CN215834607U - Safe and reliable's battery apron explosion-proof construction - Google Patents
Safe and reliable's battery apron explosion-proof construction Download PDFInfo
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- CN215834607U CN215834607U CN202121804144.4U CN202121804144U CN215834607U CN 215834607 U CN215834607 U CN 215834607U CN 202121804144 U CN202121804144 U CN 202121804144U CN 215834607 U CN215834607 U CN 215834607U
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- explosion
- proof
- cover plate
- battery cover
- battery
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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
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Abstract
The utility model discloses a safe and reliable explosion-proof structure of a battery cover plate, which comprises the battery cover plate, an explosion-proof film and a surface paste, wherein an explosion-proof opening is formed in the battery cover plate, the explosion-proof film is arranged at the bottom of the explosion-proof opening and seals the explosion-proof opening, the surface paste is arranged at the upper part of the explosion-proof opening and seals the explosion-proof opening, the explosion-proof film, the surface paste and the explosion-proof opening jointly surround to form an explosion chamber, and an exhaust duct communicated with the explosion chamber and the outside is arranged on the upper surface of the battery cover plate beside the explosion-proof opening. The utility model can quickly reduce the instant pressure in the battery, improve the exhaust effect, reduce the thickness of the battery cover plate in the explosion-proof area and is beneficial to expanding the battery capacity.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a safe and reliable battery cover plate explosion-proof structure.
[ background of the utility model ]
When the power battery is used, high-temperature and high-pressure gas can be generated inside the battery due to overcharge, overdischarge, short circuit and the like of the battery, and if the high-temperature and high-pressure gas cannot be discharged outside the battery in time, the battery can be decomposed, exploded and ignited, so that serious accidents can occur. Therefore, the power battery is generally provided with an explosion-proof structure with an internal pressure releasing function, and the explosion-proof structure is used for timely discharging high-temperature and high-pressure gas in the battery out of the battery, so that the battery explosion is avoided, and the use safety is improved.
In the prior art, most of explosion-proof structures on a battery cover plate adopt annular step structures, the upper surfaces of the explosion-proof structures protrude out of the surface of the cover plate, and the bottom of the explosion-proof structures protrudes out of the lower surface of the cover plate, so that the battery cover plate protrudes downwards to occupy the battery capacity, a plurality of battery cells exist in one battery pack, the capacity reduction of each battery cell has great influence on the overall capacity of the overall battery pack, and the increase of endurance mileage is not facilitated; in the prior art, the explosion lines of most explosion-proof membranes are arranged along the connection periphery of the explosion-proof membranes, and the instantaneous pressure reduction capability is poor during explosion.
Therefore, it is necessary to provide a new explosion-proof structure of a battery cover plate which is safe and reliable to solve the above problems.
[ Utility model ] content
The utility model aims to provide a safe and reliable battery cover plate explosion-proof structure, which can quickly reduce the instantaneous pressure in a battery, improve the exhaust effect, reduce the thickness of the battery cover plate in an explosion-proof area and facilitate the expansion of the battery capacity.
The utility model realizes the purpose through the following technical scheme: the utility model provides a safe and reliable's battery apron explosion-proof structure, its includes battery apron, rupture membrane and face subsides, be provided with explosion-proof mouthful on the battery apron, the rupture membrane sets up just seal on the explosion-proof mouthful bottom position and stop the explosion-proof mouth, the face subsides set up explosion-proof mouthful upper portion and seal the explosion-proof mouth, the rupture membrane with the face subsides the explosion-proof mouth centers on forming a blasting chamber jointly, the battery apron upper surface is located the other intercommunication that is provided with of explosion-proof mouth blasting chamber and external air discharge duct.
Furthermore, a double-sided adhesive tape is adhered to the outer periphery of the lower surface of the surface sticker, and a non-adhesive notch is formed in the position, corresponding to the exhaust groove, of the double-sided adhesive tape.
Furthermore, the surface sticker is pasted on the battery cover plate through a double-sided adhesive tape and is pasted around the periphery of the explosion-proof opening.
Furthermore, one end of the exhaust groove extends to the blasting chamber, and the other end of the exhaust groove extends to exceed the outer edge of the face paste by 2-3 mm.
Furthermore, the explosion-proof membrane include with battery apron lower surface seal welding is in the same place annular connecting portion, be located annular connecting portion centers on the explosion-proof diaphragm in the region and sets up annular connecting portion inner circle with the connecting ring piece on explosion-proof diaphragm outer fringe, annular connecting portion encircle the setting of explosion-proof mouthful.
Furthermore, an X-shaped blasting line is arranged on the anti-explosion diaphragm, and the middle cross point of the X-shaped blasting line is overlapped with the central point of the anti-explosion opening.
Furthermore, the connecting ring sheet is of a cone sheet structure with a large upper part and a small lower part.
Furthermore, the lower surface of the battery cover plate is provided with a step groove surrounding the explosion-proof opening, and the annular connecting part is welded on the step groove.
Compared with the prior art, the safe and reliable battery cover plate explosion-proof structure has the beneficial effects that: through the arrangement of the explosion-proof port and the matching of an explosion-proof membrane structure, when the pressure in the battery is too high, the internal pressure impacts the explosion-proof membrane, the X-shaped explosion line with weak strength in the explosion-proof membrane is impacted and exploded, the pressure in the battery directly upwards enters the explosion chamber and is released to the outside through the exhaust groove, and rapid release and decompression are realized; the welding track of the explosion-proof membrane and the battery cover plate is far away from the explosion line through the X-shaped explosion line on the explosion-proof membrane, so that the influence of welding on the explosion pressure of the explosion-proof membrane is reduced, the structural strength of an explosion-proof line area is improved, the breathing resistance is improved, and the safety performance of the battery is improved; the surface paste is of a flat layer structure and is attached to the upper surface of the battery cover plate, the explosion-proof film is of a slightly convex structure and is welded in the step groove in the lower surface of the battery cover plate, the overall thickness of the battery cover plate in the explosion-proof structure area is greatly reduced, and the battery capacity is greatly improved compared with the original structure.
[ description of the drawings ]
FIG. 1 is a schematic illustration of an explosive structure according to an embodiment of the present invention;
FIG. 2 is a schematic partial structure diagram according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 4 is a schematic view of a lower surface structure of a battery cover plate according to an embodiment of the present invention;
description of reference numerals:
100, a safe and reliable battery cover plate explosion-proof structure;
1, a battery cover plate, 11 explosion-proof ports, 12 explosion chambers, 13 exhaust grooves and 14 step grooves; 2, an explosion-proof membrane, 21 an annular connecting part, 22 an explosion-proof membrane, 23X-shaped blasting lines and 24 connecting annular sheets; 3-side paste, 31 double-side adhesive tape and 32 no adhesive notch.
[ detailed description ] embodiments
Example (b):
referring to fig. 1 to 4, a safe and reliable explosion-proof structure 100 for a battery cover plate of the present embodiment includes a battery cover plate 1, an explosion-proof membrane 2 and a surface patch 3, wherein the battery cover plate 1 is provided with an explosion-proof opening 11, the explosion-proof membrane 2 is disposed at a bottom of the explosion-proof opening 11 and seals the explosion-proof opening 11, the surface patch 3 is disposed at an upper portion of the explosion-proof opening 11 and seals the explosion-proof opening 11, the explosion-proof membrane 2, the surface patch 3 and the explosion-proof opening 11 surround to form an explosion chamber 12, and an exhaust duct 13 communicating the explosion chamber 12 with the outside is disposed on an upper surface of the battery cover plate 1 beside the explosion-proof opening 11.
The outer periphery of the lower surface of the surface patch 3 is adhered with a double-sided adhesive tape 31, and a non-adhesive notch 32 is arranged on the double-sided adhesive tape 31 corresponding to the exhaust groove 13. The surface patch 3 is stuck on the battery cover plate 1 through a double-sided adhesive tape 31 and is stuck around the periphery of the explosion-proof opening 11.
One end of the exhaust duct 13 extends to the blasting chamber 12 and the other end extends 2-3 mm beyond the end of the face paste 3.
The explosion-proof membrane 2 comprises an annular connecting part 21 which is welded with the lower surface of the battery cover plate 1 in a sealing mode, an explosion-proof membrane 22 which is located in the surrounding area of the annular connecting part 21, and a connecting ring piece 24 which is used for arranging the inner ring of the annular connecting part 21 and the outer edge of the explosion-proof membrane 22, wherein the annular connecting part 21 is arranged around the explosion-proof opening 11. An X-shaped blasting line 23 is arranged on the anti-explosion membrane 22, and the middle cross point of the X-shaped blasting line 23 is overlapped with the central point of the anti-explosion opening 11. The connecting ring piece 24 is a cone-shaped sheet structure with a large upper part and a small lower part.
The lower surface of the battery cover plate 1 is provided with a step groove 14 arranged around the explosion-proof opening 11, and the annular connecting part 21 is welded on the step groove 14.
In the embodiment, through the arrangement of the explosion-proof port 11 and the matching of the structure of the explosion-proof membrane 2, when the internal pressure of the battery is too high, the internal pressure impacts the explosion-proof membrane 2, the position of the X-shaped explosion line 23 with weak strength in the explosion-proof membrane 2 is impacted and exploded, the internal pressure of the battery directly enters the explosion chamber 12 upwards, and then the pressure is released to the outside through the exhaust groove 13, so that the rapid release and decompression are realized; the X-shaped explosion line 23 on the explosion-proof membrane 2 enables the welding track of the explosion-proof membrane 2 and the battery cover plate 1 to be far away from the explosion line, reduces the influence of welding on the explosion pressure of the explosion-proof membrane, improves the structural strength of an explosion-proof line area, improves the breathing resistance and improves the safety performance of the battery; the surface paste 3 is of a flat layer structure and is attached to the upper surface of the battery cover plate 1, the explosion-proof film 2 is of a slightly downward convex structure and is welded in the step groove 14 of the lower surface of the battery cover plate 1, the overall thickness of the battery cover plate 1 in an explosion-proof structure area is greatly reduced, and the battery capacity is greatly improved compared with the original structure.
While the technical content and the technical features of the utility model have been disclosed, those skilled in the art can make various substitutions and modifications based on the teaching and the disclosure of the utility model without departing from the spirit of the utility model. Therefore, the protection scope of the present invention should not be limited to the embodiments shown, but should include various alternatives and modifications without departing from the utility model and covered by the claims.
Claims (8)
1. The utility model provides a safe and reliable's battery apron explosion-proof structure which characterized in that: it includes battery apron, rupture membrane and face subsides, be provided with explosion-proof mouthful on the battery apron, the rupture membrane sets up on the explosion-proof mouthful bottom position and seal explosion-proof mouthful, the face subsides set up explosion-proof mouthful upper portion just seals explosion-proof mouthful, the rupture membrane with the face subsides explosion-proof mouthful is around forming a blasting chamber jointly, the battery apron upper surface is located the other intercommunication that is provided with of explosion-proof mouthful blasting chamber and external air discharge duct.
2. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 1, wherein: the outer periphery of the lower surface of the surface patch is pasted with a double-sided adhesive tape, and a non-adhesive notch is arranged on the double-sided adhesive tape corresponding to the exhaust groove.
3. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 2, wherein: the surface sticker is adhered to the battery cover plate through a double-sided adhesive tape and is adhered around the periphery of the explosion-proof opening.
4. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 1, wherein: one end of the exhaust groove extends to the blasting chamber, and the other end of the exhaust groove extends to exceed the outer edge of the face paste by 2-3 mm.
5. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 1, wherein: the explosion-proof membrane include with battery apron lower surface seal welding is in the same place annular connecting portion, be located annular connecting portion centers on the explosion-proof diaphragm in the region and sets up annular connecting portion inner circle with the connecting ring piece on explosion-proof diaphragm outer fringe, annular connecting portion encircle the explosion-proof mouthful setting.
6. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 5, wherein: an X-shaped blasting line is arranged on the anti-explosion diaphragm, and the middle cross point of the X-shaped blasting line is overlapped with the central point of the anti-explosion opening.
7. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 5, wherein: the connecting ring sheet is of a cone sheet structure with a large upper part and a small lower part.
8. A safe and reliable explosion-proof structure of a battery cover plate as set forth in claim 5, wherein: the lower surface of the battery cover plate is provided with a step groove surrounding the explosion-proof opening, and the annular connecting part is welded on the step groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121804144.4U CN215834607U (en) | 2021-08-04 | 2021-08-04 | Safe and reliable's battery apron explosion-proof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121804144.4U CN215834607U (en) | 2021-08-04 | 2021-08-04 | Safe and reliable's battery apron explosion-proof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215834607U true CN215834607U (en) | 2022-02-15 |
Family
ID=80193747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121804144.4U Active CN215834607U (en) | 2021-08-04 | 2021-08-04 | Safe and reliable's battery apron explosion-proof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215834607U (en) |
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2021
- 2021-08-04 CN CN202121804144.4U patent/CN215834607U/en active Active
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