CN117554656A - Lithium battery cycle performance testing device - Google Patents
Lithium battery cycle performance testing device Download PDFInfo
- Publication number
- CN117554656A CN117554656A CN202311560495.9A CN202311560495A CN117554656A CN 117554656 A CN117554656 A CN 117554656A CN 202311560495 A CN202311560495 A CN 202311560495A CN 117554656 A CN117554656 A CN 117554656A
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- mounting
- arc
- seat
- conductive
- lithium battery
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- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 78
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 67
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000001802 infusion Methods 0.000 claims description 9
- 230000022131 cell cycle Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 description 10
- 238000000429 assembly Methods 0.000 description 10
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
-
- 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
- G01M7/02—Vibration-testing by means of a shake table
-
- 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
-
- 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
-
- 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
- G01R1/0416—Connectors, terminals
-
- 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]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
-
- 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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The utility model relates to the technical field of lithium batteries and discloses a lithium battery cycle performance testing device which comprises a tester body, wherein a testing area is arranged on the tester body, a supporting platform is fixedly arranged at the bottom of an inner cavity of the testing area, a testing platform is rotatably arranged at the top end of the supporting platform, a battery placing box is fixedly arranged at the top end of the testing platform, a swinging mechanism is arranged at the top end of the supporting platform and is in transmission connection with the battery placing box, and a vibrating mechanism is arranged at the bottom end of the testing platform; according to the utility model, the battery placing box is driven to swing left and right through the swinging mechanism so as to simulate the swinging process of the vehicle running on a bumpy road section, and the battery placing box is driven to vibrate through the vibrating mechanism so as to simulate the vibration generated when the vehicle engine works, so that the detection environment is more consistent with the actual use environment, and the accuracy of the detection result is improved.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery cycle performance testing device.
Background
The lithium battery cycle performance testing device is equipment for testing the cycle performance of a lithium ion battery. The change conditions of the charge-discharge capacity, the coulomb efficiency and the like of the lithium battery along with the charge-discharge cycle can be intuitively observed through the charge-discharge cycle test, so that analysis and judgment are made on the cycle performance of the lithium battery, including the cycle life of the battery, whether the battery has capacity to jump, and the like.
Chinese patent CN215219087U discloses a lithium cell charge-discharge detection device, the power distribution box comprises a box body, be provided with lithium cell charge-discharge detector on the box, place the board, pull rod and two mounts, the top fixed mounting of lithium cell charge-discharge detector has two positive negative pole to connect, place the outside sliding connection of board has two C type splint, the both sides of pull rod all articulate there is first body of rod, the one end that the pull rod was kept away from to first body of rod articulates there is the second body of rod, the one end fixedly connected with first straight-bar of pull rod, the outside fixedly connected with arc piece of first straight-bar, logical groove has been seted up to one side of mount, the inside sliding connection of logical groove has the second straight-bar, the bottom fixedly connected with movable plate of two second straight-bars, the bottom fixedly connected with memory cotton layer of movable plate, the outside of arc piece is laminated with the outside of movable rod. The detection device provided by the utility model realizes the automatic positioning and clamping of the lithium battery, improves the efficiency of detecting the lithium battery, and can also be used for fixing and clamping lithium batteries of different types.
Chinese patent CN215641718U discloses a charge-discharge detection device for lithium cell production, including electric even case, electric even case's lower surface mounting has the detection control case, detection control case's internally mounted has the lithium cell detector, the inside upper surface position department of electric even case installs the centre gripping fixture, the lithium cell is installed to the inside block of centre gripping fixture, the output electrode of lithium cell detector is connected with the circular telegram line, electric even case and detection control case's side surface position department all are provided with the heat dissipation net, electric even board is installed to electric even case's inside lower surface position department that corresponds the lithium cell, the lower extreme of lithium cell is provided with the lithium cell electrode tip. The charge and discharge detection device for lithium battery production is provided with a lithium battery fixing structure, a lithium battery clamp is of an automatic spring extrusion fixing structure, the structure of the device is centralized, the volume is small, and the electric connection structure of the device is of an insertion structure.
As shown in the above two patents, the existing lithium battery charge-discharge cycle test device basically fixes the lithium battery in a test area, and tests the lithium battery by using a tester, so that the lithium battery is widely applied to vehicles such as automobiles and battery cars, and the vehicles can swing and vibrate when running, the vibration environment mainly affects the stability of the lithium ion battery diaphragm in the electrolyte, and in addition, the vibration and impact can also accelerate the aging process of the lithium battery to affect the life cycle and stability of the lithium battery, therefore, static charge-discharge test is performed on the lithium battery, and certain deviation exists in the test result, so that the service life of the lithium battery under the swing and vibration environment cannot be measured.
Therefore, it is necessary to provide a lithium battery cycle performance testing apparatus to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide a lithium battery cycle performance testing device which can simulate the use environment of a lithium battery in a vehicle to test and has the effect of improving the accuracy of a testing result.
The technical aim of the utility model is realized by the following technical scheme: the utility model provides a lithium cell cycle performance testing arrangement, includes the tester body, be provided with the test area on the tester body, the bottom fixed mounting of test area inner chamber has supporting platform, supporting platform's top is rotated and is installed testing platform, testing platform's top fixed mounting has the battery to place the box, supporting platform's top is provided with the wabbler mechanism, the wabbler mechanism is connected with the battery box transmission of placing, testing platform's bottom is provided with vibration mechanism, the wabbler mechanism is connected and drives vibration mechanism vibration with vibration mechanism transmission.
The utility model is further provided with: the both sides on supporting platform top all fixed mounting have the backup pad, rotate between two backup pads and install the third connecting axle, the middle part fixed mounting of testing platform bottom has two first connecting seats, and two first connecting seats all rotate with the third connecting axle and are connected.
The utility model is further provided with: the swinging mechanism comprises a mounting seat, a second rotating shaft and two second connecting seats, wherein the second rotating shaft is rotatably mounted on the mounting seat, the two second connecting seats are fixedly mounted at the bottom end of the testing platform, the mounting seat is fixedly connected with the supporting platform, a driving assembly used for driving the second rotating shaft to rotate is arranged on the mounting seat, turntables are fixedly mounted at two ends of the second rotating shaft, a first connecting shaft is fixedly mounted at the edge of the side wall of the turntables, a connecting rod is arranged between the second connecting seat and the first connecting shaft, one end of the connecting rod is rotatably connected with the first connecting shaft, and the other end of the connecting rod is rotatably connected with the second connecting seat.
The utility model is further provided with: the driving assembly comprises a motor and a first rotating shaft, the motor is fixedly arranged on one side of the mounting seat, the first rotating shaft is rotatably arranged inside the mounting seat, the output end of the motor is fixedly connected with the first rotating shaft, belt pulleys are sleeved on the first rotating shaft and the second rotating shaft, and the two belt pulleys are connected through belt transmission.
The utility model is further provided with: the vibration mechanism comprises a vibration box, the vibration box is fixedly arranged at the bottom end of a test platform, a third rotating shaft and a fourth rotating shaft are rotatably arranged in the vibration box, one end of the third rotating shaft extends out of the vibration box, a one-way bearing is sleeved at one end of the third rotating shaft, one end of the third rotating shaft is connected with one end of the second connecting shaft through the one-way bearing in a one-way transmission manner, a first gear is sleeved on the third rotating shaft, a second gear is sleeved on the fourth rotating shaft, the first gear is meshed with the second gear, a plurality of mounting rings are sleeved on the fourth rotating shaft, and a plurality of impact assemblies are arranged on the mounting rings.
The utility model is further provided with: the vibration mechanism comprises a mounting cylinder, a mounting column and a reset spring, wherein one end of the mounting cylinder is fixedly connected with the mounting ring, one end of the mounting column extends into the mounting cylinder, the reset spring is arranged in the mounting cylinder, one end of the reset spring is fixedly connected with the inner wall of the mounting cylinder, the other end of the reset spring is fixedly connected with one end of the mounting column, and a ball is embedded into the other end of the mounting column.
The utility model is further provided with: the battery is placed the lateral wall fixed mounting of box and is had the plug wire seat, a lateral wall of plug wire seat is provided with a plurality of spliced eyes, another lateral wall of plug wire seat is provided with a plurality of elasticity conductive component, and a plurality of elasticity conductive component distributes in a row, a plurality of elasticity conductive component respectively with a plurality of spliced eyes electric connection, the inner wall fixed mounting of test area has the arc seat, a plurality of arc grooves have been seted up to a lateral wall of arc seat, the inside fixed mounting of arc groove has the arc conducting strip, a plurality of elasticity conductive component's one end stretches into respectively in a plurality of arc grooves and with arc conducting strip electric connection, another lateral wall of arc seat is provided with a plurality of conductive seats, a plurality of arc conducting strips respectively through third wire and a plurality of conductive seat electric connection.
The utility model is further provided with: the elastic conductive assembly comprises a connecting cylinder, a connecting column and a conductive column, wherein one end of the connecting cylinder is fixedly connected with the plug wire seat, one end of the connecting column extends into the connecting cylinder, the connecting column is in sliding fit with the connecting cylinder, a conductive spring is arranged in the connecting cylinder, one end of the conductive spring is electrically connected with a first wire, the first wire is electrically connected with the plug hole, the other end of the conductive spring is fixedly connected with the connecting column, the conductive column is embedded and installed at the end part of the connecting column, the conductive column is in contact with the arc-shaped conductive sheet, a second wire is arranged inside the connecting column, and the conductive column is electrically connected with the conductive spring through the second wire.
The utility model is further provided with: the inside of arc seat has been seted up the cavity, the intussuseption of cavity is filled with the coolant liquid, the lateral wall intercommunication of arc seat is provided with two infusion mouths, and two infusion mouths all are linked together with the inner chamber of arc seat.
In summary, the utility model has the following beneficial effects:
1. in the test process, the battery placing box is driven to swing left and right through the swinging mechanism so as to simulate the swinging process of a vehicle running on a bumpy road section, the battery placing box is driven to vibrate through the vibrating mechanism so as to simulate the vibration generated when a vehicle engine works, so that the detection environment is more consistent with the actual use environment, the accuracy of the detection result is improved, and the vibrating mechanism is in transmission connection with the swinging mechanism, so that the vibrating mechanism can be driven to vibrate when the swinging mechanism works, the vibrating mechanism does not need to be driven through electric power, the vibrating mechanism does not need to be connected with a wire, the wire connected with the vibrating mechanism is prevented from being bent and deformed for a long time to be aged rapidly, and the use cost of equipment is reduced;
2. according to the utility model, the lithium battery is electrically connected with the plug hole through the lead, the plug hole is electrically connected with the conductive column through the first lead, the conductive spring and the second lead in sequence, and the conductive column is in contact with the arc-shaped conductive sheet, so that the conductive column can be electrically connected with the conductive seat through the arc-shaped conductive sheet and the third conductive wire in sequence, and the conductive seat is electrically connected with the tester body through the lead, so that the electrical connection of the lithium battery and the tester body is realized, when the lithium battery swings, the plug wire seat swings back and forth in an arc track, so that the plurality of conductive assemblies swing in an arc track, the conductive column swings in an arc track in the arc-shaped groove, and at the moment, the conductive column is always in contact with the arc-shaped conductive sheet, so that the electrical connection can be kept all the time, the electrical connection of the lithium battery and the tester body is realized through the structure, the bending and the stretching of the connecting lead are avoided, and the testing cost is reduced.
Drawings
FIG. 1 is a schematic three-dimensional structure of the present utility model;
FIG. 2 is a schematic view of a three-dimensional structure of the present utility model with the tester body removed;
FIG. 3 is a schematic view of a three-dimensional structure of another view angle of the tester body according to the present utility model;
FIG. 4 is a schematic three-dimensional structure of the rocking mechanism of the present utility model;
FIG. 5 is a schematic three-dimensional view of a vibration mechanism according to the present utility model;
FIG. 6 is a schematic cross-sectional view of an impact assembly of the present utility model;
fig. 7 is a schematic three-dimensional structure of the arc-shaped socket and the plug socket of the present utility model;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7A according to the present utility model;
FIG. 9 is a schematic cross-sectional view of an elastic conductive element according to the present utility model;
fig. 10 is a schematic top sectional view of the arc-shaped seat of the present utility model.
In the figure: 1. a tester body; 2. a support platform; 3. a test platform; 4. a battery placement case; 5. a rocking mechanism; 51. a mounting base; 52. a motor; 53. a first rotating shaft; 54. a second rotating shaft; 55. a turntable; 56. a first connecting shaft; 57. a second connecting seat; 58. a connecting rod; 59. a second connecting shaft; 6. a vibration mechanism; 61. a vibrating box; 62. a third rotating shaft; 63. a one-way bearing; 64. a first gear; 65. a fourth rotating shaft; 66. a second gear; 67. a mounting ring; 68. an impact assembly; 681. a mounting cylinder; 682. a mounting column; 683. a ball; 684. a return spring; 7. a support plate; 8. a first connection base; 9. a third connecting shaft; 10. a plug wire seat; 11. an arc-shaped seat; 1101. an arc-shaped groove; 12. a plug hole; 13. an elastic conductive component; 131. a connecting cylinder; 132. a connecting column; 133. a conductive spring; 134. a first wire; 135. a second wire; 136. a conductive post; 14. arc-shaped conductive sheets; 15. a conductive base; 16. a third wire; 17. a cooling liquid; 18. an infusion port.
Detailed Description
The present utility model will be further described with reference to the drawings in the embodiments of the present utility model.
Referring to fig. 1 to 6, in the embodiment of the utility model, a lithium battery cycle performance testing device includes a tester body 1, the tester body 1 is a lithium battery tester, the lithium battery tester is a device for testing the performance of a lithium battery, and can measure the capacity, internal resistance, voltage, current and other important parameters of the battery, so that the prior art is not described in detail, a testing area is provided on the tester body 1, a supporting platform 2 is fixedly installed at the bottom of an inner cavity of the testing area, a testing platform 3 is rotatably installed at the top end of the supporting platform 2, a battery placement box 4 is fixedly installed at the top end of the testing platform 3, a swinging mechanism 5 is arranged at the top end of the supporting platform 2, the swinging mechanism 5 is in transmission connection with the battery placement box 4, and a vibrating mechanism 6 is arranged at the bottom end of the testing platform 3, and the swinging mechanism 5 is in transmission connection with the vibrating mechanism 6 and drives the vibrating mechanism 6 to vibrate; during testing, the lithium battery pack to be tested is fixed in the battery placement box 4, the lithium battery to be tested is electrically connected with the tester, in the testing process, the battery placement box 4 is driven to swing left and right through the swinging mechanism 5 so as to simulate the swinging process of a vehicle running on a bumpy road section, the battery placement box 4 is driven to vibrate through the vibrating mechanism 6 so as to simulate the vibration generated during the operation of a vehicle engine, so that the detection environment is more consistent with the actual use environment, the accuracy of the detection result is improved, the vibrating mechanism 6 is in transmission connection with the swinging mechanism 5, the vibrating mechanism 6 can be driven to vibrate during the operation of the swinging mechanism 5, the vibrating mechanism 6 is not required to be driven through electric power, the vibrating mechanism 6 is not required to be connected with a wire, the wire connected with the vibrating mechanism 6 is prevented from being bent and deformed for a long time so as to age rapidly, and the use cost of equipment is reduced.
In this embodiment, preferably, the two sides of the top end of the supporting platform 2 are fixedly provided with supporting plates 7, a third connecting shaft 9 is rotatably installed between the two supporting plates 7, two first connecting seats 8 are fixedly installed in the middle of the bottom end of the testing platform 3, and the two first connecting seats 8 are rotatably connected with the third connecting shaft 9; thereby realizing a rotational connection between the test platform 3 and the support platform 2.
In this embodiment, preferably, the rocking mechanism 5 includes a mounting seat 51, a second rotating shaft 54 rotatably mounted on the mounting seat 51, and two second connecting seats 57 fixedly mounted at the bottom end of the test platform 3, the mounting seat 51 is fixedly connected with the support platform 2, a driving component for driving the second rotating shaft 54 to rotate is disposed on the mounting seat 51, two ends of the second rotating shaft 54 are fixedly mounted with a turntable 55, a first connecting shaft 56 is fixedly mounted at the edge of the side wall of the turntable 55, a connecting rod 58 is disposed between the second connecting seats 57 and the first connecting shaft 56, one end of the connecting rod 58 is rotatably connected with the first connecting shaft 56, and the other end of the connecting rod 58 is rotatably connected with the second connecting seat 57; the driving assembly comprises a motor 52 and a first rotating shaft 53, the motor 52 is fixedly arranged on one side of the mounting seat 51, the first rotating shaft 53 is rotatably arranged in the mounting seat 51, the output end of the motor 52 is fixedly connected with the first rotating shaft 53, belt pulleys are sleeved on the first rotating shaft 53 and the second rotating shaft 54, and the two belt pulleys are connected through a belt in a transmission manner; when the test platform 3 is required to be driven to swing, the motor 52 is started, the output end of the motor 52 drives the first rotating shaft 53 to rotate, the first rotating shaft 53 drives the second rotating shaft 54 to rotate through the belt and the belt pulley, the rotating disc 55 at two ends of the second rotating shaft 54 is driven to rotate when the second rotating shaft 54 rotates, the bottom end of the connecting rod 58 is driven to move in a circular track through the first connecting shaft 56 when the rotating disc 55 rotates, the top end of the connecting rod 58 drives the second connecting seat 57 to move up and down in an arc track, and therefore the test platform 3 swings back and forth, and further the lithium battery in the battery placing box 4 swings back and forth.
In this embodiment, preferably, a second connecting shaft 59 is rotatably installed between the two second connecting seats 57, two ends of the second connecting shaft 59 respectively penetrate through the two second connecting seats 57 and the two connecting rods 58, the two connecting rods 58 are fixedly connected with the second connecting shaft 59, the vibration mechanism 6 includes a vibration box 61, the vibration box 61 is fixedly installed at the bottom end of the test platform 3, a third rotating shaft 62 and a fourth rotating shaft 65 are rotatably installed inside the vibration box 61, one end of the third rotating shaft 62 extends out of the vibration box 61, the end is sleeved with a unidirectional bearing 63, one end of the third rotating shaft 62 is in unidirectional transmission connection with one end of the second connecting shaft 59 through the unidirectional bearing 63, the unidirectional bearing 63 includes an outer ring and an inner ring, the outer ring and the inner ring are in unidirectional rotation connection, the outer ring is fixedly connected with the third rotating shaft 62, so that the second connecting shaft 59 can drive the third rotating shaft 62 to rotate intermittently in a unidirectional manner when being reciprocally rotated, a first gear 64 is installed on the third rotating shaft 62, a fourth gear 65 is sleeved with a second gear 66, a plurality of top wall gears 67 is installed on the fourth gear 65, a plurality of top wall gears 67 is installed on the top wall 67, and a plurality of rotating shafts 67 are rotatably sleeved with a plurality of rotating shafts 67, and a plurality of rotating shafts 67 are installed on the top wall 67 are rotatably, and a plurality of rotating assemblies are meshed with one another rotating assembly 67, and a plurality of rotating assembly is meshed with one rotating assembly, and a rotating assembly is installed; the vibration mechanism 6 comprises a mounting cylinder 681, a mounting column 682 and a return spring 684, wherein one end of the mounting cylinder 681 is fixedly connected with the mounting ring 67, one end of the mounting column 682 extends into the mounting cylinder 681, the return spring 684 is arranged in the mounting cylinder 681, one end of the return spring 684 is fixedly connected with the inner wall of the mounting cylinder 681, the other end of the return spring 684 is fixedly connected with one end of the mounting column 682, and a ball 683 is embedded into the other end of the mounting column 682; when the motor 52 works, along with the swinging of the connecting rod 58, the second connecting shaft 59 reciprocally rotates to drive the third rotating shaft 62 to intermittently rotate in one direction, the third rotating shaft 62 rotationally drives the second gear 66 through the first gear 64 to rotate so as to drive the fourth rotating shaft 65 to rotate, the fourth rotating shaft 65 rotationally drives the plurality of impact assemblies 68 through the mounting ring 67, and the balls 683 intermittently impact the inner wall of the top of the vibrating box 61 when the impact assemblies 68 rotate, so that the vibrating box 61 intermittently vibrates, the vibration of the vibrating box 61 can be transmitted to the battery placing box 4 through the test platform 3 so as to be transmitted to the lithium battery in the battery placing box, so that the vibration state of the lithium battery in a vehicle is simulated, and the vibrating mechanism 6 does not need to be driven by the motor, so that connecting wires are not needed, and the problem that the wires are easy to damage due to long-time swinging of the vibrating mechanism 6 is avoided.
Because frequent swing is required during testing of the lithium battery, and the lithium battery is electrically connected with the tester body 1 through the lead, the tester body 1 is in a static state due to the reciprocating swing of the lithium battery, so that the lead can be frequently bent and stretched during testing, the lead is extremely fragile, and the lead needs to be frequently replaced, so that the testing cost is increased, and the following embodiment is provided.
Referring to fig. 7 to 9, in the embodiment of the present utility model, a wire inserting seat 10 is fixedly installed on an outer side wall of the battery placing box 4, a plurality of inserting holes 12 are provided on one side wall of the wire inserting seat 10, a plurality of elastic conductive assemblies 13 are provided on the other side wall of the wire inserting seat 10, the plurality of elastic conductive assemblies 13 are distributed in a row, the plurality of elastic conductive assemblies 13 are respectively electrically connected with the plurality of inserting holes 12, an arc seat 11 is fixedly installed on an inner wall of the testing area, a plurality of arc slots 1101 are provided on one side wall of the arc seat 11, an arc conductive sheet 14 is fixedly installed inside the arc slots 1101, one ends of the plurality of elastic conductive assemblies 13 respectively extend into the plurality of arc slots 1101 and are electrically connected with the arc conductive sheet 14, a plurality of conductive seats 15 are provided on the other side wall of the arc seat 11, the plurality of arc conductive sheets 14 are respectively electrically connected with the plurality of conductive seats 15 through a third wire 16, the conductive seats 15 are electrically connected with the testing instrument body 1, and the lithium battery can be electrically connected with the inserting holes 12 through wires, thereby realizing the electrical connection between the lithium battery and the testing instrument body 1.
In this embodiment, preferably, the elastic conductive component 13 includes a connecting cylinder 131, a connecting column 132 and a conductive column 136, one end of the connecting cylinder 131 is fixedly connected with the wire socket 10, one end of the connecting column 132 extends into the connecting cylinder 131, the connecting column 132 is slidably matched with the connecting cylinder 131, a conductive spring 133 is disposed in the connecting cylinder 131, one end of the conductive spring 133 is electrically connected with a first wire 134, the first wire 134 is electrically connected with the jack 12, the other end of the conductive spring 133 is fixedly connected with the connecting column 132, the conductive column 136 is embedded and mounted at the end of the connecting column 132, the conductive column 136 is contacted with the arc conductive sheet 14, a second wire 135 is disposed in the connecting column 132, and the conductive column 136 is electrically connected with the conductive spring 133 through the second wire 135; during testing, the lithium battery is electrically connected with the plug hole 12 through the lead, the plug hole 12 sequentially passes through the first lead 134, the conductive spring 133 and the second lead 135 to be electrically connected with the conductive column 136, and the conductive column 136 is in contact with the arc-shaped conductive sheet 14, so that the conductive column 136 can sequentially pass through the arc-shaped conductive sheet 14 and the third conductive wire to be electrically connected with the conductive seat 15, and the conductive seat 15 is electrically connected with the tester body 1 through the lead, so that the electrical connection of the lithium battery and the tester body 1 is realized, when the lithium battery swings, the plug wire seat 10 swings reciprocally in an arc track, so that a plurality of conductive assemblies swing in an arc track, the conductive column 136 swings in the arc track in the arc-shaped groove 1101, and the conductive column 136 always contacts with the arc-shaped conductive sheet 14 at the moment, so that the electrical connection can be kept all the time, the bending and the stretching of the connecting lead are avoided, the damage of the lead is avoided, and the testing cost is reduced.
The conductive post 136 has a certain abrasion during long-time use, so the conductive post 136 can be detached from one end of the connecting post 132 for replacement, the production process of the conductive post 136 is simpler, compared with a wire, the cost is lower, the conductive post 136 generates heat during friction, the temperature is increased after the heat generation, the abrasion is accelerated, and in order to reduce the abrasion, the following embodiment is provided.
Referring to fig. 10, in the embodiment of the present utility model, a cavity is formed in the arc-shaped seat 11, a cooling liquid 17 is filled in the cavity, two infusion ports 18 are provided on the side wall of the arc-shaped seat 11 in a communicating manner, and both infusion ports 18 are communicated with the inner cavity of the arc-shaped seat 11; the cooling liquid circulation device is arranged in the tester body 1, so that cooling liquid 17 is input from one of the infusion ports 18 and is output through the other infusion port 18, and the cooling liquid 17 is cooled by the refrigerating device, and the cooling liquid circulation device and the refrigerating device are all of the prior art, so that the temperature of the arc-shaped conducting strip 14 can be reduced through the cooling liquid 17, the temperature of the conducting column 136 is reduced, the abrasion of the conducting column 136 is reduced, and the cooling liquid circulation device can also be matched with the heat conducting copper pipe to cool the heating part in the tester body 1.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (9)
1. The utility model provides a lithium cell cycle performance testing arrangement, includes tester body (1), be provided with the test area on tester body (1), the bottom fixed mounting of test area inner chamber has supporting platform (2), its characterized in that: the testing device is characterized in that the top end of the supporting platform (2) is rotatably provided with the testing platform (3), the top end of the testing platform (3) is fixedly provided with the battery placement box (4), the top end of the supporting platform (2) is provided with the swinging mechanism (5), the swinging mechanism (5) is in transmission connection with the battery placement box (4), the bottom end of the testing platform (3) is provided with the vibrating mechanism (6), and the swinging mechanism (5) is in transmission connection with the vibrating mechanism (6) and drives the vibrating mechanism (6) to vibrate.
2. The lithium battery cycle performance testing apparatus according to claim 1, wherein: the test platform is characterized in that support plates (7) are fixedly mounted on two sides of the top end of the support platform (2), a third connecting shaft (9) is rotatably mounted between the two support plates (7), two first connecting seats (8) are fixedly mounted in the middle of the bottom end of the test platform (3), and the two first connecting seats (8) are rotatably connected with the third connecting shaft (9).
3. The lithium battery cycle performance testing apparatus according to claim 2, wherein: the swinging mechanism (5) comprises a mounting seat (51), a second rotating shaft (54) rotatably mounted on the mounting seat (51) and two second connecting seats (57) fixedly mounted at the bottom end of the test platform (3), the mounting seat (51) is fixedly connected with the support platform (2), a driving component for driving the second rotating shaft (54) to rotate is arranged on the mounting seat (51), turntables (55) are fixedly mounted at two ends of the second rotating shaft (54), first connecting shafts (56) are fixedly mounted at the edges of the side walls of the turntables (55), connecting rods (58) are arranged between the second connecting seats (57) and the first connecting shafts (56), one ends of the connecting rods (58) are rotatably connected with the first connecting shafts (56), and the other ends of the connecting rods (58) are rotatably connected with the second connecting seats (57).
4. A lithium battery cycle performance testing apparatus according to claim 3, wherein: the driving assembly comprises a motor (52) and a first rotating shaft (53), the motor (52) is fixedly arranged on one side of the mounting seat (51), the first rotating shaft (53) is rotatably arranged inside the mounting seat (51), the output end of the motor (52) is fixedly connected with the first rotating shaft (53), belt pulleys are sleeved on the first rotating shaft (53) and the second rotating shaft (54), and the two belt pulleys are connected through belt transmission.
5. A lithium battery cycle performance testing apparatus according to claim 3, wherein: two install second connecting axle (59) rotationally between second connecting seat (57), the both ends of second connecting axle (59) run through two second connecting seat (57) and two connecting rods (58) respectively, and two connecting rods (58) all with second connecting axle (59) fixed connection, vibration mechanism (6) include vibrating box (61), vibrating box (61) fixed mounting in test platform (3)'s bottom, third pivot (62) and fourth pivot (65) are installed in vibrating box (61)'s internal rotation, vibrating box (61) are stretched out to the one end of third pivot (62), and this pot head is equipped with one-way bearing (63), one end of third pivot (62) is connected with one-way transmission of one end of second connecting axle (59) through one-way bearing (63), the cover is equipped with first gear (64) on third pivot (62), the cover is equipped with second gear (66) on fourth pivot (65), first gear (64) and second gear (66) are mutually rotated, the top wall (67) are equipped with impact assembly (67) in the cover, install in the multiple top wall (67) and install vibration assembly (68) in the time of the multiple-step (67).
6. The lithium battery cycle performance testing apparatus according to claim 5, wherein: the vibration mechanism (6) comprises a mounting cylinder (681), a mounting column (682) and a reset spring (684), one end of the mounting cylinder (681) is fixedly connected with a mounting ring (67), one end of the mounting column (682) extends into the mounting cylinder (681), the reset spring (684) is arranged in the mounting cylinder (681), one end of the reset spring (684) is fixedly connected with the inner wall of the mounting cylinder (681), the other end of the reset spring (684) is fixedly connected with one end of the mounting column (682), and a ball (683) is embedded into the other end of the mounting column (682).
7. The lithium battery cycle performance testing apparatus according to claim 6, wherein: the battery is placed lateral wall fixed mounting of box (4) and is had plug socket (10), a lateral wall of plug socket (10) is provided with a plurality of spliced eye (12), another lateral wall of plug socket (10) is provided with a plurality of elasticity conductive component (13), and a plurality of elasticity conductive component (13) distribute in one row, a plurality of elasticity conductive component (13) respectively with a plurality of spliced eye (12) electric connection, the inner wall fixed mounting of test area has arc seat (11), a plurality of arc wall (1101) have been seted up to a lateral wall of arc seat (11), the inside fixed mounting of arc wall (1101) has arc conducting strip (14), the one end of a plurality of elasticity conductive component (13) stretches into in a plurality of arc wall (1101) respectively and with arc conducting strip (14) electric connection, another lateral wall of arc seat (11) is provided with a plurality of conducting strips (15), a plurality of arc conducting strip (14) respectively through third wire (16) and a plurality of conducting strips (15) electric connection.
8. The lithium battery cycle performance testing apparatus according to claim 7, wherein: the utility model provides an elastic conductive assembly (13) includes connecting cylinder (131), spliced pole (132) and conductive column (136), the one end and the plug wire seat (10) fixed connection of connecting cylinder (131), in connecting cylinder (131) are stretched into to the one end of spliced pole (132), and connecting cylinder (132) and connecting cylinder (131) sliding fit, be provided with conductive spring (133) in connecting cylinder (131), the one end electric connection of conductive spring (133) has first wire (134), first wire (134) and spliced pole (12) electric connection, the other end and the spliced pole (132) fixed connection of conductive spring (133), the tip at spliced pole (132) is installed in the embedding of conductive column (136), conductive column (136) and arc conducting strip (14) contact, the inside of spliced pole (132) is provided with second wire (135), conductive column (136) are through second wire (135) and conductive spring (133) electric connection.
9. The lithium battery cycle performance testing apparatus according to claim 7, wherein: the inside of arc seat (11) has seted up the cavity, the intussuseption of cavity is filled with coolant liquid (17), the lateral wall intercommunication of arc seat (11) is provided with two infusion mouths (18), and two infusion mouths (18) all with the arc seat.
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