Puncture test tool for large cylindrical lithium battery

Abstract

The utility model provides a puncture test tool for a large cylindrical lithium battery, which relates to the technical field of battery test, and comprises a base and a working mechanism, a sealing cover is arranged at the top end of the base, the working mechanism is arranged at the top end of the base, and through the arrangement of the working mechanism, an ion type smoke detector detects the smoke condition of a working area. When smoke is detected, data are transmitted to the PLC, the PLC controls the exhaust fan to operate, harmful gas and smoke existing in a working area are rapidly sucked into the filtering and adsorbing box, in the filtering and adsorbing box, the harmful gas is firstly adsorbed and filtered through a molecular sieve, moisture and harmful gas in the gas are adsorbed, and the smoke is discharged from the filtering and adsorbing box. According to the utility model, the gas is filtered by the activated carbon filter plate, organic pollutants and other harmful substances in the gas are removed, and finally the filtered gas is discharged from the air outlet, so that the potential harm to the environment and operators is reduced, and the threat of the harmful gas to the health of the operators in the battery testing process is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, in particular to a needle-punching test tooling for large cylindrical lithium batteries. Background Art

[0002] A lithium battery is a battery that uses lithium metal or lithium alloy as the electrode material and uses a non-aqueous electrolyte solution. The invention and application of lithium batteries are a major breakthrough in battery technology. With their characteristics such as high energy density, long cycle life, and light weight, they have been widely used in many fields. The needle-punching test of large cylindrical lithium batteries is a safety performance test used to evaluate the reaction of the battery when it suffers from penetrating damage.

[0003] After retrieval, the text of the publication number "CN219475174U" mentions that "the utility model discloses a needle-punching test tooling for large cylindrical lithium batteries, belonging to the technical field of batteries, including a fixed base. The fixed base includes a bottom plate, one end of the bottom plate is vertically provided with a side plate, the bottom plate is provided with a safety valve avoidance hole at the end far from the side plate, the safety valve avoidance hole penetrates through the bottom plate, and a bevel structure is provided on the surface of the safety valve avoidance hole at the end of the bottom plate far from the side plate; a positioning member is provided at the angle between the bottom plate and the side plate, the positioning member is perpendicular to the bottom plate, and a positioning arc is provided on the surface of the end far from the side plate. A bevel structure is provided at the connection between the positioning arc and the positioning member. A strong magnetic installation hole is provided inside the positioning member, the strong magnetic installation hole is closely arranged against the positioning arc, and the inner surface of the positioning arc closely adheres to the large cylindrical lithium battery. The utility model is delicate and portable, occupies a small space, can switch the positioning member to be used for large cylindrical products of different sizes, does not require complex fixing assistance, has strong magnetic adsorption, improves efficiency, reduces operation time, and when performing the needle-punching test, the two ends of the large cylindrical lithium battery will not be blocked, and the test result will not be affected. However, when this tooling performs the needle-punching test, for products with poor design or lax quality control, it will cause internal short circuit of the battery. The short circuit will cause the electrolyte inside the battery to heat up rapidly, the pressure to rise, and finally the battery will burst, so that the harmful gases inside the battery will be released, resulting in poisoning of the operator or affecting their health.

[0004] Therefore, we provide a needle-punching test tooling for large cylindrical lithium batteries to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a needle-punching test tooling for large cylindrical lithium batteries to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a needle-punching test tooling for large cylindrical lithium batteries, including a base and a working mechanism. A sealing cover is installed at the top of the base, and a working mechanism is installed at the top of the base;

[0007] The working mechanism includes a monitoring component, a working component, an air extraction component, a filtering component, a regulation component, and a clamping component. The monitoring component is installed inside the sealing cover, the working component is installed on one side of the base, the air extraction component is installed on one side of the sealing cover, the filtering component is installed inside the air extraction component, the regulation component is installed on the surface of the base, and the clamping component is installed on one side of the regulation component.

[0008] Preferably, the monitoring component includes an ion type smoke detector and a PLC controller. The ion type smoke detector is installed inside the sealing cover, and the ion type smoke detector is electrically connected to the PLC controller on one side.

[0009] Preferably, the working component includes tempered glass, a control panel, and a needle-punching head. The tempered glass is rotatably connected to the outside of the sealing cover, the control panel is installed on the outside of the base, and the needle-punching head is inserted into the inside of the sealing cover.

[0010] Preferably, the air extraction component includes a filtering and adsorption box and an air extractor. The filtering and adsorption box is installed on one side of the sealing cover, and the air extractor is installed inside the filtering and adsorption box.

[0011] Preferably, the filtering component includes a ventilation duct, a molecular sieve, an activated carbon filter plate, and an air outlet. The ventilation duct is installed inside the filtering and adsorption box, the molecular sieve is installed on one side of the ventilation duct, the activated carbon filter plate is installed on the other side of the molecular sieve, and the air outlet is opened on the surface of the filtering and adsorption box.

[0012] Preferably, the regulation component includes a bracket and an electric telescopic rod. The bracket is installed on the surface of the base, and the electric telescopic rod is installed on the outside of the bracket.

[0013] Preferably, the clamping component includes a fixing plate and a clamping plate. The fixing plate is installed on the outside of the electric telescopic rod, and the clamping plate is installed on the surface of the fixing plate.

[0014] Preferably, a driving component is installed on the outside of the fixing plate. The driving component includes a motor and a threaded rod. The motor is installed on the outside of the fixing plate, and the motor is key-connected to the threaded rod on one side.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. Through the setting of the working mechanism, during use, the ionic smoke detector detects the smoke situation in the working area. When smoke is detected, it transmits data to the PLC controller, and the PLC controller controls the operation of the exhaust fan, quickly sucking the harmful gases and smoke existing in the working area into the filter adsorption box. In the filter adsorption box, the harmful gases first pass through the adsorption and filtration of the molecular sieve, adsorbing and removing the moisture and harmful gases in the gas, and then further filtered through the activated carbon filter plate to remove the organic pollutants and other harmful substances in the gas. Finally, the filtered gas is discharged from the air outlet, reducing the potential harm to the environment and operators, thereby effectively reducing the threat of harmful gases to the health of operators during the battery test, and at the same time protecting the working environment from pollution.

[0017] 2. Through the setting of the driving component, the motor controls the rotation of the threaded rod, and thus the threaded rod controls the reciprocating movement of the clamping plate, so that the clamping plate can clamp different types of lithium batteries. Description of the Drawings

[0018] Figure 1 is the overall external structure schematic diagram of the present utility model;

[0019] Figure 2 is the Figure 1 magnified structure schematic diagram of point A of the present utility model;

[0020] Figure 3 is the Figure 1 magnified structure schematic diagram of point B of the present utility model;

[0021] Figure 4 is the structure schematic diagram of the filter adsorption box of the present utility model.

[0022] Reference numerals in the figure: 1, base; 2, sealing cover; 3, working mechanism; 31, monitoring component; 311, ionic smoke detector; 312, PLC controller; 32, working component; 321, tempered glass; 322, control panel; 323, acupuncture head; 33, exhaust component; 331, filter adsorption box; 332, exhaust fan; 34, filtering component; 341, ventilation duct; 342, molecular sieve; 343, activated carbon filter plate; 344, air outlet; 35, regulation component; 351, bracket; 352, electric telescopic rod; 36, clamping component; 361, fixing plate; 362, clamping plate; 4, driving component; 41, motor; 42, threaded rod. Detailed Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4 As shown in the figure, the present utility model provides a technical solution: a needle-piercing test tooling for large cylindrical lithium batteries, including a base 1 and a working mechanism 3. A sealing cover 2 is installed at the top of the base 1, and a working mechanism 3 is installed at the top of the base 1;

[0026] The working mechanism 3 includes a monitoring component 31, a working component 32, an air extraction component 33, a filtering component 34, a regulation component 35, and a clamping component 36. The monitoring component 31 is installed inside the sealing cover 2, the working component 32 is installed on one side of the base 1, the air extraction component 33 is installed on one side of the sealing cover 2, the filtering component 34 is installed inside the air extraction component 33, the regulation component 35 is installed on the surface of the base 1, and the clamping component 36 is installed on one side of the regulation component 35.

[0027] Furthermore, the monitoring component 31 includes an ion type smoke detector 311 and a PLC controller 312. The ion type smoke detector 311 is installed inside the sealing cover 2, and one side of the ion type smoke detector 311 is electrically connected to the PLC controller 312. The ion type smoke detector 311 monitors the smoke concentration in the equipment working area.

[0028] Furthermore, the working component 32 includes a tempered glass 321, a control panel 322, and a needle piercing head 323. The tempered glass 321 is rotatably connected to the outside of the sealing cover 2, the control panel 322 is installed on the outside of the base 1, and the needle piercing head 323 is inserted into the inside of the sealing cover 2. The tempered glass 321 provides an observation window and at the same time ensures the safety isolation of the operation area.

[0029] Furthermore, the air extraction component 33 includes a filter adsorption box 331 and an air extraction fan 332. The filter adsorption box 331 is installed on one side of the sealing cover 2, and the air extraction fan 332 is installed inside the filter adsorption box 331. The air extraction fan 332 provides an extraction force to introduce the harmful gases in the test area into the filter adsorption box 331.

[0030] Further, the filtering component 34 includes a ventilation duct 341, a molecular sieve 342, an activated carbon filter plate 343, and an air outlet 344. The ventilation duct 341 is installed inside the filtering and adsorption box 331. The molecular sieve 342 is installed on one side of the ventilation duct 341. The activated carbon filter plate 343 is installed on the other side of the molecular sieve 342. The air outlet 344 is formed on the surface of the filtering and adsorption box 331. The molecular sieve 342 adsorbs and removes harmful substances in the gas.

[0031] Further, the regulating component 35 includes a bracket 351 and an electric telescopic rod 352. The bracket 351 is installed on the surface of the base 1. The electric telescopic rod 352 is installed on the outside of the bracket 351. The electric telescopic rod 352 controls the position of the fixing plate 361.

[0032] Further, the clamping component 36 includes a fixing plate 361 and a clamping plate 362. The fixing plate 361 is installed on the outside of the electric telescopic rod 352. The clamping plate 362 is installed on the surface of the fixing plate 361. The clamping plate 362 is used to clamp the battery to be detected.

[0033] Embodiment 2

[0034] Please refer to Figure 3 As shown, compared with Embodiment 1, as another implementation manner of the present invention, a driving component 4 is installed on the outside of the fixing plate 361. The driving component 4 includes a motor 41 and a threaded rod 42. The motor 41 is installed on the outside of the fixing plate 361. One side of the motor 41 is connected to the threaded rod 42 by a flat key. The motor 41 controls the rotation of the threaded rod 42, so that the threaded rod 42 controls the position of the clamping plate 362.

[0035] Working principle: First, move the needle-punch test tooling for large cylindrical lithium batteries to the working position. When in use, in the first step, pull the tempered glass 321 outwards, then control the electric telescopic rod 352 through the control panel 322 to extend it backwards. Then, control the motor 41 again through the control panel 322. The motor 41 controls the rotation of the threaded rod 42, so that the threaded rod 42 controls the movement of the clamping plate 362. Subsequently, place the lithium battery into the clamping plate 362, and then control the movement of the electric telescopic rod 352 and the clamping plate 362 to clamp the lithium battery. In the second step, return the tempered glass 321 to its original position and conduct the test through the needle-punch head 323. In the third step, the ion-type smoke detector 311 detects the smoke situation in the working area. When smoke is detected, the data is transmitted to the PLC controller 312, and the PLC controller 312 controls the operation of the exhaust fan 332 to quickly inhale the harmful gases and smoke existing in the working area into the filter adsorption box 331. In the filter adsorption box 331, the harmful gases first pass through the adsorption and filtration of the molecular sieve 342 to adsorb and remove the moisture and harmful gases in the gas. Then, they pass through the further filtration of the activated carbon filter plate 343 to remove the organic pollutants and other harmful substances in the gas. Finally, the filtered gas is discharged from the air outlet 344, reducing the potential harm to the environment and operators. In this way, the use process of the needle-punch test tooling for large cylindrical lithium batteries is completed.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A needle penetration test tool for a large cylindrical lithium battery, comprising a base (1) and a working mechanism (3), characterized in that: A sealing cover (2) is installed at the top of the base (1), and a working mechanism (3) is installed at the top of the base (1); The working mechanism (3) comprises a monitoring component (31), a working component (32), an exhaust component (33), a filtering component (34), a regulating component (35) and a clamping component (36); the monitoring component (31) is installed on the inner side of the sealing cover (2); the working component (32) is installed on one side of the base (1); the exhaust component (33) is installed on one side of the sealing cover (2); the filtering component (34) is installed inside the exhaust component (33); the regulating component (35) is installed on the surface of the base (1); and the clamping component (36) is installed on one side of the regulating component (35).

2. The needle penetration test tool for large cylindrical lithium batteries according to claim 1, characterized in that: The monitoring component (31) comprises an ionization smoke detector (311) and a PLC controller (312); the ionization smoke detector (311) is installed on the inner side of the sealing cover (2); and one side of the ionization smoke detector (311) is electrically connected to the PLC controller (312).

3. The needle penetration test tool for large cylindrical lithium batteries according to claim 1, characterized in that: The working assembly (32) comprises a tempered glass (321), a control panel (322) and a needling head (323); the outer side of the sealing cover (2) is rotatably connected to the tempered glass (321); the outer side of the base (1) is provided with a control panel (322); and the interior of the sealing cover (2) is plugged with the needling head (323).

4. The needle penetration test tool for large cylindrical lithium batteries according to claim 1, characterized in that: The exhaust assembly (33) comprises a filter adsorption box (331) and an exhaust fan (332); the filter adsorption box (331) is installed on one side of the sealing cover (2), and the exhaust fan (332) is installed on the inner side of the filter adsorption box (331).

5. The needle penetration test tool for large cylindrical lithium batteries according to claim 4, characterized in that: The filter assembly (34) comprises a ventilation duct (341), a molecular sieve (342), an activated carbon filter plate (343) and an air outlet (344); the ventilation duct (341) is installed inside the filter adsorption box (331); the molecular sieve (342) is installed on one side of the ventilation duct (341); the activated carbon filter plate (343) is installed on the other side of the molecular sieve (342); and the air outlet (344) is provided on the surface of the filter adsorption box (331).

6. The needle penetration test tool for large cylindrical lithium batteries according to claim 1, characterized in that: The regulating component (35) comprises a bracket (351) and an electric telescopic rod (352); the bracket (351) is installed on the surface of the base (1), and the electric telescopic rod (352) is installed on the outer side of the bracket (351).

7. The needle penetration test tool for large cylindrical lithium batteries according to claim 6, characterized in that: The clamping assembly (36) comprises a fixing plate (361) and a clamping plate (362); the fixing plate (361) is installed on the outer side of the electric telescopic rod (352); and the clamping plate (362) is installed on the surface of the fixing plate (361).

8. The needle penetration test tool for large cylindrical lithium batteries according to claim 7, characterized in that: A driving assembly (4) is installed on the outer side of the fixing plate (361), and the driving assembly (4) comprises a motor (41) and a threaded rod (42). A motor (41) is installed on the outer side of the fixing plate (361), and a flat key is connected to the threaded rod (42) on one side of the motor (41).

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