TWM451674U - Sealing configuration and electricity supply device - Google Patents
Sealing configuration and electricity supply device Download PDFInfo
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- TWM451674U TWM451674U TW101219942U TW101219942U TWM451674U TW M451674 U TWM451674 U TW M451674U TW 101219942 U TW101219942 U TW 101219942U TW 101219942 U TW101219942 U TW 101219942U TW M451674 U TWM451674 U TW M451674U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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本創作關於一種密封結構及其應用之電能供應裝置，特別關於一種有助於提高密封效果並降低製程成本的密封結構及其應用之電能供應裝置。The present invention relates to a power supply device for a sealing structure and its application, and more particularly to a power supply device for a sealing structure and an application thereof which contribute to an improvement in sealing effect and a reduction in process cost.
為了環境的永續發展，目前用以實現綠色能源最佳的手段即為發展燃料電池技術，其係為一種可將燃料之化學能經由電化學反應直接產生電能的裝置。For the sustainable development of the environment, the current best means to achieve green energy is to develop fuel cell technology, which is a device that can directly generate electrical energy from the chemical energy of fuel through electrochemical reaction.
如圖1所示，其係為習知燃料電池裝置的分解結構示意圖。在習知的燃料電池裝置1中，由上至下依序包含有導電基板12a、擴散層14a、膜電極16、擴散層14b、導電基板12b。As shown in FIG. 1, it is a schematic exploded view of a conventional fuel cell device. In the conventional fuel cell device 1, the conductive substrate 12a, the diffusion layer 14a, the membrane electrode 16, the diffusion layer 14b, and the conductive substrate 12b are sequentially included from top to bottom.
其中，導電基板12a與導電基板12b分別具有反應區Ra、Rb與傳輸區Ta、Tb；當導電基板12a為陰極時，則導電基板12b為陽極，且藉由傳輸區Ta、Tb俾使流體可流動於導電基板12a與導電基板12b，而以上述的陰、陽極的態樣為例，流動於導電基板12a與導電基板12b的流體分別稱為陰極流體(圖未顯示)與陽極流體(圖未顯示)，反之亦然。為了電性上的導通，鄰設於導電基板12a的擴散層14a與鄰設於導電基板12b的擴散層14b亦具有導電能力。而夾設於擴散層14a與擴散層14b之間的膜電極16係與導電基板12a與導電基板12b上的反應區Ra、 Rb對應設置，且膜電極16係包含有觸媒層161、162與夾設於其中的質子交換層163，所述的質子交換層163係為固態之電解質，藉由質子交換層163以分隔觸媒層161、162，並使流動於導電基板12a與導電基板12b的流體不至於彼此混合。The conductive substrate 12a and the conductive substrate 12b have reaction regions Ra and Rb and the transfer regions Ta and Tb, respectively. When the conductive substrate 12a is a cathode, the conductive substrate 12b is an anode, and the fluid can be made by the transfer regions Ta and Tb. Flowing on the conductive substrate 12a and the conductive substrate 12b, the fluid flowing on the conductive substrate 12a and the conductive substrate 12b is exemplified as a cathode fluid (not shown) and an anode fluid, respectively. Display) and vice versa. In order to electrically conduct, the diffusion layer 14a disposed adjacent to the conductive substrate 12a and the diffusion layer 14b disposed adjacent to the conductive substrate 12b also have electrical conductivity. The membrane electrode 16 interposed between the diffusion layer 14a and the diffusion layer 14b and the reaction region Ra on the conductive substrate 12a and the conductive substrate 12b, The Rb is disposed correspondingly, and the membrane electrode 16 includes a catalyst layer 161, 162 and a proton exchange layer 163 interposed therebetween. The proton exchange layer 163 is a solid electrolyte, and is separated by the proton exchange layer 163. The dielectric layers 161, 162 prevent the fluid flowing between the conductive substrate 12a and the conductive substrate 12b from mixing with each other.
另外，就習知燃料電池裝置而言，由於膜電極16將陰、陽極分隔於膜電極16的兩側，為避免流動於陰、陽極的流體發生洩漏或是彼此混合的情形，在膜電極16與導電基板12a、導電基板12b之間係分別設置有密封體18a、18b，且由於一般的流體多為氣態，因此密封體18a、18b亦稱為氣封(Gasket)。In addition, in the case of the conventional fuel cell device, since the membrane electrode 16 separates the cathode and the anode from both sides of the membrane electrode 16, in order to prevent the fluid flowing to the cathode or the anode from leaking or mixing with each other, the membrane electrode 16 is provided. The sealing bodies 18a and 18b are provided between the conductive substrate 12a and the conductive substrate 12b, respectively, and since the general fluid is mostly in a gaseous state, the sealing bodies 18a and 18b are also referred to as gas seals.
不過，由於習知技術中密封體18a、18b係分別設置在膜電極16的兩側，因此當目前的燃料電池裝置1在進行組裝時，為了各個組件的定位，首先必須先將密封體18a、18b置放在導電基板12a或導電基板12b上，以密封體18b首先置放於導電基板12b上為例來說，當密封體18b置放於導電基板12b上後，則可利用密封體18b為定位的依據以依序置放擴散層14b、膜電極16、擴散層14a、密封體18a與導電基板12a，然而，由於密封體18a、18b通常並非固定黏著於導電基板12a、12b上，因此經常會因為密封體18a、18b本身的滑動或移動而導致各個組件在定位上發生困難，更可能因此導致密封效果不佳，此外，也可能因為密封體18a、18b與膜電極16之間的定位不準確，在一段操作時間之後，則相當容易因震動或熱漲冷縮的效 應而導致導致密封體18a、18b與膜電極16之間產生移位的現象，因而影響到整體燃料電池裝置1的使用壽命，其次，對於習知的燃料電池裝置1而言，由於在單一裝置中係採用兩個密封體18a、18b，因此在材料的成本上始終居高不下，又同時因為組裝不確定因素過多導致產能無法提升，終使燃料電池裝置1的製程成本居高不下。However, since the sealing bodies 18a, 18b are respectively disposed on both sides of the membrane electrode 16 in the prior art, when the current fuel cell device 1 is assembled, for the positioning of each component, the sealing body 18a must first be first 18b is placed on the conductive substrate 12a or the conductive substrate 12b, and the sealing body 18b is first placed on the conductive substrate 12b. For example, when the sealing body 18b is placed on the conductive substrate 12b, the sealing body 18b can be used. The positioning is based on sequentially placing the diffusion layer 14b, the membrane electrode 16, the diffusion layer 14a, the sealing body 18a, and the conductive substrate 12a. However, since the sealing bodies 18a, 18b are not normally fixedly adhered to the conductive substrates 12a, 12b, they are often The positioning of the respective components may be difficult due to the sliding or movement of the sealing bodies 18a, 18b themselves, which may result in poor sealing effect, and may also be due to the positioning between the sealing bodies 18a, 18b and the membrane electrode 16. Accurate, after a period of operation, it is quite easy to be affected by vibration or heat This should result in a phenomenon of displacement between the sealing bodies 18a, 18b and the membrane electrode 16, thus affecting the service life of the overall fuel cell device 1, and secondly, for the conventional fuel cell device 1, due to the single device The middle system adopts two sealing bodies 18a and 18b, so the cost of the material is always high, and at the same time, the production capacity cannot be increased due to excessive assembly uncertainty factors, and the process cost of the fuel cell device 1 is high.
基於上述習知技術中所遭遇的瓶頸，本創作係揭露一種密封結構及其應用之電能供應裝置，其係採用全新的密封結構設計，在不犧牲密封效果的前提下，藉由本創作所揭露的密封結構以簡化燃料電池裝置的組裝繁複程度，進而降低製程成本。Based on the bottleneck encountered in the above-mentioned prior art, the present invention discloses a sealing structure and an electrical energy supply device thereof, which adopts a novel sealing structure design, which is disclosed by the present invention without sacrificing the sealing effect. The sealing structure simplifies the assembly complexity of the fuel cell device, thereby reducing the process cost.
本創作之目的為提供一種密封結構及其應用之電能供應裝置，其係藉由密封結構以同時提供定位與密封的功效，俾使電能供應裝置的組裝流程得以簡化，進而提高製程良率、降低製程成本。The purpose of the present invention is to provide a sealing structure and an electrical energy supply device thereof, which are provided with a sealing structure to simultaneously provide positioning and sealing effects, thereby simplifying the assembly process of the electric energy supply device, thereby improving the process yield and reducing the process yield. Process cost.
本創作之目的為提供一種密封結構及其應用之電能供應裝置，其係藉由單一結構的設計以隔離電能供應裝置的陰、陽極流體。The purpose of this creation is to provide a sealed structure and an electrical energy supply device for the same, which is designed to isolate the cathode and anode fluids of the electrical energy supply device by a single structure design.
為達上述目的，本創作係揭露一種密封結構，其係應用於一電能供應裝置，電能供應裝置係包含有二導電基板及夾設於導電基板的一化電轉換模組，且化電轉換模組係包含有二擴散單元與夾設於擴散單元的一膜電極單元，密 封結構係包含一第一凸結構以及一第二凸結構，第一凸結構係頂設於二導電基板，且其中一擴散單元之至少一側與膜電極單元之至少一側係頂抵於第一凸結構之至少一側的內側緣，第二凸結構則係鄰設於第一凸結構，且頂設於另一導電基板與膜電極單元，另一擴散單元之至少一側係頂抵於第二凸結構之至少一側的內側緣。In order to achieve the above object, the present invention discloses a sealing structure which is applied to an electric energy supply device, which comprises a two-conducting substrate and a chemical conversion module sandwiched between the conductive substrates, and a power conversion module. The group includes a two diffusion unit and a membrane electrode unit sandwiched between the diffusion unit, dense The sealing structure includes a first convex structure and a second convex structure. The first convex structure is disposed on the two conductive substrates, and at least one side of one of the diffusion units and the at least one side of the membrane electrode unit are in contact with the first An inner edge of at least one side of the convex structure, the second convex structure is disposed adjacent to the first convex structure, and is disposed on the other conductive substrate and the membrane electrode unit, and at least one side of the other diffusion unit is affixed to the top An inner edge of at least one side of the second convex structure.
此外，上述的第一凸結構與第二凸結構係為獨立之結構；上述的第一凸結構與第二凸結構係為一體成型之結構；上述的第一凸結構與第二凸結構的至少其一係為彈性體；上述的第一凸結構與第二凸結構的至少其一的材質係選自於矽膠、聚氯乙稀、聚乙稀、聚丙稀、聚苯乙烯及其組合；上述的第一凸結構與第二凸結構更為相同尺寸之結構或不相同尺寸之結構；上述的第一凸結構與第二凸結構的至少其中之一更連續或不連續地環設於導電基板的周緣；上述的每一導電基板具有至少一反應區域及至少二流體傳輸區域，其中，密封結構更連續或不連續地環設於反應區域的周緣，密封結構更連續或不連續地環設於流體傳輸區域的周緣。In addition, the first convex structure and the second convex structure are independent structures; the first convex structure and the second convex structure are integrally formed; the first convex structure and the second convex structure are at least The first one is an elastomer; the material of at least one of the first convex structure and the second convex structure is selected from the group consisting of silicone, polyvinyl chloride, polyethylene, polypropylene, polystyrene, and combinations thereof; The first convex structure and the second convex structure are more of the same size or different sizes; the first convex structure and the second convex structure are more continuously or discontinuously looped on the conductive substrate. The periphery of each of the conductive substrates has at least one reaction zone and at least two fluid transmission zones, wherein the sealing structure is more continuously or discontinuously disposed around the periphery of the reaction zone, and the sealing structure is more continuously or discontinuously ringed on The circumference of the fluid transfer area.
為達上述目的，本創作係揭露一種電能供應裝置，其係包含二導電基板、一化電轉換模組及一密封結構，化電轉換模組係夾設於導電基板且包含二擴散單元及一膜電極單元，其中一擴散單元係鄰設於一導電基板，另一擴散單元係鄰設於另一導電基板，膜電極單元則係夾設於二擴散單元，密封結構係包含一第一凸結構及一第二凸結構， 第一凸結構係頂設於導電基板，且其中一擴散單元之至少一側與膜電極單元之至少一側係頂抵於第一凸結構之至少一側的內側緣，第二凸結構則係鄰設於第一凸結構，且第二凸結構之至少一側頂設於另一導電基板之至少一側與膜電極單元之至少一側。In order to achieve the above object, the present invention discloses a power supply device comprising a second conductive substrate, a power conversion module and a sealing structure. The power conversion module is sandwiched between the conductive substrate and includes a diffusion unit and a diffusion unit. a membrane electrode unit, wherein a diffusion unit is disposed adjacent to a conductive substrate, another diffusion unit is disposed adjacent to another conductive substrate, and the membrane electrode unit is sandwiched between the two diffusion units, and the sealing structure comprises a first convex structure. And a second convex structure, The first convex structure is disposed on the conductive substrate, and at least one side of one of the diffusion units and the at least one side of the membrane electrode unit are abutted against the inner edge of at least one side of the first convex structure, and the second convex structure is Adjacent to the first convex structure, at least one side of the second convex structure is disposed on at least one side of the other conductive substrate and at least one side of the membrane electrode unit.
此外，所述的每一導電基板具有至少一反應區域及至少二流體傳輸區域，且反應區域係與化電轉換模組對應設置；所述的反應區域更設置至少一導流道；所述的密封結構更連續或不連續地環設於反應區域的周緣；所述的密封結構更連續或不連續地環設於流體傳輸區域的周緣；所述的至少一導電基板的表面更具有至少一定位結構，且定位結構係與密封結構對應設置；所述的至少一導電基板的表面更具有至少一固定結構，且固定結構係用以固定密封結構；所述的膜電極單元係包含二觸媒單元，其中一觸媒單元係夾設於導電基板與擴散單元，另一觸媒單元係夾設於另一導電基板與另一擴散單元，及一質子交換單元係夾設於觸媒單元；所述的第一凸結構與第二凸結構係為獨立之結構或一體成型之結構；所述的第一凸結構與第二凸結構的至少其一係為彈性體；所述的第一凸結構與第二凸結構的至少其一的材質係選自於矽膠、聚氯乙稀、聚乙稀、聚丙稀、聚苯乙烯及其組合；所述的第一凸結構與第二凸結構更為相同尺寸之結構或不相同尺寸之結構；所述的電能供應裝置係為燃料電池裝置。In addition, each of the conductive substrates has at least one reaction region and at least two fluid transmission regions, and the reaction region is disposed corresponding to the power conversion module; the reaction region is further provided with at least one flow guiding channel; The sealing structure is more continuously or discontinuously disposed around the circumference of the reaction area; the sealing structure is more continuously or discontinuously disposed around the circumference of the fluid transmission area; and the surface of the at least one conductive substrate further has at least one positioning The structure, and the positioning structure is disposed corresponding to the sealing structure; the surface of the at least one conductive substrate further has at least one fixed structure, and the fixing structure is used for fixing the sealing structure; the membrane electrode unit comprises a two-catalyst unit One of the catalyst units is sandwiched between the conductive substrate and the diffusion unit, the other catalyst unit is sandwiched between the other conductive substrate and the other diffusion unit, and a proton exchange unit is sandwiched between the catalyst units; The first convex structure and the second convex structure are independent structures or integrally formed structures; at least one of the first convex structures and the second convex structures is an elastic body The material of at least one of the first convex structure and the second convex structure is selected from the group consisting of silicone, polyvinyl chloride, polyethylene, polypropylene, polystyrene, and combinations thereof; the first convex structure A structure of the same size or a structure of a different size than the second convex structure; the power supply device is a fuel cell device.
據上可知，本創作所揭露之一種密封結構及其應用之 電能供應裝置，其係將密封結構直接夾置於二導電基板之間，此種設計除了可簡化電能供應裝置的組裝流程，進而使膜電極組的定位更為準確、簡便之外，同時也可在較低的成本下以單一密封結構以達到良好的密封效果，一方面可避免陰、陽極流體發生混合的情況，另一方面則可避免陰、陽極流體發生洩漏的問題。According to the above, a sealing structure and application thereof disclosed in the present invention The power supply device directly sandwiches the sealing structure between the two conductive substrates. This design not only simplifies the assembly process of the power supply device, but also makes the positioning of the membrane electrode group more accurate and simple, and also At a lower cost, a single sealing structure is used to achieve a good sealing effect, on the one hand, the mixing of the anode and the anode fluid can be avoided, and on the other hand, the leakage of the cathode and anode fluids can be avoided.
為說明本創作的技術特徵，以下將提出數種實施例以詳細說明本創作的技術特徵，更同時佐以圖式來輔助說明本創作所揭露之密封結構及其應用之電能供應裝置。In order to explain the technical features of the present invention, several embodiments will be set forth below to explain the technical features of the present invention in detail, and at the same time, to assist in explaining the sealing structure disclosed in the present invention and the power supply device thereof.
首先請參照圖2所示，其係為本創作所揭露之一種電能供應裝置的實施例。電能供應裝置2包含有二導電基板22a、22b、一化電轉換模組24及一密封結構26，化電轉換模組24係夾設於導電基板22a與導電基板22b之間，且包含二擴散單元24a、24b及一膜電極單元24c，其中一擴散單元24a係鄰設於一導電基板22a，另一擴散單元24b係鄰設於另一導電基板22b，膜電極單元24c則係夾設於二擴散單元24a、24b，密封結構26係包含一第一凸結構261及一第二凸結構262，第一凸結構261係頂設於導電基板22a，且其中一擴散單元24a與膜電極單元24c係頂抵於第一凸結構261的內側緣，第二凸結構262則係鄰設於第一凸結構261並頂設於另一導電基板22b與膜電極單元24c。其中，擴散單元24a與膜電極單元24c僅需其至 少一側與第一凸結構261之至少一側的內側緣頂設即可定位，本實施例並不加以限定必須完全頂抵。First, please refer to FIG. 2, which is an embodiment of a power supply device disclosed in the present disclosure. The power supply device 2 includes two conductive substrates 22a and 22b, a power conversion module 24, and a sealing structure 26. The power conversion module 24 is interposed between the conductive substrate 22a and the conductive substrate 22b, and includes two diffusions. The unit 24a, 24b and a membrane electrode unit 24c, wherein a diffusion unit 24a is disposed adjacent to a conductive substrate 22a, another diffusion unit 24b is disposed adjacent to the other conductive substrate 22b, and the membrane electrode unit 24c is sandwiched between two The diffusion unit 24a, 24b, the sealing structure 26 includes a first convex structure 261 and a second convex structure 262. The first convex structure 261 is disposed on the conductive substrate 22a, and one of the diffusion unit 24a and the membrane electrode unit 24c is The second convex structure 262 is disposed adjacent to the first convex structure 261 and is disposed on the other conductive substrate 22b and the membrane electrode unit 24c. Wherein, the diffusion unit 24a and the membrane electrode unit 24c only need to The lesser side and the inner edge of at least one side of the first convex structure 261 are disposed to be positioned, and the embodiment is not limited to be completely abutted.
更詳細來說，請同時參照圖2與圖3所示，其中圖3係為導電基板的結構圖，所示的導電基板22a及導電基板22b係分別作為電能供應裝置的陰極導電基板與陽極導電基板，且就所提供的功能而言，導電基板22a及導電基板22b具有至少一反應區域Ra’、Rb’與至少二流體傳輸區域Ta’、Tb’，其中，部分的流體傳輸區域Ta’、Tb’係用以使流體流入至反應區域Ra’、Rb’內，而部分的流體傳輸區域Ta’、Tb’則係用以使已反應的流體流出，由於反應區域Ra’、Rb’係為主要的化電轉換區域，因此反應區域Ra’、Rb’係與化電轉換模組24對應設置，且為提高流體的利用率，在反應區域Ra’、Rb’上更設置有導流道Sa’、Sb’，俾使從流體傳輸區域Ta’、Tb’流入的流體得以藉由蜿蜒且密集的導流道Sa’、Sb’以均勻地流動於反應區域Ra’、Rb’的各個角落，其中，導電基板22a、22b上的導流道Sa’、Sb’係可依據不同的需求而有不同的設計。當然，導電基板22a、22b可僅在單一表面上設置有導流道Sa’、Sb’，不過在實際的應用上，為達到特定的輸出電壓或輸出電流，係可以串聯或並聯的方式以連結多個電能供應裝置，而為實現如此的態樣，在導電基板22a或導電基板22b的主要表面上均可設置有導流道Sa’、Sb’，俾使單一個導電基板22a或導電基板22b即可同時應用在兩個電能供應裝置上，其中，本實施例所示即為單一導電基板22a(導電基板22b) 的兩個主要表面上均設有導流道Sa’、Sb’的態樣。In more detail, please refer to FIG. 2 and FIG. 3 at the same time, wherein FIG. 3 is a structural diagram of a conductive substrate, and the conductive substrate 22a and the conductive substrate 22b are respectively electrically conductive as a cathode conductive substrate and an anode. a substrate, and in terms of functions provided, the conductive substrate 22a and the conductive substrate 22b have at least one reaction region Ra', Rb' and at least two fluid transport regions Ta', Tb', wherein a portion of the fluid transport region Ta', Tb' is used to flow fluid into the reaction areas Ra', Rb', and part of the fluid transfer areas Ta', Tb' are used to flow the reacted fluid, since the reaction areas Ra', Rb' are The main chemical conversion region, so the reaction regions Ra', Rb' are arranged corresponding to the chemical conversion module 24, and in order to improve the utilization of the fluid, the flow path Sa is further provided on the reaction regions Ra', Rb'. ', Sb', so that the fluid flowing in from the fluid transfer regions Ta', Tb' can be uniformly flowed through the respective regions of the reaction regions Ra', Rb' by the dense and small guide channels Sa', Sb' , wherein the conductive substrates 22a, 22 The guides Sa', Sb' on b can be designed differently depending on different needs. Of course, the conductive substrates 22a, 22b may be provided with the flow paths Sa', Sb' on only a single surface, but in practical applications, in order to achieve a specific output voltage or output current, they may be connected in series or in parallel. a plurality of electric energy supply devices, and in order to achieve such a state, the main surfaces of the conductive substrate 22a or the conductive substrate 22b may be provided with the flow paths Sa', Sb' to make the single conductive substrate 22a or the conductive substrate 22b It can be applied to two power supply devices at the same time, wherein the single conductive substrate 22a (conductive substrate 22b) is shown in this embodiment. The two main surfaces are provided with the guides Sa', Sb'.
另外，由於導電基板22a、22b必須兼具有適當的剛性(用以支撐、保護夾設於其內的構件)、適當的彈性(用以吸收組裝時的結構應力)及良好的導電度，所採用的材料多為石磨與聚合物的組成物，當然金屬材料或合金材料亦為經常選用的材料。In addition, since the conductive substrates 22a, 22b must have both proper rigidity (to support and protect the members sandwiched therein), appropriate elasticity (to absorb structural stress during assembly), and good electrical conductivity, Most of the materials used are stone grinding and polymer compositions. Of course, metal materials or alloy materials are also frequently selected materials.
仍請參照圖2，所述的化電轉換模組24包含有二擴散單元24a、24b與一膜電極單元24c，其中膜電極單元24c係夾設在二擴散單元24a、24b之間並與導電基板22a、22b上的反應區域Ra’、Rb’對應設置，且於本實施例中所示的膜電極單元24c更包含有二觸媒單元241、242及一質子交換單元243，觸媒單元241與觸媒單元242係將質子交換單元243夾置於其中，換言之，以質子交換單元243為中心而論，向外延伸而出的構件係依序為觸媒單元241(觸媒單元242)及擴散單元24a(擴散單元24b)。Still referring to FIG. 2, the power conversion module 24 includes two diffusion units 24a and 24b and a membrane electrode unit 24c. The membrane electrode unit 24c is interposed between the two diffusion units 24a and 24b and is electrically conductive. The reaction regions Ra' and Rb' on the substrates 22a and 22b are disposed correspondingly, and the membrane electrode unit 24c shown in this embodiment further includes two catalyst units 241 and 242 and a proton exchange unit 243, and the catalyst unit 241. The catalyst unit 242 is disposed between the proton exchange unit 243, in other words, the proton exchange unit 243 is centered, and the outwardly extending members are sequentially the catalyst unit 241 (catalyst unit 242) and Diffusion unit 24a (diffusion unit 24b).
承上述，當導電基板22a係做為電能供應裝置的陰極基板時，夾設於導電基板22a與質子交換單元243之間的擴散單元24a與觸媒單元241在電性上亦均為陰極，反之，當導電基板22a為陽極基板，則夾設於導電基板22a與質子交換單元243之間的擴散單元24a與觸媒單元241在電性上亦均為陽極。In the above, when the conductive substrate 22a is used as the cathode substrate of the power supply device, the diffusion unit 24a and the catalyst unit 241 interposed between the conductive substrate 22a and the proton exchange unit 243 are also electrically cathodes, and vice versa. When the conductive substrate 22a is an anode substrate, the diffusion unit 24a and the catalyst unit 241 interposed between the conductive substrate 22a and the proton exchange unit 243 are also electrically anodes.
請同時參照圖2與圖4所示，圖4係為本創作所揭露之電能供應裝置的截面示意圖。所示的密封結構26包含有一第一凸結構261與一第二凸結構262，其中第一凸結 構261的尺寸係大於第二凸結構262的尺寸，於此係以第一凸結構261的厚度δ 1大於第二凸結構262的厚度δ 2為例說明。Please refer to FIG. 2 and FIG. 4 at the same time. FIG. 4 is a schematic cross-sectional view of the power supply device disclosed in the present disclosure. The sealing structure 26 shown includes a first convex structure 261 and a second convex structure 262, wherein the first convex joint The size of the structure 261 is larger than the size of the second convex structure 262, and the thickness δ 1 of the first convex structure 261 is larger than the thickness δ 2 of the second convex structure 262 as an example.
更詳細來說，如圖4所示的密封結構26，其中第一凸結構261係頂設於導電基板22a與導電基板22b之間，且擴散單元24a與膜電極單元24c係頂抵於第一凸結構261的內側緣，換言之，在導電基板22a與膜電極單元24c之間，係藉由第一凸結構261以構成密封的空間，俾使自導電基板22a的流體傳輸區域Ta’流入的流體能夠密封在導電基板22a與膜電極單元24c之間，更可避免流體發生洩漏，或與外界流體混合；相似地，對於鄰設於第一凸結構261的第二凸結構262而言，由於第二凸結構262係頂設於導電基板22b與膜電極單元24c之間，因此藉由第二凸結構262係可使導電基板22b與膜電極單元24c之間構成另一密封的空間，是以，自導電基板22b的流體傳輸區域Tb’流入的流體能夠密封在導電基板22b與膜電極單元24c之間而不會洩漏至外界，或與外界流體混合，或與另一流體混合。In more detail, the sealing structure 26 is as shown in FIG. 4 , wherein the first protruding structure 261 is disposed between the conductive substrate 22 a and the conductive substrate 22 b , and the diffusion unit 24 a and the membrane electrode unit 24 c are firstly coupled to the first The inner edge of the convex structure 261, in other words, between the conductive substrate 22a and the membrane electrode unit 24c, constitutes a sealed space by the first convex structure 261, and the fluid flowing from the fluid transport region Ta' of the conductive substrate 22a The sealing between the conductive substrate 22a and the membrane electrode unit 24c can prevent the fluid from leaking or mixing with the external fluid; similarly, for the second convex structure 262 adjacent to the first convex structure 261, The two convex structures 262 are disposed between the conductive substrate 22b and the membrane electrode unit 24c. Therefore, the second convex structure 262 can form another sealed space between the conductive substrate 22b and the membrane electrode unit 24c. The fluid flowing in from the fluid transfer region Tb' of the conductive substrate 22b can be sealed between the conductive substrate 22b and the membrane electrode unit 24c without leaking to the outside, mixed with the external fluid, or mixed with another fluid.
另外，本實施例中所述的第一凸結構261與第二凸結構262係為一體成型之結構，換言之，第一凸結構261與第二凸結構262係彼此連結，不過基於不同的設計或需求，所述的第一凸結構261與第二凸結構262亦可為彼此獨立之結構。再，所述的密封結構26除了可設置於導電基板22a、22b的反應區域Ra’、Rb’周緣外，為避免流體 自流體傳輸區域Ta’、Tb’流入或流出時發生洩漏的情形，所述的密封結構26(包含第一凸結構261及第二凸結構262)更可設置於導電基板22a、22b的流體傳輸區域Ta’、Tb’周緣外。另，雖本實施例中的第一凸結構與261第二凸結構262係為連續之結構，不過依據不同的設計(例如：不同的導電基板22a、22b設計)，所述的第一凸結構261與第二凸結構262的至少其中之一者更可為不連續的結構。In addition, the first convex structure 261 and the second convex structure 262 described in this embodiment are integrally formed, in other words, the first convex structure 261 and the second convex structure 262 are connected to each other, but based on different designs or It is required that the first convex structure 261 and the second convex structure 262 are also independent structures. Further, the sealing structure 26 may be disposed outside the periphery of the reaction regions Ra', Rb' of the conductive substrates 22a, 22b to avoid fluids. The leakage structure may occur when the fluid transfer regions Ta', Tb' flow into or out, and the sealing structure 26 (including the first convex structure 261 and the second convex structure 262) may be disposed on the conductive substrate 22a, 22b for fluid transmission. The area Ta', Tb' is outside the circumference. In addition, although the first convex structure and the 261 second convex structure 262 in this embodiment are continuous structures, the first convex structures are according to different designs (for example, different conductive substrates 22a, 22b are designed). 261 and at least one of the second convex structures 262 may be a discontinuous structure.
而再以電能供應裝置的組裝流程來說，由於本創作所揭露的電能供應裝置2具有密封結構26，因此在組裝時，係可藉由先將密封結構26置放於導電基板22b上之後，再依序置放擴散單元24b、觸媒單元242、質子交換單元243、觸媒單元241、擴散單元24a，最後在置放另一導電基板22a即可完成組裝。更詳細來說，擴散單元24b與觸媒單元242的尺寸(例如：面積)通常會設計為與第二凸結構262內緣面積相似或較小，因此擴散單元24b與觸媒單元242係可輕易地置放於第二凸結構262內，而膜電極單元24c的尺寸(例如：面積)則會稍微大於上述的擴散單元24b的尺寸，且膜電極單元24c係同時抵設於第一凸結構261與第二凸結構262，最後，在膜電極單元24c另一側的觸媒單元241與擴散單元24a的尺寸則通常會設計為與第一凸結構261內緣面積相似或較小，俾使觸媒單元241與擴散單元24a的置放變得更為簡單，由此可知，在膜電極單元24c一側的擴散單元24b與觸媒單元242係藉 由第二凸結構262以達到密封的效果，俾使此區域內的流體不會發生洩漏或與其他流體混合的問題，在膜電極單元24c另一側的擴散單元24a與觸媒單元241則係藉由第一凸結構261以達到密封的效果，俾使此區域內的流體不會發生洩漏或與其他流體混合的問題，當然，在反應區域Ra’、Rb’內，上述的兩流體則係藉由膜電極單元24c以達到隔離的效果。In the assembly process of the power supply device, since the power supply device 2 disclosed in the present application has the sealing structure 26, after the sealing structure 26 is placed on the conductive substrate 22b, the sealing structure 26 can be assembled. The diffusion unit 24b, the catalyst unit 242, the proton exchange unit 243, the catalyst unit 241, and the diffusion unit 24a are placed in order, and finally, the other conductive substrate 22a is placed to complete the assembly. In more detail, the size (eg, area) of the diffusion unit 24b and the catalyst unit 242 is generally designed to be similar to or smaller than the inner edge area of the second convex structure 262, so that the diffusion unit 24b and the catalyst unit 242 can be easily Placed in the second convex structure 262, the size (for example, area) of the membrane electrode unit 24c is slightly larger than the size of the diffusion unit 24b described above, and the membrane electrode unit 24c is simultaneously disposed on the first convex structure 261. And the second convex structure 262, finally, the size of the catalyst unit 241 and the diffusion unit 24a on the other side of the membrane electrode unit 24c is generally designed to be similar to or smaller than the inner edge area of the first convex structure 261. The placement of the medium unit 241 and the diffusion unit 24a becomes simpler, and it is understood that the diffusion unit 24b on the membrane electrode unit 24c side and the catalyst unit 242 are borrowed. The second convex structure 262 achieves the sealing effect, so that the fluid in the region does not leak or mix with other fluids, and the diffusion unit 24a and the catalyst unit 241 on the other side of the membrane electrode unit 24c are By the first convex structure 261 to achieve the sealing effect, the fluid in this region is not leaked or mixed with other fluids. Of course, in the reaction regions Ra', Rb', the above two fluids are The membrane electrode unit 24c is used to achieve the effect of isolation.
另，為使組裝流程更為簡單、便利，所述的導電基板22a、22b與密封結構26對應的位置上更可設置至少一定位結構Ca、Cb，俾使密封結構26能夠更容易且正確地置放在適當的位置上，舉例來說，定位結構Ca、Cb可為凹槽、凸槽或凸塊，於此係以凹槽為例說明之，因此，密封結構26可藉由導電基板22a、22b表面上的定位結構Ca、Cb以定位。此外，除了上述的定位結構Ca、Cb之外，更可在導電基板22a、22b上與密封結構26對應的位置上設置至少一固定結構(圖未顯示)，俾使密封結構26更能夠藉由固定結構以固定在導電基板22a、22b上，而更不容易因為密封結構26的滑動或位移而導致密封效果受到影響，其中，所述之固定結構的型態係可為勾體、凸槽或凸塊。In addition, in order to make the assembly process simpler and more convenient, at least one positioning structure Ca, Cb may be disposed at a position corresponding to the sealing structure 26 of the conductive substrate 22a, 22b, so that the sealing structure 26 can be more easily and correctly The positioning structure Ca, Cb can be a groove, a groove or a bump. For example, the groove is taken as an example. Therefore, the sealing structure 26 can be formed by the conductive substrate 22a. The positioning structures Ca, Cb on the surface of 22b are positioned. In addition, in addition to the above-mentioned positioning structures Ca, Cb, at least one fixing structure (not shown) may be disposed on the conductive substrates 22a, 22b corresponding to the sealing structure 26, so that the sealing structure 26 can be further enabled by The fixing structure is fixed on the conductive substrates 22a, 22b, and it is less likely to be affected by the sliding or displacement of the sealing structure 26, wherein the shape of the fixing structure may be a hook body, a convex groove or Bump.
值得一提的是，由於上述的密封結構26係可由彈性體所構成，其可能的材料可例如為矽膠、聚氯乙稀、聚乙稀、聚丙稀、聚苯乙烯或上述材料的組合，也因此，具有彈性的密封結構26係在電能供應裝置組裝的流程中可用 以吸收部分組裝的應力，如此，一方面係可藉由組裝時的應力來壓縮密封結構26並產生一定量的形變，以提升密封的效果，另一方面則由於具有彈性的密封結構26可額外吸收組裝的應力，俾使整體電能供應裝置2得承受更高的力量，進而達到加強電能供應裝置2的結構強度。It is worth mentioning that since the above-mentioned sealing structure 26 can be composed of an elastic body, the possible materials thereof can be, for example, silicone, polyvinyl chloride, polyethylene, polypropylene, polystyrene or a combination of the above materials. Therefore, the resilient sealing structure 26 is available in the process of assembling the power supply device. In order to absorb the stress of the partial assembly, on the one hand, the sealing structure 26 can be compressed by the stress at the time of assembly and a certain amount of deformation can be generated to enhance the sealing effect, and on the other hand, the elastic sealing structure 26 can be additionally The stress of the assembly is absorbed, so that the overall power supply device 2 can withstand higher forces, thereby achieving the structural strength of the enhanced power supply device 2.
綜合上述可知，本創作所揭露之一種密封結構及其應用之電能供應裝置，其係將密封結構直接夾置於二導電基板之間，此種設計除了可簡化電能供應裝置的組裝流程，進而使膜電極組的定位更為準確、簡便之外，同時也可在較低的成本下以單一密封結構以達到良好的密封效果，一方面可避免陰、陽極流體發生混合的情況，另一方面則可避免陰、陽極流體發生洩漏的問題。與習知技術相較，由習知技術多採用雙密封的技術來密封膜電極單元兩側的空間，因此在電能供應裝置組裝時，容易發生有構件錯位或不容易組裝的問題，然，本創作所揭露的密封結構則由於其係可在組裝時先置放於導電基板上，爾後再依序堆放其他構件，故可解決習知雙密封技術所遭遇到的瓶頸，並提供密封性佳、組裝容易...等的優點。In summary, the present invention discloses a sealing structure and an electrical energy supply device therefor, which directly sandwiches a sealing structure between two conductive substrates. This design not only simplifies the assembly process of the power supply device, but also enables The positioning of the membrane electrode assembly is more accurate and simple, and at the same time, a single sealing structure can be used at a lower cost to achieve a good sealing effect, on the one hand, the mixing of the anode and the anode fluid can be avoided, and on the other hand, The problem of leakage of the anode and anode fluids can be avoided. Compared with the prior art, the double-sealing technology is often used in the prior art to seal the space on both sides of the membrane electrode unit. Therefore, when the power supply device is assembled, there is a problem that the component is misaligned or not easily assembled. The sealing structure disclosed in the creation can be placed on the conductive substrate before assembly, and then other components are stacked in sequence, so that the bottleneck encountered by the conventional double sealing technology can be solved, and the sealing property is good. The advantages of easy assembly, etc.
以上所述僅為舉例性，而非為限制性者。任何未脫離本創作之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.
〔習知〕[study]
1‧‧‧燃料電池裝置1‧‧‧ fuel cell device
12a、12b‧‧‧導電基板12a, 12b‧‧‧ conductive substrate
14a、14b‧‧‧擴散層14a, 14b‧‧‧ diffusion layer
16‧‧‧膜電極16‧‧‧ membrane electrode
161、162‧‧‧觸媒層161, 162‧‧‧ catalyst layer
163‧‧‧質子交換層163‧‧‧Proton exchange layer
18a、18b‧‧‧密封體18a, 18b‧‧‧ Sealing body
Ta、Tb‧‧‧傳輸區Ta, Tb‧‧‧ transmission area
Ra、Rb‧‧‧反應區Ra, Rb‧‧‧ reaction zone
〔本創作〕[this creation]
2‧‧‧電能供應裝置2‧‧‧Power supply unit
22a、22b‧‧‧導電基板22a, 22b‧‧‧ conductive substrate
24‧‧‧化電轉換模組24‧‧‧Chemical conversion module
24a、24b‧‧‧擴散單元24a, 24b‧‧‧ diffusion unit
24c‧‧‧膜電極單元24c‧‧‧ membrane electrode unit
241、242‧‧‧觸媒單元241, 242‧‧‧ Catalyst unit
243‧‧‧質子交換單元243‧‧‧Proton exchange unit
26‧‧‧密封結構26‧‧‧ Sealing structure
261‧‧‧第一凸結構261‧‧‧First convex structure
262‧‧‧第二凸結構262‧‧‧second convex structure
Ra’、Rb’‧‧‧反應區域Ra’, Rb’‧‧‧ reaction area
Ta’、Tb’‧‧‧流體傳輸區域Ta’, Tb’‧‧‧ fluid transfer area
Sa’、Sb’‧‧‧導流道Sa’, Sb’‧‧‧ Guide
Ca、Cb‧‧‧定位結構Ca, Cb‧‧‧ positioning structure
δ 1、δ 2‧‧‧厚度δ 1, δ 2‧‧‧ thickness
圖1為習知燃料電池裝置的分解結構示意圖； 圖2為本創作所揭露之一種電能供應裝置的實施例；圖3為導電基板的結構圖；以及圖4為圖2所述之電能供應裝置的截面示意圖。1 is a schematic exploded view of a conventional fuel cell device; 2 is an embodiment of a power supply device disclosed in the present application; FIG. 3 is a structural view of a conductive substrate; and FIG. 4 is a schematic cross-sectional view of the power supply device illustrated in FIG.
2‧‧‧電能供應裝置2‧‧‧Power supply unit
22a、22b‧‧‧導電基板22a, 22b‧‧‧ conductive substrate
24‧‧‧化電轉換模組24‧‧‧Chemical conversion module
24a、24b‧‧‧擴散單元24a, 24b‧‧‧ diffusion unit
24c‧‧‧膜電極單元24c‧‧‧ membrane electrode unit
241、242‧‧‧觸媒單元241, 242‧‧‧ Catalyst unit
243‧‧‧質子交換單元243‧‧‧Proton exchange unit
26‧‧‧密封結構26‧‧‧ Sealing structure
261‧‧‧第一凸結構261‧‧‧First convex structure
262‧‧‧第二凸結構262‧‧‧second convex structure
Ra’、Rb’‧‧‧反應區域Ra’, Rb’‧‧‧ reaction area
Sa’、Sb’‧‧‧導流道Sa’, Sb’‧‧‧ Guide
Ta’、Tb’‧‧‧流體傳輸區域Ta’, Tb’‧‧‧ fluid transfer area
Claims (23)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101219942U TWM451674U (en) | 2009-09-15 | 2009-09-15 | Sealing configuration and electricity supply device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101219942U TWM451674U (en) | 2009-09-15 | 2009-09-15 | Sealing configuration and electricity supply device |
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| Publication Number | Publication Date |
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| TWM451674U true TWM451674U (en) | 2013-04-21 |
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| Country | Link |
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| TW (1) | TWM451674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10326151B2 (en) | 2016-10-31 | 2019-06-18 | Industrial Technology Research Institute | Modular structure of fuel cell |
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2009
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10326151B2 (en) | 2016-10-31 | 2019-06-18 | Industrial Technology Research Institute | Modular structure of fuel cell |
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