200921973 九、發明說明· 【發明所屬之技術領域】 本發明係涉及一種燃料雷、、也 丁'+冤池，特別是指其雙 靠部位之密合構造型態之創新設計者。 椒相，'且 【先前技術】 ί 按，就一般燃料電池構造而言，雙極板係設置於模電 極組兩側，且雙極板所採用的材料須具備高導電性' 工專特性，目鈾雙極板的常見材料右^里 見材枓有石墨、鋁、不銹 :而所述雙極板之相對靠面μ 、 罪面咬有流道以作為導引燃料之通 道，使預定之反應氣體（如奇 g, s Α.., ^如風、氧）能夠經由該等流道到 達雙極板之間所組設的氣濟牌勒思 」机體擴散層，並進入一觸媒層 化學轉化反應生成電流，又所 又所述又極板亦同時提供傳導雷 流之功能，以將生成之雷、ρ丨、，难电 卞王战之家飢传以傳導至外部預設之迴路。 惟，習知燃料電池構造中，其雙極板與氣體擴散層之 間相組靠面係為剛硬面相互貼靠狀態，因此該二者之 面必須加工處理至相杏古认、了，针，±〜 # 、 田回的千整精後、度才能確保其達到所 要求的氣密程度，然如此一來 ,,,φ5 .. 采加工成本以及不良率顯相 對大^而不符較佳產業經濟效益；又，縱使該 與二體擴散層相組靠面達到所要求的平整嶽，於複數 組又極板與氣體擴散層相疊置鎖迫固定時，亦可能因為固 定件（如螺拴、鉚釘）琢 . )、反2所產生的局部應力現象而造 成又極板、氣體擴散； 形量縱使相春好Γ 變形現象’此變 ^亦將因為該雙極板與氣體擴散層相組 200921973 罪面為剛硬面相貼靠狀態而產生間隙。 承上’由於雙極板所設流道依其所預設導引之燃料（ 如氫、氧）屬性不同而必須加以區隔開來，以使其不同燃 料能夠按照預設的路徑流動，從氣體擴散層的相對不同方 向入以產生正確化學反應，依此，該雙極板與氣體擴散 層相組靠面的氣密狀態，即為不同燃料之流道空間能否確 貫隔開之重要因素，由此可知，前段所述雙極板與氣體擴 政層相組靠面容易產生間隙之情況，將會造成不同屬性的200921973 IX. INSTRUCTIONS DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a fuel mine, a Ding '+ Dianchi, and particularly an innovative designer of the close-knit configuration of the double-receiving portion. Pepper phase, 'and [prior art] ί Press, in terms of general fuel cell structure, the bipolar plate system is placed on both sides of the die electrode group, and the materials used in the bipolar plate must have high conductivity 'work characteristics. The common material of the uranium bipolar plate is graphite, aluminum, and stainless steel. The opposite surface of the bipolar plate is μ, and the sin surface bites the flow channel as a channel for guiding the fuel, so that the predetermined The reaction gases (such as odd g, s Α.., ^ such as wind and oxygen) can reach the gas diffusion layer of the gas-based Lexie body formed between the bipolar plates via these channels, and enter a catalyst. The chemical conversion reaction of the layer generates electric current, and the further plate also provides the function of conducting lightning flow, so as to pass the generated thunder, ρ丨, and dynasty to the external preset circuit. However, in the conventional fuel cell structure, the phase group between the bipolar plate and the gas diffusion layer is in a state in which the rigid surfaces abut each other, so the faces of the two must be processed and processed to the same level. Needle, ±~#, Tianhui's thousand fine finishing, degree can ensure that it reaches the required airtightness, and as a result, φ5 .. mining processing cost and non-performing rate are relatively large ^ does not match better Industrial economic benefits; in addition, even if the two-body diffusion layer is placed on the surface to achieve the required leveling, when the complex array and the gas diffusion layer are stacked and locked, it may also be due to fixing parts (such as snails).局部, rivet) 局部.), the local stress phenomenon caused by the reverse 2 causes the plate and gas to diffuse; the shape is even better for the phase spring. The deformation phenomenon will also be due to the bipolar plate and the gas diffusion layer. Group 200921973 The sinful face is a gap formed by the rigid surface. According to the fact that the flow paths of the bipolar plates are different according to their preset fuel (such as hydrogen and oxygen), they must be separated so that different fuels can flow according to the preset path. The gas diffusion layer enters in a relatively different direction to generate a correct chemical reaction. Accordingly, the airtight state of the bipolar plate and the gas diffusion layer is relatively close to each other, that is, whether the flow space of different fuels can be surely separated. Factor, it can be seen that the front side of the bipolar plate and the gas expansion layer are easy to create a gap on the surface, which will result in different properties.
燃料在未到達氣體擴散層之前即發生混合之現象，而此種 現象將隨著該不同燃料的混合輕重狀態而存在不同的問題 及隱憂，輕者對於燃料電池之發電效率而言顯然具有負面 衫響’重者更可能因為不同屬性燃料如氫、氧氣體的過量 直接接觸反應而有引發爆炸的危險性，此問題顯然是目前 雙極板複合式燃料電池結構設計上有必要迫切解決克服的 重要課題。 是以，針對上述習知燃料電池構造所存在之問題點， 如何研發出一種能夠更具理想實用性之創新構造，實有待 相關業界再加以思索突破之目標及方向者。 有鑑於此，發明人本於多年 ^千攸事相關產品之製造開發 與設計級驗’針對上述之目標， ^ 评加设计與審慎評估後， 終得一確具實用性之本發明。 【發明内容】 即’本發明之主要目的 構造，其所欲解決之問題點 係在提供一種燃料電池模組 係針對習知燃料電池模組仍 200921973 u存在其雙極板相組靠面無法達到穩固密合狀態而致影響 二&包效率及使用安全性之問題點加以思索突破；所述燃 ； 模、'且包括複數極板以及與極板相疊靠組合的氣體導 引t應層；該極板對應氣體導引反應層之該側面凹設有氣 -刀/瓜道極板於氣體分流道間隔處並設有貫穿極板兩側 面的第一、第二氣體主通道，該二氣體主通道與氣體分流 道之間再藉由連通道相連； 本發明解決問題之技術特點，主要在於該所述極板與 氣體導引反應層之間並組設有軟質氣密層；藉此創新獨特 s又计，使本發明對照先前技術而言，大致可達到如下優點 一使極板與氣體導引反應層之間可輕易達成穩固氣密靠 。狀恶，令不同燃料的流道空間能夠確實隔開而無滲漏誤 混之虞’進以達到大幅提昇燃料電池產品品質及使用安全 性之實用效益。 王 【實施方式】 ° 、2、3圖所示，係本發明燃料電池模組 構造之較佳實施例’惟此等實施例僅供說明之用，在專利 申請上亚不受此結構之限制；戶斤述燃料電池模組A係包括 複數極板10以及與極板1〇相疊靠組合的氣體導引反應層 20 ;其中所述極板1〇對應氣體導引反應層2〇之該側面：二 有氣體分流道11，戶斤㉛氣體分流道n可設成蛇形迁趣能樣 ，極板1。於氣體分流道η間隔處並設有貫穿極板】◦兩：面 200921973 的第一氣體主通道3丨以及第二氣體主通道32，藉以分別供 導引不同的燃料反應氣體如：氫氣、氧氣；該第一、第二 氣體主通道31、32與氣體分流道π之間再藉由連通道12相 連；本發明之主要核心設計在於·· 該所述極板10與氣體導引反應層20之間並組設有軟質 氣密層40者’所述軟質氣密層40如第2圖所示，可為—橡 膠或矽膠製成的墊片狀型態，藉以具備一定之彈韌氣密特 性，以當該極板1〇與氣體導引反應層2〇二者相互組靠且加 以鎖迫固定時，能夠利用該軟質氣密層4〇達到較佳氣密狀 態者。 其中，所述氣體導引反應層20之結構組成請對照第} 、2圖所示，係可包括一基板2i、以及設於該基板2丨中間 預定區域之膜電極組22、以及覆設於該膜電極組22二侧之 氣體擴散層23所構成者。 其中，所述連通道12可為一凹溝型態，其敞開側係藉 由該軟質氣密層40加以蓋合；又，所述凹溝型態之連通道 12斷面可為矩型態樣者。 其中，所述極板10與軟質氣密層40之間並可再組設有 一硬質支撐墊體50，所述硬質支撐墊體50可採用金屬薄板 或塑膠薄板構成，設置該硬質支撐墊體5〇之主要目的，係 藉以對軟質氣密層40面向極板1〇的該側面形成一種硬質面 ，^撐作用；因為極板10該側面之連通道12敞開側與軟質 氣密層40相對位處於相互迫壓靠合時，軟質氣密層4〇恐因 應力不均而於對應該連通道12敞開侧處產生鼓凸現象:因 200921973 此藉由該硬質支撐墊體50的頂靠撐持，得以解決此—問題 點。 又其中，所述複數極板10以及氣體導引反應層2〇相疊 罪組合狀悲係可藉由螺栓60配合螺帽61穿組鎖固達成定位 藉由上述結構組成設計，茲就本發明之使用作動情形 說明如下： 如第1圖所示，係為該燃料電池模組人之整體極板1〇 與虱體導引反應層20相疊靠組合狀態，其運作時，詳如第 3圖所不，係可藉由該第一氣體主通道以及第二氣體主通 道32各自導人不同氣體W1、W2 (如：氫氣、氧氣），該不 同氣體Wl ' W2將各自透過氣體導引反應層2〇不同側向的極 板10所設連通道12、氣體分流道11之導引，進入氣體導引 反應層20之氣體擴散層21、膜電極組22而產生反應， 學能轉換成電㊣；此運作過程中’藉由所述軟質氣密層 =設置’將可使各組極板1G與氣體導引反應層⑼之間的最 罪組合狀悲獲致最佳氣密狀態’以使不同氣體抑、於能： 確實依其所設路徑流動而無滲漏誤混之虞。 ^ 一每Η帛7圖：不’係為所述軟質氣密層結構型態的另 只關圖，本實施例之軟質氣密層娜係'設為一種環條 狀型恶（即類似一般所稱〇形 ’、 親其它具有彈性之材…i，）可採用橡勝、 ^ m /4衣成，5亥裱條狀型態之軟質氣 油層40B之型態可配合螺 、虱The phenomenon that the fuel mixes before reaching the gas diffusion layer, and this phenomenon will have different problems and concerns with the mixed light and heavy state of the different fuels, and the lighter obviously has a negative shirt for the power generation efficiency of the fuel cell. It is more likely that the heavy one is likely to cause an explosion due to the excessive direct contact reaction of different attribute fuels such as hydrogen and oxygen gas. This problem is obviously an important need to overcome the urgent need to overcome the structural design of the bipolar plate composite fuel cell. Question. Therefore, in view of the problems existing in the above-mentioned conventional fuel cell structure, how to develop an innovative structure that can be more ideal and practical, and the relevant industry should further consider the goals and directions of breakthrough. In view of this, the inventor has been in the manufacturing development and design level inspection of related products for many years. In view of the above objectives, ^ after the evaluation design and prudent evaluation, the invention has finally become practical. SUMMARY OF THE INVENTION The present invention is directed to the main object of the present invention. The problem to be solved is that a fuel cell module is provided for a conventional fuel cell module, and the bipolar plate phase group cannot be reached in 200921973. Considering the problem of stabilizing the tightness state and affecting the efficiency of the second & package and the safety of use; the combustion; the mold, and including the complex plate and the gas guiding t layer combined with the plate Corresponding to the side of the gas guiding reaction layer, the gas plate is provided with a gas-knife/guap plate in the gas distribution channel interval and is provided with first and second gas main channels penetrating both sides of the plate, the two The gas main channel and the gas distribution channel are connected by a connecting channel; the technical feature of the present invention is mainly to provide a soft airtight layer between the electrode plate and the gas guiding reaction layer; Innovative and unique, the present invention can achieve the following advantages in comparison with the prior art: a stable airtightness can be easily achieved between the electrode plate and the gas guiding reaction layer. The evil shape allows the flow space of different fuels to be separated without any leakage and misunderstanding. In order to achieve a practical benefit of greatly improving the quality and safety of fuel cell products. [Embodiment] °, 2, 3 is a preferred embodiment of the fuel cell module construction of the present invention, but these embodiments are for illustrative purposes only, and are not limited by this structure in patent applications. The fuel cell module A includes a plurality of plates 10 and a gas guiding reaction layer 20 combined with the plates 1 ;; wherein the plates 1 〇 correspond to the gas guiding reaction layer 2 Side: Two gas distribution channels 11, the household gas 31 gas distribution channel n can be set to a snake-like relocation, the plate 1. The gas main channel η is spaced apart and is provided with a first gas main channel 3丨 and a second gas main channel 32 penetrating the plates 2: face 200921973, respectively, for respectively guiding different fuel reaction gases such as hydrogen and oxygen. The first and second gas main passages 31, 32 are connected to the gas bypass π by a connecting passage 12; the main core design of the present invention is that the electrode plate 10 and the gas guiding reaction layer 20 are As shown in Fig. 2, the soft inner liner 40 is provided with a soft inner liner 40, which may be a gasket-like type made of rubber or silicone, thereby having a certain elastic toughness and airtightness. The characteristic is that when the electrode plate 1 and the gas guiding reaction layer 2 are placed against each other and locked and fixed, the soft airtight layer 4 can be used to achieve a better airtight state. The structure of the gas guiding reaction layer 20 may include a substrate 2i, a membrane electrode group 22 disposed in a predetermined region in the middle of the substrate 2, and a coating layer as shown in FIGS. 2 and 2, and The gas diffusion layer 23 is formed on both sides of the membrane electrode assembly 22. Wherein, the connecting channel 12 can be a groove type, and the open side is covered by the soft airtight layer 40; further, the groove type of the groove type can be a rectangular shape. Sample. A hard support pad 50 may be further disposed between the plate 10 and the soft inner liner 40. The hard support pad 50 may be formed by a thin metal plate or a plastic thin plate. The hard support pad body 5 is disposed. The main purpose of the crucible is to form a hard surface for the side of the soft inner liner 40 facing the pole plate 1; because the open side of the side wall of the connecting plate 12 is opposite to the soft inner liner 40 When the pressure is close to each other, the soft airtight layer 4 may cause bulging at the open side corresponding to the passage 12 due to the uneven stress: since the support of the hard support pad 50 is supported by 200921973, This is the solution to this problem. In addition, the complex plate 10 and the gas guiding reaction layer 2 can be combined with each other by the bolts 60 and the nut 61 to achieve positioning by the above-mentioned structural composition design. The operation situation is as follows: As shown in Fig. 1, the whole electrode plate 1 of the fuel cell module is stacked with the carcass guiding reaction layer 20, and its operation is as detailed as the third. In the figure, the first gas main channel and the second gas main channel 32 respectively lead different gases W1, W2 (eg, hydrogen, oxygen), and the different gases W1 'W2 will each pass through the gas guiding reaction. The layer 2 is connected to the channel 12 and the gas channel 11 of the different lateral plates 10, enters the gas diffusion layer 21 of the gas guiding reaction layer 20, and the membrane electrode group 22 reacts, and the learning energy is converted into electricity. Positive; during the operation, 'the soft airtight layer = setting' will make the most sinful combination between the set of plates 1G and the gas guiding reaction layer (9) to obtain the best airtight state' Different gases, energy: Yes, it does flow according to its path without leakage. Mixed danger. ^ 一Η帛7图: No' is a separate view of the soft airtight layer structure type, the soft airtight layer of the present embodiment is set to a ring-shaped type of evil (ie similar to the general The so-called 〇 shape ', the other elastic material ... i,) can be used to rubber, ^ m / 4 clothing, 5 裱 裱 strip type soft gas oil layer 40B type can be matched with snails, 虱
的八佑@ & 系缸㈨牙。又位置以及氣體分流道U 的刀佈位置作曲折狀之型態設計；又該極㈣表面可^ 200921973 有凹溝13以供所述環條狀型 固定位者。 & ^軟質氣密層40B嵌入以The eight-you-know [...] cylinder (nine) teeth. Further, the position and the position of the blade of the gas distributor U are in a zigzag pattern; and the surface of the pole (4) can be used in 200921973 to have a groove 13 for the ring-shaped fixed position. & ^ soft inner liner 40B is embedded with
又如第8圖所示，係為 另 方 ^ ^ ^ ''，、'、斤述軚質氣密層結構型態的 一貫施例圖，本實施例之軟 ,,, Λ| „ UL 貝礼密層40C係為利用塗佈 式所成型之層狀結構型態。 ^ 【本發明之優點】 主要措由该極板愈顏㈣道 伋興虱肢導引反應層之間並組設有軟質 氣密層之：新獨特設計，相較於【先前技術】所提習 失一構""'而：#旎夠使極板與氣體導引反應層之間可 輕易達成穩固氣麥责人灿# ,, 在罪σ狀恕，對於該極板與氣體導引 反應層之表面加工精度要求將可大幅降低而減降不良 率及製k成本，藉由該軟質氣密層的設置得以令不同 燃料的流道空間能夠確實隔開而無滲漏誤混之虞，進 以達到大幅提昇燃料電池產品品質以及使用安全性之 實用效益。 .藉由所述極板與軟質氣密層之間並增設有硬質支撐墊 體之結構設計，俾可對軟質氣密層面向極板的該側面 形成一種硬質面狀支撐作用；藉以可有效防止軟質氣 密層對應極板連通道敞開侧處產生鼓凸之現象發生: ，進而更進一步提昇燃料電池模組之組配品質。 •所述連通道設為凹溝型態之設計，使得該連通道製造 成型上，將可於極板製成其氣體分流道加工過程中， 可藉由同軸加工刀具一次銑切成型該連通道，藉此而 10 200921973 降低其製造成本而更 能進一步提昇該極板製程效率 切合產業利用效益者。 雖透過特定的術語進行說明，卷=說明本發明，且文中 利範圍；I嫩項技術領域之二：=定本發明之專 神與原則後對其進行變更與修改而；明之精 堂 寸蚁之目的，而止卜 ◎ 〜受更與修改，皆應涵蓋於如后所述之申請專利範圍所界 定範疇中。 1 11 200921973 圖式簡單說明】 第 1圖 :本發 明 較 佳 實 施 例 第： 2圖 :本發 明 局 部 構件 之 第： 3圖 •本發 明 之 局 部 結 構 不思 0 第L 1圖 :本發 明 之 極 板 平 面 第E 5圖 •本發 明 之 極 板 與軟 部分解 立 體 示 意 圖 第ί ;圖： :係承 第 5 圖 之 組 合 第1 7圖： :本發 明 之 軟 質 氣 密 第S ί圖： :本發 明 之 軟 質 氣 密 之組合剖視圖。 分解立體圖。 組合剖視圖以及氣體流動狀熊 圖。 質氣密層、硬質支撐墊體之局 0 立體狀態圖。 層結構型態另一實施例圖。 層結構型態又一實施例圖。 【主要元件符號說明】 燃料電池模組 A 極板 10 氣體分流道 11 連通道 1 2 凹溝 13 氣體導引反應層 2 0 氣體擴散層 2 1 膜電極組 2 2 氧體擴散層 12 200921973 第一氣體主通道 第二氣體主通道 軟質氣密層 硬質支撐墊體 螺栓 螺帽 fAs shown in Fig. 8, it is a consistent example of the other type of ^ ^ ^ '', ', jin, 軚 气 气 , , , , , , , , , UL UL UL UL UL UL UL UL UL UL UL UL UL The layer of secret layer 40C is a layered structure formed by coating. ^ [Advantages of the present invention] The main method is to make the electrode of the plate (4) Soft airtight layer: the new unique design, compared with the [previous technology] proposed to lose a structure "" and: #旎 enough to make the plate and the gas guiding reaction layer can easily reach a stable gas Responsible for the ##,, in the sin, the surface processing accuracy requirements for the plate and the gas guiding reaction layer can be greatly reduced to reduce the defect rate and the cost of the k by the soft airtight layer. It is possible to ensure that the flow space of different fuels can be surely separated without leakage and mixing, so as to achieve a practical benefit of greatly improving the quality of the fuel cell product and the safety of use. By the plate and the soft airtight layer A structural design of the hard support pad body is added between the sides, and the side surface of the soft airtight layer facing the electrode plate It forms a hard surface supporting effect; thereby effectively preventing the occurrence of bulging at the open side of the soft airtight layer corresponding to the plate connecting channel: further improving the assembly quality of the fuel cell module. The design of the groove type is such that the connecting channel can be formed and formed in the gas shunting process of the electrode plate, and the connecting channel can be formed by one-time milling of the coaxial processing tool, thereby 10 200921973 Reduce the manufacturing cost and further improve the efficiency of the plate process to meet the industrial utilization efficiency. Although explained by specific terms, volume = description of the invention, and the scope of the text; The purpose and principle of the invention shall be changed and modified; the purpose of the Ming dynasty ants shall be fixed, and the stipulations shall be included in the scope of the patent application scope as described later. 1 11 200921973 Schematic description of the drawings: Figure 1: Preferred embodiment of the invention: Figure 2: Part of the partial components of the invention: 3 Figure • The bureau of the invention Structure does not think 0 L L1: the plate plane E 5 of the present invention • The schematic diagram of the plate and the soft part of the present invention is 第 ; Fig. : : The combination of the 5th figure is shown in Figure 17: Soft airtightness of the invention: Fig.: sectional view of the soft airtight combination of the present invention. Exploded perspective view. Combined sectional view and gas flow bear figure. Another embodiment of the structure type diagram. Another embodiment of the layer structure type. [Explanation of main component symbols] Fuel cell module A plate 10 gas distributor 11 connection channel 1 2 groove 13 gas guiding reaction layer 2 0 gas diffusion layer 2 1 membrane electrode group 2 2 oxygen diffusion layer 12 200921973 first gas main channel second gas main channel soft airtight layer hard support pad bolt nut f