CN114397594B - Battery pack detection device and application method - Google Patents
Battery pack detection device and application method Download PDFInfo
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- CN114397594B CN114397594B CN202210051117.7A CN202210051117A CN114397594B CN 114397594 B CN114397594 B CN 114397594B CN 202210051117 A CN202210051117 A CN 202210051117A CN 114397594 B CN114397594 B CN 114397594B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- 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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Abstract
The invention discloses a battery pack detection device and a using method thereof, the battery pack detection device comprises a device main body, wherein a detection box body is fixedly connected to the lower end face of the device main body, a ventilation grid is arranged on the side end face of the detection box body, an air supply device is fixedly connected to the lower end face of the detection box body, an active dust collection mechanism is arranged inside the air supply device, a detection cavity is arranged inside the detection box body, a battery pack is fixedly connected to the bottom of the detection cavity through a fixing tool, a self-disengaging monitoring mechanism for monitoring the temperature of the fixing tool is elastically connected inside the detection cavity, a driving telescopic rod is fixedly arranged in the middle of the detection cavity, a puncture needle is arranged at the tail end of the driving telescopic rod, the self-disengaging monitoring mechanism is intermittently abutted against the side end face of the driving telescopic rod, and the device effectively improves the protection of a sensing device during a puncture experiment and avoids the damage of harmful smoke and dust to the environment and the device.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to battery pack detection equipment and a using method thereof.
Background
The battery needling tester is also called a lithium battery needling tester, a battery needling tester and a lithium battery needling resistance tester. The method is suitable for various battery-level simulation of the situation that the battery is subjected to needling (such as compacting garbage) when the household waste is treated.
The invention discloses a Chinese patent publication No. CN107533112B, and provides a device and a method for performing nail penetration test on a secondary battery. The apparatus for performing the nail penetration test comprises: a stage on which a secondary battery as a target of a nail penetration test is fixed; a nail penetration unit including a nail lifting/lowering device; a voltage measurement unit configured to repeatedly measure a short-circuit voltage of the secondary battery at time intervals during the nail penetration test; and a controller operatively coupled to the voltage measurement unit. The controller periodically receives the short-circuit voltage from the voltage measuring unit, determines a short-circuit current, which allows the received short-circuit voltage to be applied between outermost nodes of an equivalent circuit of the modeled secondary battery, whenever the short-circuit voltage is received, and visually outputs a change in a value of the determined short-circuit current with time through the display unit.
Along with new energy automobile field development, the lithium electricity becomes the preference of big many vehicle enterprises, but the lithium cell group is when carrying out the puncture experiment, because its energy density and chemical property lead to producing the thermal runaway easily after the puncture, and then make the group battery produce detonation or explosion, and the detonation and the explosion of group battery very easily lead to the fact the damage to sensitive detection sensor, and contain a large amount of harmful solid dust in the smoke and dust of battery burning, cause the pollution to equipment and experimental environment easily, influence the operator healthy.
Therefore, it is necessary to provide a battery pack detection apparatus and a method of using the same to solve the above-mentioned problems.
Disclosure of Invention
The present invention is directed to a battery pack testing apparatus and method of use to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the battery pack detection equipment comprises a device main body, wherein a detection box body is fixedly connected to the lower end face of the device main body, a breathable grid is arranged on the side end face of the detection box body, an air supply device is fixedly connected to the lower end face of the detection box body, an active dust collection mechanism is arranged inside the air supply device, a detection cavity is formed inside the detection box body, a battery pack is fixedly connected to the bottom of the detection cavity through a fixing tool, a self-release monitoring mechanism for monitoring the temperature of the fixing tool is elastically connected to the inside of the detection cavity, a driving telescopic rod is fixedly installed in the middle of the detection cavity, a puncture needle is arranged at the tail end of the driving telescopic rod, and the self-release monitoring mechanism is intermittently abutted against the side end face of the driving telescopic rod;
when the battery pack is ignited and burns or explodes, the self-separation monitoring mechanism automatically separates from the surface of the battery pack, and the active dust collecting mechanism moves to be attached to the end face of the side of the air-permeable grid so as to collect burning or exploding smoke dust.
As a further scheme of the invention, the self-release monitoring mechanism comprises a fixed top plate and a monitoring plate, the fixed top plate is elastically connected inside the detection cavity, the monitoring plate is attached to the lower end face of the fixed top plate, and the middle part of the fixed top plate is provided with a through hole attached to the end face of the side of the driving telescopic rod.
As a further scheme of the invention, a plurality of groups of movable plates are movable in the monitoring plate, gaps are arranged between every two adjacent movable plates, the movable plates are elastically connected through a first spring, one end of each movable plate, which is far away from the monitoring plate, is fixedly connected with a movable abutting plate, and the movable abutting plate extends to the lower part of the through hole and abuts against the driving telescopic rod.
According to a further scheme of the invention, induction blocks are embedded in two sides of the inner wall of the gap in a supporting mode, a temperature sensor is installed in the middle of the gap, the temperature sensor is fixedly connected with an elastic telescopic rod, one end, away from the temperature sensor, of the elastic telescopic rod is fixedly connected with the lower end face of a fixed top plate, and inclined plane parts are fixedly connected to two sides of the adjacent movable plate.
As a further scheme of the invention, the active dust collecting mechanism comprises a filtering device, a dust collecting cloth bag, a connecting rod, a sliding rod and a connecting frame, the connecting frame is attached to the side end face of the active dust collecting mechanism, the dust collecting cloth bag is communicated with the middle of the connecting frame, the filtering device is movably embedded in the air supply device, the sliding rod is fixedly connected to the two sides of the connecting frame and the filtering device, the connecting frame and the filtering device are fixedly connected through the connecting rod, and a sliding groove matched with the sliding rod is formed in the side end face of the detection box.
As a further scheme of the invention, a filter screen is arranged in the middle of the filter device in an assembled manner, a toothed plate is fixedly connected to one layer of the side end surface of the filter device, a driving rod is fixedly connected to the lower end surface of the self-disengaging monitoring mechanism, and a clamping block matched with the toothed plate is elastically embedded in the driving rod through a second spring.
As a further scheme of the invention, the middle part of the air supply device is provided with an air hole, the interior of the air supply device is provided with a movable groove matched with the connecting rod and the sliding rod, the movable groove is communicated with a limiting groove, and the limiting groove is matched with the driving rod.
A battery pack detection device using method is characterized in that a battery pack is fixed inside a detection cavity through a fixing tool, during detection, a telescopic driving rod controls a puncture needle to move downwards and puncture the battery pack to perform puncture tests, when the telescopic driving rod moves downwards, a self-separation monitoring mechanism is driven to move downwards synchronously and is attached to the surface of the battery pack, the self-separation monitoring mechanism is used for monitoring the temperature of each position on the surface of the battery pack, when the battery pack burns or explodes on fire, the self-separation monitoring mechanism automatically falls off from the surface of the battery pack of the telescopic driving rod and drives an active dust collection mechanism to move to be attached to a breathable grid, and an air supply device supplies air and ventilates the inside of the detection cavity, so that smoke is discharged from the breathable grid, and smoke and dust are collected through the active dust collection mechanism.
When the device is used, the battery pack is fixed inside the detection cavity through the fixing tool, during detection, the telescopic rod is driven to control the puncture needle to move downwards and puncture the battery pack for puncture test, when the telescopic rod is driven to move downwards, the self-separation monitoring mechanism is driven to move downwards synchronously and be attached to the surface of the battery pack, the self-separation monitoring mechanism is used for monitoring the temperature of each position on the surface of the battery pack, however, when the battery pack is ignited and burnt or exploded, in order to ensure the safety of the self-separation monitoring mechanism, the self-separation monitoring mechanism automatically falls off from the surface of the battery pack, the damage of the self-separation monitoring mechanism caused by high temperature or explosion is avoided, and smoke formed after the combustion of the battery pack has more harmful smoke and seriously damages the health of operators, the device is further provided with the active dust collection mechanism, when the battery pack is ignited or exploded, the active dust collection mechanism moves to be attached to the breathable grids, the bottom of the detection box is provided with the gas supply device, the gas supply device can be used for supplying and ventilating the gas in the detection cavity, so that other smoke is discharged from the breathable grids, and the dust collection mechanism is used for collecting the smoke dust, thereby improving the safety of the device.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the inspection box of the present invention;
FIG. 3 is a schematic cross-sectional view of the self-detachment monitoring mechanism of the present invention;
FIG. 4 is a schematic view of the bottom structure of the self-release monitoring mechanism of the present invention;
FIG. 5 is an enlarged schematic view of the invention at A in FIG. 3;
FIG. 6 is an enlarged view of the structure of FIG. 4B in accordance with the present invention;
FIG. 7 is a schematic structural diagram of an active dust collecting mechanism according to the present invention;
FIG. 8 is a schematic view of the filter arrangement of the present invention;
FIG. 9 is a cross-sectional view of the drive rod of the present invention;
FIG. 10 is a schematic view of the gas supply apparatus of the present invention;
fig. 11 is an enlarged view of the structure of fig. 10 at C according to the present invention.
In the figure: 1. a device main body; 2. a gas permeable grid; 3. an active dust collecting mechanism; 4. a gas supply device; 5. detecting the box body; 6. a detection chamber; 7. driving the telescopic rod; 8. a chute; 9. a battery pack; 10. fixing the tool; 11. a drive rod; 12. a self-disengaging monitoring mechanism; 13. fixing a top plate; 14. a through hole; 15. a movable resisting plate; 16. a monitoring plate; 17. a movable plate; 18. a first spring; 19. a gap; 20. a temperature sensor; 21. an induction block; 22. an inclined plane part; 23. an elastic telescopic rod; 24. a filtration device; 25. a dust collecting cloth bag; 26. a connecting rod; 27. a slide bar; 28. a connecting frame; 29. a toothed plate; 30. a filter screen; 31. a clamping block; 32. a second spring; 33. a movable groove; 34. a limiting groove; 35. and (4) air holes.
Detailed Description
Example one
As shown in fig. 1-2, a battery pack detection device comprises a device body 1, wherein a detection box body 5 is fixedly connected to the lower end face of the device body 1, a breathable grid 2 is arranged on the side end face of the detection box body 5, an air supply device 4 is fixedly connected to the lower end face of the detection box body 5, an active dust collection mechanism 3 is arranged inside the air supply device 4, a detection cavity 6 is arranged inside the detection box body 5, a battery pack 9 is fixedly connected to the bottom of the detection cavity 6 through a fixing tool 10, a self-release monitoring mechanism 12 for monitoring the temperature of the fixing tool 10 is elastically connected inside the detection cavity 6, a driving telescopic rod 7 is fixedly installed in the middle of the detection cavity 6, a puncture needle is arranged at the tail end of the driving telescopic rod 7, and the self-release monitoring mechanism 12 and the side end face of the driving telescopic rod 7 are intermittently abutted;
when the battery pack 9 is ignited and burns or explodes, the self-separation monitoring mechanism 12 automatically separates from the surface of the battery pack 9, the active dust collecting mechanism 3 moves to be attached to the end face of the side of the air permeable grid 2, and burning or exploding smoke dust is collected.
When the device is used, the battery pack 9 is fixed inside the detection cavity 6 through the fixing tool 10, during detection, the telescopic rod 7 is driven to control the puncture needle to move downwards and puncture the battery pack 9 for puncture test, when the telescopic rod 7 is driven to move downwards, the self-disengaging monitoring mechanism 12 is driven to synchronously move downwards and be attached to the surface of the battery pack 9, the self-disengaging monitoring mechanism 12 is used for monitoring the temperature of each position on the surface of the battery pack 9, when the battery pack 9 is ignited and burnt or exploded, in order to ensure the safety of the self-disengaging monitoring mechanism 12, the self-disengaging monitoring mechanism 12 automatically comes off from the surface of the battery pack 9, damage to the self-disengaging monitoring mechanism 12 caused by high temperature or explosion is avoided, and the operator is seriously damaged due to more harmful smoke dust in smoke formed after the burning of the battery pack 9, the active dust collection mechanism 3 is further arranged, when the battery pack 9 is ignited or exploded, the dust collection mechanism 3 moves to be attached to the air permeable grid 2, the air supply device 4 is arranged at the bottom of the detection box 5, and the air supply device 4 can be used for supplying and ventilating the air inside the detection cavity 6, so that other dust is discharged by the air permeable grid 2, and collecting dust by the dust collection mechanism 3, thereby improving the safety of the device.
Example two
On the basis of the first embodiment, as shown in fig. 1 to 6, the self-detachment monitoring mechanism 12 includes a fixed top plate 13 and a monitoring plate 16, the fixed top plate 13 is elastically connected inside the detection chamber 6, the monitoring plate 16 is attached to the lower end surface of the fixed top plate 13, and a through hole 14 attached to the end surface of the side of the driving telescopic rod 7 is formed in the middle of the fixed top plate 13.
As shown in fig. 1-6, a plurality of sets of movable plates 17 are movable inside the monitoring plate 16, a gap 19 is provided between adjacent movable plates 17, the movable plates 17 are elastically connected through a first spring 18, one end of the movable plate 17 away from the monitoring plate 16 is fixedly connected with a movable abutting plate 15, and the movable abutting plate 15 extends to the lower part of the through hole 14 and abuts against the driving telescopic rod 7.
When the device is used, the movable abutting plate 15 is arranged, the movable abutting plate 15 is connected with the movable plate 17, the movable plate 17 is elastically embedded in the monitoring plate 16 through the spring, the movable abutting plate 15 and the movable plate 17 are attached to the bottom of the fixed top plate 13, the movable abutting plate 15 extends to the position below the through hole 14 and abuts against the telescopic driving rod 7, when the telescopic driving rod 7 controls the puncture needle to move downwards, the movable abutting plate 15 can be driven to move downwards, the self-separation monitoring mechanism 12 can move downwards synchronously, an elastic buffer piece can be arranged between the telescopic driving rod 7 and the movable abutting plate 15 during specific use, or the telescopic driving rod 7 can be set as a multi-stage telescopic rod, so that after the self-separation monitoring mechanism 12 is attached to the battery pack 9, the probe can be continuously controlled to penetrate into the battery pack 9.
As shown in fig. 1-6, the sensing blocks 21 are embedded in two sides of the inner wall of the gap 19, the temperature sensor 20 is installed in the middle of the gap 19, the temperature sensor 20 is fixedly connected with the elastic telescopic rod 23, one end of the elastic telescopic rod 23 departing from the temperature sensor 20 is fixedly connected with the lower end face of the fixed top plate 13, and the inclined plane portions 22 are fixedly connected to two sides of the adjacent movable plate 17.
When the self-disengaging monitoring mechanism 12 is used, a plurality of groups of temperature sensors 20 are arranged to monitor different local numerical values on the surface of the battery pack 9, and corresponding materials of the sensing block 21 are adjusted, so that when the battery pack 9 burns, fires, burns or explodes, the sensing block 21 fuses when reaching a proper temperature, and further supporting force between the movable plates 17 disappears, the gap 19 is gradually reduced under the action of the first spring 18, the movable plates 17 are driven to approach each other, so that the movable abutting plate 15 moves towards the movable plates 17 and is separated from the lower side of the through hole 14, so that the driving telescopic rod 7 and the self-disengaging monitoring mechanism 12 are abutted and disconnected, at the moment, the self-disengaging monitoring mechanism 12 rebounds and rises under the action of elastic force, and further the self-disengaging monitoring mechanism 12 is separated from the battery pack 9 to effectively protect the temperature sensors 20 inside the self-disengaging monitoring mechanism 12, further the temperature sensors 20 are elastically arranged through the elastic telescopic rods 23, and are attached to the battery pack 9 to achieve the best monitoring effect, when the battery pack 9 is hot, the movable plates 17 approach each other, and the elastic inclined plane 23 can be further compressed by the inclined plane 23, the temperature sensors 20 can prevent the temperature sensors from being damaged by the flame impact, and the flame impact on the temperature sensors 20, and the temperature sensors 17, and the flame impact of the explosion can be prevented from losing.
The further induction block 21 can be provided with corresponding materials according to the induction section of the temperature sensor 20, and the induction block 21 can be provided with various shapes such as a thread shape, a rod shape and the like according to different use environments, so that the induction block 21 can be rapidly broken under the action of the first spring 18 after being melted.
As shown in fig. 1-7, the active dust collecting mechanism 3 includes a filtering device 24, a dust collecting cloth bag 25, a connecting rod 26, a sliding rod 27 and a connecting frame 28, the connecting frame 28 is attached to a side end face of the active dust collecting mechanism 3, the dust collecting cloth bag 25 is communicated with and arranged in the middle of the connecting frame 28, the filtering device 24 is movably embedded in the air supply device 4, the sliding rod 27 is fixedly connected to two sides of the connecting frame 28 and the filtering device 24, the connecting frame 28 and the filtering device 24 are fixedly connected through the connecting rod 26, and a sliding groove 8 matched with the sliding rod 27 is arranged on a side end face of the detection box 5.
During the use, through removing the joint frame 28 to laminating with ventilative grid 2, filter equipment 24 deviates from joint frame 28 one side laminating with ventilative grid 2 under the effect of connecting rod 26 this moment, thereby carry out the prefiltering to the gas through ventilative grid 2 through filter equipment 24, avoid macromolecular particle to block up the sack 25 that gathers dust and lead to the filtration efficiency to reduce, and joint frame 28 sets up at the opposite side, the gas gets into the inside of sack 25 that gathers dust through the middle part of joint frame 28, catch through the sack 25 that gathers dust and avoid polluting the peripheral air influence testing personnel health of equipment to macromolecular solid dust in the gas.
As shown in fig. 1 to 8, a filter screen 30 is arranged in the middle of the filter device 24 in a assembling manner, a toothed plate 29 is fixedly connected to one layer of the side end surface of the filter device 24, a driving rod 11 is fixedly connected to the lower end surface of the self-disengaging monitoring mechanism 12, and a clamping block 31 matched with the toothed plate 29 is elastically embedded in the driving rod 11 through a second spring 32.
As shown in fig. 1-11, the middle of the air supply device 4 is provided with an air hole 35, the interior of the air supply device 4 is provided with a movable groove 33 matched with the connecting rod 26 and the sliding rod 27, the movable groove 33 is communicated with a limit groove 34, and the limit groove 34 is matched with the driving rod 11.
During the use, gas supply unit 4 passes through gas pocket 35 to the inside supply gas of detection chamber 6, when group battery 9 thermal runaway burning or explosion, from taking off monitoring mechanism 12 automatic protection under the effect of response piece 21, from taking off monitoring mechanism 12 moves up this moment, through from taking off monitoring mechanism 12 moves up and then drive actuating lever 11 and remove, and because actuating lever 11 through joint piece 31 with pinion rack 29 elasticity card with, and then drive filter equipment 24 and move up, and because filter equipment 24 and connection frame 28 are fixed continuous, can drive active dust collecting mechanism 3 and remove to ventilative grid 2 and go out the work of gathering dust, and gas supply unit 4 is equipped with movable groove 33 and spacing groove 34, make actuating lever 11 closely laminate with pinion rack 29, guarantee the stability of joint.
A battery pack 9 is fixed inside a detection cavity 6 through a fixing tool 10, during detection, a telescopic driving rod 7 controls a puncture needle to move downwards and puncture the battery pack 9 to carry out puncture tests, when the telescopic driving rod 7 moves downwards, a self-disengaging monitoring mechanism 12 is driven to synchronously move downwards and be attached to the surface of the battery pack 9, the self-disengaging monitoring mechanism 12 is used for monitoring the temperature of each position on the surface of the battery pack 9, when the battery pack 9 is ignited and burnt or exploded, the self-disengaging monitoring mechanism 12 automatically disengages from the surface of the battery pack 9 of the telescopic driving rod 7 and drives an active dust collecting mechanism 3 to move to be attached to a breathable grid 2, a gas supply device 4 supplies and ventilates the inside of the detection cavity 6, smoke is discharged from the breathable grid 2, and smoke and dust are collected through the active dust collecting mechanism 3.
The working principle is as follows: the battery pack 9 is fixed inside the detection cavity 6 through a fixing tool 10, during detection, a telescopic rod 7 is driven to control a puncture needle to move downwards and puncture the battery pack 9 for puncture test, when the telescopic rod 7 is driven to move downwards, a self-disengaging monitoring mechanism 12 is driven to synchronously move downwards and be attached to the surface of the battery pack 9, the self-disengaging monitoring mechanism 12 is used for monitoring the temperature of each position on the surface of the battery pack 9, however, when the battery pack 9 is ignited and burnt or exploded, in order to ensure the safety of the self-disengaging monitoring mechanism 12, the self-disengaging monitoring mechanism 12 automatically disengages from the surface of the battery pack 9 to avoid the damage of the self-disengaging monitoring mechanism 12 caused by high temperature or explosion, and the flue gas formed after the burning of the battery pack 9 has more harmful smoke and seriously damages the health of operators, an active dust collecting mechanism 3 is further arranged, when the battery pack 9 is ignited or exploded, the active dust collecting mechanism 3 moves to be attached to the ventilating grid 2, the bottom of the detection box body 5 is provided with the air supply device 4, the air supply device 4 can be used for supplying air and ventilating the interior of the detection cavity 6, other air is discharged from the air permeable grid 2, smoke dust is collected through the active dust collection mechanism 3, the safety of the device is improved, the movable abutting plate 15 is arranged, the movable abutting plate 15 is connected with the movable plate 17, the movable plate 17 is elastically embedded in the monitoring plate 16 through a spring, the movable abutting plate 15 and the movable plate 17 are attached to the bottom of the fixed top plate 13, the movable abutting plate 15 extends to the lower part of the through hole 14 and abuts against the driving telescopic rod 7, when the driving telescopic rod 7 controls the puncture needle to move downwards, the movable abutting plate 15 can be driven to move downwards, the self-disengaging monitoring mechanism 12 can move downwards synchronously, and an elastic buffer piece can be arranged between the driving telescopic rod 7 and the movable abutting plate 15 during specific use, or the driving telescopic rod 7 is set as a multi-stage telescopic rod, so that after the self-separation monitoring mechanism 12 is attached to the battery pack 9, the probe can be continuously controlled to penetrate into the battery pack 9, meanwhile, the self-separation monitoring mechanism 12 monitors different local numerical values on the surface of the battery pack 9 by arranging a plurality of groups of temperature sensors 20, by adjusting corresponding materials of the sensing block 21, when the battery pack 9 burns, fires, burns or explodes, the sensing block 21 is fused when reaching a proper temperature, so that the supporting force between the movable plates 17 disappears, the gap 19 is gradually reduced under the action of the first spring 18, the movable plates 17 are driven to approach each other, so that the movable resisting plate 15 moves towards the movable plates 17 and is separated from the lower part of the through hole 14, so that the driving telescopic rod 7 is separated from the self-separation monitoring mechanism 12 in a butting way, at the moment, the self-separation monitoring mechanism 12 rebounds to rise under the action of elastic force, so as to effectively protect the temperature sensor 20 inside the self-separation monitoring mechanism 12 from the battery pack 9, further, the temperature sensor 20 is elastically arranged through the elastic telescopic rod 23, and the temperature sensor 20 is attached to the filtering frame 20 connected to the gas-permeable grid frame 24, so as to prevent the temperature sensor 20 from being damaged by the gas-permeable filtering device, thereby, the gas-permeable grid-permeable filtering device 20 is further connected to the filtering device 22 connected to the gas-permeable connecting rod 17, the gas-permeable filtering device 22, and the gas-permeable grid device 22, prevent that macromolecular particles from blockking up the sack 25 that gathers dust and causing the filtration efficiency to reduce, and the joint frame 28 sets up at the opposite side, gaseous inside that gets into the sack 25 that gathers dust through the middle part of joint frame 28, catch through the sack 25 that gathers dust and avoid polluting the peripheral air influence test personnel health status of equipment in gaseous, and gas supply unit 4 supplies gas to detection chamber 6 inside through second spring 32, when the burning of group battery 9 thermal runaway or explosion, from taking off monitoring mechanism 12 automatic protection under the effect of response piece 21, from taking off monitoring mechanism 12 shifts up this moment, through moving up and then driving actuating lever 11 removal from taking off monitoring mechanism 12, and because actuating lever 11 passes through joint piece 31 and pinion rack 29 elastic clip and, and then drive filter equipment 24 shifts up, and because filter equipment 24 and joint frame 28 are fixed continuous, can drive active mechanism 3 and move to ventilative grid 2 and go out the work of gathering dust, and gas supply unit 4 is equipped with movable groove 33 and spacing groove 34, make actuating lever 11 closely laminate with pinion rack 29, guarantee the stability of joint.
Claims (5)
1. A battery pack detection apparatus includes a device main body, characterized in that: the device comprises a device body and is characterized in that a detection box body is fixedly connected to the lower end face of the device body, a breathable grid is arranged on the side end face of the detection box body, an air supply device is fixedly connected to the lower end face of the detection box body, an active dust collecting mechanism is arranged inside the air supply device, a detection cavity is arranged inside the detection box body, a battery pack is fixedly connected to the bottom of the detection cavity through a fixing tool, a self-disengaging monitoring mechanism for monitoring the temperature of the fixing tool is elastically connected to the inside of the detection cavity, a driving telescopic rod is fixedly arranged in the middle of the detection cavity, a puncture needle is arranged at the tail end of the driving telescopic rod, and the self-disengaging monitoring mechanism is intermittently abutted to the side end face of the driving telescopic rod;
when the battery pack is ignited and burns or explodes, the self-disengaging monitoring mechanism automatically disengages from the surface of the battery pack, and the active dust collecting mechanism moves to be attached to the side end face of the air-permeable grid;
the active dust collection mechanism comprises a filtering device, a dust collection cloth bag, a connecting rod, a sliding rod and a connecting frame, the connecting frame is attached to the side end face of the active dust collection mechanism, the dust collection cloth bag is communicated with the middle of the connecting frame, the filtering device is movably embedded in the air supply device, the sliding rod is fixedly connected to the two sides of the connecting frame and the filtering device, the connecting frame and the filtering device are fixedly connected through the connecting rod, and the side end face of the detection box is provided with a sliding groove matched with the sliding rod;
a filter screen is arranged in the middle of the filter device in an assembled mode, a toothed plate is fixedly connected to one layer of the end face of the side of the filter device, a driving rod is fixedly connected to the lower end face of the self-disengaging monitoring mechanism, and a clamping block matched with the toothed plate is elastically embedded in the driving rod through a second spring;
the middle part of the gas supply device is provided with a gas hole, the inside of the gas supply device is provided with a movable groove matched with the connecting rod and the sliding rod, the movable groove is communicated with a limiting groove, and the limiting groove is matched with the driving rod.
2. A battery pack inspection apparatus according to claim 1, wherein: the self-disengaging monitoring mechanism comprises a fixed top plate and a monitoring plate, wherein the fixed top plate is elastically connected inside the detection cavity, the monitoring plate is attached to the lower end face of the fixed top plate, and the middle of the fixed top plate is provided with a through hole which is attached to the side end face of the driving telescopic rod.
3. A battery pack inspection apparatus according to claim 2, wherein: the monitoring plate is internally provided with a plurality of groups of movable plates, gaps are formed between every two adjacent movable plates, the movable plates are elastically connected through a first spring, one end, deviating from the monitoring plate, of each movable plate is fixedly connected with a movable abutting plate, and the movable abutting plates extend to the lower portion of the through hole and abut against the driving telescopic rod.
4. The battery pack detection apparatus and method of use of claim 3, wherein: the clearance inner wall both sides are supported and are inlayed and be equipped with the response piece, the mid-mounting in clearance has temperature sensor, temperature sensor fixed connection has elastic telescopic link, elastic telescopic link deviates from temperature sensor's one end and the fixed roof lower extreme face is fixed continuous, and is adjacent fly leaf both sides fixedly connected with inclined plane portion.
5. A method of using a battery pack inspection apparatus as claimed in any one of claims 1 to 4, wherein: the group battery passes through fixed frock to be fixed in the inside that detects the chamber, during the detection, drive telescopic link control pjncture needle moves down and puncture the group battery and carry out the puncture test, move from breaking away from monitoring mechanism and move down and laminate with the group battery surface in step when drive telescopic link moves down, from breaking away from monitoring mechanism and being used for monitoring the temperature everywhere on the group battery surface, when the group battery fires burning or explodes, from breaking away from monitoring mechanism will drop automatically with drive telescopic link group battery surface, and drive active dust collecting mechanism and remove to laminate with ventilative grid, air feeder is in carrying out the air feed ventilation to detecting intracavity portion, make the flue gas by ventilative grid discharge, collect the smoke and dust through active dust collecting mechanism.
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