Fusing characteristic testing equipment of composite current collector

Abstract

The utility model relates to the technical field of composite current collectors, and discloses composite current collector fusing characteristic test equipment, which comprises a box body, a fixed table is fixedly connected in the box body, a fixed seat is fixedly connected at the top of the fixed table, a movable block is slidably connected in the fixed seat, and one end of the movable block is fixedly connected with a movable seat. The positive and negative screw rod is driven by the motor to rotate, the positive and negative screw rod drives the moving block and the moving seat to move, the clamping block is adjusted, the clamping block is matched with the composite current collector to be tested, then the composite current collector is placed on the clamping surface of the clamping block, the two sides of the composite current collector are located at conductive blocks on the clamping block, and then the air cylinder extends out of the push block; when the device is used, the push block drives the push rod to slide in the sliding groove in the connecting block, the connecting block drives the sliding block to slide on the moving seat, and meanwhile, the connecting block drives the clamping block to clamp the composite current collector, so that the device can adapt to the composite current collectors with different sizes, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite current collector technology, specifically a testing device for the melting characteristics of composite current collectors. Background Technology

[0002] Composite current collectors are a novel key material for batteries, primarily used in lithium-ion batteries. They are formed by combining a polymer substrate with a metal coating through processes such as magnetron sputtering and electroplating. Compared to traditional metal current collectors, their core advantage lies in their "sandwich" structure design: the middle layer is a lightweight polymer film, with micron-sized conductive metal layers deposited on both sides. This structure combines lightweight, high safety, and high energy density. Its unique design can suppress lithium dendrite penetration, reducing the risk of battery short circuits, while the flexibility of the polymer material allows it to be adapted to battery forming processes such as winding and stacking.

[0003] The fixtures of existing fusing characteristic testing equipment are mostly designed with fixed dimensions, which can only match composite current collectors of fixed dimensions and cannot be adapted to composite current collectors of different sizes, thus reducing the practicality of the fusing characteristic testing equipment. Utility Model Content

[0004] To achieve the above objectives, this utility model proposes a testing device for the fusing characteristics of composite current collectors.

[0005] The technical solution of this utility model is implemented as follows: A composite current collector fusing characteristic testing device includes a housing, a fixed platform fixedly connected inside the housing, a fixed seat fixedly connected to the top of the fixed platform, a movable block slidably connected inside the fixed seat, a movable seat fixedly connected to one end of the movable block, a cylinder fixedly connected inside the movable seat, a push block slidably connected inside the movable seat, a push rod fixedly connected inside the push block, a connecting block slidably connected to one end of the movable seat, a sliding groove opened on one side of the connecting block, a clamping block fixedly connected to one end of the connecting block, a conductive block fixedly connected to the clamping surface of the clamping block, an electromagnetic compensation actuator fixedly connected inside the clamping block, a support block fixedly connected to the back of the clamping surface of the clamping block, a rotating base rotatably connected inside the support block, a fixed pipe fixedly connected to one side of the rotating base, a nozzle fixedly connected to one side of the fixed pipe, and an infrared thermal imager fixedly connected inside the housing.

[0006] Preferably, the cylinder is fixedly connected to the push block, and the push rod is slidably connected to the sliding groove on the connecting block.

[0007] Preferably, a slider is fixedly connected to one end of the connecting block. The slider is T-shaped and is slidably connected to the movable seat.

[0008] Preferably, the conductive block is electrically connected to the power supply via a wire, and the surface of the conductive block is plated with nickel.

[0009] Preferably, a motor is fixedly connected to one side of the fixed base, and a positive and negative lead screw is rotatably connected inside the fixed base. The motor is fixedly connected to the positive and negative lead screw, and the positive and negative lead screw is rotatably connected to the moving block.

[0010] Preferably, a first connecting seat is fixedly connected to the back of the clamping surface of the clamping block, the first connecting seat is hinged to the electric telescopic rod, the electric telescopic rod is hinged to a second connecting seat, and the second connecting seat is fixedly connected to the rotating base.

[0011] Preferably, an angle sensor is installed inside the rotating base, and a controller is installed inside the housing.

[0012] Preferably, a connecting hose is fixedly connected to one end of the fixed tube, a pump body is fixedly connected to the bottom of the connecting hose, a storage tank is fixedly connected to the bottom of the pump body, and an electrolyte is provided in the storage tank.

[0013] This utility model has the following beneficial effects:

[0014] 1. The composite current collector fusing characteristic testing equipment uses a motor to drive the positive and negative lead screws to rotate. The positive and negative lead screws then move the moving block and the moving seat, adjusting the clamping block to fit the composite current collector being tested. The composite current collector is then placed on the clamping surface of the clamping block, with both sides of the composite current collector positioned at the conductive blocks on the clamping block. Subsequently, a cylinder extends a push block, which drives a push rod to slide in the groove on the connecting block. The connecting block then drives the slider to slide on the moving seat. Simultaneously, the connecting block drives the clamping block to hold the composite current collector. In this way, the equipment can be adapted to composite current collectors of different sizes, thereby improving its practicality.

[0015] 2. The melting characteristic testing equipment for this composite current collector uses an angle sensor inside the rotating base to transmit a signal to the controller when the angle of the nozzle deviates from the preset position. The controller then controls the electric telescopic rod to extend or retract, which in turn drives the rotating base to rotate via the second connecting seat. The rotating base then adjusts the direction of the nozzle, ensuring that the nozzle sprays onto the sprayed areas on the upper and lower surfaces of the composite current collector with precise alignment and allowing for rapid wetting of the upper and lower surfaces, thereby improving testing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the relevant positions of the movable base of this utility model;

[0018] Figure 3 This is a schematic diagram showing the relevant positions of the pusher block of this utility model;

[0019] Figure 4 This is a schematic diagram showing the relevant positions of the push rod of this utility model;

[0020] Figure 5 This is a schematic diagram showing the relevant positions of the slide groove in this utility model;

[0021] Figure 6 This is a schematic diagram showing the relevant positions of the electric telescopic pole of this utility model.

[0022] The following are the labeling elements in the figure:

[0023] 1. Housing; 2. Infrared thermal imager; 3. Fixing platform; 4. Fixing base; 5. Motor; 6. Positive and negative lead screws; 7. Moving block; 8. Moving base; 9. Cylinder; 10. Push block; 11. Push rod; 12. Connecting block; 13. Slide groove; 14. Slider; 15. Clamping block; 16. Conductive block; 17. Electromagnetic compensation actuator; 18. First connecting base; 19. Electric telescopic rod; 20. Second connecting base; 21. Rotating base; 22. Support block; 23. Fixing pipe; 24. Nozzle; 25. Connecting hose; 26. Pump body; 27. Storage tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-6 As shown, the composite current collector fusing characteristic testing equipment provided in this embodiment includes a housing 1, a fixed platform 3 fixedly connected inside the housing 1, a fixed seat 4 fixedly connected to the top of the fixed platform 3, a movable block 7 slidably connected inside the fixed seat 4, a movable seat 8 fixedly connected to one end of the movable block 7, a cylinder 9 fixedly connected inside the movable seat 8, a push block 10 slidably connected inside the movable seat 8, a push rod 11 fixedly connected inside the push block 10, a connecting block 12 slidably connected to one end of the movable seat 8, a sliding groove 13 opened on one side of the connecting block 12, a clamping block 15 fixedly connected to one end of the connecting block 12, a conductive block 16 fixedly connected to the clamping surface of the clamping block 15, an electromagnetic compensation actuator 17 fixedly connected inside the clamping block 15, a support block 22 fixedly connected to the back of the clamping surface of the clamping block 15, a rotating base 21 rotatably connected inside the support block 22, a fixed pipe 23 fixedly connected to one side of the rotating base 21, a nozzle 24 fixedly connected to one side of the fixed pipe 23, and an infrared thermal imager 2 fixedly connected inside the housing 1.

[0026] Furthermore, the cylinder 9 is fixedly connected to the push block 10, and the push rod 11 is slidably connected to the sliding groove 13 on the connecting block 12.

[0027] By adopting the above technical solution, the cylinder 9 extends the push block 10, which drives the push rod 11 to slide in the slide groove 13 on the connecting block 12, thereby pushing the clamping block 15 on the connecting block 12 to clamp.

[0028] Furthermore, a slider 14 is fixedly connected to one end of the connecting block 12. The slider 14 is T-shaped and is slidably connected to the movable seat 8.

[0029] By adopting the above technical solution and through the T-shaped structure design of the slider 14, the connecting block 12 can remain stable during movement.

[0030] Furthermore, the conductive block 16 is electrically connected to the power supply via a wire, and the surface of the conductive block 16 is plated with nickel.

[0031] By adopting the above technical solution, a dense and continuous metal coating layer is formed by plating nickel on the surface of the conductive block 16, which can effectively block the direct contact between the electrolyte and the conductive block 16 and avoid electrochemical corrosion or oxidation reaction caused by electrolyte penetration.

[0032] Furthermore, a motor 5 is fixedly connected to one side of the fixed base 4, and a positive and negative lead screw 6 is rotatably connected inside the fixed base 4. The motor 5 is fixedly connected to the positive and negative lead screw 6, and the positive and negative lead screw 6 is rotatably connected to the moving block 7.

[0033] By adopting the above technical solution, the motor 5 drives the positive and negative lead screws 6 to rotate, and the positive and negative lead screws 6 drive the moving block 7 to move, so that the clamping block 15 can be adjusted.

[0034] Furthermore, a first connecting seat 18 is fixedly connected to the back of the clamping surface of the clamping block 15. The first connecting seat 18 is hinged to the electric telescopic rod 19, the electric telescopic rod 19 is hinged to the second connecting seat 20, and the second connecting seat 20 is fixedly connected to the rotating base 21.

[0035] Furthermore, an angle sensor is installed inside the rotating base 21, and a controller is installed inside the housing 1.

[0036] By adopting the above technical solution, when the angle sensor detects that the angle of the nozzle 24 deviates from the preset position, it transmits the signal to the controller, and the controller controls the extension or retraction of the electric telescopic rod 19. The electric telescopic rod 19 then drives the rotating base 21 to rotate through the second connecting seat 20, so that the nozzle 24 sprays in the area of ​​the composite collector without deviating.

[0037] Furthermore, a connecting hose 25 is fixedly connected to one end of the fixed tube 23, a pump body 26 is fixedly connected to the bottom of the connecting hose 25, a storage tank 27 is fixedly connected to the bottom of the pump body 26, and an electrolyte is provided inside the storage tank 27.

[0038] By adopting the above technical solution, the electrolyte in the storage tank 27 is extracted by the pump body 26, and then the electrolyte is transported to the fixed pipe 23 through the connecting hose 25. Finally, the nozzle 24 sprays the electrolyte in the fixed pipe 23 onto the upper and lower surfaces of the composite current collector.

[0039] Working principle: During use, the operator starts motor 5, which drives the forward and reverse lead screw 6 to rotate. The lead screw 6 then moves the moving block 7 and the moving seat 8, allowing adjustment of the clamping block 15 to fit the composite current collector being tested. Next, the composite current collector is placed on the clamping surface of the clamping block 15, with both sides of the composite current collector positioned at the conductive blocks 16 on the clamping block 15. Then, cylinder 9 extends push block 10, which drives push rod 11 to slide in the groove 13 on connecting block 12, thus connecting block 12... The slider 14 slides on the movable seat 8. Simultaneously, the connecting block 12 drives the clamping block 15 to clamp the composite current collector. The conductive block 16 on the clamping block 15 also clamps both sides of the composite current collector. The electromagnetic compensation actuator 17 in the clamping block 15 monitors the clamping pressure in real time. When an abnormality is detected, the protection mechanism is immediately triggered to forcibly release the pressure of the cylinder 9, preventing excessive compression from damaging the composite current collector. When the angle sensor in the rotating base 21 detects that the angle of the nozzle 24 deviates from the preset position, it transmits a signal to the controller. The controller then controls the extension or retraction of the electric telescopic rod 19, which in turn drives the rotating base 21 to rotate via the second connecting seat 20. The rotating base adjusts the direction of the spray nozzle, ensuring precise alignment of the spray nozzle on the upper and lower surfaces of the composite current collector. Then, the pump body 26 extracts the electrolyte from the storage tank 27 and delivers it to the fixed pipe 23 via the connecting hose 25. Finally, the spray nozzle 24 sprays the electrolyte from the fixed pipe 23 onto the upper and lower surfaces of the composite current collector, allowing the composite... The upper and lower surfaces of the current collector are rapidly wetted to reduce oxidation or corrosion caused by the material coming into contact with air during the test, ensuring the reliability of the melting characteristic data. Then, the power supply passes current to the composite current collector through the conductive block 16, and the current will increase stepwise. The infrared thermal imager 2 inside the box 1 will capture the surface temperature distribution of the composite current collector in real time during the melting process, generate a high-resolution thermal image, and accurately record the temperature thresholds of key nodes such as material softening and fracture, such as the peak temperature at the moment of melting, until the composite current collector melts.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test apparatus for the fusing characteristics of composite current collectors, comprising a box (1), characterized in that: The housing (1) is fixedly connected to a fixed platform (3) inside. A fixed seat (4) is fixedly connected to the top of the fixed platform (3). A movable block (7) is slidably connected inside the fixed seat (4). A movable seat (8) is fixedly connected to one end of the movable block (7). A cylinder (9) is fixedly connected inside the movable seat (8). A push block (10) is slidably connected inside the movable seat (8). A push rod (11) is fixedly connected inside the push block (10). A connecting block (12) is slidably connected to one end of the movable seat (8). A sliding groove (13) is provided on one side of the connecting block (12). One end of the connecting block (12) is fixedly connected to a clamping block (15), the clamping surface of the clamping block (15) is fixedly connected to a conductive block (16), an electromagnetic compensation actuator (17) is fixedly connected inside the clamping block (15), a support block (22) is fixedly connected to the back of the clamping surface of the clamping block (15), a rotating base (21) is rotatably connected inside the support block (22), a fixing pipe (23) is fixedly connected to one side of the rotating base (21), a nozzle (24) is fixedly connected to one side of the fixing pipe (23), and an infrared thermal imager (2) is fixedly connected inside the housing (1).

2. The test apparatus of claim 1, wherein: The cylinder (9) is fixedly connected to the push block (10), and the push rod (11) is slidably connected to the sliding groove (13) on the connecting block (12).

3. The test apparatus of claim 1, wherein: One end of the connecting block (12) is fixedly connected to a slider (14), which is "T" shaped and is slidably connected to the movable seat (8).

4. The test apparatus of claim 1, wherein: The conductive block (16) is electrically connected to the power supply via a wire, and the surface of the conductive block (16) is plated with nickel.

5. The test apparatus of claim 1, wherein: A motor (5) is fixedly connected to one side of the fixed base (4), and a positive and negative lead screw (6) is rotatably connected inside the fixed base (4). The motor (5) is fixedly connected to the positive and negative lead screw (6), and the positive and negative lead screw (6) is rotatably connected to the moving block (7).

6. The test apparatus of claim 1, wherein: The back of the clamping surface of the clamping block (15) is fixedly connected to a first connecting seat (18), the first connecting seat (18) is hinged to an electric telescopic rod (19), the electric telescopic rod (19) is hinged to a second connecting seat (20), and the second connecting seat (20) is fixedly connected to a rotating base (21).

7. The test apparatus of claim 1, wherein: An angle sensor is installed inside the rotating base (21), and a controller is installed inside the housing (1).

8. The test apparatus of claim 1, wherein: One end of the fixed tube (23) is fixedly connected to a connecting hose (25), the bottom of the connecting hose (25) is fixedly connected to a pump body (26), the bottom of the pump body (26) is fixedly connected to a storage tank (27), and the storage tank (27) is filled with electrolyte.

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