200911090 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種印刷電路板堆疊結構，尤其係關於 一種用於攜帶式電子裝置之印刷電路板堆疊結構。f 、 【先前技術】 攜帶式電子裝置内部一般都具有一主印刷電路板，1 主印刷電路板用以設置各電子元件。然該主印刷電路^ 裝電子几件時，常會因為擺放電子元件之面積不足或元件 =放位置上之需求’需要增加一辅助印刷電路板，該辅助 p刷電路板與所述主印刷電路板呈堆4結構設置，即輔助 印刷電路板距所述主印刷電路板一定高度且平行主印刷 7板設置，該輔助印刷電路板用以設置多餘之電子元件或 件.，尤其係;上之電子元 波干擾問題以及元件保 於電磁 …、體方法係在該電子元件之週邊設置—防護罩接地。 路板ί2參閱I1’印刷電路板堆疊結構10包括一主印刷電 :::二有必要進行電磁波干擾防護，該接連=::: 印電:與輔助印刷電路…達成主 護罩結構16包括輔==路板14之訊號傳輸。所述防 方4框162及一防護蓋164，該防護框 200911090 脱圍繞該電子元件122設置，且焊接於主印刷電 VTf蓋164封閉該防護框162且與防護框162輝接 一體。如此，斟蝥i〇Z坪接 避免電磁波等干擾且：二 =::閉’使電子元件122 捕助印刷電路板14與該防護蓋i 交 隙。該種印刷電路板堆疊結構具有一定之間 ^⑹具有1之厚度，使得所述防護罩結構16整= 二 〜大了該印刷電路板堆疊結構10之整體堆晶古 度’不利於製造輕薄之攜帶式電子裝置，-體= 之材料耗費較多。 巧遠罩結構10 【發明内容】 ^於上述内谷’有必要提供—種能降 料之印刷電路板堆疊結構。 X即名材 一種印刷電路板堆疊結構，包括一主印刷電路— 輔助印刷電路板，所述主印刷電路板上設置: 電子兀件，所述防護框設置於主電路板 有 件，該防護框頂部為—開口結構，該防護； 辅助印刷電路板。 肖丨運接所述 才車乂 /¾ 4技術，本發明印刷電路板堆疊結構中防 直接連接輔助印刷電路板，輔助印刷電路板取代了傳_ 刷電路板堆疊結構巾防護框頂部還需設計之㈣蓋。'’ 減：防護蓋，辅助印刷電路板與防護框之間不存有二 亦較少了防輕之厚度，可大大降低印刷電板堆疊結構之 200911090 高度；通過減少防護蓋，亦節省了印刷電路板堆疊結構之 使用材料。 13 【實施方式】 請參閱圖2’本發明較佳實施例之一印刷電路板堆疊結 構20包括一主印刷電路板22、一輔助印刷電路板、— 1^7 濩框26及若干螺釘28。所述主印刷電路板22上設置有若干 第一電子元件222、一連接器224及若干螺柱226。所述第一 電子元件222為需有電磁防護之電子元件。所述連接器DA 一端電性連接所述主印刷電路板22上之電路。所述辅助印 刷電路板24之上表面上設置有第二電子元件241，該第二電 子元件241為主印刷電路板22安置面積不足或因特殊需求 而設置於該輔助印刷電路板24上之電子元件。所述防護框 26.呈方形框結構，該防護框26底部焊接於所述主印刷電路 板22上且將所述第一電子元件222環繞於框内。 請參閲圖3,所述防護框26為一中空之框體結構，為金 屬材質製成，該防護框26包括一環形框體262、一環形延伸 部264及一連接部266。該環形框體262為一兩端開口之封閉 環形框體’該環形延伸部264由框體262—端向框體262内部 垂直延伸一定距離形成，該環形延伸部264上衝壓有若干間 隔設置之凹口 2642，該凹口 2642中央亦衝壓形成有彈片 2644 ’該彈片2644彎曲且具有向上彈起之趨勢。所述連接 部266位於該環形框體262—端之中間位置且連接所述連接 部264二相對側，該連接部266以更好地穩定該防護框26。 200911090 所述％形框體262之另一端焊接至主印刷電路板22上。 請參閱圖4,所述辅助印刷電路板24連接所述防護框％ 以遮蔽該防護框26未連接於主印刷電路板22之一端開口。 該輔助印刷電路板24之内表面上形成有遮蔽區242及電連 2區244，該遮蔽.區242為多層材質形成，其内層為金屬材 貝該遮蔽區242之周圍裸露若干金屬接觸點2422，輔助印 刷電路板24遮蔽防護框26後，該金屬接觸點2422分別對應 $觸所述防護框26之彈片2644。所述電連接區244位於該遮 蔽區242之一側，其連通所述辅助印刷電路板％之電路，用 以與所述主印刷電路板22上之連接器224連接，以達成所述 主印刷電路板22與該辅助印刷電路板24之訊號傳輸。該辅 助印刷電路板24上還形成有與所述螺柱226數量對應之若 干螺孔246,螺釘28穿過所述螺孔246螺接至所述螺柱226， 使，該辅助印刷電路板24遮蔽所述防護框26。 明參閱圖5 ’本發明印刷電路板堆疊結構2〇組裝後，所 述辅助印刷電路板24内表面遮蔽所述防護框26，該輔助印 刷電路板24上之金屬接觸點2422與所述防護框％之彈片 644接觸，所述電連接區244電性連接所述連接器224。該 a P刷電路板22與该辅助電路板24及所述防護框％彼此間 能電性導通，為所述第一電子元件222形成一防護罩，該主 印刷電路板22通過接地端以導出電荷，有效防止韓射至該 防護罩之電磁波之輻射’為第一電子元件奶很好地提供了 防遵作用。另外’該第一電子元件222亦受到保護不易受外 200911090BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board stack structure, and more particularly to a printed circuit board stack structure for a portable electronic device. f, [Prior Art] The portable electronic device generally has a main printed circuit board inside, and a main printed circuit board is used to set each electronic component. However, when the main printed circuit board is equipped with several pieces of electronic components, it is often necessary to add an auxiliary printed circuit board due to insufficient area of the electronic components or the requirement of the component=position position. The auxiliary p-brush circuit board and the main printed circuit The board is arranged in a stack 4 structure, that is, the auxiliary printed circuit board is disposed at a certain height from the main printed circuit board and parallel to the main printing 7 board, and the auxiliary printed circuit board is used for setting redundant electronic components or components. The problem of the electronic element wave interference and the component are kept in the electromagnetic ..., the body method is arranged around the electronic component - the shield is grounded. The circuit board ί2 refers to the I1' printed circuit board stack structure 10 including a main printed circuit::: two necessary electromagnetic wave interference protection, the connection =::: printed electricity: and the auxiliary printed circuit ... to achieve the main shield structure 16 including == Signal transmission of the road board 14. The armor frame 162 and a protective cover 164 are disposed around the electronic component 122, and are soldered to the main printed circuit VTf cover 164 to close the shield frame 162 and are integrated with the shield frame 162. In this way, the 斟蝥i〇Z ping is prevented from interfering with electromagnetic waves and the like: and the second =::closed causes the electronic component 122 to catch the printed circuit board 14 to communicate with the protective cover i. The printed circuit board stack structure has a thickness of 1 (6) having a thickness of 1, so that the shield structure 16 is completely = two large and the overall stacking crystalness of the printed circuit board stack structure 10 is not conducive to manufacturing thin and light. The portable electronic device, the material of the body = is more expensive. The invention is characterized in that it is necessary to provide a printed circuit board stack structure capable of reducing the material in the above-mentioned inner valley. X is a printed circuit board stack structure comprising a main printed circuit - an auxiliary printed circuit board, the main printed circuit board is provided with: an electronic component, the protective frame is disposed on the main circuit board, the protective frame The top is an open structure, the protection; an auxiliary printed circuit board. In the printed circuit board stack structure of the present invention, the direct connection auxiliary printed circuit board is prevented, and the auxiliary printed circuit board replaces the transmission _ brush circuit board stack structure. (4) cover. '' minus: protective cover, there is no need between the auxiliary printed circuit board and the protective frame, and the thickness of the anti-light is less, which can greatly reduce the height of the printed circuit board stack structure 200911090; by reducing the protective cover, it also saves printing The materials used in the board stack structure. [Embodiment] Referring to Figure 2', a printed circuit board stack structure 20 of the preferred embodiment of the present invention includes a main printed circuit board 22, an auxiliary printed circuit board, a frame 26, and a plurality of screws 28. The main printed circuit board 22 is provided with a plurality of first electronic components 222, a connector 224 and a plurality of studs 226. The first electronic component 222 is an electronic component that requires electromagnetic protection. One end of the connector DA is electrically connected to the circuit on the main printed circuit board 22. The second electronic component 241 is disposed on the upper surface of the auxiliary printed circuit board 24, and the second electronic component 241 is disposed on the auxiliary printed circuit board 24 with insufficient area or special requirements for the main printed circuit board 22. element. The shield frame 26. has a square frame structure, and the bottom of the shield frame 26 is soldered to the main printed circuit board 22 and surrounds the first electronic component 222 in the frame. Referring to FIG. 3, the shield frame 26 is a hollow frame structure made of a metal material. The shield frame 26 includes an annular frame 262, an annular extending portion 264, and a connecting portion 266. The annular frame 262 is a closed annular frame that is open at both ends. The annular extension 264 is formed by the frame 262 extending perpendicularly to the inside of the frame 262. The annular extension 264 is stamped with a plurality of intervals. The notch 2642 is also stamped with a spring piece 2644 in the center of the notch 2642. The elastic piece 2644 is curved and has a tendency to bounce upward. The connecting portion 266 is located at an intermediate position of the end of the annular frame 262 and connects the opposite sides of the connecting portion 264 to better stabilize the protective frame 26. 200911090 The other end of the %-shaped frame 262 is soldered to the main printed circuit board 22. Referring to FIG. 4, the auxiliary printed circuit board 24 is connected to the shield frame % to shield the shield frame 26 from being connected to one end opening of the main printed circuit board 22. A shielding area 242 and an electrical connection 2 area 244 are formed on the inner surface of the auxiliary printed circuit board 24. The shielding area 242 is formed of a multi-layer material, and the inner layer is a metal material. The metal contact area is exposed around the shielding area 242. After the auxiliary printed circuit board 24 shields the protective frame 26, the metal contact points 2422 respectively correspond to the elastic pieces 2644 of the protective frame 26. The electrical connection region 244 is located on one side of the shielding region 242, and communicates with the auxiliary printed circuit board % circuit for connecting with the connector 224 on the main printed circuit board 22 to achieve the main printing. The signal transmission between the circuit board 22 and the auxiliary printed circuit board 24. The auxiliary printed circuit board 24 is further formed with a plurality of screw holes 246 corresponding to the number of the studs 226, through which the screws 28 are screwed to the studs 226, so that the auxiliary printed circuit board 24 The protective frame 26 is shielded. Referring to FIG. 5, after the printed circuit board stack structure 2 of the present invention is assembled, the inner surface of the auxiliary printed circuit board 24 shields the shield frame 26, the metal contact point 2422 on the auxiliary printed circuit board 24 and the protective frame. The % of the tabs 644 are in contact, and the electrical connection region 244 is electrically connected to the connector 224. The a P brush circuit board 22 and the auxiliary circuit board 24 and the guard frame % are electrically connected to each other, forming a shield for the first electronic component 222, and the main printed circuit board 22 is grounded through the ground. The charge, which effectively prevents the radiation of electromagnetic waves from the shield to the shield, provides a good anti-compliance for the first electronic component milk. In addition, the first electronic component 222 is also protected from the outside. 200911090
本發明印刷電路板雄A 辅助印刷電則反24，輔助;、、、;構20中防護框26直接連接 電路板堆疊結構中㈣ 電路板24取代了傳統印刷 減少防護蓋，輔助頂部還需設計之防護蓋。通過 間隙且亦減去了㈣蓋之厚=24與防餘26之間不存有 結構2〇之高度;通過減少防:蓋可=降低印刷電板堆疊 叠結構2 0之使用材料。“，亦郎省了印刷電路板堆 金屬I觸 本發明可不採用該輔助印刷電路㈣上之 金屬接觸點2422與所述防護框 上之 計，即輔助印刷電路板24 :片264:接觸之設 框26接觸。 面為金屬表面直接與防護 圖式簡單說明】 :系：統印刷電路板堆疊結構之分解示意圖； 圖Jit明印刷電路板堆叠結構之分解示意圖; 圖3係本毛明防護框之結構示意圖； 圖4係本發明防護蓋一内表面示意圖. 圖5係本發明印刷電路板堆叠結構之整體示意圖。 【主要元件符號說明】 印刷電路板堆疊結構 10、 主印刷電路板 12、 辅助印刷電路板 14、 防護罩結構 16 20 第一電子元件 241 22 環形框體 262 24 環形延伸部 264 連接部 266 200911090 電子元件 122 連接器 124 防護框 162 防護蓋 164 螺釘 28 第一電子元件 222 螺柱 226 凹口 2642 224彈片 2644 26遮蔽區 242 電連接區 244 金屬接觸點 2422 螺孔 246 11The printed circuit board of the present invention A Auxiliary printing power is reversed 24, auxiliary;,,; 20, the protective frame 26 is directly connected to the circuit board stack structure (4) The circuit board 24 replaces the traditional printing to reduce the protective cover, and the auxiliary top needs to be designed. Protective cover. Through the gap and also subtracted (4) the thickness of the cover = 24 and the anti-remaining 26 does not exist in the height of the structure 2; by reducing the anti-cover: can reduce the printed circuit board stack structure 20 material. ", Lang also saved the printed circuit board stack metal I touch the present invention may not use the metal contact point 2422 on the auxiliary printed circuit (4) and the protective frame, that is, the auxiliary printed circuit board 24: piece 264: contact design Box 26 is in contact. The surface is a metal surface directly and the protection pattern is simple.] : Department: The decomposition diagram of the printed circuit board stack structure; Figure Jit shows the exploded structure of the printed circuit board stack structure; Figure 3 is the Maoming protective frame Figure 4 is a schematic view of an inner surface of the protective cover of the present invention. Figure 5 is an overall schematic view of the printed circuit board stack structure of the present invention. [Main component symbol description] Printed circuit board stack structure 10, main printed circuit board 12, auxiliary printing Circuit board 14, shield structure 16 20 First electronic component 241 22 Ring frame 262 24 Annular extension 264 Connection 266 200911090 Electronic component 122 Connector 124 Shield 162 Protective cover 164 Screw 28 First electronic component 222 Stud 226 Notch 2642 224 shrapnel 2644 26 shaded area 242 electrical connection zone 244 metal contact point 2422 screw hole 246 11