CN211265631U - Electric pile end plate and electric pile structure - Google Patents
Electric pile end plate and electric pile structure Download PDFInfo
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- CN211265631U CN211265631U CN201921976588.9U CN201921976588U CN211265631U CN 211265631 U CN211265631 U CN 211265631U CN 201921976588 U CN201921976588 U CN 201921976588U CN 211265631 U CN211265631 U CN 211265631U
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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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Abstract
The utility model discloses a galvanic pile end plate and a galvanic pile structure, belonging to the technical field of fuel cells, wherein the galvanic pile end plate comprises an end plate body; the end plate is provided with a plurality of medium through holes and a plurality of mounting holes, the medium through holes are used for transmitting media, and the mounting holes are used for allowing connecting pieces to pass through; the end plate body is provided with a first surface and a second surface which are opposite, the first surface is provided with a plurality of first grooves, a part between the two first grooves forms a reinforcing structure, the second surface is provided with a plurality of second grooves, and the second grooves are filled with sealing structures. The utility model discloses a set up a plurality of recesses on the first surface of end plate body and second surface, improved the bending resistance of end plate body to improve the intensity and the bending resistance of pile end plate, improved the leakproofness of cavity in the pile structure that uses this pile end plate.
Description
Technical Field
The utility model relates to a fuel cell technical field especially relates to a galvanic pile end plate and galvanic pile structure.
Background
The end plates of the electric pile in the fuel cell are positioned at two ends of the whole structure of the electric pile and are used for protecting other components (such as electrode plates) in the whole structure of the electric pile and uniformly distributing pretightening force on the other components.
The end plate in the prior art is flat, a plurality of mounting holes are formed in the end plate, and the mounting holes are used for allowing connecting pieces to penetrate through so that the end plate is connected with other components in the whole pile structure to form a closed cavity. And the end plate is also provided with a medium through hole, and a medium can be input to other components in the whole structure of the electric pile through the medium through hole.
However, in the whole structure of the galvanic pile, the pressure in the sealed chamber changes and acts on the end plate, so that the end plate is easy to bend and deform, the normal use of the end plate is affected, and the sealing performance of the sealed chamber is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a galvanic pile end plate through set up a plurality of recesses on the first surface and the second surface at the end plate body, has improved the bending resistance of end plate body to improve the intensity and the bending resistance of galvanic pile end plate, improved the leakproofness of cavity in the galvanic pile structure of using this galvanic pile end plate.
As the conception, the utility model adopts the technical proposal that:
a stack end plate includes an end plate body;
the end plate body is provided with a plurality of medium through holes and a plurality of mounting holes, the medium through holes are used for transmitting media, and the mounting holes are used for connecting pieces to pass through;
the end plate body is provided with a first surface and a second surface which are opposite, the first surface is provided with a plurality of first grooves, a part between the two first grooves forms a reinforcing structure, the second surface is provided with a plurality of second grooves, and sealing structures are filled in the second grooves.
Preferably, the end plate body is provided with a plurality of air holes penetrating through the first groove and the second groove.
Preferably, the thickness of the end plate body is 5-9 times of the depth of the first groove, and the thickness of the end plate body is 7-12 times of the depth of the second groove.
Preferably, a plurality of the second grooves are arrayed on the second surface.
Preferably, the end plate body has two opposite ends along the length direction thereof, the plurality of medium through holes are arranged near the two ends, the plurality of first grooves include a plurality of first concave structures located on one side of the medium through holes away from the ends, the first concave structures are in a long strip shape, and the extending direction of the first concave structures is perpendicular to the length direction of the end plate body.
Preferably, the plurality of first grooves further include a plurality of second recessed structures located on a side of the first recessed structures away from the dielectric through holes, and the second recessed structures are triangular.
Preferably, the plurality of first grooves further include a third recessed structure located between the first recessed structure and the second recessed structure, and the third recessed structure is trapezoidal.
Preferably, a part of the third concave structures is provided with air holes penetrating through the third concave structures and the second grooves.
Preferably, the side surface of the end plate body includes a plurality of arc-shaped surfaces in a concave shape.
A pile structure comprises the pile end plate.
The beneficial effects of the utility model include at least:
the utility model provides a pile end plate, all have a plurality of recesses on the first surface of end plate body and the second surface, and the part between the adjacent first recess forms additional strengthening, also can form additional strengthening between the adjacent second recess, a plurality of additional strengthening are equivalent to a plurality of strengthening ribs on the end plate body, and then increased the intensity of end plate body, the bending resistance of end plate body has been improved, thereby the intensity and the bending resistance of pile end plate have been improved, the normal use of pile end plate has been guaranteed, the leakproofness of cavity in the pile structure of using this pile end plate has been improved.
Drawings
Fig. 1 is a first schematic structural diagram of a stack end plate according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram ii of a stack end plate according to a first embodiment of the present invention;
fig. 3 is a front view of a stack end plate according to an embodiment of the present invention;
fig. 4 is a cross-sectional view a-a of fig. 3 according to the present invention;
fig. 5 is a cross-sectional view B-B of fig. 3 according to the present invention;
fig. 6 is a cross-sectional view of the present invention taken along line C-C of fig. 3;
fig. 7 is a rear view of a stack end plate according to an embodiment of the present invention;
fig. 8 is a cross-sectional view taken along line D-D of fig. 7 in accordance with the present invention.
In the figure:
10. an end plate body; 11. a media aperture; 12. mounting holes; 13. a first groove; 131. a first recess structure; 132. a second recessed structure; 133. a third recessed structure; 134. a fourth recessed structure; 135. a fifth recessed structure; 14. a second groove; 15. air holes are formed; 16. a reinforcing structure; 17. an arc-shaped surface; 18. and (7) assembling holes.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The embodiment provides a galvanic pile end plate, can have stronger bending resistance for the electroplating structure that has this galvanic pile end plate can have better leakproofness.
Referring to fig. 1 to 8, the stack end plate includes an end plate body 10. The end plate body 10 is provided with a plurality of medium through holes 11 and a plurality of mounting holes 12, wherein the medium through holes 11 are used for transmitting media, and the mounting holes 12 are used for connecting pieces to pass through.
The end plate body 10 has a first surface and a second surface opposite to the first surface, the first surface has a plurality of first grooves 13, a reinforcing structure 16 is formed at a portion between the two first grooves 13, the second surface has a plurality of second grooves 14, and the second grooves 14 are filled with a sealing structure.
The pile end plate that this embodiment provided, all have a plurality of recesses on the first surface and the second surface of end plate body 10, and the part between the adjacent first recess 13 forms additional strengthening 16, additional strengthening 16 can be formed between the adjacent second recess 13, a plurality of additional strengthening 16 are equivalent to a plurality of strengthening ribs on end plate body 10, and then the intensity of end plate body 10 has been increased, the bending resistance of end plate body 10 has been improved, thereby the intensity and the bending resistance of pile end plate have been improved, the normal use of pile end plate has been guaranteed, the leakproofness of cavity in the pile structure of using this pile end plate has been improved.
In this embodiment, the end plate body 10 has a plurality of ventilation holes 15 penetrating through the bottom of the first groove 13 and the bottom of the second groove 14. When the end plate body 10 has a plurality of first grooves 13, the bottoms of some of the first grooves 13 are provided with ventilation holes 15. The temperature in the cavity of the galvanic pile structure at which the galvanic pile end plate is arranged can be balanced with the temperature in the environment by the arrangement of the air holes 15, the pressure in the cavity of the galvanic pile structure at which the galvanic pile end plate is arranged can be balanced with the pressure in the environment, the pressure of gas in the cavity to the galvanic pile end plate is reduced, the pressure of the galvanic pile end plate can be reduced, the pressure of the galvanic pile end plate is reduced, the probability of bending of the galvanic pile end plate is reduced, and the normal use of the galvanic pile end plate is ensured.
In this embodiment, the plurality of first grooves 13 on the first surface of the end plate body 10 are symmetrically disposed on the first surface, and the symmetry axis is parallel to the width direction of the end plate body 10. The stress distribution of the end plate body 10 is uniform, and the probability of deformation of the end plate of the pile is further reduced.
Further, the end plate body 10 has two opposite end portions along the length direction thereof, and the plurality of medium through holes 11 are disposed near the two end portions, that is, the plurality of medium through holes 11 are distributed at both ends of the end plate body 10, optionally, the plurality of medium through holes 11 may be uniformly distributed at both ends of the end plate body 10, that is, the number of the medium through holes 11 at one end of the end plate body 10 is the same as the number of the medium through holes 11 at the other end of the end plate body 10. Moreover, the plurality of first grooves 13 include a plurality of first concave structures 131 located on one side of the medium through hole 11 away from the end portion, the plurality of first concave structures 131 are symmetrically disposed at two ends of the end plate body 10 with respect to the above-mentioned symmetry axis, the plurality of first concave structures 131 are all in a long shape, and the extending directions of the plurality of first concave structures 131 are all perpendicular to the length direction of the end plate body 10.
Alternatively, the plurality of first recess structures 131 at one end of the end plate body 10 may be divided into a plurality of groups of first structures, and the plurality of groups of first structures are sequentially arranged along the width direction of the end plate body 10, and the plurality of mounting holes 12 are located between the plurality of groups of first structures or at edge positions. The embodiment provides a case that the plurality of first concave structures 131 are divided into three groups of first structures, each group of first structures includes two first concave structures 131, and the three groups of first structures and the edge position are provided with 4 mounting holes 12.
Further, as shown in fig. 3, the plurality of first grooves 13 further include a plurality of second recessed structures 132 located on a side of the first recessed structure 131 away from the medium through hole 11, each of the plurality of second recessed structures 132 is in a triangular shape, and the plurality of second recessed structures 132 are symmetrically disposed on the end plate body 10 with respect to the above-mentioned symmetry axis. The plurality of second recess structures 132 located at one side of the symmetry axis may be divided into a plurality of groups of second structures, which are sequentially arranged along the width direction of the end plate body 10. The angle of greatest angle in each second recessed feature 132 of the plurality of second recessed features 132 in each set of second features is toward a center position of the set of second features. The central position of the second structure may be a centroid of a figure enclosed by outer contours of the second structure. For example, the present embodiment provides a case that the plurality of second concave structures 132 located at one side of the symmetry axis are divided into two groups of second structures, each group of second structures includes four second concave structures 132, and the larger angle of the four second concave structures 132 faces the center of the second structure.
Still further, the plurality of first grooves 13 further include a third concave structure 133 between the first concave structure 131 and the second concave structure 132, and the third concave structure 133 has a trapezoid shape. The plurality of third recess structures 133 are provided on the end plate body 10 symmetrically with respect to the above-described symmetry axis. The plurality of third recess structures 133 located at one side of the symmetry axis may be divided into a plurality of groups of third structures, which are sequentially arranged in the width direction of the end plate body 10. The upper base of the trapezoid formed by the plurality of third concave structures 133 in each group of third structures faces to the central position of the third structures. The central position of the third structure may be a centroid of a figure enclosed by outer contours of the third structure. Illustratively, the present embodiment provides a case where the plurality of third recess structures 133 located on one side of the symmetry axis are divided into two groups of third structures, each group of third structures including four third recess structures 133.
Optionally, as shown in fig. 3, a portion of the third concave structures 133 has ventilation holes 15 penetrating through the third concave structures 133 and the second grooves 14.
As shown in fig. 3, a plurality of fourth concave structures 134 are further disposed between the first concave structure 131 and the third concave structure 133 on one side of the symmetry axis, and the shape of the fourth concave structures 134 may be square, sector, semicircle, triangle, trapezoid, or the like, which is not limited in this embodiment.
In addition, in the width direction of the end plate body 10, fifth recessed structures 135 are further disposed on two sides of the second recessed structure 132 and the third recessed structure 133, and the shape of the fifth recessed structures 135 may be square, sector, semicircle, triangle, trapezoid, or the like, which is not limited in this embodiment.
In this embodiment, the thickness of end plate body 10 is 5 ~ 9 times of the first recess 13 degree of depth, and the thickness of end plate body 10 is 7 ~ 12 times of the second recess 14 degree of depth to make the setting of first recess 13 and second recess 14 can be less to the rigidity influence of end plate body 10, and then guarantee the normal use of end plate body 10.
Alternatively, as shown in fig. 7, a plurality of second grooves 14 are arrayed on the second surface. Fig. 7 is a schematic view of 6 second grooves 14 disposed on the second surface, and the 6 second grooves 14 are all rectangular in shape. In addition, in the width direction of the end plate body 10, the second grooves 14 near the two sides of the end plate body 10 are respectively provided with an air hole 15, and the second grooves 14 in the middle of the end plate body 10 are respectively provided with two air holes 15.
In the present embodiment, the side surface of the end plate body 10 includes a plurality of arc-shaped surfaces 17 in a concave shape. The arc-shaped surface 17 may be disposed avoiding the fitting hole 18. The weight of the end plate body 10 can be reduced by the arrangement of the arc-shaped face 17, and the light weight of the pile end plate is further ensured.
Example two
This embodiment is a stack structure, and this stack structure includes the stack end plate in the above-mentioned embodiment one.
Further, the stack structure may include two stack end plates located at both ends of the stack structure for protecting other components within the stack structure.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A stack end plate, characterized by comprising an end plate body (10);
the end plate body (10) is provided with a plurality of medium through holes (11) and a plurality of mounting holes (12), the medium through holes (11) are used for transmitting media, and the mounting holes (12) are used for connecting pieces to pass through;
the end plate body (10) is provided with a first surface and a second surface which are opposite, the first surface is provided with a plurality of first grooves (13), a part between the two first grooves (13) forms a reinforcing structure, the second surface is provided with a plurality of second grooves (14), and the second grooves (14) are filled with sealing structures.
2. The stack end plate according to claim 1, wherein the end plate body (10) has a plurality of ventilation holes (15) formed therethrough the first groove (13) and the second groove (14).
3. The stack end plate according to claim 1 or 2, characterized in that the thickness of the end plate body (10) is 5-9 times the depth of the first groove (13) and the thickness of the end plate body (10) is 7-12 times the depth of the second groove (14).
4. The stack end plate according to claim 1 or 2, wherein a plurality of the second grooves (14) are arrayed on the second surface.
5. The stack end plate according to claim 1 or 2, wherein the end plate body (10) has two opposite ends along a length direction thereof, the plurality of medium through holes (11) are disposed near the two ends, the plurality of first grooves (13) include a plurality of first concave structures (131) on a side of the medium through holes (11) away from the ends, the first concave structures (131) are elongated, and an extending direction of the first concave structures (131) is perpendicular to the length direction of the end plate body (10).
6. The stack end plate according to claim 5, wherein the plurality of first grooves (13) further comprises a plurality of second recessed structures (132) located on a side of the first recessed structures (131) away from the dielectric via (11), the second recessed structures (132) having a triangular shape.
7. The stack end plate according to claim 6, wherein the plurality of first grooves (13) further comprises a third recessed structure (133) located between the first recessed structure (131) and the second recessed structure (132), the third recessed structure (133) having a trapezoidal shape.
8. The stack end plate according to claim 7, wherein a portion of the third recessed structure (133) has a vent hole (15) formed therethrough the third recessed structure (133) and the second groove (14).
9. The stack end plate according to claim 1 or 2, characterized in that the side surface of the end plate body (10) comprises a plurality of arc-shaped faces in a concave shape.
10. A stack structure comprising the stack end plate of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921976588.9U CN211265631U (en) | 2019-11-15 | 2019-11-15 | Electric pile end plate and electric pile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921976588.9U CN211265631U (en) | 2019-11-15 | 2019-11-15 | Electric pile end plate and electric pile structure |
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| Publication Number | Publication Date |
|---|---|
| CN211265631U true CN211265631U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921976588.9U Active CN211265631U (en) | 2019-11-15 | 2019-11-15 | Electric pile end plate and electric pile structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331880A (en) * | 2020-12-31 | 2021-02-05 | 武汉中极氢能产业创新中心有限公司 | Dead end plate of fuel cell and fuel cell |
| CN115663255A (en) * | 2022-12-26 | 2023-01-31 | 天津中科先进技术产业有限公司 | High-strength lightweight stack end plate and fuel cell stack |
-
2019
- 2019-11-15 CN CN201921976588.9U patent/CN211265631U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112331880A (en) * | 2020-12-31 | 2021-02-05 | 武汉中极氢能产业创新中心有限公司 | Dead end plate of fuel cell and fuel cell |
| CN115663255A (en) * | 2022-12-26 | 2023-01-31 | 天津中科先进技术产业有限公司 | High-strength lightweight stack end plate and fuel cell stack |
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