Protective electrical contact battery connector detection device

Abstract

The application relates to the technical field of lithium battery production, and discloses a protective electric contact battery connector detection device, which comprises an operation table, a feeding assembly for batch feeding lithium batteries to a test position, a test assembly for short circuit testing of the lithium batteries, a cooling assembly for cooling the test assembly, and a charging assembly for supplementing the electric quantity of the lithium batteries. Through cooperation of the feeding assembly and the test assembly, the hopper can automatically batch discharge four battery bodies as a batch to the material table, and the multiple material tables move to feed the battery bodies to four short-circuit wires for short circuit testing, so that the automatic feeding effect is achieved; the four short-circuit wires cooperate with eight contacts to perform short circuit testing on the four battery bodies, so that the effect of automatically and simultaneously performing short circuit testing on the four battery bodies is achieved; and the wiring process avoids manual operation, thereby improving the work efficiency and the safety of the workers.

Description

Technical Field

[0001] This invention relates to the field of lithium battery manufacturing technology, and more specifically to a protective electrical contact battery connector testing device. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become mainstream. During the production process of lithium-ion batteries, short-circuit testing is required to evaluate their safety and stability under short-circuit conditions. While lithium-ion batteries are very reliable under normal use, they may overheat, catch fire, or explode under extreme conditions such as short circuits. Therefore, short-circuit testing ensures that the battery can be safely handled under these conditions and meets relevant safety standards.

[0003] Chinese patent CN220323398U discloses a "lithium battery short-circuit detection device", which includes a main clamp arm and a secondary clamp arm, which are rotatably connected. The front ends of both the main and secondary clamp arms have grooves, and the rear ends of both arms have slots. Cable ties are provided on the outside of the slots, with Velcro straps at both ends. Conductive terminals are provided inside the slots. The main and secondary clamp arms form a clamping structure to hold and fix the lithium battery to be tested. During clamping, an electrical connection is established between the conductive terminals and the anode and cathode of the lithium battery through anode and cathode patches. This transforms the contact between the meter and the battery into a connection between the meter and the conductive terminals, making clamping and fixing easier, improving the stability of the electrical signal during testing and the simplicity of the connection process, facilitating repeated testing, and reducing the cost of lithium battery acceptance and inspection.

[0004] However, the existing technology has the following problems:

[0005] 1. Current technology for short-circuit testing of lithium batteries usually requires manual testing of each battery individually, which is inefficient. Since lithium batteries are at risk of overheating and exploding during short-circuit testing, manual operation by staff poses a significant safety hazard. Summary of the Invention

[0006] The purpose of this invention is to provide a protective electrical contact battery connector testing device to solve the above-mentioned problems and overcome the defects of the prior art, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The present invention provides a protective electrical contact battery connector testing device, comprising: an operating table; a feeding assembly for feeding lithium batteries in batches to the testing position; a testing assembly for performing short-circuit tests on the lithium batteries; a cooling assembly for cooling the testing assembly; and a charging assembly for replenishing the lithium batteries' charge. The operating table is equipped with a main unit and a sliding plate. The feeding assembly, the testing assembly, the cooling assembly, and the charging assembly are all located on the operating table.

[0009] The feeding assembly includes a motor, which is mounted on an operating table via a bracket. A base is mounted on the operating table, and a main shaft and a driven shaft are rotatably mounted on the base. The main shaft is connected to the output end of the motor. A conveyor belt is sleeved on the outer wall of the main shaft and the driven shaft. Multiple material platforms are connected to the conveyor belt, and four battery bodies are placed on the material platforms. A hopper is mounted on the operating table via a bracket. A first guide fork and a third guide fork are mounted on the inner wall of the hopper. A second guide fork is slidably mounted on the inner wall of the hopper. A roller is connected to the rear side of the second guide fork. Cams are respectively connected to the rear ends of the main shaft and the driven shaft. Two first frames are mounted on the operating table, and a sliding groove rod is slidably mounted between the two first frames. The sliding groove rod has two inner grooves. The two cams are slidably connected to the two inner grooves of the sliding groove rod via bearings. A diamond-shaped rod is connected to the sliding groove rod, and the inner wall of the diamond-shaped rod is slidably connected to the roller.

[0010] The test assembly includes a second frame, a right-angle rod connected to the slide bar, the end of the right-angle rod away from the slide bar being slidably connected to the second frame, a cooling box connected to the right-angle rod, four shorting wires connected inside the cooling box, both ends of the shorting wires being located outside the cooling box, two abutment rods connected to the right-angle rod, two insulating blocks connected to the base via springs, four contacts connected to the inner wall of the insulating blocks, and a temperature probe installed on the base.

[0011] Preferably, the second guide fork is located between the first guide fork and the third guide fork, the third guide fork is located above the conveyor belt, and the first, second and third guide forks are each provided with four feeding troughs.

[0012] Preferably, the main unit is located in front of the conveyor belt, the slide plate is located to the left of the conveyor belt, the temperature probe is located between the cooling box and the slide plate, and all eight contacts are connected to the main unit via wires.

[0013] Preferably, two short rods are installed on the first guide fork, and a draining frame is sleeved on the two short rods. A pry bar is rotatably connected to the inner wall of the hopper, and a lever is connected to the diamond-shaped rod. One end of the pry bar is connected to the draining frame, and the other end of the pry bar is located on the movement trajectory of the lever.

[0014] Preferably, the two insulating blocks are located on both sides of the conveyor belt, the two abutting rods contact the two insulating blocks respectively during the movement, and the eight contacts contact the two ends of the four shorting wires respectively during the movement.

[0015] Preferably, the cooling assembly includes a fixed rod mounted on a sliding rod, a connecting rod hinged to the fixed rod, a piston slidably mounted on the operating platform, the piston being hinged to the end of the connecting rod away from the fixed rod, a pressure chamber mounted on the operating platform, the inner wall of the pressure chamber being slidably connected to the outer wall of the piston, a cooling pipe connected to the pressure chamber, the end of the cooling pipe away from the pressure chamber being connected to a cooling box, a return pipe connected to the cooling box, a buffer chamber mounted on the operating platform, the end of the return pipe away from the cooling box being connected to the buffer chamber, a connecting pipe connecting the buffer chamber and the pressure chamber, and check valves respectively installed inside the connecting pipe and the cooling pipe.

[0016] Preferably, the charging assembly includes a third frame mounted on a base. Two movable blocks are slidably mounted on the third frame, and a gear is rotatably mounted on the third frame. Racks are mounted on the two movable blocks respectively, and the two racks are arranged in a circular array with the gear as the center. Both racks mesh with the gear. A sliding column is connected to the sliding rod, and a round rod is mounted on one of the movable blocks via a bracket. The outer wall of the round rod is slidably connected to the inner wall of the sliding column.

[0017] Preferably, a charging module is installed on the operating table. The charging module is connected to the host via wires. Eight charging cables are connected to the charging module. The eight charging cables pass through two movable blocks respectively. The movable blocks are connected to four of the charging cables.

[0018] Preferably, two baffles are rotatably mounted on the base, and a torsion spring is connected between the baffles and the base. The two baffles are located below the two movable blocks, and the two baffles are in contact with the ends of the eight charging cables away from the charging module.

[0019] The beneficial effects are:

[0020] 1. This protective electrical contact battery connector testing device, through the cooperation of the feeding component and the testing component, enables the hopper to automatically feed four battery bodies at a time onto the feeding platform. Multiple feeding platforms move to transport the battery bodies to four short-circuit terminals for short-circuit testing, achieving the effect of automatic feeding. The four short-circuit terminals, in cooperation with eight contacts, perform short-circuit testing on the four battery bodies, achieving the effect of automatically and simultaneously short-circuiting four battery bodies. The wiring process avoids manual operation, improving work efficiency and worker safety. During feeding, the unblocking frame can promote the feeding process through movement, preventing material blockage in the hopper from affecting subsequent operations.

[0021] 2. This protective electrical contact battery connector detection device, through the setting of the cooling component, enables the coolant in the cooling box to cool the four short wires, preventing the short wires from overheating and burning after long-term use, thus extending the service life of the short wires. In addition, the coolant can circulate between the cooling box, buffer chamber and pressure chamber, allowing the coolant to dissipate its own heat during the flow process, maintaining the cooling effect of the coolant in the cooling box.

[0022] 3. This protective electrical contact battery connector testing device, through the setting of the charging component, enables the battery body to be replenished with power through the cooperation of the charging module and eight charging cables before short circuit testing. This avoids the battery body being unable to meet the required short circuit duration during subsequent short circuit testing due to insufficient power, thus affecting the accuracy of the test results. The setting of two baffles enables the charging cables to be protected during the periods when the eight charging cables are not working, extending the service life of the charging cables. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the feeding component structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the slide bar structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the second guide fork structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the unblocking frame structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the detection component structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the right-angle rod structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the cooling component structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the charging component structure of the present invention;

[0033] Figure 10 This is a schematic diagram of the active block structure of the present invention;

[0034] Figure 11 This is a schematic diagram of the baffle structure of the present invention.

[0035] The reference numerals in the attached drawings are explained as follows: 1. Control panel; 2. Feeding assembly; 21. Motor; 22. Main shaft; 23. Driven shaft; 24. Base; 25. Conveyor belt; 26. Material platform; 27. Hopper; 28. First guide fork; 29. ​​Second guide fork; 210. Third guide fork; 211. Cam; 212. First frame; 213. Slide bar; 214. Diamond-shaped bar; 215. Roller; 216. Unblocking frame; 217. Short rod; 218. Pry bar; 219. Toggle bar; 3. Test assembly; 31. Frame 2; 32. Right-angle rod; 33. Shorting wire; 34. Contact rod; 35. Contact; 36. Insulating block; 4. Cooling assembly; 41. Cooling box; 42. Fixing rod; 43. Connecting rod; 44. Piston; 45. Pressure chamber; 46. Cooling pipe; 47. Return pipe; 48. Buffer chamber; 49. Connecting pipe; 5. Charging assembly; 51. Frame 3; 52. Movable block; 53. Gear; 54. Rack; 55. Charging cable; 56. Charging module; 57. Slide column; 58. Round rod; 59. Baffle; 510. Torsion spring; 6. Main unit; 7. Temperature probe; 8. Slide plate; 9. Battery body. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention. Example 1

[0037] Please see Figure 1 - Figure 7A protective electrical contact battery connector testing device includes: an operating table 1; a main unit 6 and a slide plate 8 mounted on the operating table 1; a feeding assembly 2 for feeding lithium batteries in batches to the testing position, the feeding assembly 2 being disposed on the operating table 1, the feeding assembly 2 including a motor 21, the motor 21 being mounted on the operating table 1 via a bracket, a base 24 being mounted on the operating table 1, a main shaft 22 and a driven shaft 23 being rotatably mounted on the base 24, the main shaft 22 being connected to the output end of the motor 21, a conveyor belt 25 being sleeved on the outer wall of the main shaft 22 and the driven shaft 23, multiple material platforms 26 being connected to the conveyor belt 25, four battery bodies 9 being placed on the material platforms 26, a hopper 27 being mounted on the operating table 1 via a bracket, and a first guide fork 28 and a third guide fork 28 being mounted on the inner wall of the hopper 27. A second guide fork 29 is slidably mounted on the inner wall of the guide fork 210 and the hopper 27. The second guide fork 29 is located between the first guide fork 28 and the third guide fork 210. The third guide fork 210 is located above the conveyor belt 25. The first guide fork 28, the second guide fork 29, and the third guide fork 210 are each provided with a feeding groove. A roller 215 is connected to the rear side of the second guide fork 29. Cams 211 are connected to the rear ends of the main shaft 22 and the driven shaft 23, respectively. Two first frames 212 are mounted on the operating table 1. A sliding groove rod 213 is slidably mounted between the two first frames 212. The sliding groove rod 213 is provided with two inner sliding grooves. The two cams 211 are slidably connected to the two inner sliding grooves of the sliding groove rod 213 through bearings. The two cams 211 drive the sliding groove rod 213 through the bearings. The two No. 1 frames 212 slide up and down reciprocally. The slide bar 213 drives the rhomboid bar 214 to move up and down reciprocally. The rhomboid bar 214 is connected to the slide bar 213. The inner wall of the rhomboid bar 214 is slidably connected to the roller 215. When the rhomboid bar 214 moves downward, the roller 215 first slides along the straight edge of the rhomboid bar 214. When the roller 215 contacts a sloping edge above the rhomboid bar 214, the roller 215 is pushed to the left by the counterforce of the rhomboid bar 214. When the roller 215 slides to the left, it drives the No. 2 guide fork 29 to slide to the left. When the rhomboid bar 214 moves downward to its position and then moves upward, the roller 215 contacts a sloping surface below the rhomboid bar 214 after a period of time and slides to the right to reset. The No. 2 guide fork 29 slides to the right simultaneously. After the second guide fork 29 moves to the left, the four battery bodies 9 above the second guide fork 29 fall into the four feeding slots on the second guide fork 29. After the second guide fork 29 moves to the right, the four feeding slots of the second guide fork 29 connect with the four feeding slots of the third guide fork 210, and the four battery bodies 9 inside the second guide fork 29 fall into the four feeding slots of the third guide fork 210. The four battery bodies 9 slide down the four feeding slots of the third guide fork 210 onto the material platform 26 below. Two short rods 217 are installed on the first guide fork 28, and a draining frame 216 is sleeved on the two short rods 217. A pry bar 218 is rotatably connected to the inner wall of the hopper 27. A lever 219 is connected to the diamond rod 214. One end of the pry bar 218 is connected to the draining frame 216.The other end of the pry bar 218 is located on the movement trajectory of the lever 219. There is a certain gap at the connection between the unblocking frame 216 and the two short rods 217, allowing the unblocking frame 216 to move on the two short rods 217. When the other end of the pry bar 218 moves upward, it drives the unblocking frame 216 upward. When the lever 219 is no longer in contact with the pry bar 218, the unblocking frame 216 resets due to its own gravity, and the pry bar 218 resets accordingly. The movement of the unblocking frame 216 promotes the descent of multiple battery bodies 9 within the hopper 27, preventing blockage.

[0038] Test assembly 3 is used for short-circuit testing of lithium batteries. Test assembly 3 is mounted on the operating table 1 and includes a second frame 31. A right-angle rod 32 is connected to a sliding rod 213. The end of the right-angle rod 32 away from the sliding rod 213 is slidably connected to the second frame 31. A cooling box 41 is connected to the right-angle rod 32. Four shorting wires 33 are connected inside the cooling box 41. The coolant inside the cooling box 41 cools the four shorting wires 33 to prevent them from overheating and burning out after prolonged short-circuit testing. Both ends of the shorting wires 33 are positioned... Outside the cooling box 41, two abutment rods 34 are connected to the right-angle rod 32. Two insulating blocks 36 are connected to the base 24 by springs. Four contacts 35 are connected to the inner wall of the insulating blocks 36. A temperature probe 7 is installed on the base 24. The two insulating blocks 36 are located on both sides of the conveyor belt 25. During movement, the two abutment rods 34 contact the two insulating blocks 36 respectively. During movement, the eight contacts 35 contact the two ends of the four shorting wires 33 respectively. All eight contacts 35 are connected to the main unit 6 through wires. The main unit 6 is located in front of the conveyor belt 25. The slide plate 8 is located to the left of the conveyor belt 25, and the temperature probe 7 is located between the cooling box 41 and the slide plate 8. When the four battery bodies 9 move to below the four shorting wires 33, the motor 21 stops rotating, and the battery bodies 9 stop moving. During this process, the four shorting wires 33 move downward, and the two ends of the four shorting wires 33 move to the two ends of the four battery bodies 9 respectively. During the movement of the eight contacts 35, they contact the two ends of the four shorting wires 33, so that the eight contacts 35 press the two ends of the four shorting wires 33 against the two ends of the four battery bodies 9. When the two ends of the shorting wires 33 contact the two ends of the battery bodies 9, the battery bodies 9 are short-circuited. At the same time, the two contacts 35 transmit the current and voltage data to the host 6 through the wires. The host 6 displays the current and voltage data of the battery bodies 9 through the display. The operator can observe the changes in current and voltage during the short circuit of the battery bodies 9. At the same time, the temperature probe 7 detects the temperature of the short-circuited battery bodies 9 and transmits the temperature data to the host 6 through the wires. The host 6 can display the current, voltage, and temperature data of the battery bodies 9, achieving the effect of automatic testing.

[0039] Through the cooperation of the feeding component 2 and the testing component 3, the hopper 27 can automatically feed four battery bodies 9 into the feeding platform 26 in batches. Multiple feeding platforms 26 move to transport the battery bodies 9 to four short-circuit wires 33 for short-circuit testing, achieving the effect of automatic feeding. The four short-circuit wires 33, in cooperation with eight contacts 35, perform short-circuit testing on the four battery bodies 9, achieving the effect of automatically and simultaneously performing short-circuit testing on the four battery bodies 9. The wiring process avoids manual operation, improving work efficiency and the safety of workers. At the same time, the unblocking frame 216 can promote the feeding process through movement, preventing material blockage in the hopper 27 from affecting subsequent operations.

[0040] Furthermore, please refer to Figure 8 Cooling assembly 4 is used to cool test assembly 3. Cooling assembly 4 is mounted on operating table 1 and includes a fixed rod 42 mounted on a sliding rod 213. A connecting rod 43 is hinged to the fixed rod 42. A piston 44 is slidably mounted on operating table 1, and the piston 44 is hinged to the end of the connecting rod 43 away from the fixed rod 42. A pressure chamber 45 is mounted on operating table 1, and the inner wall of the pressure chamber 45 is slidably connected to the outer wall of the piston 44. A cooling pipe 46 is connected to the pressure chamber 45, and the end of the cooling pipe 46 away from the pressure chamber 45 is connected to a cooling box 41. A return pipe 47 is also connected to the cooling box 41. A buffer chamber 48 is mounted on operating table 1, and the end of the return pipe 47 away from the cooling box 41 is connected to the buffer chamber 48. A connecting pipe 49 connects the buffer chamber 48 and the pressure chamber 45. When the piston 44 moves to the right, the pressure forces the coolant in the pressure chamber 45 through the cooling pipe 46. The coolant is delivered to the cooling box 41. The coolant in the cooling box 41 is then transported to the buffer chamber 48 by the return pipe 47 under pressure. When the piston 44 moves to the left, the pressure chamber 45 uses negative pressure to draw the coolant in the buffer chamber 48 into the buffer chamber 48 through the connecting pipe 49, achieving the effect of coolant circulation. The connecting pipe 49 and the cooling pipe 46 are respectively equipped with check valves, which prevent the coolant from flowing back. Through the arrangement of the cooling component 4, the coolant in the cooling box 41 cools the four shorting wires 33, preventing the shorting wires 33 from overheating and burning after long-term use, thus extending the service life of the shorting wires 33. Furthermore, the coolant can circulate between the cooling box 41, the buffer chamber 48, and the pressure chamber 45, allowing the coolant to dissipate its own heat during the flow process and maintaining the cooling effect of the coolant in the cooling box 41.

[0041] Furthermore, please refer to Figure 9 - Figure 11Charging component 5, used to replenish the lithium battery's power, is mounted on the operating table 1. Charging component 5 includes a third frame 51, which is mounted on the base 24. Two movable blocks 52 are slidably mounted on the third frame 51. A gear 53 is rotatably mounted on the third frame 51. Racks 54 are mounted on the two movable blocks 52, arranged in a circular array around the gear 53. Both racks 54 mesh with the gear 53. When one rack 54 moves, it drives the other rack 54 to move in the opposite direction via the gear 53. The sliding rod 213... A sliding column 57 is connected, and a round rod 58 is mounted on one of the movable blocks 52 via a bracket. The outer wall of the round rod 58 is slidably connected to the inner wall of the sliding column 57. A charging module 56 is installed on the operating table 1. The charging module 56 is connected to the main unit 6 via wires. Eight charging cables 55 are connected to the charging module 56. The eight charging cables 55 pass through two movable blocks 52 respectively. The movable blocks 52 are connected to four charging cables 55. When one of the material platforms 26 moves to below the third frame 51, the eight charging cables 55 move towards the two ends 9 of the four battery bodies respectively. When the four battery bodies 9 are in contact with the two ends of the main unit 5, the battery bodies 9 and the two movable blocks 52 stop moving. The main unit 6 transmits power to the charging module 56 through the wires. The charging module 56 charges the four battery bodies 9 through eight charging cables 55. Charging and short-circuit testing are performed simultaneously. Two baffles 59 are rotatably mounted on the base 24. A torsion spring 510 connects the baffles 59 to the base 24. The two baffles 59 are located below the two movable blocks 52, and the two baffles 59 are in contact with the ends of the eight charging cables 55 away from the charging module 56. The baffles 59 are in contact with the ends of the eight charging cables 55 away from the charging module 56 during charging. The period during which the wire 55 is not in operation protects the end of the charging cable 55. The charging component 5 allows the battery body 9 to be replenished with power through the charging module 56 and the eight charging cables 55 before a short-circuit test, preventing insufficient power from causing the short-circuit duration to fall short of requirements during the subsequent short-circuit test and thus affecting the accuracy of the test results. The two baffles 59 protect the charging cables 55 during the periods when they are not in operation, extending their lifespan.

[0042] Using the above structure, the working principle of this case is as follows: Workers feed multiple battery bodies 9 into the hopper 27. Four battery bodies 9 fall along the four feed slots of the first guide fork 28 onto the second guide fork 29. The second guide fork 29 temporarily blocks the falling path of the battery bodies 9. After starting the motor 21, the motor 21 drives the main shaft 22 to rotate, which in turn drives the conveyor belt 25 to rotate. The conveyor belt 25 drives the driven shaft 23 to rotate, and multiple material platforms 26 on the conveyor belt 25 move along with it. The main shaft 22 and the driven shaft 23 rotate synchronously, and each of the main shaft 22 and the driven shaft 23 drives two cams 211 to rotate. The two cams 211, through bearings, drive the sliding rod 213 to slide up and down on the two first frames 212. The sliding rod 213 drives the rhomboid rod 214 to reciprocate up and down. When the rhomboid rod 214 moves downward, the roller 215 first slides along the straight edge of the rhomboid rod 214. When the roller 215 contacts an inclined surface above the rhomboid rod 214, it is pushed to the left by the counterforce of the rhomboid rod 214. As the roller 215 slides to the left, it drives the second guide fork 29 to slide to the left. When the rhomboid rod 214 moves downward to its final position and then moves upward, the roller 215 contacts an inclined surface below the rhomboid rod 214 after a period of time and slides to the right to reset. The second guide fork 29 simultaneously slides to the right to reset, so that for every revolution of the cam 211, the second guide fork 29 can perform one reciprocating motion. The second guide fork 29 moves to the left. Afterwards, the four battery bodies 9 above the second guide fork 29 fall into the four feeding slots on the second guide fork 29. After the second guide fork 29 moves to the right, the four feeding slots of the second guide fork 29 connect with the four feeding slots of the third guide fork 210. The four battery bodies 9 in the second guide fork 29 fall into the four feeding slots of the third guide fork 210. The four battery bodies 9 slide down the four feeding slots of the third guide fork 210 onto the material platform 26 below. During subsequent movement, the material platform 26 transports the four battery bodies 9 to the test assembly 3 for testing. Multiple battery bodies 9 in the hopper 27 fall intermittently onto other material platforms 26 according to the above movement trajectory as the second guide fork 29 moves. As the rhomboid rod 214 moves downwards... When the rhomboid rod 214 drives the lever 219 to move downward, the lever 219 contacts one end of the pry bar 218 during its downward movement and drives one end of the pry bar 218 downward. Using the lever principle, the other end of the pry bar 218 moves upward. Since there is a certain gap at the connection between the unblocking frame 216 and the two short rods 217, the unblocking frame 216 can move on the two short rods 217. When the other end of the pry bar 218 moves upward, it drives the unblocking frame 216 to move upward. When the lever 219 is no longer in contact with the pry bar 218, the unblocking frame 216 resets by its own gravity, and the pry bar 218 resets accordingly. When the unblocking frame 216 moves, it can promote the falling of multiple battery bodies 9 in the hopper 27 and avoid blockage.When the sliding rod 213 reciprocates up and down, it drives the right-angle rod 32 to slide up and down on the second frame 31. When the right-angle rod 32 moves downward, it drives the cooling box 41 to move downward. The cooling box 41 drives the four shorting wires 33 to move downward. When the right-angle rod 32 moves downward, it also drives the two contact rods 34 to move downward. When the two contact rods 34 move downward, they contact the two insulating blocks 36 respectively, causing the two insulating blocks 36 to move closer to each other along the arc of the edges of the two contact rods 34. When the two insulating blocks 36 move, they drive the eight contacts 35. In synchronous motion, as the right-angle rod 32 moves downward, one of the material platforms 26 moves four battery bodies 9 to the left. When the four battery bodies 9 move below the four shorting wires 33, the motor 21 stops rotating, and the battery bodies 9 stop moving. During this process, the four shorting wires 33 move downward, and their ends move to the ends of the four battery bodies 9 respectively. During this movement, the eight contacts 35 contact the ends of the four shorting wires 33, causing the eight contacts 35 to press the ends of the four shorting wires 33 against the ends of the four battery bodies 9. When the ends of the shorting wires 33 contact the ends of the battery bodies 9, a short circuit occurs in the battery bodies 9. At the same time, two contacts 35 transmit current and voltage data to the host 6 through wires. The host 6 displays the current and voltage data of the battery bodies 9 on the display. The operator can observe the changes in current and voltage during the short circuit of the battery bodies 9. Simultaneously, the temperature probe 7 detects the temperature of the short-circuited battery bodies 9 and transmits the temperature data to the host 6 through wires. The host 6 can display the current, voltage, and temperature data of the battery bodies 9. After a set time of testing, motor 21 rotates again, right-angle rod 32 begins to move upward, and two contact rods 34 gradually disengage from the two insulating blocks 36. The two insulating blocks 36 are reset by the spring force between them and the base 24. The tested battery body 9 moves to the left along with the material platform 26. When the material platform 26 moves to the leftmost side of the conveyor belt 25 and begins to flip downward, the battery body 9 falls onto the slide plate 8 and slides to the next process, achieving the effect of automatic testing. Each rotation of motor 21 moves multiple material platforms 26 a fixed distance, and hopper 27 performs one operation. During the unloading process, four battery bodies 9 fall onto the material platform 26, which is positioned just below the third guide fork 210. At the same time, multiple material platforms 26, each with four battery bodies 9, move to the left. The motor 21 rotates once and then stops for a period of time. During this time, one material platform 26 is located below the cooling box 41 for short-circuit testing, and another material platform 26 is located below the third frame 51 for charging. The time during which the motor 21 stops rotating is equal to the time during which the battery bodies 9 undergo short-circuit testing. The operator can adjust the stopping time of the motor 21 through the controller according to the testing requirements.Through the cooperation of the feeding component 2 and the testing component 3, the hopper 27 can automatically feed four battery bodies 9 in batches onto the feeding platform 26. Multiple feeding platforms 26, through movement, transport the battery bodies 9 to four short-circuit wires 33 for short-circuit testing, achieving automatic feeding. The four short-circuit wires 33, in cooperation with eight contacts 35, perform short-circuit testing on the four battery bodies 9, achieving simultaneous automatic short-circuit testing of all four battery bodies 9. The wiring process avoids manual operation, improving both work efficiency and worker safety. Simultaneously, the unblocking frame 216 moves to facilitate the feeding process, preventing blockages in the hopper 27 that could affect subsequent operations.

[0043] Cooling box 41, buffer chamber 48, and pressure chamber 45 are filled with coolant. The coolant in cooling box 41 cools the four shorting wires 33 to prevent them from overheating and burning out after prolonged short-circuit testing. When the sliding rod 213 moves up and down, it drives the fixed rod 42 to move synchronously. The fixed rod 42 drives the piston 44 to move left and right on the operating table 1 via connecting rod 43. When the piston 44 moves to the right, it uses pressure to transport the coolant in pressure chamber 45 to cooling box 41 through cooling pipe 46. The coolant in cooling box 41 is then transported to buffer chamber 48 through return pipe 47. When the piston 44 moves to the left, the pressure chamber 45... The coolant in the buffer chamber 48 is drawn into the buffer chamber 48 through the connecting pipe 49 using negative pressure. The above steps are repeated to achieve the effect of coolant circulation. The check valves in the connecting pipe 49 and the cooling pipe 46 prevent coolant backflow. The cooling component 4 allows the coolant in the cooling box 41 to cool the four shorting wires 33, preventing them from overheating and burning out after prolonged use, thus extending their service life. The coolant can circulate between the cooling box 41, the buffer chamber 48, and the pressure chamber 45, allowing it to dissipate its own heat during the flow and maintaining the cooling effect of the coolant in the cooling box 41.

[0044] When the slide bar 213 reciprocates up and down, it drives the slide column 57 to move synchronously. When the slide column 57 moves downward, it drives one of the movable blocks 52 to move closer to the gear 53 via the round rod 58. Since the movement of one rack 54 will drive the other rack 54 to move in the opposite direction via the gear 53, and the two racks 54 are respectively connected to the two movable blocks 52, when one movable block 52 moves closer to the gear 53, the other movable block 52 also moves closer to the gear 53. The two movable blocks 52 drive the eight charging cables 55 to move synchronously. When one of the material platforms 26 moves to below the third frame 51, the eight charging cables 55 move closer to the two ends 9 of the four battery bodies. When the eight charging cables 55 contact the two ends of the four battery bodies 9, the battery bodies 9 and the two movable blocks 52 stop moving. The host 6 transmits power to the charging module 56 through the wires. The charging module 56 charges the four battery bodies 9 through the eight charging cables 55. Charging and short circuit testing are carried out simultaneously. When the slide bar 57 moves upward, the slide... The slotted column 57 drives one of the movable blocks 52 to reset via the round rod 58, and the eight charging cables 55 reset accordingly. When the four charging cables 55 on the same side move towards the gear 53, one end of the four charging cables 55 pushes the baffle 59, causing the baffle 59 to swing. Before the charging cables 55 contact the battery body 9, the baffle 59 disengages from the ends of the charging cables 55. After the four charging cables 55 reset, the baffle 59 resets along with the four charging cables 55 through the elastic force of the torsion spring 510. The baffle 59 is inactive when the charging cables 55 are not in operation. The charging module 5 protects the end of the charging cable 55. The charging component 5 allows the battery body 9 to be charged before a short circuit test, thanks to the combined power of the charging module 56 and the eight charging cables 55. This prevents the battery body 9 from failing to meet the required short circuit duration during the subsequent short circuit test due to insufficient power, thus affecting the accuracy of the test results. The two baffles 59 protect the charging cables 55 during periods when they are not in operation, extending their lifespan.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A protective electrical contact battery connector testing device, characterized in that, include: Control panel (1); Feeding assembly (2) is used to deliver lithium batteries to the test location in batches; Test component (3) is used to perform short-circuit tests on lithium batteries; Cooling component (4) is used to cool test component (3); Charging component (5) is used to replenish the power of the lithium battery; The operating table (1) is equipped with a host (6) and a slide plate (8), the feeding component (2) is set on the operating table (1), the testing component (3) is set on the operating table (1), the cooling component (4) is set on the operating table (1), and the charging component (5) is set on the operating table (1). The feeding assembly (2) includes a motor (21), which is mounted on the operating table (1) via a bracket. A base (24) is mounted on the operating table (1), and a main shaft (22) and a driven shaft (23) are rotatably mounted on the base (24). The main shaft (22) is connected to the output end of the motor (21). A conveyor belt (25) is sleeved on the outer wall of the main shaft (22) and the driven shaft (23). Multiple material platforms (26) are connected to the conveyor belt (25), and four battery bodies (9) are placed on the material platforms (26). A hopper (27) is mounted on the operating table (1) via a bracket. A first guide fork (28) and a third guide fork (210) are mounted on the inner wall of the hopper (27). The inner wall of the hopper (27) is slidably fitted with a second guide fork (29), and a roller (215) is connected to the rear side of the second guide fork (29). The rear ends of the main shaft (22) and the driven shaft (23) are respectively connected with cams (211). Two first frames (212) are installed on the operating table (1). A sliding groove rod (213) is slidably installed between the two first frames (212). Two inner sliding grooves are provided on the sliding groove rod (213). The two cams (211) are slidably connected to the two inner sliding grooves of the sliding groove rod (213) through bearings. A rhombus rod (214) is connected to the sliding groove rod (213). The inner wall of the rhombus rod (214) is slidably connected to the roller (215). The test assembly (3) includes a second frame (31), a right-angle rod (32) connected to the slide bar (213), the end of the right-angle rod (32) away from the slide bar (213) being slidably connected to the second frame (31), a cooling box (41) connected to the right-angle rod (32), four short wires (33) connected inside the cooling box (41), both ends of the short wires (33) being located outside the cooling box (41), two abutment rods (34) connected to the right-angle rod (32), two insulating blocks (36) connected to the base (24) by springs, four contacts (35) connected to the inner wall of the insulating block (36), and a temperature probe (7) installed on the base (24).

2. The protective electrical contact battery connector testing device according to claim 1, characterized in that: The second guide fork (29) is located between the first guide fork (28) and the third guide fork (210). The third guide fork (210) is located above the conveyor belt (25). The first guide fork (28), the second guide fork (29) and the third guide fork (210) are respectively provided with four feeding troughs.

3. The protective electrical contact battery connector testing device according to claim 2, characterized in that: The host (6) is located in front of the conveyor belt (25), the slide plate (8) is located to the left of the conveyor belt (25), the temperature probe (7) is located between the cooling box (41) and the slide plate (8), and the eight contacts (35) are all connected to the host (6) by wires.

4. The protective electrical contact battery connector testing device according to claim 3, characterized in that: Two short rods (217) are installed on the first guide fork (28), and a draining frame (216) is sleeved on the two short rods (217). A pry bar (218) is rotatably connected to the inner wall of the hopper (27). A lever (219) is connected to the diamond rod (214). One end of the pry bar (218) is connected to the draining frame (216), and the other end of the pry bar (218) is located on the movement trajectory of the lever (219).

5. The protective electrical contact battery connector testing device according to claim 4, characterized in that: The two insulating blocks (36) are located on both sides of the conveyor belt (25), the two abutting rods (34) contact the two insulating blocks (36) respectively during the movement, and the eight contacts (35) contact the two ends of the four shorting wires (33) respectively during the movement.

6. The protective electrical contact battery connector testing device according to claim 5, characterized in that: The cooling assembly (4) includes a fixed rod (42) mounted on a sliding rod (213). A connecting rod (43) is hinged to the fixed rod (42). A piston (44) is slidably mounted on the operating table (1). The piston (44) is hinged to the end of the connecting rod (43) away from the fixed rod (42). A pressure chamber (45) is mounted on the operating table (1). The inner wall of the pressure chamber (45) is slidably connected to the outer wall of the piston (44). A connecting rod is connected to the pressure chamber (45). A cooling pipe (46) is connected to a cooling box (41) at one end away from the pressure chamber (45). A return pipe (47) is also connected to the cooling box (41). A buffer chamber (48) is installed on the operating table (1). The return pipe (47) is connected to the buffer chamber (48) at one end away from the cooling box (41). A connecting pipe (49) is connected between the buffer chamber (48) and the pressure chamber (45). Check valves are respectively installed inside the connecting pipe (49) and the cooling pipe (46).

7. The protective electrical contact battery connector testing device according to claim 6, characterized in that: The charging assembly (5) includes a third frame (51), which is mounted on a base (24). Two movable blocks (52) are slidably mounted on the third frame (51). A gear (53) is rotatably mounted on the third frame (51). A rack (54) is mounted on each of the two movable blocks (52). The two racks (54) are arranged in a circular array with the gear (53) as the center. Both racks (54) mesh with the gear (53). A sliding column (57) is connected to the sliding rod (213). A round rod (58) is mounted on one of the movable blocks (52) through a bracket. The outer wall of the round rod (58) is slidably connected to the inner wall of the sliding column (57).

8. The protective electrical contact battery connector testing device according to claim 7, characterized in that: A charging module (56) is installed on the operating table (1). The charging module (56) is connected to the host (6) through wires. Eight charging cables (55) are connected to the charging module (56). The eight charging cables (55) pass through two movable blocks (52) respectively. The movable blocks (52) are connected to four charging cables (55).

9. The protective electrical contact battery connector testing device according to claim 8, characterized in that: Two baffles (59) are rotatably mounted on the base (24). A torsion spring (510) is connected between the baffles (59) and the base (24). The two baffles (59) are located below the two movable blocks (52) respectively. The two baffles (59) are in contact with the ends of the eight charging cables (55) away from the charging module (56).

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