Battery core detection device

Abstract

The present invention belongs to the technical field of battery detection, and specifically is a battery core detection device, comprising a bottom plate; a base is fixedly connected to the top surface of the bottom plate; a rotating seat is rotatably connected to the top surface of the base; a pair of conveying plates are installed on the top surface of the rotating seat; a conveying trough is provided on the surface of the side where the two conveying plates are close to each other; the top and bottom surfaces of the inner wall of the conveying trough are rotatably connected to a plurality of uniformly arranged conveying rollers, and the battery cell is repeatedly charged and discharged by a detection component, and the operation is continued for at least 7 days. During this period, the detection component monitors the change in the capacity of the battery cell, and finally the discharge rate of the battery cell is calculated by an external microcomputer, thereby realizing real-time detection of the battery cell voltage and completing sampling detection of the battery cell, which is convenient for users to understand the yield rate of the battery cell in real time during production, and is convenient for users to understand the average quality level of the battery cell, thereby facilitating users to adjust production details according to product quality.

Description

Technical Field

[0001] The invention belongs to the technical field of battery detection, in particular to a battery core detection device. Background Art

[0002] The battery core is the basic component of the battery, usually referring to a single battery unit. It can be a lithium-ion battery, a nickel-metal hydride battery, a lead-acid battery and other types of batteries. The battery cell can be used alone or combined into a battery pack to provide greater power. Therefore, during the battery assembly process, various parameters of the battery cell need to be tested to ensure the quality of the final assembled battery.

[0003] The existing technology also proposes some detection schemes for battery cell detection. For example, a patent application with publication number CN114397605A discloses an online battery cell detection device, which includes a transmission mechanism, a battery cell slot, a first detection port, a first detection piece, a detection block, a second detection port and a second detection piece. The battery cell is detected by contacting the first detection piece and the second detection piece with the positive and negative poles of the battery cell.

[0004] In the prior art, after production, battery cells generally need to be tested on the conveyor line to ensure that parameters such as the voltage of the battery cells are normal. However, in order to ensure the final product quality of the battery cells, parameters such as the battery cell discharge rate, which require long-term monitoring, also need to be tested.

[0005] To this end, the present invention provides a battery core detection device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a battery core detection device described in the present invention includes a bottom plate; the top surface of the bottom plate is fixedly connected to a base; the top surface of the base is rotatably connected to a rotating seat; a pair of conveying plates are installed on the top surface of the rotating seat; a conveying trough is opened on the surface of the side where the two conveying plates are close to each other; the top and bottom surfaces of the inner wall of the conveying trough are rotatably connected to a plurality of evenly arranged conveying rollers, and the conveying rollers are connected by chains; the conveying rollers are driven by a driving assembly; the top surface of the rotating seat is fixedly connected to a voltage detection assembly between the two conveying plates; the voltage detection assembly is used to detect the voltage of the battery cell; a collection assembly is installed on one side of the base; a detection box is installed on the top of the collection assembly; the collection assembly is used to collect the battery cells to be detected; a temperature control unit is installed in the inner wall of the detection box; the temperature control unit is used to heat the interior of the detection box; a detection assembly is installed inside the detection box; the detection assembly is used to charge and discharge the battery cell and detect the amount of electricity in the battery cell.

[0008] During operation, after the production of the battery cells is completed, the battery cells need to be tested to ensure that the quality of the battery cells meets the standards. For this purpose, an embodiment of the present invention can be used. First, the implementation of the present invention needs to be installed between two conveyor lines. The produced battery cells pass through the conveying device at the conveyor line to convey the battery cells between the two conveyor plates, and both sides of the battery cells are located in the conveying grooves on the surface of the conveyor plates. Then the rotating rollers in the conveyor grooves are started to convey the battery cells to the voltage detection component, and the voltage detection component detects the voltage of the battery cells. When the battery cell voltage is detected to be abnormal, the rotating seat on the top surface of the base will rotate, thereby driving the conveyor plate to rotate together. At this time, the conveying direction of the conveyor plate is to convey the battery cells with abnormal voltage in the direction away from the detection box, and then the unqualified products are removed from the conveyor line. When the voltage of the battery cells that have passed the test is qualified, it is necessary to decide whether to rotate the rotating seat according to the needs of the user. When the user needs to When the discharge rate of the battery cell is sampled and tested, the rotating seat will drive the conveyor plate to rotate, otherwise the rotating seat will not rotate, so that the conveying direction of the conveyor plate is toward the test box, thereby conveying the battery cells with qualified voltage to the collection component, and then the collection component transfers the battery cells with qualified voltage to the test box, and then the temperature control unit in the test box is started to control the temperature inside the test box, so that the temperature inside the test box is maintained at about 25 degrees, and then the battery cell is charged and discharged multiple times through the test component, and the operation is continued for at least 7 days. During this period, the test component monitors the change in the capacity of the battery cell, and finally the discharge rate of the battery cell is calculated by an external microcomputer, thereby realizing real-time detection of the battery cell voltage and completing sampling detection of the battery cell, which is convenient for users to understand the yield rate of the battery cell in real time during production, and also convenient for users to understand the average quality level of the battery cell, so that users can adjust production details according to product quality.

[0009] Preferably, the driving assembly includes a telescopic rod; the telescopic rod is rotatably connected to the top surface of the base and driven by a servo motor; the conveying plate is slidably connected to the top surface of the base; the surfaces of the two conveying plates that are away from each other are rotatably connected to a transmission rod, and the transmission rod is fixedly connected to the roller shaft of the conveying roller; a belt is sleeved between the two ends of the telescopic rod and the transmission; during operation, when detecting battery cells of different widths, the user can slide the conveying plate on one side to adjust the spacing between the two conveying plates and stretch the telescopic rod. At this time, the servo motor drives the telescopic rod to rotate, and the telescopic rod then drives the transmission rod to rotate through the belt, and finally the transmission rod drives the rotating roller to rotate, thereby realizing the conveying of the battery cells in the conveying trough. By adjusting the spacing between the conveying plates, battery cells of different widths can be adapted, thereby improving the scope of application of the embodiment of the present invention.

[0010] Preferably, the voltage detection component includes a support plate; an electric push rod is provided at the bottom of the support plate; the support plate is installed at the top of the telescopic end of the electric push rod; the electric push rod is embedded in the top surface of the rotating seat; one end of the support plate is fixedly connected to a baffle; a pair of contact pieces are fixedly connected to the surface of the baffle; a limit plate is installed at the other end of the support plate; the top of the limit plate is wedge-shaped; during operation, when it is necessary to detect the battery cells between the conveying plates, the conveying plate needs to convey the battery cells to be detected to the top of the support plate, and then the electric push rod pushes the support plate to the battery cells to be detected, and inserts the battery cells between the limit plate and the baffle, and finally makes the pole ears of the battery cells contact with the contact pieces on the surface of the baffle, thereby completing the detection of the battery cells, and because the limit plate is wedge-shaped, it is convenient for the battery cells to be detected to be inserted between the limit plate and the baffle, and makes the pole ears at the ends of the battery cells rest on the contact pieces on the surface of the baffle, thereby ensuring the smooth detection of the battery cells, avoiding poor contact between the contact pieces and the pole ears of the battery cells, resulting in inaccurate detection results.

[0011] Preferably, the bottom surface of the support plate is fixedly connected with a spring; the bottom surface of the spring is fixedly connected with a push plate; the push plate is fixedly connected to the telescopic end of the electric push rod; the limit plate is installed on the side of the push plate away from the baffle; when working, when the telescopic end of the electric push rod moves toward the conveying plate, the electric push rod will first push the push plate toward the conveying plate, and the push plate will push the support plate and the baffle toward the conveying plate, and finally the baffle is located between the two conveying plates. At this time, the limit plate cannot block the movement of the battery cell between the conveying plates. When the conveying plate moves the battery cell to the baffle, the baffle will block the battery cell. The electric push rod continues to push the push plate upwards due to the obstruction of the battery cell. The position of the support plate will be restricted, so the push plate will squeeze the spring and move the limit plate between the conveying plates and cooperate with the baffle to clamp the battery cell. By blocking the movement of the battery cell by the baffle first, the position of the battery cell can be better determined, so that the baffle cooperates with the limit plate to clamp the battery cell, avoiding the battery cell from sliding due to its own inertia after the rotating roller stops driving the battery cell, resulting in the limit plate and the baffle being unable to clamp the battery cell smoothly.

[0012] Preferably, a slide groove is provided on the top surface of the push plate; a slide plate is fixedly connected to the bottom surface of the limit plate; the slide plate is slidably connected to the slide groove; a limit groove is provided on the surface of the slide plate and the push plate, and the positions of the two limit grooves correspond to each other; bolts are installed in the two limit grooves; during operation, when testing battery cells of different lengths, the user can screw the bolts in the limit groove so that the slide plate is no longer fixed in the slide groove, thereby allowing the user to slide the slide plate and the limit plate, thereby adjusting the distance between the limit plate and the baffle, so that the distance between the limit plate and the baffle can adapt to battery cells of different lengths, thereby improving the scope of application of the embodiment of the present invention.

[0013] Preferably, the collecting assembly includes a collecting box; the bottom surface of the collecting box is fixedly connected to the top surface of the bottom plate, and the opening of the collecting box is facing the base; the bottom surface of the inside of the collecting box is fixedly connected to a hydraulic cylinder; the telescopic end of the hydraulic cylinder is provided with a plurality of evenly arranged collecting boxes, and the plurality of collecting boxes are stacked and fixed; the bottom surface of the collecting box at the bottom is provided with a slot, and the slot is adapted to the telescopic end of the hydraulic cylinder; during operation, when it is necessary to sample and test the battery cells, the conveying plate will convey the battery cells to be tested to the collection box at the opening of the collecting box. When a collection box is loaded with a battery cell, the hydraulic cylinder will start and push the plurality of collection boxes to rise as a whole, thereby moving the collection box without a battery cell to the same height as the conveying plate. After that, the user can perform sample extraction again, and then collect multiple samples, and then send them into the test box at the same time for self-discharge rate detection. Since the sample capacity is expanded, the probability of accidental errors is reduced.

[0014] Preferably, the two side walls of the collection box are slidably connected to a pair of support frames, and the support frames are driven by a servo motor; the position of the support frames corresponds to the conveying plate; the surfaces of the two support frames are fixedly connected to hydraulic rods; the telescopic ends of the two hydraulic rods are fixedly connected to clamping plates; the inner walls of both sides of the collection box are provided with mounting grooves; the mounting grooves are slidably connected to extrusion wheels; a spring piece 1 is installed between the extrusion wheel and the mounting groove; during operation, when the conveying plate turns to the collection box, the clamping plate will be located at the end of the conveying plate, and after the conveying plate sends the battery cell between the two clamping plates, the hydraulic rod on the surface of the support frame will drive the two clamping plates to approach each other, thereby clamping the battery cell, and then the support frame will move toward the collection box inside the collection box and insert the battery cell into the collection box. During the insertion process, the battery cell will also squeeze the extrusion wheel and spring piece 1, and the elastic force of the spring piece 1 will press the extrusion wheel against the surface of the battery cell, thereby improving the firmness of the battery cell when fixed.

[0015] Preferably, an extension plate is sleeved on the end of the clamping plate away from the collecting box; the end of the extension plate away from the clamping plate is wedge-shaped; a second spring plate is fixedly connected between the extension plate and the clamping plate; during operation, when the conveying plate turns to the clamping plate, the conveying plate will squeeze the extension plate at the end of the clamping plate, and the extension plate approaches the clamping plate and compresses the second spring plate. When the conveying plate rotates to be perpendicular to the collecting box, the extension plate will rest against the end face of the conveying plate under the action of elastic force. At this time, the conveying plate can smoothly move from the conveying plate to between the clamping plate and the extension plate, thereby avoiding a gap between the extension plate and the conveying plate, which causes the battery cells to be stuck in the gap between the conveying plate and the clamping plate during the process of the conveying plate transferring the battery cells to between the clamping plate and the extension plate.

[0016] Preferably, the bottom surface of the detection box is rotatably connected to a sealing plate, and the sealing plate is driven by a servo motor; sealing gaskets are fixedly connected to both sides of the sealing plate, and the sealing gaskets are made of elastic material; a card slot is provided on the top surface of the collection box at the top; the collection box is made of magnetizable metal; an electromagnet column is fixedly connected at a position corresponding to the card slot on the surface of the sealing plate, and the electromagnet column is adapted to the card slot; during operation, when the user needs to transfer the collection box and the battery cell to the detection box, the hydraulic cylinder will push the collection box toward the sealing plate and insert the electromagnet column on the surface of the sealing plate into the card slot. At this time, the electromagnet column starts and absorbs the collection box through the electromagnet column. Then the sealing plate rotates and drives the collection box to rotate together into the detection box, and then the detection component detects it. The collection box is transferred by the electromagnet column, which avoids manual transfer by the user and improves the detection efficiency. At the same time, the sealing gaskets on both sides of the sealing plate can also play a sealing role to ensure the temperature in the detection box is stable.

[0017] Preferably, the voltage detection component includes a pair of connecting frames; a pair of detection plates are slidably connected to the surface of one of the connecting frames, and the detection plate contacts the battery cell connection ears through multiple contacts on the surface to realize the connection between the battery cell and the external detection circuit; a plurality of uniformly arranged pressure plates are fixedly connected to the surface of the other connecting frame; a cover plate is provided on the top surface of the detection box; a connecting rod is fixedly connected to the bottom surface of the cover plate and the surrounding positions; the connecting rod is slidably connected to the detection box; the connecting frame is slidably connected to the bottom surface of the cover plate, and the connection frame is controlled to move by a hydraulic system; during operation, when the discharge rate of the battery cell needs to be detected, the user needs to drive the two connecting frames toward the battery cell, and finally make the detection plate and the pressure plate respectively abut against the two ends of the battery cell, wherein the detection plate is used to contact the battery cell The detection plate is in contact with the tab of the battery cell, and the push plate is used to expand the contact area with the connecting frame and the battery cell. Through the cooperation between the push plate and the detection plate, the detection plate can be pressed against the tab of the battery cell, thereby ensuring the contact effect between the contact point on the surface of the detection plate and the tab of the battery cell, avoiding inaccurate detection results due to poor contact. After the detection is completed, the user can also pull up the cover plate and the connecting plate to open the detection box and take out the detected battery cells to make the collection box empty. After the electromagnet column absorbs the collection box, the sealing plate rotates to rotate the collection box into the collection box, and then the hydraulic cylinder is started and its telescopic end is inserted into the slot at the bottom of the collection box. Then the electromagnet column is powered off, and the telescopic end of the hydraulic cylinder contracts to lower the top collection box to be flush with the conveying plate to facilitate subsequent sampling and detection.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The battery core detection device described in the present invention performs multiple charge and discharge operations on the battery cell through the detection component, and the operation is continued for at least 7 days. During this period, the detection component monitors the change in the capacity of the battery cell, and finally the discharge rate of the battery cell is calculated by an external microcomputer, thereby realizing real-time detection of the battery cell voltage and completing sampling detection of the battery cell. It is convenient for users to understand the yield rate of the battery cell in real time during production, and it is convenient for users to understand the average quality level of the battery cell, so that users can adjust production details according to product quality.

[0020] 2. The battery core detection device described in the present invention transfers the collection box through the electromagnet column, avoiding manual transfer by the user and improving the detection efficiency. At the same time, the sealing gaskets on both sides of the sealing plate can also play a sealing role to ensure the temperature in the detection box is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the conveying plate in the present invention;

[0024] Figure 3 It is a structural schematic diagram of the support plate in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the slide plate of the present invention;

[0026] Figure 5 is a partial cross-sectional view of the extension plate of the present invention;

[0027] Figure 6 It is a partial cross-sectional view of the collection box of the present invention;

[0028] Figure 7 It is a partial cross-sectional view of the collection box of the present invention;

[0029] Figure 8 It is a structural diagram of the electromagnet column in the present invention;

[0030] In the figure: 1, bottom plate; 2, base; 3, rotating seat; 4, conveyor plate; 5, conveyor trough; 6, conveyor roller; 7, detection box; 8, telescopic rod; 9, transmission rod; 10, belt; 11, support plate; 12, electric push rod; 13, baffle; 14, contact piece; 15, limit plate; 16, spring; 17, push plate; 18, slide trough; 19, slide plate; 20, limit slot; 21, bolt; 22, collection box; 23, Hydraulic cylinder; 24. Collection box; 25. Slot; 26. Support frame; 27. Hydraulic rod; 28. Clamping plate; 29. ​​Mounting slot; 30. Extrusion wheel; 31. Spring piece 1; 32. Extension plate; 33. Spring piece 2; 34. Sealing plate; 35. Sealing gasket; 36. Card slot; 37. Electromagnet column; 38. Connecting frame; 39. Detection plate; 40. Pressure plate; 41. Cover plate; 42. Connecting rod; 43. Storage slot. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] like Figures 1 to 2As shown, a battery core detection device according to an embodiment of the present invention comprises a bottom plate 1; a base 2 is fixedly connected to the top surface of the bottom plate 1; a rotating seat 3 is rotatably connected to the top surface of the base 2; a pair of conveying plates 4 are installed on the top surface of the rotating seat 3; a conveying trough 5 is provided on the surface of the side where the two conveying plates 4 are close to each other; a plurality of uniformly arranged conveying rollers 6 are rotatably connected to the top and bottom surfaces of the inner wall of the conveying trough 5, and the conveying rollers 6 are connected by chains; the conveying rollers 6 are driven by a driving assembly; a voltage detection assembly is fixedly connected to the top surface of the rotating seat 3 between the two conveying plates 4; the voltage detection assembly is used to detect the voltage of the battery cell; a collecting assembly is installed on one side of the base 2; a The detection box 7; the collecting assembly is used to collect the battery cells to be detected; a temperature control unit is installed in the inner wall of the detection box 7; the temperature control unit is used to heat the inside of the detection box 7; a detection assembly is installed inside the detection box 7; the detection assembly is used to charge and discharge the battery cells and detect the amount of electricity in the battery cells; during operation, after the battery cells are produced, they need to be tested to ensure that the quality of the battery cells meets the standards. For this purpose, the embodiment of the present invention can be used. First, the implementation of the present invention needs to be installed between two conveyor lines. The produced battery cells pass through the conveying device at the conveyor line to convey the battery cells between the two conveyor plates 4, and both sides of the battery cells are located in the conveying trough 5 on the surface of the conveyor plate 4, and then the rotating roller in the conveying trough 5 is started. The battery cells are thereby transported to the voltage detection component, which detects the voltage of the battery cells. When an abnormality is detected in the battery cell voltage, the rotating seat 3 on the top surface of the base 2 will rotate, thereby driving the conveying plate 4 to rotate together. At this time, the conveying direction of the conveying plate 4 is to convey the battery cells with abnormal voltage in a direction away from the detection box 7, thereby removing the unqualified products from the conveying line. When the voltage of the battery cells that have passed the test is qualified, it is necessary to determine whether the rotating seat 3 rotates according to the needs of the user. When the user needs to perform a sampling test on the discharge rate of the battery cells, the rotating seat 3 will drive the conveying plate 4 to rotate, otherwise the rotating seat 3 will not rotate, so that the conveying direction of the conveying plate 4 is toward the detection box 7, thereby removing the battery cells with qualified voltage from the conveying line. The cells are transported to the collection assembly, and the collection assembly transfers the cells with qualified voltage to the inspection box 7. The temperature control unit in the inspection box 7 is then started to control the temperature inside the inspection box 7 so that the temperature inside the inspection box 7 is maintained at around 25 degrees. The inspection assembly then performs multiple charge and discharge operations on the cells, and the operation continues for at least 7 days. During this period, the inspection assembly monitors the changes in the capacity of the cells, and finally the discharge rate of the cells is calculated by an external microcomputer, thereby realizing both real-time detection of the cell voltage and completion of sampling detection of the cells. This makes it convenient for users to understand the yield rate of the cells in real time during production, and the average quality level of the cells, thereby making it convenient for users to adjust production details according to product quality.

[0033] like Figures 1 to 2As shown, the driving assembly includes a telescopic rod 8; the telescopic rod 8 is rotatably connected to the top surface of the base 2 and is driven by a servo motor; the conveying plate 4 is slidably connected to the top surface of the base 2; the surfaces of the two conveying plates 4 that are away from each other are rotatably connected to a transmission rod 9, and the transmission rod 9 is fixedly connected to the roller shaft of the conveying roller 6; a belt 10 is sleeved between the two ends of the telescopic rod 8 and the transmission; during operation, when detecting battery cells of different widths, the user can slide the conveying plate 4 on one side to adjust the spacing between the two conveying plates 4 and stretch the telescopic rod 8. At this time, the servo motor drives the telescopic rod 8 to rotate, and the telescopic rod 8 then drives the transmission rod 9 to rotate through the belt 10, and finally the transmission rod 9 drives the rotating roller to rotate, thereby realizing the conveying of the battery cells in the conveying trough 5. By adjusting the spacing of the conveying plates 4, it can adapt to battery cells of different widths, thereby improving the scope of application of the embodiment of the present invention.

[0034] like Figures 2 to 4 As shown, the voltage detection assembly includes a support plate 11; an electric push rod 12 is provided at the bottom of the support plate 11; the support plate 11 is installed on the top of the telescopic end of the electric push rod 12; the electric push rod 12 is embedded in the top surface of the rotating seat 3; one end of the support plate 11 is fixedly connected to a baffle 13; a pair of contact pieces 14 are fixedly connected to the surface of the baffle 13; a limit plate 15 is installed at the other end of the support plate 11; the top of the limit plate 15 is wedge-shaped; when working, when it is necessary to detect the battery cells between the conveying plates 4, the conveying plates 4 need to convey the battery cells to be detected to the support plate 11 At the top, the electric push rod 12 pushes the support plate 11 to the battery cell to be tested, and inserts the battery cell between the limit plate 15 and the baffle 13, and finally makes the pole ear of the battery cell contact with the contact piece 14 on the surface of the baffle 13, thereby completing the detection of the battery cell. Since the limit plate 15 is wedge-shaped, it is convenient for the battery cell to be tested to be inserted between the limit plate 15 and the baffle 13, and makes the pole ear at the end of the battery cell rest on the contact piece 14 on the surface of the baffle 13, thereby ensuring the smooth detection of the battery cell and avoiding poor contact between the contact piece 14 and the battery cell pole ear, which leads to inaccurate detection results.

[0035] like Figures 2 to 4As shown, the bottom surface of the support plate 11 is fixedly connected with a spring 16; the bottom surface of the spring 16 is fixedly connected with a push plate 17; the push plate 17 is fixedly connected to the telescopic end of the electric push rod 12; the limit plate 15 is installed on the side of the push plate 17 away from the baffle 13; when working, when the telescopic end of the electric push rod 12 moves toward the conveying plate 4, the electric push rod 12 will first push the push plate 17 toward the conveying plate 4, and the push plate 17 will push the support plate 11 and the baffle 13 toward the conveying plate 4, and finally make the baffle 13 located between the two conveying plates 4. At this time, the limit plate 15 cannot block the movement of the battery cell between the conveying plates 4. When the conveying plate 4 moves the battery cell to the baffle 13 When the battery is in the position, the baffle 13 will block the movement of the battery cell. At this time, the electric push rod 12 continues to push the push plate 17 to move upward. Due to the obstruction of the battery cell, the position of the support plate 11 will be restricted, so the push plate 17 will squeeze the spring 16 and make the limit plate 15 move between the conveying plates 4 and cooperate with the baffle 13 to clamp the battery cell. By blocking the movement of the battery cell first, the position of the battery cell can be better determined, so that the baffle 13 is convenient for cooperating with the limit plate 15 to clamp the battery cell, avoiding the battery cell from sliding due to its own inertia after the rotating roller stops driving the battery cell, resulting in the limit plate 15 and the baffle 13 being unable to clamp the battery cell smoothly.

[0036] like Figures 2 to 4 As shown, a slide groove 18 is provided on the top surface of the push plate 17; a slide plate 19 is fixedly connected to the bottom surface of the limit plate 15; the slide plate 19 is slidably connected to the slide groove 18; a limit groove 20 is provided on the surface of the slide plate 19 and the push plate 17, and the positions of the two limit grooves 20 correspond to each other; a bolt 21 is installed in the two limit grooves 20; during operation, when testing battery cells of different lengths, the user can screw the bolt 21 in the limit groove 20 so that the slide plate 19 is no longer fixed in the slide groove 18, thereby allowing the user to slide the slide plate 19 and the limit plate 15, thereby adjusting the distance between the limit plate 15 and the baffle 13, so that the distance between the limit plate 15 and the baffle 13 can adapt to battery cells of different lengths, thereby improving the scope of application of the embodiment of the present invention.

[0037] like Figure 1 and Figure 6As shown, the collecting assembly includes a collecting box 22; the bottom surface of the collecting box 22 is fixedly connected to the top surface of the bottom plate 1, and the opening of the collecting box 22 faces the base 2; the bottom surface of the inside of the collecting box 22 is fixedly connected to a hydraulic cylinder 23; the telescopic end of the hydraulic cylinder 23 is provided with a plurality of evenly arranged collecting boxes 24, and the plurality of collecting boxes 24 are stacked and fixed; the bottom surface of the collecting box 24 at the bottom is provided with a slot 25, and the slot 25 is adapted to the telescopic end of the hydraulic cylinder 23; when working, when it is necessary to sample the battery cells During testing, the conveying plate 4 will convey the battery cells to be tested to the collection boxes 24 at the opening of the collection box 22. When a battery cell is loaded into a collection box 24, the hydraulic cylinder 23 will start and push the multiple collection boxes 24 to rise as a whole, thereby moving the collection boxes 24 without battery cells to the same height as the conveying plate 4. After that, the user can extract the sample again, and then collect multiple samples, and then send them into the testing box 7 at the same time for self-discharge rate testing. Since the sample capacity is expanded, the probability of accidental errors is reduced.

[0038] like Figure 1 、 Figure 6 and Figure 7 As shown, a pair of support frames 26 are slidably connected to the two side walls of the collection box 22, and the support frames 26 are driven by a servo motor; the position of the support frames 26 corresponds to the conveying plate 4; the surfaces of the two support frames 26 are fixedly connected to hydraulic rods 27; the telescopic ends of the two hydraulic rods 27 are fixedly connected to clamping plates 28; the inner walls of both sides of the collection box 24 are provided with mounting grooves 29; the mounting grooves 29 are slidably connected to the extrusion wheels 30; a spring 31 is installed between the extrusion wheels 30 and the mounting grooves 29; when working, when the conveying plate 4 turns to the collection box 24, the conveying plate 4 turns to the collection box 24, and ... When the battery cells are collected by the collecting box 22, the clamping plate 28 will be located at the end of the conveying plate 4. After the conveying plate 4 sends the battery cells between the two clamping plates 28, the hydraulic rod 27 on the surface of the support frame 26 will drive the two clamping plates 28 to approach each other, thereby clamping the battery cells. Then the support frame 26 will move toward the collection box 24 inside the collection box 22 and insert the battery cells into the collection box 24. During the insertion process, the battery cells will also squeeze the squeezing wheel 30 and the spring piece 1 31, and the elastic force of the spring piece 1 31 will press the squeezing wheel 30 against the surface of the battery cells, thereby improving the firmness of the battery cells when they are fixed.

[0039] like Figure 1 and Figure 5As shown, an extension plate 32 is sleeved on the end of the clamping plate 28 away from the collecting box 22; the end of the extension plate 32 away from the clamping plate 28 is wedge-shaped; a second spring piece 33 is fixedly connected between the extension plate 32 and the clamping plate 28; during operation, when the conveying plate 4 turns to the clamping plate 28, the conveying plate 4 will squeeze the extension plate 32 at the end of the clamping plate 28, and the extension plate 32 approaches the clamping plate 28 and compresses the second spring piece 33. When the conveying plate 4 rotates to be perpendicular to the collecting box 22, the extension plate 32 will be against the end surface of the conveying plate 4 under the action of the elastic force. At this time, the conveying plate 4 can smoothly move from the conveying plate 4 to between the clamping plate 28 and the extension plate 32, thereby avoiding a gap between the extension plate 32 and the conveying plate 4, which causes the battery cells to be stuck in the gap between the conveying plate 4 and the clamping plate 28 during the process of the conveying plate 4 transferring the battery cells to between the clamping plate 28 and the extension plate 32.

[0040] like Figure 1 、 Figure 6 and Figure 8 As shown, the bottom surface of the detection box 7 is rotatably connected to a sealing plate 34, and the sealing plate 34 is driven by a servo motor; sealing gaskets 35 are fixedly connected to both sides of the sealing plate 34, and the sealing gaskets 35 are made of elastic material; a card slot 36 is provided on the top surface of the collection box 24 at the top; the collection box 24 is made of magnetizable metal; an electromagnet column 37 is fixedly connected to the position corresponding to the card slot 36 on the surface of the sealing plate 34, and the electromagnet column 37 is adapted to the card slot 36; during operation, when the user needs to transfer the collection box 24 and the battery cell to the detection box 7. The hydraulic cylinder 23 will push the collection box 24 toward the sealing plate 34 and insert the electromagnet column 37 on the surface of the sealing plate 34 into the card slot 36. At this time, the electromagnet column 37 is started and the collection box 24 is adsorbed by the electromagnet column 37. Then the sealing plate 34 rotates and drives the collection box 24 to rotate into the detection box 7. Then, the detection component will detect it. The collection box 24 is transferred by the electromagnet column 37, which avoids manual transfer by the user and improves the detection efficiency. At the same time, the sealing gaskets 35 on both sides of the sealing plate 34 can also play a sealing role to ensure that the temperature in the detection box 7 is stable.

[0041] like Figure 6As shown, the voltage detection assembly includes a pair of connecting frames 38; a pair of detection plates 39 are slidably connected to the surface of one of the connecting frames 38, and the detection plate 39 contacts the battery cell connection ears through multiple contacts on the surface to realize the connection between the battery cell and the external detection circuit; a plurality of uniformly arranged pressure plates 40 are fixedly connected to the surface of the other connecting frame 38; a cover plate 41 is provided on the top surface of the detection box 7; a connecting rod 42 is fixedly connected to the bottom surface and surrounding positions of the cover plate 41; the connecting rod 42 is slidably connected to the detection box 7; the connecting frame 38 is slidably connected to the bottom surface of the cover plate 41, and the connection frame 38 is controlled to move by a hydraulic system; during operation, when the discharge rate of the battery cell needs to be detected, the user needs to drive the two connecting frames 38 toward the battery cell, and finally make the detection plate 39 and the pressure plate 40 respectively abut against the two ends of the battery cell, wherein the detection plate 39 is used to contact the battery cell. The detection plate 39 can be pressed against the tab of the battery cell through the cooperation between the detection plate 39 and the detection plate 39, thereby ensuring the contact effect between the contact point on the surface of the detection plate 39 and the tab of the battery cell, avoiding inaccurate detection results due to poor contact. After the detection is completed, the user can also pull up the cover plate 41 and the connecting plate to open the detection box 7 and take out the detected battery cells to make the collection box 24 empty. After the electromagnet column 37 adsorbs the collection box 24, the sealing plate 34 rotates to rotate the collection box 24 into the collection box 22, and then the hydraulic cylinder 23 is started to insert its telescopic end into the slot 25 at the bottom of the collection box 24. Then the electromagnet column 37 is powered off, and the telescopic end of the hydraulic cylinder 23 contracts to lower the top collection box 24 to be flush with the conveying plate 4 to facilitate continued sampling and detection.

[0042] During operation, after the production of the battery cells is completed, the battery cells need to be tested to ensure that the quality of the battery cells meets the standards. For this purpose, the embodiment of the present invention can be used. First, the implementation of the present invention needs to be installed between two conveyor lines. The produced battery cells pass through the conveying device at the conveyor line to convey the battery cells between the two conveyor plates 4, and make the two sides of the battery cells located in the conveying groove 5 on the surface of the conveyor plate 4. Then the rotating roller in the conveying groove 5 is started to convey the battery cells to the voltage detection component, and the voltage detection component detects the voltage of the battery cells. When the battery cell voltage is detected to be abnormal, the rotating seat 3 on the top surface of the base 2 will rotate, thereby driving the conveyor plate 4 to rotate together. At this time, the conveying direction of the conveyor plate 4 is to convey the battery cells with abnormal voltage in the direction away from the detection box 7, and then the unqualified products are removed from the conveyor line. When the voltage of the battery cells that have passed the test is qualified, it is necessary to decide whether to rotate the rotating seat 3 according to the needs of the user. When the user needs When the discharge rate of the battery cell is sampled and tested, the rotating seat 3 will drive the conveying plate 4 to rotate, otherwise the rotating seat 3 will not rotate, so that the conveying direction of the conveying plate 4 is toward the detection box 7, thereby conveying the battery cell with qualified voltage to the collection component, and then the collection component transfers the battery cell with qualified voltage to the detection box 7, and then the temperature control unit in the detection box 7 is started, and then the temperature inside the detection box 7 is controlled, so that the temperature inside the detection box 7 is maintained at about 25 degrees, and then the battery cell is charged and discharged multiple times by the detection component, and the operation is continued for at least 7 days. During this period, the detection component monitors the change in the capacity of the battery cell, and finally the discharge rate of the battery cell is calculated by the external microcomputer, thereby realizing real-time detection of the battery cell voltage and completing sampling detection of the battery cell, which is convenient for users to understand the yield rate of the battery cell in real time during production, and also convenient for users to understand the average quality level of the battery cell, so that users can adjust production details according to product quality.

[0043] When detecting battery cells of different widths, the user can slide the conveying plate 4 on one side to adjust the spacing between the two conveying plates 4 and stretch the telescopic rod 8. At this time, the servo motor drives the telescopic rod 8 to rotate, and the telescopic rod 8 then drives the transmission rod 9 to rotate through the belt 10. Finally, the transmission rod 9 drives the rotating roller to rotate, thereby realizing the conveying of the battery cells in the conveying trough 5. By adjusting the spacing between the conveying plates 4, it can adapt to battery cells of different widths, thereby improving the scope of application of the embodiment of the present invention.

[0044] When it is necessary to inspect the battery cells between the conveyor plates 4, the conveyor plates 4 need to transport the battery cells to be inspected to the top of the support plate 11, and then the electric push rod 12 pushes the support plate 11 to the battery cells to be inspected, and inserts the battery cells between the limit plate 15 and the baffle 13, and finally makes the pole ears of the battery cells contact with the contact pieces 14 on the surface of the baffle 13, thereby completing the inspection of the battery cells. Since the limit plates 15 are wedge-shaped, it is convenient for the battery cells to be inspected to be inserted between the limit plates 15 and the baffle 13, and makes the pole ears at the ends of the battery cells rest on the contact pieces 14 on the surface of the baffle 13, thereby ensuring that the battery cell inspection is carried out smoothly, avoiding poor contact between the contact pieces 14 and the battery cell pole ears, resulting in inaccurate inspection results.

[0045] When the telescopic end of the electric push rod 12 moves toward the conveying plate 4, the electric push rod 12 will first push the push plate 17 to move toward the conveying plate 4, and the push plate 17 will push the supporting plate 11 and the baffle 13 to move toward the conveying plate 4, and finally make the baffle 13 located between the two conveying plates 4. At this time, the limit plate 15 cannot block the movement of the battery cell between the conveying plates 4. When the conveying plate 4 moves the battery cell to the baffle 13, the baffle 13 will block the movement of the battery cell. At this time, the electric push rod 12 continues to push the push plate 17 upward, and due to the movement of the battery cell The position of the support plate 11 will be restricted, so the push plate 17 will squeeze the spring 16 and move the limit plate 15 between the conveying plates 4, and cooperate with the baffle 13 to clamp the battery cell. By blocking the movement of the battery cell by the baffle 13 first, the position of the battery cell can be better determined, so that it is convenient for the baffle 13 to cooperate with the limit plate 15 to clamp the battery cell, and avoid the battery cell from sliding due to its own inertia after the rotating roller stops driving the battery cell, resulting in the limit plate 15 and the baffle 13 being unable to clamp the battery cell smoothly.

[0046] When testing battery cells of different lengths, the user can screw the bolt 21 in the limit slot 20 so that the slide 19 is no longer fixed in the slide slot 18, thereby allowing the user to slide the slide 19 and the limit plate 15, thereby adjusting the distance between the limit plate 15 and the baffle 13, so that the distance between the limit plate 15 and the baffle 13 can adapt to battery cells of different lengths, thereby improving the scope of application of the embodiment of the present invention.

[0047] When sampling and testing of battery cells is required, the conveying plate 4 will convey the battery cells to be tested to the collection boxes 24 at the opening of the collection box 22. When a collection box 24 is loaded with a battery cell, the hydraulic cylinder 23 will start and push the multiple collection boxes 24 to rise as a whole, thereby moving the collection boxes 24 without battery cells to the same height as the conveying plate 4. After that, the user can extract samples again and collect multiple samples, and then send them into the test box 7 at the same time for self-discharge rate testing. Since the sample capacity is expanded, the probability of accidental errors is reduced.

[0048] When the conveying plate 4 turns to the collection box 22, the clamping plate 28 will be located at the end of the conveying plate 4. After the conveying plate 4 sends the battery cell between the two clamping plates 28, the hydraulic rod 27 on the surface of the support frame 26 will drive the two clamping plates 28 to approach each other, thereby clamping the battery cell. Then the support frame 26 will move toward the collection box 24 inside the collection box 22 and insert the battery cell into the collection box 24. During the insertion process, the battery cell will also squeeze the squeezing wheel 30 and the spring piece 1 31, and the elastic force of the spring piece 1 31 will press the squeezing wheel 30 against the surface of the battery cell, thereby improving the firmness of the battery cell when it is fixed.

[0049] When the conveying plate 4 turns to the clamping plate 28, the conveying plate 4 will squeeze the extension plate 32 at the end of the clamping plate 28, and the extension plate 32 will move closer to the clamping plate 28 and compress the spring piece 23. When the conveying plate 4 rotates to be perpendicular to the collecting box 22, the extension plate 32 will be pressed against the end face of the conveying plate 4 under the action of the elastic force. At this time, the conveying plate 4 can smoothly move from the conveying plate 4 to between the clamping plate 28 and the extension plate 32, thereby avoiding a gap between the extension plate 32 and the conveying plate 4, which would cause the battery cells to be stuck in the gap between the conveying plate 4 and the clamping plate 28 during the process of the conveying plate 4 transferring the battery cells to between the clamping plate 28 and the extension plate 32.

[0050] When the user needs to transfer the collection box 24 and the battery cells to the testing box 7, the hydraulic cylinder 23 will push the collection box 24 toward the sealing plate 34, and insert the electromagnet pillars 37 on the surface of the sealing plate 34 into the card slots 36. At this time, the electromagnet pillars 37 are activated and absorb the collection box 24 through the electromagnet pillars 37. Then the sealing plate 34 rotates, and drives the collection box 24 to rotate into the testing box 7. Then, the testing component will detect it. The collection box 24 is transferred by the electromagnet pillars 37, avoiding the user's manual transfer and improving the detection efficiency. At the same time, the sealing pads 35 on both sides of the sealing plate 34 can also play a sealing role to ensure the temperature in the testing box 7 is stable.

[0051] When the discharge rate of the battery cell needs to be tested, the user needs to drive the two connecting frames 38 to move toward the battery cell, and finally make the detection plate 39 and the pressure plate 40 respectively press against the two ends of the battery cell, wherein the detection plate 39 is used to contact the pole ear of the battery cell, and the pressure plate is used to expand the contact area between the connection frame 38 and the battery cell. Through the cooperation between the pressure plate and the detection plate 39, the detection plate 39 can be pressed against the pole ear of the battery cell, thereby ensuring the contact effect between the contact point on the surface of the detection plate 39 and the pole ear of the battery cell, avoiding inaccurate detection results due to poor contact. After the test is completed, the user can also pull up the cover plate 41 and the connecting plate to open the test box 7 and take out the tested battery cells so that the collection box 24 is empty. Then, after the electromagnet column 37 adsorbs the collection box 24, the sealing plate 34 rotates to rotate the collection box 24 into the collection box 22. Then the hydraulic cylinder 23 is started and its telescopic end is inserted into the slot 25 at the bottom of the collection box 24. Then the electromagnet column 37 is powered off, and the telescopic end of the hydraulic cylinder 23 is retracted to lower the top collection box 24 to be flush with the conveying plate 4 to facilitate continued sampling and testing.

[0052] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery core detection device, characterized in that: The invention comprises a bottom plate (1); the top surface of the bottom plate (1) is fixedly connected to a base (2); the top surface of the base (2) is rotatably connected to a rotating seat (3); a pair of conveying plates (4) are installed on the top surface of the rotating seat (3); a conveying trough (5) is provided on the surface of the side of the two conveying plates (4) close to each other; the top surface and the bottom surface of the inner wall of the conveying trough (5) are rotatably connected to a plurality of uniformly arranged conveying rollers (6), and the conveying rollers (6) are connected by a chain; the conveying rollers (6) are driven by a driving component; the top surface of the rotating seat (3) is fixedly connected to a voltage detection component between the two conveying plates (4); the voltage detection component is used to detect the voltage of the battery cell; a collecting component is installed on one side of the base (2); a detection box (7) is installed on the top of the collecting component; the collecting component is used to collect the battery cell to be detected; the detection box ( 7) A temperature control unit is installed in the inner wall; the temperature control unit is used to heat the inside of the detection box (7); a detection component is installed in the detection box (7); the detection component is used to detect the amount of electricity in the battery cell; when the battery cell voltage is detected to be abnormal, the rotating seat (3) on the top surface of the base (2) will rotate, thereby driving the conveying plate (4) to rotate together, and at this time, the conveying direction of the conveying plate (4) is to convey the battery cell with abnormal voltage in a direction away from the detection box (7); when the user needs to perform a sampling test on the discharge rate of the battery cell, the rotating seat (3) will drive the conveying plate (4) to rotate, otherwise the rotating seat (3) will not rotate, so that the conveying direction of the conveying plate (4) is toward the detection box (7), thereby conveying the battery cell with qualified voltage to the collection component, and then the collection component transfers the battery cell with qualified voltage to the detection box (7).

2. A battery core detection device according to claim 1, characterized in that: The driving assembly comprises a telescopic rod (8); the telescopic rod (8) is rotatably connected to the top surface of the base (2) and driven by a servo motor; the conveying plate (4) is slidably connected to the top surface of the base (2); the surfaces of the two conveying plates (4) that are away from each other are rotatably connected to a transmission rod (9), and the transmission rod (9) is fixedly connected to the roller shaft of the conveying roller (6); belts (10) are sleeved between the two ends of the telescopic rod (8) and the transmission.

3. The battery core detection device according to claim 1, characterized in that: The voltage detection assembly comprises a support plate (11); an electric push rod (12) is provided at the bottom of the support plate (11); the support plate (11) is mounted on the top of the telescopic end of the electric push rod (12); the electric push rod (12) is embedded in the top surface of the rotating seat (3); a baffle (13) is fixedly connected to one end of the support plate (11); a pair of contact pieces (14) are fixedly connected to the surface of the baffle (13); a limit plate (15) is installed at the other end of the support plate (11); and the top of the limit plate (15) is wedge-shaped.

4. A battery core detection device according to claim 3, characterized in that: The bottom surface of the support plate (11) is fixedly connected to a spring (16); the bottom surface of the spring (16) is fixedly connected to a push plate (17); the push plate (17) is fixedly connected to the telescopic end of the electric push rod (12); and the limit plate (15) is installed on a side of the push plate (17) away from the baffle (13).

5. A battery core detection device according to claim 4, characterized in that: The top surface of the push plate (17) is provided with a slide groove (18); the bottom surface of the limiting plate (15) is fixedly connected with a slide plate (19); the slide plate (19) is slidably connected to the slide groove (18); the surfaces of the slide plate (19) and the push plate (17) are both provided with a limit groove (20), and the positions of the two limit grooves (20) correspond to each other; a bolt (21) is installed in both the limit grooves (20).

6. The battery core detection device according to claim 1, characterized in that: The collecting assembly comprises a collecting box (22); the bottom surface of the collecting box (22) is fixedly connected to the top surface of the bottom plate (1), and the opening of the collecting box (22) faces the base (2); the bottom surface inside the collecting box (22) is fixedly connected to a hydraulic cylinder (23); the telescopic end of the hydraulic cylinder (23) is provided with a plurality of evenly arranged collecting boxes (24), and the plurality of collecting boxes (24) are stacked and fixedly arranged; the bottom surface of the collecting box (24) located at the bottom is provided with a slot (25), and the slot (25) is adapted to the telescopic end of the hydraulic cylinder (23).

7. A battery core detection device according to claim 6, characterized in that: A pair of support frames (26) are slidably connected to the two side walls of the collection box (22), and the support frames (26) are driven by a servo motor; the position of the support frames (26) corresponds to the conveying plate (4); the surfaces of the two support frames (26) are fixedly connected to hydraulic rods (27); the telescopic ends of the two hydraulic rods (27) are fixedly connected to clamping plates (28); the inner walls of both sides of the collection box (24) are provided with mounting grooves (29); an extrusion wheel (30) is slidably connected in the mounting groove (29); and a spring piece (31) is installed between the extrusion wheel (30) and the mounting groove (29).

8. The battery core detection device according to claim 7, characterized in that: An extension plate (32) is sleeved on one end of the clamping plate (28) away from the collecting box (22); an end of the extension plate (32) away from the clamping plate (28) is arranged in a wedge-shaped structure; and a second spring piece (33) is fixedly connected between the extension plate (32) and the clamping plate (28).

9. The battery core detection device according to claim 6, characterized in that: The bottom surface of the detection box (7) is rotatably connected to a sealing plate (34), and the sealing plate (34) is driven by a servo motor; sealing pads (35) are fixedly connected to both sides of the sealing plate (34), and the sealing pads (35) are made of a material; a card slot (36) is provided on the top surface of the collection box (24) located at the top; an electromagnet column (37) is fixedly connected to a position on the surface of the sealing plate (34) corresponding to the card slot (36), and the electromagnet column (37) is adapted to the card slot (36).

10. The battery core detection device according to claim 9, characterized in that: The voltage detection assembly includes a pair of connection frames (38); a pair of detection plates (39) are slidably connected to the surface of one of the connection frames (38), and the detection plates (39) are in contact with the battery cell connection tabs through surface contacts; a plurality of uniformly arranged pressure plates (40) are fixedly connected to the surface of the other connection frame (38); a cover plate (41) is provided on the top surface of the detection box (7); a connecting rod (42) is fixedly connected to the bottom surface and surrounding positions of the cover plate (41); the connecting rod (42) is slidably connected to the detection box (7); the connection frame (38) is slidably connected to the bottom surface of the cover plate (41), and the connection frame (38) is controlled to move by a hydraulic system; a receiving groove (43) is provided on the side wall of the detection box (7) at a corresponding position of the connection frame (38), and the receiving groove (43) is adapted to the connection frame (38).

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