A probe testing device for battery cells

Abstract

The present invention discloses a probe testing device for battery cells, which relates to the technical field of battery cell testing, comprises a limit conveying mechanism and a dust cover installed on the top of the limit conveying mechanism, wherein a testing mechanism is arranged on the top of the limit conveying mechanism, and a probe detection device is arranged inside the testing mechanism, wherein the limit conveying mechanism comprises a testing table, supporting legs are fixedly installed around the bottom of the testing table, a conveying bracket is symmetrically installed on the top of the testing table, the dust cover is fixedly installed on the top of the conveying bracket, and a conveying motor is fixedly installed on one side of the front of the conveying bracket, and utilizing the characteristics of the sliding connection between the limit slide and the limit slide rail, and utilizing the characteristics of the sliding connection between the limit rollers on both sides of the limit plate and the inclined slide and the horizontal slide inside the limit baffle, the limit baffle can be relatively moved and at the same time descend along the inclined slide to the top of the conveyor belt, and the battery cell can be clamped and fixed under the limiting action of the horizontal slide.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell testing, and in particular to a probe testing device for a battery cell. Background Art

[0002] Existing technology usually uses a probe test device to measure battery efficiency, that is, multiple rows of test probe rows. The number of test probe rows corresponds to the number of battery main grids. The test of battery cells requires very high probe position accuracy. The probes must be aligned up and down to press the main grid lines. This requires that the position of the probe rows must be strictly controlled when replacing the probe rows or switching between different numbers of probe rows.

[0003] Announcement No. CN203572939U discloses a probe test device for battery cells. Since the vacuum adsorption table is abandoned, the position of the pressure strip can be easily checked and adjusted to align the battery cell electrodes and the electrode probes and maintain good contact, which is more reliable than the contact by vacuum adsorption. In addition, when testing, the back of the battery cell has the thrust of multiple electrode probes on the lower pressure strip, and the front of the battery cell will use the upper pressure component at the corresponding position to provide a reverse thrust to the battery cell, which can avoid the uneven force on the outside of the battery cell causing internal stress and reduce damage to the battery cell. At the same time, this structure is completely matched with the existing battery cell batch test and sorting equipment, which can greatly improve the speed and reliability of the test and reduce the difficulty of the test. However, the patent still has the following problems in actual use:

[0004] Although the probe testing device for the battery cell is convenient for checking and adjusting the position of the pressure strip so that the battery cell electrode and the electrode probe are aligned, when testing the battery cell, the battery cell needs to be placed on a test bench. A certain amount of dust will adhere to the surface of the battery cell and the surface of the electrode probe. No relevant protective structure is set, resulting in the electrode probe and the battery cell being affected by the dust, causing deviations in the monitoring data and affecting the accuracy of the test results. At the same time, it is impossible to quickly align battery cells of different sizes, affecting the efficiency of battery cell testing.

[0005] Therefore, a probe testing device for a battery cell is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a probe testing device for a battery cell to solve the problem that the probe testing device for a battery cell proposed in the above background technology is convenient for checking and adjusting the position of the pressure strip so that the battery cell electrode and the electrode probe are aligned, but when testing the battery cell, the battery cell needs to be placed on a test bench, and a certain amount of dust will adhere to the surface of the battery cell and the surface of the electrode probe. No relevant protective structure is set, which causes the electrode probe and the battery cell to be affected by the dust, resulting in deviations in the monitoring data, affecting the accuracy of the test results, and at the same time, it is impossible to quickly align battery cells of different sizes, affecting the efficiency of battery cell testing.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: A probe testing device for a battery cell, comprising a position limiting conveying mechanism, and a dust cover installed on the top of the position limiting conveying mechanism;

[0008] A testing mechanism is arranged on the top of the dust cover, and a probe detection device is arranged inside the testing mechanism;

[0009] The position-limiting conveying mechanism comprises a test bench, support legs are fixedly installed around the bottom of the test bench, a conveying bracket is symmetrically installed on the top of the test bench, and the dust cover is fixedly installed on the top of the conveying bracket;

[0010] A conveying motor is fixedly installed on one side of the front of the conveying bracket, an output end of the conveying motor is fixedly connected to a first sprocket transmission assembly, and one side of the first sprocket transmission assembly is symmetrically connected to a conveying roller;

[0011] The outer side of the conveying roller is connected to a conveying belt in a transmission manner, a test hole is provided at the center of the dust cover, and first sliding rods are fixedly installed around the dust cover near the test hole;

[0012] The outer side of the first sliding rod is slidably connected to a first sliding sleeve, a first spring is fixedly installed on one side of the first sliding sleeve, a connecting rod is fixedly installed on the bottom of the two first sliding sleeves, and gear boxes are symmetrically installed on both sides of the dust cover near the test hole, and a rotating gear is rotatably connected inside the gear box, and the top of the rotating gear is meshedly connected to a top rack.

[0013] Preferably, the top rack is fixedly mounted on the bottom of the connecting rod, the bottom of the rotating gear is meshedly connected with a bottom rack, the end of the bottom rack is fixedly connected to a limiting spring, the end of the limiting spring away from the bottom rack is fixedly connected to a limiting bracket, a limiting groove is provided in the middle of the limiting bracket, and the internal sliding connection of the limiting groove is connected to a limiting rail.

[0014] Preferably, a limit plate is fixedly installed on the outer side of the limit slide rail, limit rollers are symmetrically installed on both sides of the limit plate, limit baffles are symmetrically installed on the front and rear sides of the dust cover close to the test hole, inclined slide grooves are symmetrically opened on both sides of the interior of the limit baffle, horizontal slide grooves are opened at the ends of the two inclined slide grooves, the limit rollers are respectively slidably connected to the inclined slide grooves and the horizontal slide grooves, a bottom protective plate is fixedly installed on the top of the first sliding sleeve, and a bottom push block is fixedly installed on the top of the bottom protective plate.

[0015] Preferably, the testing mechanism includes a lifting support rod, the lifting support rod is fixedly installed on the top of the conveying bracket, a lifting top plate is fixedly installed on the top of the lifting support rod, a motor cover is fixedly installed on the top side of the lifting top plate, a lifting motor is fixedly installed on the inner side of the motor cover, the output end of the lifting motor is fixedly connected to a second sprocket transmission assembly, and the bottom of the second sprocket transmission assembly is symmetrically connected to a lifting threaded rod.

[0016] Preferably, the outer sides of the two lifting threaded rods are threadedly connected with lifting threaded sleeves, a lifting plate is fixedly installed between the two lifting threaded sleeves, a lifting sliding sleeve is symmetrically installed on the side of the lifting plate away from the lifting threaded sleeve, the lifting sliding rod is slidably connected to the inside of the lifting sliding sleeve, support springs are fixedly installed around the bottom of the lifting plate, a protective bracket is fixedly installed on the bottom of the support spring, and a lifting groove is opened in the middle of the protective bracket.

[0017] Preferably, the protective bracket is fixedly installed with a second sliding rod around the four sides close to the lifting slot, the outer side of the second sliding rod is slidably connected to a second sliding sleeve, the top of the second sliding sleeve is rotatably connected to a connecting rotating rod, the connecting rotating rod is rotatably connected to the lifting plate, a second spring is fixedly installed on one side of the second sliding sleeve, a top protective plate is fixedly installed on the bottom of the second sliding sleeve, and a top pushing block is fixedly installed on the bottom of the top protective plate.

[0018] Preferably, a translation bracket is fixedly installed at the bottom center position of the lifting plate, a translation motor is fixedly installed at one end of the translation bracket, a translation threaded rod is fixedly connected to the output end of the translation motor, a translation threaded sleeve is threadedly connected to the outer side of the translation threaded rod, an electric lifting rod is fixedly installed at the bottom of the translation threaded sleeve, and a clamping bracket is fixedly installed at the bottom of the electric lifting rod.

[0019] Preferably, a clamping motor is fixedly installed on the inner side of the top of the clamping bracket, the output end of the clamping motor is fixedly connected to a bevel gear transmission assembly, the bevel gear transmission assembly is fixedly connected to a clamping threaded rod on all sides, the outer side of the clamping threaded rod is threadedly connected to a clamping threaded sleeve, a clamping arm is fixedly installed on the bottom of the clamping threaded sleeve, and the probe detection device is engaged and connected with the clamping arm.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the probe testing device for battery cells utilizes the characteristics of the sliding connection between the limiting slide and the limiting slide rail, and utilizes the characteristics of the sliding connection between the limiting rollers on both sides of the limiting plate and the inclined slide and horizontal slide inside the limiting baffle, so that the limiting baffle can move relatively and descend to the top of the conveyor belt along the inclined slide. Under the limiting action of the horizontal slide, the battery cell is clamped and fixed, and the clamping motor inside the clamping bracket drives the bevel gear transmission assembly and the clamping threaded rod to rotate, so that the clamping thread sleeve drives the clamping arm to move relatively, thereby clamping and fixing the probe detection device, and the corresponding probe detection device can be selected according to the size of the battery cell to test the battery cell, thereby improving the efficiency of the battery cell test. The specific contents are as follows:

[0021] 1. By setting the limit conveying mechanism, not only can the dust cover be used to protect the battery cells to be tested and the battery cells that have been tested, but also to prevent dust from adhering to the surface of the battery cells, thereby affecting the accuracy of the test data, but also the conveying motor drives the first sprocket transmission assembly and the conveying roller to rotate, and utilizes the characteristics of the transmission connection between the conveying roller and the conveyor belt to realize the conveying function of the battery cells, thereby realizing uninterrupted battery cell probe testing. When testing, the battery cells are moved to the bottom of the test hole, and the top protective plate and the top push block are used to squeeze the bottom protective plate and the bottom push block, so that the bottom protective plate moves relatively, thereby opening the test hole, so that the bottom protective plate drives the first sliding sleeve to slide on the outside of the first sliding rod while pulling The first spring, and the connecting rod at the bottom of the first sliding sleeve drive the top rack to move, and utilize the meshing connection between the top rack, the rotating gear and the top rack to make the bottom rack drive the limit spring and the limit bracket to approach each other, and utilize the sliding connection between the limit slide and the limit slide rail, and utilize the sliding connection between the limit rollers on both sides of the limit plate and the inclined slide and horizontal slide inside the limit baffle, so that the limit baffle can move relatively and descend to the top of the conveyor belt along the inclined slide. Under the limiting action of the horizontal slide, the battery cell is clamped and fixed, so that the battery cell is calibrated, and the probe detection equipment on the top can be aligned to improve the test efficiency, and it can adapt to battery cells of different sizes;

[0022] 2. By setting up the test mechanism, not only can the lifting motor be used to drive the second sprocket transmission assembly and the lifting threaded rod to rotate, so that the lifting threaded sleeve and the lifting sliding sleeve drive the lifting plate to move up and down, but also the supporting spring and the connecting rotating rod can be used to lower the protective bracket, and at the same time, the second sliding sleeve can slide on the outside of the second sliding rod and pull the second spring, so that the second sliding sleeve can drive the top protective plate and the top push block to move relative to each other, so that the lifting slot inside the protective bracket can be opened, and at the same time, the bottom protective plate can be opened by using the characteristics of the fitting connection between the bottom push block and the top push block, and the electric lifting rod can be used to drive the probe detection device to move up and down, so as to test the battery cell, and the translation motor can be used to drive the translation threaded rod to rotate, so that the translation threaded sleeve drives the electric lifting rod probe detection device to move horizontally, and the position of the probe detection device can be adjusted to facilitate the alignment of the battery cell and the probe detection device, and the clamping motor inside the clamping bracket drives the bevel gear transmission assembly and the clamping threaded rod to rotate, so that the clamping threaded sleeve drives the clamping arm to move relative to each other, so as to clamp and fix the probe detection device, and the corresponding probe detection device can be selected according to the size of the battery cell, and the battery cell test can be performed, thereby improving the efficiency of the battery cell test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the cross section of the position-limiting conveying mechanism in the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom protection plate and the bottom push block in the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the first sliding sleeve and the connecting rod in the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the gear box cross section in the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the limiting plate in the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the testing mechanism in the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the lifting plate in the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cross section of the protective bracket in the present invention;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the cross section of the translation support in the present invention;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the clamping arm in the present invention.

[0034] In the figure: 1, limit conveying mechanism; 101, test bench; 102, support leg; 103, conveying bracket; 104, dust cover; 105, conveying motor; 106, first sprocket transmission assembly; 107, conveying roller; 108, conveying belt; 109, test hole; 110, first sliding rod; 111, first sliding sleeve; 112, first spring; 113, connecting rod; 114, gear box; 115, rotating gear; 116, top rack; 117, bottom rack; 118, limit spring; 119, limit bracket; 120, limit slide; 121, limit slide rail; 122, limit plate; 123, limit roller; 124, limit baffle; 125, inclined slide; 126, horizontal slide; 127, bottom protective plate; 128, bottom push block; 2, test mechanism; 201, lifting support rod; 202, Lifting top plate; 203, motor cover; 204, lifting motor; 205, second sprocket transmission assembly; 206, lifting threaded rod; 207, lifting threaded sleeve; 208, lifting plate; 209, lifting sliding sleeve; 210, lifting sliding rod; 211, supporting spring; 212, protective bracket; 213, lifting slot; 214, second sliding rod; 215, second sliding sleeve; 216, connecting rotating rod; 217, second spring; 218, top protective plate; 219, top push block; 220, translation bracket; 221, translation motor; 222, translation threaded rod; 223, translation threaded sleeve; 224, electric lifting rod; 225, clamping bracket; 226, clamping motor; 227, bevel gear transmission assembly; 228, clamping threaded rod; 229, clamping threaded sleeve; 230, clamping arm; 231, probe detection equipment. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 11The present invention provides a technical solution: a probe test device for a battery cell, comprising a limit conveying mechanism 1, and a dust cover 104 installed on the top of the limit conveying mechanism 1, a test mechanism 2 is arranged on the top of the limit conveying mechanism 1, and a probe detection device 231 is arranged inside the test mechanism 2, the limit conveying mechanism 1 comprises a test table 101, support legs 102 are fixedly installed around the bottom of the test table 101, a conveying bracket 103 is symmetrically installed on the top of the test table 101, the dust cover 104 is fixedly installed on the top of the conveying bracket 103, a conveying motor 105 is fixedly installed on the front side of the conveying bracket 103, and the conveying motor 105 is fixedly installed on the front side of the conveying bracket 103. The output end of the machine 105 is fixedly connected with a first sprocket transmission assembly 106, one side of the first sprocket transmission assembly 106 is symmetrically connected with a conveying roller 107, the outer side of the conveying roller 107 is transmission-connected with a conveyor belt 108, and the dust cover 104 is used to protect the battery cells to be tested and the tested battery cells to avoid a certain amount of dust adhering to the surface of the battery cells, thereby affecting the accuracy of the test data. The first sprocket transmission assembly 106 and the conveying roller 107 are driven to rotate by the conveying motor 105, and the transmission connection between the conveying roller 107 and the conveyor belt 108 is utilized to realize the conveying function of the battery cells, thereby realizing uninterrupted battery cell probe testing.

[0037] A test hole 109 is provided at the center of the dust cover 104. A first sliding rod 110 is fixedly installed around the dust cover 104 near the test hole 109. A first sliding sleeve 111 is slidably connected to the outer side of the first sliding rod 110. A first spring 112 is fixedly installed on one side of the first sliding sleeve 111. A connecting rod 113 is fixedly installed on the bottom of the two first sliding sleeves 111. Gear boxes 114 are symmetrically installed on both sides of the dust cover 104 near the test hole 109. A rotating gear 115 is rotatably connected inside the gear box 114. The top of the rotating gear 115 is meshedly connected to a top rack 116. The top rack 116 is fixedly installed at the bottom of the connecting rod 113. The bottom of the rotating gear 115 is meshedly connected to a bottom rack 117. The end of the bottom rack 117 is fixedly connected to a limit spring 113. 18. One end of the limit spring 118 away from the bottom rack 117 is fixedly connected to the limit bracket 119. When testing, the battery cell is moved to the bottom of the test hole 109, and the top protective plate 218 and the top pushing block 219 are used to squeeze the bottom protective plate 127 and the bottom pushing block 128, so that the bottom protective plate 127 moves relatively, thereby opening the test hole 109, so that the bottom protective plate 127 drives the first sliding sleeve 111 to slide on the outside of the first sliding rod 110 while pulling the first spring 112, and at the same time, the connecting rod 113 at the bottom of the first sliding sleeve 111 drives the top rack 116 to move, and the meshing connection between the top rack 116, the rotating gear 115 and the top rack 116 is used to make the bottom rack 117 drive the limit spring 118 and the limit bracket 119 to approach each other.

[0038] A limiting slide groove 120 is provided in the middle of the limiting bracket 119, and the limiting slide groove 120 is internally slidably connected to a limiting slide rail 121, and a limiting plate 122 is fixedly installed on the outer side of the limiting slide rail 121, and limiting rollers 123 are symmetrically installed on both sides of the limiting plate 122. A limiting baffle plate 124 is symmetrically installed on the front and rear sides of the dust cover 104 near the test hole 109, and inclined slide grooves 125 are symmetrically provided on both sides of the limiting baffle plate 124. Horizontal slide grooves 126 are provided at the ends of the two inclined slide grooves 125. The limiting rollers 123 are slidably connected to the inclined slide grooves 125 and the horizontal slide grooves 126 respectively, and a bottom protective plate 127 is fixedly installed on the top of the first sliding sleeve 111. A bottom pushing block 128 is fixedly installed on the top of the bottom protective plate 127. By utilizing the characteristics of the sliding connection between the limiting slide groove 120 and the limiting slide rail 121, and the characteristics of the sliding connection between the limiting rollers 123 on both sides of the limiting plate 122 and the inclined slide groove 125 and the horizontal slide groove 126 inside the limiting baffle 124, the limiting baffle 124 can move relatively and descend along the inclined slide groove 125 to the top of the conveyor belt 108. Under the limiting action of the horizontal slide groove 126, the battery cell is clamped and fixed, thereby calibrating the battery cell and aligning the probe detection device 231 on the top, thereby improving the test efficiency and adapting to battery cells of different sizes.

[0039] The testing mechanism 2 includes a lifting support rod 201, which is fixedly installed on the top of the conveying bracket 103. A lifting top plate 202 is fixedly installed on the top of the lifting support rod 201. A motor cover 203 is fixedly installed on one side of the top of the lifting top plate 202. A lifting motor 204 is fixedly installed on one side of the inner side of the motor cover 203. The output end of the lifting motor 204 is fixedly connected to a second sprocket transmission assembly 205. The bottom of the second sprocket transmission assembly 205 is symmetrically connected to lifting threaded rods 206. The outer sides of the two lifting threaded rods 206 are both threadedly connected to the lifting A lifting plate 208 is fixedly installed between the two lifting thread sleeves 207, a lifting sliding sleeve 209 is symmetrically installed on one side of the lifting plate 208 away from the lifting thread sleeve 207, a lifting sliding rod 210 is slidably connected inside the lifting sliding sleeve 209, a supporting spring 211 is fixedly installed around the bottom of the lifting plate 208, a protective bracket 212 is fixedly installed at the bottom of the supporting spring 211, a lifting groove 213 is opened in the middle of the protective bracket 212, and a second sliding rod 214 is fixedly installed around the protective bracket 212 near the lifting groove 213 The outer side of the second sliding rod 214 is slidably connected with a second sliding sleeve 215, the top of the second sliding sleeve 215 is rotatably connected with a connecting rotating rod 216, the connecting rotating rod 216 is rotatably connected with the lifting plate 208, a second spring 217 is fixedly installed on one side of the second sliding sleeve 215, a top protective plate 218 is fixedly installed on the bottom of the second sliding sleeve 215, and a top pushing block 219 is fixedly installed on the bottom of the top protective plate 218. The lifting motor 204 drives the second sprocket transmission assembly 205 and the lifting threaded rod 206 to rotate, so that the lifting threaded sleeve 207 The lifting sliding sleeve 209 drives the lifting plate 208 to move up and down, and the supporting spring 211 and the connecting rotating rod 216 are used to lower the protective bracket 212. At the same time, the second sliding sleeve 215 slides on the outside of the second sliding rod 214 and pulls the second spring 217, so that the second sliding sleeve 215 drives the top protective plate 218 and the top pushing block 219 to move relative to each other, and the lifting slot 213 inside the protective bracket 212 can be opened. At the same time, the bottom protective plate 127 is opened by utilizing the characteristics of the fitting connection between the bottom pushing block 128 and the top pushing block 219.

[0040] A translation bracket 220 is fixedly installed at the bottom center position of the lifting plate 208, and a translation motor 221 is fixedly installed at one end of the translation bracket 220. A translation threaded rod 222 is fixedly connected to the output end of the translation motor 221. The outer side of the translation threaded rod 222 is threadedly connected to a translation threaded sleeve 223. An electric lifting rod 224 is fixedly installed at the bottom of the translation threaded sleeve 223. A clamping bracket 225 is fixedly installed at the bottom of the electric lifting rod 224. A clamping motor 226 is fixedly installed on the top inner side of the clamping bracket 225. A bevel gear transmission component 227 is fixedly connected to the output end of the clamping motor 226. A clamping threaded rod 228 is fixedly connected to the surrounding of the bevel gear transmission component 227. The outer side of the clamping threaded rod 228 is threadedly connected to a clamping threaded sleeve 229. A clamping arm 230 is fixedly installed at the bottom of the clamping threaded sleeve 229. The probe The detection device 231 is engaged and connected with the clamping arm 230, and the electric lifting rod 224 is used to drive the probe detection device 231 to rise and fall, so as to test the battery cell. The translation motor 221 drives the translation threaded rod 222 to rotate, so that the translation threaded sleeve 223 drives the electric lifting rod 224 to drive the probe detection device 231 to move horizontally, and the position of the probe detection device 231 can be adjusted to facilitate the alignment of the battery cell and the probe detection device 231. The clamping motor 226 inside the clamping bracket 225 drives the bevel gear transmission assembly 227 and the clamping threaded rod 228 to rotate, so that the clamping threaded sleeve 229 drives the clamping arm 230 to move relatively, so as to clamp and fix the probe detection device 231, and the corresponding probe detection device 231 can be selected according to the size of the battery cell to test the battery cell, thereby improving the efficiency of the battery cell test.

[0041] Working principle: Before using this kind of battery cell probe test device, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11 As shown, first, when testing, the battery cell is placed on the conveyor belt 108, and the conveying motor 105 is started to drive the first sprocket transmission assembly 106 and the conveying roller 107 to rotate. The transmission connection between the conveying roller 107 and the conveyor belt 108 is used to realize the conveying function of the battery cell, and the battery cell is moved to the bottom of the test hole 109. The lifting motor 204 is used to drive the second sprocket transmission assembly 205 and the lifting threaded rod 206 to rotate, so that the lifting threaded sleeve 207 and the lifting sliding sleeve 209 drive the lifting plate 208 to move up and down. While the protective bracket 212 is lowered by the supporting spring 211 and the connecting rotating rod 216, the second sliding sleeve 215 slides on the outer side of the second sliding rod 214 and pulls the second spring 217, so that the second sliding sleeve 215 drives the top protective plate 218 and the top pushing block 219 to move relative to each other, so that the lifting slot 213 inside the protective bracket 212 can be opened, and at the same time, the bottom pushing block 128 and the top pushing block 219 are connected by the fitting connection to open the bottom protective plate 127.

[0042] Secondly, the bottom protection plate 127 drives the first sliding sleeve 111 to slide on the outside of the first sliding rod 110 and pulls the first spring 112 at the same time. At the same time, the connecting rod 113 at the bottom of the first sliding sleeve 111 drives the top rack 116 to move. By utilizing the meshing connection between the top rack 116, the rotating gear 115 and the top rack 116, the bottom rack 117 drives the limit spring 118 and the limit bracket 119 to approach each other. By utilizing the sliding connection between the limit slide groove 120 and the limit slide rail 121, By utilizing the characteristics of the sliding connection between the limiting rollers 123 on both sides of the limiting plate 122 and the inclined slide groove 125 and the horizontal slide groove 126 inside the limiting baffle 124, the limiting baffle 124 can move relatively and descend along the inclined slide groove 125 to the top of the conveyor belt 108. Under the limiting action of the horizontal slide groove 126, the battery cell is clamped and fixed, so that the battery cell can be calibrated and the probe detection device 231 on the top can be aligned, thereby improving the test efficiency and adapting to battery cells of different sizes.

[0043] Finally, the electric lifting rod 224 is used to drive the probe detection device 231 to move up and down, so as to test the battery cell. The translation motor 221 drives the translation threaded rod 222 to rotate, so that the translation threaded sleeve 223 drives the electric lifting rod 224 to move the probe detection device 231 horizontally, and the position of the probe detection device 231 can be adjusted to facilitate the alignment of the battery cell and the probe detection device 231. The clamping motor 226 inside the clamping bracket 225 drives the bevel gear transmission assembly 227 and the clamping threaded rod 228 to rotate, so that the clamping threaded sleeve 229 drives the clamping arm 230 to move relatively, thereby clamping and fixing the probe detection device 231. The corresponding probe detection device 231 can be selected according to the size of the battery cell to test the battery cell, thereby improving the efficiency of the battery cell test.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A probe testing device for a battery cell, comprising a position limiting conveying mechanism (1), and a dust cover (104) installed on the top of the position limiting conveying mechanism (1); A testing mechanism (2) is arranged on the top of the dust cover (104), and a probe detection device (231) is arranged inside the testing mechanism (2); Features: The position-limiting conveying mechanism (1) comprises a test bench (101), support legs (102) are fixedly mounted around the bottom of the test bench (101), a conveying bracket (103) is symmetrically mounted on the top of the test bench (101), and the dust cover (104) is fixedly mounted on the top of the conveying bracket (103); A conveying motor (105) is fixedly mounted on one side of the front face of the conveying bracket (103); an output end of the conveying motor (105) is fixedly connected to a first sprocket transmission assembly (106); and a conveying roller (107) is symmetrically connected to one side of the first sprocket transmission assembly (106); The outer side of the conveying roller (107) is connected to a conveying belt (108) in a transmission manner, a test hole (109) is provided at the center of the dust cover (104), and first sliding rods (110) are fixedly installed around the dust cover (104) near the test hole (109); The outer side of the first sliding rod (110) is slidably connected to a first sliding sleeve (111), one side of the first sliding sleeve (111) is fixedly mounted with a first spring (112), the bottoms of the two first sliding sleeves (111) are fixedly mounted with a connecting rod (113), both sides of the dust cover (104) near the test hole (109) are symmetrically mounted with a gear box (114) front and back, the interior of the gear box (114) is rotatably connected to a rotating gear (115), and the top of the rotating gear (115) is meshedly connected to a top rack (116).

2. A probe testing device for a battery cell according to claim 1, characterized in that: The top rack (116) is fixedly mounted on the bottom of the connecting rod (113); the bottom of the rotating gear (115) is meshedly connected with a bottom rack (117); the end of the bottom rack (117) is fixedly connected to a limiting spring (118); one end of the limiting spring (118) away from the bottom rack (117) is fixedly connected to a limiting bracket (119); a limiting groove (120) is provided in the middle of the limiting bracket (119); the inner part of the limiting groove (120) is slidably connected to a limiting rail (121).

3. A probe testing device for a battery cell according to claim 2, characterized in that: A limiting plate (122) is fixedly installed on the outer side of the limiting slide rail (121), and limiting rollers (123) are symmetrically installed on both sides of the limiting plate (122). Limiting baffles (124) are symmetrically installed on the front and rear sides of the dust cover (104) close to the test hole (109). Inclined sliding grooves (125) are symmetrically opened on both sides of the interior of the limiting baffle (124), and horizontal sliding grooves (126) are opened at the ends of the two inclined sliding grooves (125). The limiting rollers (123) are slidably connected to the inclined sliding grooves (125) and the horizontal sliding grooves (126) respectively. A bottom protective plate (127) is fixedly installed on the top of the first sliding sleeve (111), and a bottom pushing block (128) is fixedly installed on the top of the bottom protective plate (127).

4. The probe testing device for a battery cell according to claim 1, characterized in that: The testing mechanism (2) comprises a lifting support rod (201), wherein the lifting support rod (201) is fixedly mounted on the top of the conveying support (103), a lifting top plate (202) is fixedly mounted on the top of the lifting support rod (201), a motor cover (203) is fixedly mounted on one side of the top of the lifting top plate (202), a lifting motor (204) is fixedly mounted on one side of the interior of the motor cover (203), an output end of the lifting motor (204) is fixedly connected to a second sprocket transmission assembly (205), and a lifting threaded rod (206) is symmetrically connected to the bottom of the second sprocket transmission assembly (205).

5. A probe testing device for a battery cell according to claim 4, characterized in that: The outer sides of the two lifting threaded rods (206) are both threadedly connected with lifting threaded sleeves (207), a lifting plate (208) is fixedly installed between the two lifting threaded sleeves (207), a lifting sliding sleeve (209) is symmetrically installed on the side of the lifting plate (208) away from the lifting threaded sleeve (207), the lifting sliding sleeve (209) is slidably connected with a lifting sliding rod (210) inside, support springs (211) are fixedly installed around the bottom of the lifting plate (208), a protective bracket (212) is fixedly installed at the bottom of the support spring (211), and a lifting groove (213) is opened in the middle of the protective bracket (212).

6. A probe testing device for a battery cell according to claim 5, characterized in that: A second sliding rod (214) is fixedly installed around the protective bracket (212) near the lifting groove (213); a second sliding sleeve (215) is slidably connected to the outer side of the second sliding rod (214); a connecting rotating rod (216) is rotatably connected to the top of the second sliding sleeve (215); the connecting rotating rod (216) is rotatably connected to the lifting plate (208); a second spring (217) is fixedly installed on one side of the second sliding sleeve (215); a top protective plate (218) is fixedly installed at the bottom of the second sliding sleeve (215); and a top pushing block (219) is fixedly installed at the bottom of the top protective plate (218).

7. A probe testing device for a battery cell according to claim 6, characterized in that: A translation bracket (220) is fixedly mounted at the bottom center of the lifting plate (208); a translation motor (221) is fixedly mounted at one end of the translation bracket (220); a translation threaded rod (222) is fixedly connected to the output end of the translation motor (221); a translation threaded sleeve (223) is threadedly connected to the outer side of the translation threaded rod (222); an electric lifting rod (224) is fixedly mounted at the bottom of the translation threaded sleeve (223); and a clamping bracket (225) is fixedly mounted at the bottom of the electric lifting rod (224).

8. The probe testing device for a battery cell according to claim 7, characterized in that: A clamping motor (226) is fixedly installed on the inner side of the top of the clamping bracket (225); the output end of the clamping motor (226) is fixedly connected to a bevel gear transmission assembly (227); the bevel gear transmission assembly (227) is fixedly connected to a clamping threaded rod (228) on all sides; the outer side of the clamping threaded rod (228) is threadedly connected to a clamping threaded sleeve (229); a clamping arm (230) is fixedly installed on the bottom of the clamping threaded sleeve (229); and the probe detection device (231) is snap-fitted and connected to the clamping arm (230).

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