CN220122030U - Pressure relief explosion-proof battery - Google Patents
Pressure relief explosion-proof battery Download PDFInfo
- Publication number
- CN220122030U CN220122030U CN202321457086.1U CN202321457086U CN220122030U CN 220122030 U CN220122030 U CN 220122030U CN 202321457086 U CN202321457086 U CN 202321457086U CN 220122030 U CN220122030 U CN 220122030U
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- CN
- China
- Prior art keywords
- pressure relief
- battery
- piece
- pressure
- explosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a pressure-relief explosion-proof battery, relates to the technical field of batteries, and aims to solve the technical problems that in the prior art, the explosion-proof effect is poor, the pressure inside the battery is increased due to the fact that pressure relief cannot be carried out inside the battery when the battery bulges, and potential safety hazards exist 。 The device comprises an anode cover plate, a cathode confluence plate, a sealing ring, a conductive frame and a pressure release piece, wherein the sealing ring is arranged on the periphery of the cathode confluence plate; the pressure release piece is arranged above the negative electrode confluence piece and the sealing ring for sealing, and is used for releasingThe pressure piece comprises a pressure relief main body and a pressure relief pipeline communicated with the pressure relief main body, and the pressure relief pipeline extends out of the conductive frame through the sealing hole.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a pressure relief explosion-proof battery.
Background
For the traditional cylindrical battery structure, the explosion-proof measure adopted at present is to install a battery explosion-proof valve on a battery anode cover plate. Fig. 1 is an exploded structure schematic view of a battery in the prior art, and fig. 2 is a cross-sectional structure schematic view of the battery in the prior art, as shown in fig. 1 and 2, in the actual use process, a positive cover plate is directly installed on the upper part of a battery negative electrode confluence sheet, a battery top cover and an explosion-proof valve are in a contact state, and thus the battery is easily broken, and a large potential safety hazard exists. And it is difficult for the user to observe the operating state of the battery outside the battery, i.e., to find that the battery is already in a dangerous state of use.
The present inventors found that the present battery has at least the following technical problems:
the explosion-proof effect is poor, when the battery bulge scheduling problem appears, the inside pressure of battery increases because the unable pressure release that carries on of battery, has the potential safety hazard.
Disclosure of Invention
The utility model aims to provide a pressure-relief explosion-proof battery, which solves the technical problems that in the prior art, the explosion-proof effect is poor, the pressure inside the battery is increased due to the fact that the pressure inside the battery cannot be relieved when the battery bulges, and potential safety hazards exist 。 The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a pressure relief explosion-proof battery, which comprises an anode cover plate, a cathode confluence sheet, a sealing ring, a conductive frame and a pressure relief piece, wherein:
the sealing ring is arranged on the periphery of the negative electrode bus piece, the conducting frame is arranged between the negative electrode bus piece and the positive electrode cover plate, and a sealing hole is formed in the conducting frame;
the pressure relief piece set up in the negative pole is converged the piece with seal the top of sealing washer, the pressure relief piece include the pressure relief main part with the pressure relief pipeline of pressure relief main part intercommunication, the pressure relief pipeline is followed the sealed hole stretches out electrically conductive frame.
Preferably, the connector further comprises a connecting frame, wherein:
the connecting frame is connected to the conducting frame, the bottom of the connecting frame is in contact with the negative electrode busbar, and a plurality of open grooves are formed in the bottom of the connecting frame.
Preferably, a limiting structure is arranged on the connecting frame, wherein:
the limiting structure is arranged on the periphery of the connecting frame, a clamping angle is arranged between the limiting structure and the connecting frame, and the clamping angle is matched with a first included angle on the negative electrode confluence sheet;
the open slot extends upwards to the upper side of the limiting structure.
Preferably, the pressure relief body comprises a cavity, a sliding plug is arranged in the cavity, wherein:
one side of the sliding plug is a sealing end of the cavity, and the other side of the sliding plug is an opening end of the cavity;
the pressure relief pipeline is communicated with the cavity.
Preferably, the pressure relief body further comprises a sliding post and an open frame, wherein:
one end of the sliding column is connected to the sliding column, and the sliding column extends out of the cavity from the opening end;
the opening frame is connected to the other end of the sliding column.
Preferably, the open end is provided with an aluminum film, and the surface of the aluminum film is provided with a notch groove.
Preferably, the scoring groove adopts a cross-shaped structure, and the opening frame is in a round or cross-shaped structure.
Preferably, the pressure release piece is made of transparent materials.
Preferably, a color card is arranged on the end face of the sliding plug, which is close to the sealing end.
Preferably, the sealing end adopts a continuous concave-convex surface, and the color card surface adopts a concave-convex structure corresponding to the sealing end.
The utility model provides a pressure relief explosion-proof battery, which comprises a positive cover plate, a negative electrode confluence sheet, a sealing ring, a conductive frame and a pressure relief piece, wherein the conductive frame is arranged between the negative electrode confluence sheet and the positive cover plate, the pressure relief piece is positioned above the sealing ring and the negative electrode confluence sheet, the positive cover plate of the battery is separated above a sealed space inside the battery through the conductive frame below the positive cover plate, the pressure relief piece is matched with the pressure relief piece to comprise a pressure relief main body and a pressure relief pipeline communicated with the pressure relief main body, the pressure relief pipeline extends out of the conductive frame through a sealing hole on the conductive frame, the pressure relief piece is added on the side wall of the battery, the battery can be relieved through the pressure relief piece, the problems of bulge and the like of the battery are avoided, and the safety of the battery is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an exploded structure of a prior art battery;
FIG. 2 is a schematic cross-sectional structural view of a prior art battery;
FIG. 3 is a schematic view of the structure of the pressure relief explosion-proof battery of the present utility model;
fig. 4 is a schematic structural view of a conductive frame in the pressure relief explosion-proof battery of the present utility model;
FIG. 5 is an enlarged schematic view of the pressure relief member of the pressure relief explosion-proof battery of the present utility model;
FIG. 6 is a schematic diagram of the structure of an aluminum membrane in the pressure relief explosion-proof battery of the present utility model;
fig. 7 is a schematic structural view of a square cavity in the pressure relief explosion-proof battery of the present utility model.
In the figure: 1. a positive electrode cover plate; 2. a negative electrode bus bar; 21. a first included angle; 3. sealing the sealing ring; 4. a conductive frame; 40. sealing the hole; 5. a pressure relief body; 50. a cavity; 501. sealing the end; 502. an open end; 51. a pressure relief pipeline; 52. a sliding plug; 53. a sliding column; 54. an opening frame; 55. an aluminum film; 550. a scoring groove; 56. a color chart; 6. a connecting frame; 60. an open slot; 61. a limit structure; 62. a clamping angle; 7. a winding core; 8. a steel shell; 9. an aluminum plug; 10. and sealing the rubber plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In the description of the present utility model, it should be understood that the terms "center", "side", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
The utility model provides a pressure relief explosion-proof battery, and fig. 3 is a schematic structural diagram of the embodiment, and as shown in fig. 3, the pressure relief explosion-proof battery comprises a positive electrode cover plate 1, a negative electrode busbar sheet 2, a sealing ring 3, a conductive frame 4 and a pressure relief piece.
The sealing ring 3 is disposed on the peripheral side of the negative electrode busbar 2, the conductive frame 4 is disposed between the negative electrode busbar 2 and the positive electrode cover plate 1, and the conductive frame 4 is provided with a sealing hole 40. In this embodiment, the conductive frame 4 is ultrasonically welded to the positive electrode cover plate 1.
The pressure release piece sets up in the top of negative pole confluence piece 2 and sealing washer 3, carries out the pressure release processing to the battery through the pressure release piece, improves the security of battery. The pressure relief piece comprises a pressure relief main body 5 and a pressure relief pipeline 51 communicated with the pressure relief main body 5, wherein the pressure relief pipeline 51 extends out of the conductive frame 4 through the sealing hole 40.
Specifically, the pressure release piece is located the top of sealing washer 3 and negative pole conflux piece 2, is in the below of anodal apron 1. When the positive cover plate 1 is installed, a conductive frame 4 is arranged between the pressure release piece and the positive cover plate 1, the positive cover plate 1 of the battery is separated above the internal sealing space of the battery through the conductive frame 4, and the problem that the battery is broken because a battery top cover and an explosion-proof valve are in contact in the prior art is avoided.
This pressure release explosion-proof battery, including anodal apron 1, negative pole conflux piece 2, seal the sealing washer 3, electrically conductive frame 4 and pressure release piece, through arranging electrically conductive frame 4 between negative pole conflux piece 2 and anodal apron 1, pressure release piece is located the top of sealing the sealing washer 3 and negative pole conflux piece 2, the below of anodal apron 1, the positive pole apron 1 of battery is separated in the top of battery inner seal space through electrically conductive frame 4, the cooperation sets up pressure release piece includes pressure release main part 5 and the pressure release pipeline 51 with pressure release main part 5 intercommunication, pressure release pipeline 51 stretches out electrically conductive frame 4 by the sealed hole 40 on the electrically conductive frame 4, increase the pressure release piece at the lateral wall of battery, can carry out the pressure release to the battery through the pressure release piece, avoid the battery to appear the swell scheduling problem, the security of battery improves.
As an alternative implementation manner, fig. 4 is a schematic structural diagram of the conductive frame in this embodiment, and as shown in fig. 4, the conductive frame further includes a connection frame 6. Wherein, link 6 is connected on electrically conductive frame 4, and the bottom of link 6 and the contact of negative pole busbar piece 2, the bottom of link 6 sets up a plurality of open slots 60.
Specifically, the connecting frame is welded to the bottom of the conductive frame 4, and a plurality of open grooves 60 are provided at the bottom of the connecting frame 6, and the open grooves 60 enable the connecting frame 6 to have elasticity as a whole and to be better contacted with the negative electrode bus bar 2.
In this embodiment, the connecting frame 6 is provided with a limiting structure 61. The limiting structure 61 is arranged on the periphery of the connecting frame 6, a clamping angle 62 is arranged between the limiting structure 61 and the connecting frame 6, and the clamping angle 62 is matched with the first included angle 21 on the negative electrode busbar 2.
Wherein, limit structure 61 adopts annular spacing ring, and the spacing ring welds in the outside of link 6. And the included angle between the limiting ring and the connecting frame 6 is a clamping angle 62, and is matched with the included angle formed between the top surface and the inner side of the negative electrode busbar 2, namely a first included angle 21, so that the positioning can be quickly performed during installation.
Through setting up the upwards top that extends limit structure 61 of open slot 60, realize gaseous switching on, when the internal atmospheric pressure of battery is higher, the hole on its inside gas through negative pole confluence piece 2 surface and the hole on electrically conductive frame 4 surface can reach the position of pressure release piece, carries out the pressure release operation through the pressure release piece, reduces the battery and appears the problem such as swell, battery explosion.
As an alternative embodiment, fig. 5 is an enlarged schematic view of the pressure release member in this embodiment, and as shown in fig. 5, the pressure release main body 5 includes a cavity 50, and a sliding plug 52 is disposed in the cavity 50.
Wherein, one side of the sliding plug 52 is a sealing end 501 of the cavity 50, and the other side of the sliding plug 52 is an opening end 502 of the cavity 50; the pressure relief pipeline 51 is communicated with the cavity 50.
Specifically, the pressure release body 5 further includes a sliding post 53 and an open frame 54. One end of the sliding column 53 is connected to the sliding plug 52, and the sliding column 53 extends out of the cavity 50 from the opening end 502; an opening bracket 54 is connected to the other end of the sliding column 53. Wherein, the open end 502 is provided with an aluminum film 55, and the surface of the aluminum film 55 is provided with a scoring groove 550.
The working principle of this embodiment is that the cavity 50 is connected with the pressure release pipeline 51, when the internal air pressure of the battery is larger in the use process of the battery, in this embodiment, when the internal air pressure of the battery is larger than 1.2mpa, the lower cavity of the conductive frame 4 is filled with the gas in the battery, when the internal air pressure of the battery is larger, the notch groove 550 is broken by the gas, the sliding plug 52 is pushed to slide towards the sliding seal end 501, and meanwhile, the gas is released through the pressure release pipeline 51.
Specifically, fig. 6 is a schematic structural view of the aluminum film in this embodiment, and as shown in fig. 6, the score line has a cross-shaped structure, and the opening frame 54 has a circular or cross-shaped structure.
The outside of the slide plug 52 is connected to the open frame 54 through the slide post 53 by providing a score groove 550 on the surface of the aluminum film 55 in a cross shape. The opening frame 54 may be circular or crisscross with the score groove 550, and along with the sliding of the sliding plug 52, the opening frame 54 pushes the aluminum film 55 to break open rapidly, and the gas inside the battery enters the cavity 50 through the aluminum film 55 and is led out through the pressure release pipeline 51, so as to realize pressure release of the battery and reduce the bulge of the battery.
As an alternative embodiment, the pressure release member is made of transparent material. In this embodiment, the cavity 50 of the pressure relief member, especially the pressure relief main body 5, is made of transparent material, and in practical use, the cavity 50 may be square, round or other regular or irregular structures, and fig. 7 is a schematic structural diagram of the cavity with a square structure, as shown in fig. 7, if the cavity 50 adopts a square structure, the single side size is not less than 2mm.
Specifically, when the gas pressure inside the battery is large, the gas breaks through the notch groove to push the sliding plug to slide towards the sealing end 501, and the color card 56 is close to the transparent sealing end, so that the color of the color card 56 can be seen outside the battery, and a user can be reminded. Namely, after the pressure of the battery is relieved, a user can observe the internal condition of the battery from the outside so as to be convenient to replace in time, and the safety of the battery is improved.
As an alternative embodiment, the sealing end 501 is a continuous concave-convex surface, and the surface of the color card 56 is a concave-convex structure corresponding to the sealing end 501.
Specifically, in this embodiment, a continuous concave-convex surface is disposed on the end surface of the sealing end 501 inside the cavity 50, and the surface of the color card 56 corresponds to the surface, so that when the sliding plug 52 is far away from the sealing end 501, light cannot enter and reflect, and a user cannot observe the color inside the cavity 50 from the outside, and when the color card 56 approaches the sealing end 501, the user can observe the color inside the cavity 50 from the outside of the battery, so that the reminding effect can be achieved, and the use safety of the battery is ensured.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a pressure release explosion-proof battery which characterized in that, includes positive pole apron, negative pole confluence piece, seals sealing washer, electrically conductive frame and pressure release piece, wherein:
the sealing ring is arranged on the periphery of the negative electrode bus piece, the conducting frame is arranged between the negative electrode bus piece and the positive electrode cover plate, and a sealing hole is formed in the conducting frame;
the pressure relief piece set up in the negative pole is converged the piece with seal the top of sealing washer, the pressure relief piece include the pressure relief main part with the pressure relief pipeline of pressure relief main part intercommunication, the pressure relief pipeline is followed the sealed hole stretches out electrically conductive frame.
2. The pressure relief explosion-proof battery of claim 1, wherein: still include the link, wherein:
the connecting frame is connected to the conducting frame, the bottom of the connecting frame is in contact with the negative electrode busbar, and a plurality of open grooves are formed in the bottom of the connecting frame.
3. The pressure relief explosion-proof battery of claim 2, wherein: set up limit structure on the link, wherein:
the limiting structure is arranged on the periphery of the connecting frame, a clamping angle is arranged between the limiting structure and the connecting frame, and the clamping angle is matched with a first included angle on the negative electrode confluence sheet;
the open slot extends upwards to the upper side of the limiting structure.
4. A pressure relief explosion proof battery as claimed in any one of claims 1 to 3, wherein: the pressure release main part includes the cavity, set up the slide plug in the cavity, wherein:
one side of the sliding plug is a sealing end of the cavity, and the other side of the sliding plug is an opening end of the cavity;
the pressure relief pipeline is communicated with the cavity.
5. The pressure relief explosion-proof battery as set forth in claim 4, wherein: the pressure relief body further comprises a sliding column and an opening frame, wherein:
one end of the sliding column is connected to the sliding column, and the sliding column extends out of the cavity from the opening end;
the opening frame is connected to the other end of the sliding column.
6. The pressure relief explosion-proof battery as set forth in claim 5, wherein: the open end is provided with an aluminum film, and the surface of the aluminum film is provided with a notch groove.
7. The pressure relief explosion-proof battery of claim 6, wherein: the scoring groove adopts a cross-shaped structure, and the opening frame is of a round or cross-shaped structure.
8. The pressure relief explosion-proof battery as set forth in claim 4, wherein: the pressure release piece is made of transparent materials.
9. The pressure relief explosion-proof battery of claim 8, wherein: and the end face, close to the sealing end, of the sliding plug is provided with a color card.
10. The pressure relief explosion-proof battery of claim 9, wherein: the sealing end adopts a continuous concave-convex surface, and the color card surface adopts a concave-convex structure corresponding to the sealing end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457086.1U CN220122030U (en) | 2023-06-08 | 2023-06-08 | Pressure relief explosion-proof battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457086.1U CN220122030U (en) | 2023-06-08 | 2023-06-08 | Pressure relief explosion-proof battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220122030U true CN220122030U (en) | 2023-12-01 |
Family
ID=88894906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321457086.1U Active CN220122030U (en) | 2023-06-08 | 2023-06-08 | Pressure relief explosion-proof battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220122030U (en) |
-
2023
- 2023-06-08 CN CN202321457086.1U patent/CN220122030U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |