CN217468498U - Novel hydrogen energy fuel cell sealing structure - Google Patents
Novel hydrogen energy fuel cell sealing structure Download PDFInfo
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- CN217468498U CN217468498U CN202221182522.4U CN202221182522U CN217468498U CN 217468498 U CN217468498 U CN 217468498U CN 202221182522 U CN202221182522 U CN 202221182522U CN 217468498 U CN217468498 U CN 217468498U
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Abstract
The utility model provides a novel hydrogen energy fuel cell sealing structure, which comprises a first sealing element, a second sealing element, a third sealing element and a fourth sealing element; the first sealing element is V-shaped, the second sealing element is X-shaped, the third sealing element is rectangular with round corners at the periphery, and the fourth sealing element is circular; bosses are arranged on one sides of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element, and grooves are arranged on the other sides of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element; the sealing ring with a special shape is adopted to replace the original O-shaped sealing ring, and then the risk of extrusion and corrosion of the sealing ring can be effectively reduced through the arranged lug boss and the groove.
Description
Technical Field
The utility model relates to a battery seal field, concretely relates to novel hydrogen energy fuel cell seal structure.
Background
The hydrogen fuel cell is a power generation device which directly converts chemical energy of hydrogen and oxygen into electric energy, and is widely applied to industries of automobiles, aerospace, aviation and the like due to the characteristics of no pollution, no noise, high efficiency and the like.
The inventor of the utility model finds that, among the existing hydrogen fuel cells, what seal structure between galvanic pile and manifold generally adopted is "O" type sealing washer, bonds "O" type sealing washer between galvanic pile and manifold through joint strip, adopts the mode of cold viscidity to accomplish seal structure's installation and use. However, in actual use, the manifold is matched with a plurality of galvanic piles, and due to the fact that distances between the spliced galvanic piles and the manifold are inconsistent, if the O-shaped sealing ring with uniform thickness is adopted, the sealing performance of a certain side is possibly reduced, and the leakage situation is caused. And after the O-shaped sealing ring is axially extruded, the volume of the O-shaped sealing ring can expand in the radial direction, so that the O-shaped sealing ring is extruded into a water cavity groove on a pile, and the O-shaped sealing ring is subjected to extrusion and corrosion failure. Therefore, it is necessary to develop a new sealing structure of a hydrogen fuel cell.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned problem, provide a novel hydrogen energy fuel cell seal structure, replace original "O" type sealing washer through the sealing washer that adopts special shape, the boss and the recess that the rethread was seted up can be effectual the reduction sealing washer extrude the risk of undercutting.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A novel hydrogen energy fuel cell sealing structure comprises a first sealing element, a second sealing element, a third sealing element and a fourth sealing element; the first sealing element is V-shaped, the second sealing element is X-shaped, the third sealing element is rectangular with round corners at the periphery, and the fourth sealing element is circular; bosses are arranged on one sides of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element, and grooves are arranged on the other sides of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element.
Further, one side of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element is provided with a first boss, the other side of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element is provided with a second boss, and the first boss and the second boss are oppositely arranged.
Further, the first boss is provided with a circular arc chamfer.
Further, the second boss is provided with a circular arc chamfer.
Further, the first boss and the second boss are uniform in thickness.
Further, one side of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element is provided with a first groove, the other side of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element is provided with a second groove, and the first groove and the second groove are oppositely arranged.
Further, one side of the first groove, which is close to the first sealing element, is arc-shaped.
Further, one side of the second groove close to the first sealing element is arc-shaped.
Further, the first groove and the second groove have the same depth.
Further, the width of the two wings of the first sealing element is different.
The utility model relates to a novel hydrogen energy fuel cell seal structure's positive effect is:
(1) the utility model discloses a change original "O" type sealing washer into the sealing washer of special shape, the sealing washer that adopts special shape can satisfy great compression volume change, can use same cross-section to accomplish different height differences's sealed simultaneously in the upper and lower tube sheet that has the difference in height, and the design of the two lip formulas that produces owing to set up the recess has increased the sealed contact surface of multiple spot simultaneously, has strengthened sealing performance.
(2) The sealing section of the sealing ring with the special shape is different from the section of an O-shaped sealing ring, the sealing ring is not easy to distort and overturn during installation, and the bottom of the sealing ring with the special shape is a double-point support, so that the sealing ring has a good bottom support, and when the sealing ring receives overturning force from the outside, the overturning force can be counteracted through one-side extrusion deformation.
(3) The anti-extrusion bosses are additionally arranged on two sides of the sealing ring in a special shape, the bosses can prevent the lip from expanding towards two sides when the sealing element is extruded, and then the lip is extruded into the gap of the water cavity groove on the galvanic pile, and meanwhile, the volume rate of the cross section of a product is reduced by the design of the bosses, and the risk of extrusion and corrosion is further reduced.
Drawings
Fig. 1 is a schematic view of a first sealing member according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a second sealing member according to an embodiment of the present invention.
Fig. 3 is a schematic view of a third sealing member provided by an embodiment of the present invention.
Fig. 4 is a schematic view of a fourth sealing member provided by the embodiment of the present invention.
Fig. 5 is a schematic cross-sectional view of a first seal, a second seal, a third seal, and a fourth seal provided by an embodiment of the present invention.
The reference numerals in the figures are respectively:
1. a first seal member; 2. a second seal member; 3. a third seal member; 4. a fourth seal member; 5. a first boss; 6. a second boss; 7. a first groove; 8. a second groove.
Detailed Description
The following provides a specific embodiment of the novel sealing structure for hydrogen energy fuel cells according to the present invention with reference to the accompanying drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All adopt the utility model discloses a similar structure and similar change all should go into the utility model discloses a protection scope. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, the directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
See fig. 1, 2, 3, 4, 5. A novel hydrogen energy fuel cell sealing structure comprises a first sealing element 1, a second sealing element 2, a third sealing element 3 and a fourth sealing element 4; the first sealing element 1 is V-shaped, the second sealing element 2 is X-shaped, the third sealing element 3 is rectangular with round corners at the periphery, and the fourth sealing element 4 is circular; bosses are arranged on one sides of the first sealing element 1, the second sealing element 2, the third sealing element 3 and the fourth sealing element 4, and grooves are arranged on the other sides of the first sealing element 1, the second sealing element 2, the third sealing element 3 and the fourth sealing element 4.
As shown in fig. 1, the widths of the two wings of the first sealing member 1 are different, the length of the first sealing member 1 is 150 mm and 200 mm, and in this embodiment, the length of the first sealing member 1 is 180 mm. The width of the first sealing member 1 is 100-150 mm, and in this embodiment, the width of the first sealing member 1 is 130 mm. The width above the right side of the first seal member 1 is 30-40 mm, and in this embodiment, the width above the right side of the first seal member 1 is 32 mm. The width above the left side of the first seal member 1 is 15-25 mm, in this embodiment the width above the left side of the first seal member 1 is 18.5 mm. The width of the left side straight edge of the first sealing element 1 is larger than that of the right side straight edge of the first sealing element 1, the width of the left side straight edge of the first sealing element 1 is 70-80 mm, and in the embodiment, the width of the left side straight edge of the first sealing element 1 is 73 mm; the width of the right side straight edge of the first sealing member 1 is 60-70 mm, in this embodiment, the width of the right side straight edge of the first sealing member 1 is 63 mm. The folding angles of the first sealing element 1 are arc-shaped, and the arc radius of the arc-shaped folding angles of the first sealing element 1 is 5-15 mm. The first sealing element 1 is used for sealing at a water inlet on a galvanic pile, the medium sealed by the first sealing element 1 is antifreeze solution, the operating pressure is 80KPA, and the limit pressure is-90 to 280 KPA.
As shown in FIG. 2, the length of the second sealing member 2 is 150 mm and 200 mm, and in this embodiment, the length of the second sealing member 2 is 166 mm. The width of the second sealing element 2 is 50-100 mm, in this embodiment, the width of the second sealing element 2 is 79 mm. The folding angles of the second sealing element 2 are arc-shaped, and the arc radius of the arc-shaped folding angles of the second sealing element 2 is 3-12 mm. The second seal 2 is used for sealing the water outlet on the stack. The medium sealed by the second sealing element 2 is antifreeze solution, the operating pressure is 80KPA, and the limit pressure is-90 to 280 KPA.
As shown in fig. 3, the length of the third seal 3 is 30-60 mm, and in this embodiment, the length of the third seal 3 is 42 mm. The width of the third seal 3 is 20-40 mm, in this embodiment the width of the third seal 3 is 36 mm. The folding angles of the third sealing element 3 are arc-shaped, and the arc-shaped arc radius of the folding angles of the second sealing element 2 is 5-18 mm. The third seal 3 is used for sealing the hydrogen outlet on the stack. The medium sealed by the third sealing element 3 is hydrogen, and the operating pressure is 160-170 KPA.
As shown in fig. 4, the outer ring diameter of the fourth sealing element 4 is 30-60 mm, and in this embodiment, the outer ring diameter of the fourth sealing ring is 42 mm. The fourth seal 4 is used for sealing the hydrogen outlet on the stack. The medium sealed by the fourth sealing element 4 is hydrogen, and the operating pressure is 160-170 KPA.
In this embodiment, the cross sections of the first sealing member 1, the second sealing member 2, the third sealing member 3 and the fourth sealing member 4 are the same, and in particular, the thicknesses of the cross sections of the first sealing member 1, the second sealing member 2, the third sealing member 3 and the fourth sealing member 4 can be finely adjusted according to specific conditions, that is, the thicknesses of the cross sections of the first sealing member 1, the second sealing member 2, the third sealing member 3 and the fourth sealing member 4 can be different. The novel hydrogen energy fuel cell generally comprises at least one galvanic pile, one galvanic pile needs to be matched with a set of first sealing element 1, a set of second sealing element 2, a set of third sealing element 3 and a set of fourth sealing element 4, namely the novel hydrogen energy fuel cell generally needs to be matched with at least one set of first sealing element 1, a set of second sealing element 2, a set of third sealing element 3 and a set of fourth sealing element 4, and meanwhile, the thickness of the sealing elements can be adjusted according to specific conditions so as to achieve a better sealing effect.
Fig. 1, 2, 3 and 4 only show the appearance of the first seal member 1, the second seal member 2, the third seal member 3 and the fourth seal member 4, and details are not shown. The faces of the first seal 1, the second seal 2, the third seal 3 and the fourth seal 4 facing the reader in the figure are provided with a first groove 7.
First sealing member 1 second sealing member 2 third sealing member 3 with one side of fourth sealing member 4 is provided with first boss 5, first sealing member 1 second sealing member 2 third sealing member 3 with the opposite side of fourth sealing member 4 is provided with second boss 6, first boss 5 with second boss 6 sets up oppositely, first boss 5 is provided with the circular arc chamfer, second boss 6 is provided with the circular arc chamfer, first boss 5 with the thickness of second boss 6 is unanimous. As shown in fig. 5, the width of the first boss 5 is 1-3 mm, in this embodiment, the width of the first boss 5 is 2 mm; the thickness of the first boss 5 is 0.3-0.8 mm, and in the present embodiment, the thickness of the first boss 5 is 0.5 mm. The radius of the arc chamfer provided by the first boss 5 is 0.5 mm. In this embodiment, the first boss 5 and the second boss 6 are completely identical, and in particular, the first boss 5 and the second boss 6 may be different in width and thickness.
First sealing member 1 second sealing member 2 third sealing member 3 and one side of fourth sealing member 4 is provided with first recess 7, first sealing member 1 second sealing member 2 third sealing member 3 with the opposite side of fourth sealing member 4 is provided with second recess 8, first recess 7 with second recess 8 sets up oppositely, first recess 7 is close to one side of first sealing member 1 is circular-arc, second recess 8 is close to one side of first sealing member 1 is circular-arc, first recess 7 with the degree of depth of second recess 8 is unanimous. As shown in fig. 5, the width of the first groove 7 is 1-3 mm, in this embodiment, the width of the first groove 7 is 2 mm; the depth of the first groove 7 is 0.5-1.5 mm, and in the present embodiment, the depth of the first groove 7 is 1 mm. The radius of the arc chamfer of which the side of the first groove 7 close to the first sealing member 1 is arc-shaped is 0.5 mm, namely the radius of the arc chamfer at the lower side of the first groove 7 is 0.5 mm in the figure. In this embodiment, the widths and depths of the first groove 7 and the second groove 8 are the same, and in particular, the widths and depths of the first groove 7 and the second groove 8 may be different. After the groove is formed in the sealing element, the shape of the sealing element is similar to that of a double lip, a large amount of high-viscosity lubricating grease can be smeared in a gap between the lips for pre-lubrication, and the second action of the high-viscosity lubricating grease can enable the sealing element to tightly adhere a sealing product and a water cavity groove on a galvanic pile when the sealing element is installed, so that the phenomenon that the sealing element falls off when the sealing element is installed can be prevented.
Claims (10)
1. A novel hydrogen energy fuel cell sealing structure is characterized by comprising a first sealing element, a second sealing element, a third sealing element and a fourth sealing element; the first sealing element is V-shaped, the second sealing element is X-shaped, the third sealing element is rectangular with round corners at the periphery, and the fourth sealing element is circular; bosses are arranged on one sides of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element, and grooves are arranged on the other sides of the first sealing element, the second sealing element, the third sealing element and the fourth sealing element.
2. The novel hydrogen energy fuel cell sealing structure according to claim 1, wherein one side of said first, second, third and fourth seals is provided with a first boss, and the other side of said first, second, third and fourth seals is provided with a second boss, said first boss being disposed opposite to said second boss.
3. The novel hydrogen energy fuel cell sealing structure according to claim 2, wherein said first boss is provided with a rounded chamfer.
4. The novel hydrogen energy fuel cell sealing structure according to claim 2, wherein said second boss is provided with a rounded chamfer.
5. The novel hydrogen energy fuel cell sealing structure according to claim 2, wherein said first boss and said second boss are of uniform thickness.
6. The novel hydrogen energy fuel cell sealing structure according to claim 1, wherein one side of said first, second, third and fourth seals is provided with a first groove, and the other side of said first, second, third and fourth seals is provided with a second groove, said first groove being opposite to said second groove.
7. The novel hydrogen energy fuel cell sealing structure according to claim 6, wherein a side of said first groove close to said first sealing member is arc-shaped.
8. The novel hydrogen energy fuel cell sealing structure according to claim 6, wherein a side of said second groove close to said first seal member is arc-shaped.
9. The novel hydrogen energy fuel cell sealing structure according to claim 6, wherein said first groove and said second groove have the same depth.
10. The novel hydrogen energy fuel cell sealing structure according to claim 1, wherein the width of the wings of said first sealing member is not the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221182522.4U CN217468498U (en) | 2022-05-17 | 2022-05-17 | Novel hydrogen energy fuel cell sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221182522.4U CN217468498U (en) | 2022-05-17 | 2022-05-17 | Novel hydrogen energy fuel cell sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468498U true CN217468498U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221182522.4U Active CN217468498U (en) | 2022-05-17 | 2022-05-17 | Novel hydrogen energy fuel cell sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468498U (en) |
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2022
- 2022-05-17 CN CN202221182522.4U patent/CN217468498U/en active Active
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