裝置第—較佳實施例所應用的電 子輸入設備的内部結構示意圖。電子輸人設備丨⑻為連接_電腦的滑 紙’其包括滚輪裝置10、微處理器20和印刷電路板（PCB) 3〇。滾輪裝 置10包括滾輪12及磁力感應件丨4，滾輪12可繞轉軸122轉動，且轉軸丨22 與印刷電路板3G平行。滾輪12可為圓片、圓盤、圓柱或圓球狀的任意 一種，也可為非圓狀，在本較佳實施例中，滾輪12為圓盤狀。沿滾輪 12的周面分佈有磁性件丨6，在本較佳實施例中，磁性件16為磁鐵。 磁力感應件14為磁阻感測器（MR Sensor 1C)，其設置在滾輪12下方， 並與微處理器20連接，且設置在印刷電路板3〇上受磁性件16感應的位 置，在本較佳實施例中，磁力感應件14設置在滾輪12的正下方，微處 理器20也設置在印刷電路板3〇上。該磁阻感測器為單一整體的忙（積 體電路）晶片，集成CMOS感測器和磁阻組件於一體，且内置有感應放 大電路。因此，相比于現有技術採用霍爾元件感應的滾輪裝置，無需 在印刷電路板30上設置額外的感應放大電路，成本較低，且該種磁阻 感測器通過將CMOS的1C晶片與磁阻元件的原片體結合為一體，可得到 M376827 更小的體積’使滚輪裝置1G的印刷電路板3G有更大的設計空間。 再者，本創作採用的磁阻感應器與霍爾感應元件相比，其對磁性 件16的感紐域較大’ @此可設置磁力感齡M於與滾輪η平行的位 置上’或設在麵輪12垂直且不經過其轉财向的位置（偏置位置）， (如圖5將的水平面的磁力感應件14沿該水平面移動適當位置或將垂 直面的磁力感應件14沿麵直面鑛適當位置時，磁力感應件M均可 又到感應）。圖7所示為本創作滾輪裝置第二實施例所應用的電子輸入 設備的内部結構示意圖，其中繞轉軸122垂直於印刷電路板3〇，其他元 件的配置可與圖6類似，於此不再贅述。 可以理解的，因本創作採用磁力感應件，其感應區域較傳統霍爾 元件廣，因此，滾輪12上的磁性件16的配置亦可有不同的方式，但達 到感應的目的。如圖8、圖9'圖10、圖11、圖12與圖13所示為滚輪上的 磁性件16的配置側面示意圖’圖8與圖9中配置單一磁性件16於滚輪12 上的任一位置，且磁性件16的兩極位於相同徑長的徑面上。圖1〇中複 數個磁性件16間隔配置於相近徑長的徑面上，且磁性件16的兩極位於 相同徑長的徑面上；圖11中複數個磁性件丨6連續地配置於相近徑長的徑 面上’且磁性件16的兩極位於相同徑長的徑面上；圖12中複數個磁性 件16連續地或間隔地配置於不同徑長的徑面上，且磁性件π的兩極位 於相同徑長的徑面上；圖13中單一磁性件16配置於徑面上，且磁性件 16的兩極位於不同徑長的徑面上。其次，雖然圖8、圖9、圖1〇、圖η、 圖12與圖13所示之磁力感應件14系對於磁性件16的徑向磁場作回應， 但如圖2所表示，上述的磁性件16配置亦可應欲於磁力感應件μ系對於 7M376827 V. New description: [New technical field] This creation relates to the field of electronic input devices, and more particularly to a roller device for an electronic input device such as a mouse. [Prior Art] . The important input device of the squeaky computer, almost all computers are equipped with a mouse, people can use the slippery button to click on the webpage, and can also use the scrolling between the left and right buttons. Turning pages, etc. Existing mouse rollers typically produce an open (or open) and closed (open) action in two ways to achieve a particular slip a response function. One way is to use a reed switch, that is, a magnet to attract the metal shrapnel in the reed switch to engage and actuate the conduction of the switch. This method is required to occupy the shrapnel with a high hardness material. Larger; and the contact of the metal shrapnel is used to generate the conduction action of the switch. The noise is large and the problem of ploughing and wear is easy to occur, thereby affecting the life of the component. In addition, this method requires a strong magnetic force to be sufficient for the magnetic cymbal. Tube • The shrapnel of β attracts the joints together. Therefore, magnets with stronger magnetic force must be used, which increases the cost of the product. Another way is to use Hall sensing element to sense, that is, the magnet makes the Hall sensing element to induce conduction and opening, as shown in the figure, the sensing area of the Hall element, wherein the magnetic part 42 For example, a magnet is disposed directly above the Hall sensing element 40, and the magnetic line of the magnetic member 42 must be kept cut (to be distributed over a coplanar magnetic field line) to the surface of the vertical Hall sensing element 4 以 relative to the magnetic member. The radial magnetic field response of 42 is such that the Hall sensing element 4 can be located in the Hall sensing element 40 and the magnetic 3 is placed in the space towel 'induction area, the paste area γ, the γ rhyme x_z plane, the magnetic induction part of the creation roller device 14 (magnetoresistive sensor wafer) except that it can be placed in a vertical position and passed through a radial position with a magnetic member, the position of the village is set on the other magnetically-receivable member 16 that can be received by the roller. The direction of the cross section of the miscellaneous surface is offset with other offset positions. The silk device of the present invention is turned over to various electronic input devices such as a mouse, a keyboard and a remote controller, such as a mouse, a keyboard volume key, and the like. As shown in Fig. 6, it is an internal structure diagram of an electronic input device to which the first embodiment of the present invention is applied. The electronic input device (8) is a slip-on computer connected to the computer, which includes a scroll device 10, a microprocessor 20, and a printed circuit board (PCB). The roller device 10 includes a roller 12 and a magnetic induction member 丨4. The roller 12 is rotatable about a rotating shaft 122, and the rotating shaft 22 is parallel to the printed circuit board 3G. The roller 12 may be any one of a disc, a disc, a cylinder or a spherical shape, or may be non-circular. In the preferred embodiment, the roller 12 has a disk shape. A magnetic member 丨6 is distributed along the circumferential surface of the roller 12. In the preferred embodiment, the magnetic member 16 is a magnet. The magnetic induction member 14 is a magnetoresistive sensor (MR Sensor 1C), which is disposed under the roller 12 and connected to the microprocessor 20, and is disposed on the printed circuit board 3 at a position sensed by the magnetic member 16. In the preferred embodiment, the magnetic induction member 14 is disposed directly below the roller 12, and the microprocessor 20 is also disposed on the printed circuit board 3. The magnetoresistive sensor is a single integrated busy (integrated circuit) chip that integrates a CMOS sensor and a magnetoresistive component, and has an inductive amplification circuit built in. Therefore, compared with the prior art using the Hall element sensing roller device, there is no need to provide an additional inductive amplifying circuit on the printed circuit board 30, and the cost is low, and the magnetoresistive sensor passes the CMOS 1C chip and the magnetic device. The original body of the resistive element is integrated into one body, and the smaller volume of the M376827 can be obtained, so that the printed circuit board 3G of the roller device 1G has a larger design space. Furthermore, the magnetoresistive sensor used in the present invention has a larger sense of sensitivity to the magnetic member 16 than the Hall sensing element. This can set the magnetic age M to be parallel to the roller η. In a position (offset position) in which the face wheel 12 is vertical and does not pass through the turning direction, (the magnetic induction member 14 of the horizontal plane as shown in FIG. 5 is moved along the horizontal plane or the magnetic induction member 14 of the vertical plane is face-to-faced. When the mine is in the proper position, the magnetic induction element M can be sensed again. 7 is a schematic view showing the internal structure of an electronic input device to which the second embodiment of the present invention is applied, wherein the winding shaft 122 is perpendicular to the printed circuit board 3, and the configuration of other components can be similar to that of FIG. Narration. It can be understood that since the present invention uses a magnetic induction member, the sensing area is wider than that of the conventional Hall element. Therefore, the arrangement of the magnetic member 16 on the roller 12 can be different, but the purpose of sensing is achieved. 8, FIG. 9, FIG. 10, FIG. 11, FIG. 12 and FIG. 13 are schematic side views showing the arrangement of the magnetic members 16 on the roller. FIG. 8 and FIG. 9 are any of the single magnetic members 16 disposed on the roller 12. Position, and the two poles of the magnetic member 16 are located on the diameter of the same diameter. In FIG. 1 , a plurality of magnetic members 16 are disposed on the radial surfaces of the same diameter and length, and the two poles of the magnetic member 16 are located on the radial surfaces of the same diameter and length; in FIG. 11 , the plurality of magnetic members 丨 6 are continuously arranged in the close diameters. The long diameter surface 'and the two poles of the magnetic member 16 are located on the diameter surface of the same diameter and length; in FIG. 12, the plurality of magnetic members 16 are arranged continuously or at intervals on the diameter surfaces of different diameters, and the two poles of the magnetic member π The single magnetic member 16 is disposed on the radial surface of FIG. 13 , and the two poles of the magnetic member 16 are located on the radial surfaces of different radial lengths. Next, although the magnetic induction members 14 shown in Figs. 8, 9, 1 and η, Figs. 12 and 13 are responsive to the radial magnetic field of the magnetic member 16, as shown in Fig. 2, the above magnetic properties are shown. Piece 16 configuration can also be applied to the magnetic induction device μ system for 7