CN116742266A - Explosion-proof device for long-life power battery - Google Patents
Explosion-proof device for long-life power battery Download PDFInfo
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- CN116742266A CN116742266A CN202310587080.4A CN202310587080A CN116742266A CN 116742266 A CN116742266 A CN 116742266A CN 202310587080 A CN202310587080 A CN 202310587080A CN 116742266 A CN116742266 A CN 116742266A
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- explosion
- proof
- inner shell
- shell
- battery body
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- 239000000110 cooling liquid Substances 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000004880 explosion Methods 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 9
- 239000002826 coolant Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 11
- 230000006837 decompression Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The application relates to the technical field of power batteries, in particular to an explosion-proof device for a long-life power battery; the explosion-proof battery comprises a battery body and a box-type explosion-proof shell, wherein an inner shell coaxial with the battery body is arranged on the inner side of the explosion-proof shell, a cavity is formed between the inner shell and the explosion-proof shell, the inner shell is connected with the explosion-proof shell through a connecting rod, a supporting component is arranged between the battery body and the inner shell, the supporting component is of a structure with holes, a pressure relief component is further arranged between the inner shell and the explosion-proof shell, when the battery body is in a vacuum state in use, when the battery body is heated and pressurized, the supporting component is beneficial to external cooling liquid to wrap the battery body for cooling, and when electrolyte leakage occurs in the pressurization of the battery body, the pressure inside the inner shell is dispersed through the pressure relief component to prevent explosion; according to the application, the explosion prevention is carried out in a mode of synchronously cooling and pressure relief, so that the pressure relief effect is ensured, the deformation and leakage of the battery body caused by overhigh temperature can be effectively prevented, and the safety performance of the battery is further improved.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to an explosion-proof device for a long-life power battery.
Background
The power battery provides a power source for the tool, the utilization rate of the new energy vehicle is improved along with the enhancement of environmental awareness of people, and the explosion-proof device is generally arranged on the power battery of the new energy vehicle to ensure the safety performance of the new energy vehicle and prevent safety accidents; the explosion-proof device of the existing power battery adopts a needling explosion-proof membrane to puncture the effect poorly and burst and boost inconsistent, pressure release hysteresis occurs easily, and an authorized publication number CN106784517B discloses a battery explosion-proof device, which adopts a fusing block to fuse and release pressure through an isolation cavity, but the explosion-proof device is mostly accompanied with temperature rise in the process of boosting the power battery and is easy to leak liquid, and the device cannot cool the battery body and prevent leakage of electrolyte, so that the explosion-proof device which can release pressure and prevent explosion and cool the battery body is needed.
Disclosure of Invention
The application provides an explosion-proof device for a long-life power battery, which aims to solve the problems that the puncture effect is poor, the explosion pressurization is inconsistent, the pressure release is lagged easily, the battery body cannot be cooled, the leakage of electrolyte is prevented and the like in the prior art.
The technical scheme of the application is as follows:
the application provides an explosion-proof device for a long-life power battery, which comprises a battery body and a box-type explosion-proof shell, wherein an inner shell coaxial with the battery body is arranged on the inner side of the explosion-proof shell, a cavity is formed between the inner shell and the explosion-proof shell, the inner shell is connected with the explosion-proof shell through a connecting rod, a supporting component is arranged between the battery body and the inner shell and is of a structure with holes, a pressure relief component is also arranged between the inner shell and the explosion-proof shell, when the battery body is heated and pressurized, the cavity is in a vacuum state, when the battery body is heated and pressurized, the supporting component is favorable for external cooling liquid to wrap the battery body, and when electrolyte leakage occurs in the pressurization of the battery body, the pressure on the inner side of the inner shell is dispersed through the pressure relief component to prevent explosion.
Further, the pressure release subassembly includes the through-hole, the several horizontally through-hole is offered all around to the inner shell, the explosion-proof diaphragm of the equal fixed mounting metal in the inner outside of through-hole, the equal fixed mounting of outer outside of through-hole is violently managed, all be equipped with the piston piece rather than sealing contact complex in the violently intraductal, be connected through several push rods between explosion-proof diaphragm and the piston piece, one side middle part fixed mounting many arriss blade that the through-hole was kept away from to the piston piece, violently pipe periphery sealing encapsulation sleeve pipe, the one end fixed mounting sealing washer that the sleeve pipe is close to the inner shell, the operation hole with the through-hole one-to-one is offered in the explosion-proof casing outside, be equipped with the closing cap with it sealing complex in the operation hole outside, the one side that the closing cap is close to the inner shell is equal fixed mounting several connecting rod, the sleeve pipe outer periphery that the free end fixed connection corresponds of connecting rod, sleeve pipe outer end fixed mounting sealing membrane.
Further, the support assembly is a rectangular support net rack, and the support net rack is made of metal materials.
Further, the first draw-in groove is all offered to six sides of battery body, and the second draw-in groove with first draw-in groove one-to-one is all offered to the inside wall of inner shell, when using, support rack clamping and first draw-in groove and second draw-in groove inboard.
Further, the explosion-proof shell is provided with a common vertical pipe with the top surface of the inner shell, the vertical pipe is communicated with the inner side of the inner shell, the outer side of the explosion-proof shell is provided with a box body for containing cooling liquid, the box body is internally provided with cooling liquid, the top surface of the box body is provided with a pump body communicated with the inner part, the outlet end of the pump body is connected with the upper end of the vertical pipe through a first connecting pipe, the middle part of the first connecting pipe is also provided with a detection module for testing the pressure in the inner shell, and the detection module is electrically connected with the pump body.
Further, a common liquid outlet pipe is arranged between the explosion-proof shell and the inner shell, the inner end of the liquid outlet pipe is communicated with the inner part of the inner shell, and the outer end of the liquid outlet pipe is connected with a second connecting pipe to be fixedly connected with the box body and communicated with the box body; one side of the box body is also provided with a standby box connected with the box body through a pressure valve, and the standby box is filled with cooling liquid.
The beneficial effects achieved by the application are as follows:
according to the application, by means of matching the explosion-proof membrane with the sealing membrane, the phenomenon that the explosion-proof membrane is deformed unevenly due to uneven pressure in the inner shell when the battery body is pressurized is utilized, the sealing membrane is torn by utilizing the irregular deformation of the explosion-proof membrane to push the multi-edge blade, so that the cavity is communicated with the inner side of the inner shell for decompression, meanwhile, the pressure of the inner side of the inner shell is detected through the detection module, when the internal pressure is increased, a cooling liquid is pumped into the inner side of the inner shell through the pump body for physical cooling of the periphery of the battery body, and explosion is carried out in a mode of synchronously carrying out cooling and decompression, so that the decompression effect is ensured, the deformation and leakage of the battery body due to overhigh temperature can be effectively prevented, and the safety performance of the battery is further improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present application.
Fig. 2 is a schematic view of the internal structure of the explosion-proof housing of the present application.
Fig. 3 is an enlarged view of the cross-sectional view taken along line A-A in fig. 2.
Fig. 4 is an enlarged view of a portion of i in fig. 2.
Fig. 5 is an enlarged view of a portion ii in fig. 3.
Detailed Description
In order to facilitate understanding of the application by those skilled in the art, a specific embodiment of the application is described below with reference to the accompanying drawings.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 5, the application provides an explosion-proof device for a long-life power battery, which comprises a battery body 1 and an explosion-proof shell 2, wherein the explosion-proof shell 2 adopts a box structure, an inner shell 3 coaxial with the explosion-proof shell 2 is arranged on the inner side of the explosion-proof shell 2, the inner shell 3 is connected with the explosion-proof shell 2 through a connecting rod 5, and the inner shell 3 and the explosion-proof shell 2 are supported and connected through the connecting rod 5; meanwhile, a cavity 4 is formed between the inner shell 3 and the explosion-proof shell 2, when the battery is used, the battery body 1 is arranged inside the inner shell 3, the top surfaces of the inner shell 3 and the explosion-proof shell 2 are respectively provided with a connecting structure (not shown in the figure) which is connected with a pole of the battery body 1, in production, the explosion-proof shell 2 and the inner shell 3 are uniformly divided into an upper part and a lower part, a complete double-layer box structure is formed by welding and the like, and the cavity 4 is in a vacuum state and has pressure difference with the inner side of the inner shell 3; meanwhile, a supporting component is arranged between the battery body 1 and the inner shell 3, and the supporting component is of a structure with holes, so that when the battery body 1 is pressurized, external cooling liquid is favorable for wrapping and cooling the battery body 1, and meanwhile, a pressure relief component is further arranged between the inner shell 3 and the explosion-proof shell 2, and when electrolyte leakage occurs in the pressurization of the battery body 1, the pressure inside the inner shell 3 is dispersed through the pressure relief component to prevent explosion.
The explosion-proof housing 2 is equipped with common standpipe 6 with the inner shell 3 top surface, standpipe 6 communicates with each other with the inner side of inner shell 3, explosion-proof housing 2 outside is equipped with a box 7 that holds the coolant liquid, all hold the coolant liquid in the box 7, the box 7 top surface be equipped with inside communicating pump body 9, the exit end of pump body 9 is connected through first connecting pipe 10 with standpipe 6 upper end, first connecting pipe 10 middle part still is equipped with the detection module 11 that tests the pressure in the inner shell 3, detection module 11 and pump body 9 electric connection, like this when detection module 11 detects battery body 1 outside temperature and pressure too high, pump body 9 work pumps the coolant liquid in the box 7 into the inner side of inner shell 3 through first connecting pipe 10, thereby make the coolant liquid cool down the battery body 1 outside and step down.
Meanwhile, in order to further improve the cooling and depressurization effects, a common liquid outlet pipe 12 is arranged between the explosion-proof shell 2 and the inner shell 3, the inner end of the liquid outlet pipe 12 is communicated with the inner shell 3, the outer end of the liquid outlet pipe 12 is connected with a second connecting pipe 13 to be fixedly connected with the box body 7 and communicated with the box body 7, meanwhile, one side of the box body 7 is also provided with a standby box 8 connected with the box body through a pressure valve, and cooling liquid is also contained in the standby box 8, as shown in fig. 1, when the battery body 1 in the inner shell 3 is pressurized, the cooling liquid in the box body 7 is pumped into the inner shell 3 through the pump body 9 to cool the periphery of the battery body 1 in the inner shell 3, meanwhile, when the pressure in the box body 7 is reduced under the action of the pump body 9, the pressure valve is opened to enable the cooling liquid in the standby box 8 to enter the box body 7, and the first connecting pipe 10, the vertical pipe 6, the inner shell 3, the liquid outlet pipe 12 and the second connecting pipe 13 form a circulation passage, so that the circulation cooling is performed.
One embodiment of the connecting assembly is a cuboid-shaped supporting grid 14, the supporting grid 14 is made of metal materials, first clamping grooves 16 are formed in six side faces of the battery body 1 for installation convenience, second clamping grooves 15 which are in one-to-one correspondence with the first clamping grooves 16 are formed in the inner side walls of the inner shell 3, as shown in fig. 5, when the connecting assembly is installed, the supporting grid 14 is clamped in the first clamping grooves 16 and the corresponding second clamping grooves 15, the supporting grid 14 can support the battery body 1, and meanwhile, when cooling liquid enters the inner shell 3, the cooling liquid can flow through the supporting grid 14; of course, embodiments of the connection assembly include, but are not limited to, the above-described approaches.
One implementation mode of the pressure relief assembly is that a plurality of horizontal through holes 17 are formed around the inner shell 3, metal explosion-proof diaphragms 18 are fixedly arranged on the outer sides of the inner ends of the through holes 17, and the explosion-proof diaphragms 18 deform to generate cracks when the pressure in the inner shell 3 is increased due to the pressurization of the battery body 1; the outer sides of the outer ends of the through holes 17 are fixedly provided with transverse pipes 19, piston blocks 20 in sealing contact fit with the transverse pipes 19 are arranged in the transverse pipes 19, the explosion-proof diaphragms 18 are connected with the piston blocks 20 through a plurality of push rods 21, a polygonal blade 22 is fixedly arranged in the middle of one side of each piston block 21 far away from the through holes 17, so that when the inner shell 3 is pressurized, the explosion-proof diaphragms 18 deform outwards to push the piston blocks 20 to move outwards through the push rods 21, and the outer ends of the piston blocks 20 are flush with the outer ends of the transverse pipes 19 in an initial state; the outer periphery of the transverse tube 19 is hermetically sleeved with a sleeve tube 23, one end of the sleeve tube 23 close to the inner shell 3 is fixedly provided with a sealing ring 24, in order to facilitate the installation of the sleeve tube 23 during production, the outer side of the explosion-proof shell 2 is provided with operation holes corresponding to the through holes 17 one by one, the outer side of the operation holes is internally provided with a sealing cover 25 in sealing fit with the operation holes, one side of the sealing cover 25 close to the inner shell 3 is fixedly provided with a plurality of connecting rods 26, the free ends of the connecting rods 26 are fixedly connected with the outer periphery of the corresponding sleeve tube 23, and the outer ends of the sleeve tubes 23 are fixedly provided with sealing films 27, so that the sleeve tube 23 is hermetically sleeved on the outer periphery of the corresponding transverse tube 19 through the sealing cover 25 and the connecting rods 26 during production, the inner side space of the transverse tube 19, the sleeve tube 23 and the sealing films 27 is sealed through the sealing rings 24, and then the cavity 4 is vacuumized, so that the outer side of the sealing films 27 is in a vacuum state, and the inner side pressure of the sealing films 27 is equal to the inner side pressure of the inner side of the inner shell 3; when the battery body 1 is pressurized and the pressure in the inner shell 3 is increased, and the explosion-proof membrane 18 deforms and gradually breaks, the push rods 21 at the outer sides of the explosion-proof membrane 18 push the piston blocks 20 to move outwards, and the polygonal blades 22 at the outer sides of the piston blocks 20 carry out multidirectional cutting and tearing on the sealing film 27 according to the movement of the push rods 21 due to different movement distances of the push rods 21, so that the inner shell 3 is communicated with the cavity 4 to play a role in pressure relief, and explosion caused by overhigh pressure in the inner shell 3 is prevented; other functionally equivalent structures are also possible in embodiments of the pressure relief assembly.
Working principle: in a normal state, the cavity 4 is vacuumized, the outer side of the sealing film 27 is vacuumized, and the pressure of the inner side of the sealing film 27 is equal to the pressure of the inner side of the inner shell 3; and the polygonal blades 22 are all positioned inside the corresponding sealing films 27; when the battery body 1 is heated and pressurized abnormally, as the pressurization of the battery body 1 is a slow accumulation process, the explosion-proof membrane 18 is gradually deformed and gradually cracked, the push rod 21 at the outer side of the explosion-proof membrane 18 pushes the piston block 20 to move outwards, and due to different moving distances of the push rods 21, the multi-edge blade 22 at the outer side of the piston block 20 performs multi-directional cutting and tearing on the sealing film 27 according to the movement of the push rod 21, so that the inner shell 3 is communicated with the cavity 4 to play a role in pressure relief, and when the detection module 11 detects the abnormality in the inner shell 3, the pump body 9 pumps the cooling liquid in the box body 7 into the inner shell 3, the cooling liquid entering the inner shell 3 spreads downwards from the upper part to the outer side of the battery pump body 1, meanwhile, due to pressure change in the box body 7, the pressure valve is opened, the cooling liquid in the standby box body 8 enters the box body 7, and the first connecting pipe 10, the vertical pipe 6, the inner shell 3 and the liquid outlet pipe 12 and the second connecting pipe 13 form a circulating passage, so that the circulating cooling is performed, the battery body 1 is placed to be cooled, and the electrolyte is prevented from leaking outwards.
The embodiments of the present application described above do not limit the scope of the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of the present application as set forth in the appended claims.
Claims (6)
1. An explosion-proof device for a long-life power battery is characterized in that: including the explosion-proof casing of battery body and box formula, explosion-proof casing inboard is equipped with the inner shell coaxial with it, forms the cavity between inner shell and the explosion-proof casing, is connected through the connecting rod between inner shell and the explosion-proof casing, is equipped with supporting component between battery body and the inner shell, and supporting component is for having the structure in hole, still is equipped with the pressure release subassembly between inner shell and the explosion-proof casing, and when using, the cavity is vacuum state, when the battery body takes place the intensification pressure boost, supporting component does benefit to outside coolant liquid and wraps up the cooling with the battery body, when the battery body pressure boost takes place electrolyte leakage, prevents the explosion through the inboard pressure of pressure release subassembly dispersion inner shell.
2. An explosion-proof device for a long life power battery according to claim 1, wherein: the pressure relief assembly comprises a through hole, a plurality of horizontal through holes are formed in the periphery of the inner shell, explosion-proof diaphragms of metal are fixedly mounted on the outer side of the inner end of the through hole, transverse pipes are fixedly mounted on the outer side of the outer end of the through hole, piston blocks in sealing contact with the explosion-proof diaphragms are arranged in the transverse pipes, the explosion-proof diaphragms are connected with the piston blocks through a plurality of push rods, a multi-edge blade is fixedly mounted on the middle of one side of each piston block away from the through hole, a sealing sleeve is tightly sleeved on the outer periphery of each transverse pipe, a sealing ring is fixedly mounted on one end of each sleeve close to the inner shell, operation holes corresponding to the through holes are formed in the outer side of each explosion-proof shell, sealing covers are fixedly mounted on the outer sides of the sealing covers close to the inner shell, a plurality of connecting rods are fixedly mounted on the outer peripheries of corresponding sleeves, and sealing films are fixedly mounted on the outer ends of the sleeves.
3. An explosion-proof device for a long life power battery according to claim 2, wherein: the support assembly is a rectangular support net rack, and the support net rack is made of metal materials.
4. An explosion-proof apparatus for a long life power battery according to claim 3, wherein: the battery body six sides all set up first draw-in groove, the second draw-in groove with first draw-in groove one-to-one is all seted up to the inside wall of inner shell, when using, support rack clamping and first draw-in groove and second draw-in groove inboard.
5. An explosion-proof apparatus for a long life power cell as defined in claim 4, wherein: the explosion-proof shell is provided with a common vertical pipe with the top surface of the inner shell, the vertical pipe is communicated with the inner side of the inner shell, the outer side of the explosion-proof shell is provided with a box body for containing cooling liquid, the box body is internally provided with cooling liquid, the top surface of the box body is provided with a pump body communicated with the inner part, the outlet end of the pump body is connected with the upper end of the vertical pipe through a first connecting pipe, the middle part of the first connecting pipe is also provided with a detection module for testing the pressure in the inner shell, and the detection module is electrically connected with the pump body.
6. An explosion-proof apparatus for a long life power cell as defined in claim 5, wherein: a common liquid outlet pipe is arranged between the explosion-proof shell and the inner shell, the inner end of the liquid outlet pipe is communicated with the inner part of the inner shell, and the outer end of the liquid outlet pipe is connected with a second connecting pipe to be fixedly connected with the box body and communicated with the box body; one side of the box body is also provided with a standby box connected with the box body through a pressure valve, and the standby box is filled with cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310587080.4A CN116742266A (en) | 2023-05-24 | 2023-05-24 | Explosion-proof device for long-life power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310587080.4A CN116742266A (en) | 2023-05-24 | 2023-05-24 | Explosion-proof device for long-life power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116742266A true CN116742266A (en) | 2023-09-12 |
Family
ID=87900297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310587080.4A Pending CN116742266A (en) | 2023-05-24 | 2023-05-24 | Explosion-proof device for long-life power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116742266A (en) |
-
2023
- 2023-05-24 CN CN202310587080.4A patent/CN116742266A/en active Pending
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