Explosion-proof testing device for lithium battery

Abstract

The utility model relates to the technical field of lithium battery anti-explosion testing, in particular to an anti-explosion testing device for a lithium battery, which comprises a support frame, a sealing ring, a testing component, a threaded rod, a sliding plate, a penetrating type lead screw motor and a protective component, and a gas collecting component is installed on the inner side of the supporting frame, the protective component comprises a protective cover shell, a transparent window is arranged on the front side of the protective cover shell, and a gas guide ring is arranged at the lower end of the outer side of the protective cover shell. Gas generated by detonation of the lithium battery is stored through the gas guide pipe and the gas collection component, the gas pressure in the protection component is reduced, the risk of burst of the protection component is reduced, the stored gas is filtered through the gas collection component, and environmental pollution caused by direct emission of smoke is avoided; and the test component is convenient to clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery explosion -proof test technical field, specifically a kind of explosion -proof test device for lithium battery. BACKGROUND

[0002] Lithium battery explosion -proof grade is determined by evaluating the heat accumulation that lithium battery can occur in the process of charging and discharging, and the explosion or fire risk that can be caused under overheating condition, the higher the explosion -proof grade, the better the safety performance of lithium battery, and the explosion -proof test device for lithium battery is used for the explosion -proof test operation of lithium battery.

[0003] Chinese patent discloses a kind of explosion -proof needle test device for lithium battery, (grant announcement No.CN117031321B), the patent technology is tested when to lithium battery, by protection cover can be protected, avoid the explosion of lithium battery when testing to cause harm to staff, simultaneously, protection device is set, further to the explosion that lithium battery test can generate is protected, improve the security of test device, but, above-mentioned explosion -proof test device is sealed detection site by protection cover, gas generated by lithium battery deflagration is difficult to discharge, the internal pressure of protection cover increases, there is the risk of protection cover burst, not conducive to the security of test operation, and smoke is not handled after testing, directly discharge harm to the health of detection personnel.Therefore, the explosion -proof test device for lithium battery is provided by the person skilled in the art to solve the problems raised in the above background art. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of explosion -proof test device for lithium battery to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of explosion -proof test device for lithium battery, including support frame, sealing ring, test component, threaded rod, sliding plate, through type screw rod motor and protection component, the sealing ring is located at the upper side position of support frame, the test component is located at the inner side position of sealing ring, the threaded rod is located at the upper side outer end position of support frame, the sliding plate is located at the upper end position of threaded rod, the through type screw rod motor is located at the upper side position of sliding plate, the protection component is located at the inner side position of sliding plate, the lower end both sides position of protection component is provided with gas duct, the inner side of support frame is provided with gas collection component, the protection component includes protection cover shell, the front side of protection cover shell is provided with window, the outer side lower end position of protection cover shell is provided with gas guide ring, the outer side of protection cover shell is located at the inner side position of gas guide ring and is provided with gas outlet.

[0007] As a further scheme of the utility model: the test component includes a bearing plate, the lower side of the bearing plate is provided with an insertion rod, the upper side of the bearing plate is provided with a first mounting bracket at both end positions, the upper end of the first mounting bracket is provided with an adjusting screw, the lower side of the adjusting screw is provided with a positioning plate, the upper side of the positioning plate is provided with a guide sliding rod at both end positions, the upper side of the bearing plate is provided with a second mounting bracket, the upper end of the second mounting bracket is provided with a cylinder, the lower end of the cylinder is provided with a puncture needle.

[0008] As a further scheme of the utility model: the gas collecting component includes a fixed plate, the lower side of the fixed plate is provided with a gas storage bag, the lower side of the gas storage bag is provided with a filter cartridge, the inside upper end position of the filter cartridge is provided with a filter layer, and the lower side of the filter cartridge is provided with an exhaust fan.

[0009] As a further scheme of the utility model: the sliding plate slides at the upper end position of the threaded rod, the threaded rod is located at the inside position of the through type lead screw motor, and the sliding plate slides at the outside position of the threaded rod through the through type lead screw motor.

[0010] As a further scheme of the utility model: the protective shell slides at the outside position of the sealing ring, the protective shell is in communication with the gas guide ring through the gas outlet, the output end of the gas guide ring is in communication with the input end of the gas guide pipe, and the output end of the gas guide pipe is in communication with the input end of the gas collecting component.

[0011] As a further scheme of the utility model: the upper end of the adjusting screw rotates at the upper end position of the first mounting bracket, the lower end of the adjusting screw rotates at the upper side position of the positioning plate, the upper end of the guide sliding rod slides at the upper end position of the first mounting bracket, the puncture needle slides at the inside position of the second mounting bracket through the cylinder, and the insertion rod slides at the upper side position of the supporting frame.

[0012] As a further scheme of the utility model: the output end of the gas guide pipe is in communication with the upper end of the gas storage bag, and the lower end of the gas storage bag is in communication with the upper end of the filter cartridge.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The explosion-proof test device for lithium battery stores the gas generated by lithium battery explosion through the gas guide pipe and the gas collecting component, reduces the gas pressure in the protective component, reduces the risk of explosion of the protective component, and is favorable for the safety of test operation.

[0015] 2. The stored gas is filtered through the gas collecting component, environmental pollution caused by direct smoke discharge is avoided, and the harm to the health of test personnel is reduced.

[0016] 3. The test member detachable support frame facilitates the cleaning of the test member and improves the convenience of use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic diagram of an explosion-proof test device for lithium batteries;

[0018] Figure 2 FIG. 2 is a perspective view of a protective member in an explosion-proof test device for lithium batteries;

[0019] Figure 3 FIG. 3 is a structural schematic diagram of a test member in an explosion-proof test device for lithium batteries;

[0020] Figure 4 FIG. 4 is a perspective view of a gas collection member in an explosion-proof test device for lithium batteries.

[0021] In the figure: 1, support frame; 2, sealing ring; 3, test member; 4, threaded rod; 5, sliding plate; 6, through-type screw rod motor; 7, protective member; 8, gas guide pipe; 9, gas collection member; 10, protective shell; 11, window; 12, gas guide ring; 13, gas outlet; 14, bearing plate; 15, insertion rod; 16, first mounting bracket; 17, adjusting screw; 18, positioning plate; 19, guide sliding rod; 20, second mounting bracket; 21, air cylinder; 22, puncture needle; 23, fixed plate; 24, gas storage bag; 25, filter cartridge; 26, filter layer; 27, exhaust fan. DETAILED DESCRIPTION

[0022] Please refer to Figures 1-4The utility model discloses an explosion -proof testing arrangement for lithium battery, including support frame 1, seal ring 2, test component 3, threaded rod 4, sliding plate 5, through -type screw rod motor 6 and protection component 7, seal ring 2 is located at the upside position of support frame 1, test component 3 is located at the inboard position of seal ring 2, threaded rod 4 is located at the upside outer end position of support frame 1, sliding plate 5 is located at the upper end position of threaded rod 4, through -type screw rod motor 6 is located at the upside position of sliding plate 5, protection component 7 is located at the inboard position of sliding plate 5, and protection component 7's both sides position at the lower end is provided with gas duct 8, and the inboard of support frame 1 is installed with gas collection component 9, and protection component 7 includes protective casing 10, and the front side of protective casing 10 is provided with the window 11, and the outside lower end position of protective casing 10 is provided with gas ring 12, and the outside of protective casing 10 is located at the inboard position of gas ring 12 and is set with gas outlet 13, and sliding plate 5 slides at the upper end position of threaded rod 4, and threaded rod 4 is located at the internal position of through -type screw rod motor 6, and sliding plate 5 slides at the outer side position of threaded rod 4 through through -type screw rod motor 6, and protective casing 10 slides at the outer side position of seal ring 2, and protective casing 10 is through gas outlet 13 and is penetrated with gas ring 12, and the output end of gas ring 12 is penetrated with the input end of gas duct 8, and the output end of gas duct 8 is penetrated with the input end of gas collection component 9, first, place the explosion -proof testing arrangement for lithium battery to the use position, place the lithium battery in test component 3, through -type screw rod motor 6 operation drives sliding plate 5 to slide at the outer side of threaded rod 4, and protection component 7 moves down, and protective casing 10 is clamped to the outer side of seal ring 2, then, start testing, and test component 3 runs and pierces lithium battery, and the test condition of lithium battery is watched through the window 11, if lithium battery appears to explode, the gas pressure in the inside of protective casing 10 increases, and the gas in the inside of protective casing 10 enters the inside of gas ring 12 through gas outlet 13, and the gas in the inside of gas ring 12 is introduced into the inside of gas collection component 9 through gas duct 8, and gas collection component 9 runs and filters gas and discharges.

[0023] In Figure 1 、 3In the middle: the test component 3 includes a bearing plate 14, the lower side of the bearing plate 14 is provided with a plug rod 15, the upper side of the bearing plate 14 is provided with a first mounting frame 16 at both ends, the upper end of the first mounting frame 16 is provided with an adjusting screw 17, the lower side of the adjusting screw 17 is provided with a positioning plate 18, the upper side of the positioning plate 18 is provided with a guide slide rod 19 at both ends, the upper side of the bearing plate 14 is provided with a second mounting frame 20, the upper end of the second mounting frame 20 is provided with a cylinder 21, the lower end of the cylinder 21 is provided with a puncture needle 22, the upper end of the adjusting screw 17 is rotatable at the upper end of the first mounting frame 16, the lower end of the adjusting screw 17 is rotatable at the upper side of the positioning plate 18, the upper end of the guide slide rod 19 is slidable at the upper end of the first mounting frame 16, the puncture needle 22 is slidable at the inner side of the second mounting frame 20 through the cylinder 21, the plug rod 15 is slidable at the upper side of the support frame 1, the lithium battery is placed on the upper side of the bearing plate 14, the upper end of the adjusting screw 17 is rotated at the upper end of the first mounting frame 16, the lower end of the adjusting screw 17 is rotated at the upper side of the positioning plate 18, the upper end of the guide slide rod 19 is slid at the upper end of the first mounting frame 16 to guide the positioning plate 18, the positioning plate 18 is pressed to the upper side of the lithium battery to position the lithium battery, the through-type screw rod motor 6 operates to drive the sliding plate 5 to slide at the outer side of the threaded rod 4, the protective component 7 moves downward, the protective shell 10 is clamped to the outer side of the sealing ring 2, then the test starts, the cylinder 21 operates to push the puncture needle 22 to move downward, and the puncture needle 22 is inserted into the interior of the lithium battery.

[0024] In Figure 1 、 4 In the middle: the gas collecting component 9 includes a fixed plate 23, the lower side of the fixed plate 23 is provided with a gas storage bag 24, the lower side of the gas storage bag 24 is provided with a filter cylinder 25, the inner upper end of the filter cylinder 25 is provided with a filter layer 26, the lower side of the filter cylinder 25 is provided with an exhaust fan 27, the output end of the gas guide pipe 8 penetrates the upper end of the gas storage bag 24, and the lower end of the gas storage bag 24 penetrates the upper end of the filter cylinder 25, if the lithium battery explodes, the air pressure in the protective shell 10 increases, the gas in the protective shell 10 enters the interior of the gas guide ring 12 through the gas outlet 13, the gas in the interior of the gas guide ring 12 is guided into the interior of the gas storage bag 24 through the gas guide pipe 8, the gas storage bag 24 expands, the exhaust fan 27 operates to guide the gas in the interior of the gas storage bag 24 into the filter cylinder 25, and the gas in the interior of the filter cylinder 25 is discharged after being filtered by the filter layer 26.

[0025] The working principle of the utility model is: firstly, place the explosion-proof testing device for lithium battery to the use position, place the lithium battery to the upper side of the bearing plate 14, rotate the upper end of the adjusting screw 17 at the upper end of the first mounting frame 16, rotate the lower end of the adjusting screw 17 at the upper side of the positioning plate 18, slide the upper end of the guide slide rod 19 at the upper end of the first mounting frame 16 to the positioning plate 18, press the positioning plate 18 to the upper side of the lithium battery to position the lithium battery, the operation of the through type screw rod motor 6 drives the sliding plate 5 to slide at the outside of the threaded rod 4, the protective component 7 moves down, the protective shell 10 is clamped to the outside of the sealing ring 2, then, start testing, the cylinder 21 operates to push the puncture needle 22 to move down, the puncture needle 22 is inserted into the inside of the lithium battery, the testing condition of the lithium battery is observed through the window 11, if the lithium battery explodes, the air pressure in the protective shell 10 increases, the gas in the protective shell 10 enters the inside of the air guide ring 12 through the air outlet 13, the gas in the air guide ring 12 is guided into the inside of the air storage bag 24 through the air guide pipe 8, the air storage bag 24 expands, the exhaust fan 27 operates to guide the gas in the inside of the air storage bag 24 into the filter cartridge 25, the gas in the inside of the filter cartridge 25 is filtered through the filter layer 26 and is discharged.

[0026] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An explosion-proof testing device for lithium batteries, comprising a support frame (1), a sealing ring (2), a testing component (3), a threaded rod (4), a sliding plate (5), a through-type lead screw motor (6), and a protective component (7), wherein the sealing ring (2) is located on the upper side of the support frame (1), the testing component (3) is located on the inner side of the sealing ring (2), the threaded rod (4) is located at the upper outer end of the support frame (1), the sliding plate (5) is located at the upper end of the threaded rod (4), the through-type lead screw motor (6) is located on the upper side of the sliding plate (5), and the protective component (7) is located on the inner side of the sliding plate (5), characterized in that, The protective component (7) is provided with air guide pipes (8) on both sides of the lower end. The support frame (1) is provided with a gas collection component (9). The protective component (7) includes a protective cover (10). The front side of the protective cover (10) is provided with a window (11). The lower outer side of the protective cover (10) is provided with an air guide ring (12). An air outlet (13) is opened on the outer side of the protective cover (10) at the inner side of the air guide ring (12).

2. The explosion-proof testing device for lithium batteries according to claim 1, characterized in that, The test component (3) includes a support plate (14), a rod (15) is provided on the lower side of the support plate (14), a first mounting bracket (16) is provided at both ends of the upper side of the support plate (14), an adjusting screw (17) is provided at the upper end of the first mounting bracket (16), a positioning plate (18) is provided at the lower side of the adjusting screw (17), a guide rod (19) is provided at both ends of the upper side of the positioning plate (18), a second mounting bracket (20) is provided on the upper side of the support plate (14), a cylinder (21) is installed at the upper end of the second mounting bracket (20), and a puncture needle (22) is provided at the lower end of the cylinder (21).

3. The explosion-proof testing device for lithium batteries according to claim 1, characterized in that, The gas collection component (9) includes a fixing plate (23), a gas storage bag (24) is provided on the lower side of the fixing plate (23), a filter cylinder (25) is provided on the lower side of the gas storage bag (24), a filter layer (26) is provided at the upper end of the inside of the filter cylinder (25), and an exhaust fan (27) is installed on the lower side of the filter cylinder (25).

4. The explosion-proof testing device for lithium batteries according to claim 1, characterized in that, The slide plate (5) slides at the upper end of the threaded rod (4), the threaded rod (4) is located inside the through-type lead screw motor (6), and the slide plate (5) slides on the outer side of the threaded rod (4) through the through-type lead screw motor (6).

5. The explosion-proof testing device for lithium batteries according to claim 1, characterized in that, The protective cover (10) slides on the outside of the sealing ring (2). The protective cover (10) is connected to the air guide ring (12) through the air outlet (13). The output end of the air guide ring (12) is connected to the input end of the air guide pipe (8). The output end of the air guide pipe (8) is connected to the input end of the gas collection component (9).

6. The explosion-proof testing device for lithium batteries according to claim 2, characterized in that, The upper end of the adjusting screw (17) rotates to the upper position of the first mounting bracket (16), the lower end of the adjusting screw (17) rotates to the upper position of the positioning plate (18), the upper end of the guide rod (19) slides to the upper position of the first mounting bracket (16), the puncture needle (22) slides to the inner position of the second mounting bracket (20) through the cylinder (21), and the insertion rod (15) slides to the upper position of the support frame (1).

7. The explosion-proof testing device for lithium batteries according to claim 3, characterized in that, The output end of the air guide tube (8) is connected to the upper end of the air storage bag (24), and the lower end of the air storage bag (24) is connected to the upper end of the filter cylinder (25).

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