M405539 五、新型說明： 【新型所屬之技術領域】 本實用新型係關於一種通氣器，且特定言之，本實用新 型係關於具有一防水可透氣隔膜之燈通氣器。 【先前技術】 目前室外燈以及某些類型的室内燈具有燈罩與玻璃之間 或在其他連接位置處的密封環，以保證整個燈的機械密封 性能。然而，在燈内部溫度與外部溫度之間之巨大差異之 情況下’不可避免地存在燈外殼内側與外側之間壓力的巨 大差異’此對燈的機械密封系統而言確實是挑戰並導致高 故障風險。例如，一工作燈内與燈外之間壓力的差異將由 於突降的雨及溫度降低雨突然增加，因此導致水或灰塵容 易進入燈内。為解決上述問題，一防水可透氣隔膜通常係 經配置於燈上’以容許空氣通過而阻擋水或類似液體。舉 例而言，General Electric Company在2008年開發的經膨脹 聚四氟乙稀（ePTFE)可作為一種防水可透氣隔膜而使用。 此防水可透氣隔膜有利於平衡燈外殼内外的壓力，並藉此 有效地保護燈以抵禦燈的外側溫度的突然變化。 一般而δ ’經裝配有—防水可透氣隔膜的裝置被稱為— 通氣器。問題在於與外部環境部分連通之通氣器可能由於 環境變化而容易故障。在雨水累積於防水可透氣隔膜上之 情況下’通氣β受到阻擋無法保持與外側大氣連通因此產 生故障。 【新型内容】 149914.doc 為解決上述問題，本實用新型的發明者發明下述新穎的 通氣器。 本實用新型提供一種通氣器，其包括一防水可透氣隔膜 及一安裝裝置，該安裝裝置具有含一中空結構之一桿及在 该桿之一側的一頭部，該頭部包括一底壁，該底壁具有一 圓形孔與該桿之該中空部連通，且圍繞該底壁形成若干側 壁’若干通孔係形成於該等側壁中，一緊固罩蓋與該頭部 協作且其間形成有一腔室，其中該防水可透氣隔膜係安裝 於該桿内’且其中該等通孔、該腔室及該圓形孔連通地連 接該通氣器之内側及外側。 由於該緊固罩蓋與該頭部之該協作結構，防止雨水累積 於根據本實用新型之該實施例之該通氣器之該防水可透氣 5¾膜上’以保證該防水可透氣隔膜與外側連通並更有效地 保護該等燈抵禦該等燈的外側溫度的突然變化。 【實施方式】 透過根據本實用新型之一例示性實施例之下列圖式將更 顯而易見本實用新型之細節及優點。 圖1係繪示根據本實用新型之一實施例之該通氣器100的 結構之一示意圖，該通氣器適用於一燈或其他裝置。該通 氣器包括一防水可透氣隔膜3及用於安裝該防水可透氣隔 膜3之一安裝裝置。 該通氣器100包括—八角吊環螺栓2。該螺栓2包括在内 壁及外壁兩者上具有螺紋之一中空螺桿2〇，以及在中央 (見圖2)用於與該螺桿之該中空部連通之具有—圓形孔27之 149914.doc Μ4Θ5539 一八角頭部210。一螺母9及一防水墊圈8與該螺栓2協作， 以將玄通氣器100固定至一燈或其他裝置上。該防水可透 轧隔膜3、該防水墊圈4、該支撐件5、該墊圈6及該内部螺 桿7將安裝於該螺桿2〇内。 該螺栓2藉由與該内部螺桿7接合而將該防水墊圈4固定 於垓通氣器1〇〇内。該防水墊圈4在上表面上具有用於注入 液肢％之環形注入通道4丨；而該防水可透氣隔膜3係固定 至该防水墊圈4上，藉此該防水可透氣隔膜3及該防水墊圈 4係以該液體膠互相固定。該防水可透氣隔膜3及該防水墊 圈4係配置於該螺桿2〇内的該内部中空空間中而該支撐 件5在該防水墊圈4下。該支撐件5承載直徑稍小於該防水 墊圈4的内徑之一環形突出體5 1。該環形突出體5丨支撐該 防水墊圈4以防止由於該防水墊圈4的向内收縮而導致的變 ^ —角翼肋52係以使得三角翼肋突出於該防水墊圈4内 之一方式設於該環形突出體51内部。此等翼肋52避免在該 通氣器100的内壓力與外壓力之間之差異存在下該防水可 透氣隔膜3的向内變形。該内螺桿7係安裝於該螺栓2内， 使知其等係經由該等螺紋而互相固定。該墊圈6與該内螺 桿7協作以保護該支撐件5免於由於由該内螺桿了施加的過 量力而磨損。 該螺栓2具有一八角頭部2丨〇，其與一緊固罩蓋丨協作以 建立用於該防水可透氣隔膜3與外界之間的連通之一空氣 路徑。如圖2所示，該八角頭部21〇具有一水平底壁川二， 側壁201係圍繞該底壁的邊界而形成。通孔21係形成於該 149914.doc 等側壁之某些側壁中。該等通孔之下邊界係經配置於與該 水平底壁202相同之平面内或低於該水平底壁2〇2。翼肋22 及23係經配置於該等側壁内並以使得此等翼肋22及23位於 直接相對於該等通孔21並在該等通孔2丨與該底壁之該圓形 孔2 7之間之方式對應於該等通孔。一通道2 5係建立於每 一對翼肋22與23之間。一通道26係建立於任何兩個鄰近翼 肋22之間。該圓形孔27係由該等翼肋22包圍但經由該等通 道26及該等通孔21與外界連通。 如圖3所示，該緊固罩蓋丨在形狀上與該八角頭部21〇類 似以相互契合。該罩蓋具有沿著該邊界的若干緊固件〗2以 與該八角頭部210之該等側壁協作。一翼肋壁丨丨係經配置 於該等緊固件12向内之預定位置處，並呈一封閉迴路之形 式以與該八角頭部2 1 〇上的該等通道25協作。當該緊固罩 蓋1安裝於該八角頭部210上時，該翼肋壁11係位於該等翼 肋22與23之間的該等通道25中，而一特定距離係介於該翼 肋壁11與該八角頭部21〇之該底壁2〇2之間（見圖4及圖5) ’ 因此有一保持空氣循環空間形成於該翼肋壁11與該底壁 202之間。 因此’在該緊固罩蓋1安裝至該八角頭部2 1 0上之後，該 防水可透氣隔膜3經由該圓形孔27、該等通道26及該等通 孔21與外界連通’有效地防止該通氣器100由於内壓力與 外壓力之間的差異而損壞。在出現突然水流時，由於該緊 固罩蓋1及該八角頭部210之該協作結構，此水流將不會直 接作用於該防水可透氣隔膜3上而導致積水。當少量水經 1499I4.doc 由該等通孔210流入該頭部210内時，該等翼肋23阻擋水繼 續移動但慣性地沿著由該等翼肋23及該翼肋壁11形成的隔 板流動，並最終自·一鄰近通孔2 1流出。若少量水經由—通 道26流入該頭部2 1 0，此少量水將經由附近的另一通道26 沿著該底壁202流出，因為該底壁係水平配置的。已實驗 證明的是，由於本實用新型之實施例，幾乎無水能透過該 圓形孔27流向該防水可透氣隔膜3並因此附著至該隔膜3 上。 如圖所示，由於該緊固罩蓋i及該八角頭部21〇之該特別 迷宮式結構’該防水可透氣隔膜3可一方面與外界良好連 通’且另一方面被保護免於水流入。 在上文描述中，當介紹該等圖式中繪示的一元件相對於 另一元件之位置時，使用關於「上」、「上方」'「下」、「下 面」等等之空間位置之用語。應瞭解在空間位置上的此等 用語意欲涵蓋除該等圖式中揭示的此等定向之外之不同定 向。舉例而[當反轉該繪示的裝置時，描述為在另一元 件「下面」的該元件變成在另一元件或特徵部「上方 本實用新型的前文描述已經由較佳實施例呈現。然而， 熟習此項技術者可作出各種變動及替代而不背離本實用新 髮之精神及範圍。因此，本實 真用祈型之保護範圍係由附隨 申請專利範圍及均等特徵界定。 【圖式簡單說明】 圖1係根據本實用新型之_ ^ 貫施例之一通氣器之一分解 圖； 149914.doc M405539 圖2係根據本實用新型之該通氣器之該八角螺栓之一示 意圖； 圖3係根據本實用新型之該通氣器之該上罩蓋之一示意 圖， 圖4係係根據本實用新型之該通氣器之一部分剖視圖；及 圖5係係根據本實用新型之該通氣器之該上罩蓋在安裝 至該八角螺栓上之後之剖視圖。 【主要元件符號說明】 1 緊固罩蓋 2 八角吊環螺栓 3 防水可透氣隔膜 4 防水墊圈 5 支樓件 6 墊圈 7 内部螺桿 8 防水墊圈 9 螺母 11 翼肋壁 12 緊固件 20 中空螺桿 21 通孔 22 翼肋 23 翼肋 25 通道 149914.doc 1405539 26 通道 27 圓形孑L 41 環形注入通道 51 環形突出體 52 三角翼肋 100 通氣器 201 側壁 202 水平底壁 210 八角頭部 149914.doc - 10-M405539 V. New description: [New technical field] The present invention relates to a ventilator, and in particular, the utility model relates to a lamp ventilator having a waterproof and permeable membrane. [Prior Art] At present, outdoor lamps and some types of indoor lamps have a sealing ring between the lamp cover and the glass or at other connection positions to ensure the mechanical sealing performance of the entire lamp. However, in the case of a large difference between the internal temperature of the lamp and the external temperature, 'there is a huge difference in pressure between the inside and the outside of the lamp envelope', which is indeed a challenge to the mechanical sealing system of the lamp and leads to high failure. risk. For example, the difference in pressure between a work light and the outside of the lamp will result in a sudden increase in rain due to sudden drops of rain and temperature, thus causing water or dust to easily enter the lamp. In order to solve the above problems, a waterproof gas permeable membrane is usually disposed on the lamp to allow air to pass therethrough to block water or the like. For example, the expanded polytetrafluoroethylene (ePTFE) developed by the General Electric Company in 2008 can be used as a waterproof, gas permeable membrane. The waterproof, gas permeable membrane facilitates balancing the pressure inside and outside the lamp housing and thereby effectively protecting the lamp against sudden changes in the temperature of the outside of the lamp. A device in which a δ ' is equipped with a waterproof gas permeable membrane is generally referred to as a ventilator. The problem is that the ventilator that is partially connected to the external environment may be prone to failure due to environmental changes. In the case where rainwater accumulates on the waterproof gas permeable membrane, the ventilation β is blocked and cannot be kept in communication with the outside atmosphere, thus causing malfunction. [New content] 149914.doc In order to solve the above problems, the inventors of the present invention have invented the following novel ventilators. The utility model provides a ventilator comprising a waterproof gas permeable membrane and a mounting device, the mounting device having a rod comprising a hollow structure and a head on one side of the rod, the head comprising a bottom wall The bottom wall has a circular hole communicating with the hollow portion of the rod, and a plurality of side walls are formed around the bottom wall. A plurality of through holes are formed in the side walls, and a fastening cover cooperates with the head and A chamber is formed, wherein the waterproof gas permeable membrane is mounted in the rod and wherein the through holes, the chamber and the circular hole are communicably connected to the inner side and the outer side of the ventilator. Due to the cooperative structure of the fastening cover and the head, rainwater is prevented from accumulating on the waterproof and permeable membrane of the ventilator according to the embodiment of the present invention to ensure that the waterproof gas permeable membrane communicates with the outer side. And more effectively protect the lights against sudden changes in the outside temperature of the lamps. DETAILED DESCRIPTION OF THE INVENTION The details and advantages of the present invention will become more apparent from the following description of the exemplary embodiments. 1 is a schematic diagram showing the structure of the ventilator 100, which is suitable for use in a light or other device, in accordance with an embodiment of the present invention. The ventilator includes a waterproof gas permeable membrane 3 and a mounting device for mounting the waterproof gas permeable membrane 3. The ventilator 100 includes an octagonal eyebolt 2 . The bolt 2 includes a hollow screw 2〇 having a thread on both the inner wall and the outer wall, and a central hole (see FIG. 2) for communicating with the hollow portion of the screw, having a circular hole 27 of 149914.doc Μ4Θ5539 An octagonal head 210. A nut 9 and a waterproof gasket 8 cooperate with the bolt 2 to secure the ventilator 100 to a light or other device. The waterproof perforable diaphragm 3, the waterproof gasket 4, the support member 5, the gasket 6 and the inner screw 7 are mounted in the screw 2''. The bolt 2 is fixed to the hernia ventilator 1 by engaging the internal screw 7. The waterproof gasket 4 has an annular injection passage 4 for injecting a liquid limb on the upper surface; and the waterproof gas permeable membrane 3 is fixed to the waterproof gasket 4, whereby the waterproof gas permeable membrane 3 and the waterproof gasket 4 is fixed to each other with the liquid glue. The waterproof gas permeable membrane 3 and the waterproof gasket 4 are disposed in the inner hollow space in the screw 2, and the support member 5 is under the waterproof gasket 4. The support member 5 carries an annular projection 51 having a diameter slightly smaller than the inner diameter of the waterproof gasket 4. The annular protrusion 5 丨 supports the waterproof gasket 4 to prevent the angle rib 52 caused by the inward contraction of the waterproof gasket 4 so that the triangular rib protrudes from the waterproof gasket 4 The inside of the annular protrusion 51. These ribs 52 prevent inward deformation of the waterproof gas permeable membrane 3 in the presence of a difference between the internal pressure and the external pressure of the ventilator 100. The inner screw 7 is attached to the bolt 2 so that it is fixed to each other via the threads. The gasket 6 cooperates with the inner screw 7 to protect the support member 5 from wear due to excessive force applied by the inner screw. The bolt 2 has an octagonal head 2 丨 which cooperates with a fastening cover 建立 to establish an air path for communication between the waterproof gas permeable membrane 3 and the outside. As shown in FIG. 2, the octagonal head portion 21 has a horizontal bottom wall, and the side wall 201 is formed around the boundary of the bottom wall. The through holes 21 are formed in some of the side walls of the side wall such as 149914.doc. The lower boundary of the through holes is disposed in the same plane as or lower than the horizontal bottom wall 202. The ribs 22 and 23 are disposed in the side walls such that the ribs 22 and 23 are located directly opposite the through holes 21 and in the circular holes 2 of the through holes 2 and the bottom wall The manner between 7 corresponds to the through holes. A channel 2 5 is established between each pair of ribs 22 and 23. A passage 26 is formed between any two adjacent ribs 22. The circular holes 27 are surrounded by the ribs 22, but communicate with the outside via the channels 26 and the through holes 21. As shown in Fig. 3, the fastening cover 丨 is similar in shape to the octagonal head 21 so as to conform to each other. The cover has a plurality of fasteners 2 along the boundary to cooperate with the side walls of the octagonal head 210. A ribbed tether is disposed at a predetermined inward position of the fasteners 12 and is in the form of a closed loop to cooperate with the channels 25 on the octagonal head 2 1 〇. When the fastening cover 1 is mounted on the octagonal head 210, the rib wall 11 is located in the channels 25 between the ribs 22 and 23, and a specific distance is between the ribs Between the wall 11 and the bottom wall 2〇2 of the octagonal head 21〇 (see Figs. 4 and 5) 'therefore there is a holding air circulation space formed between the rib wall 11 and the bottom wall 202. Therefore, after the fastening cover 1 is mounted on the octagonal head 210, the waterproof gas permeable membrane 3 communicates with the outside via the circular hole 27, the channels 26 and the through holes 21 effectively The ventilator 100 is prevented from being damaged due to the difference between the internal pressure and the external pressure. In the event of a sudden flow of water, due to the cooperative structure of the tight cover 1 and the octagonal head 210, the water flow will not directly act on the waterproof gas permeable membrane 3 to cause water accumulation. When a small amount of water flows into the head 210 through the through holes 210 through the 1499I4.doc, the ribs 23 block the water from continuing to move but inertly along the partition formed by the ribs 23 and the rib walls 11. The plate flows and eventually flows out from a neighboring through hole 2 1 . If a small amount of water flows into the head 2 1 0 via the passage 26, this small amount of water will flow along the bottom wall 202 via another adjacent passage 26 because the bottom wall is horizontally disposed. It has been experimentally demonstrated that, due to the embodiment of the present invention, almost no water can flow through the circular hole 27 to the waterproof gas permeable membrane 3 and thus to the membrane 3. As shown, the special labyrinth structure of the fastening cover i and the octagonal head 21' can be in good communication with the outside on the one hand and protected from water inflow on the other hand. . In the above description, when describing the position of one element in the drawings relative to another element, the spatial positions of "upper", "above", "down", "below", etc. are used. term. It should be understood that such terms in spatial locations are intended to encompass different orientations than those disclosed in the drawings. By way of example, the elements described as "below" another element are turned "on" or "on" another element or feature. The foregoing description of the present invention has been presented by the preferred embodiments. Those skilled in the art can make various changes and substitutions without departing from the spirit and scope of this new practice. Therefore, the scope of protection of the actual use of the pray is defined by the scope of the accompanying patent application and the equivalent features. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of an ventilator according to one embodiment of the present invention; 149914.doc M405539 FIG. 2 is a schematic view of the octagonal bolt of the ventilator according to the present invention; A schematic view of the upper cover of the ventilator according to the present invention, FIG. 4 is a partial cross-sectional view of the ventilator according to the present invention; and FIG. 5 is a view of the ventilator according to the present invention. Cross-sectional view of the cover after mounting on the octagonal bolt. [Main component symbol description] 1 Fastening cover 2 Octagonal eye bolt 3 Waterproof and permeable diaphragm 4 Waterproof washer 5 Branch 6 Washer 7 Internal screw 8 Waterproof washer 9 Nut 11 Wing wall 12 Fastener 20 Hollow screw 21 Through hole 22 Wing rib 23 Wing rib 25 Channel 149914.doc 1405539 26 Channel 27 Round 孑L 41 Ring injection channel 51 Annular protrusion 52 delta rib 100 ventilator 201 side wall 202 horizontal bottom wall 210 octagonal head 149914.doc - 10-