CN216161775U - Equal-strength structure for fuel cell and fuel cell structure - Google Patents
Equal-strength structure for fuel cell and fuel cell structure Download PDFInfo
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- CN216161775U CN216161775U CN202121535761.9U CN202121535761U CN216161775U CN 216161775 U CN216161775 U CN 216161775U CN 202121535761 U CN202121535761 U CN 202121535761U CN 216161775 U CN216161775 U CN 216161775U
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- strength
- equal
- fuel cell
- supporting plate
- end plate
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- 239000000446 fuel Substances 0.000 title claims abstract description 57
- 230000002265 prevention Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229940104796 equistrength Drugs 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Fuel Cell (AREA)
Abstract
The utility model provides an equal-strength structure for a fuel cell and a fuel cell structure comprising the same, wherein the equal-strength structure comprises an insulating gasket and an equal-strength supporting plate; the equal-strength supporting plate is an equal-strength beam, and two side edges of the equal-strength supporting plate are arc-shaped; two ends of the equal-strength supporting plate are respectively provided with 2 through holes; the insulating gasket is fixedly bonded to the equal-strength supporting plate. The constant-strength structure provided by the utility model solves the technical problems of complex supporting structure, large volume and large mass of the existing anti-collapse waist structure.
Description
Technical Field
The utility model relates to the field of fuel cells, in particular to an equal-strength structure for a fuel cell and a fuel cell structure.
Background
The phenomenon of waist collapse often appears in the fuel cell loading use process. In order to avoid this phenomenon, the tie rod is directly used as a support member for the collapse, and as a result, the reactor core directly acts on the tie rod, and the fuel cell core is easily deformed by the impact.
Patent (CN111786000B) discloses a pressure-balanced waist-collapse-proof fuel cell structure, which can prevent the waist collapse of the cell unit through the cooperation of two supporting components, two pressure-adjusting components and two squeezing components.
Patent (CN210723242U) discloses a fuel cell structure with anti-collapse waist, wherein the cooperation of connectors and support body improves the anti-impact capability of the whole cell, and prevents the cell from collapsing waist.
The patent (CN 212380450U) discloses an integrated fuel cell stack packaging structure, which greatly improves the integration level of the fuel cell stack, and improves the vibration resistance and insulation of the fuel cell stack.
The patent (CN111786000B) has a complex structure and high requirement on structural space, and reduces the power-volume ratio of the galvanic pile; the patent (CN210723242U) is easy to cause poor heat dissipation when the fuel cell is used, and influences the use of the fuel cell; the anti-collapse waist structure of patent (CN 212380450U) is complicated, and the quality is great, seriously influences the pile power volume ratio. Therefore, an anti-collapse waist structure with good impact resistance, good insulation and light weight is lacked.
SUMMERY OF THE UTILITY MODEL
According to the technical problems that the structure of the conventional fuel cell anti-collapse waist is complex in general, the power-volume ratio of the stack is affected and the like, the utility model provides the equal-strength structure for the fuel cell and the fuel cell structure.
The technical means adopted by the utility model are as follows:
an equal-strength structure for a fuel cell includes an insulating spacer and an equal-strength support plate; the equal-strength supporting plate is an equal-strength beam, and two side edges of the equal-strength supporting plate are arc-shaped; two ends of the equal-strength supporting plate are respectively provided with 2 through holes; the insulating gasket is fixedly bonded to the equal-strength supporting plate.
Further, the constant-strength supporting plate is made of stainless steel.
Further, the insulating gasket is made of rubber.
The utility model also provides a fuel cell structure, which comprises a reactor core consisting of a plurality of bipolar plates, a membrane electrode and a current collecting plate, and a blind end plate and a gas port end plate which are arranged at the two ends of the reactor core, wherein the constant-strength structure for the fuel cell is adopted, and the fuel cell structure also comprises a plurality of pull rods and at least two constant-strength structures; the two ends of the pull rod are respectively connected to the blind end plate and the gas port end plate; the equal-strength supporting plate is connected to the blind end plate and the gas port end plate through holes at two ends by bolts respectively, and the insulating gasket faces the reactor core.
Further, 4 equal-strength structures for the fuel cell are included.
Further, 6 equal-strength structures for the fuel cell are included.
Compared with the prior art, the utility model has the following advantages:
the constant-strength structure for the fuel cell and the fuel cell structure provided by the utility model are designed by the constant-strength theory, and have the characteristics of simple structure and smaller mass; can realize good waist collapse resistance and impact resistance and has good insulating property.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an equal-strength structure for a fuel cell according to the present invention.
Fig. 2 is a schematic view of the structure of the fuel cell according to example 1.
Fig. 3 is a schematic view of the structure of the fuel cell according to example 2.
Fig. 4 is a schematic view of the structure of the fuel cell according to embodiment 3.
In the figure: 1. an equal-strength supporting plate; 2. an insulating spacer; 3. a blind end plate; 4. a core; 5. a gas port end plate; 6. a pull rod; 7. and (4) bolts.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
Example 1
As shown in fig. 1, the present invention provides an equal strength structure for a fuel cell, including an insulating spacer 2 and an equal strength support plate 1; the equal-strength supporting plate 1 is an equal-strength beam, and two side edges of the equal-strength supporting plate 1 are arc-shaped; 2 through holes are respectively formed in two ends of the equal-strength supporting plate 1; the insulating gasket 2 is fixedly bonded to the equal-strength supporting plate 1.
The equal-strength beam can reduce the use of beam materials to the maximum extent, and indirectly reduces the overall quality of the galvanic pile. If the maximum normal stress on each cross section of the beam is equal and the allowable stress of the material is reached, the beam is called as an equal-strength beam, namely the maximum normal stress on each cross section is equal to the allowable stress. The constant strength beam is generally a variable cross-section beam, and the cross-section variation law is w (x) ═ m (x)/[ σ ], where w (x) is the flexural section modulus at a distance x from the beam end, m (x) is the bending moment at the distance x, and [ σ ] is the allowable positive stress. For the convenience of manufacture, the theoretical equal-strength beam is replaced by a straight-line or step-shaped variable-section beam. The beam with equal strength has the following maximum characteristics: the material is saved, and the utilization rate of the material is improved to the maximum extent; the bearing capacity of the structure is improved, so that the structure is safer; the space is saved, the dead weight is reduced, and the usability of the structure is improved.
Further, what this application equal strength backup pad 1 adopted is the equal strength roof beam that has rectangle variable cross section and arc side, except having the advantage that equal strength roof beam has, has compromise the rationality of structure simultaneously.
Further, the constant-strength supporting plate 1 is made of stainless steel, and 304 stainless steel or 316 stainless steel can be selected.
Further, the insulating gasket 2 is made of rubber with low water absorption, good temperature resistance, long service life and good elasticity, and can be adhered and fixed on the inner side of the equal-strength supporting plate 1 through glue.
Preferably, the insulating gasket 2 is made of silicon rubber.
As shown in fig. 2, the present invention further provides a fuel cell structure, which comprises a core 4 composed of a plurality of bipolar plates, membrane electrodes and current collecting plates, and a blind end plate 3 and a gas port end plate 5 installed at two ends of the core 4, wherein the fuel cell structure with equal strength is adopted, and further comprises a plurality of tie rods 6 and at least two structures with equal strength; the two ends of the pull rod 6 are respectively connected to the blind end plate 3 and the gas port end plate 5, and the blind end plate 3, the reactor core 4 and the gas port end plate 5 can be pressed together through the pull rod 6; the equal-strength supporting plate 1 is connected to the blind end plate 3 and the gas port end plate 5 through holes at two ends by bolts 7, and the insulating gasket 2 faces the reactor core 4.
By adopting the equal-strength structure, the fuel cell has the characteristics of waist collapse prevention and impact resistance in the gravity direction.
Further, the equal-strength structures adopted by the fuel cell structure are not less than 2, a plurality of structures can be used simultaneously when the structure of the fuel cell stack allows, and the anti-collapse and impact-resistant characteristics of the fuel cell stack in all directions can be improved.
Example 2
As shown in fig. 3, the fuel cell structure according to the present embodiment is different from embodiment 1 in that 4 equal-strength structures for the fuel cells are provided on four side surfaces of the core 4, respectively, so that the fuel cells can have the waist collapse prevention characteristic in the gravity direction and the impact resistance characteristic in each direction.
Example 3
As shown in fig. 4, the fuel cell structure provided in this embodiment is different from that of embodiment 1 in that it includes 6 equal-strength structures for the fuel cells, 2 equal-strength structures for the fuel cells are provided on two wide side surfaces of the core 4, and 1 equal-strength structure for the fuel cells is provided on two narrow side surfaces, so that the fuel cells can have a waist collapse prevention characteristic in the gravity direction and an impact resistance characteristic in each direction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. An equal-strength structure for a fuel cell is characterized by comprising an insulating gasket and an equal-strength supporting plate; the equal-strength supporting plate is an equal-strength beam, and two side edges of the equal-strength supporting plate are arc-shaped; two ends of the equal-strength supporting plate are respectively provided with 2 through holes; the insulating gasket is fixedly bonded to the equal-strength supporting plate.
2. The constant strength structure for a fuel cell according to claim 1, wherein the constant strength support plate is made of stainless steel.
3. The constant strength structure for a fuel cell according to claim 1, wherein the insulating spacer is made of rubber.
4. A fuel cell structure, including the core composed of several bipolar plates, membrane electrode and current collecting plate and blind end plate and gas port end plate installed on both ends of the said core, have adopted the said fuel cell of claim 1 to use the structure of the uniform strength, characterized by that, also include several tie rods and at least two said structures of the uniform strength; the two ends of the pull rod are respectively connected to the blind end plate and the gas port end plate; the equal-strength supporting plate is connected to the blind end plate and the gas port end plate through holes at two ends by bolts respectively, and the insulating gasket faces the reactor core.
5. The fuel cell structure according to claim 4, characterized by comprising 4 said fuel cell equi-strength structures: in the transverse direction, the equal-strength structure used by the narrow side of the galvanic pile plays the functions of transverse waist collapse prevention and impact prevention.
6. The fuel cell structure according to claim 4, characterized by comprising 6 said fuel cell equal-strength structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121535761.9U CN216161775U (en) | 2021-07-07 | 2021-07-07 | Equal-strength structure for fuel cell and fuel cell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121535761.9U CN216161775U (en) | 2021-07-07 | 2021-07-07 | Equal-strength structure for fuel cell and fuel cell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216161775U true CN216161775U (en) | 2022-04-01 |
Family
ID=80836070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121535761.9U Active CN216161775U (en) | 2021-07-07 | 2021-07-07 | Equal-strength structure for fuel cell and fuel cell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216161775U (en) |
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2021
- 2021-07-07 CN CN202121535761.9U patent/CN216161775U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An equal strength structure and fuel cell structure for fuel cells Effective date of registration: 20231026 Granted publication date: 20220401 Pledgee: Industrial Bank Limited by Share Ltd. Dalian branch Pledgor: Sunrise Power Co.,Ltd. Registration number: Y2023980062978 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |