M355304 五、新型說明： 【新型所屬之技術領域】 本創作係有關於-種氣流止回結構，尤指—種氣流止 回結構及具有該機構的離心式風扇。 【先前技術】 電子襄置因其所發出的大量廢熱，所以通常都必須於 電子裝置内部设置有用以散熱的散熱風扇，否則電子裝置 内部的電子零件有可能因過熱而燒毀。 習知之散熱裝置通常係包括一導熱塊、一散熱體以及 政熱風扇，導熱塊係貼接電子裝置内部的發熱元件上， 而導熱塊係與散熱體連接，而散熱風扇通常係設置於散熱 體之一侧，對散熱體吹送氣流以將廢熱排出電子裝置以降 低電子裝置内部的環境溫度；而電子裝置内通常會配置一 個以上的散熱風扇以加強散熱效能。 然而，此種散熱裝置在實際使用上仍具有一問題點存 在：當配置有單散熱風扇的電子裝置因為散熱風扇損壞而 停止運轉的時候，灰塵以及辦污有可能會經由電子裝置的 出風口而進人電子裝置内部，㈣電子裝置内部的電子零 件以及散熱風扇造成損壞；另外，若是配置有雙散熱風扇 的電子裝置其中之-散熱風扇因損壞而停止運轉時，由於 空氣對流的關係，會使電子裝置外部的氣流受到另一還在 運轉的散熱風扇的影響而從出風口逆流回電子裝置内部， 大幅降低散熱效能；且從外部逆流的氣體同樣亦伴隨著灰 M355304 塵以及髒污，亦會對電早# ¥ 扇造成損壞。子裝置内部的電子零件以及散熱風 是以，如何改善 究的課題。 前述之問題點’即成為本創作人所研 【新型内容】 今機之々目的，在於提供一種氣流止回結構及具有 扇裝置，藉由該等擒片以防止氣流逆 二散…風扇内部而降低散熱效果，能確保風 氣流=:上::目:加本創作係提供-種用於風扇之 包含複數圍板，二=複數擋片’其中，該框架 圍板係圍5又形成有一通口，並灰兮蓉 作穿孔J該擔片兩侧分別設有對應該等穿孔 鄰片之、'’該等擔片係配置於該通^，且任二相 鄰之該插片之百、末端係相互疊接。 回之目的’本創作係提供-種具有氣流止 扇農置，包括一離心式風扇及-氣流止 口、、口構’該離心式屈戶曰士 ™ Λ 几羽具有一罩體以及設置於該罩體内部 體形成有—開口’該氣流止回結構對應於 數:nr亥罩體，該氣流止回結構包含一框架以及複 :一、’、、’该框架包含複數圍板，該等圍板係圍設形 八別座並在4等圍板開設有複數穿孔’該擔片兩側 刀0又、心該等穿孔作嵌合的n該等# >ί M355304 於該通Π内，且任二相鄰之職片之首、末端係相互属 :閉：該離心式風扇開始及停止運轉時’該等播片係二啟 本創作相較於先前技術所達成的功效在於，解決習知 散熱裝置内散熱風扇因損壞而停止運轉時造成外錢體回 流的缺點’確保散熱效能、避免電子裝置内部以及： 扇沾染灰塵紐污、以及延長散熱風扇及電子裝置内部'零 件的使用壽命’·另夕卜藉由自圍板延伸的折板與風扇罩體 的抵接，使氣流止回結構更穩固地固定於罩體上，·再者， 成型於片體上的折緣使片體受氣流吹動的時候能穩 而不晃動，且減低所產生的噪音。 【實施方式】 有關本創作之詳細說明及技術内容，配合圖式說明如 下，然而所附圖式僅提供參考與說明用，並非用來對本創 作加以限制者。 «月參閱第至二圖，係分別為本創作之立體分解圖、 立體外觀圖以及第二圖沿剖面線3_3之剖視圖，本創作係 提供一種用於風扇之氣流止回結構，包括一框架1〇以及複 數擋片20，其中，· 框架10包含複數圍板U，該等圍板丨丨係圍設呈一矩形 並形成有一通口 b ’並在該等圍板^開設有複數穿孔 111 ，圍板11之一側邊延伸有一折板12，折板12係與圍板 11相互垂直。 M355304 該擋片20兩側分別設有對應該等穿孔Η〗作嵌合的一 凸體21，此等擒片2〇係配置於通口 b内，且任二相鄰之擔 片20之首、末端係相互疊接，擋片20之首端係位於凸體21 側，擋片20之末端則位於遠離凸體21之一側，擋片2〇可以 凸體21為軸心進行轉動，但在一般的情況下，擋片20因為 重力之關係而呈鉛直向下的狀態，當有氣流吹送過通口 b 時’擋片20才會開啟。 籲 進一步說明，凸體21係延伸自擋片20之兩侧；另外， 播片20鄰近於該凸體21處，即擔片2〇之首端成型有一折緣 二而折緣22之作用在於當擋片2〇受氣流吹動時，可達到 穩定的作用，使擋片20不晃動而產生噪音；若是沒有折緣 22的構造’當氣流吹動時，擔片2()將會極度不穩定而晃動 並產生嗓音。 請參閱第四圖，係為另一實施例之截面圖，本實施例 中’擋片20遠離於該凸體21處，即播片别之末端成型有— 籲折緣23，折緣23係自擔片2〇延伸並彎折有一角度，其作用 同樣是為了使擋片20受氣流吹動時能穩定以及減小噪音而 δ又罝。 請參閱第五及六圖，係分別為本創作裝設於離心式風 f之示意圖以及本創作裝設於離心式風扇之應用示意圖， 、、實施例中’氣流止回結構丨係用於—離心式風扇，離 式風扇40具有—罩體41以及設置於軍體41内部的一葉輪 2 ’罩體41形成有一開口 411，氣流止回結構【對應於開 口 411套接於罩體41，而折板匕係可與罩體41抵接以固定 M355304 氣流止回結構l ;而第五圖係為裝設有氣流止回結構i的 風扇40用於電子裝置50内部的示意圖，電子裝置設有對 應風扇40的複數出風口 51。 凊參閱第七及八圖，係分別為第五圖沿剖面線6_6之 剖視作動狀態圖以及第五圖沿剖面線7_7之剖視作動狀態 圖，當風扇40吹送氣流的時候，擔片2〇將會受氣流推動而 開啟；而當風扇40停止運轉時，擔片2〇將會因重力的關係 _而關閉’使外部0 流無法回流至風扇4〇内。 請參閱第九圖，係本創作又一實施例之局部立體分解 圖，本實施例中，凸體21係呈一矩形，原因是因為擔片2〇 係以沖壓製程而製出’如此可節省加工成本，而穿孔m 係大於凸體21之周緣尺寸，以使擋片2〇仍可藉由凸體^穿 設於穿孔111内來進行開啟以及閉合的動作；另外，折緣 22係呈-圓弧狀’但同樣不以此型態為限，而成此種型離 的折緣22可使擋片20穩定開啟而不產生晃動。 “ T上所述田知本創作之氣流止回結構及具有該機構 .的離^式風扇已具有產業利用性、新穎性與進步性，又本 ‘ ^之構造亦未曾見於同類產品及公開使用，完全符合新 1專利申請要件，爰依專利法提出申請。 【圖式簡單說明】 第圖係本創作之立體分解圖。 第一圖係本創作之立體外觀圖。 第三圖係第二圖沿剖面線3-3之剖視圖。 M355304 第四圖 第五圖 第六圖 第七圖 第八圖 第九圖 係另一實施例之戴面圖。 係本創作裳設於離心式夙屬之示意圖。 係本創作裝設於離心式風扇之應用示意圖。 係第五圖沿剖面線6-6之剖視作動狀態圖。 係第五圖沿剖面線7-7之剖視作動狀態圖。 係本創作又一實施例之局部立體分解圖。M355304 V. New description: [New technical field] The author has a kind of airflow check structure, especially a kind of airflow check structure and a centrifugal fan with the mechanism. [Prior Art] Due to the large amount of waste heat emitted by the electronic device, it is usually necessary to provide a cooling fan for dissipating heat inside the electronic device. Otherwise, the electronic components inside the electronic device may be burnt due to overheating. The conventional heat dissipating device generally includes a heat conducting block, a heat dissipating body and a heating fan. The heat conducting block is attached to the heating element inside the electronic device, and the heat conducting block is connected to the heat sink, and the heat dissipating fan is usually disposed on the heat dissipating body. On one side, the airflow is blown to the heat sink to discharge the waste heat to the electronic device to reduce the ambient temperature inside the electronic device; and more than one heat dissipation fan is usually disposed in the electronic device to enhance the heat dissipation performance. However, such a heat dissipating device still has a problem in practical use: when an electronic device configured with a single cooling fan stops operating due to damage of the cooling fan, dust and dirt may pass through the air outlet of the electronic device. Inside the electronic device, (4) the electronic components inside the electronic device and the cooling fan cause damage; in addition, if the electronic device equipped with the dual cooling fan stops the operation due to damage, the air convection relationship may cause The airflow outside the electronic device is reversed from the air outlet to the inside of the electronic device due to the influence of another cooling fan that is still in operation, which greatly reduces the heat dissipation performance; and the gas that flows from the outside is also accompanied by the dust and dirt of the ash M355304. Damage to the electric early #¥ fan. The electronic components inside the sub-device and the heat dissipation are how to improve the problem. The above-mentioned problem point has become the creator's research [new content]. The purpose of this machine is to provide an airflow check structure and a fan device, which can prevent the airflow from being reversed...the inside of the fan. Reduce the heat dissipation effect, can ensure the wind air flow =: upper:: mesh: plus the creation of the system provides - the fan is included in the plurality of panels, the second = the plurality of flaps, wherein the frame fence 5 forms a pass The mouth and the gray cicada are used as the perforations. The two sides of the support sheet are respectively provided with the corresponding perforated adjacent pieces, and the strings are arranged in the pass, and the adjacent ones of the inserts are The end portions are overlapped with each other. The purpose of the return 'This creation is provided with a kind of airflow stop fan farm, including a centrifugal fan and - air flow stop, and the mouth structure 'The centrifugal Quartz TM Λ a few feathers have a cover and are set in The inner body of the cover is formed with an opening. The air flow check structure corresponds to a number: nr, the air flow check structure includes a frame and a first: ',, ' the frame includes a plurality of surrounding plates, and the like The slats are surrounded by eight shaped seats and are provided with a plurality of perforations on the four slabs. The knives on both sides of the slab are in the same shape, and the perforations are fitted to each other. And the first and the end of the two adjacent jobs are mutually related: Close: When the centrifugal fan starts and stops running, the effect of the two-part creation of the broadcast film is better than that of the prior art. The shortcomings of the external money body returning when the cooling fan in the heat sink is stopped due to damage 'ensure heat dissipation, avoid the inside of the electronic device and: the fan is contaminated with dust, and prolong the service life of the cooling fan and the internal parts of the electronic device '·Others by self-circumference The abutment of the extended flap and the fan cover makes the airflow check structure more firmly fixed to the cover body. Further, the flange formed on the sheet body stabilizes the sheet body when it is blown by the airflow. Does not shake, and reduces the noise generated. [Details] The detailed description and technical contents of the present invention are as described below with reference to the drawings, but the drawings are only for reference and explanation, and are not intended to limit the creation. «Monthly refer to the first to second figures, which are respectively a three-dimensional exploded view of the creation, a three-dimensional external view and a cross-sectional view of the second figure along the section line 3_3. The present invention provides an airflow check structure for a fan, including a frame 1 And a plurality of flaps 20, wherein the frame 10 comprises a plurality of panels U, the enclosures are surrounded by a rectangle and formed with a port b' and a plurality of perforations 111 are formed in the panels One side of one of the panels 11 extends with a flap 12 which is perpendicular to the panel 11. M355304 is provided with a protrusion 21 corresponding to the perforation of the two sides of the blocking piece 20, and the cymbal 2 is disposed in the opening b, and is the first of any two adjacent supporting pieces 20. The end portions are overlapped with each other, the first end of the blocking piece 20 is located on the side of the convex body 21, and the end of the blocking piece 20 is located away from one side of the convex body 21, and the blocking piece 2〇 can be rotated by the convex body 21 as an axis, but In the general case, the flap 20 is vertically downward due to gravity, and the flap 20 is opened when air is blown through the port b. Further, the convex body 21 extends from both sides of the blocking piece 20; in addition, the broadcasting piece 20 is adjacent to the convex body 21, that is, the leading end of the supporting piece 2 is formed with a flange 2 and the flange 22 functions. When the flap 2 is blown by the airflow, a stable effect can be achieved, so that the flap 20 does not sway and generate noise; if there is no structure of the flange 22, when the airflow is blown, the stretcher 2() will be extremely Stable and shaking and producing a voice. Please refer to the fourth figure, which is a cross-sectional view of another embodiment. In this embodiment, the baffle 20 is away from the convex body 21, that is, the end of the broadcast piece is formed with a folding edge 23 and a flange 23 The self-supporting sheet 2 is extended and bent at an angle, and its function is also to stabilize and reduce noise when the flap 20 is blown by the airflow. Please refer to the fifth and sixth figures, which are schematic diagrams of the installation of the centrifugal wind f and the application schematic of the original installation in the centrifugal fan. In the embodiment, the airflow check structure is used for - The centrifugal fan, the off-type fan 40 has a cover 41 and an impeller 2 disposed inside the military body 41. The cover 41 is formed with an opening 411, and the airflow check structure [corresponds to the opening 411 to be sleeved on the cover 41, and The flaps can be abutted against the cover 41 to fix the M355304 airflow check structure l; and the fifth figure is a schematic diagram of the fan 40 equipped with the airflow check structure i for the inside of the electronic device 50, and the electronic device is provided Corresponding to the plurality of air outlets 51 of the fan 40. Referring to the seventh and eighth figures, respectively, the sectional view of the fifth figure along the section line 6_6 and the sectional view of the fifth figure along the section line 7_7, when the fan 40 blows the airflow, the support 2 〇 will be pushed by the airflow to turn on; and when the fan 40 stops running, the slab 2 〇 will be closed due to gravity _ so that the external 0 flow cannot be returned to the fan 4 。. Please refer to the ninth figure, which is a partial exploded view of another embodiment of the present invention. In this embodiment, the convex body 21 is formed in a rectangular shape because the support 2 is made by a stamping process. The processing cost, and the perforation m is larger than the circumference of the convex body 21, so that the flap 2 can still be opened and closed by the convex body being inserted into the through hole 111; in addition, the flange 22 is - The arc shape 'but the same is not limited to this type, and the flange 22 of this type can make the flap 20 stably open without shaking. "The airflow check structure of Tian Zhiben's creation on T and the off-type fan with this mechanism have industrial applicability, novelty and progress, and the structure of this '^ has never been seen in similar products and public use. Fully conform to the requirements of the new 1 patent application, and apply according to the patent law. [Simple description of the diagram] The first diagram is a three-dimensional exploded view of the creation. The first picture is the three-dimensional appearance of the creation. The third picture is the second picture A cross-sectional view along section line 3-3. M355304 fourth figure fifth figure sixth figure seventh figure eighth figure ninth figure is a wear side view of another embodiment. The schematic diagram of the application of the centrifugal fan is shown in Figure 5. The fifth diagram is a sectional view of the section along line 6-6. Figure 5 is a sectional view of the section along line 7-7. A partial exploded view of another embodiment is created.
【主要元件符號說明】 1 氣流止回結構 10 框架 11 圍板 111 穿孔 12 折板 20 擋片 21 凸體 22 折緣 23 折緣 40 風扇 41 罩體 411 開口 42 葉輪 50 電子裝置 51 出風口[Main component symbol description] 1 Airflow check structure 10 Frame 11 Coaming plate 111 Perforation 12 Folding plate 20 Baffle 21 Protrusion 22 Folding edge 23 Folding edge 40 Fan 41 Cover 411 Opening 42 Impeller 50 Electronic device 51 Air outlet