CN216436010U - Battery apron that sealing performance is good - Google Patents
Battery apron that sealing performance is good Download PDFInfo
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- CN216436010U CN216436010U CN202122565150.5U CN202122565150U CN216436010U CN 216436010 U CN216436010 U CN 216436010U CN 202122565150 U CN202122565150 U CN 202122565150U CN 216436010 U CN216436010 U CN 216436010U
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- utmost point
- plastic
- flange edge
- point post
- sealing
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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
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery apron that sealing performance is good aims at providing the battery apron that sealing performance is good that can ensure good gas tightness. It includes utmost point post, goes up plastic, top cap piece, lower plastic, riveting aluminium alloy and connection piece, the one end of utmost point post is located one side of plastic down, utmost point post is located the one end and the connection piece fixed connection of plastic one side down, the other end of utmost point post runs through in proper order down behind plastic, top cap piece and the last plastic and is connected with riveting aluminium alloy riveting, the cover is equipped with the sealing washer on the utmost point post, the sealing washer is located utmost point post and connection piece fixed connection's one and serves, utmost point post passes through sealing washer and top cap piece sealing contact. The beneficial effects of the utility model are that: the air leakage risk is avoided, and the purpose of ensuring good air tightness is achieved.
Description
Technical Field
The utility model belongs to the technical field of the relevant technique of battery apron and specifically relates to indicate a battery apron that sealing performance is good.
Background
The lithium battery cover plate is an important connecting and protecting component of the lithium battery, the lithium battery is a battery which uses non-aqueous electrolyte solution and takes lithium metal or lithium alloy as a positive or negative electrode material, the lithium battery cover plate can play a good external protection role for the lithium battery, and is a necessary component for connecting the lithium battery with the outside, the lithium battery cover plate is common in the new energy automobile industry, the common lithium battery cover plate is provided with a round cover plate, a square cover plate and the like, and the lithium battery cover plate is mainly used for the round cover plate.
As shown in fig. 4, in the prior art, in the main-flow circular cover plate structure of the lithium battery, the confluence disc 13 and the lower plastic 4, and the confluence disc 13 and the pole 1 are not directly attached and sealed by the sealing ring 7, and since the confluence disc 13 does not have sealing performance by ultrasonic welding, a potential risk of liquid seepage exists between the confluence disc 13 and the pole 1; the lower plastic 4 is made of PP material instead of sealing material, so that there is a potential risk of liquid leakage between the lower plastic 4 and the confluence disc 13.
In the production process of a power battery structural member in the new energy industry, the air tightness of a product is an important performance of the battery, and the existing mainstream circular cover plate structure of the lithium battery is not enough in general, so that the integral air tightness cannot be guaranteed, and certain risks exist in the use process.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome among the prior art not enough that lithium cell apron gas tightness can't be ensured, provide a can ensure the good battery apron of sealing performance of good gas tightness.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a battery cover plate that sealing performance is good, it includes utmost point post, goes up plastic, top cap piece, lower plastic, riveting aluminium pig and connection piece, the one end of utmost point post is located one side of plastic down, utmost point post is located the side fixed connection of the one end of plastic one side and connection piece down, the other end of utmost point post runs through in proper order down behind plastic, top cap piece and the last plastic with riveting aluminium pig riveting and be connected, the cover is equipped with the sealing washer on the utmost point post, the sealing washer is located one of utmost point post and connection piece fixed connection and serves, utmost point post passes through sealing washer and top cap piece sealing contact.
The one end of utmost point post is located one side of plastic down, utmost point post is located the one end of plastic one side and the side fixed connection of connection piece down, the other end of utmost point post runs through down in proper order and is connected with riveting aluminium alloy riveting behind plastic, the top cap piece and the last plastic, the cover is equipped with the sealing washer on the utmost point post, the sealing washer is located utmost point post and connection piece fixed connection's one and serves, utmost point post passes through sealing washer and top cap piece sealing contact. The top cap piece is aluminium system sheetmetal, and under the effect of riveting, the sealing washer receives the limiting displacement of riveting aluminium pig, and the atress compression is direct respectively and top cap piece and utmost point post in close contact with, because the smooth surface of two metalworks of top cap piece and utmost point post is level and smooth to it is sealed to have realized closely laminating through the sealing washer between two metalworks, has avoidd the risk of leaking gas, plays sealed effect, has reached the purpose that can ensure good gas tightness.
Preferably, the one end of utmost point post is connected with flange limit one, utmost point post passes through flange limit one and connection piece fixed connection, the connection piece is located one side of flange limit one, the one end of sealing washer is connected with flange limit two, the sealing washer contacts through flange limit two and the corresponding opposite side of flange limit one, be equipped with on the top cap piece with sealing washer assorted mounting hole, the top cap piece locates on the sealing washer through the mounting hole cover and contacts with one side of flange limit two, the top cap piece passes through sealing washer and utmost point post sealing connection, the two corresponding opposite sides of flange limit contact with flange limit one, be equipped with on the top cap piece with sealing washer assorted mounting hole, utmost point post passes through sealing washer and mounting hole sealing connection. Under the effect of riveting, the flange limit of utmost point post is first through flange limit two and the surperficial in close contact with of top cap piece, realizes sealed, and meanwhile utmost point post passes through the mounting hole sealing connection on sealing washer and the top cap piece, has further improved the gas tightness of battery apron.
Preferably, the other end of the sealing ring is positioned outside the mounting hole and is in contact with the upper plastic, so that when riveting is facilitated, the riveting aluminum block acts on the sealing ring through the upper plastic, the sealing ring is extruded axially, the sealing ring expands radially, the sealing ring is tightly matched with the pole column and the mounting hole respectively, meanwhile, the riveting aluminum block acts on the top cover plate through the upper plastic, the top cover plate is tightly contacted with the flange edge I on the pole column through the flange edge II on the sealing ring, and the sealing reliability is guaranteed; and the second flange edge is fixedly connected with the other end of the sealing ring and forms a whole. Under the effect of riveting, flange limit two forms an organic whole with the sealing washer, has further improved the gas tightness.
Preferably, a rectangular groove is formed in the center of the lower plastic, a through hole matched with the flange edge is formed in the bottom of the rectangular groove, the inner diameter of the through hole is smaller than the diameter of the flange edge I, and the flange edge I is located in the rectangular groove and is in close contact with the bottom of the rectangular groove. The upper plastic and the lower plastic play a role in buffering riveting, so that the top cover plate is protected; the inner diameter of the through hole is smaller than the diameter of the first flange edge, so that the first flange edge is limited in the rectangular groove, and the mounting and positioning of the pole are facilitated.
Preferably, the connecting sheet is fixedly connected with the first flange edge on the pole through laser welding. The connection strength of the connecting sheet and the pole column is improved.
Preferably, the pole is fixedly connected with the first flange edge and is integrated with the first flange edge. The connection strength of the connecting sheet and the pole column is improved, and the air tightness is further improved.
The utility model has the advantages that: the risk of air leakage is avoided, and the purpose of ensuring good air tightness is achieved; the sealing reliability is ensured; the upper plastic and the lower plastic play a role in buffering riveting, so that the top cover plate is protected; the inner diameter of the through hole is smaller than the diameter of the first flange edge, so that the first flange edge is limited in the rectangular groove, and the mounting and positioning of the pole are facilitated; the connection strength of the connecting sheet and the pole column is improved; the connection strength of the connecting sheet and the pole column is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an exploded view of the present invention;
FIG. 3 is a bottom view of FIG. 1;
fig. 4 is a schematic diagram of a prior art structure.
In the figure: 1. the pole comprises a pole column, 2 parts of upper plastic, 3 parts of a top cover plate, 4 parts of lower plastic, 5 parts of a riveting aluminum block, 6 parts of a connecting sheet, 7 parts of a sealing ring, 8 parts of a first flange edge, 9 parts of a second flange edge, 10 parts of mounting holes, 11 parts of a rectangular groove, 12 parts of a through hole and 13 parts of a confluence disc.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
In the embodiment shown in fig. 1 and 2, a battery cover plate with good sealing performance comprises a pole 1, an upper plastic 2, a top cover plate 3, a lower plastic 4, a riveting aluminum block 5 and a connecting sheet 6, wherein one end of the pole 1 is positioned on one side of the lower plastic 4, one end of the pole 1 positioned on one side of the lower plastic 4 is fixedly connected with the side surface of the connecting sheet 6, the other end of the pole 1 sequentially penetrates through the lower plastic 4, the top cover plate 3 and the upper plastic 2 are riveted with the riveting aluminum block 5, a sealing ring 7 is sleeved on the pole 1, the sealing ring 7 is positioned on one end of the pole 1 fixedly connected with the connecting sheet 6, and the pole 1 is in sealing contact with the top cover plate 3 through the sealing ring 7.
As shown in fig. 1 and 2, one end of the pole 1 is connected with a first flange edge 8, the pole 1 is fixedly connected with a connecting sheet 6 through the first flange edge 8, the connecting sheet 6 is located on one side of the first flange edge 8, one end of the sealing ring 7 is connected with a second flange edge 9, the sealing ring 7 is in contact with the other side corresponding to the first flange edge 8 through the second flange edge 9, a mounting hole 10 matched with the sealing ring 7 is formed in the top cover sheet 3, the top cover sheet 3 is sleeved on the sealing ring 7 through the mounting hole 10 and is in contact with one side of the second flange edge 9, the top cover sheet 3 is in sealing connection with the pole 1 through the sealing ring 7, and the other side corresponding to the second flange edge 9 is in contact with the first flange edge 8.
As shown in FIG. 1, the other end of the sealing ring 7 is located outside the mounting hole 10 and contacts with the upper plastic 2, and the second flange 9 is fixedly connected with the other end of the sealing ring 7 to form a whole.
As shown in fig. 1 and 3, a rectangular groove 11 is formed in the center of the lower plastic 4, a through hole 12 matched with the second flange edge 9 is formed in the bottom of the rectangular groove 11, the inner diameter of the through hole 12 is smaller than the diameter of the first flange edge 8, and the first flange edge 8 is located in the rectangular groove 11 and is in close contact with the bottom of the rectangular groove 11.
As shown in fig. 1 and 2, the connecting piece 6 is fixedly connected with the first flange 8 on the pole 1 by laser welding. The pole 1 is fixedly connected with the first flange edge 8 and is integrated.
Claims (6)
1. The utility model provides a battery cover plate that sealing performance is good, characterized by, include utmost point post (1), go up plastic (2), top cap piece (3), plastic (4), riveting aluminium pig (5) and connection piece (6) down, the one end of utmost point post (1) is located one side of plastic (4) down, utmost point post (1) is located the one end of plastic (4) one side down and the side fixed connection of connection piece (6), the other end of utmost point post (1) runs through plastic (4), top cap piece (3) and last plastic (2) in proper order after be connected with riveting aluminium pig (5) riveting, the cover is equipped with sealing washer (7) on utmost point post (1), sealing washer (7) are located utmost point post (1) and connection piece (6) fixed connection's one end, utmost point post (1) are through sealing washer (7) and top cap piece (3) sealing contact.
2. The battery cover plate with good sealing performance according to claim 1, wherein one end of the pole (1) is connected with a first flange edge (8), the pole (1) is fixedly connected with the connecting sheet (6) through a first flange edge (8), the connecting piece (6) is positioned at one side of the first flange edge (8), one end of the sealing ring (7) is connected with the second flange edge (9), the sealing ring (7) is contacted with the other side corresponding to the first flange edge (8) through a second flange edge (9), the top cover plate (3) is provided with a mounting hole (10) matched with the sealing ring (7), the top cover plate (3) is sleeved on the sealing ring (7) through the mounting hole (10) and is contacted with one side of the flange edge II (9), the top cover plate (3) is connected with the pole (1) in a sealing way through a sealing ring (7), the other side corresponding to the second flange edge (9) is in contact with the first flange edge (8).
3. The battery cover plate with good sealing performance according to claim 2, wherein the other end of the sealing ring (7) is located outside the mounting hole (10) and is in contact with the upper plastic (2), and the second flange edge (9) is fixedly connected with the other end of the sealing ring (7) and is formed into a whole.
4. The battery cover plate with good sealing performance according to claim 2, wherein a rectangular groove (11) is formed in the center of the lower plastic (4), a through hole (12) matched with the second flange edge (9) is formed in the bottom of the rectangular groove (11), the inner diameter of the through hole (12) is smaller than that of the first flange edge (8), and the first flange edge (8) is located in the rectangular groove (11) and is in close contact with the bottom of the rectangular groove (11).
5. The battery cover plate with good sealing performance according to claim 2, 3 or 4, characterized in that the connecting sheet (6) is fixedly connected with the first flange edge (8) on the pole (1) through laser welding.
6. The battery cover plate with good sealing performance according to claim 2, 3 or 4, wherein the pole (1) is fixedly connected with the first flange edge (8) and is formed into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122565150.5U CN216436010U (en) | 2021-10-25 | 2021-10-25 | Battery apron that sealing performance is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122565150.5U CN216436010U (en) | 2021-10-25 | 2021-10-25 | Battery apron that sealing performance is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216436010U true CN216436010U (en) | 2022-05-03 |
Family
ID=81332095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122565150.5U Active CN216436010U (en) | 2021-10-25 | 2021-10-25 | Battery apron that sealing performance is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216436010U (en) |
-
2021
- 2021-10-25 CN CN202122565150.5U patent/CN216436010U/en active Active
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