Sodium ion battery charge and discharge test device

Abstract

The present invention discloses a sodium ion battery charge and discharge test device, which relates to the technical field related to the test device, and solves the problem that when performing charge and discharge tests, multiple sets of driving parts are required to complete the test, the cost of the device is relatively high, and the vibration force generated at the same time will affect the stability of the battery test. The test device includes a test machine, a battery placement rack, a transmission component, a charge and discharge test mechanism, and a feeding device. The transmission component is installed inside the test machine, and the transmission component is driven by a servo motor installed on the side of the test machine. A number of battery placement racks are equidistantly arranged on the top of the transmission component; in the present invention, automated battery charge and discharge test operations can be performed, which improves efficiency. At the same time, the rotation operation of the two sets of discs is synchronous, and the lithium battery can be synchronously driven to move to complete the entire test process. The overall cost of the device is lower, the vibration impact is smaller, and the accuracy during the test is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field related to testing devices, and in particular to a sodium ion battery charging and discharging testing device. Background Art

[0002] Sodium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of sodium ions between the positive and negative electrodes to work. It is inexpensive and uses iron-manganese-nickel-based positive electrode materials. Compared with the ternary positive electrode materials of lithium-ion batteries, the cost of raw materials is equivalent to that of the original battery and can be reduced by half. After the production and processing of sodium-ion batteries is completed, the finished sodium-ion batteries need to be tested for charge and discharge to ensure that the quality of the sodium-ion batteries meets the standards.

[0003] The existing Chinese patent application with publication number CN117214711A discloses a charge and discharge test device, including a test component and a feeding device, the test component is placed on a conveying device, and the feeding device is arranged above the test component; the feeding device includes a material box, the material box is fixedly arranged above the test component, a rotating block is rotatably connected inside the material box, the rotating block is a cylindrical structure, and a plurality of circular grooves are evenly opened on the side wall of the rotating block, a motor is fixedly connected to the outer wall of the material box, and one end of the output shaft of the motor is fixedly connected to one end of the rotating block; the invention can be applied to the access process of the charge and discharge test of cylindrical lithium batteries, and can make the charge and discharge test process of cylindrical lithium batteries more convenient.

[0004] However, the charge and discharge test device has the following defects when used:

[0005] 1. When the existing charge and discharge test device performs charge and discharge tests on batteries (sodium ion batteries), in order to improve the efficiency of battery testing, the charge and discharge test is performed by automatic unloading and transportation. However, in actual operation, the structure of transporting and testing the battery requires the drive of multiple sets of driving parts (motors, etc.), resulting in a large overall cost of the device. In addition, the vibration force of multiple sets of different driving parts during operation will interfere with and affect each other, resulting in the stability of the battery during transportation and testing, thereby affecting the normal subsequent charge and discharge.

[0006] 2. When the existing charge and discharge test device performs charge and discharge tests on the battery, it is generally necessary to perform charge and discharge voltage and current tests. The traditional test method is generally performed by manual installation and disassembly by staff. For this test method, the efficiency is low and inconvenient when testing a number of batteries (sodium ion batteries). At the same time, the current and voltage tests of a group of batteries (sodium ion batteries) need to be performed separately, which greatly affects the efficiency of battery testing. Summary of the invention

[0007] The object of the present invention is to provide a sodium ion battery charge and discharge test device to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The sodium ion battery charge and discharge test device provided by the present invention comprises a test machine, a battery placement rack, a transmission component, a charge and discharge test mechanism and a material unloading device, wherein the transmission component is installed inside the test machine, and the transmission component is driven by a servo motor installed on the side of the test machine, and a plurality of battery placement racks are equidistantly arranged on the top of the transmission component, and the sodium ion battery is supported and positioned inside the battery placement rack;

[0010] The bottom of the transmission component is connected with a charge and discharge test mechanism, which is installed on the top of the bracket, the bracket is installed on the top of the test machine by bolts, and the unloading device is installed on the top of the port part of the test machine. The charge and discharge test mechanism includes:

[0011] A transmission assembly, the transmission assembly is installed at the bottom of the transmission assembly and is movably connected to the side of the test machine, the side of the transmission assembly is connected to a forward and reverse assembly, the forward and reverse assembly is installed on the side of the bracket, and two groups are provided;

[0012] A gear telescopic assembly, wherein the gear telescopic assembly is installed on the side of the forward and reverse rotation assembly and is located on the inner side of the bracket. The gear telescopic assembly performs charge and discharge tests on the sodium ion battery. The gear telescopic assembly is connected to a voltage charge and discharge tester and a current charge and discharge tester through wires, respectively. The voltage charge and discharge tester and the current charge and discharge tester are respectively installed on the top of two groups of brackets.

[0013] As a preferred embodiment of the present invention, working positions are further arranged on both sides of the test machine away from one end of the unloading device, a support arm is installed on the side of the test machine close to the bracket, a camera end is installed on the top of the support arm, and the camera end is arranged toward the sodium ion battery.

[0014] As a preferred embodiment of the present invention, the battery placement rack is composed of a support and a semicircular frame, the support is installed on the top of the transmission component and is slidably connected to the inner side of the test machine, a semicircular frame is arranged at the inner center of the support, and the interior of the semicircular frame supports a sodium ion battery.

[0015] As a preferred solution of the present invention, the transmission component includes:

[0016] A driving shaft, the driving shaft is connected to the output end of the servo motor and passes through the testing machine, a transmission wheel is installed on the outside of the driving shaft, and a transmission belt is connected to the outside of the transmission wheel;

[0017] The conveyor belt is movably connected to the inner side of the test machine, and two groups of transmission wheels are provided, and both are rotatably connected to the inner side of the test machine.

[0018] As a preferred solution of the present invention, the bottom of the driving shaft is connected to a transmission assembly, and the top of the conveyor belt is supported by a plurality of equidistantly arranged supports.

[0019] As a preferred solution of the present invention, the transmission assembly includes:

[0020] A first belt, the first belt is connected to the outside of the driving shaft through a pulley and is movably connected to the side of the testing machine, the inner side of the first belt is also connected to a first rotating shaft through a pulley, and the first rotating shaft is arranged away from the driving shaft;

[0021] A second belt, wherein the second belt is connected to the outer side of the first rotating shaft via a pulley, and the inner side of the second belt is also connected to the second rotating shaft via a pulley, and the second rotating shaft is arranged away from the first rotating shaft.

[0022] As a preferred solution of the present invention, the first rotating shaft and the second rotating shaft are both rotatably connected inside the bracket and rotatably connected to the side of the test machine;

[0023] Wherein, the sides of the first rotating shaft and the second rotating shaft are both connected with forward and reverse rotation components.

[0024] As a preferred solution of the present invention, the forward and reverse reversing assembly comprises:

[0025] A first bevel gear, the first bevel gear is mounted on the side surfaces of the first rotating shaft and the second rotating shaft, the side surface of the first bevel gear is meshedly connected with the second bevel gear, and the first bevel gear and the second bevel gear are both rotatably connected to the side surface of the bracket;

[0026] A rotating shaft, the rotating shaft is installed at the center of the second bevel gear and is rotatably connected to the inside of the bracket, a disc is supported on the top of the rotating shaft, and an eccentric gear is installed at the eccentric part of the disc;

[0027] A forward gear, which is mounted on the top of the disc and meshed with the eccentric gear. A movable shaft is connected through the inner center of the forward gear, and the movable shaft is rotatably connected to the side of the bracket.

[0028] A reversing gear is installed on the outside of the movable shaft and meshed with the eccentric gear. The reversing gear is movably connected to a side surface of a positioning protrusion, and the positioning protrusion is installed at the edge of the top of the bracket.

[0029] As a preferred solution of the present invention, the forward gear and the reverse gear are symmetrically arranged relative to the central axis of the disk, and the bottom of the movable shaft is connected to a gear telescopic assembly.

[0030] As a preferred embodiment of the present invention, the gear telescopic assembly comprises:

[0031] A threaded rod, the threaded rod is installed on the side of the movable shaft and is rotatably connected to the side of the bracket, a third bevel gear is installed at the bottom of the threaded rod, and a fourth bevel gear is meshedly connected to the side of the third bevel gear;

[0032] The fourth bevel gear is rotatably connected to the center of the bottom of the bracket, the third bevel gear is provided with two groups, and is symmetrically arranged relative to the central axis of the fourth bevel gear, and a threaded rod is also installed at the bottom of the fourth bevel gear, and the thread directions of the two groups of threaded rods are opposite;

[0033] A sliding block, the sliding block is threadedly connected to the outside of the threaded rod and slidably connected to the bottom of the bracket, and a connecting arm is installed at the bottom of the sliding block;

[0034] A test probe is installed on the side of the connecting arm and connected to the side of the sodium ion battery. The test probe is connected to a voltage charge and discharge tester and a current charge and discharge tester through wires.

[0035] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0036] 1. The sodium ion battery charge and discharge test device, when performing charge and discharge tests on the sodium ion battery, the voltage charge and discharge tester and the current charge and discharge tester for testing can respectively operate through the test probe, the connecting arm, the sliding block and the threaded rod connected thereto, and cooperate with the disc to drive the eccentric gear at the eccentric part to rotate, thereby driving the movable shaft and the threaded rod connected to the forward gear and the reverse gear to perform uninterrupted forward and reverse rotation, and perform operations of fitting to the positive and negative electrodes of the sodium ion battery and being away from the positive and negative electrodes of the sodium ion battery, and perform automated battery charge and discharge test operations, thereby improving efficiency. At the same time, the rotation operation of the above two sets of discs is synchronously performed by the servo motor driving the output end drive shaft, the first belt, the first rotating shaft, the second belt, the second rotating shaft, the first bevel gear, the second bevel gear and the rotating shaft to operate, so that the overall cost of the device is lower and the vibration impact is smaller;

[0037] 2. The sodium ion battery charge and discharge test device, when the sodium ion battery is charged and discharged, several groups of tested sodium ion batteries are driven by a servo motor to drive the output end drive shaft, transmission wheel, transmission belt, support and semicircular frame to operate, and evenly move to the bottom of the corresponding voltage charge and discharge tester and current charge and discharge tester to perform charge and discharge tests, wherein the voltage charge and discharge tester and current charge and discharge tester can be used together to make the voltage charge and discharge test of a group of sodium ion batteries be performed, and the current charge and discharge test of the previous group of sodium ion batteries that have completed the voltage charge and discharge test can be performed synchronously, so as to further improve the efficiency of battery charging and discharging (current and voltage);

[0038] 3. The sodium ion battery charge and discharge test device can drive the eccentric gear at the eccentric part of the disk to rotate (the rotation angle is 180 degrees) when performing current and voltage charge and discharge tests on the sodium ion battery, so as to drive the eccentric gear to mesh with the forward gear to rotate, thereby driving the movable shaft, the threaded rod, the third bevel gear, the fourth bevel gear, the sliding block, the connecting arm and the test probe connected with the forward gear to move forward, so that the test probe fits the positive and negative electrodes of the sodium ion battery to perform current and voltage charge and discharge tests, and then, after the test is completed, the test probe is connected to the positive and negative electrodes of the sodium ion battery. The disc drives the eccentric gear at the eccentric part to rotate, and then drives the meshing reverse gear to rotate (the rotation angle is 180 degrees after the rotation of the forward gear), so that the test probes attached to the positive and negative electrodes of the sodium ion battery can be kept away from the positive and negative electrodes of the battery, which is convenient for driving the sodium ion battery to be transported and moved after the test is completed, and the next set of tests or the transportation after the test is completed. The forward and reverse rotation (i.e., one test process) is completed by rotating the disc 360 degrees, which can be carried out uninterruptedly, thereby improving the efficiency of the charge and discharge test;

[0039] 4. In the sodium ion battery charge and discharge test device, when the sodium ion battery is subjected to current and voltage charge and discharge tests, the force driving the threaded rod and the movable shaft to rotate is completed by the meshing of the gears (the eccentric gear and the forward gear and the reverse gear respectively), the force driving the rotating shaft to rotate is completed by the meshing of the gears (the first bevel gear and the second bevel gear), and the force driving the test probe to move is completed by the thread drive. That is, the entire process mentioned above has a high transmission ratio and stability during operation, thereby ensuring the accuracy when testing the sodium ion battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0041] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a schematic structural diagram of the overall side view of the present invention;

[0044] Figure 3 It is a schematic diagram of the structure of the present invention as a whole viewed from above;

[0045] Figure 4 It is a schematic diagram of the overall front view of the structure of the present invention;

[0046] Figure 5 It is a schematic diagram of the structure of the present invention as a whole from the left;

[0047] Figure 6 It is a schematic diagram of the structure of the connection between the test machine and the transmission component of the present invention;

[0048] Figure 7 It is a structural schematic diagram of the connection between the transmission component and the servo motor of the present invention;

[0049] Figure 8 It is a structural schematic diagram of the servo motor of the present invention connected with the charging and discharging test mechanism through the transmission component;

[0050] Fig. 9 It is a structural schematic diagram of the connection between the transmission component and the charge and discharge test mechanism of the present invention;

[0051] Fig.10 It is a schematic structural diagram of the connection between the drive shaft and the third bevel gear of the present invention;

[0052] Fig.11 It is a schematic diagram of the structure in which two groups of forward and reverse reversing components of the present invention are connected via a second belt;

[0053] Fig.12 It is a schematic structural diagram of the connection between the rotating shaft and the gear telescopic assembly of the present invention;

[0054] Fig.13 It is a structural schematic diagram of the connection between the gear telescopic assembly and the voltage charge and discharge tester of the present invention;

[0055] In the figure:

[0056] 10. Testing machine; 10i. Working station;

[0057] 20. Battery rack; 20i. Sodium ion battery; 20a. Support; 20b. Semicircular rack;

[0058] 30, transmission component; 30i, servo motor; 301, drive shaft; 302, transmission wheel; 303, transmission belt;

[0059] 40. Charge and discharge test mechanism; 40i. Bracket;

[0060] 50. Cutting equipment;

[0061] 60. Transmission assembly; 601. First belt; 602. First rotating shaft; 603. Second belt; 604. Second rotating shaft;

[0062] 70, forward and reverse rotation assembly; 701, first bevel gear; 702, second bevel gear; 703, rotating shaft; 704, disc; 705, eccentric gear; 706, forward gear; 707, movable shaft; 708, reverse gear; 709, positioning bump;

[0063] 80, gear telescopic assembly; 80i, wire; 80a, voltage charge and discharge tester; 80b, current charge and discharge tester; 801, threaded rod; 802, third bevel gear; 803, fourth bevel gear; 804, sliding block; 805, connecting arm; 806, test probe;

[0064] 90, support arm; 90i, camera end. DETAILED DESCRIPTION

[0065] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0066] See also Figure 1 - Fig.13The sodium ion battery charge and discharge test device comprises a test machine 10, a battery placement rack 20, a transmission component 30, a charge and discharge test mechanism 40 and a feeding device 50. The transmission component 30 is installed inside the test machine 10, and the transmission component 30 is driven by a servo motor 30i installed on the side of the test machine 10. A plurality of battery placement racks 20 are arranged equidistantly on the top of the transmission component 30, and a sodium ion battery 20i is supported and positioned inside the battery placement rack 20; wherein, the bottom of the transmission component 30 is connected to the charge and discharge test mechanism 40, and the charge and discharge test mechanism 40 is installed on the top of the bracket 40i, and the bracket 40i is installed on the top of the test machine 10 by bolts, and the feeding device 50 is installed on the top of the port part of the test machine 10. The testing mechanism 40 includes a transmission assembly 60, which is installed at the bottom of the transmission assembly 30 and is movably connected to the side of the testing machine 10. The side of the transmission assembly 60 is connected to a forward and reverse assembly 70, which is installed on the side of the bracket 40i and is provided in two groups; a gear telescopic assembly 80, which is installed on the side of the forward and reverse assembly 70 and is located on the inner side of the bracket 40i. The gear telescopic assembly 80 performs a charge and discharge test on the sodium ion battery 20i. The gear telescopic assembly 80 is connected to a voltage charge and discharge tester 80a and a current charge and discharge tester 80b through a wire 80i, respectively. The voltage charge and discharge tester 80a and the current charge and discharge tester 80b are respectively installed on the top of the two groups of brackets 40i.

[0067] The above working principle: when the sodium ion battery 20i produced and processed is subjected to charge and discharge test, a plurality of sodium ion batteries 20i are placed inside the unloading device 50, and the unloading operation is completed by the unloading device 50, and the unloaded sodium ion battery 20i will move to the top of the battery placement rack 20, and the sodium ion battery 20i will be supported by the battery placement rack 20. Afterwards, when the charge and discharge test is performed, the transmission component 30 can drive the battery placement rack 20 and the sodium ion battery 20i on the top to move to the bottom of the voltage charge and discharge tester 80a and the current charge and discharge tester 80b, and the corresponding voltage and current charge and discharge test operations are performed by the voltage charge and discharge tester 80a and the current charge and discharge tester 80b. When the above operation is actually performed, the test is performed The gear telescopic component 80 is driven by the transmission component 60 to drive the forward and reverse component 70 to automatically complete the operation of fitting and moving away from the positive and negative electrodes of the sodium ion battery 20i, and complete the automated charge and discharge test operation. At the same time, the voltage charge and discharge tester 80a and the current charge and discharge tester 80b for testing can be driven by the transmission component 60 to perform synchronous operations, that is, when the voltage charge and discharge test is performed on the next group of sodium ion batteries 20i, the current charge and discharge test of the previous group of sodium ion batteries 20i can be performed synchronously, thereby improving the efficiency of the charge and discharge test. The driving force for driving the transmission component 60 to operate is provided by the servo motor 30i connected to the transmission component 30, and the charge and discharge test operation is performed while the sodium ion battery 20i is transported, so that the cost of the device is lower.

[0068] Specific reference Figure 6 Working positions 10i are also provided on both sides of the end of the test platform 10 away from the unloading device 50. A support arm 90 is installed on the side of the test platform 10 close to the bracket 40i. A camera end 90i is installed on the top of the support arm 90. Through the design of the support arm 90, the camera end 90i connected to the top of the support arm 90 can be directed to the position where the sodium ion battery 20i is tested.

[0069] In this embodiment, the camera end 90i is disposed toward the sodium ion battery 20i. The design of the camera end 90i can determine whether each group of sodium ion batteries 20i to be tested is tested and record the results.

[0070] Specific reference Figure 6 and Figure 7 The battery placement rack 20 is composed of a support 20a and a semicircular frame 20b. The support 20a is installed on the top of the transmission component 30 and is slidably connected to the inner side of the test machine 10. A semicircular frame 20b is arranged at the inner center of the support 20a, and a sodium ion battery 20i is supported inside the semicircular frame 20b.

[0071] In the sodium ion battery charge and discharge test device of the present invention, when the unloading device 50 performs unloading operation, the unloaded sodium ion battery 20i will fall into the interior of the semicircular frame 20b, and the semicircular frame 20b is matched with the sodium ion battery 20i to complete the positioning of the position of the sodium ion battery 20i.

[0072] Specific reference Figure 6 and Figure 7 The transmission component 30 includes a driving shaft 301, which is connected to the output end of the servo motor 30i and passes through the test machine 10. A transmission wheel 302 is installed on the outside of the driving shaft 301, and a transmission belt 303 is connected to the outside of the transmission wheel 302; wherein the transmission belt 303 is movably connected to the inner side of the test machine 10, and two groups of transmission wheels 302 are provided, and both are rotatably connected to the inner side of the test machine 10.

[0073] In this embodiment, the bottom of the driving shaft 301 is connected to a transmission assembly 60, and the top of the conveyor belt 303 is supported by a plurality of equally spaced supports 20a. The transmission assembly 60 can be synchronously driven to operate by the rotation of the driving shaft 301 to perform subsequent charge and discharge test operations.

[0074] In the sodium ion battery charge and discharge test device of the present invention, when testing a sodium ion battery 20i, the tested sodium ion battery 20i, and the support 20a and the semicircular frame 20b supporting it, will drive the output end drive shaft 301 to rotate through the servo motor 30i, thereby driving the external transmission wheel 302 and the transmission belt 303 of the drive shaft 301 to move, and when it moves to the bottom of the bracket 40i, the current and voltage charge and discharge test operation is performed.

[0075] Specific reference Figure 8 , Fig. 9 , Fig.10 and Fig.11 The transmission assembly 60 includes a first belt 601, which is connected to the outer side of the driving shaft 301 through a pulley and is movably connected to the side of the testing machine 10. The inner side of the first belt 601 is also connected to a first rotating shaft 602 through a pulley, and the first rotating shaft 602 is arranged away from the driving shaft 301; a second belt 603, which is connected to the outer side of the first rotating shaft 602 through a pulley, and the inner side of the second belt 603 is also connected to a second rotating shaft 604 through a pulley, and the second rotating shaft 604 is arranged away from the first rotating shaft 602.

[0076] In this embodiment, the first rotating shaft 602 and the second rotating shaft 604 are both rotatably connected inside the bracket 40i and rotatably connected to the side of the testing machine 10. The design of the first rotating shaft 602 and the second rotating shaft 604 can ensure the stability of both during rotation.

[0077] Meanwhile, in this embodiment, the sides of the first rotating shaft 602 and the second rotating shaft 604 are both connected with the forward and reverse components 70 , and through the design of the first rotating shaft 602 and the second rotating shaft 604 , the two sets of forward and reverse components 70 can be synchronously driven to operate.

[0078] In the sodium ion battery charge and discharge test device of the present invention, when the driving shaft 301 drives the sodium ion battery 20i to be transported and moved, it will synchronously drive the first belt 601 connected to the bottom thereof through the pulley for transmission, and then drive the first rotating shaft 602 connected to the inner side of the first belt 601 through the pulley to rotate, thereby driving the forward and reverse components 70 connected to the side of the first rotating shaft 602 to operate, and when the first rotating shaft 602 rotates, it will drive the second belt 603 connected to the outer side through the pulley for transmission, and then drive the second rotating shaft 604 connected to the inner side of the second belt 603 through the pulley to rotate, and finally synchronously drive another group of forward and reverse components 70 connected to the side of the second rotating shaft 604 to operate.

[0079] Specific reference Fig.10 , Fig.11 and Fig.12 The forward and reverse rotation assembly 70 includes a first bevel gear 701, which is mounted on the side of the first rotating shaft 602 and the second rotating shaft 604. The side of the first bevel gear 701 is meshed with the second bevel gear 702. The first bevel gear 701 and the second bevel gear 702 are both rotatably connected to the side of the bracket 40i; a rotating shaft 703, which is mounted at the center of the second bevel gear 702 and rotatably connected to the inside of the bracket 40i. The top of the rotating shaft 703 supports a disc 704, and the eccentric portion of the disc 704 An eccentric gear 705 is installed; a forward gear 706, which is installed on the top of the disk 704 and meshingly connected with the eccentric gear 705, and a movable shaft 707 is connected through the inner center of the forward gear 706, and the movable shaft 707 is rotatably connected to the side of the bracket 40i; a reverse gear 708, which is installed on the outer side of the movable shaft 707 and meshingly connected with the eccentric gear 705, and the reverse gear 708 is movably connected to the side of a positioning protrusion 709, and the positioning protrusion 709 is installed at the edge of the top of the bracket 40i.

[0080] In this embodiment, the forward gear 706 and the reverse gear 708 are symmetrically arranged relative to the central axis of the disk 704. By designing the positions of the forward gear 706 and the reverse gear 708, the eccentric gear 705 will always be engaged with the forward gear 706 and the reverse gear 708 when rotated by the disk 704, thereby driving the forward gear 706 and the reverse gear 708 to rotate in opposite directions.

[0081] Meanwhile, in the present embodiment, the bottom of the movable shaft 707 is connected with a gear telescopic assembly 80 , and the gear telescopic assembly 80 can be driven to operate by the rotation of the movable shaft 707 .

[0082] In the sodium ion battery charge and discharge test device of the present invention, when the first rotating shaft 602 and the second rotating shaft 604 rotate, the first bevel gear 701 connected to the side thereof will be driven to rotate, and then the second bevel gear 702 meshed with the first bevel gear 702 will be driven to rotate, and the rotation of the second bevel gear 702 will drive the rotating shaft 703 connected to the central part thereof to rotate, thereby driving the disc 704 connected to the top of the rotating shaft 703 to rotate, and the rotation of the disc 704 will drive the eccentric gear 705 installed on the eccentric part thereof to rotate, and when the eccentric gear 705 moves to the bottom of the forward gear 706, the forward gear 706 will be driven to rotate in the forward direction, and when the eccentric gear 705 moves to the bottom of the reverse gear 708, the forward gear 706 will be driven to rotate in the reverse direction, and when the forward gear 706 or the reverse gear 708 rotates, the movable shaft 707 connected to the inner center thereof will be driven to rotate forward and reverse, thereby driving the gear telescopic assembly 80 to perform uninterrupted forward and reverse rotation.

[0083] Specific reference Fig.12 and Fig.13 The gear telescopic assembly 80 includes a threaded rod 801, which is installed on the side of the movable shaft 707 and is rotatably connected to the side of the bracket 40i. A third bevel gear 802 is installed at the bottom of the threaded rod 801, and a fourth bevel gear 803 is meshedly connected to the side of the third bevel gear 802; a sliding block 804, which is threadedly connected to the outside of the threaded rod 801 and slidably connected to the bottom of the bracket 40i, and a connecting arm 805 is installed at the bottom of the sliding block 804; a test probe 806, which is installed on the side of the connecting arm 805 and connected to the side of the sodium ion battery 20i, and the test probe 806 is connected to the voltage charge and discharge tester 80a and the current charge and discharge tester 80b through the wire 80i.

[0084] In this embodiment, the fourth bevel gear 803 is rotatably connected to the center of the bottom of the bracket 40i, and two groups of third bevel gears 802 are provided, and are symmetrically arranged relative to the central axis of the fourth bevel gear 803. A threaded rod 801 is also installed at the bottom of the fourth bevel gear 803. The two groups of third bevel gears 802 can be meshed and connected with the fourth bevel gear 803 by design, so that the two groups of threaded rods 801 have the same rotation direction.

[0085] Meanwhile, in this embodiment, the thread directions of the two sets of threaded rods 801 are opposite. By designing the thread directions of the threaded rods 801, the two sets of sliding blocks 804 connected by the external threads of the two sets of threaded rods 801 move in opposite directions.

[0086] In the sodium ion battery charge and discharge test device of the present invention, when the movable shaft 707 rotates forward and reversely, the threaded rod 801 connected to the bottom thereof will be driven to perform corresponding forward and reverse rotations, and when the threaded rod 801 rotates, the third bevel gear 802 connected to the bottom thereof will be driven to rotate, and the fourth bevel gear 803 meshedly connected to the side of the third bevel gear 802 will be driven to rotate, and the rotation of the fourth bevel gear 803 will drive another group of third bevel gears 802 and the threaded rod 801 meshedly connected to the side thereof to rotate, wherein, when the threaded rod 801 rotates, it will drive the sliding block 804 threadedly connected to the outer side thereof to move, and then drive the connecting arm 805 and the test probe 806 connected to the bottom of the sliding block 804 to move, respectively, to perform charge and discharge tests by attaching the positive and negative electrodes of the sodium ion battery 20i, and after completing the test, to move away from the positive and negative electrodes of the sodium ion battery 20i, thereby realizing an automated sodium ion battery 20i charge and discharge test operation.

[0087] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Sodium ion battery charge and discharge test device, characterized in that: The invention comprises a test machine (10), a battery placement rack (20), a transmission component (30), a charge and discharge test mechanism (40), and a material unloading device (50); the transmission component (30) is installed inside the test machine (10); the transmission component (30) is driven by a servo motor (30i) installed on the side of the test machine (10); a plurality of battery placement racks (20) are arranged at equal intervals on the top of the transmission component (30); and a sodium ion battery (20i) is supported and positioned inside the battery placement rack (20); The bottom of the transmission component (30) is connected to a charge and discharge test mechanism (40), the charge and discharge test mechanism (40) is mounted on the top of a bracket (40i), the bracket (40i) is mounted on the top of a test machine (10) by means of bolts, the unloading device (50) is mounted on the top of a port portion of the test machine (10), and the charge and discharge test mechanism (40) comprises: A transmission assembly (60), the transmission assembly (60) being mounted on the bottom of the transmission assembly (30) and being movably connected to the side of the testing machine (10), the side of the transmission assembly (60) being connected to a forward and reverse assembly (70), the forward and reverse assembly (70) being mounted on the side of the bracket (40i), and two groups of the forward and reverse assembly (70) being provided; a gear telescopic assembly (80), the gear telescopic assembly (80) being mounted on a side of the forward and reverse rotation assembly (70) and being located on an inner side of the bracket (40i); the gear telescopic assembly (80) performing a charge and discharge test on the sodium ion battery (20i); the gear telescopic assembly (80) being connected to a voltage charge and discharge tester (80a) and a current charge and discharge tester (80b) through a wire (80i); the voltage charge and discharge tester (80a) and the current charge and discharge tester (80b) being mounted on the top of two sets of brackets (40i); The transmission component (30) comprises: A driving shaft (301), the driving shaft (301) being connected to an output end of the servo motor (30i) and being arranged to penetrate the testing machine (10); a transmission wheel (302) being installed on the outside of the driving shaft (301); and a transmission belt (303) being connected to the outside of the transmission wheel (302); The conveyor belt (303) is movably connected to the inner side of the testing machine (10), and two sets of transmission wheels (302) are provided, and both are rotatably connected to the inner side of the testing machine (10); The bottom of the driving shaft (301) is connected to a transmission assembly (60), and the top of the transmission belt (303) is supported by a plurality of equally spaced supports (20a); The transmission assembly (60) comprises: A first belt (601), the first belt (601) being connected to the outside of the driving shaft (301) via a pulley and being movably connected to the side of the testing machine (10), the inside of the first belt (601) being also connected to a first rotating shaft (602) via a pulley, and the first rotating shaft (602) being arranged away from the driving shaft (301); a second belt (603), wherein the second belt (603) is connected to the outer side of the first rotating shaft (602) via a pulley, and the inner side of the second belt (603) is also connected to the second rotating shaft (604) via a pulley, and the second rotating shaft (604) is arranged away from the first rotating shaft (602); The first rotating shaft (602) and the second rotating shaft (604) are both rotatably connected inside the bracket (40i), and are rotatably connected to the side of the testing machine (10); Wherein, the sides of the first rotating shaft (602) and the second rotating shaft (604) are both connected with a forward and reverse rotation assembly (70); The forward and reverse rotation component (70) comprises: a first bevel gear (701), the first bevel gear (701) being mounted on the side surfaces of the first rotating shaft (602) and the second rotating shaft (604), the side surfaces of the first bevel gear (701) being meshingly connected with the second bevel gear (702), and the first bevel gear (701) and the second bevel gear (702) being rotatably connected to the side surfaces of the bracket (40i); A rotating shaft (703), the rotating shaft (703) being mounted at the center of the second bevel gear (702) and being rotatably connected to the interior of the bracket (40i); a disc (704) being supported on the top of the rotating shaft (703), and an eccentric gear (705) being mounted at the eccentric portion of the disc (704); a forward gear (706), the forward gear (706) being mounted on the top of the disc (704) and meshingly connected with the eccentric gear (705); a movable shaft (707) passing through the inner center of the forward gear (706), and the movable shaft (707) being rotatably connected to the side of the bracket (40i); a reverse gear (708), the reverse gear (708) being mounted on the outside of the movable shaft (707) and meshingly connected with the eccentric gear (705), the reverse gear (708) being movably connected to a side surface of a positioning protrusion (709), the positioning protrusion (709) being mounted on the edge of the top of the bracket (40i); The forward gear (706) and the reverse gear (708) are symmetrically arranged relative to the central axis of the disk (704), and the bottom of the movable shaft (707) is connected to a gear telescopic assembly (80); The gear telescopic assembly (80) comprises: a threaded rod (801), the threaded rod (801) being mounted on a side of the movable shaft (707) and being rotatably connected to a side of the bracket (40i); a third bevel gear (802) being mounted on the bottom of the threaded rod (801); and a fourth bevel gear (803) being meshingly connected to a side of the third bevel gear (802); The fourth bevel gear (803) is rotatably connected to the center of the bottom of the bracket (40i); two groups of the third bevel gear (802) are provided and are symmetrically arranged relative to the central axis of the fourth bevel gear (803); a threaded rod (801) is also installed at the bottom of the fourth bevel gear (803); and the thread directions of the two groups of threaded rods (801) are opposite; A sliding block (804), the sliding block (804) being threadedly connected to the outside of the threaded rod (801) and slidably connected to the bottom of the bracket (40i), and a connecting arm (805) being installed at the bottom of the sliding block (804); A test probe (806), the test probe (806) being mounted on a side of the connecting arm (805) and connected to a side of the sodium ion battery (20i), the test probe (806) being connected to a voltage charge and discharge tester (80a) and a current charge and discharge tester (80b) respectively via a wire (80i); When the driving shaft (301) drives the sodium ion battery (20i) to be transported and moved, it will synchronously drive the first belt (601) connected to the bottom through the pulley to transmit, and then drive the first rotating shaft (602) connected to the inner side of the first belt (601) through the pulley to rotate, thereby driving the forward and reverse components (70) connected to the side of the first rotating shaft (602) to operate, and when the first rotating shaft (602) rotates, it will drive the second belt (603) connected to the outer side through the pulley to transmit, and then drive the second rotating shaft (604) connected to the inner side of the second belt (603) through the pulley to rotate, and finally synchronously drive another group of forward and reverse components (70) connected to the side of the second rotating shaft (604) to operate; When the first rotating shaft (602) and the second rotating shaft (604) rotate, the first bevel gear (701) connected to the side thereof will be driven to rotate, thereby driving the second bevel gear (702) meshed therewith to rotate. The rotation of the second bevel gear (702) will drive the rotating shaft (703) connected to the center thereof to rotate, thereby driving the disk (704) connected to the top of the rotating shaft (703) to rotate. The rotation of the disk (704) will drive the eccentric gear (701) installed on the eccentric portion thereof to rotate. 05) rotates, when the eccentric gear (705) moves to the bottom of the forward gear (706), it drives the forward gear (706) to rotate in the forward direction, and when the eccentric gear (705) moves to the bottom of the reverse gear (708), it drives the forward gear (706) to rotate in the reverse direction, and when the forward gear (706) or the reverse gear (708) rotates, it drives the movable shaft (707) connected at the center thereof to rotate forward and reverse, thereby driving the gear telescopic assembly (80) to rotate forward and reverse continuously; When the movable shaft (707) rotates forward and reverse, it drives the threaded rod (801) connected to its bottom to rotate forward and reverse accordingly. When the threaded rod (801) rotates, it drives the third bevel gear (802) connected to its bottom to rotate, and drives the fourth bevel gear (803) meshed with the side of the third bevel gear (802) to rotate. The rotation of the fourth bevel gear (803) drives another set of third bevel gears (802) and the threaded rod (801) meshed with the side to rotate. When the threaded rod (801) rotates, it drives the sliding block (804) connected to its outer thread to move, and then drives the connecting arm (805) and the test probe (806) connected to the bottom of the sliding block (804) to move, respectively, to fit the positive and negative electrodes of the sodium ion battery (20i) for charge and discharge testing, and after the test is completed, to move away from the positive and negative electrodes of the sodium ion battery (20i), thereby realizing an automated sodium ion battery (20i) charge and discharge test operation.

2. The sodium ion battery charge and discharge test device according to claim 1, characterized in that: Working positions (10i) are also provided on both sides of one end of the test machine (10) away from the unloading device (50); a support arm (90) is installed on one side of the test machine (10) close to the bracket (40i); a camera end (90i) is installed on the top of the support arm (90); and the camera end (90i) is arranged toward the sodium ion battery (20i).

3. The sodium ion battery charge and discharge test device according to claim 1, characterized in that: The battery placement rack (20) is composed of a support (20a) and a semicircular frame (20b); the support (20a) is installed on the top of the transmission component (30) and is slidably connected to the inner side of the test machine (10); a semicircular frame (20b) is arranged at the inner center of the support (20a); and a sodium ion battery (20i) is supported inside the semicircular frame (20b).

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