Battery insulation testing device and coating machine

Abstract

This application discloses a battery insulation testing device and a coating machine. The battery insulation testing device includes an insulating frame, a feeding mechanism, two side testing mechanisms, and a bottom testing mechanism. The feeding mechanism is mounted on the insulating frame and is used to transport the battery along a first horizontal direction. The two side testing mechanisms move towards each other along the first horizontal direction to clamp the front and rear sides of the battery on the feeding mechanism and test the leakage current value of the sides. The bottom testing mechanism moves vertically to abut the bottom surface of the battery and tests the leakage current value of the bottom surface. Simultaneous insulation performance testing of the front, rear, and bottom surfaces of the battery enables insulation testing of multiple surfaces of the battery, improving the accuracy of overall battery testing.

Description

Technical Field

[0001] This application relates to the field of new energy equipment, and in particular to a battery insulation testing device and a coating machine. Background Technology

[0002] In the production process of power batteries and energy storage batteries, the reliability of the insulation protection of the cell's outer packaging directly determines the battery's safety performance throughout its lifespan. Therefore, insulation performance testing is required for the coated batteries before they leave the factory. However, existing battery insulation testing technologies suffer from inaccurate results due to insufficient testing coverage. Utility Model Content

[0003] This application provides a battery insulation testing device and a coating machine to perform insulation testing on multiple surfaces of a battery, thereby improving the accuracy of overall battery testing.

[0004] The battery insulation detection device provided in this application includes:

[0005] Insulating frame;

[0006] A feeding mechanism is provided on the insulating frame, and the feeding mechanism is used to transport batteries along a first horizontal direction;

[0007] Two side testing mechanisms are mounted on the insulating frame and located above the feeding mechanism. These two side testing mechanisms move towards each other along the first horizontal direction to clamp the front and rear sides of the battery on the conveying mechanism and test the leakage current value of the battery on both sides.

[0008] A bottom surface testing mechanism is disposed on the insulating frame. The bottom surface testing mechanism moves vertically to support the bottom surface of the battery and tests the leakage current value of the bottom surface of the battery.

[0009] Optionally, the bottom surface testing mechanism includes a first measuring component and a first driving component connected to the first measuring component;

[0010] The first measuring component includes a bottom insulating plate, a bottom insulating pad, and a bottom test plate stacked together. The bottom insulating plate is used to abut against the bottom surface of the battery. The bottom test plate is connected to the first driving component, which is used to drive the bottom test plate to move along the vertical direction.

[0011] Optionally, the first drive assembly includes a first cylinder, a first guide rail, a first slider, and a bottom lifting plate;

[0012] The fixed end of the first cylinder is connected to the insulating frame, and the movable end of the first cylinder is connected to the bottom surface of the bottom test plate; the first guide rail is connected to the insulating frame, the first slider is slidably connected to the first guide rail, and the bottom lifting plate is connected to the first slider and the bottom test plate;

[0013] The first cylinder drives the bottom test plate to move vertically relative to the first guide rail.

[0014] Optionally, the battery insulation detection device further includes a conveying mechanism, which includes a second drive assembly, a base plate, and a side plate;

[0015] The second drive assembly is mounted on the insulating frame, the base plate is connected to the second drive assembly, and the base plate is provided with the fixed end of the first cylinder; the side plates are located on both sides of the base plate along the first horizontal direction, and the side plates are provided with the first guide rail; the second drive assembly is used to drive the base plate to move relative to the insulating frame along the second horizontal direction, so as to drive the bottom surface testing mechanism to move, and the second horizontal direction is perpendicular to the first horizontal direction.

[0016] Optionally, the side testing mechanism includes a second measuring component, a third driving component, and a height adjustment component;

[0017] The second measuring component includes a side insulating plate, a side insulating pad, and a side test plate stacked together, wherein the side insulating plate is used to abut against the side of the battery; the third driving component is connected to the side test plate, and the third driving component drives the side test plate to move along the first horizontal direction toward the battery; the height adjustment component is connected to the insulating frame and the third driving component, and the height adjustment component drives the third driving component to move the side test plate along the vertical direction.

[0018] Optionally, the battery insulation detection device further includes a push rod mechanism, which includes a second mounting plate, a seventh drive assembly, and a push rod;

[0019] The second mounting plate is disposed on the insulating frame and located above the battery; the seventh drive assembly is connected to the second mounting plate, the push rod is connected to the seventh drive assembly, and the seventh drive assembly drives the push rod to move along the vertical direction toward the battery, thereby moving the battery toward the feeding mechanism.

[0020] Optionally, the push rod mechanism includes a second adjusting plate, one end of which is slidably connected to the second mounting plate along a second horizontal direction, and the other end is connected to the seventh drive assembly.

[0021] Optionally, the battery insulation detection device includes a probe mechanism, which includes a first mounting plate, a fourth driving assembly, a test probe, and a first adjustment plate.

[0022] The first mounting plate is disposed on the insulating frame and located above the battery; the fourth driving assembly is disposed on the first mounting plate; the test probe is connected to the fourth driving assembly, and the fourth driving assembly drives the test probe to move vertically toward the direction closer to the battery; one end of the first adjusting plate is slidably connected to the first mounting plate along the second horizontal direction, and the other end is connected to the fourth driving assembly.

[0023] Optionally, the battery insulation detection device includes a stop mechanism and a lifting mechanism;

[0024] The stopping mechanism includes a mounting frame, a fifth drive assembly, and a stop block. The mounting frame is disposed on the side of the conveying mechanism away from the battery. The fifth drive assembly is disposed on the mounting frame. The stop block is connected to the fifth drive assembly. The fifth drive assembly drives the stop block to move along the vertical direction. The stop block protrudes from the feeding mechanism to stop the battery from moving along the first horizontal direction.

[0025] The lifting mechanism includes a lifting block and a sixth drive assembly connected to the lifting block. The sixth drive assembly is connected to the insulating frame and drives the lifting block to move along the vertical direction. The lifting block protrudes from the feeding mechanism and lifts the battery, causing the battery to move away from the feeding mechanism.

[0026] This application embodiment also provides a coating machine, characterized in that it includes:

[0027] Encapsulation device;

[0028] The battery insulation testing device described in any of the above embodiments tests the battery after it has been coated by the coating device.

[0029] In the battery heating device and coating machine of this application, the insulation performance of the front, rear, and bottom surfaces of the battery is tested simultaneously. This achieves insulation testing of multiple battery surfaces, avoiding safety hazards caused by undetected insulation failures on the bottom or sides, and improving the accuracy of overall battery testing. The opposing movement of the side testing mechanism in contact with the battery surface ensures tightness and stability of the contact, further enhancing testing accuracy. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the battery insulation detection device provided in an embodiment of this application.

[0032] Figure 2 This is an exploded view of the battery insulation detection device provided in the embodiments of this application.

[0033] Figure 3 This is a schematic diagram of the bottom surface testing mechanism provided in an embodiment of this application.

[0034] Figure 4 This is a partial structural schematic diagram of the battery insulation detection device provided in the embodiments of this application.

[0035] Figure 5 This is a schematic diagram of the side testing mechanism provided in an embodiment of this application.

[0036] Figure 6 This is a schematic diagram of the probe mechanism provided in an embodiment of this application.

[0037] Figure 7 This is a schematic diagram of the stop mechanism provided in an embodiment of this application.

[0038] Figure 8 This is a schematic diagram of the lifting mechanism provided in an embodiment of this application.

[0039] Figure 9 This is a schematic diagram of the push rod mechanism provided in an embodiment of this application.

[0040] Explanation of icon numbers:

[0041] Battery insulation testing device 100, insulation frame 10, feeding mechanism 20, gap 21;

[0042] Side testing mechanism 30, second measuring component 31, side insulating plate 311, side insulating pad 312, side testing plate 313, third driving component 32, connecting plate 321, side clamping cylinder 322, mounting base 323, height adjustment component 33, height adjustment motor 331, motor mounting base 332, transmission rod 333, height adjustment guide rail 334;

[0043] Large-area testing facility 40;

[0044] Bottom surface testing mechanism 50, first measuring component 51, bottom insulating plate 511, bottom insulating pad 512, bottom testing plate 513, first driving component 52, first cylinder 521, first guide rail 522, first slider 523, bottom lifting plate 524.

[0045] Conveying mechanism 60, second drive assembly 61, base plate 62, side plate 63

[0046] Probe mechanism 70, first mounting plate 71, fourth drive assembly 72, test probe 73, second adjustment plate 74;

[0047] Push rod mechanism 80, second mounting plate 81, seventh drive assembly 82, push rod 83, second adjusting plate 84;

[0048] Stop mechanism 91, mounting bracket 911, fifth drive assembly 912, stop block 913;

[0049] Lifting mechanism 92, lifting block 921, sixth drive assembly 922;

[0050] Battery 200, side panel 201, main panel 202;

[0051] First horizontal direction X, second horizontal direction Y, vertical direction Z.

[0052] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0055] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] It should be understood that the term "and / or" as used in this application specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0058] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the battery insulation detection device 100 provided in the embodiments of this application. Figure 2 This is an exploded view of the battery insulation testing device 100 provided in an embodiment of this application. The battery insulation testing device 100 provided in this embodiment includes an insulating frame 10, a feeding mechanism 20, two side testing mechanisms 30, and a bottom testing mechanism 50. The feeding mechanism 20 is disposed on the insulating frame 10 and is used to feed the battery 200 along a first horizontal direction X.

[0059] Two side testing mechanisms 30 are disposed on the insulating frame 10 and located above the feeding mechanism 20. The two side testing mechanisms 30 move towards each other along the first horizontal direction X to clamp the front and rear sides of the battery 200 on the feeding mechanism 20 and test the leakage current value of the two sides 201 of the battery 200.

[0060] The bottom surface testing mechanism 50 is mounted on the insulating frame 10. The bottom surface testing mechanism 50 moves in the vertical direction Z to support the bottom surface of the battery 200 and tests the leakage current value of the bottom surface of the battery 200.

[0061] The insulating frame 10 serves as the basic carrier of the battery insulation testing device 100, providing mounting support for other components. The insulating frame 10 is typically made of high-strength insulating material to prevent signal interference between testing mechanisms due to frame conductivity, thus ensuring the accuracy of the test results.

[0062] The insulating frame 10 may include side fixing plates, upright plates, a middle reference plate, and support plates. The side fixing plates are fixed to the support plates, the upright plates are fixedly connected to the side fixing plates, and the middle reference plate is fixedly connected to the side fixing plates. The insulating frame 10 has a symmetrical structure, symmetrical front and back, and symmetrical left and right.

[0063] The feeding mechanism 20 is mounted on the insulating frame 10. The feeding mechanism 20 conveys the coated batteries 200, which are awaiting insulation testing, along a first horizontal direction X. The first horizontal direction X can be understood as the conveying direction of the batteries 200 on the production line. The feeding mechanism 20 can be a belt conveyor, chain conveyor, or roller conveyor, etc. A positioning structure can be provided on the conveying surface of the feeding mechanism 20, such as limiting blocks or positioning grooves symmetrically arranged along a second horizontal direction Y on the conveying surface, to prevent the batteries 200 from tipping over during conveying.

[0064] Two side testing mechanisms 30 are also mounted on the insulating frame 10 and located above the feeding mechanism 20. They move towards each other along the first horizontal direction X, clamping the front and rear sides of the battery 200 and simultaneously testing the leakage current value of these two sides 201. The side testing mechanism 30 may include a drive assembly, an insulating plate, and a test plate. The drive assembly may be a cylinder, an electric cylinder, or a servo motor with a lead screw and slider structure, etc. The insulating plate is made of insulating material and is used to contact the sides 201 of the battery 200, blocking the conductive connection between the drive assembly and the battery 200. The test plate connects the insulating plate and the drive structure. The test plate can detect the leakage current signal of the sides 201 of the battery 200 through the insulating plate and transmit it to an external detection circuit or control system.

[0065] Clamped by the two side testing mechanisms 30, the bottom testing mechanism 50 moves vertically in the Z direction to hold the bottom surface of the battery 200 and test the leakage current value of the bottom surface. The bottom testing mechanism 50 may include a lifting drive assembly and a test tray. The lifting drive assembly may be a cylinder or an electric cylinder, and the test tray is installed at the output end of the lifting drive assembly. The test tray is connected to an external detection system via wires. During detection, the lifting drive assembly drives the test tray to move upward, making it in close contact with the bottom surface of the battery 200, thereby completing the detection of the bottom surface leakage current.

[0066] During the actual testing process, the feeding mechanism 20 transports the battery 200 to the testing station along the first horizontal direction X. Two side testing mechanisms 30 move towards each other along the first horizontal direction X, clamping the front and rear sides of the battery 200. The bottom testing mechanism 50 moves upward along the vertical direction Z, abutting against the bottom surface of the battery 200. By detecting the leakage current value of each surface of the battery 200, it is determined whether the insulation performance of the corresponding surface of the battery 200 meets the standards.

[0067] In the battery insulation testing device 100 provided in this application, by setting two side testing mechanisms 30 and a bottom testing mechanism 50, the insulation performance of the front, rear, and bottom surfaces of the battery 200 can be tested simultaneously. This achieves insulation testing of multiple surfaces of the battery 200, avoiding safety hazards caused by undetected insulation failures on the bottom or sides. The side testing mechanisms 30 move in opposite directions to ensure contact between the side testing mechanisms 30 and the surface of the battery 200, ensuring tight and stable contact and improving the accuracy of the test.

[0068] Optionally, the battery insulation testing device 100 may further include two large-area testing mechanisms 40. The two large-area testing mechanisms 40 are mounted on the insulating frame 10 and located above the feeding mechanism 20. The two large-area testing mechanisms 40 move towards each other along a second horizontal direction Y to clamp the left and right large-area surfaces of the battery 200 and test the leakage current value of the two large-area surfaces 202 of the battery 200. The second horizontal direction Y is perpendicular to the first horizontal direction X, that is, perpendicular to the conveying direction of the battery 200.

[0069] The structure of the large-area testing mechanism 40 is similar to that of the side testing mechanism 30. It may include a driving component, an insulating plate, and a large-area testing electrode plate. The power source and transmission method of its driving component can be the same as those of the side testing mechanism 30. The size of the large-area testing electrode plate is designed according to the area of ​​the left and right large surfaces of the battery 200 to ensure that it can fully cover the large surface 202 area of ​​the battery 200 and achieve effective testing of the insulation performance of the large surface 202.

[0070] By setting up two side testing mechanisms 30, two large surface testing mechanisms 40, and a bottom testing mechanism 50, the insulation performance of the front side, rear side, left large surface, right large surface, and bottom surface of the battery 200 can be tested simultaneously, further improving the accuracy of the insulation test of the battery 200.

[0071] Please see Figures 2-4 ,in Figure 3 This is a schematic diagram of the bottom surface testing mechanism 50 provided in the embodiments of this application. Figure 4 This is a partial structural schematic diagram of the battery insulation testing device 100 provided in an embodiment of this application. Optionally, the bottom surface testing mechanism 50 includes a first measuring component 51 and a first driving component 52 connected to the first measuring component 51. The first measuring component 51 includes a bottom insulating plate 511, a bottom insulating pad 512, and a bottom test plate 513 stacked together. The bottom insulating plate 511 is used to abut against the bottom surface of the battery 200. The bottom test plate 513 is connected to the first driving component 52, and the first driving component 52 is used to drive the bottom test plate 513 to move in the vertical direction Z.

[0072] The first drive component 52 provides the vertical Z-direction motion power, while the first measuring component 51 directly contacts the bottom surface of the battery 200 and completes the leakage current signal acquisition, thereby realizing the insulation detection of the bottom surface of the battery 200.

[0073] The bottom insulating plate 511, bottom insulating pad 512, and bottom test plate 513 are stacked together, and the layers are connected by bolts or adhesives to prevent displacement of any plate from affecting the detection accuracy. The bottom insulating plate 511 is located at the top of the first measuring component 51 and is in direct contact with the bottom surface of the battery 200. The bottom insulating plate 511 is made of high-strength, wear-resistant insulating material. By closely fitting the bottom detection area of ​​the battery 200, it can also isolate the conductive connection between the bottom surface of the battery 200 and the first driving component 52, preventing the first driving component 52 from interfering with the leakage current detection of the bottom surface of the battery 200.

[0074] A bottom insulating pad 512 is disposed between the bottom insulating plate 511 and the bottom test plate 513. When the first driving assembly 52 drives the first measuring assembly 51 to abut against the bottom surface of the battery 200, the bottom insulating pad 512 can absorb the impact force generated by the rigid contact, preventing the bottom surface of the battery 200 from being damaged by excessive force or the casing from being deformed. The bottom insulating pad 512 can also further block the conductive connection between the bottom surface of the battery 200 and the first driving assembly 52.

[0075] The bottom test board 513 has a pre-set wire interface on its surface, which is connected to an external detection circuit, such as a leakage current tester, through a shielded wire. During testing, the collected leakage current signal can be transmitted to the leakage current tester.

[0076] After the feeding mechanism 20 delivers the battery 200 to the testing station and positions it, the first drive assembly 52 starts, driving the bottom test plate 513 to move upward in the vertical direction Z, thereby causing the bottom insulating pad 512 and the bottom insulating plate 511 to rise synchronously until the bottom insulating plate 511 is in close contact with the bottom surface of the battery 200. The external detection circuit establishes a detection loop through the bottom test plate 513, collects the leakage current signal between the bottom surface of the battery 200 and the bottom insulating plate 511, and completes the bottom surface insulation performance test. After the leakage current test of the bottom surface of the battery 200 is completed, the first drive assembly 52 drives the first measuring assembly 51 to reset downward in the vertical direction Z, so that the first measuring assembly 51 is disengaged from the bottom surface of the battery 200.

[0077] Please see Figures 2-4Optionally, the first drive assembly 52 includes a first cylinder 521, a first guide rail 522, a first slider 523, and a bottom lifting plate 524. The fixed end of the first cylinder 521 is connected to the insulating frame 10, and the movable end of the first cylinder 521 is connected to the bottom surface of the bottom test plate 513. The first guide rail 522 is connected to the insulating frame 10, and the first slider 523 is slidably connected to the first guide rail 522. The bottom lifting plate 524 is connected to the first slider 523 and the bottom test plate 513. The first cylinder 521 drives the bottom test plate 513 to move relative to the first guide rail 522 along the vertical direction Z.

[0078] Specifically, the fixed end of the first cylinder 521 can be connected to the insulating frame 10 by bolts or welding to ensure that its position remains stable during driving. The movable end of the first cylinder 521 can be connected to the bottom surface of the bottom test plate 513 by a push block.

[0079] The first guide rail 522 is vertically arranged and mounted on the insulating frame 10 by bolts or welding. The length of the first guide rail 522 can be designed according to factors such as the lifting stroke of the first measuring component 51 and the height of the battery 200. The first slider 523 is adapted to the first guide rail 522 to form a sliding fit structure. Through the cooperation of the first guide rail 522 and the first slider 523, the bottom test plate 513 is restricted to moving only in the vertical Z direction, avoiding horizontal offset or wobbling, and ensuring that the bottom insulating plate 511 can accurately abut against the bottom surface of the battery 200.

[0080] The bottom lifting plate 524 can be a long strip of metal plate. There are two bottom lifting plates 524, which are installed on both sides of the bottom test plate 513. One end of each bottom lifting plate 524 is fixedly connected to the bottom test plate 513 by bolts, and the other end is rigidly connected to the first slider 523.

[0081] When the first measuring component 51 needs to be raised, the movable end of the first cylinder 521 extends, pushing the bottom test plate 513 upward. At this time, the bottom lifting plates 524 on both sides of the bottom test plate 513 drive the first slider 523 to slide upward along the first guide rail 522. Through the cooperation of the first guide rail 522 and the first slider 523, the bottom test plate 513 is restricted to move only in the vertical Z direction, avoiding horizontal deviation or wobbling, and ensuring that the bottom insulating plate 511 can accurately contact the bottom surface of the battery 200. After the test is completed, the movable end of the first cylinder 521 retracts, pulling the bottom test plate 513 downward. The bottom lifting plates 524 drive the first slider 523 to descend synchronously along the first guide rail 522 until the first measuring component 51 returns to its initial position.

[0082] Please see Figure 2 and Figure 4Optionally, the battery insulation testing device 100 further includes a conveying mechanism 60, which includes a second drive assembly 61, a base plate 62, and side plates 63. The second drive assembly 61 is mounted on the insulating frame 10, and the base plate 62 is connected to the second drive assembly 61. The base plate 62 has a fixed end of the first cylinder 521. The side plates 63 are located on both sides of the base plate 62 along the first horizontal direction X, and the side plates 63 have first guide rails 522. The second drive assembly 61 is used to drive the base plate 62 to move relative to the insulating frame 10 along the second horizontal direction Y, so as to move the bottom surface testing mechanism 50. The second horizontal direction Y is perpendicular to the first horizontal direction X.

[0083] The conveying mechanism 60 enables the bottom surface testing mechanism 50 to have adjustment capability in the second horizontal direction Y, which can adapt to the dimensional differences in the width direction of batteries 200 of different specifications. Alternatively, it can compensate for slight positional deviations that occur during the conveying process of the feeding mechanism 20, ensuring that the first measuring component 51 of the bottom surface testing mechanism 50 can accurately abut against the preset testing area on the bottom surface of the battery 200 during testing, avoiding inaccurate test results due to misalignment.

[0084] The second drive component 61 is installed on the insulating frame 10 as a power source. It can be a servo motor with a synchronous belt, a lead screw slider or a cylinder, etc. Its output end is fixedly connected to the base plate 62, and can drive the base plate 62 to move the entire bottom surface test mechanism 50 along the second horizontal direction Y.

[0085] For example, the second drive assembly 61 may include a conveyor motor, a conveyor screw, a conveyor screw flange, a conveyor nut connecting plate, a guide rail mounting plate, and a conveyor guide rail. The conveyor guide rail is fixed to the guide rail mounting plate, and the base plate 62 is fixed to the slider of the conveyor guide rail. The output shaft of the conveyor motor is connected to the conveyor screw, the conveyor screw flange is mounted on the conveyor screw, the conveyor screw flange is fixed to the conveyor nut connecting plate, and the conveyor nut connecting plate is fixed on the base plate 62 on the side opposite to the first cylinder 521.

[0086] The base plate 62 serves as a load-bearing component, and the fixed end of the first cylinder 521 is fixedly provided on its surface, so that the first drive component 52 of the bottom surface testing mechanism 50 forms a stable connection with the base plate 62, ensuring that the bottom surface testing mechanism 50 will not undergo relative displacement when it moves with the base plate 62.

[0087] There are two side plates 63, which are erected on both sides of the base plate 62 along the first horizontal direction X. A first guide rail 522 is fixedly installed on the side of the side plate facing the bottom test mechanism 50. When the base plate 62 moves, the side plate 63 will drive the first guide rail 522 to move synchronously, so that the other components of the bottom test mechanism 50 can move together with the first guide rail 522 along the second horizontal direction Y.

[0088] During actual testing, when the feeding mechanism 20 delivers the battery 200 to the preset testing area but the bottom testing mechanism 50 is not directly below the battery 200, the second drive assembly 61 is activated. This drives the base plate 62 to move along the second horizontal direction Y, causing the first cylinder 521 fixed on the base plate 62, the side plate 63, and the first guide rail 522 on the side plate 63 to move synchronously. This causes the entire bottom testing mechanism 50 to move until the bottom insulating plate 511 is aligned with the bottom surface of the battery 200 in the vertical direction Z. After alignment, the second drive assembly 61 stops, and the bottom testing mechanism 50 rises vertically in the Z direction under the drive of the first drive assembly 52. ​​This allows the first measuring assembly 51 to perform leakage current detection on the bottom surface of the battery 200. After the detection is complete, the second drive assembly 61 drives the bottom testing mechanism 50 to reset, preparing for the next test.

[0089] Please see Figure 5 , Figure 5 This is a schematic diagram of the side testing mechanism 30 provided in an embodiment of this application. Optionally, the side testing mechanism 30 includes a second measuring component 31, a third driving component 32, and a height adjustment component 33. The second measuring component 31 includes a side insulating plate 311, a side insulating pad 312, and a side testing plate 313 stacked together. The side insulating plate 311 is used to abut against the side 201 of the battery 200.

[0090] The third drive assembly 32 is connected to the side test plate 313, and drives the side test plate 313 to move along the first horizontal direction X toward the battery 200. The height adjustment assembly 33 is connected to the insulating frame 10 and the third drive assembly 32, and drives the third drive assembly 32 to move the side test plate 313 along the vertical direction Z.

[0091] With the cooperation of the second measuring component 31, the third driving component 32 and the height adjustment component 33, insulation detection of the side 201 of the battery 200 is achieved. In particular, for batteries 200 with different height specifications, the effectiveness of the detection can be ensured by adjusting the height.

[0092] Specifically, the second measuring component 31 adopts a stacked structure similar to the first measuring component 51 of the bottom surface test mechanism 50, including a side insulating plate 311, a side insulating pad 312 and a side test plate 313 stacked from the side near the battery 200 to the side away from the battery 200. The layers can be fixed as a whole by bolts or adhesives.

[0093] The side insulating plate 311 directly contacts the front or rear side of the battery 200 and is made of insulating material to avoid interfering with leakage current detection. The shape of the side insulating plate 311 is adapted to the side 201 of the battery 200 to ensure that it covers the preset detection area when in contact. The side insulating pad 312 is located between the side insulating plate 311 and the side test plate 313, serving as a buffer and reinforcing insulation. The side test plate 313 is a conductive metal plate that can be connected to an external detection circuit via wires to detect the leakage current value of the side 201 of the battery 200.

[0094] The third drive assembly 32 is connected to the side of the side test plate 313 away from the side insulating pad 312. The power output direction of the third drive assembly 32 is set along the first horizontal direction X. The third drive assembly 32 may include a connecting plate 321, a side clamping cylinder 322, and a mounting base 323. The connecting plate 321 is located between the side test plate 313 and the mounting base 323. The mounting base 323 is connected to the connecting plate 321 and is used to mount the side clamping cylinder 322. The side clamping cylinder 322 passes through the connecting plate 321 and is connected to the side test plate 313. The side clamping cylinder 322 drives the side test plate 313 to move along the first horizontal direction X toward or away from the battery 200, thereby driving the entire second measuring assembly 31 to clamp or release the side 201 of the battery 200.

[0095] In some embodiments, the side testing mechanism 30 may also include a pressure sensor for detecting the pressure between the side insulating plate 311 and the side 201 of the battery 200, ensuring that the contact pressure between the side insulating plate 311 and the side 201 of the battery 200 is within a suitable range, ensuring tight contact for accurate detection, and avoiding excessive pressure that could cause deformation of the battery 200 or damage to the coating.

[0096] The height adjustment assembly 33 may include a height adjustment motor 331, a motor mounting base 332, a transmission rod 333, and a height adjustment guide rail 334. The motor mounting base 332 can be connected to the side mounting plate of the insulating frame 10. The height adjustment motor 331 is mounted on the motor mounting base 332. The output shaft of the height adjustment motor 331 is connected to the transmission rod 333. The transmission rod 333 is connected to the height adjustment guide rail 334 through a flange or the like. The height adjustment guide rail 334 is fixed to the side mounting plate of the insulating frame 10. A slider is provided on the height adjustment guide rail 334. The height adjustment guide rail 334 is connected to the connecting plate 321 through the slider.

[0097] After the height adjustment motor 331 is started, its output shaft drives the transmission rod 333 to rotate, which in turn drives the slider on the height adjustment guide rail 334 to move vertically in the Z direction via the flange. This, in turn, causes the connecting plate 321 and the side test plate 313 to move synchronously to the appropriate height. Subsequently, the side clamping cylinder 322 drives the side test plate 313 to move toward the battery 200, so that the side insulating plate 311 abuts against the side 201 of the battery 200.

[0098] When the height of the battery 200 being tested changes, the height of the second measuring component 31 is adjusted by the height adjustment component 33. This ensures that the contact area between the side insulating plate 311 and the side 201 of the battery 200 is always within the effective detection range of the side 201 of the battery 200. This avoids the side insulating plate 311 only contacting the edge of the side 201 of the battery 200 or even failing to contact the side 201 of the battery 200 due to changes in the height of the battery 200. This improves the adaptability of the side testing mechanism 30 to batteries 200 of different sizes, ensuring the accuracy and reliability of the test results.

[0099] Please see Figure 2 and Figure 6 , Figure 6 This is a schematic diagram of the probe mechanism 70 provided in an embodiment of this application. Optionally, the battery insulation detection device 100 includes a probe mechanism 70, which includes a first mounting plate 71, a fourth driving assembly 72, a test probe 73, and a first adjustment plate 74.

[0100] A first mounting plate 71 is disposed on the insulating frame 10 and located above the battery 200. A fourth drive assembly 72 is disposed on the first mounting plate 71. A test probe 73 is connected to the fourth drive assembly 72, which drives the test probe 73 to move along the vertical direction Z toward the battery 200. One end of a first adjusting plate 74 is slidably connected to the first mounting plate 71 along the second horizontal direction Y, and the other end is connected to the fourth drive assembly 72.

[0101] The probe mechanism 70 is used to apply a detection voltage to the battery 200, providing a power circuit for leakage current detection. The first mounting plate 71, serving as the basic support component of the probe mechanism 70, is mounted on the intermediate reference plate of the insulating frame 10 and located above the battery 200 transport path. The surface of the first mounting plate 71 is arranged along the second horizontal direction Y, providing a stable mounting reference for other components. The first mounting plate 71 is made of insulating material to avoid forming unnecessary conductive paths with the test probe 73.

[0102] The fourth drive assembly 72 can be a cylinder, electric cylinder, or small servo motor, etc., with its output direction set in the vertical direction Z to drive the test probe 73 to move up and down in the vertical direction Z. The test probe 73 is made of a metal material with excellent conductivity. One end of the test probe 73 is connected to the output end of the fourth drive assembly 72 through a connecting plate, and the other end is a needle tip structure used to contact the tab or conductive area on the top surface of the battery 200 to apply a detection voltage.

[0103] One end of the first adjusting plate 74 is slidably connected to the first mounting plate 71 along the second horizontal direction Y via a slide rail slider structure, such as a slide rail connection. The other end is connected to the fourth driving component 72. By pushing the first adjusting plate 74 to slide along the slide rail, the fourth driving component 72 and the test probe 73 can be moved along the second horizontal direction Y. The test probe 73 can be adjusted and aligned according to the position of the tabs of different specifications of the battery 200, ensuring that the probe tip can accurately contact the tabs or the preset conductive area, avoiding poor power supply or contact with non-conductive areas due to positional deviation, which would affect the accuracy of leakage current detection.

[0104] During the testing process, after the battery 200 is transported to the testing station and clamped and positioned by various testing mechanisms, the first adjusting plate 74 first adjusts the test probe 73 in the second horizontal direction Y to the position corresponding to the battery 200's tab. Then, the fourth driving component 72 drives the test probe 73 to move downwards in the vertical direction Z, so that the tip of the probe contacts the tab or conductive area on the top surface of the battery 200 and applies a preset detection voltage. At this time, the test probe 73, the internal electrode of the battery 200, the side test plate 313, the large surface test plate, the bottom test plate 513, and the external detection circuit form a complete circuit, and each test plate can detect the leakage current value of the corresponding surface. After the test is completed, the fourth driving component 72 drives the test probe 73 to reset upwards, disengaging from the battery 200.

[0105] Please see Figure 4 , Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the structure of the stop mechanism 91 provided in the embodiments of this application. Figure 8 This is a schematic diagram of the lifting mechanism 92 provided in an embodiment of this application. Optionally, the battery insulation detection device 100 includes a stop mechanism 91 and a lifting mechanism 92. The stop mechanism 91 includes a mounting frame 911, a fifth drive assembly 912, and a stop block 913. The mounting frame 911 is located on the side of the conveying mechanism 60 opposite to the battery 200, the fifth drive assembly 912 is located on the mounting frame 911, and the stop block 913 is connected to the fifth drive assembly 912. The fifth drive assembly 912 drives the stop block 913 to move in the vertical direction Z, and the stop block 913 protrudes from the feeding mechanism 20 to stop the battery 200 from moving in the first horizontal direction X.

[0106] The lifting mechanism 92 includes a lifting block 921 and a sixth drive assembly 922 connected to the lifting block 921. The sixth drive assembly 922 is connected to the insulating frame 10 and drives the lifting block 921 to move vertically in the Z direction. The lifting block 921 protrudes from the feeding mechanism 20 and lifts the battery 200, causing the battery 200 to move away from the feeding mechanism 20. Through the cooperation of the stop mechanism 91 and the lifting mechanism 92, the battery 200 can be precisely limited to a preset position during the testing process, while also being free from contact interference from the feeding mechanism 20, ensuring the stability of the testing process and the accuracy of the testing results.

[0107] Specifically, the fifth drive assembly 912 is mounted on the mounting bracket 911 and can be a cylinder or an electromagnetic push rod, with its output direction set in the vertical direction Z. The stop block 913 is connected to the movable end of the fifth drive assembly 912. The stop block 913 can be made of wear-resistant insulating material to avoid conductive interference when in contact with the battery 200.

[0108] The feeding mechanism 20 uses a roller conveyor to transport the battery 200, with a gap 21 between the rollers. When the feeding mechanism 20 transports the battery 200 to the vicinity of the inspection station, the fifth drive assembly 912 drives the stop block 913 to move upward in the vertical direction Z, causing the stop block 913 to extend out of the gap 21 in the feeding mechanism 20. When the battery 200 continues to move in the first horizontal direction X until it contacts the stop block 913, the stop block 913 will block the further movement of the battery 200, thus initially confining the battery 200 within the inspection area. After inspection, the fifth drive assembly 912 drives the stop block 913 to return downward, retracting it below the conveying surface of the feeding mechanism 20, releasing the obstruction of the battery 200, and facilitating the transport of the battery 200 to the next process.

[0109] The sixth drive assembly 922 can be connected to the insulating frame 10 via the base plate 62 of the conveying mechanism 60, and is located below the feeding mechanism 20. The sixth drive assembly 922 can be constructed using a cylinder, electric cylinder, or servo motor. A lifting block 921 is connected to the movable end of the sixth drive assembly 922. The top surface of the lifting block 921 is designed to fit the bottom surface of the battery 200 and is made of insulating material. There can be one or more lifting blocks 921.

[0110] Specifically, the sixth drive assembly 922 includes a second cylinder 9221, a second guide rail 9222, a second slider, and a lifting frame 9223. The fixed end of the second cylinder 9221 is connected to the insulating frame 10 via a base plate 62, and the movable end of the second cylinder 9221 is connected to the lifting frame 9223. The second guide rail 9222 is connected to the insulating frame 10 via a side plate 63, and the second slider is slidably connected to the second guide rail 9222. The lifting frame 9223 is arranged along the first horizontal direction X, and both ends of the lifting frame 9223 are connected to the second guide rail 9222 via sliders. The end of the lifting frame 9223 facing away from the second cylinder 9221 is connected to the lifting block 921. The second cylinder 9221 drives the lifting frame 9223 to move the lifting block 921 relative to the second guide rail 9222 in the vertical direction Z.

[0111] After the stop block 913 completes the initial stop on the battery 200, the sixth drive assembly 922 drives the lifting block 921 to move upward in the vertical direction Z, so that the lifting block 921 extends out of the gap 21 of the feeding mechanism 20 and contacts the bottom surface of the battery 200 to lift the battery 200 upward, so that the battery 200 is away from the conveying surface of the feeding mechanism 20 and is no longer in contact with the feeding mechanism 20. This eliminates the supporting effect of the feeding mechanism 20 on the battery 200 and avoids the metal parts or conductive areas of the feeding mechanism 20 from interfering with the insulation detection of the bottom surface of the battery 200. At the same time, the support of the lifting block 921 keeps the battery 200 in a stable posture, so that the side test mechanism 30 and the large surface test mechanism 40 can better clamp the corresponding surfaces of the battery 200.

[0112] Please see Figure 9 , Figure 9 This is a schematic diagram of the push rod mechanism 80 provided in an embodiment of this application. Optionally, the battery insulation detection device 100 further includes a push rod mechanism 80, which includes a second mounting plate 81, a seventh drive assembly 82, and a push rod 83.

[0113] The second mounting plate 81 is disposed on the insulating frame 10 and located above the battery 200. The seventh drive assembly 82 is connected to the second mounting plate 81, and the push rod 83 is connected to the seventh drive assembly 82. The seventh drive assembly 82 drives the push rod 83 to move vertically in the Z direction toward the battery 200, thereby moving the battery 200 toward the feeding mechanism 20.

[0114] After each testing unit completes the leakage current test of the battery 200, the side testing unit 30 and the large surface testing unit 40 need to release the clamp on the battery 200. Due to the slight pressure residue or local adsorption between the coating and the test plate that may exist during the testing process, the battery 200 may still stick to the test plate and cannot fall back to the feeding unit 20.

[0115] The push rod mechanism 80 is used to remove the battery 200 from the clamping state of the side testing mechanism 30 or the large-area testing mechanism 40 and push it onto the feeding mechanism 20 after the insulation test is completed. This solves the problem of battery 200 getting stuck due to excessive clamping or sticking, ensuring that the battery 200 can smoothly enter the next conveying stage after the test is completed, and avoiding affecting the continuous operation of the production line.

[0116] The second mounting plate 81 is fixed on the insulating frame 10 and located above the battery 200 delivery path. Similar to the first mounting plate 71, it is made of insulating material, which provides a stable mounting reference for the seventh drive assembly 82 and avoids unnecessary electrical connections with other conductive parts.

[0117] The seventh drive assembly 82 is connected to the second mounting plate 81 and can be a linear drive component such as a cylinder or electric cylinder. Its output direction is set in the vertical direction Z, which can drive the push rod 83 to move up and down in the vertical direction Z. The push rod 83 is made of insulating material. One end of the push rod 83 is connected to the movable end of the seventh drive assembly 82, and the other end is set towards the top surface of the battery 200. It can be designed as a flat structure adapted to the top surface of the battery 200 to increase the contact area with the battery 200 and avoid damage to the battery 200 when pushing.

[0118] After each testing unit completes the leakage current detection of battery 200, the seventh drive assembly 82 is activated, driving push rod 83 to move downwards in the vertical direction Z until the bottom of push rod 83 contacts the top surface of battery 200 and applies a downward thrust, causing battery 200 to move towards the feeding mechanism 20, so that battery 200 is separated from the side testing mechanism 30 and the large surface testing mechanism 40 and falls smoothly back onto the conveying surface of the feeding mechanism 20. After battery 200 is completely and securely placed, the seventh drive assembly 82 drives push rod 83 to reset upwards, disengaging from contact with battery 200.

[0119] Optionally, the push rod mechanism 80 includes a second adjusting plate 84, one end of which is slidably connected to the second mounting plate 81 along the second horizontal direction Y, and the other end is connected to the seventh drive assembly 82.

[0120] One end of the second adjusting plate 84 can be slidably connected to the second mounting plate 81 along the second horizontal direction Y via a slide rail slider structure, while the other end is fixedly connected to the seventh drive assembly 82. The seventh drive assembly 82 and the push rod 83 can move as a whole along the second horizontal direction Y to accommodate batteries 200 of different widths. For example, when the detected size of the battery 200 changes in the second horizontal direction Y, the position of the push rod 83 in the second horizontal direction Y can be adjusted by sliding the second adjusting plate 84, ensuring that the push rod 83 can accurately act on the preset pushing point on the top surface of the battery 200, and avoiding the push rod 83 being pushed off-center or unable to contact the battery 200 due to the battery 200 becoming wider or narrower.

[0121] Understandably, to improve testing efficiency, the feeding mechanism 20 can be equipped with two conveying stations spaced Y-interval along the second horizontal direction, enabling parallel testing at two stations. Each battery 200 at each station is independently equipped with a complete testing mechanism, namely two side testing mechanisms 30, two large-surface testing mechanisms 40, and one bottom testing mechanism 50. Correspondingly, a stop mechanism 91, a lifting mechanism 92, a probe mechanism 70, and a push rod mechanism 80 are also provided to ensure that the two batteries 200 can complete the testing simultaneously.

[0122] This application also provides a coating machine, which includes a coating device and a battery insulation testing device 100 as described in any of the above embodiments. The battery insulation testing device 100 tests the battery after it has been coated by the coating device. Since the coating machine of this application uses the battery insulation testing device 100, it at least has the beneficial effects of the battery insulation testing device 100, which will not be repeated here.

[0123] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A battery insulation detection device characterized by comprising: include: Insulating frame; A feeding mechanism is provided on the insulating frame, and the feeding mechanism is used to transport batteries along a first horizontal direction; Two side testing mechanisms are disposed on the insulating frame and located above the feeding mechanism. The two side testing mechanisms move towards each other along the first horizontal direction to clamp the front and rear sides of the battery on the feeding mechanism and test the leakage current value of the two sides of the battery. as well as A bottom surface testing mechanism is disposed on the insulating frame. The bottom surface testing mechanism moves vertically to support the bottom surface of the battery and tests the leakage current value of the bottom surface of the battery.

2. The battery insulation detection device according to claim 1, characterized by The bottom surface testing mechanism includes a first measuring component and a first driving component connected to the first measuring component; The first measuring component includes a bottom insulating plate, a bottom insulating pad, and a bottom test plate stacked together. The bottom insulating plate is used to abut against the bottom surface of the battery. The bottom test plate is connected to the first driving component, which is used to drive the bottom test plate to move along the vertical direction.

3. The battery insulation detection device according to claim 2, characterized by The first drive assembly includes a first cylinder, a first guide rail, a first slider, and a bottom lifting plate; The fixed end of the first cylinder is connected to the insulating frame, and the movable end of the first cylinder is connected to the bottom surface of the bottom test plate; the first guide rail is connected to the insulating frame, the first slider is slidably connected to the first guide rail, and the bottom lifting plate is connected to the first slider and the bottom test plate; the first cylinder drives the bottom test plate to move vertically relative to the first guide rail.

4. The battery insulation detection device according to claim 3, characterized by The battery insulation detection device also includes a conveying mechanism, which includes a second drive assembly, a base plate, and a side plate. The second drive assembly is mounted on the insulating frame, the base plate is connected to the second drive assembly, and the base plate is provided with the fixed end of the first cylinder; the side plates are located on both sides of the base plate along the first horizontal direction, and the side plates are provided with the first guide rail; the second drive assembly is used to drive the base plate to move relative to the insulating frame along the second horizontal direction, so as to drive the bottom surface testing mechanism to move, and the second horizontal direction is perpendicular to the first horizontal direction.

5. The battery insulation detection device according to any one of claims 1 to 4, characterized by, The side testing mechanism includes a second measuring component, a third driving component, and a height adjustment component; The second measuring component includes a side insulating plate, a side insulating pad, and a side test plate stacked together, wherein the side insulating plate is used to abut against the side of the battery; the third driving component is connected to the side test plate, and the third driving component drives the side test plate to move along the first horizontal direction toward the battery; the height adjustment component is connected to the insulating frame and the third driving component, and the height adjustment component drives the third driving component to move the side test plate along the vertical direction.

6. The battery insulation detection device according to any one of claims 1 to 4, characterized by The battery insulation detection device further includes a push rod mechanism, which includes a second mounting plate, a seventh drive assembly, and a push rod. The second mounting plate is disposed on the insulating frame and located above the battery; the seventh drive assembly is connected to the second mounting plate, the push rod is connected to the seventh drive assembly, and the seventh drive assembly drives the push rod to move along the vertical direction toward the battery, thereby moving the battery toward the feeding mechanism.

7. The battery insulation testing device according to claim 6, characterized in that, The push rod mechanism includes a second adjusting plate, one end of which is slidably connected to the second mounting plate along a second horizontal direction, and the other end is connected to the seventh drive assembly.

8. The battery insulation testing device according to any one of claims 1-4, characterized in that, The battery insulation testing device includes a probe mechanism, which includes a first mounting plate, a fourth driving component, a test probe, and a first adjustment plate. The first mounting plate is disposed on the insulating frame and located above the battery; the fourth driving assembly is disposed on the first mounting plate; the test probe is connected to the fourth driving assembly, and the fourth driving assembly drives the test probe to move vertically toward the direction closer to the battery; one end of the first adjusting plate is slidably connected to the first mounting plate along the second horizontal direction, and the other end is connected to the fourth driving assembly.

9. The battery insulation testing device according to any one of claims 1-4, characterized in that, The battery insulation detection device includes a stop mechanism and a lifting mechanism; The stopping mechanism includes a mounting frame, a fifth drive assembly, and a stop block. The mounting frame is disposed on the side of the feeding mechanism away from the battery. The fifth drive assembly is disposed on the mounting frame. The stop block is connected to the fifth drive assembly. The fifth drive assembly drives the stop block to move along the vertical direction. The stop block protrudes from the feeding mechanism to stop the battery from moving along the first horizontal direction. The lifting mechanism includes a lifting block and a sixth drive assembly connected to the lifting block. The sixth drive assembly is connected to the insulating frame and drives the lifting block to move along the vertical direction. The lifting block protrudes from the feeding mechanism and lifts the battery, causing the battery to move away from the feeding mechanism.

10. A coating machine, characterized in that, include: Encapsulation device; The battery insulation testing device according to any one of claims 1-9, wherein the battery insulation testing device tests the battery after it has been coated by the coating device.

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