Battery cell detection device

Abstract

The invention provides a battery cell detection device. The battery cell detection device comprises a base; the conveying mechanism is mounted on the base and comprises a conveying belt; the counting assembly is located on the conveying path of the conveying belt and used for counting the number of the lithium batteries conveyed by the conveying belt; an appearance detection assembly; the appearance detection assembly and the rejecting assembly are both located on the conveying path of the conveying belt, and the appearance detection assembly is located between the counting assembly and the rejecting assembly. According to the technical scheme, the battery cell detection device can solve the problem that a detection device in the prior art is single in function.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium batteries, and in particular to a battery cell detection device. Background Art

[0002] Lithium batteries were first explored by Thomas Edison in the early 20th century, but their truly revolutionary breakthroughs came in recent decades with the maturity of lithium metal and lithium-ion technology. Unlike lithium-ion batteries and lithium-ion polymer batteries, lithium batteries use lithium metal or lithium alloy as the negative electrode material, as well as non-aqueous electrolyte solutions, which give them the characteristics of high energy density and long life. However, the chemical properties of lithium metal are extremely active and easily react with water and oxygen in the air, leading to safety hazards and performance degradation. Therefore, the processing, storage and use of lithium batteries have extremely strict requirements on environmental conditions. With the rapid development of microelectronics technology, the popularity of small electronic devices has posed unprecedented challenges to power sources, requiring batteries to be smaller, lighter and more energy dense. Lithium batteries, with their excellent performance, have gradually become an ideal choice to meet these needs. In the manufacturing process of lithium batteries, ensuring the quality and safety of the battery cell (i.e., the core component of the battery) is of paramount importance. To this end, manufacturers widely use various advanced detection devices, such as X-ray detection equipment, machine vision systems, and automated online detection systems to monitor the structural integrity and chemical properties of the battery cell.

[0003] However, the detection device of the prior art has a relatively single function and is unable to count the production quantity at the same time, which constitutes an obstacle to quickly and accurately grasping the production progress and efficiency. In addition, when defects are detected in the battery cells, manual intervention is still required to manually remove unqualified products, which not only increases production costs, but also increases the labor burden of workers. Summary of the invention

[0004] The main purpose of the present invention is to provide a battery cell detection device, which can solve the problem that the detection device in the prior art has a relatively single function.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a battery cell detection device, comprising: a base; a conveying mechanism installed on the base, the conveying mechanism comprising a conveyor belt; a counting component located on the conveying path of the conveyor belt, the counting component being used to count the number of lithium batteries conveyed by the conveyor belt; an appearance detection component; and a rejection component, the appearance detection component and the rejection component are both located on the conveying path of the conveyor belt, and the appearance detection component is located between the counting component and the rejection component.

[0006] Through the above arrangement, the functions of the battery cell detection device are made more diversified, which can improve the automation level and production efficiency of the battery cell manufacturing process.

[0007] Furthermore, the conveying mechanism also includes a first mounting seat, the conveying belt is mounted on the first mounting seat, and at least one of the counting component, the appearance detection component and the rejection component is detachably mounted on the first mounting seat.

[0008] Through the above arrangement, when a component fails, it can be quickly removed for repair or replacement without suspending the entire production line, thereby reducing the downtime of the production line and ensuring production continuity and efficiency.

[0009] Furthermore, the conveying mechanism also includes a first mounting seat, the conveying belt is installed on the first mounting seat, the counting assembly includes a counting part and a second mounting seat, the second mounting seat is installed on the first mounting seat, and the counting part is detachably mounted on the second mounting seat.

[0010] Through the above arrangement, the counting component can not only share the first mounting seat with other components (such as appearance inspection components and rejection components), but also the counting part itself can be easily replaced as needed, thereby improving the overall versatility and modularity of the equipment. At the same time, the detachable counting part design makes maintenance or upgrading simple and quick. When the counting part fails, it can be directly removed from the second mounting seat for inspection or replacement, thus avoiding interference with the entire conveying mechanism or production line, reducing maintenance costs, and shortening maintenance time.

[0011] Furthermore, the counting part includes a counter and a locking piece, a connecting column is arranged on the top of the counter, a first through hole for the connecting column to pass through is arranged on the second mounting seat, and the locking piece locks the connecting column on the second mounting seat.

[0012] Through the above arrangement, the counter can be fixedly mounted on the second mounting base without using additional tools or complicated fixing methods, which can improve the installation efficiency. The connection column cooperates with the first through hole to ensure the accurate alignment of the counter during installation, and the locking effect of the locking member ensures the installation stability of the counter.

[0013] Furthermore, the appearance detection assembly includes an appearance detection unit and a third mounting seat, the third mounting seat is mounted on the base, the appearance detection unit is mounted on the third mounting seat, and the detection end of the appearance detection unit is arranged toward the conveyor belt.

[0014] Through the above settings, accurate positioning detection of the battery cell appearance can be achieved.

[0015] Further, along the first direction, the conveyor belt has a first side and a second side that are relatively arranged, the third mounting seat includes a first plate segment, a second plate segment and a third plate segment that are connected in sequence, the first plate segment is arranged on the first side, the third plate segment is arranged on the second side, the second plate segment is connected between the first plate segment and the third plate segment, the second plate segment is located above the conveyor belt, the appearance detection unit is installed on the second plate segment, the appearance detection unit includes a scanning head, the scanning head is located between the second plate segment and the conveyor belt, and the scanning head forms a detection end.

[0016] Through the above arrangement, the space above and on both sides of the conveyor belt can be efficiently utilized, saving production space. The scanning head is located below the second plate section, which can reduce the interference of the external environment on the detection process, such as dust, light, etc., and can ensure the detection accuracy.

[0017] Further, the rejecting assembly includes a pushing portion, which is movably arranged along a first direction relative to the conveyor belt.

[0018] Through the above arrangement, when a defective battery cell is detected, the battery cell can be pushed away from the normal conveying path by the pusher, so that the defective battery cell can be automatically removed without manual intervention, thereby improving production efficiency and automation level. At the same time, the automatic removal function reduces the demand for manpower, reduces the labor intensity of workers, and reduces the labor cost of production.

[0019] Furthermore, the rejection assembly also includes a fourth mounting seat, which is mounted on the base or the first mounting seat, and the pushing portion includes a fixed section and a telescopic section, the fixed section is fixedly mounted on the fourth mounting seat, and the telescopic section is movably arranged on the fixed section along the first direction.

[0020] Through the above arrangement, the installation of the pusher can be realized. The telescopic section is movably arranged along the first direction relative to the fixed section, so that the pusher can accurately perform the rejection operation according to the specific position of the battery cell on the conveyor belt, ensuring the accuracy and efficiency of the rejection operation. The moving range of the telescopic section can be adjusted according to actual needs to adapt to battery cells of different sizes or different production line layouts.

[0021] Furthermore, the rejecting assembly also includes a connecting piece, which is fixedly mounted on the fixed section. The fourth mounting seat is provided with a second through hole for the fixed section to pass through, and the connecting piece is fixedly connected to the fourth mounting seat.

[0022] Through the above arrangement, the fixing section can be fixedly mounted on the fourth mounting seat.

[0023] Furthermore, the rejection component also includes a sensing part, which is mounted on the fourth mounting seat and is used to detect whether the lithium battery reaches the pushing range of the pushing part.

[0024] Through the above settings, the automatic control of the rejection component is more accurate. It can monitor the position of the battery cell in real time to ensure that the push unit will only start when the battery cell correctly enters the push range, avoiding invalid rejection and reducing misoperation. In addition, through the real-time detection of the sensing unit, the push unit can respond immediately. Once the battery cell enters the push range, the rejection operation is performed without waiting, reducing the rejection delay and improving the rejection efficiency of the production line.

[0025] The technical solution of the present invention is applied, and a conveying mechanism, a counting component, an appearance detection component and a rejection component are provided. The counting component is located on the conveying path, and can automatically identify and count the number of lithium batteries on the conveyor belt. The appearance detection component is also located on the conveying path, and can detect the appearance quality of the battery cells during the conveying process of the lithium batteries, and can quickly detect defects on the surface of the battery cells of the lithium batteries, such as scratches, pits, pollution, etc. The rejection component is arranged at a position after the appearance detection component, and can automatically identify and reject the battery cells with detected appearance defects, and timely reject the battery cells with appearance defects to avoid unqualified lithium batteries from flowing into subsequent processes, thereby reducing product safety hazards and subsequent processing costs. The present application makes the functions of the battery cell detection device more diversified by integrating the conveying, counting, appearance detection and rejection functions of lithium batteries into one device, which can improve the automation level and production efficiency of the battery cell manufacturing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A schematic structural diagram of a battery cell detection device according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic structural diagram of a third mounting base of a battery cell detection device according to an embodiment of the present invention is shown;

[0029] Figure 3 A schematic structural diagram of an appearance inspection unit of a battery cell inspection device according to an embodiment of the present invention is shown;

[0030] Figure 4 A schematic structural diagram of a base of a battery cell detection device according to an embodiment of the present invention is shown;

[0031] Figure 5 A schematic structural diagram of a conveying mechanism of a battery cell detection device according to an embodiment of the present invention is shown;

[0032] Figure 6 A schematic structural diagram of a rejecting component of a cell detection device according to an embodiment of the present invention is shown;

[0033] Figure 7 A schematic structural diagram of a second mounting base of a battery cell detection device according to an embodiment of the present invention is shown;

[0034] Figure 8 A schematic structural diagram of a counting unit of a battery cell detection device according to an embodiment of the present invention is shown.

[0035] The above drawings include the following reference numerals:

[0036] 10. Base; 11. Third connecting hole; 12. Fourth connecting hole; 20. Conveying mechanism; 21. Conveyor belt; 22. First mounting seat; 221. Fifth connecting hole; 23. Motor; 24. Support foot; 25. Third connecting piece; 251. Sixth connecting hole; 30. Counting assembly; 31. Counting unit; 311. Counter; 312. Locking piece; 313. Connecting column; 314. Camera; 315. Display screen; 32. Second mounting seat; 321. First through hole; 322. First connecting section; 323. Second connecting section; 3231. Ninth connecting hole; 324. Stud; 325. Nut; 40. Appearance detection assembly; 41. Appearance detection part; 411, scanning head; 412, X-ray device; 4121, second connecting piece; 4122, tenth connecting hole; 413, connecting rod; 42, third mounting seat; 421, first plate section; 422, second plate section; 4221, third through hole; 4222, first connecting hole; 423, third plate section; 424, first connecting piece; 425, second connecting hole; 50, rejecting component; 51, pushing part; 511, fixing section; 512, telescopic section; 52, fourth mounting seat; 521, second through hole; 53, connecting piece; 531, seventh connecting hole; 54, sensing part; 55, fourth connecting piece; 551, eighth connecting hole; 56, pushing plate. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] See also Figures 1 to 8 As shown, the present invention provides a battery cell detection device, which includes: a base 10; a conveying mechanism 20, which is installed on the base 10, and the conveying mechanism 20 includes a conveyor belt 21; a counting component 30, which is located on the conveying path of the conveyor belt 21, and the counting component 30 is used to count the number of lithium batteries conveyed by the conveyor belt 21; an appearance detection component 40; and a rejection component 50, both of which are located on the conveying path of the conveyor belt 21, and the appearance detection component 40 is located between the counting component 30 and the rejection component 50.

[0039] In this embodiment, the conveyor belt 21 is used to convey lithium batteries, and the counting component 30 is located on the conveying path, which can automatically identify and count the number of lithium batteries on the conveyor belt 21, replacing manual counting with automated means, greatly improving production efficiency. The appearance detection component 40 is also located on the conveying path, which can detect the appearance quality of the battery cell during the lithium battery conveying process, and can quickly detect defects on the surface of the battery cell of the lithium battery, such as scratches, pits, pollution, etc., to ensure that only batteries with qualified appearance can enter the subsequent process flow. The rejection component 50 is set at a position after the appearance detection component 40, which can automatically identify and reject the detected battery cells with appearance defects, and timely reject the battery cells with appearance defects to avoid unqualified lithium batteries from flowing into the subsequent process, thereby reducing product safety hazards and subsequent processing costs. In addition, the present application integrates the conveying, counting, appearance detection and rejection functions of lithium batteries into one device, so that the functions of the battery cell detection device are more diversified, which can improve the automation level and production efficiency of the battery cell manufacturing process.

[0040] As can be seen from the above, the present application has the effect of counting the lithium batteries manufactured by setting the counting component 30, which solves the problem that the existing battery cell detection device for lithium battery manufacturing has a relatively simple structure and function when in use, and can only be used for the appearance detection of the battery cell, and cannot count the number of lithium batteries, which is not convenient for rapid statistics. At the same time, by setting the rejection component 50, it has the effect of rejecting defective battery cells, which solves the problem that the existing battery cell detection device for lithium battery manufacturing needs to manually reject the battery cell when it is detected that the battery cell is defective during use, which not only has high labor costs, but also has high labor intensity for personnel.

[0041] In one embodiment of the present invention, the conveying mechanism 20 further includes a first mounting seat 22 , the conveyor belt 21 is mounted on the first mounting seat 22 , and at least one of the counting component 30 , the appearance detection component 40 and the rejection component 50 is detachably mounted on the first mounting seat 22 .

[0042] In this embodiment, the detachable installation means that when a component fails, it can be quickly removed for repair or replacement without pausing the entire production line, thereby reducing the downtime of the production line and ensuring production continuity and efficiency.

[0043] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the conveying mechanism 20 further includes a motor 23, which is fixedly mounted on the first mounting seat 22. The motor 23 is used to drive the conveyor belt 21 to rotate to realize the conveyance of lithium batteries.

[0044] See also Figures 1 to 8As shown, in one embodiment of the present invention, the conveying mechanism 20 also includes a first mounting seat 22, the conveyor belt 21 is installed on the first mounting seat 22, the counting assembly 30 includes a counting part 31 and a second mounting seat 32, the second mounting seat 32 is installed on the first mounting seat 22, and the counting part 31 is detachably installed on the second mounting seat 32.

[0045] In this embodiment, the counting unit 31 is connected to the first mounting seat 22 through the second mounting seat 32 as an independent module, so that the counting component 30 can not only share the first mounting seat 22 with other components (such as the appearance detection component 40 and the rejection component 50), but also the counting unit 31 itself can be easily replaced as needed, thereby improving the overall versatility and modularity of the device. At the same time, the detachable counting unit 31 makes maintenance or upgrading simple and quick. When the counting unit 31 fails, it can be directly removed from the second mounting seat 32 for inspection or replacement, avoiding interference with the entire conveying mechanism 20 or the production line, reducing maintenance costs, and shortening maintenance time.

[0046] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the counting part 31 includes a counter 311 and a locking piece 312, a connecting column 313 is arranged on the top of the counter 311, a first through hole 321 for the connecting column 313 to pass through is arranged on the second mounting seat 32, and the locking piece 312 locks the connecting column 313 on the second mounting seat 32.

[0047] In this embodiment, the counter 311 is fixedly mounted on the second mounting base 32 by locking the connecting column 313 with the locking member 312, without using additional tools or complicated fixing methods, which can improve the installation efficiency. The connecting column 313 cooperates with the first through hole 321 to ensure the accurate positioning of the counter 311 during installation, and the locking effect of the locking member 312 ensures the installation stability of the counter 311.

[0048] See also Figures 1 to 8As shown, in one embodiment of the present invention, the second mounting seat 32 includes two first connecting sections 322, two locking nuts 325 and a second connecting section 323, the two first connecting sections 322 are arranged on the first mounting seat 22 at intervals along the first direction, the second connecting section 323 is connected between the two first connecting sections 322, a stud 324 is provided on the top of the two first connecting sections 322, and two ninth connecting holes 3231 arranged at intervals along the first direction are provided on the second connecting section 323, the two first connecting holes 4222 are arranged in a one-to-one correspondence with the two studs 324, the two studs 324 are inserted into the corresponding first connecting holes 4222, and the two locking nuts 325 are respectively sleeved on the ends of the two studs 324 away from the first connecting section 322 to realize the connection between the second connecting section 323 and the first connecting section 322. The first through hole 321 is located between the two ninth connecting holes 3231 , and one end of the connecting column 313 away from the counter 311 passes through the first through hole 321 . The locking member 312 is sleeved on the protruding end of the connecting column 313 to install the counter 311 on the second mounting base 32 .

[0049] In one embodiment, the locking member 312 is a nut, and the connecting column 313 is provided with threads that can cooperate with the nut threads.

[0050] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the appearance detection component 40 includes an appearance detection unit 41 and a third mounting seat 42, the third mounting seat 42 is mounted on the base 10, the appearance detection unit 41 is mounted on the third mounting seat 42, and the detection end of the appearance detection unit 41 is set toward the conveyor belt 21.

[0051] In this embodiment, the third mounting seat 42 has an avoidance channel allowing the conveyor belt 21 to pass through. By installing the appearance inspection unit 41 on the third mounting seat 42 and ensuring that the inspection end is set toward the conveyor belt 21, accurate inspection of the appearance of the battery cell can be achieved.

[0052] See also Figures 1 to 8 As shown, in one embodiment of the present invention, along a first direction, the conveyor belt 21 has a first side and a second side that are relatively arranged, the third mounting seat 42 includes a first plate segment 421, a second plate segment 422 and a third plate segment 423 that are connected in sequence, the first plate segment 421 is arranged on the first side, the third plate segment 423 is arranged on the second side, the second plate segment 422 is connected between the first plate segment 421 and the third plate segment 423, the second plate segment 422 is located above the conveyor belt 21, the appearance detection unit 41 is installed on the second plate segment 422, the appearance detection unit 41 includes a scanning head 411, the scanning head 411 is located between the second plate segment 422 and the conveyor belt 21, and the scanning head 411 forms a detection end.

[0053] In this embodiment, the appearance inspection unit 41 also includes an X-ray instrument 412, which is used to generate X-rays. The X-rays are penetrating and can penetrate the outer shell of the lithium battery to reveal the internal structure. When the lithium battery moves to the bottom of the scanning head 411 through the conveyor belt, the X-rays emitted by the X-ray instrument 412 will penetrate the lithium battery, and the internal structures with different densities will absorb different amounts of X-rays. At the receiving end of the scanning head 411, an image based on the density difference of the internal structure will be formed. The scanning head 411 includes an image receiver for capturing the image after the X-ray penetration, and converting it into a digital signal, and transmitting it to an external image processing system (such as a computer system). The image processing system will further analyze these images to identify defects inside the lithium battery, such as bubbles, cracks, impurities, etc.

[0054] The first direction refers to the width direction of the conveyor belt 21. The first plate segment 421, the second plate segment 422 and the third plate segment 423 are connected in sequence and enclose an avoidance channel that allows the conveyor belt 21 to pass. The first plate segment 421, the second plate segment 422 and the third plate segment 423 are connected in sequence to form a U-shaped structure, which can efficiently utilize the space above and on both sides of the conveyor belt 21 and save production space. The scanning head 411 is located below the second plate segment 422, which can prevent dust, light and the like in the external environment from interfering with the detection and ensure the detection accuracy.

[0055] See also Figures 1 to 8 As shown, in one embodiment of the present invention, a third through hole 4221 and four first connecting holes 4222 are provided on the second plate segment 422, and the four first connecting holes 4222 are arranged at intervals along the circumferential direction on the outer peripheral side of the third through hole 4221. A connecting rod 413 is provided at the bottom of the X-ray instrument 412, and the scanning head 411 is provided at one end of the connecting rod 413 away from the X-ray instrument 412. Along the first direction, two second connecting pieces 4121 are provided on opposite sides of the X-ray instrument 412, and the two second connecting pieces 4121 on the same side are arranged at intervals along the conveying direction of the conveyor belt 21, and each second connecting piece 4121 is provided with a tenth connecting hole 4122. The four tenth connecting holes 4122 and the four first connecting holes 4222 are arranged one by one. During installation, the connecting rod 413 is passed through the third through hole 4221, the bottom surface of the X-ray device 412 is fitted with the top surface of the second plate segment 422, and the X-ray device 412 is fixedly installed on the second plate segment 422 by passing bolts through the tenth connecting hole 4122 and the first connecting hole 4222 in sequence.

[0056] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the rejecting assembly 50 includes a pushing portion 51 , and the pushing portion 51 is movably disposed along a first direction relative to the conveyor belt 21 .

[0057] In this embodiment, the pusher 51 is designed to be movable so that when a defective cell is detected, the pusher 51 can push the cell away from the normal conveying path, thereby automatically removing the defective cell without manual intervention, thereby improving production efficiency and automation. At the same time, the automatic removal function reduces the demand for manpower, which can reduce the labor intensity of workers and production costs.

[0058] In one embodiment, the pushing portion 51 is an electric telescopic rod.

[0059] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the rejection assembly 50 also includes a fourth mounting seat 52, which is mounted on the base 10 or the first mounting seat 22, and the pushing portion 51 includes a fixed section 511 and a telescopic section 512, the fixed section 511 is fixedly mounted on the fourth mounting seat 52, and the telescopic section 512 is movably arranged on the fixed section 511 along the first direction.

[0060] In this embodiment, the fourth mounting seat 52 is provided to realize the installation of the pusher 51. The telescopic section 512 is movably provided along the first direction relative to the fixed section 511, so that the pusher 51 can accurately perform the rejection operation according to the specific position of the battery cell on the conveyor belt 21, thereby ensuring the accuracy and efficiency of the rejection operation. The movement range of the telescopic section 512 can be adjusted according to actual needs to adapt to battery cells of different sizes or different production line layouts.

[0061] like Figure 6 As shown, in one embodiment of the present invention, a push plate 56 is provided at one end of the telescopic section 512 to facilitate pushing the battery cells away from the normal conveying path, thereby realizing automatic removal of defective battery cells.

[0062] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the rejecting assembly 50 also includes a connecting member 53, which is fixedly mounted on the fixed section 511, and a second through hole 521 for the fixed section 511 to pass through is provided on the fourth mounting seat 52, and the connecting member 53 is fixedly connected to the fourth mounting seat 52.

[0063] Through the above arrangement, the fixing section 511 can be fixedly mounted on the fourth mounting seat 52 .

[0064] See also Figures 1 to 8As shown, in one embodiment of the present invention, along the first direction, two third connection holes 11 are provided on opposite sides of the base 10, and the two third connection holes 11 on the same side are arranged at intervals along the conveying direction of the conveyor belt 21. A group of fourth connection holes 12 are provided at the four corners of the base 10, and the group of fourth connection holes 12 includes four fourth connection holes 12 arranged at intervals along the circumferential direction. Along the first direction, two first connection pieces 424 are provided on opposite sides of the third mounting seat 42, and the two first connection pieces 424 on the same side are arranged at intervals along the conveying direction of the conveyor belt 21. Each first connection piece 424 is provided with a second connection hole 425, and the four second connection holes 425 and the four third connection holes 11 are arranged one by one. During installation, bolts are sequentially passed through the second connection holes 425 and the second connection holes 425 to fix the third mounting seat 42 on the base 10. The first mounting seat 22 has four supporting legs 24, and a third connecting plate 25 is provided at the bottom of each supporting leg 24. Four sixth connecting holes 251 are provided on each third connecting plate 25. The four third connecting plates 25 are arranged in a one-to-one correspondence with the positions of the four groups of fourth connecting holes 12, and the four sixth connecting holes 251 on each third connecting plate 25 are arranged in a one-to-one correspondence with the corresponding four fourth connecting holes 12. During installation, bolts are sequentially passed through the sixth connecting holes 251 and the fourth connecting holes 12 to install the first mounting seat 22 on the base 10.

[0065] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the connecting member 53 is a circular sheet structure, the connecting member 53 is sleeved on the fixed section 511 and fixedly connected to the outer wall surface of the fixed section 511, a plurality of seventh connecting holes 531 are provided on the connecting member 53, and the plurality of seventh connecting holes 531 are arranged at intervals along the circumference of the connecting member 53, a fourth connecting plate 55 is provided at the opposite ends of the bottom of the fourth mounting seat 52, and an eighth connecting hole 551 is provided on the two fourth connecting plates 55, and two fifth connecting holes 221 are provided on the first mounting seat 22, and the two fifth connecting holes 221 and the two eighth connecting holes 551 are arranged in a one-to-one correspondence. During installation, bolts are sequentially passed through the eighth connecting hole 551 and the fifth connecting hole 221 to fix the fourth mounting seat 52 on the first mounting seat 22.

[0066] In one embodiment, the first connection hole, the second connection hole, the third connection hole, the fourth connection hole, the fifth connection hole, the sixth connection hole, the seventh connection hole, the eighth connection hole, the ninth connection hole and the tenth connection hole are all threaded holes.

[0067] See also Figures 1 to 8 As shown, in one embodiment of the present invention, the rejecting assembly 50 further includes a sensing portion 54 , which is mounted on the fourth mounting seat 52 , and is used to detect whether the lithium battery reaches the pushing range of the pushing portion 51 .

[0068] In this embodiment, the setting of the sensing unit 54 makes the automatic control of the rejection component 50 more accurate. It can monitor the position of the battery cell in real time to ensure that the push unit 51 is activated only when the battery cell enters the push range, thereby avoiding invalid rejection and misoperation. In addition, through the real-time detection of the sensing unit 54, the push unit 51 can respond immediately. Once the battery cell enters the push range, the rejection operation is performed without waiting, which reduces the rejection delay and improves the rejection efficiency of the production line.

[0069] See also Figures 1 to 8 As shown, in one embodiment of the present invention, a camera 314 is provided in the middle of the bottom surface of the counter 311, a display screen 315 is provided on the side wall of the counter 311, and the appearance detection component 40 also includes a computer, and the X-ray device 412 and the scanning head 411 are communicatively connected to the computer.

[0070] In this embodiment, the counter 311 is communicatively connected with the camera 314. When the lithium battery moves to the bottom of the camera 314 through the conveyor belt, the camera 314 will automatically capture the image of the lithium battery. The image captured by the camera 314 will be transmitted to the image processing module of the counter 311 in real time. The image processing module extracts the characteristic information of the lithium battery from the image, such as size, shape, position, etc. Based on the image processing, the counter 311 will automatically identify the lithium battery in each image to achieve counting.

[0071] The working process of the battery cell detection device of the present application is as follows: first, the lithium battery is placed on the conveyor belt 21, the motor 23 is started and drives the conveyor belt 21 to rotate, so as to realize the transportation of the lithium battery. When the lithium battery passes under the counting component 30, it will be photographed by the camera 314, so that the counter 311 can count and display the number on the display screen 315. When the lithium battery passes under the appearance detection component 40, the scanning head 411 at the bottom of the X-ray device 412 scans the lithium battery, and the scanned image will be displayed on the computer monitor, which can be viewed on the monitor, so as to view the defects inside the lithium battery, such as bubbles, impurities, cracks, etc. When a defect is detected in the battery cell inside the lithium battery, the telescopic section 512 is moved along the first direction away from the fixed section 511, thereby driving the push plate 56 to push the defective lithium battery away from the normal conveying path.

[0072] It should be noted that defective lithium batteries can be subsequently transported to a rework and repair station.

[0073] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: a conveying mechanism, a counting component, an appearance detection component and a rejection component are provided. The counting component is located on the conveying path, and can automatically identify and count the number of lithium batteries on the conveyor belt. The appearance detection component is also located on the conveying path, and can detect the appearance quality of the battery cells during the lithium battery conveying process, and can quickly detect defects on the surface of the battery cells of the lithium battery, such as scratches, pits, pollution, etc. The rejection component is arranged at a position after the appearance detection component, and can automatically identify and reject the battery cells with detected appearance defects, and timely reject the battery cells with appearance defects to avoid unqualified lithium batteries from flowing into subsequent processes, thereby reducing product safety hazards and subsequent processing costs. The present application integrates the conveying, counting, appearance detection and rejection functions of lithium batteries into one device, so that the functions of the battery cell detection device are more diversified, which can improve the automation level and production efficiency of the battery cell manufacturing process.

[0074] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0075] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery cell detection device, characterized in that: include: Base (10); A conveying mechanism (20) is installed on the base (10), and the conveying mechanism (20) comprises a conveying belt (21); A counting component (30) is located on the conveying path of the conveyor belt (21), and the counting component (30) is used to count the number of lithium batteries conveyed by the conveyor belt (21); an appearance detection component (40); and A rejecting component (50), wherein the appearance detection component (40) and the rejecting component (50) are both located on a conveying path of the conveyor belt (21), and the appearance detection component (40) is located between the counting component (30) and the rejecting component (50).

2. The battery cell detection device according to claim 1, characterized in that: The conveying mechanism (20) further comprises a first mounting seat (22), the conveying belt (21) is mounted on the first mounting seat (22), and at least one of the counting component (30), the appearance detection component (40) and the rejection component (50) is detachably mounted on the first mounting seat (22).

3. The battery cell detection device according to claim 1, characterized in that: The conveying mechanism (20) further comprises a first mounting seat (22), the conveying belt (21) being mounted on the first mounting seat (22), the counting assembly (30) comprising a counting portion (31) and a second mounting seat (32), the second mounting seat (32) being mounted on the first mounting seat (22), and the counting portion (31) being detachably mounted on the second mounting seat (32).

4. The battery cell detection device according to claim 3, characterized in that: The counting part (31) comprises a counter (311) and a locking member (312); a connecting column (313) is arranged on the top of the counter (311); a first through hole (321) for the connecting column (313) to pass through is arranged on the second mounting seat (32); and the locking member (312) locks the connecting column (313) on the second mounting seat (32).

5. The battery cell detection device according to claim 1, characterized in that: The appearance detection assembly (40) comprises an appearance detection unit (41) and a third mounting seat (42), wherein the third mounting seat (42) is mounted on the base (10), the appearance detection unit (41) is mounted on the third mounting seat (42), and the detection end of the appearance detection unit (41) is arranged toward the conveyor belt (21).

6. The battery cell detection device according to claim 5, characterized in that: Along a first direction, the conveyor belt (21) has a first side and a second side that are arranged opposite to each other. The third mounting seat (42) includes a first plate segment (421), a second plate segment (422) and a third plate segment (423) that are connected in sequence. The first plate segment (421) is arranged on the first side, and the third plate segment (423) is arranged on the second side. The second plate segment (422) is connected between the first plate segment (421) and the third plate segment (423). The second plate segment (422) is located above the conveyor belt (21). The appearance detection unit (41) is installed on the second plate segment (422). The appearance detection unit (41) includes a scanning head (411). The scanning head (411) is located between the second plate segment (422) and the conveyor belt (21). The scanning head (411) forms the detection end.

7. The battery cell detection device according to any one of claims 2 to 4, characterized in that: The rejecting assembly (50) comprises a pushing portion (51), and the pushing portion (51) is movably arranged along a first direction relative to the conveyor belt (21).

8. The battery cell detection device according to claim 7, characterized in that: The rejecting assembly (50) further comprises a fourth mounting seat (52), wherein the fourth mounting seat (52) is mounted on the base (10) or the first mounting seat (22), and the pushing portion (51) comprises a fixed section (511) and a telescopic section (512), wherein the fixed section (511) is fixedly mounted on the fourth mounting seat (52), and the telescopic section (512) is movably arranged on the fixed section (511) along the first direction.

9. The battery cell detection device according to claim 8, characterized in that: The rejecting assembly (50) further comprises a connecting piece (53), wherein the connecting piece (53) is fixedly mounted on the fixing section (511), and the fourth mounting seat (52) is provided with a second through hole (521) for the fixing section (511) to pass through, and the connecting piece (53) is fixedly connected to the fourth mounting seat (52).

10. The battery cell detection device according to claim 8, characterized in that: The rejection assembly (50) further comprises a sensing portion (54), wherein the sensing portion (54) is mounted on the fourth mounting seat (52), and the sensing portion (54) is used to detect whether the lithium battery has reached the pushing range of the pushing portion (51).

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