200908856 九、發明說明： 【發明所屬之技術領域】 且特別是有關於一種 本發明是有關於一種固定機構， 電腦系統内的電路板導引固定機構。 【先前技術】 習知的電腦系統大都以螺絲或梅指螺絲將—電路板 (例如主機板)鎖固於一機殼内。當鎖固電路板時，需要將電 路板的螺孔一對準機殼内的相對位置後，才能以螺絲鎖 固。體積小的螺絲，一旦掉落地面後，就有遺失的疑慮。 對-般使用者而言’上述鎖时式雖稱不上朗，但還是 具有改善的空間。 【發明内容】 因此本發明的目的就是在提供一種無螺絲的電路板導 引固定機構。 根據本發明之上述目的，提出一種電腦系統中的電路 板導引固定機構。一第一板面具有複數個定位柱。該些定 位柱的位置與一欲固定之電路板的複數定位孔分別對齊。 —第二板面大致垂直於第一板面。一固定件樞接於第二板 面上，固定件轉動於一鎖固位置與一釋放位置之間，藉以 導引固定電路板於第一板面之該些定位柱上。當固定件轉 動至該鎖固位置時，固定件之扣合部接合電路板之邊緣以 限制電路板於平行該第一板面方向的自由度，藉以使電路 200908856 板的該些定位孔卡入於該些定位柱内，而限制電路板於垂 直第一板面方向的自由度。 【實施方式】 如上所述，本發明提供一種電腦系統中的電路板導引 固定機構，利用一樞接於機殼上之固定件，以導引並固定 一電路板於機殼上。以下將藉實施例來說明電路板導引固 f\ 定機構的細節。 請參照第1-3圖，其繪示依照本發明一實施例中導引 和固定一電路板的過程。在本實施例中，一電路板1 〇4欲 固定於電腦系統100之機殼中。機殼之板面1〇2具有複數 個定位柱102a、102b。電路板1〇4具有複數個定位孔104a、 104b ’定位孔i〇4a、i〇4b的位置分別與定位柱I〇2a、I02b 對應。固定件110以轉軸11〇a樞接於板面1〇6(板面1〇6大 致垂直於板面102)上，用來導引電路板1〇4，使其定位孔 ， l〇4a、l〇4b與定位柱i〇2a、102b卡合以固定電路板1〇4。 在第1圖中，在固定件110處於釋放位置時（固定件11〇 - 的把手110c指向RELEASE)，先將電路板104之定位孔 l〇4a、l〇4b與板面1〇2上的定位柱1〇2a、⑺此對齊接著 向下移動電路板1〇4,使定位孔1〇4a、1〇4b與定位柱i〇2a、 i〇2b能相互卡合。為了方便對齊，固定件ιι〇亦可作為一 幫助對齊的元件。舉例，當電路板1〇4的邊緣1〇4c切齊固 定件11〇的導引面110f時（參照圖中虛線），定位孔1〇乜、 104b與疋位柱1 〇2a、1 〇2b的位置亦會對齊。 200908856 請參照第2圖與第4圖（第4圖為第2圖之上視圖），緣 示電路板1〇4(的定魏1G4a、祕）_在定位柱咖、 l〇2b的狀態。此時’每一定位孔之第一開孔套在定位柱上。 例如，㈣形之定位孔撕之第―開孔1Q5a套在定位柱 l〇2a上。每一定位柱都包含底枉、中柱以及頂椎。例如， 定位柱102a包含底柱1〇3a、中柱1〇3b以及頂椎i〇3c。在 本實施例巾，定餘1G2a(或每_定餘）之頂椎㈣穿過 電路板104的定位孔1〇4a(或每一定位孔接著，電路板 1〇4就靠在底柱103a上。為了達到上述的目的，定位孔 l〇4a(或每一定位柱）的第一開孔1〇元的孔徑需大於定位柱 l〇2a(或每一疋位柱）之頂椎1〇3c。而且，定位孔(或每 一定位柱）的第一開孔105a的孔徑需小於定位柱1〇2a(或每 又位柱）之底柱l〇3a的直徑。此外，中柱1〇3b的直徑小 於底柱103a的直徑或頂椎1〇3c之底面的直徑。接著，使 用者可以操作固定件11〇(例如施力於把手u〇c)，使其扣合 部110b接合電路板1〇4的邊緣1〇4c，並沿方向12〇且平行 板面102推動電路板104,使定位柱1〇2a(或每一定位柱） 之頂椎103c卡入定位孔i〇4a(或每一定位柱）的第二開孔 105b。 请參照第3圖與第5圖（第5圖為第3圖之上視圖），繪 不電路板104(的定位孔i〇4a、l〇4b)卡入定位柱i〇2a、l〇2b 的狀態。此時，固定件110處於鎖固的位置（把手11〇c指向 LOCK的位置）。為了達到上述的目的，定位孔1〇4a(或每一 定位孔）的第二開孔l〇5a的孔徑需小於定位柱i〇2a(或每一 200908856 定位柱）之頂椎〗〇3c之底面的直徑。在本實施例中，扣合 4 110b為一 L形折板以接合電路板1〇4之邊緣i〇4c。當固 疋件11 〇處於鎖固位置時，扣合部n 同時限制電路板1 〇4 ‘ 向右和向上的自由度’且電路板104之定位孔l〇4a(或每一 疋位孔）將卡入定位柱l〇2a(或每一定位柱）之頂椎1〇3c與 底柱103a之間’電路板1〇4就被鎖固了。 當使用者欲拆解電路板1〇4時，首先將固定件11()轉 動回釋放位置’接著推動電路板104沿方向120的相反方 向滑動，直到電路板104處於第2圖與第4圖的狀態時， 電路板104就能以垂直板面1〇2的方向向上拉起。 請參照第6圖，其繪示本發明一實施例的一種固定件 的放大圖❶如何限制固定件110於釋放位置與鎖固位置之 間，將於以下敘述。固定件11〇以軸孔u〇g樞接於板面1〇6 上。固定件110具有一弧形的中空滑槽11〇d，用以套接於 限位柱110e(固定於板面1〇6)。當固定件11〇轉動時，中空 J 滑槽110d相對於限位柱11 〇e滑動，但限位柱110e只能於 中空滑槽110d内滑動。中空滑槽110d的兩端分別設有突 ' 出的肋點，當限位柱110e卡入中空滑槽llOd的兩端時， 會受肋點的限制，而固定在中空滑槽11〇d的端點。而當限 位柱110e位於中空滑槽110d的兩端端點時，固定件ιι〇 就分別位於釋放位置與鎖固位置。 由上述本發明實施例可知，應用本發明之電路板導引 固定機構，就可以應用固定件導引並固定一電路板，而無 需以螺絲鎖固方式固定電路板於電腦系統之機殼内。 200908856 、=本發明已以一較佳實施例揭露如上，然其並非用 、限定本《明’任何熟習此技藝者，在不脫離本發明之精 神㈣圍内’當可作各種之更動與㈣，因此本發明之保 護範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 ^為讓本發明之上述和其他目的、特徵、優點與實施例 月b更明顯易懂，所附圖式之詳細說明如下： 第1-3圖係繪示依照本發明一實施例中導引和固定一 電路板的過程； 第4圖係繪示第2圖之上視圖； 第5圖係繪示第3圖之上視圖；以及 第6圖係繪示本發明一實施例的一種固定件的放大圖。 【主要元件符號說明】 10〇 :電腦系統 105a :第一開孔 :板面 l〇5b :第二開孔 102a :定位柱 106 :板面 102b ·定位柱 110 :固定件 103a :底柱 110a :轉軸 103b :中柱 11 Ob :扣合部 103c :頂椎 110d :中空滑槽 104 ·‘電路板 110e :限位柱 104a :定位孔 11 Of ·導引面 200908856 104b :定位孔 110g :軸孔 104c :邊緣 120 :方向200908856 IX. INSTRUCTIONS: [Technical field to which the invention pertains] and particularly related to the invention The invention relates to a fixing mechanism, a circuit board guiding and fixing mechanism in a computer system. [Prior Art] Conventional computer systems mostly use a screw or a thumb screw to lock a circuit board (such as a motherboard) into a casing. When the circuit board is locked, the screw holes of the circuit board must be aligned with the relative positions in the chassis before they can be locked with screws. Small screws, once dropped on the ground, have lost doubts. For the average user, the lock style mentioned above is not a good one, but it still has room for improvement. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a screwless circuit board guide fixing mechanism. According to the above object of the present invention, a circuit board guiding and fixing mechanism in a computer system is proposed. A first plate surface has a plurality of positioning posts. The positions of the positioning posts are aligned with the plurality of positioning holes of the board to be fixed. - the second panel is substantially perpendicular to the first panel. A fixing member is pivotally connected to the second board surface, and the fixing member is rotated between a locking position and a releasing position for guiding the fixing circuit board to the positioning posts of the first board surface. When the fixing member is rotated to the locking position, the fastening portion of the fixing member engages the edge of the circuit board to limit the degree of freedom of the circuit board in the direction parallel to the first board surface, so that the positioning holes of the circuit 200908856 board are engaged In the positioning posts, the degree of freedom of the circuit board in the direction perpendicular to the first board surface is limited. [Embodiment] As described above, the present invention provides a circuit board guiding and fixing mechanism in a computer system, which uses a fixing member pivotally connected to the casing to guide and fix a circuit board to the casing. The following will explain the details of the board guiding mechanism by means of an embodiment. Referring to Figures 1-3, a process of guiding and securing a circuit board in accordance with an embodiment of the present invention is illustrated. In the present embodiment, a circuit board 1 〇 4 is intended to be fixed in the casing of the computer system 100. The plate surface 1〇2 of the casing has a plurality of positioning posts 102a, 102b. The circuit board 1〇4 has a plurality of positioning holes 104a, 104b. The positions of the positioning holes i〇4a and i〇4b correspond to the positioning posts I〇2a and I02b, respectively. The fixing member 110 is pivotally connected to the board surface 1〇6 (the board surface 1〇6 is substantially perpendicular to the board surface 102) by the rotating shaft 11〇a for guiding the circuit board 1〇4 to position the hole, l〇4a, L〇4b is engaged with the positioning posts i〇2a, 102b to fix the circuit board 1〇4. In the first figure, when the fixing member 110 is in the releasing position (the handle 110c of the fixing member 11〇 is directed to the RELEASE), the positioning holes l〇4a, l〇4b of the circuit board 104 and the board surface 1〇2 are first The positioning posts 1〇2a, (7) are aligned and then moved downward to the circuit board 1〇4 so that the positioning holes 1〇4a, 1〇4b and the positioning posts i〇2a, i〇2b can be engaged with each other. To facilitate alignment, the fastener ιι can also serve as a component to aid alignment. For example, when the edge 1〇4c of the circuit board 1〇4 is aligned with the guiding surface 110f of the fixing member 11〇 (refer to the broken line in the drawing), the positioning holes 1〇乜, 104b and the clamping posts 1 〇 2a, 1 〇 2b The location will also be aligned. 200908856 Please refer to Fig. 2 and Fig. 4 (Fig. 4 is a top view of Fig. 2), which shows the state of the board 1〇4 (the fixed Wei 1G4a, secret) _ in the positioning column, l〇2b. At this time, the first opening of each positioning hole is sleeved on the positioning post. For example, the first opening hole 1Q5a of the (four)-shaped positioning hole is placed on the positioning post l〇2a. Each positioning post contains a bottom, a middle column and a top vertebra. For example, the positioning post 102a includes a bottom post 1〇3a, a middle post 1〇3b, and a top vertex i〇3c. In the embodiment of the present invention, the vertebral vertebra (4) of the remaining 1G2a (or per _set) passes through the positioning holes 1〇4a of the circuit board 104 (or each positioning hole, then the circuit board 1〇4 rests on the bottom post 103a) In order to achieve the above purpose, the aperture of the first opening 1 of the positioning hole 10a (or each positioning post) needs to be larger than the top vertex 1〇3c of the positioning post 10〇2a (or each of the clamping posts) Moreover, the diameter of the first opening 105a of the positioning hole (or each positioning post) needs to be smaller than the diameter of the bottom column 10a3a of the positioning post 1〇2a (or each re-column). In addition, the middle column 1〇3b The diameter is smaller than the diameter of the bottom post 103a or the bottom surface of the top vertebra 1〇3c. Then, the user can operate the fixing member 11〇 (for example, apply the handle u〇c) so that the engaging portion 110b engages the circuit board 1 The edge of the crucible 4 is 1〇4c, and in the direction 12〇 and the parallel plate surface 102 pushes the circuit board 104, so that the top vertex 103c of the positioning post 1〇2a (or each positioning post) is snapped into the positioning hole i〇4a (or each The second opening 105b of a positioning post). Referring to Figures 3 and 5 (Fig. 5 is a top view of Fig. 3), the drawing board 104 (positioning holes i〇4a, l4b) Snap into the positioning column i The state of 〇2a, l〇2b. At this time, the fixing member 110 is in the locked position (the handle 11〇c points to the position of the LOCK). To achieve the above purpose, the positioning hole 1〇4a (or each positioning hole) The diameter of the second opening l〇5a needs to be smaller than the diameter of the bottom surface of the top end of the positioning post i〇2a (or each of the 200908856 positioning posts). In this embodiment, the snapping 4 110b is an L-shaped fold. The board is to engage the edge i〇4c of the circuit board 1〇4. When the fixing member 11 is in the locking position, the fastening portion n simultaneously limits the degree of freedom of the circuit board 1 〇4' to the right and upwards and the circuit board 104 The positioning holes l〇4a (or each of the clamping holes) will be caught between the top vertex 1〇3c of the positioning post 10〇2a (or each positioning post) and the bottom post 103a. The circuit board 1〇4 is locked. When the user wants to disassemble the circuit board 1〇4, first rotate the fixing member 11() back to the release position' and then push the circuit board 104 to slide in the opposite direction of the direction 120 until the circuit board 104 is in the second picture and the second In the state of FIG. 4, the circuit board 104 can be pulled up in the direction of the vertical plate surface 1〇2. Referring to FIG. 6, an embodiment of the present invention is illustrated. An enlarged view of a fixing member 限制 how to restrict the fixing member 110 between the releasing position and the locking position, which will be described below. The fixing member 11 is pivotally connected to the plate surface 1〇6 by the shaft hole u〇g. The 110 has a curved hollow chute 11〇d for being sleeved on the limiting post 110e (fixed to the plate surface 1〇6). When the fixing member 11 turns, the hollow J chute 110d is opposite to the limiting post. 11 〇e slides, but the limit post 110e can only slide in the hollow chute 110d. The two ends of the hollow chute 110d are respectively provided with protruding rib points, when the limit post 110e is stuck into the hollow chute 110d At the end, it is limited by the rib point and is fixed at the end of the hollow chute 11〇d. When the limiting post 110e is located at the end points of the two ends of the hollow chute 110d, the fixing members ιι are located at the releasing position and the locking position, respectively. It can be seen from the above embodiments of the present invention that by applying the circuit board guiding and fixing mechanism of the present invention, the fixing member can be used to guide and fix a circuit board without fixing the circuit board in the casing of the computer system by screw locking. 200908856, the present invention has been disclosed in a preferred embodiment as above, and it is not intended to limit the scope of the present invention to those skilled in the art, and may make various changes and (4) without departing from the spirit of the present invention. Therefore, the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious and obvious, the detailed description of the drawings is as follows: Figures 1-3 are drawn in accordance with the present invention. a process of guiding and fixing a circuit board in an embodiment; FIG. 4 is a top view of FIG. 2; FIG. 5 is a top view of FIG. 3; and FIG. 6 is a view of the present invention. An enlarged view of a fixture of an embodiment. [Main component symbol description] 10〇: computer system 105a: first opening: plate surface l〇5b: second opening 102a: positioning post 106: plate surface 102b • positioning post 110: fixing member 103a: bottom post 110a: Rotary shaft 103b: center pillar 11 Ob: fastening portion 103c: top vertex 110d: hollow chute 104 · 'circuit board 110e: limit post 104a: positioning hole 11 Of · guide surface 200908856 104b: positioning hole 110g: shaft hole 104c : Edge 120: Direction