1353816 100年08月24日修正替換頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種電子裝置及其鉸鏈結構，尤其涉及一種 使電子裝置之蓋體可相對其本體開合之電子裝置及其鉸 鏈結構。 【先前技術】 [0002] 筆記型電腦、個人數位助理（Personal Digital Assistant ， PDA) 、 數碼相機 以及行動電話 等具有 蓋體及 本體之電子裝置，主要藉由鉸鏈結構使蓋體與本體樞接 ，從而於不使用時蓋體閉合於本體上，而於需要使用時 蓋體能夠從主體上展開。另，蓋體於展開時，能夠停止 . 於使用者所需求之任何角度。是以，鉸鏈必須採用較緊 - 之配合方式，才能夠達到實用之要求。 [0003] —種電子裝置，其包括一蓋體、一本體及樞接該蓋體及 本體之鉸鏈結構。該鉸鏈結構用於實現電子裝置之本體 相對蓋體之開合，其包括一固定件及一轉動件。固定件 包括一固定部及一從固定部包卷形成之套筒，且套筒内 壁上形成一朝轴中心凸出之凸起，固定部固定於電子裝 置之本體。轉動件包括一軸桿及一接合部，軸桿上開設 有一長條形之凹槽，該凹槽用於與套筒之凸起配合。軸 桿穿設於固定部之套筒内，且轉動件之軸桿之外徑略大 於固定件之套筒之内徑。接合部與電子裝置之蓋體固定 連接，進而使蓋體之開合可帶動轉動件轉動，進而使套 筒之凸起卡扣入轉動件之凹槽，同時，由於軸桿與套筒 之間存在摩擦，因而可實現開合過程中所需位置之定位 097138143 表單編號A0101 第4頁/共20頁 1003310388-0 1353816 100年08月24日核正替換頁 [0004] [0005] [0006] 097138143 上述電子裝置之鉸鏈結構中，由於係藉由開設於軸桿之 凹槽與形成於套筒之凸起配合以及轴桿與套筒内壁之間 之摩擦而實現開合定位，故，當套筒之凸起抵持於轴桿 之其他部分時，套筒之一部分會翹起來，從而出現軸桿 與套筒之間之配合不夠緊密，進而於所需位置之定位不 夠穩定。 【發明内容】 鑒於上述狀況，有必要提供一種能夠提供穩定扭力且旋 轉定位較為穩定之電子裝置及其鉸鏈結構。 一種電子裝置，其包括蓋體、本體及樞接該蓋體及本體 之鉸鏈結構。鉸鏈結構包括底座、支架、轉軸及固定件 。固定件開設有軸孔，轉轴之外徑大於固定件之轴孔之 直徑，底座固定於電子裝置之本體，支架固定於電子裝 置之蓋體，固定件固定於底座，轉轴一端固定於支架， 另一端穿置於固定件之軸孔内。固定件包括彈性部、設 置於彈性部旁邊之扣合部，轉軸上開設有與彈性部相配 合之凹槽，且彈性部與凹槽相配合之部分與扣合部相分 離，該彈性部為一截面呈C型之半開扣環，其上對應該凹 槽形成有一朝向彈性部中心突出之凸起並於凸起兩侧形 成有二凹陷部，该凸起用於與轉軸之凹槽相配合以使轉 軸定位，該二凹陷部與轉軸配合能夠使轉軸相對固定件 定位於二不同之角度位置處。 一種鉸鏈結構，其包括底座、支架、轉軸及固定件。固 定件開設有轴孔，轉軸之外徑大於固定件之軸孔之直徑 表單編號A0101 第5頁/共20頁 1003310388-0 [0007] 1353816 100年08月24日核正替换頁 。底座固定於電子裝置之本體，支架固定於電子裝置之 蓋體，固定件固定於底座，轉軸一端固定於支架，另一 端穿置於固定件之軸孔内。固定件包括彈性部、設置於 彈性部旁邊之扣合部，轉軸上開設有與彈性部相配合之 凹槽，且彈性部與凹槽相配合之部分與扣合部相分離， 該彈性部為一截面呈C型之半開扣環，其上對應該凹槽形 成有一朝向彈性部中心突出之凸起並於凸起兩側形成有 二凹陷部，该凸起用於與轉軸之凹槽相配合以使轉軸定 位，該二凹陷部與轉轴配合能夠使轉軸相對固定件定位 於二不同之角度位置處。 [0008] 上述電子裝置中設置有鉸鏈結構，該鉸鏈結構於轉軸上 開設有凹槽，藉由轉軸之凹槽與彈性部配合實現電子裝 置之開合定位，並且彈性部之變形不會影響到固定件之 扣合部與轉轴之緊密配合，從而能夠保持較為穩定之扭 力。 【實施方式】 [0009] 下面將結合附圖及實施例對本發明之電子裝置及其鉸鏈 結構作進一步詳細說明。 [0010] 請參閱圖1及圖2，本發明實施例提供一種電子裝置100， 其包括鉸鏈結構10、本體21及可相對本體21開合之蓋體 22，其中鉸鏈結構10用於框接本體21與蓋體22，從而實 現電子裝置100之蓋體22可相對其本體21之開合。 [0011] 鉸鏈結構10包括底座11、支架12、轉轴13及固定件14。 [0012] 底座11包括一安裝部111、一樞接部112及一固定部113 097138143 表單編號A0101 第6頁/共20頁 1003310388-0 1353816 100年 08月 24 日 。其中，框接部11 2為安裝部111折彎形成:一大致呈lb 之鈑金件。安裝部111開設有至少一安裝孔1U1，本實施 例中有五安裝孔1111，從而可藉由螺釘（圖未示）將底座 11安裝至電子裝置100之本體21上。樞接部112上開設有 一圓形之軸孔1121，從而使轉軸13可穿過軸孔Π21並相 對底座11轉動。此外’極接部112之邊緣延伸形成有延伸 方向與軸孔1121延伸方向相同之固定部113。固定部丨13 上開設有一安裝孔1131，從而使固定件14可藉由螺釘（圖 未示）固定於固定部113 ’且安裝孔1131之開孔方向與安 裝部111上之安裝孔1111之開孔方向相互垂直。 [0013] 支架12包括一固定部121及由固定部121兩端相對折彎形 成之—連接部122、123。固定部121為一平板部，其上 開設有五安裝孔1211，連接部122上開設有二安裝孔 1221。連接部123上開設有一異形之轴孔1231。 [0014] 轉軸13包括一接合部131、一抵靠部132及一軸桿部133 。接合部131大致為一柱體，其截面形狀與連接部123上 之軸孔1231之形狀相對應，且其比軸孔1231稍大，從而 可將接合部131鉚接至支架12之軸孔1231内，使轉軸13 不可轉動地固定於支架12，進而實現支架12之轉動可帶 動轉軸13之轉動。可以理解，接合部131亦可焊接至支架 12之連接部123。抵靠部132呈圓盤狀，其直徑大於接合 部131與軸桿部133之直徑，當轉轴13之軸桿部133插入 固定件14後，抵靠部132抵持於支架12之連接部123與底 座11之框接部112之間。轴桿部133為一圓形之柱狀體， 其直徑比固定件14之軸孔145之直徑稍大，且其中部開設 097138143 表單編號A0101 第7頁/共20頁 1003310388-0 1353816 100年08月24日梭正替换頁 有一凹槽1331，凹槽1331由軸桿部133切除一部分形成 ，從而於凹槽1331底部形成一切平面（圖未標）。當然凹 槽1331之形狀並不受限於本實施例提供之形狀。 [0015] 固疋件14包括一固定部141、一彈性部142、截面大致呈 C型之半開扣合部143、144及軸孔145 »其中，扣合部 143、144反向設置於彈性部142兩邊並與彈性部142分離 ，轴孔145貫通彈性部142與扣合部143、144。固定部 141、彈性部142及扣合部143、144之内壁上開設有複數 油孔（圖未標），油孔用於存儲潤滑油，減小轉轴13與固 疋件14之間之摩擦，防止過大摩擦損壞固定件μ與轉軸 13。彈性部142為一可發生彈性形變之截面大致呈c型之 半開扣環，且彈性部142之一部分折彎而形成一向彈性部 142中心突出之凸起1421，凸起1421用於與轉轴13之凹 槽1331相配合’且彈性部142與扣合部143之開口方向相 同。當然彈性部142之開口方向亦可與扣合部144之開口 方向一致’且扣合部143、144之開口方向亦可一致》另 ，亦可於彈性部142上形成一平直部，該平直部與轉軸13 之凹槽1331底部之切平面相配合。當然，彈性部m2亦可 無Λ起1421，只要彈性部142之一部分能抵持住轉軸13 之凹槽1331底部之切平面即可。此外，扣合部143、144 靠近固定部141之底部可與彈性部142為一體，只要扣合 部143、144與彈性部142與轉軸13之凹槽1331配合之部 分相分離即可。 請同時參閱圊3 ’組裝時，底座11之安裝部hi固定至電 子裝置100之本體21，支架12之固定部121及連接部122 097138143 表單編號Α0101 第8頁/共20頁 1003310388-0 [0016] 1J53816 _ 100年08月24日核正替換頁 固疋至電子裝置100之蓋體22，固定件14固定至底座11 之固疋部113，轉軸13之接合部131固定至支架12之轴孔 1231内’轉軸13之軸桿部133再依次插入底座11之軸孔 1121及固定件14之軸孔145，從而使轉軸13不可相對支 架12轉動地固定於支架12，然而可相對底座丨丨及固定件 14轉動之穿設於底座11友固定件14之軸孔1121、145内 °當然’底座11上可以不開設轴孔1121，讓轉軸13直接 插入固定件14之軸孔145内即可。 []同時參閱圖4至圖6 ’當需打開電子裝置1〇〇之蓋體22時， 扳動蓋體22，則支架12會帶動轉軸13轉動，由於轉軸13 與固定件14之彈性部142及扣合部143、144之内壁之間 存在較大之摩擦，因而蓋體22可停留於任意位置，當轉 軸13轉動到一定角度時，固定件14之凸起1421卡扣於轉 軸13之軸桿部133之凹槽1331，從而讓操作者感受到蓋 體22相對本體21已經打開到所需要角度，實現定位功能 爾需改變這種狀態時’需要較大之外力使凸起14 2 J滑 出凹槽1331，從而使凸起1421抵靠於轉轴13之軸桿部 133上，此時，彈性部142之靠近開口之這一部分向上勉 。當需合上電子裝置100之蓋體22時，反向操作即可。 [0018]上述鉸鏈結構10中固定件14之凸起1421係由固定件14之 —部分發生折彎變形形成，便於製造，並且固定件14之 彈性部142兩邊設置之扣合部143、144與彈性部142相分 離，當凸起1421滑出凹槽1331時，雖然彈性部142靠近 開口之這一部分會向上翹，但彈性部142不會影響扣合部 143 ' 144與轉軸13其他部分之配合程度，因而可以保持 097138143 表單蝙號A0101 1003310388-0 第9頁/共20頁 1353816 100年08月24日修正替换頁 較為穩定之扭力。此外，轉軸1 3之凹槽1 3 31係由軸桿部 133切除一部分形成，且凹槽1331底部為一切平面，因而 ，彈性部142之凸起1421滑出凹槽1331底部之切平面時 需要滑動一段較大之距離，因而可以保持該定位角度之 穩定性。 [0019] 可以理解，可於轉軸13之軸桿部133上開設複數凹槽，從 而實現電子裝置100之蓋體22相對本體21於複數角度之定 位，並可於轉軸13之軸桿部133上形成一直徑相對軸桿部 133之其他部分要小之環形部，然後再於環形部上開設凹 槽1331，從而使固定件之整個彈性部142環扣於環形部， 進而進一步防止轉軸13之之軸向移動。此外，固定件14 之扣合部143、144並不受限於本實施例提供之數目，其 還可為一或多個。 [0020] 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，舉凡 熟悉本案技藝之人士，在爰依本發明精神所作之等效修 飾或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 [0021] 圖1係本發明實施例之電子裝置之立體圖。 [0022] 圖2係圖1之電子裝置之鉸鏈結構之立體分解圖。 [0023] 圖3係圖1之電子裝置之鉸鏈結構之組裝立體圖。 [0024] 圖4係圖3之鉸鏈結構沿IV-IV方向之剖面圖。 [0025] 圖5係圖1之電子裝置之鉸鏈結構另一種狀態之立體圖。 097138143 表單編號A0101 第10頁/共20頁 1003310388-0 1353816 100年08月24日接正替换頁 [0026] 圖6係圖5之鉸鏈結構沿VI-VI方向之剖面圖。 [0027] 【主要元件符號說明】 電子裝置：100 [0028] 連接部：122 ' 123 [0029] 鉸鏈結構：10 [0030] 安裝孔：1211、1221 [0031] 本體：21 [0032] 轉軸：13 [0033] 蓋體：22 [0034] 接合部：131 [0035] 底座：11 [0036] 抵靠部：132 [0037] 安裝部：111 [0038] 軸桿部：133 [0039] 樞接部：112 [0040] 凹槽：1331 [0041] 固定部：11 3、121、 [0042] 固定件：14 [0043] 安裝孔：1111、1131 [0044] 彈性部：142 表單編號A0101 097138143 第11頁/共20頁 1003310388-0 1353816 100年08月24日按正替换頁 [0045] [0046] [0047] [0048] 轴孔：1121、1231 扣合部：143、144 支架：12 凸起：1421 145 097138143 表單編號A0101 第12頁/共20頁 1003310388-01353816 Correction and replacement page of August 24, 2014. Description of the Invention: [Technical Field] [0001] The present invention relates to an electronic device and a hinge structure thereof, and more particularly to a cover body of an electronic device that can be opened relative to the body thereof The electronic device and its hinge structure. [Previous Technology] [0002] A notebook computer, a personal digital assistant (PDA), a digital camera, a mobile phone, and the like having a cover body and a body, and the cover body and the body are pivotally connected by a hinge structure. Thus, the cover is closed to the body when not in use, and the cover can be unfolded from the main body when needed. In addition, when the cover is deployed, it can be stopped at any angle desired by the user. Therefore, the hinge must be tightly coupled to achieve practical requirements. An electronic device includes a cover body, a body, and a hinge structure pivotally connecting the cover body and the body. The hinge structure is used for opening and closing the body of the electronic device relative to the cover body, and includes a fixing member and a rotating member. The fixing member comprises a fixing portion and a sleeve formed by winding from the fixing portion, and a protrusion protruding toward the center of the shaft is formed on the inner wall of the sleeve, and the fixing portion is fixed to the body of the electronic device. The rotating member includes a shaft and an engaging portion, and the shaft has an elongated groove for engaging with the protrusion of the sleeve. The shaft is inserted into the sleeve of the fixing portion, and the outer diameter of the shaft of the rotating member is slightly larger than the inner diameter of the sleeve of the fixing member. The joint portion is fixedly connected with the cover of the electronic device, so that the opening and closing of the cover body can drive the rotating member to rotate, thereby causing the protrusion of the sleeve to be snapped into the groove of the rotating member, and at the same time, due to the relationship between the shaft and the sleeve There is friction, so that the position of the desired position during the opening and closing process can be achieved. 097138143 Form No. A0101 Page 4 / Total 20 Page 1003310388-0 1353816 Correction page of August 24, 2014 [0004] [0005] [0006] 097138143 In the hinge structure of the above electronic device, since the opening and closing are achieved by the groove formed in the shaft and the protrusion formed on the sleeve and the friction between the shaft and the inner wall of the sleeve, when the sleeve is When the protrusion abuts against other parts of the shaft, one part of the sleeve will be tilted, so that the cooperation between the shaft and the sleeve is not tight enough, and the positioning at the desired position is not stable enough. SUMMARY OF THE INVENTION In view of the above circumstances, it is necessary to provide an electronic device capable of providing stable torque and stable rotational positioning and a hinge structure thereof. An electronic device includes a cover body, a body, and a hinge structure pivotally connecting the cover body and the body. The hinge structure includes a base, a bracket, a rotating shaft and a fixing member. The fixing member is provided with a shaft hole, the outer diameter of the rotating shaft is larger than the diameter of the shaft hole of the fixing member, the base is fixed to the body of the electronic device, the bracket is fixed to the cover of the electronic device, the fixing member is fixed to the base, and one end of the rotating shaft is fixed to the bracket , the other end is placed in the shaft hole of the fixing member. The fixing member includes an elastic portion and a fastening portion disposed beside the elastic portion. The rotating shaft is provided with a groove that cooperates with the elastic portion, and the portion where the elastic portion cooperates with the groove is separated from the fastening portion, and the elastic portion is a half-opening buckle having a C-shaped cross section, wherein the corresponding groove is formed with a protrusion protruding toward the center of the elastic portion, and two concave portions are formed on both sides of the protrusion, the protrusion being adapted to cooperate with the groove of the rotating shaft Positioning the rotating shaft, the two recessed portions cooperate with the rotating shaft to position the rotating shaft relative to the fixing member at two different angular positions. A hinge structure includes a base, a bracket, a rotating shaft and a fixing member. The fixing member is provided with a shaft hole, and the outer diameter of the rotating shaft is larger than the diameter of the shaft hole of the fixing member. Form No. A0101 Page 5 of 20 1003310388-0 [0007] 1353816 Correction page of August 24, 100. The base is fixed to the body of the electronic device, the bracket is fixed to the cover of the electronic device, the fixing member is fixed to the base, one end of the rotating shaft is fixed to the bracket, and the other end is inserted into the shaft hole of the fixing member. The fixing member includes an elastic portion and a fastening portion disposed beside the elastic portion, and the rotating shaft is provided with a groove matching with the elastic portion, and the portion where the elastic portion matches the groove is separated from the fastening portion, and the elastic portion is a half-opening buckle having a C-shaped cross section, wherein the corresponding groove is formed with a protrusion protruding toward the center of the elastic portion, and two concave portions are formed on both sides of the protrusion, the protrusion being adapted to cooperate with the groove of the rotating shaft Positioning the rotating shaft, the two recessed portions cooperate with the rotating shaft to position the rotating shaft relative to the fixing member at two different angular positions. [0008] The electronic device is provided with a hinge structure, and the hinge structure is provided with a groove on the rotating shaft, and the groove of the rotating shaft cooperates with the elastic portion to realize the opening and closing of the electronic device, and the deformation of the elastic portion does not affect The fastening portion of the fixing member is closely matched with the rotating shaft, so that a relatively stable torque can be maintained. [Embodiment] The electronic device and its hinge structure of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. 1 and FIG. 2, an embodiment of the present invention provides an electronic device 100 including a hinge structure 10, a body 21, and a cover 22 that can be opened and closed with respect to the body 21. The hinge structure 10 is used to frame the body. 21 and the cover 22, so that the cover 22 of the electronic device 100 can be opened and closed with respect to the body 21. [0011] The hinge structure 10 includes a base 11, a bracket 12, a rotating shaft 13, and a fixing member 14. [0012] The base 11 includes a mounting portion 111, a pivoting portion 112, and a fixing portion 113 097138143. Form number A0101 Page 6 of 20 1003310388-0 1353816 100 years of August 24th. The frame portion 11 2 is formed by bending the mounting portion 111: a sheet metal member having a substantially lb shape. The mounting portion 111 is provided with at least one mounting hole 1U1. In this embodiment, there are five mounting holes 1111, so that the base 11 can be mounted to the body 21 of the electronic device 100 by screws (not shown). A circular shaft hole 1121 is opened in the pivoting portion 112, so that the rotating shaft 13 can pass through the shaft hole 21 and rotate relative to the base 11. Further, the edge portion of the pole portion 112 is formed with a fixing portion 113 whose extending direction is the same as the direction in which the shaft hole 1121 extends. A mounting hole 1131 is defined in the fixing portion 13 so that the fixing member 14 can be fixed to the fixing portion 113 ′ by a screw (not shown) and the opening direction of the mounting hole 1131 and the mounting hole 1111 of the mounting portion 111 are opened. The hole directions are perpendicular to each other. [0013] The bracket 12 includes a fixing portion 121 and a connecting portion 122, 123 formed by being bent at opposite ends of the fixing portion 121. The fixing portion 121 is a flat plate portion, and five mounting holes 1211 are defined therein, and two mounting holes 1221 are defined in the connecting portion 122. A connecting shaft hole 1231 is defined in the connecting portion 123. [0014] The rotating shaft 13 includes a joint portion 131, an abutting portion 132, and a shaft portion 133. The joint portion 131 is substantially a cylinder having a cross-sectional shape corresponding to the shape of the shaft hole 1231 on the connecting portion 123, and is slightly larger than the shaft hole 1231, so that the joint portion 131 can be riveted into the shaft hole 1231 of the bracket 12. The rotating shaft 13 is non-rotatably fixed to the bracket 12, so that the rotation of the bracket 12 can drive the rotation of the rotating shaft 13. It can be understood that the joint portion 131 can also be welded to the joint portion 123 of the bracket 12. The abutting portion 132 has a disk shape having a diameter larger than the diameter of the engaging portion 131 and the shaft portion 133. When the shaft portion 133 of the rotating shaft 13 is inserted into the fixing member 14, the abutting portion 132 abuts against the connecting portion of the bracket 12. 123 is interposed between the frame portion 112 of the base 11. The shaft portion 133 is a circular cylindrical body having a diameter slightly larger than the diameter of the shaft hole 145 of the fixing member 14, and the middle portion thereof is opened 097138143. Form No. A0101 Page 7 / Total 20 pages 1003310388-0 1353816 100 years 08 On the 24th of the month, the shuttle replacement page has a recess 1331, and the recess 1331 is formed by cutting off a portion of the shaft portion 133, thereby forming a plane (not shown) at the bottom of the recess 1331. Of course, the shape of the recess 1331 is not limited to the shape provided by the embodiment. [0015] The fixing member 14 includes a fixing portion 141, an elastic portion 142, a half-opening engaging portion 143, 144 having a substantially C-shaped cross section, and a shaft hole 145. The engaging portions 143, 144 are oppositely disposed on the elastic portion. The two sides of the 142 are separated from the elastic portion 142, and the shaft hole 145 penetrates the elastic portion 142 and the engaging portions 143 and 144. The inner wall of the fixing portion 141, the elastic portion 142 and the fastening portions 143, 144 is provided with a plurality of oil holes (not shown) for storing lubricating oil to reduce friction between the rotating shaft 13 and the fixing member 14. To prevent excessive friction from damaging the fixing member μ and the rotating shaft 13. The elastic portion 142 is a half-opening ring having a substantially c-shaped cross section which is elastically deformable, and one of the elastic portions 142 is partially bent to form a protrusion 1421 protruding toward the center of the elastic portion 142. The protrusion 1421 is used for the shaft 13 The groove 1331 is fitted in the same direction and the elastic portion 142 is the same as the opening direction of the engaging portion 143. Of course, the opening direction of the elastic portion 142 may also coincide with the opening direction of the engaging portion 144 and the opening directions of the engaging portions 143 and 144 may also coincide. Further, a flat portion may be formed on the elastic portion 142. The straight portion cooperates with the tangent plane of the bottom of the recess 1331 of the rotating shaft 13. Of course, the elastic portion m2 may not be lifted 1421 as long as one of the elastic portions 142 can abut against the tangent plane of the bottom of the recess 1331 of the rotating shaft 13. Further, the engaging portions 143, 144 may be integral with the elastic portion 142 near the bottom of the fixing portion 141 as long as the engaging portions 143, 144 and the elastic portion 142 are separated from the portion of the recess 1331 of the rotating shaft 13. Please also refer to 圊3 'Assembly, the mounting portion hi of the base 11 is fixed to the body 21 of the electronic device 100, the fixing portion 121 of the bracket 12 and the connecting portion 122 097138143 Form No. 1010101 Page 8 / Total 20 pages 1003310388-0 [0016 1J53816 _ Aug. 24, 100, the replacement of the page is fixed to the cover 22 of the electronic device 100, the fixing member 14 is fixed to the fixing portion 113 of the base 11, and the joint portion 131 of the rotating shaft 13 is fixed to the shaft hole of the bracket 12. In the 1231, the shaft portion 133 of the rotating shaft 13 is inserted into the shaft hole 1121 of the base 11 and the shaft hole 145 of the fixing member 14 in order, so that the rotating shaft 13 is not rotatably fixed to the bracket 12 with respect to the bracket 12, but can be opposite to the base. The fixing member 14 is rotatably disposed in the shaft hole 1121 and 145 of the base member 11 of the base member 11. Of course, the shaft hole 1121 may not be formed on the base portion 11, and the rotating shaft 13 may be directly inserted into the shaft hole 145 of the fixing member 14. [] At the same time, referring to FIG. 4 to FIG. 6 'When the cover 22 of the electronic device 1 is to be opened, the cover 22 is pulled, and the bracket 12 drives the rotating shaft 13 to rotate, due to the elastic portion 142 of the rotating shaft 13 and the fixing member 14. There is a large friction between the inner walls of the engaging portions 143 and 144, so that the cover 22 can stay at any position. When the rotating shaft 13 is rotated to a certain angle, the protrusion 1421 of the fixing member 14 is buckled on the shaft of the rotating shaft 13. The groove 1331 of the rod portion 133, so that the operator feels that the cover body 22 has been opened to the required angle with respect to the body 21, and the positioning function is required to change the state when a large external force is required to make the protrusion 14 2 J slip. The groove 1331 is pulled out so that the projection 1421 abuts against the shaft portion 133 of the rotating shaft 13, and at this time, the portion of the elastic portion 142 which is close to the opening is turned upward. When the cover 22 of the electronic device 100 needs to be closed, the reverse operation is sufficient. [0018] The protrusions 1421 of the fixing member 14 in the hinge structure 10 are formed by bending deformation of the fixing member 14, which is convenient for manufacture, and the engaging portions 143, 144 provided on both sides of the elastic portion 142 of the fixing member 14 are The elastic portion 142 is separated. When the protrusion 1421 slides out of the groove 1331, although the elastic portion 142 is inclined upward toward the portion of the opening, the elastic portion 142 does not affect the cooperation of the engaging portion 143' 144 with other portions of the rotating shaft 13. The degree can thus be maintained 097138143 Form bat number A0101 1003310388-0 Page 9 / Total 20 page 1353816 100 August 24 Correction of the replacement page is more stable torque. In addition, the groove 1 3 31 of the rotating shaft 13 is formed by cutting off a part of the shaft portion 133, and the bottom of the groove 1331 is all planes. Therefore, the protrusion 1421 of the elastic portion 142 needs to slide out of the cutting plane at the bottom of the groove 1331. Sliding a large distance allows the stability of the positioning angle to be maintained. [0019] It can be understood that a plurality of grooves can be formed on the shaft portion 133 of the rotating shaft 13, so that the cover 22 of the electronic device 100 can be positioned at a plurality of angles with respect to the body 21, and can be on the shaft portion 133 of the rotating shaft 13. A ring portion having a diameter smaller than that of the other portion of the shaft portion 133 is formed, and then a groove 1331 is formed in the annular portion, so that the entire elastic portion 142 of the fixing member is buckled to the annular portion, thereby further preventing the rotation shaft 13 from being Axial movement. Further, the engaging portions 143, 144 of the fixing member 14 are not limited to the number provided in the embodiment, and may be one or more. [0020] 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. BRIEF DESCRIPTION OF THE DRAWINGS [0021] FIG. 1 is a perspective view of an electronic device according to an embodiment of the present invention. 2 is an exploded perspective view showing a hinge structure of the electronic device of FIG. 1. 3 is an assembled perspective view of the hinge structure of the electronic device of FIG. 1. 4 is a cross-sectional view of the hinge structure of FIG. 3 taken along the IV-IV direction. 5 is a perspective view showing another state of the hinge structure of the electronic device of FIG. 1. 097138143 Form No. A0101 Page 10 of 20 1003310388-0 1353816 August 24, 2014 Correction Replacement Page [0026] Figure 6 is a cross-sectional view of the hinge structure of Figure 5 taken along line VI-VI. [Description of main component symbols] Electronic device: 100 [0028] Connection portion: 122 '123 [0029] Hinge structure: 10 [0030] Mounting hole: 1211, 1221 [0031] Body: 21 [0032] Shaft: 13 [0033] Cover: 22 [0034] Joint: 131 [0035] Base: 11 [0036] Abutment: 132 [0037] Mounting: 111 [0038] Axle: 133 [0039] Pivot: 112 [0040] Groove: 1331 [0041] Fixing portion: 11 3, 121, [0042] Fixing member: 14 [0043] Mounting hole: 1111, 1131 [0044] Elastic portion: 142 Form No. A0101 097138143 Page 11/ A total of 20 pages 1003310388-0 1353816 100 years of August 24, according to the positive replacement page [0045] [0046] [0048] shaft hole: 1121, 1231 fastening parts: 143, 144 bracket: 12 raised: 1421 145 097138143 Form No. A0101 Page 12 of 20 1003310388-0