CN217134515U - Seal nail, battery apron and battery - Google Patents
Seal nail, battery apron and battery Download PDFInfo
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- CN217134515U CN217134515U CN202220867636.6U CN202220867636U CN217134515U CN 217134515 U CN217134515 U CN 217134515U CN 202220867636 U CN202220867636 U CN 202220867636U CN 217134515 U CN217134515 U CN 217134515U
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- explosion
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- nail
- sealing
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Abstract
The utility model provides a sealing nail, a battery cover plate and a battery, which relate to the technical field of new energy, the sealing nail comprises a sealing nail main body, wherein an explosion-proof hole is arranged on the sealing nail main body, and an explosion-proof valve is arranged in the explosion-proof hole; the one end of annotating the liquid hole is inserted to sealed nail main part is the lower extreme, sealed nail main part upper end is provided with the isolation groove, just the isolation groove is followed the circumference in explosion-proof hole sets up a week. The utility model provides a sealed nail main part of nail has explosion-proof hole, and explosion-proof valve setting is in explosion-proof hole, and just so can utilize the notes liquid hole on the battery apron to carry out the pressure release for the messenger, just so can only set up one and annotate the liquid hole on the battery apron, has saved the setting in a hole that is used for installing explosion-proof valve, and has also reduced the welding of explosion-proof valve.
Description
Technical Field
The utility model belongs to the technical field of the technique of the new forms of energy and specifically relates to a sealed nail, battery apron and battery are related to.
Background
With the development of electric automobiles, cost control of batteries is always a pain point in the industry, and cost control of many battery manufacturers cannot lead to profit failure or even loss, thereby causing yield failure.
The existing battery cover plate needs to be provided with an explosion-proof valve and a sealing aluminum nail, the explosion-proof valve and the sealing aluminum nail are welded on the battery cover plate, and the cost occupied in the whole battery is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealed nail, battery apron and battery to it is higher to alleviate the battery cost, reduces the technical problem of enterprise competitiveness.
In a first aspect, the utility model provides a sealing nail, which comprises a sealing nail main body, wherein an explosion-proof hole is arranged on the sealing nail main body, and an explosion-proof valve is arranged in the explosion-proof hole;
the one end of annotating the liquid hole is inserted to sealed nail main part is the lower extreme, sealed nail main part upper end is provided with the isolation tank, just the isolation tank is followed the circumference in explosion-proof hole sets up a week.
In an alternative embodiment, an annular groove is provided on the explosion-proof valve.
In an alternative embodiment, an arc-shaped groove is arranged on the explosion-proof valve.
In an alternative embodiment, the sealing spike is a sealing aluminum spike.
In an alternative embodiment, the distance between the outer wall of the sealing spike body and the inner wall of the explosion-proof hole is not less than 0.4 mm.
In an alternative embodiment, the lower end of the seal nail body has an insertion portion, and the outer diameter of the insertion portion gradually increases from the lower end of the seal nail body to the upper end of the seal nail body.
In an alternative embodiment, the explosion-proof valve divides the explosion-proof hole into an upper explosion-proof hole and a lower explosion-proof hole.
The utility model provides a sealed nail main part of nail has explosion-proof hole, and explosion-proof valve setting is in explosion-proof hole, and just so can utilize the notes liquid hole on the battery apron to carry out the pressure release for the messenger, just so can only set up one and annotate the liquid hole on the battery apron, has saved the setting in a hole that is used for installing explosion-proof valve, and has also reduced the welding of explosion-proof valve.
In order to enable the sealing nail main body and the battery cover plate to be welded without influencing the explosion-proof valve, the upper end of the sealing nail main body is provided with the isolation groove, so that the deformation of the explosion-proof valve caused by heat generation during laser welding stress and laser welding can be effectively reduced, the stability of the explosion-proof valve explosion value is improved, and finally the consistency and the safety of the battery are improved.
In a second aspect, the present invention provides a battery cover plate comprising the sealing nail of any one of the preceding embodiments.
In an optional embodiment, a liquid injection hole is arranged on the battery cover plate, the liquid injection hole comprises an upper liquid injection hole and a lower liquid injection hole which are concentrically arranged, and the diameter of the upper liquid injection hole is larger than that of the lower liquid injection hole;
the sealing nail is arranged in the upper liquid injection hole, and the diameter of the explosion-proof hole is larger than that of the lower liquid injection hole.
The utility model also provides a battery apron, this battery apron adopt foretell sealed nail to have all beneficial effects of sealed nail.
In a third aspect, the present invention provides a battery comprising the battery cover plate of any one of the previous embodiments.
The utility model also provides a battery, this battery adopts foretell battery apron to have all beneficial effects of battery apron.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described 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 structural view of a seal nail provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of section A-A of the seal nail shown in FIG. 1;
fig. 3 is a schematic structural diagram of a battery cover plate according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a section B-B of the battery cover plate shown in FIG. 3;
fig. 5 is a structural view of the battery cover plate shown in fig. 3, with the sealing nail removed, taken along the B-B section.
An icon: 100-sealing the nail body; 200-an isolation groove; 300-an explosion-proof valve; 400-arc-shaped groove; 500-explosion-proof hole; 501-arranging an explosion-proof hole; 502-lower blast hole; 600-an insertion portion; 700-liquid injection hole; 701-upper liquid injection holes; 702-bottom pour well.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-2, the utility model provides a sealing nail, which comprises a sealing nail main body 100, wherein an explosion-proof hole 500 is arranged on the sealing nail main body 100, and an explosion-proof valve 300 is arranged in the explosion-proof hole 500;
the one end that annotates liquid hole 700 is inserted to sealed nail main part 100 is the lower extreme, sealed nail main part 100 upper end is provided with isolation groove 200, just isolation groove 200 follows the circumference of explosion-proof hole 500 sets up a week.
In some embodiments, the sealing nail comprises a sealing nail body 100, wherein the sealing nail body 100 is generally circular in cross section, and a blast-proof hole 500 is concentrically arranged on the sealing nail body 100; when sealed nail need seal annotate liquid hole 700, with sealed nail welding in annotating liquid hole 700, owing to be provided with the isolation grass in the upper end of sealed nail main part 100, explosion-proof valve 300 deflection that the heat production leads to when having so can effectual reduced laser welding stress and laser welding to improve explosion-proof valve 300 blasting value stability, finally make battery uniformity and security improve.
Be provided with explosion-proof valve 300 in explosion-proof hole 500, two parts of explosion-proof valve 300 and sealed nail can merge into a part like this, have reduced part cost by a wide margin, and because explosion-proof valve 300 sets up on sealed nail, can reduce like this and set up the hole because the pressure release on battery cover plate to reduce welding operation once.
In an alternative embodiment, the explosion-proof valve 300 is provided with an annular groove.
In an alternative embodiment, an arcuate slot 400 is provided in the explosion proof valve 300.
In an alternative embodiment, the sealing spike is a sealing aluminum spike.
The material of the common sealing nail is aluminum; the explosion-proof valve 300 is provided with an annular groove, and the annular groove enables the explosion-proof valve 300 to form a weak area, so that the explosion-proof valve 300 can be ensured to reach a certain air pressure to be exploded.
In order to prevent the explosion-proof valve 300 from separating from the explosion-proof hole 500 and causing damage when impacting other places, the arc-shaped groove 400 is arranged on the explosion-proof valve 300, and the weak area formed on the explosion-proof valve 300 is not formed into a ring by the arc-shaped groove 400, so that when the explosion-proof valve 300 is exploded at a certain air pressure, the explosion-proof valve 300 does not separate from the explosion-proof hole 500.
In an alternative embodiment, the distance between the outer wall of the seal pin body 100 and the inner wall of the explosion-proof hole 500 is not less than 0.4 mm.
In order to avoid the problem that the stability of the explosion-proof valve 300 is not affected when the sealing nail main body 100 is welded to the battery cover plate, the distance between the outer wall of the sealing nail main body 100 and the inner wall of the explosion-proof hole 500 is generally larger than 0.4mm, so that the effect of increasing strength and resisting deformation can be achieved when the sealing nail main body 100 is welded to the battery cover plate, the laser welding stress is reduced, the deformation amount of the explosion-proof valve 300 caused by heat generation is reduced, the stability of the explosion value of the explosion-proof valve 300 is improved, and finally the consistency and the safety of the battery are improved. In addition, the laser welding is facilitated, laser penetration is prevented, and the welding reliability and the welding goodness are improved.
In an alternative embodiment, the lower end of the seal nail body 100 has an insertion portion 600, and the outer diameter of the insertion portion 600 gradually increases from the lower end of the seal nail body 100 to the upper end of the seal nail body 100.
In an alternative embodiment, the explosion-proof valve 300 divides the explosion-proof hole 500 into an upper explosion-proof hole 501 and a lower explosion-proof hole 502.
In order to prevent the electrolyte injection hole 700 from being scratched by the seal pin body 100 when the seal pin body 100 is inserted into the battery cover plate, and thus, metal chips on the battery cover plate are dropped into the battery case to cause a short circuit, the seal pin body 100 has an insertion portion 600 at the lower end thereof, the diameter of the insertion portion 600 is gradually increased in the extending direction of the upper end of the seal pin body 100, and the insertion portion 600 facilitates the insertion of the seal pin body 100 into the electrolyte injection hole 700.
The explosion-proof valve 300 divides the explosion-proof hole 500 into an upper explosion-proof hole 501 and a lower explosion-proof hole 502, the explosion-proof valve 300 is disposed in the explosion-proof hole 500, and the explosion-proof valve 300 has a certain distance from the upper end and the lower end of the seal nail body 100.
The utility model provides a sealed nail main part 100 of nail has explosion-proof hole 500, and explosion-proof valve 300 sets up in explosion-proof hole 500, and just can utilize notes liquid hole 700 on the battery apron to carry out the pressure release for the messenger like this, just so can only set up one and annotate liquid hole 700 on the battery apron, has saved the setting in a hole that is used for installing explosion-proof valve 300, and has also reduced explosion-proof valve 300's welding once.
In order to prevent the explosion-proof valve 300 from being affected when the sealing nail body 100 is welded with the battery cover plate, the isolation groove 200 is formed in the upper end of the sealing nail body 100, so that the deformation of the explosion-proof valve 300 caused by heat generated during laser welding stress and laser welding can be effectively reduced, the stability of the explosion value of the explosion-proof valve 300 is improved, and finally the consistency and the safety of the battery are improved.
Referring to fig. 3-5, the present invention provides a battery cover plate comprising the seal nail of any one of the previous embodiments.
In an alternative embodiment, a liquid injection hole 700 is arranged on the battery cover plate, the liquid injection hole 700 comprises an upper liquid injection hole 701 and a lower liquid injection hole 702 which are concentrically arranged, and the diameter of the upper liquid injection hole 701 is larger than that of the lower liquid injection hole 702;
the sealing nail is arranged in the upper liquid injection hole 701, and the diameter of the explosion-proof hole 500 is larger than that of the lower liquid injection hole 702.
The battery cover plate is provided with a liquid injection hole 700, the liquid injection hole 700 is divided into an upper liquid injection hole 701 with a larger diameter and a lower liquid injection hole 702 with a smaller diameter, and during general liquid injection, electrolyte is directly injected into the lower liquid injection hole 702, so that impurities, particles and the like can exist at the upper end of the lower liquid injection hole 702; in order to prevent the impurities or the particles from influencing the explosion-proof valve 300, the diameter of the lower explosion-proof hole 502 is larger than that of the lower liquid injection hole 702, and the diameter of the explosion-proof valve 300 is separated from that of the lower liquid injection hole 702 by one lower explosion-proof hole 502, so that the impurities and the particles are prevented from extruding the explosion-proof valve 300 to influence the explosion value.
The lower pouring hole 702 has a diameter smaller than the minimum diameter of the insertion portion 600, and has an inner diameter matching the insertion portion 600 in the upper pouring hole 701, so that the seal nail body 100 can be firmly fixed in the upper pouring hole 701.
And the diameter of the explosion-proof valve 300 is larger than that of the lower liquid injection hole 702, so that the lower liquid injection hole 702 can be prevented from being blocked to influence pressure relief.
The utility model also provides a battery apron, this battery apron adopt foretell sealed nail to have all beneficial effects of sealed nail.
The utility model provides a battery, including any one of the preceding embodiment battery apron.
The utility model also provides a battery, this battery adopts foretell battery apron to have all beneficial effects of battery apron.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The sealing nail is characterized by comprising a sealing nail main body (100), wherein an explosion-proof hole (500) is formed in the sealing nail main body (100), and an explosion-proof valve (300) is arranged in the explosion-proof hole (500);
the one end of annotating liquid hole (700) is annotated in the insertion of sealed nail main part (100) is the lower extreme, sealed nail main part (100) upper end is provided with isolation groove (200), just isolation groove (200) are followed the circumference in explosion-proof hole (500) sets up a week.
2. The sealing spike according to claim 1, wherein an annular groove is provided on the explosion-proof valve (300).
3. The sealing nail according to claim 2, characterized in that an arc-shaped slot (400) is provided on the explosion-proof valve (300).
4. The sealing nail according to claim 3, wherein the sealing nail is a sealing aluminum nail.
5. The sealing spike according to claim 4, wherein a distance between an outer wall of the sealing spike body (100) and an inner wall of the explosion-proof hole (500) is not less than 0.4 mm.
6. The sealing nail according to claim 2, wherein the sealing nail body (100) has an insertion portion (600) at a lower end thereof, and an outer diameter of the insertion portion (600) is gradually increased in a direction from the lower end of the sealing nail body (100) to an upper end of the sealing nail body (100).
7. The seal nail according to claim 1, wherein the explosion-proof valve (300) divides the explosion-proof hole (500) into an upper explosion-proof hole (501) and a lower explosion-proof hole (502).
8. A battery cover plate comprising the seal nail according to any one of claims 1 to 7.
9. The battery cover plate according to claim 8, wherein a liquid injection hole (700) is formed in the battery cover plate, the liquid injection hole (700) comprises an upper liquid injection hole (701) and a lower liquid injection hole (702) which are concentrically arranged, and the diameter of the upper liquid injection hole (701) is larger than that of the lower liquid injection hole (702);
the sealing nail is arranged in the upper liquid injection hole (701), and the diameter of the explosion-proof hole (500) is larger than that of the lower liquid injection hole (702).
10. A battery comprising the battery cover plate according to any one of claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220867636.6U CN217134515U (en) | 2022-04-14 | 2022-04-14 | Seal nail, battery apron and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220867636.6U CN217134515U (en) | 2022-04-14 | 2022-04-14 | Seal nail, battery apron and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217134515U true CN217134515U (en) | 2022-08-05 |
Family
ID=82649432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220867636.6U Active CN217134515U (en) | 2022-04-14 | 2022-04-14 | Seal nail, battery apron and battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217134515U (en) |
-
2022
- 2022-04-14 CN CN202220867636.6U patent/CN217134515U/en active Active
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