1292694 九、發明說明： f發明所屬之技術領域】 本發明是有關於一種平面顯示器，特別是指-種具有 風扇之平面顯示器。 【先前技術】 、在液晶顯示裝置等平面顯示器中，除了顯示面板外， 還包含用以控制顯示面板之電路板，且隨著機型逐漸朝薄 型化發展，許多廠商逐漸將許多電子元件或控制功能整合 =早晶片型式，藉以縮減電路板所佔用之空間，然而，隨 者晶片功率的提高，電路板等發熱元件之發熱功率亦相對 增加，在顯示器内部空間逐漸縮小的情況下，逐漸衍生出 1”散熱問題，且逐漸無法以自然熱對流方式解決内部散 熱問題，所以廠商乃希望藉由在背蓋上組裝風扇，以產生 強制對流。 生 如圖1、2所示，一般之孚 口口 ^ ^ θ ^ - 頌不态1大致包括一用以 夂液日日顯不面板12組裝之框 . 1 、一間隔跨設於面板12 後側並用以供電路板14組裝之支 ^ u後方之背蓋15。如果要加穿π戶牙板13，及—盖設於框殼 風扇16於前述平面顯示器1 大致會將風扇16嵌裝於以15後側壁中 扇16強制產生氣流，以便 精由。亥風 乱⑽以便將顯示器内部熱空氣排出Μ曰目 刖之支撐板13與背蓋15間距 出仁目 ^ ^ Ί ^ ^ 非节小，使付该風扇16之進 風口 161很罪近支撐板J 3後 161 曼側面，所以風爲16之進風口 161刖的工間會很狹小，除了 ,tr ^ ^ ^ 勿k成流％紊亂而產生噪音外 亦谷易造成流阻，而降低風扇 π 16之軋流輸出量， 1292694 低其散熱效率。 【發明内容】 因此，本發明之目的，即在接 之平面顯示器。 纟R種可降低風扇噪音 J發明之另一目的，在於提供-種可提高風扇散熱效 率之平面顯示器。 於是，本發明具有風扇之平面顯示器，包含一框嗖、 一«外露於框殼前側面並可用以顯示影像的顯示面二、 = '组展於框殼上且間隔位於顯示面板後方之板本體 々支撐板、一與該顯示面板電連接地組裝固定於板本體上 板、：覆蓋顯示面板、支標板與電路板地蓋設於框 右HA & 上之風扇。該板本體具 有一貝穿其則、後側面之導流穿孔，該電路板是對鹿位於 導流穿孔旁側，而該背蓋與框殼相配合界定出一可= 流過電路板與導流穿孔之散熱空間。該風.扇是位於導流； 孔後=並可將流經電路板之氣流排出散熱空間外。 藉6亥導流穿孔與顯示面板之間存在的_ 成-局部正對風扇進風口的流場空間 間以形 效率。 而楗鬲風扇的排熱 【實施方式】 有月之前述及其他技術内容、特點與功效，在 以：配，參考圖式之—個較佳實施例的1292694 IX. INSTRUCTIONS: FIELD OF THE INVENTION The present invention relates to a flat panel display, and more particularly to a flat panel display having a fan. [Prior Art] In a flat panel display such as a liquid crystal display device, in addition to the display panel, a circuit board for controlling the display panel is included, and as the model gradually becomes thinner, many manufacturers gradually adopt many electronic components or controls. Functional integration = early chip type, in order to reduce the space occupied by the circuit board, however, with the increase of the chip power, the heating power of the heating elements such as the circuit board is relatively increased, and gradually expands when the internal space of the display is gradually reduced. 1" heat dissipation problem, and gradually unable to solve the internal heat dissipation problem by natural heat convection, so the manufacturer hopes to generate forced convection by assembling the fan on the back cover. As shown in Figure 1, 2, the general mouth ^ ^ θ ^ - 颂 颂 1 generally includes a frame for sputum day display panel 12 assembly. 1. A spacer spans the rear side of panel 12 and is used for assembly of circuit board 14 The back cover 15. If the π-shaped tooth plate 13 is to be added, and the cover fan 16 is placed on the flat-panel display 1, the fan 16 is roughly embedded in the rear side wall of the fan 16 Forcibly generate airflow for the purpose of precision. (10) in order to discharge the hot air inside the display, the support plate 13 and the back cover 15 are spaced apart from each other. ^ ^ Ί ^ ^ is not small, so that the fan 16 is paid The air inlet 161 is very sinful near the support plate J 3 after the 161 side of the man, so the wind is 16 to the air inlet 161 刖 will be very small, in addition to, tr ^ ^ ^ do not flow into the flow disorder The flow resistance is reduced, and the rolling flow output of the fan π 16 is reduced, and the cooling efficiency is low. 1292694. Therefore, the object of the present invention is to connect the flat display. 纟R kind can reduce fan noise. A purpose is to provide a flat panel display capable of improving heat dissipation efficiency of a fan. Thus, the present invention has a flat panel display of a fan, comprising a frame, a display surface exposed to the front side of the casing and capable of displaying an image. a panel body 々 support plate that is assembled on the frame shell and spaced behind the display panel, and is assembled and fixed on the board body upper board in electrical connection with the display panel: covering the display panel, the label board and the circuit board cover to a fan on the right HA & the main body of the plate has a guide hole perforated on the rear side, the circuit board is located on the side of the guide perforation of the deer, and the back cover cooperates with the frame to define a Can pass through the heat dissipation space of the circuit board and the flow guiding perforation. The wind fan is located in the diversion; after the hole = and the airflow flowing through the circuit board can be discharged outside the heat dissipation space. The existing _ into-local is positively proportional to the flow space between the fan air inlets. The exhaust heat of the fan is [the implementation method]. The above-mentioned and other technical contents, features and effects of the month are: Referring to the drawings, a preferred embodiment
清楚的呈現。 π γ肘J 如圖3、4所示，本發明具有風扇之平面顯示器的較佳 1292694 實施例包含：一直立框殼3、一嵌裝外露於框殼3前側面並 可用以顯示影像之顯示面板4、一跨設於框殼3後側面之頂 底侧且間隔位於顯示面板4後方之支撐板5、一組裝固定於 支禮板5後側面且與顯示面板4電連接之電路板6、一蓋設 於框殼3後侧面之背蓋7，及一與外接連通地嵌裝於背蓋7 内側面並與電路板6電連接之風扇8。 由於該框殼3與顯示面板4皆為一般構件，且非本發 明創作重點，因此不再詳述。 該支標板5包括一上下延伸且跨接於框殼3後侧面頂 、底側並間隔位於顯示面板4後方之板本體5 1，及一自板 本體5 1上端部後側面往前突伸至顯示面板4後側面的四角 形環狀圍壁52，且該板本體51與該顯示面板4相向侧面相 配合界定出一間隔空間5〇。該板本體51具有一上下延伸且 貫穿其前後側面而與間隔空間5〇連通之矩形導流穿孔51〇 。亥圍i 5 2疋自|亥導流穿孔$ 1 〇孔緣往前延伸入該間隔空 間50中，並抵靠於該顯示面板4後側面，而與顯示面板4 相配合將該間隔空間5〇區隔界定出一開口朝後，且内徑由 前往後逐漸外擴之矩形流場空間501。 ' 該電略板6是透過多數鎖固於板本體51後側面之支撐 柱20而間隔固定於板本體51後側，且位於該流場空間5〇ι 下方。 該背蓋7包括一開口朝前地蓋設於框殼3後側且覆蓋 顯不面板4、支撐板5與電路板6之蓋本體71，及分別自 蓋本體71内侧面往前突伸之—導流凸板^與二直立導流 7 1292694 側板73。該蓋本體71具有一貫穿其内、外侧面，且對應位 於該導流穿孔5 1 0之上半部後方的組裝孔7丨〇，及多數分別 貫穿其内、外側面之氣孔7 11。該導流凸板72是位於組裝 孔710底緣下方，即近電路板6侧，並具有一斜上往前傾 斜延伸且面向導流穿孔510之導流面721，該等導流側板 73是左、右間隔地分別自該導流凸板72左、右側邊往下延 伸。在本實施例中，該等氣孔711主要分佈在蓋本體71左 、右端部’及對應位於該支撐板5底端處後方，但實施時 不以此為限。 该風扇8是嵌裝固定於該組裝孔71〇中，並抵接於導 流凸板72頂緣，該風扇8具有一朝前之進風口 81，及一朝 後之出風P 82 ’且進風ϋ 81 π徑小於導流穿孔5! 〇之孔徑 亦即α亥導流牙孔5 1 0與顯示面板4之間藉該間隔空間 5〇形成該局部正對風扇進風口 81的流場空間501。 口亥平面顯不器組裝完成後，背蓋7之導流凸板72的導 流面721是對應朝向流場空間5〇1，該等導流侧板乃前侧 面亦刀近朝向该導流穿孔5} Q，而底緣則是分別鄰近該 電路板6頂緣’且該蓋本體71、導流凸板72、該等導流側 板73與》框设3相配合界定出—可使氣流往上流經該電路 板6 ’並和该流場空間5〇1與該等氣孔Mi連通之散熱空間 70 〇 田忒風扇8被驅動時，該風扇8會將散熱空間7〇内之 空氣經由該流場空g 5G1而吸人其進氣口 Μ，並由其排氣 口 82排出平面顯示器外，藉此可於該散熱空間70内產生 1292694 負[吸力促使外界空氣經由該等氣孔^ i被吸入該散熱 空間70中，且因電路板6是對應位於風扇8下方，所以被 吸入散熱空間70中之空氣產生的氣流可沿箭頭2〇〇方向往 上流經該電路板6前、後側面，並被該導流凸板Μ之導流 面721導入s亥"IL场空間5〇1巾，接著被風扇8吸出散熱空 ]7〇外□此’可藉由於散熱空間7〇中之氣流強制將電 路板6作功產生之熱量逐漸帶走，而由該風扇8排出散熱 空間70外，進而可有效散熱。 -乡閱附件1 2所不’為本發明平面顯示器與習知平面 顯示器結構實際進行風扇效率與電路板實際溫度的模擬測 喊結果，顯示器内部環境溫度為50t。由測試結果可知， 糟由於該支擇板5上成型該流場空間5〇1的結構設計，可 Ϊ幅增加風扇8進風口 81側之流場空間，使得進風口 81 :的流場更為順暢，而可大幅降低風扇"音。且因流場 順暢，相對風4 8產生之氣流的損耗率較低，進而大幅增 ::扇8之輸出氣流量（提昇96.5%)，相對提昇風扇8之 =效率（提#18.2%)，而可快速散除電路板6上之晶片 功產生之熱量，使晶片可維持在相對較低溫的狀態。 在本實施例中，該等導流側板73與導流凸板Μ之言几 =!門是要將流經電路板6之大部分氣流直接導引至;： 1中，而可快速地經由風扇8排出，但實施時 ’ §亥等導流側板73盥導产Λ柘79廿昨 盘位置可… 並非必要，且設置數量 整 ^電路板6實際設置於支撐板5上之位置而調 、玄支擇板5亦可不設置該圍板52，而僅設置該 1292694 導流穿孔510’藉由位於導 ^ ^ ⑺乃之間隔空間50 的』“，同樣可使風扇8之進風口 81 間，而可降低風扇8之臂音，且可提昇風扇8輸出氣流； 與散熱效率，但實施實不以此為限。 歸納上述，藉由在該支撐板5上形成該導流穿孔51〇 與流場空間501的結構設計，可使之料 有較大之空間，而可使進風口 81側之流場較為順暢，相對 增加風扇8之氣流輸出量，進而可降低風扇8噪音盥提古 風扇8效率。再加上該等導流凸板72與導流側板7;、的： 置，更可使流經電路板6之女立 > 之大邛刀乳流可直接被導引至該 流場空間501並由風扇8排出，進而可快速將電路板6上 之產熱元件產生的熱能帶走並排出平面顯示器外，使風扇8 可產生較佳之散熱效果。因此，確實可達到本發明之目的 惟以上所述者，僅為本發明之一較佳實施例而已，當 不能以此限定本發明實施之範圍，即大凡依本發明申請: 利範圍及發明說明内容所作之簡單的等效變化與修飾D:皆 仍屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是習知平面顯示器之立體圖； 圖2該習知平面顯示器之側視剖面圖； 圖3是本發明具有風扇之平面顯示器的一較佳實施例 的立體分解圖； 圖4是該較佳實施例的側視剖面圖。 10 1292694 附件1是習知平面顯示器與本發明平面顯示器進行風 扇氣流輸出量模擬測試之結果；及 附件2是習知平面顯示器與本發明平面顯示器進行電 路板溫度檢測之結果。 1292694 【主要元件符號說明】 20...... ...支撐柱 7 ....... ...背蓋 200.... ...箭頭 70...... ...散熱空間 3 ....... 71...... ...蓋本體 4....... 710.·.. ...組裝孔 5 ....... ...支撐板 711 .... ...氣孔 50...... ...間隔空間 72••…· ,導流凸板 501 .... ...流場空間 721 .... 導流面 51...... ...板本體 73...... 檔流板 510··.· ...導流穿孔 8 ....... —風扇 52...... ...圍壁 81...... ....進風口 6....... ...電路板 82…… •…排風口 12Clear presentation. As shown in FIG. 3 and FIG. 4, the preferred embodiment of the present invention has a flat panel display with a fan. The 1292694 embodiment includes: a vertical frame shell 3, a mounting surface exposed on the front side of the frame shell 3, and can be used to display an image display. a panel 4 , a support board 5 spanning from the top and bottom sides of the rear side of the frame shell 3 and spaced apart from the rear of the display panel 4 , a circuit board 6 assembled and fixed to the rear side of the board 5 and electrically connected to the display panel 4 , A back cover 7 is disposed on the rear side of the frame casing 3, and a fan 8 is mounted on the inner side surface of the back cover 7 and electrically connected to the circuit board 6 in an external communication manner. Since the frame 3 and the display panel 4 are both general components and are not the focus of the present invention, they will not be described in detail. The support plate 5 includes a plate body 51 that extends up and down and spans the top and bottom sides of the rear side of the frame 3 and is spaced behind the display panel 4, and a front side of the upper end of the upper plate body 51 The square annular surrounding wall 52 is displayed on the rear side of the display panel 4, and the plate body 51 cooperates with the side surface of the display panel 4 to define a space 5〇. The plate body 51 has a rectangular flow guiding hole 51 上下 extending up and down and extending through the front and rear sides thereof to communicate with the space 5 . Haiwei i 5 2疋自|Heil diversion perforation $ 1 The pupil edge extends forward into the space 50 and abuts against the rear side of the display panel 4, and cooperates with the display panel 4 to divide the space 5 The crotch compartment defines an opening that faces rearwardly and has an inner diameter that is gradually expanded outwardly from the rectangular flow field 501. The electric plate 6 is fixed to the rear side of the plate body 51 through a plurality of support columns 20 fixed to the rear side of the plate body 51, and is located below the flow field space 5〇. The back cover 7 includes a cover body 71 which is open on the rear side of the frame shell 3 and covers the display panel 4, the support board 5 and the circuit board 6, and protrudes from the inner side surface of the cover body 71 respectively. The guide vane ^ and the two vertical guides 7 1292694 side plates 73. The cover body 71 has an assembly hole 7丨〇 extending through the inner and outer side surfaces thereof and corresponding to the rear half of the flow guiding hole 51, and a plurality of air holes 711 extending through the inner and outer sides thereof. The guide vane 72 is located below the bottom edge of the assembly hole 710, that is, near the circuit board 6 side, and has a flow guiding surface 721 extending obliquely upward and facing the flow through hole 510. The flow guiding side plate 73 is The left and right sides respectively extend downward from the left and right sides of the flow guiding convex plate 72. In the present embodiment, the air holes 711 are mainly distributed at the left and right end portions of the cover body 71 and at the rear ends of the support plate 5, but are not limited thereto. The fan 8 is embedded and fixed in the assembly hole 71 抵 and abuts against the top edge of the flow guiding convex plate 72. The fan 8 has a forward air inlet 81 and a rearward air outlet P 82 ′. The inlet ϋ 81 π diameter is smaller than the flow guiding perforation 5! The aperture of the 〇, that is, the αH diversion orifice 5 10 and the display panel 4 form the flow field of the fan inlet 81 by the spacing space 5 〇 Space 501. After the assembly of the mouth plane display device is completed, the flow guiding surface 721 of the flow guiding convex plate 72 of the back cover 7 is corresponding to the flow field space 5〇1, and the front side of the guiding side plate is also facing the guiding flow. Perforation 5} Q, and the bottom edge is adjacent to the top edge of the circuit board 6 respectively, and the cover body 71, the flow guiding convex plate 72, the guiding side plates 73 and the frame 3 are cooperatively defined to enable airflow When the fan board 8 is driven up through the circuit board 6' and the heat dissipation space 70 connected to the air holes Mi 与1 and the air holes Mi, the fan 8 passes the air in the heat dissipation space 7 The flow field is g 5G1 and sucks its air inlet port, and is discharged from the flat display by its exhaust port 82, thereby generating 1292694 negative in the heat dissipation space 70. [The suction force causes the outside air to be passed through the holes. The air is sucked into the heat dissipating space 70, and since the circuit board 6 is located below the fan 8, the airflow generated by the air sucked into the heat dissipating space 70 can flow upward through the front and rear sides of the circuit board 6 in the direction of the arrow 2〇〇. And is guided by the flow guiding surface 721 of the guiding convex plate 导入 into the shai"IL field space 5〇1 towel, and then The fan 8 sucks out the heat-dissipating air]7〇外□ This can be taken away by the airflow in the heat-dissipating space 7〇, and the heat generated by the circuit board 6 is gradually taken away, and the fan 8 is discharged from the heat-dissipating space 70, thereby being effective Cooling. - The town's reading attachment 1 2 does not 'the actual display of the fan efficiency and the actual temperature of the board for the flat panel display and the conventional flat display structure of the present invention, and the internal temperature of the display is 50t. It can be seen from the test results that the structural design of the flow field space 5〇1 formed on the support plate 5 can increase the flow field space on the air inlet 81 side of the fan 8, so that the flow field of the air inlet 81: Smooth, and can greatly reduce the fan's sound. And because the flow field is smooth, the loss rate of the airflow generated by the wind 48 is lower, and then greatly increased: the output air flow of the fan 8 (up 96.5%), and the relative efficiency of the fan 8 (18.2%). The heat generated by the wafer work on the board 6 can be quickly dissipated so that the wafer can be maintained at a relatively low temperature. In this embodiment, the flow guiding side plate 73 and the guiding convex plate Μ ! ! ! ! = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = The fan 8 is exhausted, but when it is implemented, the guiding side plate 73 of the shovel and the like is Λ柘 79廿, the position of the disk is ok... It is not necessary, and the number of the circuit boards 6 is actually set on the support plate 5, and is adjusted. The stencil 5 may not be provided with the louver 52, but only the 1292694 directional perforation 510' may be disposed between the air inlets 81 of the fan 8 by means of the spacing space 50 located at the guide (4). The arm sound of the fan 8 can be reduced, and the airflow of the fan 8 can be increased; and the heat dissipation efficiency, but the implementation is not limited thereto. In summary, the flow guiding hole 51 is formed on the support plate 5, and the flow is formed. The structural design of the field space 501 can make the material have a larger space, and the flow field on the side of the air inlet 81 can be made smoother, and the airflow output of the fan 8 can be relatively increased, thereby reducing the noise of the fan 8 and the fan 8 Efficiency, plus the guide vanes 72 and the flow guiding side plates 7; The large trowel flow through the female board of the circuit board 6 can be directly guided to the flow field space 501 and discharged by the fan 8, thereby quickly taking the heat energy generated by the heat generating elements on the circuit board 6 and Except for the discharge of the flat display, the fan 8 can produce a better heat dissipation effect. Therefore, it is possible to achieve the object of the present invention, and the above is only a preferred embodiment of the present invention, and the present invention cannot be limited thereto. The scope of the invention is as follows: the simple equivalent change and the modification D made by the scope of the invention and the description of the invention are still within the scope of the patent of the invention. [Fig. 1 is a conventional plane] Figure 2 is a side elevational view of the conventional flat panel display; Figure 3 is an exploded perspective view of a preferred embodiment of the flat panel display of the present invention; Figure 4 is a side elevational view of the preferred embodiment Fig. 10 1292694 Annex 1 is the result of a fan airflow output simulation test of a conventional flat panel display and the flat panel display of the present invention; and the accessory 2 is a conventional flat panel display and the flat panel display of the present invention. The result of board temperature detection 1292694 [Description of main component symbols] 20...... ...support column 7 .... ... back cover 200.... ... arrow 70. ..... ...heat dissipation space 3 ....... 71...... ...cover body 4....... 710.·.. ...assembly hole 5 . ... ... support plate 711 .... ... air hole 50 ... ... spacing space 72 • • ... ·, flow guiding convex plate 501 .... ... Flow field space 721 .... flow guiding surface 51 ... ... plate body 73 ... baffle 510 · · · · ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. —fan 52.........wall 81.....air inlet 6.......circuit board 82... •...air outlet 12