CN113543543B - Lithium battery test explosion-proof device - Google Patents
Lithium battery test explosion-proof device Download PDFInfo
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- CN113543543B CN113543543B CN202110625364.9A CN202110625364A CN113543543B CN 113543543 B CN113543543 B CN 113543543B CN 202110625364 A CN202110625364 A CN 202110625364A CN 113543543 B CN113543543 B CN 113543543B
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- lithium battery
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- proof device
- battery test
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 86
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000001681 protective effect Effects 0.000 claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000004880 explosion Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 239000002360 explosive Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- 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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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an explosion-proof device for a lithium battery test, which comprises the explosion-proof device for the lithium battery test, a placing plate, a protective shell, two limiting mechanisms, a lifting mechanism and an adjusting mechanism, wherein the placing plate is positioned inside the explosion-proof device for the lithium battery test, the protective shell is positioned at the top of the placing plate, and the two limiting mechanisms are respectively positioned at two sides of the protective shell. According to the lithium battery explosion-proof device, the protective shell, the lifting mechanism and the adjusting mechanism are matched for use, so that the lithium battery can explode in the protective shell, the protective shell performs primary protection, meanwhile, the protective shell has the advantage of convenience in replacement, the cost is low, the lifting mechanism and the adjusting mechanism can push the lifting mechanism and the adjusting mechanism by the lithium battery when the lithium battery expands, a tester can conveniently observe the lithium battery outside the lithium battery test explosion-proof device, and the problems that the explosion-proof device is easily damaged by explosion of the existing lithium battery and the size of the lithium battery cannot be measured when the lithium battery expands are solved.
Description
Technical Field
The invention belongs to the technical field of lithium battery explosion-proof devices, and particularly relates to a lithium battery test explosion-proof device.
Background
The lithium cell need carry out each item experiment to the lithium cell in process of production, need use explosion-proof equipment when the lithium cell is experimental, and the problem that prior art exists is: although the explosion-proof device for the lithium battery test has an explosion-proof effect, the steel plate is fully distributed inside, but the steel plate still can be damaged during the explosion of the lithium battery test, long-time test can lead to the internal damage of the lithium battery explosion-proof device, but inconvenient change after the damage, can only change the whole equipment, and simultaneously when the battery is tested, the battery can generate certain expansion, but because of safety consideration, the size of the expansion can not be measured, therefore, the lithium battery can not measure the expansion under specific temperature, and the problem of inaccurate test data is caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an explosion-proof device for a lithium battery test, which has the advantages of primary explosion prevention and observation of expansion size, and solves the problems that the explosion-proof device is easy to damage due to explosion of the conventional lithium battery and the size of the lithium battery cannot be measured during expansion.
The lithium battery test explosion-proof device comprises a lithium battery test explosion-proof device, a placing plate, a protective shell, two limiting mechanisms, a lifting mechanism and an adjusting mechanism, wherein the placing plate is positioned inside the lithium battery test explosion-proof device, the protective shell is positioned at the top of the placing plate, and the two limiting mechanisms are respectively positioned on two sides of the protective shell and fixedly connected with the inside of the lithium battery test explosion-proof device;
the lifting mechanism and the adjusting mechanism are both positioned inside the protective shell, the lifting mechanism is positioned at the top of the adjusting mechanism, the top of the lifting mechanism penetrates through the protective shell and extends to the top of the protective shell, and the front side and the rear side of the adjusting mechanism both penetrate through the outer side of the protective shell;
the front side and the rear side of the protective shell are both provided with through holes, the two sides of the protective shell are both provided with first openings, the bottom of the protective shell is in contact with the top of the placing plate, and the top of the protective shell is provided with an annular vent hole.
Preferably, the limiting mechanism comprises a limiting plate, two limiting blocks and a limiting groove, the limiting groove is formed in the surface of the limiting plate, the bottom of the limiting plate is fixedly connected with the interior of the lithium battery test explosion-proof device, the limiting blocks are located on the front side and the rear side of the interior of the limiting groove, and one side, close to the protective shell, of the limiting block is fixedly connected with the surface of the protective shell.
Preferably, the lifting mechanism comprises a lifting plate, a fixing column and a lifting handle, the lifting plate and the fixing column are located inside the protective shell, the top of the lifting plate is fixedly connected with the bottom of the fixing column, the top of the fixing column penetrates through the protective shell and extends to the top of the protective shell, the top of the fixing column is fixedly connected with the bottom of the lifting handle, and a second opening is formed in the surface of the lifting plate.
Preferably, the adjusting mechanism comprises a third opening, an adjusting rod and four fixing blocks, the third opening is formed in the bottom of the front side and the bottom of the rear side of the protective shell respectively, the adjusting rod is located inside the protective shell, the front side and the rear side of the adjusting rod penetrate through the third opening and extend to the outer side of the protective shell, the four fixing blocks are distributed on the front side and the rear side of the adjusting rod in pairs, and the surfaces of the fixing blocks are matched with the surface of the protective shell.
Preferably, the number of the through holes is several, the through holes are uniformly distributed on the front side and the rear side of the protective shell, and the through holes are matched with the first opening and the annular vent hole for use.
Preferably, the number of the first openings is three, the first openings are evenly distributed on two sides of the protective shell, and the second openings are respectively matched with the first openings, the through holes and the annular vent holes.
Preferably, the two sides of the top of the placing plate are fixedly connected with fixing rods, and the surfaces of the fixing rods are in contact with the inner wall of the protective shell.
Preferably, the annular vent holes are distributed at the top of the protective shell in a hollowed-out manner, the fixing column is located at the center of the annular vent hole, and the annular vent holes and the second openings are distributed in a staggered manner.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the lithium battery explosion-proof device, the protective shell, the lifting mechanism and the adjusting mechanism are matched for use, so that the lithium battery can explode in the protective shell, the protective shell performs primary protection, meanwhile, the protective shell has the advantage of convenience in replacement, the cost is low, the lifting mechanism and the adjusting mechanism can push the lifting mechanism and the adjusting mechanism by the lithium battery when the lithium battery expands, a tester can conveniently observe the lithium battery outside the lithium battery test explosion-proof device, and the problems that the explosion-proof device is easily damaged by explosion of the existing lithium battery and the size of the lithium battery cannot be measured when the lithium battery expands are solved.
2. According to the lithium battery test explosion-proof device, the limiting mechanism is arranged, the limiting plate can be fixed inside the lithium battery test explosion-proof device, the limiting block is clamped in the limiting groove in the limiting plate, then the protective shell is clamped at the top of the placing plate and pushed backwards, and the purpose of limiting and fixing the protective shell is achieved.
3. According to the invention, the lifting mechanism is arranged, so that the lifting plate can be pushed when the lithium battery expands, the lifting plate drives the fixing column to move upwards, a user can judge the expansion size of the lithium battery according to the extending length of the fixing column, and meanwhile, the surface of the lifting plate is provided with the second opening, so that the shock wave after the lithium battery explodes can be preliminarily released, and the pressure is outwards released.
4. According to the invention, by arranging the adjusting mechanism, one side of the adjusting rod can be contacted with the lithium battery, and when the lithium battery expands, the adjusting rod is abutted, so that the purpose of measurement is achieved according to the matching use of the adjusting rod and the lifting mechanism.
5. According to the invention, through the arrangement of the through hole, the impact force generated when the lithium battery explodes can be released, and the through hole can shield the explosive impurities of the lithium battery, so that the explosive is prevented from colliding with the inside of the lithium battery test explosion-proof device.
6. According to the invention, the first opening is arranged, so that impact force can be better dispersed to two sides and matched with the through hole, impact of the impact force to the front side and the rear side can be reduced, and the service life of the equipment is prolonged.
7. According to the invention, the fixing rod is arranged, so that the protective shell can be limited, the shaking of the protective shell is reduced, and the protective shell can be better clamped with the placing plate.
8. According to the invention, through the arrangement of the annular vent hole, the shock wave can be discharged outwards from the space between the second opening and the annular vent hole through the matching use of the second opening, meanwhile, debris generated by explosion is shielded, and the safety is improved.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;
FIG. 2 is a perspective view of a placement board provided by an embodiment of the present invention;
FIG. 3 is a front cross-sectional view of a placement board provided in accordance with an embodiment of the present invention;
FIG. 4 is a perspective view of a lift mechanism provided in accordance with an embodiment of the present invention;
FIG. 5 is a perspective view of an adjustment lever and a fixed block provided by an embodiment of the present invention;
fig. 6 is an enlarged view of a portion a of fig. 2 according to an embodiment of the present invention.
In the figure: 1. a lithium battery test explosion-proof device; 2. placing the plate; 3. a protective shell; 4. a limiting mechanism; 401. a limiting plate; 402. a limiting block; 403. a limiting groove; 5. a lifting mechanism; 501. a lifting plate; 502. fixing a column; 503. a handle; 504. a second opening; 6. an adjustment mechanism; 601. a third opening; 602. adjusting a rod; 603. a fixed block; 7. a through hole; 8. a first opening; 9. an annular vent hole; 10. and (5) fixing the rod.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the lithium battery test explosion-proof device provided by the embodiment of the invention comprises a lithium battery test explosion-proof device 1, a placing plate 2, a protective shell 3, two limiting mechanisms 4, a lifting mechanism 5 and an adjusting mechanism 6, wherein the placing plate 2 is located inside the lithium battery test explosion-proof device 1, the protective shell 3 is located at the top of the placing plate 2, and the two limiting mechanisms 4 are respectively located at two sides of the protective shell 3 and fixedly connected with the inside of the lithium battery test explosion-proof device 1;
the lifting mechanism 5 and the adjusting mechanism 6 are both positioned inside the protective shell 3, the lifting mechanism 5 is positioned at the top of the adjusting mechanism 6, the top of the lifting mechanism 5 penetrates through the protective shell 3 and extends to the top of the protective shell 3, and the front side and the rear side of the adjusting mechanism 6 both penetrate through the outer side of the protective shell 3;
through-hole 7 has all been seted up to the front side and the rear side of protecting crust 3, and first opening 8 has all been seted up to the both sides of protecting crust 3, the bottom of protecting crust 3 and the top contact of placing board 2, annular air vent 9 has been seted up at the top of protecting crust 3.
Referring to fig. 3, the limiting mechanism 4 includes a limiting plate 401, two limiting blocks 402 and a limiting groove 403, the limiting groove 403 is provided on the surface of the limiting plate 401, the bottom of the limiting plate 401 is fixedly connected with the inside of the lithium battery test explosion-proof device 1, the limiting blocks 402 are located on the front side and the rear side inside the limiting groove 403, and one side of the limiting blocks 402 close to the protective shell 3 is fixedly connected with the surface of the protective shell 3.
Adopt above-mentioned scheme: through setting up stop gear 4, can be through fixing limiting plate 401 in the inside of lithium battery test explosion-proof equipment 1, stopper 402 card is in limiting groove 403 of limiting plate 401 inside, then with protective housing 3 card at the top of placing board 2, push away after, reach and carry out spacing fixed purpose to protective housing 3.
Referring to fig. 4, the lifting mechanism 5 includes a lifting plate 501, a fixing column 502 and a handle 503, the lifting plate 501 and the fixing column 502 are both located inside the protective shell 3, the top of the lifting plate 501 is fixedly connected to the bottom of the fixing column 502, the top of the fixing column 502 penetrates through the protective shell 3 and extends to the top of the protective shell 3, the top of the fixing column 502 is fixedly connected to the bottom of the handle 503, and a second opening 504 is formed in the surface of the lifting plate 501.
Adopt above-mentioned scheme: through setting up elevating system 5, can promote lifter plate 501 when the lithium cell inflation, lifter plate 501 drives fixed column 502 rebound, and the user can judge the inflation size of lithium cell according to the length that fixed column 502 stretches out, simultaneously because second opening 504 has been seted up on lifter plate 501's surface, can carry out preliminary release when the shock wave after the lithium cell explosion, outwards releases pressure.
Referring to fig. 3, the adjusting mechanism 6 includes a third opening 601, an adjusting rod 602, and four fixing blocks 603, the third opening 601 is respectively opened at the bottom of the front side and the bottom of the rear side of the protective shell 3, the adjusting rod 602 is located inside the protective shell 3, the front side and the rear side of the adjusting rod 602 both extend from the third opening 601 to the outside of the protective shell 3, the four fixing blocks 603 are distributed on the front side and the rear side of the adjusting rod 602 two by two, and the surfaces of the fixing blocks 603 are matched with the surface of the protective shell 3.
Adopt above-mentioned scheme: through setting up adjustment mechanism 6, can be with adjusting one side and the lithium cell contact of pole 602, when the lithium cell inflation, support and adjust pole 602, use according to the cooperation with elevating system 5, reach the measuring purpose.
Referring to fig. 2, the number of the through holes 7 is several, and the through holes 7 are uniformly distributed on the front side and the rear side of the protective shell 3, and the through holes 7 are used in cooperation with the first opening 8 and the annular vent hole 9.
The scheme is adopted: through setting up through-hole 7, impact force when can be to the lithium cell explosion releases, and through-hole 7 can shelter from the impurity of the explosion of lithium cell, avoids the explosive to strike with the inside of the experimental explosion-proof equipment 1 of lithium cell.
Referring to fig. 2 and 3, the number of the first openings 8 is three, and the first openings are uniformly distributed on two sides of the protective shell 3, and the second openings 504 are respectively used in cooperation with the first openings 8, the through holes 7 and the annular vent holes 9.
The scheme is adopted: through setting up first opening 8, can be with better scattering to both sides of impact force, with through-hole 7 cooperation, can reduce the impact of impact force to both sides around, increase the life of equipment.
Referring to fig. 3 and 4, fixing rods 10 are fixedly connected to both sides of the top of the placing plate 2, and the surfaces of the fixing rods 10 are in contact with the inner wall of the protective case 3.
The scheme is adopted: through setting up dead lever 10, can play limiting displacement to protecting crust 3, reduce rocking of protecting crust 3, make protecting crust 3 better and place board 2 and carry out the chucking.
Referring to fig. 2, the annular vent holes 9 are distributed on the top of the protection housing 3 in a hollow manner, the fixing posts 502 are located at the center of the annular vent holes 9, and the annular vent holes 9 and the second openings 504 are distributed in a staggered manner.
Adopt above-mentioned scheme: through setting up annular air vent 9, can be through the cooperation in second opening 504 and use, make the shock wave outwards arrange from between second opening 504 and the annular air vent 9, shelter from the piece that the explosion produced simultaneously, increased the security.
The working principle of the invention is as follows:
when the lithium battery explosion-proof device is used, when a user needs to test, the lithium battery is placed on the placing plate 2, the protecting shell 3 is moved downwards, the protecting shell 3 is clamped on the surface of the fixing rod 10, the bottom of the protecting shell 3 is in contact with the top of the placing plate 2, meanwhile, the protecting shell 3 drives the limiting block 402 to move downwards, when the limiting block 402 is level with the limiting groove 403, the protecting shell 3 is moved backwards and the placing plate 2 is moved, the limiting block 402 is clamped inside the limiting groove 403 and is fixed, the adjusting rod 602 is moved leftwards simultaneously, the left side of the adjusting rod 602 is abutted to the surface of the lithium battery, the lifting plate 501 presses the surface of the lithium battery due to gravity, when the lithium battery expands and other conditions occur, the lithium battery respectively abuts against the lifting plate 501 and the adjusting rod 602 to move, the lifting plate 501 drives the fixing column 502 to move, an operator observes the positions of the fixing column 502 and the adjusting rod 602, namely, experimental data can be obtained, when the lithium battery explodes, the shock waves of the explosion pass through the through hole 7, the first opening 8, the second opening 504 and the annular vent hole 9 are discharged, meanwhile, blocking of explosive debris is realized, and the debris of the lithium battery explosion-proof device 1 is prevented from being damaged.
In conclusion: this experimental explosion-proof equipment of lithium cell, through setting up experimental explosion-proof equipment 1 of lithium cell, place board 2, protecting crust 3, stop gear 4, limiting plate 401, stopper 402, spacing recess 403, elevating system 5, lifter plate 501, fixed column 502, handle 503, second opening 504, adjustment mechanism 6, third opening 601, adjust pole 602, fixed block 603, through-hole 7, first opening 8, the cooperation of annular air vent 9 and dead lever 10 is used, the problem of current lithium cell explosion damage explosion-proof equipment easily and lithium cell size unable measurement when the inflation has been solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a lithium battery test explosion-proof equipment, includes lithium battery test explosion-proof equipment (1), places board (2), protecting crust (3), two stop gear (4), elevating system (5) and adjustment mechanism (6), its characterized in that: the placing plate (2) is positioned inside the lithium battery test explosion-proof device (1), the protective shell (3) is positioned at the top of the placing plate (2), and the two limiting mechanisms (4) are respectively positioned at two sides of the protective shell (3) and fixedly connected with the inside of the lithium battery test explosion-proof device (1);
the lifting mechanism (5) and the adjusting mechanism (6) are both located inside the protective shell (3), the lifting mechanism (5) is located at the top of the adjusting mechanism (6), the top of the lifting mechanism (5) penetrates through the protective shell (3) and extends to the top of the protective shell (3), and the front side and the rear side of the adjusting mechanism (6) both penetrate through the outer side of the protective shell (3);
the front side and the rear side of the protective shell (3) are both provided with through holes (7), the two sides of the protective shell (3) are both provided with first openings (8), the bottom of the protective shell (3) is in contact with the top of the placing plate (2), and the top of the protective shell (3) is provided with an annular vent hole (9);
the limiting mechanism (4) comprises a limiting plate (401), two limiting blocks (402) and a limiting groove (403), the limiting groove (403) is formed in the surface of the limiting plate (401), the bottom of the limiting plate (401) is fixedly connected with the inside of the lithium battery test explosion-proof device (1), the limiting blocks (402) are located on the front side and the rear side of the inside of the limiting groove (403), and one side, close to the protective shell (3), of each limiting block (402) is fixedly connected with the surface of the protective shell (3);
the lifting mechanism (5) comprises a lifting plate (501), a fixing column (502) and a lifting handle (503), the lifting plate (501) and the fixing column (502) are located inside the protective shell (3), the top of the lifting plate (501) is fixedly connected with the bottom of the fixing column (502), the top of the fixing column (502) penetrates through the protective shell (3) and extends to the top of the protective shell (3), the top of the fixing column (502) is fixedly connected with the bottom of the lifting handle (503), and a second opening (504) is formed in the surface of the lifting plate (501);
adjustment mechanism (6) include third opening (601), adjust pole (602) and four fixed block (603), the bottom at protecting crust (3) front side and rear side is seted up respectively in third opening (601), it is located the inside of protecting crust (3) to adjust pole (602), the outside that extends to protecting crust (3) is all run through from third opening (601) to the front side and the rear side of adjusting pole (602), four fixed block (603) two double-phase distribution is in the front side and the rear side of adjusting pole (602), and the surface of fixed block (603) uses with the surface coordination of protecting crust (3).
2. The lithium battery test explosion-proof device as claimed in claim 1, wherein: the number of through-hole (7) is a plurality of, and evenly distributed and the front side and the rear side of protecting crust (3), through-hole (7) and first opening (8) and annular air vent (9) cooperation are used.
3. The lithium battery test explosion-proof device as claimed in claim 1, wherein: the number of the first openings (8) is three, the first openings are evenly distributed on two sides of the protective shell (3), and the second openings (504) are matched with the first openings (8), the through holes (7) and the annular vent holes (9) respectively.
4. The lithium battery test explosion-proof device as claimed in claim 1, wherein: the two sides of the top of the placing plate (2) are fixedly connected with fixing rods (10), and the surfaces of the fixing rods (10) are in contact with the inner wall of the protective shell (3).
5. The lithium battery test explosion-proof device as claimed in claim 1, wherein: the annular vent holes (9) are distributed at the top of the protective shell (3) in a hollowed-out mode, the fixing columns (502) are located at the centers of the annular vent holes (9), and the annular vent holes (9) and the second openings (504) are distributed in a staggered mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110625364.9A CN113543543B (en) | 2021-06-04 | 2021-06-04 | Lithium battery test explosion-proof device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110625364.9A CN113543543B (en) | 2021-06-04 | 2021-06-04 | Lithium battery test explosion-proof device |
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| CN113543543A CN113543543A (en) | 2021-10-22 |
| CN113543543B true CN113543543B (en) | 2023-03-31 |
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Denomination of invention: An explosion-proof device for lithium battery testing Effective date of registration: 20230426 Granted publication date: 20230331 Pledgee: Industrial and Commercial Bank of China Limited Guzhen Branch Pledgor: ANHUI QIANHANG NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2023980039309 |
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Address after: 233000 building 27, Hefei Industrial Investment SME industrial park, Longzihu District, Bengbu City, Anhui Province Patentee after: Anhui Qianhang New Energy Technology Co.,Ltd. Country or region after: China Address before: 233000 building 27, Hefei Industrial Investment SME industrial park, Longzihu District, Bengbu City, Anhui Province Patentee before: ANHUI QIANHANG NEW ENERGY TECHNOLOGY CO.,LTD. Country or region before: China |