A mechanism and method for detecting the withstand voltage of a cylindrical battery

Abstract

The application discloses a kind of cylindrical battery pressure resistance detection mechanism and method, and the cylindrical battery pressure resistance detection mechanism includes: fixture, fixture is set recess, recess extends along front and back direction, and is configured to be able to accommodate cylindrical battery, and expose the negative pole of cylindrical battery;Test component, test component includes first conductive part and second conductive part, first conductive part is set in recess, for abutting cylindrical surface of cylindrical battery, and second conductive part is used for abutting the negative pole of cylindrical battery;Rotary clamping assembly, rotary clamping assembly is configured to be used for clamping cylindrical battery to be separated from fixture, drive cylindrical battery to rotate around its axis.This application can automatically detect whether the insulating layer of cylindrical battery exists bad, detection efficiency is high, and the cylindrical surface of cylindrical battery can be comprehensively detected, to prevent missed detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cylindrical battery detection, and in particular to a cylindrical battery voltage resistance detection mechanism and method. BACKGROUND

[0002] In the production process of cylindrical batteries, it is necessary to coat the surface of the cylindrical battery with insulating material (such as spraying UV insulating glue). After production, it is necessary to check whether the insulating layer has defects, such as whether there are white spots, breakage, etc. that cause the insulating performance to decrease. There are two existing detection methods, one is manual visual detection, which is inefficient and prone to misjudgment and missed detection; the other is detection by detection equipment, which contacts the negative electrode and the cylindrical surface of the cylindrical battery by two conductive structures respectively, and applies a certain voltage for voltage resistance detection, but this method also cannot guarantee that the cylindrical surface of the cylindrical battery is fully detected, and also has the problem of easy missed detection. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a cylindrical battery voltage resistance detection mechanism that can efficiently and comprehensively detect whether the insulating layer of the cylindrical battery has defects.

[0004] The present application also proposes a cylindrical battery voltage resistance detection method applied to the cylindrical battery voltage resistance detection mechanism.

[0005] According to the cylindrical battery voltage resistance detection mechanism of the first aspect of the present application, it comprises:

[0006] A jig is provided with a recess, the recess extends in the front-rear direction and is configured to accommodate the cylindrical battery, and the negative electrode of the cylindrical battery is exposed;

[0007] A test assembly includes a first conductive portion and a second conductive portion, the first conductive portion is provided in the recess and used to abut the cylindrical surface of the cylindrical battery, and the second conductive portion is used to abut the negative electrode of the cylindrical battery;

[0008] A rotating clamping assembly is configured to clamp the cylindrical battery to the jig and rotate the cylindrical battery around its own axis after being separated from the jig.

[0009] The cylindrical battery voltage resistance detection mechanism according to the present application has at least the following beneficial effects:

[0010] The cylindrical battery voltage resistance detection mechanism of the present embodiment can automatically detect whether the insulating layer of the cylindrical battery has defects, has high detection efficiency, and can comprehensively detect the cylindrical surface of the cylindrical battery to prevent missed detection.

[0011] According to some embodiments of the present application, two jigs are oppositely arranged, and the two jigs are provided with the recesses on the facing sides, and the two jigs are provided with the first conductive parts;

[0012] The two jigs can be opened and closed to clamp or release the cylindrical battery.

[0013] According to some embodiments of the present application, the rotating pair of clamps comprises:

[0014] The first clamping part is provided with a first clamping head on the front and back sides of the jig;

[0015] The first driving part is used to drive the first clamping part to move up and down;

[0016] The second driving part is used to drive the first clamping heads on the two sides to move towards each other to abut against the two ends of the cylindrical battery;

[0017] When the first clamping heads abut against the two ends of the cylindrical battery, the first driving part can drive the first clamping part to move upwards to release the cylindrical battery from the jig.

[0018] According to some embodiments of the present application, the rotating pair of clamps further comprises:

[0019] The third driving part is drivingly connected to the first clamping head on at least one side, and is used to drive the first clamping head to rotate.

[0020] According to some embodiments of the present application, the testing assembly further comprises:

[0021] The fourth driving part is used to drive the second conductive part to move upwards to align with the cylindrical battery on the jig, or to move downwards to avoid the rotating pair of clamps;

[0022] The fifth driving part is used to drive the second conductive part to move forward and backward, so that the second conductive part abuts against the negative electrode of the cylindrical battery or moves away from the cylindrical battery.

[0023] According to some embodiments of the present application, the voltage resistance detection mechanism of the cylindrical battery further comprises:

[0024] The temporary storage rack is used to store the cylindrical batteries;

[0025] The conveying assembly is used to transfer the cylindrical batteries of the temporary storage rack to the jig.

[0026] According to some embodiments of the present application, the temporary rack is provided with a storage groove extending in the front-rear direction, the storage groove is configured to be capable of accommodating the cylindrical battery, and the carrying assembly comprises:

[0027] a conveying part configured to be movable between the temporary rack and the jig;

[0028] a second clamping part connected to the conveying part and provided with a second clamping head on each of the front and rear sides of the temporary rack;

[0029] a sixth driving part for driving the second clamping part to move up and down;

[0030] a seventh driving part for driving the second clamping heads on the front and rear sides of the temporary rack to move towards each other to abut against both ends of the cylindrical battery.

[0031] According to some embodiments of the present application, the voltage-withstanding detection mechanism of the cylindrical battery further comprises:

[0032] a rack provided with a ninth driving part on each of the front and rear sides of the temporary rack, the ninth driving parts on both sides are connected with a fourth base and are capable of driving the fourth base to move between the temporary rack and the jig;

[0033] wherein the carrying assembly and the rotary clamping assembly are both arranged on the fourth bases on both sides.

[0034] According to some embodiments of the present application, the first conductive part comprises:

[0035] a copper block fixed in the recess and having an arc-shaped groove adapted to the cylindrical battery;

[0036] a conductive sponge arranged on the inner wall of the arc-shaped groove for abutting against the cylindrical surface of the cylindrical battery.

[0037] The voltage-withstanding detection method of the cylindrical battery according to the second aspect of the embodiments of the present application is applied to the voltage-withstanding detection mechanism of the cylindrical battery according to the first aspect of the embodiments of the present application and comprises the following steps:

[0038] loading the cylindrical battery onto the jig so that the first conductive part abuts against the cylindrical surface of the cylindrical battery and the second conductive part abuts against the negative electrode of the cylindrical battery;

[0039] applying a set voltage to the first conductive part and the second conductive part to perform voltage-withstanding detection;

[0040] rotating the cylindrical battery by a set angle and then performing voltage-withstanding detection again;

[0041] The previous step is repeated several times.

[0042] Additional aspects and advantages of the present application will be partially given in the following description, partially will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0043] The present application will be further described below in conjunction with the accompanying drawings and embodiments, in which:

[0044] Figure 1 is a structural schematic diagram of a pressure resistance detection mechanism of a cylindrical battery of an embodiment of the present application;

[0045] Figure 2 is a state schematic diagram of a test assembly of an embodiment of the present application when two jigs are opened;

[0046] Figure 3 is a state schematic diagram of two jigs of an embodiment of the present application when the jigs are opened;

[0047] Figure 4 is a cross-sectional schematic diagram of two jigs of an embodiment of the present application when the jigs are opened;

[0048] Figure 5 is a structural schematic diagram of a rotating clamping assembly and a lower jig of an embodiment of the present application;

[0049] Figure 6 is a structural schematic diagram of a carrying assembly and a temporary storage rack of an embodiment of the present application;

[0050] Figure 7 is a connection structural schematic diagram of a rotating clamping assembly and a carrying assembly of an embodiment of the present application;

[0051] Figure 8 is a mounting structural schematic diagram of a second conductive part of an embodiment of the present application.

[0052] Reference signs:

[0053] Cylindrical battery 10;

[0054] Jig 100, pressure sensor 110;

[0055] Test assembly 200, first conductive part 210, arc-shaped groove 211, copper block 212, conductive sponge 213, second conductive part 220, fourth driving part 230, fifth driving part 240, pressure resistance tester 250, mounting part 260, lifting frame 270;

[0056] Rotating clamping assembly 300, first clamping part 310, first clamping head 311, first driving part 320, second driving part 330, third driving part 340, first base 350, first moving frame 360;

[0057] the temporary rack 400, the storage slot 401;

[0058] the carrying assembly 500, the conveying part 510, the second base 511, the second moving rack 512, the second clamping part 520, the second clamping head 521, the sixth driving part 530, the seventh driving part 540;

[0059] the fourth base 600;

[0060] the rack 700, the eighth driving part 710, the third base 720, the ninth driving part 730. DETAILED DESCRIPTION

[0061] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation to the present application.

[0062] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is the orientation or position relationship shown in the drawings for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation to the present application.

[0063] In the description of the present application, multiple refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0064] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0065] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the voltage withstand detection mechanism of the cylindrical battery of an embodiment of the present application includes a jig 100, a test assembly 200, and a rotary clamping assembly 300.

[0066] The jig 100 is provided with a recess extending in the front-rear direction, and the recess is configured to be capable of accommodating the cylindrical battery 10 and exposing the negative electrode of the cylindrical battery 10.

[0067] The test assembly 200 comprises a first conductive part 210 and a second conductive part 220. The first conductive part 210 is arranged in the recess and is used to abut against the cylindrical surface of the cylindrical battery 10. The second conductive part 220 is used to abut against the negative electrode of the cylindrical battery 10. It should be noted that the cylindrical surface of the cylindrical battery 10 is the outer circumferential surface of the insulating layer.

[0068] The rotating clamping assembly 300 is configured to clamp the cylindrical battery 10 to the disengaging jig 100 and drive the cylindrical battery 10 to rotate around its own axis. It should be noted that after the rotating clamping assembly 300 drives the cylindrical battery 10 to rotate around its own axis, the cylindrical battery 10 can be placed back into the jig 100.

[0069] The voltage-withstanding detection mechanism of the cylindrical battery in the embodiment can be used to place the cylindrical battery 10 into the jig 100, abut the first conductive part 210 against the cylindrical surface of the cylindrical battery 10, abut the second conductive part 220 against the negative electrode of the cylindrical battery 10, and then apply a set voltage to the first conductive part 210 and the second conductive part 220 to perform the first voltage-withstanding detection. The voltage-withstanding detection mechanism is used to detect whether there is a defect such as a missing portion in the insulating layer of the cylindrical battery 10 in contact with the first conductive part 210. After the first voltage-withstanding detection, the rotating clamping assembly 300 can be used to clamp the cylindrical battery 10 to the disengaging jig 100, drive the cylindrical battery 10 to rotate around its own axis by a set angle, and then place the cylindrical battery 10 back into the jig 100 to perform the second voltage-withstanding detection. Then, the above steps can be repeated N times as needed to comprehensively detect the cylindrical surface of the cylindrical battery 10 and prevent missing detection. In addition, the voltage-withstanding detection mechanism can automatically detect whether there is a defect in the insulating layer of the cylindrical battery 10 and has high detection efficiency.

[0070] It should be noted that the set voltage is different under different performance requirements. For example, the set voltage can be 400V. In addition, the length of the recess is not less than the length of the cylindrical surface of the cylindrical battery 10. Meanwhile, the number of times of voltage-withstanding detection is determined according to whether each position of the cylindrical surface of the cylindrical battery 10 can be comprehensively detected.

[0071] Referring to Figure 1 In some embodiments of the present application, the test assembly 200 further comprises a voltage-withstanding tester 250. The voltage-withstanding tester 250 is electrically connected to the first conductive part 210 and the second conductive part 220. When the first conductive part 210 abuts against the cylindrical surface of the cylindrical battery 10 and the second conductive part 220 abuts against the negative electrode of the cylindrical battery 10, the voltage-withstanding tester 250 can be used to apply a set voltage. If there is a missing portion in the insulating layer of the cylindrical battery 10, the voltage-withstanding tester 250 will alarm and the insulating performance of the cylindrical battery 10 will be unqualified.

[0072] Referring to Figure 1As shown, in some embodiments of the present application, the voltage withstand detection mechanism of the cylindrical battery further comprises a rack 700, the jig 100, the test assembly 200, and the rotary clamping assembly 300 are all mounted on the rack 700, and the rack 700 provides an installation and support carrier.

[0073] Referring to Figures 1 to 3 As shown, in some embodiments of the present application, two jigs 100 are arranged opposite to each other, and the two jigs 100 are provided with recesses on the opposite sides, and the recesses of the two jigs 100 are both fixedly provided with first conductive parts 210; wherein the two jigs 100 can be opened and closed upward and downward to clamp or release the cylindrical battery 10.

[0074] By arranging two jigs 100, on the one hand, a certain clamping force can be applied to the cylindrical battery 10 to prevent displacement of the cylindrical battery 10 during detection, thereby improving the reliability of detection; on the other hand, the contact area with the cylindrical surface of the cylindrical battery 10 during single detection can be increased, thereby improving the detection efficiency.

[0075] Based on the above embodiment, when detecting the voltage withstand of the cylindrical battery 10, the cylindrical battery 10 can be first placed on the first conductive part 210 on the lower side and the negative electrode of the cylindrical battery 10 is directed to the second conductive part 220, then the two jigs 100 are closed to clamp the cylindrical battery 10, and then the second conductive part 220 abuts against the negative electrode of the cylindrical battery 10, and then the voltage withstand test is performed by using the voltage withstand tester 250 to apply a set voltage, after one detection, the two jigs 100 are released to release the cylindrical battery 10, and then the rotary clamping assembly 300 is used to rotate the cylindrical battery 10 by a certain angle, and then the next voltage withstand detection is performed.

[0076] Referring to Figure 2 and Figure 3 As shown, in some embodiments of the present application, in order to improve the detection efficiency, a plurality of recesses can be arranged side by side on the jig 100 to simultaneously detect a plurality of cylindrical batteries 10, of course, a plurality of first conductive parts 210 and second conductive parts 220 are also correspondingly arranged to adapt to the plurality of cylindrical batteries 10. For example, in some embodiments, four recesses are arranged on one jig 100, and each recess is correspondingly provided with one first conductive part 210, and each pair of first conductive parts 210 arranged opposite to each other is correspondingly provided with one second conductive part 220, and the voltage withstand tester 250 is correspondingly provided with four channels to detect the four cylindrical batteries 10 respectively.

[0077] It should be noted that the opening and closing of the two jigs 100 can be that the lower jig 100 is fixed on the rack 700, and the upper jig 100 is lifted and arranged on the rack 700. Of course, it can also be set in reverse. It should be noted that the lower jig 100 described herein refers to the lower jig 100 of the two jigs 100, and the upper jig 100 refers to the upper jig 100 of the two jigs 100.

[0078] Referring to Figure 3 and Figure 4 As shown in FIGS. 1 and 2, in some embodiments of the present application, the first conductive part 210 includes a copper-inlaid block 212 and a conductive sponge 213. The copper-inlaid block 212 is fixed in the recess of the jig 100 and has an arc-shaped groove 211 adapted to the cylindrical battery. The conductive sponge 213 is arranged on the inner wall of the arc-shaped groove 211 and is used to fit the cylindrical surface of the cylindrical battery 10. By arranging the conductive sponge 213, the cylindrical battery 10 can be prevented from being damaged by clamping.

[0079] Referring to Figure 2 and Figure 8 As shown in FIGS. 1 and 2, in some embodiments of the present application, the second conductive part 220 includes a probe.

[0080] Referring to Figure 2 As shown in FIGS. 1 and 2, in some embodiments of the present application, the lower jig 100 is provided with a pressure sensor 110. The pressure sensor 110 is used to detect the pressing force when the two jigs 100 are folded, so as to prevent the cylindrical battery 10 from being damaged due to excessive pressing force.

[0081] Referring to Figure 2 As shown in FIGS. 1 and 2, in some embodiments of the present application, one of the two jigs 100 is provided with a first positioning part extending upward and downward, and the other is correspondingly provided with a second positioning part. The first positioning part and the second positioning part are in a concave-convex matching structure, which is used to avoid the horizontal relative displacement of the two jigs 100 after the two jigs 100 are folded, so as to ensure the reliability of detection.

[0082] Referring to Figure 1 and Figure 5As shown, in some embodiments of the present application, the rotating clamping assembly 300 comprises a first clamping part 310, a first driving part 320, and a second driving part 330. The first clamping part 310 is provided with a first clamping head 311 rotatably arranged on each of the front and rear sides of the lower jig 100, and the rotation axis of the first clamping head 311 extends in the front-rear direction. The first driving part 320 is used to drive the first clamping part 310 to move up and down. The second driving part 330 is used to drive the first clamping heads 311 on the front and rear sides to move towards each other to abut against the two ends of the cylindrical battery 10. When the first clamping heads 311 on the front and rear sides abut against the two ends of the cylindrical battery 10, the first driving part 320 can drive the first clamping part 310 to move upwards so that the cylindrical battery 10 is separated from the lower jig 100, and then rotating the first clamping head 311 can drive the cylindrical battery 10 to rotate around its own axis.

[0083] When the rotating clamping assembly 300 of the present embodiment is used to rotate the cylindrical battery 10, the first clamping head 311 is first coaxially aligned with the cylindrical battery 10, and then the first clamping heads 311 on the front and rear sides are moved towards each other to clamp the two ends of the cylindrical battery 10. Then the first clamping part 310 is moved upwards to separate the cylindrical battery 10 from the lower jig 100, and then the first clamping head 311 is rotated to drive the cylindrical battery 10 to rotate by a set angle. Finally, the cylindrical battery 10 is placed back into the lower jig 100.

[0084] In the present embodiment, two first clamping parts 310 are provided, which are respectively located on the front and rear sides of the lower jig 100, and each of the two first clamping parts 310 is provided with a first clamping head 311 rotatably arranged thereon. The first driving part 320 and the second driving part 330 are each correspondingly provided with two. Among them, the first clamping head 311 can be provided in a cylindrical shape, and two first clamping heads 311 are provided corresponding to one cylindrical battery 10.

[0085] Referring to Figure 5 As shown, in some embodiments of the present application, the rotating clamping assembly 300 further comprises a third driving part 340, which is drivingly connected to at least one first clamping head 311 on one side and is used to drive the first clamping head 311 to rotate, thereby achieving high automation. It should be noted that the at least one first clamping head 311 described in the present embodiment refers to at least one of the two first clamping heads 311 (front and rear opposite) corresponding to one cylindrical battery 10. Obviously, in order to reduce the use of power elements and thus reduce costs, the third driving part 340 is drivingly connected to one of the two first clamping heads 311 opposite to each other.

[0086] Referring to Figure 1 and Figure 5As shown, in some embodiments of the present application, the rotating and clamping assembly 300 further comprises two first bases 350 and two first moving frames 360; the two first bases 350 are respectively connected to the rack 700 and respectively located at the front and rear sides of the lower jig 100, i.e. respectively corresponding to the first clamping portions 310 at the front and rear sides; the two first moving frames 360 are respectively and forwardly and rearwardly slidingly installed on the two first bases 350, the two second driving portions 330 are respectively arranged on the two first bases 350 and in transmission connection with the first moving frames 360 at the corresponding sides to drive the first moving frames 360 to move forwardly and rearwardly, the two first clamping portions 310 are respectively and upwardly and downwardly slidingly installed on the first moving frames 360 at the corresponding sides, and the two first driving portions 320 are respectively arranged on the two first moving frames 360 and in transmission connection with the first clamping portions 310 at the corresponding sides to drive the first clamping portions 310 to move upwardly and downwardly. Obviously, the second driving portions 330 drive the first moving frames 360 to move forwardly and rearwardly to drive the first clamping portions 310 to move forwardly and rearwardly.

[0087] It should be noted that the first driving portions 320 and the second driving portions 330 can all adopt motor-screw mechanisms. In addition, the first clamping heads 311 can be rotatably arranged on the first clamping portions 310 through bearing assemblies.

[0088] It should be noted that when the jig 100 is provided with a plurality of first conductive portions 210 arranged side by side to detect a plurality of cylindrical batteries 10, the first clamping heads 311 are also provided in plurality. For example, as shown in Figure 6 when four first conductive portions 210 are arranged on one jig 100, four first clamping heads 311 are arranged on each first clamping portion 310. In addition, in order to realize the rotation of the four first clamping heads 311 on one first clamping portion 310, the third driving portions 340 can adopt a combined structure of motor plus synchronous belt and synchronous wheel; wherein one third driving portion 340 can be arranged corresponding to each of the four first clamping heads 311, or one third driving portion 340 can be arranged corresponding to each of two first clamping heads 311 as a group. When two first clamping heads 311 are arranged as a group, the synchronous belt needs to be in meshing with the synchronous wheel at the motor side and the synchronous wheels at the two first clamping heads 311 sides at the same time. Of course, the third driving portions 340 can also adopt other driving structures meeting the requirements.

[0089] Only the adjustment of the first clamping part 310 in the front-rear direction and the vertical direction is described above. In order to enable the first clamping head 311 to be coaxially aligned with the cylindrical battery 10, alignment in the left-right direction is also required. Specifically, there can be two ways. One is that the position of the first clamping part 310 in the left-right direction is fixed, and the position of the first clamping head 311 in the left-right direction is always consistent with that of the first conductive part 210. The other is that the first clamping part 310 also has a degree of freedom in the left-right direction, and a power element is correspondingly provided. For the latter, the first base 350 can be slidably connected to the rack 700 in the left-right direction, and a power element is provided on the rack 700 to drive the first base 350 to move left and right.

[0090] Referring to Figure 1 , Figure 2 and Figure 8 , in some embodiments of the present application, the lower jig 100 is fixed to the rack 700, and the upper jig 100 is provided on the rack 700 in a lifting manner. The rack 700 is provided with an eighth driving part 710 to drive the upper jig 100 to move up and down. The eighth driving part 710 can adopt a motor-screw mechanism. In addition, the test assembly 200 further comprises a mounting part 260, a fourth driving part 230, and a fifth driving part 240.

[0091] The mounting part 260 is movably connected to the rack 700 and located at the rear side of the lower jig 100. The mounting part 260 is used to mount the second conductive part 220 to provide a mounting carrier. The fourth driving part 230 is drivingly connected to the mounting part 260 to drive the mounting part 260 to move up and down, thereby driving the second conductive part 220 to move up and down. The fourth driving part 230 can drive the second conductive part 220 to move upward to be aligned with the cylindrical battery 10 on the lower jig 100, or to move downward to avoid the rotating and clamping assembly 300. The fifth driving part 240 is drivingly connected to the mounting part 260 to drive the mounting part 260 to move forward and backward, thereby driving the second conductive part 220 to move forward and backward, so that the second conductive part 220 abuts against or moves away from the negative electrode of the cylindrical battery 10.

[0092] In use, after the two fixtures 100 are closed to clamp the cylindrical battery 10, the mounting portion 260 is driven upward by the fourth driving portion 230 to align the second conductive portion 220 with the cylindrical battery 10 on the lower fixture 100, and then the mounting portion 260 is driven to move forward and backward by the fifth driving portion 240 to make the second conductive portion 220 abut against the negative electrode of the cylindrical battery 10, and then the voltage resistance detection is performed by using the voltage resistance tester 250; after the detection, the mounting portion 260 is driven to move forward and backward by the fifth driving portion 240 to make the second conductive portion 220 away from the cylindrical battery 10, and then the mounting portion 260 is driven downward by the fourth driving portion 230 to make the second conductive portion 220 avoid the rotating clamping assembly 300, so as to avoid interference with the action of the rotating clamping assembly 300.

[0093] Referring to Figure 8 In some embodiments of the present application, the fourth driving portion 230 and the fifth driving portion 240 can both be air cylinders; the rack 700 is provided with a third base 720, the lower fixture 100 is fixed on the third base 720, the fourth driving portion 230 is fixed on the third base 720, the testing assembly 200 further comprises a lifting frame 270, the lifting frame 270 is connected to the output end of the fourth driving portion 230 and can be lifted under the driving of the fourth driving portion 230, the fifth driving portion 240 is fixed on the lifting frame 270, and the mounting portion 260 is connected to the output end of the fifth driving portion 240 and can move forward and backward under the driving of the fifth driving portion 240.

[0094] Referring to Figure 1 and Figure 6 In some embodiments of the present application, the voltage resistance detection mechanism of the cylindrical battery further comprises a temporary storage rack 400 and a carrying assembly 500; the temporary storage rack 400 is arranged on the rack 700, and the temporary storage rack 400 is used to store the cylindrical battery 10; the carrying assembly 500 is used to transfer the cylindrical battery 10 stored in the temporary storage rack 400 to the lower fixture 100, specifically to the first conductive portion 210 of the lower fixture 100, so that automatic feeding can be performed, and the working efficiency is improved. In addition, by arranging the temporary storage rack 400, the cylindrical battery 10 of the next batch can be placed on the temporary storage rack 400 in advance while the detection of the cylindrical battery 10 of the previous batch is performed, so that the time for subsequent feeding is reduced, and the working efficiency is improved.

[0095] Referring to Figure 1 and Figure 6As shown, in some embodiments of the present application, the temporary storage rack 400 is provided with a storage slot 401 extending in the front-rear direction, the storage slot 401 is configured to be capable of accommodating the cylindrical battery 10, the conveying assembly 500 includes a conveying part 510, a second clamping part 520, a sixth driving part 530, and a seventh driving part 540. The conveying part 510 is configured to be capable of moving left and right between the temporary storage rack 400 and the jig 100; the second clamping part 520 is connected to the conveying part 510, and the second clamping part 520 is provided with a second clamping head 521 on each of the front and rear sides of the temporary storage rack 400; the sixth driving part 530 is used to drive the second clamping part 520 to move up and down; and the seventh driving part 540 is used to drive the second clamping heads 521 on the front and rear sides of the temporary storage rack 400 to move towards each other to abut against both ends of the cylindrical battery 10.

[0096] Specifically, the conveying part 510, the second clamping part 520, the sixth driving part 530, and the seventh driving part 540 are each provided with two, which are respectively located on the front and rear sides of the temporary storage rack 400, and the second clamping head 521 is provided on each of the two second clamping parts 520.

[0097] When the conveying assembly 500 of the present embodiment is used to load, the two sixth driving parts 530 are first used to drive the two second clamping parts 520 to move up and down to align the second clamping heads 521 with the cylindrical batteries 10 on the temporary storage rack 400 in the front-rear direction, and then the two seventh driving parts 540 are used to drive the two second clamping parts 520 to move towards each other in the front-rear direction to clamp both ends of the cylindrical battery 10, and then the two sixth driving parts 530 are used to drive the two second clamping parts 520 to move up and down to make the cylindrical battery 10 disengage from the storage slot 401, and then the two conveying parts 510 are moved to the front and rear sides of the jig 100 on the lower side, and the second clamping part 520 is driven by the sixth driving part 530 and the seventh driving part 540 to place the cylindrical battery 10 on the first conductive part 210, and after the placement is completed, the conveying assembly 500 is reset.

[0098] It should be noted that, in the initial position, the two conveying parts 510 are located on the front and rear sides of the temporary storage rack 400.

[0099] Referring to Figure 1 , Figure 6 and Figure 7As shown, in some embodiments of the present application, the conveying part 510 comprises a second base 511 and a second moving frame 512, the second base 511 is slidably connected to the rack 700, and the rack 700 is provided with a ninth driving part 730 to drive the second base 511 to move left and right; the second moving frame 512 is slidably installed on the second base 511, and the seventh driving part 540 is arranged on the second base 511 and is in transmission connection with the second moving frame 512 to drive the second moving frame 512 to move forward and backward; the second clamping part 520 is slidably installed on the second moving frame 512, and the sixth driving part 530 is arranged on the second moving frame 512 and is in transmission connection with the second clamping part 520 to drive the second clamping part 520 to move up and down. Obviously, the seventh driving part 540 drives the second moving frame 512 to move forward and backward, so as to drive the second clamping part 520 to move forward and backward.

[0100] Specifically, the rack 700 is provided with a ninth driving part 730 on the front and back of the temporary storage rack 400, respectively, to correspond to two conveying parts 510 respectively.

[0101] It is conceivable that the number of cylindrical batteries 10 that can be stored on the temporary storage rack 400 can be consistent with the number of cylindrical batteries 10 that can be detected on the jig 100. In addition, a second cylindrical clamping head 521 can be arranged on the second clamping part 520, and the number of the second clamping head 521 is the same as the number of the first clamping head 311.

[0102] Referring to Figure 1 and Figure 7 As shown, in some embodiments of the present application, the ninth driving part 730 on the front and back of the temporary storage rack 400 is connected with a fourth base 600, and the ninth driving part can drive the fourth base 600 to move left and right between the temporary storage rack 400 and the jig 100, wherein the carrying assembly 500 is arranged on the fourth base 600 on the front and back, and the rotating and clamping assembly 300 is arranged on the fourth base 600 on the front and back; Specifically, the first base 350 and the second base 511 on the front side are fixed on the fourth base 600 on the front side, and the first base 350 and the second base 511 on the rear side are fixed on the fourth base 600 on the rear side.

[0103] By adopting the above arrangement, only the ninth driving part 730 on both sides is required to drive the corresponding fourth base 600 to move synchronously left and right, so as to realize the left and right synchronous movement of the carrying assembly 500 and the rotating clamping assembly 300. The advantage of this is that when the N (N is greater than 1) batches of cylindrical batteries 10 are detected, the previous batch of cylindrical batteries 10 on the jig 100 can be unloaded by the rotating clamping assembly 300 while the cylindrical batteries 10 on the temporary storage rack 400 are fed to the lower jig 100 by the carrying assembly 500. Only a device for receiving the cylindrical batteries 10 after detection is required to be arranged on the side of the jig 100 away from the temporary storage rack 400.

[0104] It is conceivable that the ninth driving part 730 can adopt a moving module.

[0105] The application also proposes a cylindrical battery pressure resistance detection method, which is applied to the cylindrical battery pressure resistance detection mechanism of the above-mentioned embodiments, and includes the following steps:

[0106] The cylindrical battery 10 is fed to the jig 100, so that the first conductive part 210 abuts against the cylindrical surface of the cylindrical battery 10, and the second conductive part 220 abuts against the negative electrode of the cylindrical battery 10;

[0107] A set voltage is applied to the first conductive part 210 and the second conductive part 220 for pressure resistance detection;

[0108] After the cylindrical battery 10 is rotated by a set angle, the pressure resistance detection is performed again;

[0109] The above step is repeated several times.

[0110] By adopting the above method, the cylindrical surface of the cylindrical battery 10 can be comprehensively detected to prevent missed detection.

[0111] The steps of the cylindrical battery pressure resistance detection method of one specific embodiment of the cylindrical battery pressure resistance detection mechanism according to the above-mentioned first aspect embodiment are described as follows, which include:

[0112] S1, feeding the cylindrical battery 10 to the first conductive part 210 of the lower jig 100, and making the negative electrode of the cylindrical battery 10 face the second conductive part 220;

[0113] S2, folding the two jigs 100 upwards and downwards to make the first conductive part 210 press tightly against the cylindrical surface of the cylindrical battery 10;

[0114] S3, making the second conductive part 220 abut against the negative electrode of the cylindrical battery 10, and performing the first pressure resistance detection by using the pressure resistance tester 250;

[0115] S4, open the two jigs 100 upward and downward, adjust the second conductive part 220 to a position avoiding the moving path of the rotary clamping assembly 300, then use the rotary clamping assembly 300 to clamp the two ends of the cylindrical battery 10 in sequence, drive the cylindrical battery 10 to move upward by a certain distance, drive the cylindrical battery 10 to rotate around its axis by a certain angle, and then place the cylindrical battery 10 back on the first conductive part 210 of the lower jig 100;

[0116] S5, fold the two jigs 100 upward and downward, then make the second conductive part 220 abut against the negative electrode of the cylindrical battery 10, and then use the withstand voltage tester 250 to perform the second withstand voltage detection.

[0117] In step S1, the carrying assembly 500 can be used to load the cylindrical batteries 10 stored on the temporary storage rack 400 onto the first conductive part 210 of the lower jig 100; when loading the Nth (N is greater than 1) batch of cylindrical batteries 10, the carrying assembly 500 is used to load the cylindrical batteries 10 on the temporary storage rack 400 onto the lower jig 100, and at the same time, the rotary clamping assembly 300 is used to unload the previous batch of cylindrical batteries 10.

[0118] In step S3, the first withstand voltage detection by the withstand voltage tester 250 is specifically as follows: the withstand voltage tester 250 applies a certain pressure (for example, 400V) and detects for a certain time (for example, 2 seconds), if there is a problem of leakage, the point voltage of the leakage will be conducted, and the withstand voltage tester 250 will issue an alarm. In addition, the second withstand voltage detection by the withstand voltage tester 250 in step S5 is the same as the first withstand voltage detection.

[0119] In step S4, the angle can be 90 degrees.

[0120] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in the present specification.

[0121] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A withstand voltage testing mechanism for a cylindrical battery, characterized in that, Comprise: A jig, the jig is provided with a recess, the recess extends along the front and back direction, and is configured to be able to accommodate a cylindrical battery, and expose the negative electrode of the cylindrical battery; A test assembly, the test assembly comprises a first conductive part and a second conductive part, the first conductive part is provided in the recess, used for abutting the cylindrical surface of the cylindrical battery, the second conductive part is used for abutting the negative electrode of the cylindrical battery; A rotating clamp assembly, the rotating clamp assembly is configured to clamp the cylindrical battery to drive the cylindrical battery to rotate around its own axis after being separated from the jig; The rotating clamp assembly comprises: A first clamping part, the first clamping part is rotatably provided with a first clamping head on the front and back sides of the jig respectively; A first driving part, the first driving part is used to drive the first clamping part to move up and down; A second driving part, the second driving part is used to drive the first clamping heads on both sides to move towards each other to abut the two ends of the cylindrical battery; A third driving part, the third driving part is drivingly connected to the first clamping head on at least one side, used to drive the first clamping head to rotate; Wherein, when the first clamping head abuts the two ends of the cylindrical battery, the first driving part can drive the first clamping part to move upward, so that the cylindrical battery is separated from the jig; The test assembly further comprises: A fourth driving part, the fourth driving part is used to drive the second conductive part to move upward to align with the cylindrical battery on the jig, or to move downward to avoid the rotating clamp assembly; A fifth driving part, the fifth driving part is used to drive the second conductive part to move forward and backward, so that the second conductive part abuts the negative electrode of the cylindrical battery or moves away from the cylindrical battery.

2. The pressure resistance detection mechanism for a cylindrical battery according to claim 1, wherein The jig is oppositely provided with two, the recess is provided on the facing side of the two jigs, and the first conductive part is provided on the two jigs; Wherein, the two jigs can be opened and closed upward and downward to clamp or release the cylindrical battery.

3. The cylindrical battery pressure resistance detection mechanism according to claim 1, wherein The cylindrical battery withstand voltage detection mechanism further comprises: A temporary storage rack, the temporary storage rack is used to store the cylindrical battery; A conveying assembly, the conveying assembly is used to transfer the cylindrical battery of the temporary storage rack to the jig.

4. The cylindrical battery pressure resistance detection mechanism according to claim 3, wherein The temporary storage rack is provided with a storage slot extending along the front and back direction, the storage slot is configured to be able to accommodate the cylindrical battery, and the conveying assembly comprises: A conveying part, the conveying part is configured to move between the temporary storage rack and the jig; A second clamping part, the second clamping part is connected to the conveying part, and is provided with a second clamping head on the front and back sides of the temporary storage rack respectively; A sixth driving part, the sixth driving part is used to drive the second clamping part to move up and down; A seventh driving part, the seventh driving part is used to drive the second clamping heads on the front and back sides of the temporary storage rack to move towards each other to abut the two ends of the cylindrical battery.

5. The cylindrical battery pressure resistance detection mechanism according to claim 4, wherein The cylindrical battery withstand voltage detection mechanism further comprises: A rack, the rack is provided with a ninth driving part on the front and back sides of the temporary storage rack respectively, the ninth driving parts on both sides are connected with a fourth base, and can drive the fourth base to move between the temporary storage rack and the jig; The carrying assembly and the rotating clamping assembly are arranged on the fourth bases on the two sides.

6. The cylindrical battery pressure resistance detection mechanism according to claim 1, wherein The first conductive part comprises: A copper block is fixed in the recess and has an arc-shaped groove adapted to the cylindrical battery; A conductive sponge is arranged on the inner wall of the arc-shaped groove and is used to be in contact with the cylindrical surface of the cylindrical battery.

7. A method for detecting the withstand voltage of a cylindrical battery, applied to the withstand voltage detection mechanism of any one of claims 1 to 6, characterized by, The method comprises the following steps: The cylindrical battery is loaded into the jig, so that the first conductive part is in contact with the cylindrical surface of the cylindrical battery, and the second conductive part is in contact with the negative electrode of the cylindrical battery; A set voltage is applied to the first conductive part and the second conductive part for voltage resistance detection; After the cylindrical battery is rotated by a set angle, the voltage resistance detection is performed again; The previous step is repeated several times.

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