CN220963408U - Integrated gas distributor for fuel cell - Google Patents
Integrated gas distributor for fuel cell Download PDFInfo
- Publication number
- CN220963408U CN220963408U CN202322514388.4U CN202322514388U CN220963408U CN 220963408 U CN220963408 U CN 220963408U CN 202322514388 U CN202322514388 U CN 202322514388U CN 220963408 U CN220963408 U CN 220963408U
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- CN
- China
- Prior art keywords
- gas
- fuel cell
- gas distributor
- hole
- holes
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Links
- 239000000446 fuel Substances 0.000 title claims abstract description 70
- 238000001914 filtration Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 99
- 210000004027 cell Anatomy 0.000 description 52
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 20
- 239000001257 hydrogen Substances 0.000 description 15
- 229910052739 hydrogen Inorganic materials 0.000 description 15
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model belongs to the technical field of fuel cell design and manufacture, and in particular relates to an integrated gas distributor for a fuel cell, which comprises the following components: the utility model relates to a fuel cell end plate and two gas distributor bodies communicated with a gas inlet channel and a gas outlet channel on the fuel cell end plate, wherein each gas distributor body is provided with a gas inlet end hole and a plurality of gas outlet end holes communicated with the gas inlet end holes, and the plurality of gas outlet end holes are respectively communicated with the corresponding gas inlet channel or the gas outlet channel.
Description
Technical Field
The utility model belongs to the technical field of fuel cell design and manufacture, and particularly relates to an integrated gas distributor for a fuel cell.
Background
Fuel cells are electrochemical conversion devices that convert chemical energy in fuel into direct current. The fuel cell system includes a hydrogen gas supply system, an air supply system, a temperature regulation system, an electric control system, and the like in addition to the fuel cell stack. The hydrogen in the hydrogen supply system enters the hydrogen inlet of the fuel cell from the gas storage device through a bottleneck valve, an electromagnetic valve, a pressure reducing valve, a pressure regulating valve and the like, then enters the hydrogen common channel of the electric pile, and then enters the anode flow channel through the gas inlet of each single cell anode plate so as to supply the needed hydrogen for the single cell of the fuel cell. The fuel cell stack hydrogen gas inlet has various cross sections, including a circular cross section, a rectangular cross section, a special-shaped cross section and the like, wherein one of the most common cross sections is the air inlet with the circular cross section, because the connection is more convenient, a standard pipe joint can be selected to realize the connection with the air inlet, and according to design calculation requirements, a single air inlet exists, and a plurality of channels are also used for air inlet, wherein the multi-channel air inlet also means that a plurality of hydrogen gas inlets need to be arranged on a fuel cell stack end plate, so that a plurality of common channels enter a hydrogen gas supply system from a pressure regulating valve, and the air inlets are arranged side by side, the pipelines and the pipe joints are more, the whole system is more messy, corresponding accessories are more, and the sealing difficulty of the fuel cell can be increased. At present, a distributor for distributing hydraulic fluid is available, which can realize single-inlet and multiple-outlet, then is matched with a fuel cell end plate, and distributes hydrogen to a hydrogen supply public channel through a sealing structure, but the problem of difficult sealing still exists.
Disclosure of utility model
The present utility model is directed to an integrated gas distributor for fuel cells, which solves the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an integrated gas dispenser for a fuel cell, comprising: the fuel cell end plate and with two gas distributor bodies that inlet channel and outlet channel are linked together on the fuel cell end plate, every gas distributor body is last all to be equipped with an inlet end hole and to be linked together with inlet end hole a plurality of outlet end holes, and a plurality of outlet end holes are linked together with corresponding inlet channel or outlet channel respectively.
Preferably, at least one air vent is penetrated at both ends of the fuel cell end plate, and the air inlet channel or the air outlet channel are respectively formed in the air vents at the same side.
Preferably, a hollow sealing ring is filled between each air outlet end hole and the corresponding air guide hole.
Preferably, the gas distributor body is provided with a gas distribution hole for distributing gas, one end of each of the gas outlet end holes and one gas inlet end hole extends into the gas distribution hole, and a filtering mechanism for filtering the gas is arranged in the gas distribution hole.
Preferably, the filtering mechanism comprises a filtering cotton column and a plugging piece which are sequentially arranged in the air distribution hole, and the plugging piece is detachably arranged at the end part of the air distribution hole.
Preferably, one end of the plugging piece is a rotating part, one end of the plugging piece is a threaded part, an internal thread is arranged at the end part of the air distribution hole, and one end of the threaded part is screwed into the internal thread.
Preferably, the gas distributor body is further provided with a plurality of fastening bolts, and both ends of the fuel cell end plate are provided with a plurality of threaded holes for accommodating the corresponding fastening bolts.
Preferably, a plurality of screw connecting holes are formed in the fuel cell end plate at equal distances on two symmetrical sides.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the utility model, through the additionally arranged gas distributor body and the fuel cell end plate, through the two-in-one arrangement of the gas distributor body and the fuel cell end plate, not only is the multi-channel gas distribution of single-inlet gas in a limited size range realized, but also the design of additional parts and structures of gas can be reduced to seal hydrogen between the gas distributor and the end plate.
(2) The utility model filters the gas passing through the gas distribution holes through the filter cotton column by the filter mechanism arranged in the gas distribution holes, and simultaneously, the filter cotton column is convenient to replace through the plugging piece.
Drawings
FIG. 1 is a top view of the present utility model;
FIG. 2 is a top view of a fuel cell end plate of the present utility model;
FIG. 3 is a schematic illustration of the mating of the gas distributor body and fuel cell end plates of the present utility model;
in the figure: 1. a fuel cell end plate; 2. screw connecting holes; 3. a fastening bolt; 4. a gas distributor body; 5. an air inlet end hole; 6. a blocking member; 7. a threaded hole; 8. an air guide hole; 9. an air outlet end hole; 10. a cotton filtering column; 11. a rotating part; 12. a threaded portion; 13. an internal thread; 14. an air distribution hole; 15. and (3) sealing rings.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2, the present utility model provides an integrated gas distributor for a fuel cell, comprising: the fuel cell end plate 1 and two gas distributor bodies 4 communicated with the gas inlet channel and the gas outlet channel on the fuel cell end plate 1, each gas distributor body 4 is provided with a gas inlet end hole 5 and a plurality of gas outlet end holes 9 communicated with the gas inlet end holes 5, and the gas outlet end holes 9 are respectively communicated with the corresponding gas inlet channel or gas outlet channel.
In the present utility model, as shown in fig. 2 to 3, at least one gas vent 8 is formed at both ends of the fuel cell end plate 1 of the present embodiment, and the gas inlet channel or the gas outlet channel is formed in the gas vent 8 on the same side, respectively.
In the above-mentioned manner, when the fuel cell end plate 1 and the gas distributor body 4 provided by the present utility model are used, when the gas distributor body 4 is mounted on the fuel cell body, the gas outlet end hole 9 on the gas distributor body 4 is correspondingly communicated with the gas outlet hole 8 on the fuel cell end plate 1, so that the gas distributor body 4 and the fuel cell end plate 1 are combined into one, not only the multi-channel gas distribution of the single-inlet gas inlet in a limited size range is realized, but also the additional parts and structures of the designed gas can be reduced to seal the hydrogen between the gas distributor and the end plate.
The principle adopted by the utility model is that fewer parts are adopted as much as possible to realize the same function, so that the working reliability of the parts is improved, and meanwhile, the problem of difficult sealing is avoided. If the fuel cell stack hydrogen gas supply common channel is multichannel, the anode plate needs to be provided with a plurality of air inlets, meanwhile, the end plate also needs to be provided with a plurality of air inlets, if the size of the end plate is limited, the distance between the air inlets is smaller, and the pipe joint is independently installed, so that the operation space is not enough. One consideration in meeting such problems is to design a special gas distributor, which adopts a one-in and one-out structure to solve the problem of insufficient space of the pipe joint, but because of the addition of the gas distributor, reliable connection between the gas distributor and the end plate correspondingly occurs, reliable connection between multiple outlets of the gas distributor and the corresponding number of gas inlets of the end plate is realized, and a sealing structure is designed to ensure that hydrogen cannot leak. These all will complicate the design of the fuel cell. The utility model combines the structural characteristics of the gas distributor and the hydrogen plate multi-inlet without adopting the solution, and provides a design thought combining the advantages of the gas distributor and the hydrogen plate multi-inlet, the gas distributor and the fuel cell end plate 1 are combined into one, and the single inlet can be used for simultaneously carrying out gas redistribution through the internal structure to enable the required multiple inlets of the fuel cell stack to input hydrogen into a fuel cell common channel through the consideration of the processing technology, so that the reliability of hydrogen supply is realized. While considering gas distribution from the hydrogen tank before entering the end plate multi-vent.
Further, in order to mount the gas distributor body 4 on the fuel cell end plate 1, referring to fig. 1, a plurality of fastening bolts 3 are further mounted on the gas distributor body 4, a plurality of threaded holes 7 for accommodating the corresponding fastening bolts 3 are formed at both ends of the fuel cell end plate 1, when the gas distributor body 4 is mounted on the fuel cell end plate 1, the fastening bolts 3 are located at the outer sides of the corresponding threaded holes 7, and the fastening bolts 3 are screwed, so that one ends of the fastening bolts 3 are screwed into the corresponding threaded holes 7, and the gas distributor body 4 is prevented from being separated from the fuel cell end plate 1.
Further, in order to mount the fuel cell end plate 1 on the fuel cell, as shown in fig. 2, a plurality of screw connection holes 2 are provided at equal distances on both sides of the symmetry of the fuel cell end plate 1, and screws are fastened to the fuel cell through the corresponding screw connection holes 2 when the fuel cell is placed at the mounting position on the fuel cell.
In the present utility model, as shown in fig. 3, a hollow sealing ring 15 is filled between each air outlet end hole 9 and the corresponding air guide hole 8.
As described above, in using the seal ring 15 provided by the present utility model, before the gas distributor body 4 is mounted on the fuel cell end plate 1, a plurality of seal rings 15 are sequentially placed in the corresponding gas guide holes 8, and when the gas distributor body 4 is mounted on the fuel cell end plate 1, each seal ring 15 is respectively located in the corresponding gas outlet end hole 9, and the seal rings 15 are filled in the gaps under pressure in the corresponding gas outlet end holes 9 and the gas guide holes 8, so as to avoid leakage between the gas distributor body 4 and the fuel cell end plate 1.
In the present utility model, as shown in fig. 3, a gas distribution hole 14 for gas distribution is formed in the gas distributor body 4 of the present embodiment, one end of each of the plurality of gas outlet holes 9 and one gas inlet hole 5 extends into the gas distribution hole 14, and a filtering mechanism for filtering the gas is installed in the gas distribution hole 14.
As shown in fig. 3, the filter mechanism includes a cotton filter column 10 and a blocking member 6 sequentially installed in a gas distribution hole 14, and the blocking member 6 is detachably installed at an end of the gas distribution hole 14.
As shown in fig. 3, one end of the plugging member 6 is a rotating part 11, one end of the plugging member is a threaded part 12, the end of the air distribution hole 14 is provided with an internal thread 13, and one end of the threaded part 12 is screwed into the internal thread 13.
As described above, in the use of the gas distribution hole 14 and the filtering mechanism provided by the present utility model, when the blocking member 6 is installed in the gas distribution hole 14, the gas distribution hole 14 forms a sealed gas storage space, the gas introduced into the gas distributor body 4 through the gas inlet end hole 5 is conveniently distributed in the plurality of gas outlet end holes 9 through the gas storage space, the gas is conveniently and uniformly ventilated into the fuel cell through the plurality of gas outlet end holes 9, the threaded portion 12 can be driven to rotate in the internal thread 13 in the gas distribution hole 14 through the rotating portion 11, the gas distribution hole 14 is conveniently blocked, and the gas in the gas distribution hole 14 is conveniently filtered through the filter cotton column 10.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An integrated gas distributor for a fuel cell, comprising: the fuel cell end plate (1) and two gas distributor bodies (4) communicated with the gas inlet channel and the gas outlet channel on the fuel cell end plate (1), each gas distributor body (4) is provided with a gas inlet end hole (5) and a plurality of gas outlet end holes (9) communicated with the gas inlet end holes (5), and the gas outlet end holes (9) are respectively communicated with the corresponding gas inlet channel or gas outlet channel.
2. An integrated gas distributor for a fuel cell according to claim 1, wherein: at least one air guide hole (8) is penetrated at both ends of the fuel cell end plate (1), and the air inlet channel or the air outlet channel are respectively formed in the air guide holes (8) at the same side.
3. An integrated gas distributor for a fuel cell according to claim 2, wherein: and a hollow sealing ring (15) is filled between each air outlet end hole (9) and the corresponding air guide hole (8).
4. An integrated gas distributor for a fuel cell according to claim 2, wherein: the gas distributor is characterized in that a gas distribution hole (14) for gas distribution is formed in the gas distributor body (4), one ends of a plurality of gas outlet end holes (9) and one gas inlet end hole (5) extend into the gas distribution hole (14), and a filtering mechanism for filtering gas is arranged in the gas distribution hole (14).
5. An integrated gas dispenser for fuel cells as defined in claim 4, wherein: the filtering mechanism comprises a filtering cotton column (10) and a blocking piece (6) which are sequentially arranged in the air distribution hole (14), and the blocking piece (6) is detachably arranged at the end part of the air distribution hole (14).
6. An integrated gas dispenser for fuel cells as defined in claim 5, wherein: one end of the plugging piece (6) is a rotating part (11), one end of the plugging piece is a threaded part (12), an internal thread (13) is arranged at the end part of the air distribution hole (14), and one end of the threaded part (12) is in threaded connection with the internal thread (13).
7. An integrated gas distributor for a fuel cell according to claim 1, wherein: the gas distributor is characterized in that a plurality of fastening bolts (3) are further arranged on the gas distributor body (4), and a plurality of threaded holes (7) for accommodating the corresponding fastening bolts (3) are formed in two ends of the fuel cell end plate (1).
8. An integrated gas distributor for a fuel cell according to claim 1, wherein: a plurality of screw connecting holes (2) are formed in the fuel cell end plate (1) at equal distances on two symmetrical sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322514388.4U CN220963408U (en) | 2023-09-15 | 2023-09-15 | Integrated gas distributor for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322514388.4U CN220963408U (en) | 2023-09-15 | 2023-09-15 | Integrated gas distributor for fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220963408U true CN220963408U (en) | 2024-05-14 |
Family
ID=90977900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322514388.4U Active CN220963408U (en) | 2023-09-15 | 2023-09-15 | Integrated gas distributor for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220963408U (en) |
-
2023
- 2023-09-15 CN CN202322514388.4U patent/CN220963408U/en active Active
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| GR01 | Patent grant |