201106238 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種感應裝置，尤其涉及一種旋轉感應裝置 及一種具有旋轉感應裝置的可攜式電子裝置。 【先前技名衧】 [0002] 目前的電子裝置如手機等，通常具有遊戲的功能《玩遊 戲時，通過上下左右按壓方向鍵來控制顯示屏上的目標 移動。但是，在用這些電子裝置玩赛車遊戲，用方向鍵 來控制目標的移動會很不方便，而且也缺乏赛車的真實 感。另外，顯示屏的顯示方向随著電子裝置的旋轉而旋 轉逐漸成為電子裝置的一種發展方向相應地，感測旋 轉的裝置的市場需求也逐漸增大。 【發明内容】 [0003] 有鑒於此，有必要提供一種可以感測旋轉的旋轉感應裝 置。 ： ：| - .... - ; : ；: [0004] 還有必要提供一種可以感測旋轉的可攜式電子裝置。 [0005] —種旋轉感應裝置，其包括電容模組、指針模組及偵測 電路。電容模組包括上基板及下基板。上基板上設有多 個間隔設置的上極板。下基板上設有與所述多個上極板 —相對且間隔設置的多個下極板。所述多個上極板及 多個下極板均導電。指針模組包括指針。指針轉動地設 於上基板與下基板之間。該指針包括第一端，該第一端 在隨著指針相對於電容模組轉動時位於不同的上極板和 下極板之間。偵測電路與多個上極板及多個下極板電性 連接，用於偵測每個上極板與其對應的下極板之間的電 098127331 表單編號A0101 第4頁/共20頁 0982046851-0 201106238 容值，並根據偵測到的電容值的變化計算所述第一端的 位置。 [0006] Ο [0007]Ο [0008] 一種可攜式電子裝置，其包括本體及設於該本體内的旋 轉感應裝置。旋轉感應裝置包括電容模組、指針模組及 偵測電路。電容模組包括上基板及下基板。上基板上設 有多個間隔設置的上極板。下基板上設有與所述多個上 極板一一相對且間隔設置的多個下極板。所述多個上極 板及多個下極板均導電。指針模組包括轉動地設置於上 基板與下基板之間的指針。該指針用於在相對於電容模 組旋轉時，沿該旋轉方向依次改雙至少一姻上極板與其 對應的下極板之間的電容值。偵測電鑫與多個上極板及 多個下極板電性連接’用於债測每個上極板與其對應的 下極板之間的電容值’並根據偵測到的電容值的變化計 算所述指針的位置。 相較於先前技術，所述旋轉感應裝置及可攜式電子裝置 ，通過設置電容模組及可相對於電容模組旋轉的指針， 使得當指針相對於電容模組旋轉時，電容模組上至少一 個上極板及其對應的下極板之間的電容發生變化，從而 可以根據该電容的變化感測指針與電容模組之間的相對 旋轉。 【實施方式】 下面將結合附圖，舉以下較佳實施方式並配合圖式詳細 描述如下。 [0009] 098127331 如圖1所不，為第一實施方式提供的一種可攜式電子裝置 200的立體圖。可攜式電子襞置2〇〇包括本體2〇2及設於 表單編號Α0101 第5 1/共20頁 0982046851-0 201106238 該本體202内的旋轉感應裝置1〇〇。在本實施方式中，可 攜式電子裝置200為手機，該旋轉感應裝置1〇〇固設於可 攜式電子裝置200的背面。 [0010] 請參閱圖2及圖3，旋轉感應裝置1〇〇包括電容模組1〇及指 針模組20。 [0011] 電容模組10包括下基板12及上基板14。在本實施方式中 ，下基板12及上基板14為相對設置的圓形平板且不導電 。下基板12在與上基板14相對的表面上設有多個導電的 長方形下極板122。多個下豳板122間隔均勻地分佈在— 圓環上。下基板12上遠開設有第一定位孔124，且第_定 位孔124位於多個下極板122所在圓環的中心。上基板14 在與下基板12相對的表面上設有多個長方形上極板M2。 上極板142與下極板122 —一相對且導電。即，多個上極 板142也間隔均勻分佈在同一圓環上。上基板η的中心亦 開設有與第一定位孔124相對的第二定位碼144，且該第 一疋位孔144位於多個上極板'142所在圓>環的中心。在本 實施方式中，下基板12上設有100個下極板122，上基板 14上相應地設有100個上極板142，因此，每兩個下極板 122或兩個上極板142之間的圓心角為3. 6。。 [0012] 指針模組20設置於下基板12和上基板14之間，其包括圓 柱形轉轴22及轉動地設於轉軸22上的指針24。轉軸22的 直徑大致等於第一定位孔124和第二定位孔144的内徑， 用於裝設於第一定位孔124和第二定位孔144内。 [0013] 指針24設置於下基板12和上基板14之間。指針24包括連 098127331 表單編號A0101 第6頁/共20頁 201106238 Ο [0014] 接部242及對稱地分設於該連接部242兩端的第一端244 及第二端246。連接部242的中心開設有轴孔248。該軸 孔248的内徑大致等於轉軸22的直徑，使得轉軸22可穿過 軸孔248，以將指針24轉動地固定於轉軸22上。軸孔248 的中心到第一端244及第二端246的端部的長度大於下極 板122所在圓環的外半徑。在下極板122所在圓環的圓周 方向上，該第一端244與第二端246的寬度大致等於下極 板122和上極板142的寬度。在本實施方式中，指針24具 有磁性且不導電’第一端244為北極（Ν極），第二端246 為南極（S極）。 Ο 請一併參閱圖4，組裝該旋轉感應裝置1〇〇時，先將轉轴 22的一端插入第一定位孔124並固定。然後，將指針24通 過轴孔248可轉動地套設於轉轴22上。最後，將轉轴22的 另一端插入第二定位孔144並固定，並使每個下極板122 與一上極板142對準《每個下極板122 '該下極板122對 應的上極板142以及該下極板122與上極板142之間的間 隙構成一平板電容器。因此’該旋轉感應裝置1〇〇上形成 多個平板電容器。每個平板電容έ具有一初始電容值， 且該些平板電容器的初始電容值相等。第一端244及第二 端246位於下極板122與上極板142之間，並可在不同的 下極板122和上極板142之間移動。 [0015] 該旋轉感應裝置100還包括偵測電路30。該偵測電路30同 時與所述多個下極板122、多個上極板142電性連接。該 貞測電路3 0中存儲初始電容值及一閾值。該读測電路3 〇 用於偵測各下極板122與相應的上極板142之間的當前電 098127331 表單編號Α0101 第7頁/共20頁 0982046851-0 201106238 容值，並將測得的多個當前電容值與初始電容值進行比 較，以計算第一端244和第二端246的位置，並根據第一 端244和第二端246的位置變化計算出電容模組10的旋轉 方向。 [0016] 使用可攜式電子裝置200時，可將可攜式電子裝置200放 置在一平臺（圖未示）上，下基板12的外表面與平臺接 觸。旋轉本體202，電容模組10隨之旋轉，指針24則在地 磁場的作用下保持原有位置，因此電容模組10相對於指 針24旋轉。當該指針24的第一端244與第二端246分別位 於某一下極板122及相應的上極板142之間時，則由於該 下極板122與上極板142之間的介質改變了，因此該下極 板122與上極板142所構成的電容器的電容值也會發生變 化，而其它下極板122與上極板142之間的電容值仍為初 始電容值。在本實施方式中，當第一端244或第二端246 位於某一下極板122及相應的上極板142之間時，該下極 板122與上極板142之間的電容值變大。偵測電路30偵測 各下極板122與相應的上極板142之間的當前電容值，將 偵測到的多個當前電容值與初始電容值進行比較，若其 中一當前電容值與初始電容值之差大於一閾值，則表明 第一端244與第二端246的其中之一位於該當前電容值所 對應的下極板122與上極板142之間，由此即可確定第一 端244、第二端246的位置。當指針24旋轉時，所述第一 端244、第二端246相對於電容模組10的位置逐漸變化， 相應地，各下極板122與上極板142之間的電容值沿該旋 轉方向依次變化。該偵測電路30根據第一端244、第二端 098127331 表單編號A0101 第8頁/共20頁 0982046851-0 201106238 246與電容模組10的相對位置的變化，計算出電容模組1〇 的旋轉方向。該可攜式電子裝置200即可根據電容模組1〇 的旋轉方向來控制該可攜式電子裝置200的運行。 [0017] 可以理解’指針24也可不包括所述第二端246，相應地， 連接部242為南極（S極）。下極板122和上極板142也可呈 橢圓形、正方形等其它形狀的環形分佈，只要使指針24 的至少一端的端部到轉轴22的中心轴線的距離大於下極 板12 2和上極板14 2到轉軸2 2的中心軸線的距離即可，即 0 指針24的至少一端始終位於下極板122所在環和上極板 142所在環之間。另外’下極板122和上極板142也可呈 弧形分佈。 [0018] 圖5及圖6所示為第二實施方式提供的旋轉感應裝置i〇〇a ’其與第一實施方式提供的旋轉感應裝置1〇〇的不同之處 在於，上基板14a的中心開設有通孔144a，轉軸22a上設 有定位環222a ’且該轉軸22a的一端部設有螺紋224a， 該轉轴22a設有螺紋224a的一端穿過通孔144a，並與螺 Ο 栓226a螺合，從而使上基板14a可轉動地設於定位環 222a與螺栓226a之間。指針24a固定於轉轴22a上，該轉 軸22a的另一端可轉動地插入第一定位孔124a中。兩個連 接塊16a將上基板14a與下基板12a固定連接，從而使該 上基板14a、下基板12a與轉轴22a及指針24a可相對轉動 。將該旋轉感應裝置100a組装到可攜式電子裝置（圖未 示）時，將轉軸22a固定於可攜式電子裝置的本體’而上 基板14a、下基板12a則與本體轉動連接，且下基板12a 的外表面略突出於本體的背面。使用時，該上基板14a、 098127331 表單編號A0101 第9頁/共20頁 0982046851-0 201106238 下基板12a相對於可搞式電子裝置的本體、轉軸22a及指 針2 4a轉動。 [0019] 所述旋轉感應裝置通過設置所述電容模組及可相對於電 容模組旋轉的指針，使得當指針相對於電容模組旋轉時 ，電容模組上至少一個上極板及其對應的下極板之間的 電容發生變化，從而可以根據該電容的變化感測指針與 電容模組之間的相對旋轉。 [0020] [0021] [0022] [0023] [0024] [0025] [0026] [0027] 综上所述，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隹實施方式，本 發明之範圍並不以上述實施方式為限，舉凡熟悉本案技 藝之人士援依本發明之精神所作之等效修飾威變化，皆 應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係第一實施方式提供的可攜式電子裝置的立體圖。 圖2係圖1中的可攜式電子等置的旋轉感應裝置的分解圖 〇 圖3係圖2中的旋轉感應裝置的另一視角分解圖。 圖4係圖2中的旋轉感應裝置的刮面示意圖。 圖5係第二實施方式提供的旋轉感應裝置的分解圖。 圖6係圖5中的旋轉感應裝置的剖面示意圖。 【主要元件符號說明】 旋轉感應裝置 下基板 1〇〇， 100a !2, 12a201106238 VI. Description of the Invention: [Technical Field] The present invention relates to an inductive device, and more particularly to a rotating sensing device and a portable electronic device having a rotating sensing device. [Previous technical name] [0002] Current electronic devices, such as mobile phones, usually have the function of a game. When playing a game, the target movement on the display screen is controlled by pressing the up and down buttons. However, in playing games with these electronic devices, it is inconvenient to use the arrow keys to control the movement of the target, and it lacks the realism of the car. In addition, the display direction of the display screen gradually rotates with the rotation of the electronic device to become a development direction of the electronic device. Accordingly, the market demand for the device for sensing the rotation is gradually increasing. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a rotation sensing device that can sense rotation. : :| - .... - ; : :: [0004] It is also necessary to provide a portable electronic device that can sense rotation. [0005] A rotation sensing device includes a capacitor module, a pointer module, and a detection circuit. The capacitor module includes an upper substrate and a lower substrate. The upper substrate is provided with a plurality of upper plates arranged at intervals. The lower substrate is provided with a plurality of lower plates arranged opposite to the plurality of upper plates. The plurality of upper plates and the plurality of lower plates are electrically conductive. The pointer module includes a pointer. The pointer is rotatably disposed between the upper substrate and the lower substrate. The pointer includes a first end that is located between the different upper and lower plates as the pointer rotates relative to the capacitive module. The detecting circuit is electrically connected to the plurality of upper plates and the plurality of lower plates for detecting the electric power between each upper plate and its corresponding lower plate. 098127331 Form No. A0101 Page 4 / Total 20 pages 0904456851 -0 201106238 A capacitance value, and the position of the first end is calculated based on the detected change in capacitance value. [0007] A portable electronic device includes a body and a rotation sensing device disposed in the body. The rotation sensing device comprises a capacitor module, a pointer module and a detection circuit. The capacitor module includes an upper substrate and a lower substrate. A plurality of spaced upper plates are provided on the upper substrate. The lower substrate is provided with a plurality of lower plates which are disposed one above the other and spaced apart from the plurality of upper plates. The plurality of upper plates and the plurality of lower plates are electrically conductive. The pointer module includes a pointer rotatably disposed between the upper substrate and the lower substrate. The pointer is used to sequentially change the capacitance between the at least one upper plate and the corresponding lower plate in the direction of rotation when rotating relative to the capacitor module. Detecting the electrical connection between the plurality of upper plates and the plurality of lower plates for detecting the capacitance value between each upper plate and its corresponding lower plate and based on the detected capacitance value The change calculates the position of the pointer. Compared with the prior art, the rotation sensing device and the portable electronic device provide at least a capacitor module and a pointer rotatable relative to the capacitor module, so that when the pointer rotates relative to the capacitor module, at least the capacitor module The capacitance between an upper plate and its corresponding lower plate changes, so that the relative rotation between the pointer and the capacitor module can be sensed according to the change in the capacitance. [Embodiment] Hereinafter, the following preferred embodiments will be described in detail with reference to the accompanying drawings. 098127331 is a perspective view of a portable electronic device 200 provided by the first embodiment, as shown in FIG. The portable electronic device 2 includes a main body 2〇2 and is provided on the form number Α0101, 5 1/20, 0982046851-0 201106238, the rotation sensing device 1 in the body 202. In the present embodiment, the portable electronic device 200 is a mobile phone, and the rotation sensing device 1 is fixed to the back of the portable electronic device 200. Referring to FIG. 2 and FIG. 3, the rotation sensing device 1A includes a capacitor module 1A and a pointer module 20. [0011] The capacitor module 10 includes a lower substrate 12 and an upper substrate 14. In the present embodiment, the lower substrate 12 and the upper substrate 14 are oppositely disposed circular flat plates and are not electrically conductive. The lower substrate 12 is provided with a plurality of electrically conductive rectangular lower plates 122 on the surface opposite to the upper substrate 14. The plurality of lower jaws 122 are evenly spaced apart on the - ring. A first positioning hole 124 is defined in the lower substrate 12, and the first positioning hole 124 is located at the center of the ring where the plurality of lower plates 122 are located. The upper substrate 14 is provided with a plurality of rectangular upper plates M2 on the surface opposite to the lower substrate 12. The upper plate 142 is opposite to the lower plate 122 and is electrically conductive. That is, the plurality of upper plates 142 are also evenly spaced on the same ring. A second positioning code 144 opposite to the first positioning hole 124 is also formed in the center of the upper substrate η, and the first clamping hole 144 is located at the center of the circle of the plurality of upper plates '142. In the present embodiment, the lower substrate 12 is provided with 100 lower plates 122, and the upper substrate 14 is correspondingly provided with 100 upper plates 142. Therefore, each of the two lower plates 122 or the two upper plates 142 The central angle between the points is 3.6. . [0012] The pointer module 20 is disposed between the lower substrate 12 and the upper substrate 14, and includes a cylindrical shaft 22 and a pointer 24 rotatably disposed on the shaft 22. The diameter of the rotating shaft 22 is substantially equal to the inner diameters of the first positioning hole 124 and the second positioning hole 144 for mounting in the first positioning hole 124 and the second positioning hole 144. [0013] The pointer 24 is disposed between the lower substrate 12 and the upper substrate 14. The pointer 24 includes a connection 098127331 Form No. A0101 Page 6 / Total 20 pages 201106238 Ο [0014] The connecting portion 242 and the first end 244 and the second end 246 symmetrically disposed at opposite ends of the connecting portion 242. A shaft hole 248 is opened in the center of the connecting portion 242. The inner diameter of the shaft bore 248 is substantially equal to the diameter of the shaft 22 such that the shaft 22 can pass through the shaft bore 248 to rotationally secure the pointer 24 to the shaft 22. The length of the center of the shaft hole 248 to the ends of the first end 244 and the second end 246 is greater than the outer radius of the ring in which the lower plate 122 is located. The width of the first end 244 and the second end 246 is substantially equal to the width of the lower plate 122 and the upper plate 142 in the circumferential direction of the ring in which the lower plate 122 is located. In the present embodiment, the pointer 24 is magnetic and non-conductive. The first end 244 is north pole (dip pole) and the second end 246 is south pole (s pole). Ο Referring to FIG. 4 together, when the rotation sensing device 1 is assembled, one end of the rotating shaft 22 is first inserted into the first positioning hole 124 and fixed. Then, the pointer 24 is rotatably sleeved on the rotating shaft 22 through the shaft hole 248. Finally, the other end of the rotating shaft 22 is inserted into the second positioning hole 144 and fixed, and each lower plate 122 is aligned with an upper plate 142. "Each lower plate 122' corresponds to the lower plate 122. The plate 142 and the gap between the lower plate 122 and the upper plate 142 constitute a plate capacitor. Therefore, a plurality of plate capacitors are formed on the rotation sensing device 1A. Each of the panel capacitors has an initial capacitance value, and the initial capacitance values of the panel capacitors are equal. The first end 244 and the second end 246 are located between the lower plate 122 and the upper plate 142 and are movable between different lower plates 122 and upper plates 142. [0015] The rotation sensing device 100 further includes a detection circuit 30. The detecting circuit 30 is electrically connected to the plurality of lower plates 122 and the plurality of upper plates 142 at the same time. The guess circuit 30 stores an initial capacitance value and a threshold value. The reading circuit 3 is used to detect the current value of the 127127331 form number Α0101, page 7 / 20 pages 0982046851-0 201106238 between each lower plate 122 and the corresponding upper plate 142, and the measured value The plurality of current capacitance values are compared with the initial capacitance values to calculate the positions of the first end 244 and the second end 246, and the rotation direction of the capacitor module 10 is calculated according to the positional changes of the first end 244 and the second end 246. [0016] When the portable electronic device 200 is used, the portable electronic device 200 can be placed on a platform (not shown), and the outer surface of the lower substrate 12 is in contact with the platform. Rotating the body 202, the capacitor module 10 rotates accordingly, and the pointer 24 maintains its original position under the action of the earth's magnetic field, so the capacitor module 10 rotates relative to the pointer 24. When the first end 244 and the second end 246 of the pointer 24 are respectively located between a lower plate 122 and the corresponding upper plate 142, the medium between the lower plate 122 and the upper plate 142 is changed. Therefore, the capacitance value of the capacitor formed by the lower plate 122 and the upper plate 142 also changes, and the capacitance between the other lower plate 122 and the upper plate 142 is still the initial capacitance value. In the present embodiment, when the first end 244 or the second end 246 is located between a lower plate 122 and the corresponding upper plate 142, the capacitance between the lower plate 122 and the upper plate 142 becomes larger. . The detecting circuit 30 detects the current capacitance value between each lower plate 122 and the corresponding upper plate 142, and compares the detected current capacitance values with the initial capacitance values, if one of the current capacitance values and the initial capacitance value If the difference between the capacitance values is greater than a threshold, one of the first end 244 and the second end 246 is located between the lower plate 122 and the upper plate 142 corresponding to the current capacitance value, thereby determining the first The position of the end 244 and the second end 246. When the pointer 24 rotates, the positions of the first end 244 and the second end 246 relative to the capacitor module 10 gradually change. Accordingly, the capacitance between the lower plate 122 and the upper plate 142 is along the rotation direction. Change in order. The detecting circuit 30 calculates the rotation of the capacitor module 1 according to the change of the relative position of the capacitor module 10 according to the change of the relative position of the first end 244, the second end 098127331, the form number A0101, the eighth page, and the 20th page, the 0982046851-0 201106238 246. direction. The portable electronic device 200 can control the operation of the portable electronic device 200 according to the rotation direction of the capacitor module 1 。. [0017] It will be understood that the pointer 24 may also not include the second end 246, and accordingly, the connecting portion 242 is a south pole (S pole). The lower plate 122 and the upper plate 142 may also have an annular distribution of other shapes such as an ellipse, a square, or the like, as long as the distance from the end of at least one end of the pointer 24 to the central axis of the rotating shaft 22 is greater than that of the lower plate 12 2 and The distance from the upper plate 14 2 to the central axis of the rotating shaft 2 2 is sufficient, that is, at least one end of the 0 pointer 24 is always located between the ring where the lower plate 122 is located and the ring where the upper plate 142 is located. Further, the lower plate 122 and the upper plate 142 may also be arranged in an arc shape. [0018] FIGS. 5 and 6 show a rotation sensing device i〇〇a provided in the second embodiment, which is different from the rotation sensing device 1A provided in the first embodiment in that the center of the upper substrate 14a A through hole 144a is defined, and the rotating shaft 22a is provided with a positioning ring 222a'. One end of the rotating shaft 22a is provided with a thread 224a. The rotating shaft 22a is provided with one end of the thread 224a passing through the through hole 144a and screwed with the bolt 226a. The upper substrate 14a is rotatably disposed between the positioning ring 222a and the bolt 226a. The pointer 24a is fixed to the rotating shaft 22a, and the other end of the rotating shaft 22a is rotatably inserted into the first positioning hole 124a. The two connecting blocks 16a fixedly connect the upper substrate 14a and the lower substrate 12a, so that the upper substrate 14a and the lower substrate 12a are relatively rotatable with the rotating shaft 22a and the pointer 24a. When the rotation sensing device 100a is assembled to a portable electronic device (not shown), the rotating shaft 22a is fixed to the body of the portable electronic device, and the upper substrate 14a and the lower substrate 12a are rotatably connected to the body, and the lower portion The outer surface of the substrate 12a slightly protrudes from the back surface of the body. In use, the upper substrate 14a, 098127331 Form No. A0101 Page 9 of 20 0982046851-0 201106238 The lower substrate 12a rotates relative to the body of the electronic device, the rotating shaft 22a and the pointer 24a. [0019] the rotation sensing device is configured to provide at least one upper plate and corresponding to the capacitor module when the pointer is rotated relative to the capacitor module by providing the capacitor module and a pointer rotatable relative to the capacitor module The capacitance between the lower plates changes, so that the relative rotation between the pointer and the capacitor module can be sensed according to the change in the capacitance. [0027] [0027] In summary, the present invention complies with the requirements of the invention patent, and patents are filed according to law. However, the above description is only a comparative embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to change the equivalent modification of the spirit of the present invention. It should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a portable electronic device provided by a first embodiment. 2 is an exploded perspective view of the portable induction device of FIG. 1 and FIG. 3 is another exploded perspective view of the rotation sensing device of FIG. 4 is a schematic view showing a scraping surface of the rotation sensing device of FIG. 2. Fig. 5 is an exploded view of the rotation sensing device provided by the second embodiment. Figure 6 is a schematic cross-sectional view of the rotation sensing device of Figure 5. [Main component symbol description] Rotary sensing device Lower substrate 1〇〇, 100a !2, 12a
0982046851-0 098127331 表單編號A0101 第1〇頁/共20頁 201106238 第一定位孔 124, 124a 上基板 14, 14a 上極板 142 第二定位孔 144 指針模組 20 轉軸 22, 22a 指針 24, 24a 連接部 242 第一端 244 第二端 246 軸孔 248 偵測電路 30 可攜式電子裝 200 本體 202 置 通孔 144a 速接塊 16a 定位環 222a 螺紋 224a 螺栓 226a 098127331 表單編號A01010982046851-0 098127331 Form No. A0101 Page 1 of 20 201106238 First positioning hole 124, 124a Upper substrate 14, 14a Upper plate 142 Second positioning hole 144 Pointer module 20 Rotary shaft 22, 22a Pointer 24, 24a Connection Portion 242 First end 244 Second end 246 Shaft hole 248 Detection circuit 30 Portable electronic device 200 Body 202 Through hole 144a Speed block 16a Positioning ring 222a Thread 224a Bolt 226a 098127331 Form number A0101
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