Lithium ion battery shell deformation monitoring device and method thereof

Abstract

The invention relates to the technical field of battery shell deformation monitoring, in particular to a lithium ion battery shell deformation monitoring device and a method thereof.The lithium ion battery shell deformation monitoring device comprises a conveying frame and a plurality of fixing frames arranged on the upper end face of the conveying frame. Through the arrangement of the overturning assembly, the monitored lithium ion battery shell can be automatically rotated and conveyed to the next conveying frame provided with the FBG sensor for secondary deformation monitoring, and the mode replaces traditional manual work and a mechanical arm when the lithium ion battery shell is overturned; the problem that when the lithium ion battery shell is turned over from the lithium ion battery shell, the impact force generated when the lithium ion battery shell freely falls to the conveying frame from the distance height position between the lithium ion battery shell and the conveying frame affects deformation of the lithium ion battery shell, and therefore the accuracy of deformation monitoring of the lithium ion battery shell is affected is solved. And dust on the surface of the turned lithium ion battery shell can be removed, so that the monitored lithium ion battery shell is kept clean and tidy.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery shell deformation monitoring, and in particular relates to a lithium ion battery shell deformation monitoring device and method. Background Art

[0002] A lithium-ion battery case deformation monitoring device is a device used to detect whether a lithium-ion battery case has deformed (such as expanding or contracting). This device is important for evaluating the safety, performance, and life of the battery.

[0003] At present, the commonly used lithium-ion battery case deformation monitoring adopts fiber Bragg grating (FBG) sensor measurement and three-dimensional structured light sensor measurement; the fiber Bragg grating (FBG) sensor measurement and three-dimensional structured light sensor measurement will use manual or robotic arm to flip the lithium-ion battery case at the end of monitoring the monitoring surface of the lithium-ion battery case. When the lithium-ion battery case is flipped over, a certain distance will be generated between the lithium-ion battery case and the conveyor belt that transports the lithium-ion battery case. At this time, when the manual or robotic arm completes the flipping of the lithium-ion battery case and releases the lithium-ion battery case, the lithium-ion battery case will fall freely from the height of the distance between the lithium-ion battery case and the conveyor belt when flipping, and fall onto the conveyor belt that transports the lithium-ion battery case. The impact force applied to the lithium-ion battery case when falling will cause deformation, which will affect the accuracy of the lithium-ion battery case deformation monitoring.

[0004] To this end, we propose a lithium-ion battery shell deformation monitoring device and method. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a lithium ion battery housing deformation monitoring device and method.

[0006] To achieve the above-mentioned objectives, the present invention proposes a lithium-ion battery casing deformation monitoring device, comprising a conveying rack and a fixing rack arranged on the upper end surface of the conveying rack, wherein the fixing racks are provided in plurality, an FBG sensor is provided at the top inner side of the fixing rack, two conveying racks are provided, and a flip assembly is provided between the two conveying racks, the flip assembly comprising a flip part, a driving part and a cleaning limit part, the flip part is located between the two conveying racks, and the driving part and the cleaning limit part are both provided on the flip part.

[0007] Preferably, the flipping member includes a support platform arranged between the two conveying racks and two fixed rings arranged above the support platform, the two fixed rings respectively correspond to the positions of the two conveying racks, one of the fixed rings is provided with a gear ring, the upper end surface of the support platform is provided with a first drive motor through the frame body, the output end of the first drive motor is provided with a transmission tooth, the positions of the transmission tooth and the gear ring correspond to each other, and the transmission tooth is meshed with the gear ring.

[0008] Preferably, two mounting brackets are provided between the two fixed rings, and the two mounting brackets are placed up and down, and the two ends of the mounting brackets are respectively connected to the fixed ring and the gear ring, and a plurality of conveying wheels are rotatably provided on the inner side of the mounting bracket, and a support base is provided on both sides of the fixed ring, and an opening is provided at the top of the support base, and a roller is rotatably provided on the inner side of the opening, and a limiting opening is provided on the roller, and the fixed ring is clamped in the limiting opening on the rollers on both sides of the fixed ring.

[0009] Preferably, the driving member includes a driving box and a first driving gear arranged on a mounting frame, the first driving gear is connected to a conveying wheel on the inner side of the mounting frame, a first chain plate is provided at one end of the conveying wheel, the first chain plate is rotatably connected to the mounting frame, a chain is connected between two adjacent first chain plates, a second driving motor and a second driving gear are provided on the driving box, the second driving gear is rotatably connected to the driving box through a driving shaft, and the second driving gear is meshed with the first driving gear.

[0010] Preferably, a driving wheel disc and a driven wheel disc are rotatably arranged inside the driving box, the driven wheel disc is attached to a side wall of the driving wheel disc, the output end of the second driving motor is connected to the driving wheel disc, and the driven wheel disc is connected to the driving shaft on the second driving gear, and a clamping block is provided on the driving wheel disc, and a plurality of clamping grooves are provided on the driven wheel disc, and the clamping block on the driving wheel disc is clamped in a clamping groove on the driven wheel disc, and a limiting disc is provided on the driving wheel disc, and a limiting arc groove is provided on the driven disc, and the limiting arc groove is located between two adjacent clamping grooves on the driven disc, and the limiting disc is tangent to a limiting arc groove on the driven disc.

[0011] Preferably, the cleaning limit member includes a bidirectional screw rotatably arranged on the inner side of the mounting frame and a limit plate arranged between the two mounting frames, wherein the bidirectional screws are provided in plurality, the bidirectional screws are located between two adjacent conveying wheels on the inner side of the mounting frame, a sliding rod is provided below the bidirectional screw, a movable plate is threadedly connected to the bidirectional screw, a cleaning brush is provided on the movable plate, a second chain disk is provided at one end of the bidirectional screw, the second chain disk is rotatably connected to the mounting frame, the second chain disk is located between two adjacent mounting frames on the mounting frame, and the second chain disk is engaged with the chain connecting the two adjacent mounting frames.

[0012] Preferably, a sinking groove is provided on the limit plate, a coil spring is provided at the bottom end of the inner side of the sinking groove, a limit clamping plate is inserted into the inner side of the sinking groove, one end of the coil spring inside the sinking groove is connected to the limit clamping plate inserted into the inner side of the sinking groove, chamfers are provided at both ends of the wall surface of the limit clamping plate away from the limit plate, and a limit component and an automatic start-stop component are provided on the upper end surface of the support platform.

[0013] Preferably, the limiting assembly includes a limiting groove opened on the fixing ring and a first fixed vertical plate arranged on one side of the fixing ring, the first fixed vertical plate is arranged on the upper end surface of the support platform, and a rotating wheel is rotatably arranged on the wall surface of the first fixed vertical plate opposite to the fixing ring, and the rotating wheel is rollingly connected to the limiting groove on the fixing ring.

[0014] Preferably, the automatic start-stop component includes a fixing plate arranged on a fixing ring, the fixing rings of the two fixing rings are distributed up and down, a second fixing vertical plate is arranged on one side of the fixing plate, a fixing block is arranged on the second fixing vertical plate, and a socket is opened on the wall surface on the opposite side of the two fixing blocks, an automatic start-stop button and a reset spring are arranged at the bottom end of the inner side of the socket, the reset spring is sleeved on the automatic start-stop button, the automatic start-stop button is electrically connected to the second drive motor, an insert block is inserted in the socket, and one end of the reset spring in the socket is connected to the insert block in the socket.

[0015] Lithium-ion battery shell deformation monitoring method:

[0016] a. Place the lithium-ion battery shell to be monitored on a conveyor rack and transport it toward another conveyor rack. During the transport process, the lithium-ion battery shell passes through a flip assembly, flips 180 degrees, and is then transported to another conveyor rack. During the process of unloading the lithium-ion battery shell on the conveyor rack, the FBG sensor on the conveyor rack monitors the deformation of the lithium-ion battery shell;

[0017] b. During the flipping process, the limit assembly limits the position of the fixed ring;

[0018] c. When the flip assembly flips to 180 degrees, the fixed plate on the fixed ring will press against one end of the plug block set on the second fixed vertical plate of the support platform. The plug block is squeezed and pressed against the automatic start-stop button on the inner side of the socket on the fixed block. The automatic start-stop button will turn off the second drive motor through an electrical signal.

[0019] The present invention provides a lithium-ion battery housing deformation monitoring device and method thereof, which can bring the following beneficial effects:

[0020] 1. The setting of the flipping assembly can not only rotate the monitored lithium-ion battery shell by itself and convey it to the next conveyor rack equipped with FBG sensors for secondary deformation monitoring, but also replace the traditional manual and robotic arm flipping of the lithium-ion battery shell. The impact force of the lithium-ion battery shell falling from the height between the lithium-ion battery shell and the conveyor rack when the lithium-ion battery shell is flipped affects the deformation of the lithium-ion battery shell, thereby affecting the accuracy of the lithium-ion battery shell deformation monitoring. In addition, the surface of the flipped lithium-ion battery shell can be dusted, so that the monitored lithium-ion battery shell can be kept clean and tidy.

[0021] 2. The driving member is provided to intermittently drive the lithium-ion battery casings between the two mounting racks for conveyance, so that the conveyance and turnover of the lithium-ion battery casings between the two mounting racks can be carried out separately, thereby avoiding the problem of motion conflict caused by the simultaneous conveyance and turnover of the lithium-ion battery casings;

[0022] 3. The second chain disc can be used to convert the driving force of the conveyor wheel into the driving force of the bidirectional screw. The bidirectional screw, slide rod, and movable plate enable the cleaning brush to clean the dust on the surface of the lithium-ion battery housing between the two mounting racks back and forth. The limiting plate, coil spring, and limiting clamping plate can not only limit the position of the lithium-ion battery housing between the two mounting racks, but also prevent the lithium-ion battery housing from being separated from between the two mounting racks when flipping.

[0023] 4. The position of the fixed ring can be restricted by setting the limit assembly, thus preventing the fixed ring from detaching from the rollers on both sides of the fixed ring during rotation;

[0024] 5. The maximum value of the lithium-ion battery shell flipping can be directly controlled by setting the automatic start-stop component, so as to avoid the lithium-ion battery shell flipping too much, resulting in the lower end surface of the lithium-ion battery shell after flipping being not at the same level with the upper end surface of the conveyor rack, resulting in the lithium-ion battery shell on the flip component being unable to be transported to the next conveyor rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the present invention and constitute a part 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 improper limitations on the present invention.

[0026] In the attached figure:

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0028] Figure 2This is a second viewing angle of the overall structural diagram of the present invention;

[0029] Figure 3 This is a first perspective view of the flip assembly of the present invention;

[0030] Figure 4 This is a second viewing angle of the three-dimensional diagram of the flip assembly of the present invention;

[0031] Figure 5 This is a first perspective view of the disassembled diagram of the limit assembly and the fixing ring of the present invention;

[0032] Figure 6 This is a second perspective of the exploded view of the limit assembly and the fixing ring of the present invention;

[0033] Figure 7 This is a disassembled diagram of the limit plate and the limit clamping plate of the present invention;

[0034] Figure 8 This is a disassembled diagram of the mounting frame and the movable plate of the present invention;

[0035] Figure 9 An exploded view of the drive box of the present invention;

[0036] Figure 10 This is a disassembled diagram of the fixing block and the inserting block of the present invention.

[0037] In the picture:

[0038] 1. Conveying rack; 2. Fixing rack; 3. FBG sensor; 4. Flipping assembly; 41. Flipping member; 411. Support platform; 412. Fixing ring; 413. Gear ring; 414. Mounting rack; 415. Conveying wheel; 416. Support base; 417. Roller; 418. First driving motor; 419. Transmission gear; 42. Driving member; 421. Driving box; 422. First driving gear; 423. Second driving motor; 424. Second driving gear; 425. First chain plate; 426. Chain; 427. Driving wheel plate; 428. Driven plate; 429. Engaging block; 4210. Engaging slot; 4211. Limiting disc; 4212. Limiting arc groove; 43. Cleaning limiting part; 431. Bidirectional screw; 432. Sliding rod; 433. Moving plate; 434. Cleaning brush; 435. Second chain plate; 436. Limiting plate; 437. Sinking groove; 438. Coil spring; 439. Limiting clamping plate; 4310. Chamfer; 5. Limiting assembly; 51. Limiting groove; 52. First fixed vertical plate; 53. Rotating wheel; 6. Automatic start-stop assembly; 61. Fixed plate; 62. Second fixed vertical plate; 63. Fixed block; 64. Socket; 65. Automatic start-stop button; 66. Reset spring; 67. Insert block. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0040] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0042] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

[0044] like Figures 1 to 10As shown, an embodiment of the present invention proposes a lithium-ion battery shell deformation monitoring device, including a conveying rack 1 and a fixing rack 2 arranged on the upper end surface of the conveying rack 1, wherein the fixing rack 2 is provided in plurality, and an FBG sensor 3 is provided at the top inner side of the fixing rack 2. There are two conveying racks 1, and a flip assembly 4 is provided between the two conveying racks 1. The flip assembly 4 includes a flip part 41, a driving part 42 and a cleaning limit part 43. The flip part 41 is located between the two conveying racks 1, and the driving part 42 and the cleaning limit part 43 are both provided on the flip part 41.

[0045] By setting up the flipping assembly 4, not only can the monitored lithium-ion battery shell be rotated by itself and conveyed to the next conveying rack 1 provided with the FBG sensor 3 for secondary deformation monitoring, this method replaces the problem of traditional manual and robotic arm flipping of the lithium-ion battery shell, in which the impact force of the lithium-ion battery shell falling from the height of the distance between the lithium-ion battery shell and the conveying rack 1 when the lithium-ion battery shell is flipped affects the deformation of the lithium-ion battery shell, thereby affecting the accuracy of the lithium-ion battery shell deformation monitoring, but also the surface of the flipped lithium-ion battery shell can be dusted, so that the monitored lithium-ion battery shell is kept clean and tidy.

[0046] The flip member 41 includes a support platform 411 arranged between the two conveying racks 1 and two fixed rings 412 arranged above the support platform 411. The two fixed rings 412 correspond to the positions of the two conveying racks 1 respectively. A gear ring 413 is provided on one of the fixed rings 412. The upper end surface of the support platform 411 is provided with a first drive motor 418 through the frame body. The output end of the first drive motor 418 is provided with a transmission tooth 419. The positions of the transmission tooth 419 and the gear ring 413 correspond to each other, and the transmission tooth 419 is meshed with the gear ring 413. Two mounting frames 414 are provided between the two fixing rings 412. The two mounting frames 414 are placed one above the other. The two ends of the mounting frames 414 are respectively connected to the fixing ring 412 and the gear ring 413. A plurality of conveying wheels 415 are rotatably provided on the inner side of the mounting frames 414. A support base 416 is provided on both sides of the fixing ring 412. An opening is provided at the top of the support base 416. A roller 417 is rotatably provided on the inner side of the opening. A limiting opening is provided on the roller 417. The fixing ring 412 is clamped in the limiting opening on the rollers 417 on both sides of the fixing ring 412.

[0047] The support base 416 and the roller 417 are provided to support the fixed ring 412 and can also rotate the fixed ring 412. The transmission gear 419, the gear ring 413, and the first drive motor 418 are provided to provide kinetic energy for the rotation of the fixed ring 412. The two mounting frames 414 and the conveying wheels 415 thereon are used to clamp and convey the lithium-ion battery shell to be monitored.

[0048] The driving member 42 includes a driving box 421 and a first driving gear 422 arranged on a mounting frame 414. The first driving gear 422 is connected to a conveying wheel 415 inside the mounting frame 414. A first chain plate 425 is provided at one end of the conveying wheel 415. The first chain plate 425 is rotatably connected to the mounting frame 414. A chain 426 is connected between two adjacent first chain plates 425. A second driving motor 423 and a second driving gear 424 are provided on the driving box 421. The second driving gear 424 is rotatably connected to the driving box 421 through a driving shaft, and the second driving gear 424 is meshed with the first driving gear 422. The driving box 421 is provided with a driving wheel disc 427 and a driven disc 428 for rotation inside. The driven disc 428 is attached to a side wall of the driving wheel disc 427. The output end of the second driving motor 423 is connected to the driving wheel disc 427. The driven disc 428 is connected to the driving shaft on the second driving gear 424. The driving wheel disc 427 is provided with a snap-fit ​​block 429. The driven disc 428 is provided with a plurality of snap-fit ​​grooves 4210. The locking block 429 on the driving wheel 427 is locked in a locking groove 4210 on the driven disk 428. A limiting circular disc 4211 is provided on the driving wheel 427. A limiting arc groove 4212 is provided on the driven disk 428. The limiting arc groove 4212 is located between two adjacent locking grooves 4210 on the driven disk 428. The limiting circular disc 4211 is tangent to a limiting arc groove 4212 on the driven disk 428.

[0049] The drive member 42 is provided to intermittently drive the lithium-ion battery housing between the two mounting racks 414 for transportation, so that the transportation and flipping of the lithium-ion battery housing between the two mounting racks 414 can be carried out separately, thereby avoiding the problem of motion conflict caused by the simultaneous transportation and flipping of the lithium-ion battery housing.

[0050] The cleaning limit member 43 includes a bidirectional screw 431 rotatably arranged on the inner side of the mounting frame 414 and a limit plate 436 arranged between the two mounting frames 414. The bidirectional screw 431 is provided in plurality, and the bidirectional screw 431 is located between two adjacent conveying wheels 415 on the inner side of the mounting frame 414. A sliding rod 432 is provided below the bidirectional screw 431. A movable plate 433 is threadedly connected to the bidirectional screw 431, and a cleaning brush 434 is provided on the movable plate 433. One end of the bidirectional screw 431 is provided with a second chain disk 435, and the second chain disk 435 is rotatably connected to the mounting frame 414. The second chain disk 435 is located between two adjacent mounting frames 414 on the mounting frame 414, and the second chain disk 435 is engaged with the chain 426 connected between the two adjacent mounting frames 414. A sinking groove 437 is provided on the limit plate 436, and a coil spring 438 is provided at the bottom end of the inner side of the sinking groove 437. A limit clamping plate 439 is inserted into the inner side of the sinking groove 437. One end of the coil spring 438 inside the sinking groove 437 is connected to the limit clamping plate 439 inserted into the inner side of the sinking groove 437. Chamfers 4310 are provided at both ends of the wall surface of the limit clamping plate 439 away from the limit plate 436. The upper end surface of the support platform 411 is provided with a limit component 5 and an automatic start-stop component 6.

[0051] The coil spring 438 is provided to buffer the impact force of the collision on the limit clamping plate 439, and the chamfer 4310 serves to guide the transportation of the lithium-ion battery shell.

[0052] By setting the second chain disk 435, the power driven by the conveying wheel 415 can be converted into the power for rotating the bidirectional screw 431. The setting of the bidirectional screw 431, the sliding rod 432, and the movable plate 433 enables the cleaning brush 434 to clean the dust on the surface of the lithium-ion battery shell located between the two mounting racks 414 back and forth; by setting the limiting plate 436, the coil spring 438, and the limiting clamping plate 439, not only can the position of the lithium-ion battery shell located between the two mounting racks 414 be limited, but also the problem of the lithium-ion battery shell being separated from the two mounting racks 414 when flipping can be avoided.

[0053] In this embodiment, the lithium-ion battery shell to be monitored is placed on the conveying rack 1, and the conveying rack 1 conveys the lithium-ion battery shell to the flip assembly 4. When the lithium-ion battery shell on the conveying rack 1 passes through the FBG sensor 3, the FBG sensor 3 monitors the deformation of the lithium-ion battery shell. If there is any abnormality, it can be manually removed. If there is no abnormality, the lithium-ion battery shell will pass through the fixing ring 412 and be conveyed between the two mounting racks 414. The lithium-ion battery shell is seated on the conveying wheel 415 located on the lower mounting rack 414, and the conveying wheels 415 on the two mounting racks 414 are both attached to the upper and lower side walls of the lithium-ion battery shell. At the same time, the second drive motor 423 is started, and the second drive motor 423 drives the drive The driven wheel 427 and the engaging block 429 on the driving wheel 427 rotate, and the engaging block 429 on the driving wheel 427 rotates into an engaging groove 4210 on the driven wheel 428. The engaging block 429 drives the driven wheel 428 to rotate, and the driven wheel 428 drives the second driving gear 424 to rotate through the driving shaft, and the second driving gear 424 drives the first driving gear 422 to rotate, and the first driving gear 422 drives the conveying wheel 415 connected thereto to rotate, and the conveying wheel 415 drives the first chain plate 425 connected thereto to rotate, and the first chain plate 425 drives the other conveying wheels 415 to rotate through the chain 426. The rotation of the conveying wheel 415 drives the lithium-ion battery casing between the two mounting racks 414 to be transported, and the lithium When the lithium-ion battery shell passes through the limit clamping plate 439 during the transportation process, the lithium-ion battery shell will be centered under the guidance of the chamfer 4310 on the limit clamping plate 439. When the lithium-ion battery shell is transported to the middle of the upper end surface of the mounting rack 414, the engaging block 429 on the driving wheel 427 rotates out from a engaging groove 4210 on the driven disk 428. At this time, the lithium-ion battery shell on the mounting rack 414 stops being transported. At this time, the first driving motor 418 is started, and the first driving motor 418 drives the transmission gear 419 to rotate. The transmission gear 419 drives the fixed ring 412 and the lithium-ion battery shell between the two mounting racks 414 to rotate through the gear ring 413. When the fixed ring 412 flips to 180 degrees, , turn off the first drive motor 418, and then the engaging block 429 on the driving wheel 427 rotates again into an engaging groove 4210 on the driven disk 428, so that the lithium-ion battery shell on the mounting rack 414 is transported from the inside of the flip assembly 4 to the next conveying rack 1, and the lithium-ion battery shell on the conveying rack 1 will be transported again. When the lithium-ion battery shell passes through the FBG sensor 3 on the conveying rack 1, the FBG sensor 3 monitors the deformation of the lithium-ion battery shell. Finally, the above method is repeated to monitor the deformation of the lithium-ion battery shell. It should be noted that the rotation direction of the first drive motor 418 is alternately forward and reverse, so that the limit of the two rotation angles can be limited by the two automatic start-stop components 6.

[0054] The limiting assembly 5 includes a limiting groove 51 opened on the fixing ring 412 and a first fixed vertical plate 52 arranged on one side of the fixing ring 412. The first fixed vertical plate 52 is arranged on the upper end surface of the support platform 411. A rotating wheel 53 is rotatably arranged on the wall surface of the first fixed vertical plate 52 opposite to the fixing ring 412. The rotating wheel 53 is rollingly connected in the limiting groove 51 on the fixing ring 412.

[0055] The position of the fixing ring 412 can be limited by the setting of the limiting component 5, thereby preventing the fixing ring 412 from being separated from the rollers 417 on both sides of the fixing ring 412 during the rotation process.

[0056] The automatic start-stop component 6 includes a fixing plate 61 arranged on a fixing ring 412, and the fixing rings 412 of the two fixing rings 412 are distributed up and down. A second fixing vertical plate 62 is provided on one side of the fixing plate 61, and a fixing block 63 is provided on the second fixing vertical plate 62. A socket 64 is provided on the wall surface on the opposite side of the two fixing blocks 63, and an automatic start-stop button 65 and a reset spring 66 are provided at the bottom end of the inner side of the socket 64. The reset spring 66 is sleeved on the automatic start-stop button 65, and the automatic start-stop button 65 is electrically connected to the second drive motor 423. A plug-in block 67 is inserted in the socket 64, and one end of the reset spring 66 in the socket 64 is connected to the plug-in block 67 in the socket 64.

[0057] By setting the automatic start-stop component 6, the maximum value of the lithium-ion battery shell flipping can be directly controlled, so as to avoid the lithium-ion battery shell flipping too much, resulting in the lower end surface of the flipped lithium-ion battery shell and the upper end surface of the conveying rack 1 not being at the same level, causing the lithium-ion battery shell on the flipping component 4 to be unable to be conveyed to the next conveying rack 1.

[0058] Lithium-ion battery shell deformation monitoring method:

[0059] a. Place the lithium-ion battery casing to be monitored on a conveyor rack 1 and convey it toward another conveyor rack 1. During the conveying process, the lithium-ion battery casing passes through a flip assembly 4, is flipped 180 degrees, and then conveyed to another conveyor rack 1. During the process of the lithium-ion battery casing on the conveyor rack 1 being unloaded from the conveyor rack 1, the FBG sensor 3 on the conveyor rack 1 monitors the deformation of the lithium-ion battery casing;

[0060] b. During the turning process of the turning assembly 4, the limiting assembly 5 limits the position of the fixing ring 412;

[0061] c. When the flip assembly 4 flips to 180 degrees, the fixed plate 61 on the fixed ring 412 will press against one end of the plug block 67 provided on the second fixed vertical plate 62 on the support platform 411. The plug block 67 is squeezed and pressed against the automatic start-stop button 65 on the inner side of the socket 64 on the fixed block 63. The automatic start-stop button 65 will turn off the second drive motor 423 through an electrical signal.

[0062] Working principle:

[0063] The lithium-ion battery shell to be monitored is placed on the conveying rack 1, and the conveying rack 1 conveys the lithium-ion battery shell to the flip assembly 4. When the lithium-ion battery shell on the conveying rack 1 passes through the FBG sensor 3, the FBG sensor 3 monitors the deformation of the lithium-ion battery shell. If there is any abnormality, it can be manually removed. If there is no abnormality, the lithium-ion battery shell will pass through the fixing ring 412 and be conveyed between the two mounting racks 414. The lithium-ion battery shell is seated on the conveying wheel 415 located on the lower mounting rack 414, and the conveying wheels 415 on the two mounting racks 414 are both attached to the upper and lower side walls of the lithium-ion battery shell. At the same time, the second drive motor 423 is started, and the second drive motor 423 drives the drive wheel 427 and the drive The engaging block 429 on the driven wheel 427 rotates, and the engaging block 429 on the driving wheel 427 rotates into an engaging groove 4210 on the driven plate 428. The engaging block 429 drives the driven plate 428 to rotate, and the driven plate 428 drives the second driving gear 424 to rotate through the driving shaft, and the second driving gear 424 drives the first driving gear 422 to rotate, and the first driving gear 422 drives the conveying wheel 415 connected thereto to rotate, and the conveying wheel 415 drives the first chain plate 425 connected thereto to rotate, and the first chain plate 425 drives the other conveying wheels 415 to rotate through the chain 426. The rotation of the conveying wheel 415 drives the lithium-ion battery casing between the two mounting frames 414 to be transported, and the lithium-ion battery casing is being transported. When the lithium-ion battery shell passes through the limit clamping plate 439 during the process, the lithium-ion battery shell will be centered under the guidance of the chamfer 4310 on the limit clamping plate 439. When the lithium-ion battery shell is conveyed to the middle of the upper end surface of the mounting rack 414, the engaging block 429 on the driving wheel 427 rotates out of a engaging groove 4210 on the driven disk 428. At this time, the lithium-ion battery shell on the mounting rack 414 stops being conveyed. At this time, the first driving motor 418 is started, and the first driving motor 418 drives the transmission gear 419 to rotate. The transmission gear 419 drives the fixed ring 412 and the lithium-ion battery shell between the two mounting racks 414 to rotate through the gear ring 413. When the fixed ring 412 is flipped to 180 degrees, if the width of the lithium-ion battery shell The angle is less than the distance between the two limit clamping plates 439. When the lithium-ion battery shell rotates, the lithium-ion battery shell will collide with the limit clamping plate 439 in the rotation direction of the lithium-ion battery shell. The limit clamping plate 439 is forced to squeeze the coil spring 438 at the bottom end of the inner side of the sinking groove 437. The coil spring 438 is compressed under force, thereby alleviating the impact force of the lithium-ion battery shell hitting the limit clamping plate 439. The fixing plate 61 on the fixing ring 412 presses on the plug block 67 on the second fixed vertical plate 62. The plug block 67 moves toward the automatic start-stop button 65 inside the socket 64 on the fixing block 63. When the plug block 67 presses on the automatic start-stop button 65 inside the socket 64, the automatic start-stop button 65 is pressed to turn off the first drive motor 418.At this time, the engaging block 429 on the driving wheel 427 rotates again into an engaging groove 4210 on the driven disk 428, thereby transporting the lithium-ion battery housing on the mounting rack 414 from the inside of the flip assembly 4 to the next conveyor rack 1. The lithium-ion battery housing on the conveyor rack 1 will be transported again. When the lithium-ion battery housing passes by the FBG sensor 3 on the conveyor rack 1, the FBG sensor 3 monitors the deformation of the lithium-ion battery housing. Finally, the above method is repeated to monitor the deformation of the lithium-ion battery housing. It should be noted that the rotation direction of the first driving motor 418 is alternately forward and reverse, so the two rotation angles can be limited by the two automatic start-stop components 6.

[0064] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0065] The foregoing is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A lithium-ion battery housing deformation monitoring device, comprising a conveying frame (1) and a fixing frame (2) arranged on the upper end surface of the conveying frame (1), wherein the fixing frame (2) is provided with a plurality of FBG sensors (3) arranged on the inner top end of the fixing frame (2), characterized in that: Two conveying racks (1) are provided, and a flip assembly (4) is provided between the two conveying racks (1). The flip assembly (4) comprises a flip member (41), a driving member (42) and a cleaning limit member (43). The flip member (41) is located between the two conveying racks (1), and the driving member (42) and the cleaning limit member (43) are both provided on the flip member (41).

2. The lithium-ion battery housing deformation monitoring device according to claim 1, characterized in that: The flip member (41) includes a support platform (411) arranged between two conveying racks (1) and two fixed rings (412) arranged above the support platform (411), the two fixed rings (412) respectively corresponding to the positions of the two conveying racks (1), a gear ring (413) is arranged on one of the fixed rings (412), the upper end surface of the support platform (411) is provided with a first driving motor (418) through the frame body, the output end of the first driving motor (418) is provided with a transmission tooth (419), the position of the transmission tooth (419) corresponds to that of the gear ring (413), and the transmission tooth (419) is meshed with the gear ring (413).

3. The lithium-ion battery housing deformation monitoring device according to claim 2, characterized in that: Two mounting frames (414) are provided between the two fixing rings (412). The two mounting frames (414) are placed one above the other. The two ends of the mounting frames (414) are respectively connected to the fixing ring (412) and the gear ring (413). A plurality of conveying wheels (415) are rotatably provided inside the mounting frames (414). Support bases (416) are provided on both sides of the fixing ring (412). An opening is provided at the top end of the support base (416). A roller (417) is rotatably provided inside the opening. A limiting opening is provided on the roller (417). The fixing ring (412) is clamped in the limiting openings on the rollers (417) on both sides of the fixing ring (412).

4. The lithium-ion battery housing deformation monitoring device according to claim 3, characterized in that: The driving member (42) comprises a driving box (421) and a first driving gear (422) arranged on a mounting frame (414); the first driving gear (422) is connected to a conveying wheel (415) inside the mounting frame (414); one end of each conveying wheel (415) is provided with a first chain disk (425); the first chain disk (425) is rotatably connected to the mounting frame (414); a chain (426) is connected between two adjacent first chain disks (425); a second driving motor (423) and a second driving gear (424) are provided on the driving box (421); the second driving gear (424) is rotatably connected to the driving box (421) via a driving shaft, and the second driving gear (424) is meshed with the first driving gear (422).

5. The lithium-ion battery housing deformation monitoring device according to claim 4, characterized in that: A driving wheel disc (427) and a driven disc (428) are rotatably provided inside the driving box (421). The driven disc (428) is attached to a side wall of the driving wheel disc (427). The output end of the second driving motor (423) is connected to the driving wheel disc (427). The driven disc (428) is connected to the driving shaft on the second driving gear (424). A locking block (429) is provided on the driving wheel disc (427). A plurality of locking grooves (4210) are provided on the driven disc (428). The engaging block (429) on the driving wheel disc (427) is engaged in an engaging groove (4210) on the driven wheel disc (428); a limiting circular disc (4211) is provided on the driving wheel disc (427); a limiting arcuate groove (4212) is provided on the driven wheel disc (428); the limiting arcuate groove (4212) is located between two adjacent engaging grooves (4210) on the driven wheel disc (428); and the limiting circular disc (4211) is tangent to a limiting arcuate groove (4212) on the driven wheel disc (428).

6. The lithium-ion battery housing deformation monitoring device according to claim 4, characterized in that: The cleaning limiter (43) comprises a bidirectional screw (431) rotatably arranged on the inner side of the mounting frame (414) and a limit plate (436) arranged between the two mounting frames (414). A plurality of bidirectional screws (431) are provided. The bidirectional screws (431) are located between two adjacent conveying wheels (415) on the inner side of the mounting frame (414). A sliding rod (432) is provided below the bidirectional screw (431). A movable rod (432) is connected to the bidirectional screw (431) by thread. A movable plate (433) is provided on the movable plate (433), a cleaning brush (434) is provided on the movable plate (433), a second chain disc (435) is provided at one end of the bidirectional screw (431), the second chain disc (435) is rotatably connected to the mounting frame (414), the second chain disc (435) is located between two adjacent mounting frames (414) on the mounting frame (414), and the second chain disc (435) is engaged with a chain (426) connecting the two adjacent mounting frames (414).

7. The lithium-ion battery housing deformation monitoring device according to claim 6, characterized in that: The limit plate (436) is provided with a sinking groove (437), a coil spring (438) is provided at the bottom end of the inner side of the sinking groove (437), a limit clamping plate (439) is inserted into the inner side of the sinking groove (437), one end of the coil spring (438) inside the sinking groove (437) is connected to the limit clamping plate (439) inserted into the inner side of the sinking groove (437), and chamfers (4310) are provided at both ends of the wall surface of the limit clamping plate (439) away from the limit plate (436). The upper end surface of the support platform (411) is provided with a limit component (5) and an automatic start-stop component (6).

8. The lithium-ion battery housing deformation monitoring device according to claim 2, characterized in that: The limiting assembly (5) comprises a limiting groove (51) provided on the fixing ring (412) and a first fixing vertical plate (52) provided on one side of the fixing ring (412); the first fixing vertical plate (52) is provided on the upper end surface of the support platform (411); a rotating wheel (53) is rotatably provided on a wall surface of the first fixing vertical plate (52) opposite to the fixing ring (412); the rotating wheel (53) is rollingly connected in the limiting groove (51) on the fixing ring (412).

9. The lithium-ion battery housing deformation monitoring device according to claim 4, characterized in that: The automatic start-stop assembly (6) includes a fixed plate (61) arranged on a fixed ring (412), the fixed rings (412) of the two fixed rings (412) are distributed up and down, a second fixed vertical plate (62) is arranged on one side of the fixed plate (61), a fixed block (63) is arranged on the second fixed vertical plate (62), a socket (64) is opened on the wall surface of the two fixed blocks (63) on the opposite side, an automatic start-stop button (65) and a return spring (66) are arranged at the bottom end of the inner side of the socket (64), the return spring (66) is sleeved on the automatic start-stop button (65), the automatic start-stop button (65) is electrically connected to the second drive motor (423), an insert block (67) is inserted in the socket (64), and one end of the return spring (66) in the socket (64) is connected to the insert block (67) in the socket (64).

10. A method for monitoring deformation of a lithium-ion battery casing, implemented based on the vacuum coating equipment according to any one of claims 1 to 9, characterized in that: a. placing a lithium-ion battery shell to be monitored on a conveying rack (1) and conveying it toward another conveying rack (1); during the conveying process, the lithium-ion battery shell is turned 180 degrees by a turning assembly (4) and then conveyed to another conveying rack (1); during the process of the lithium-ion battery shell on the conveying rack (1) being output from the conveying rack (1), the FBG sensor (3) on the conveying rack (1) monitors the deformation of the lithium-ion battery shell; b. During the turning process of the turning assembly (4), the limiting assembly (5) limits the position of the fixing ring (412); c. When the flip assembly (4) flips to 180 degrees, the fixed plate (61) on the fixed ring (412) will press against one end of the plug block (67) provided on the second fixed vertical plate (62) on the support platform (411). The plug block (67) is pressed against the automatic start / stop button (65) on the inner side of the socket (64) on the fixed block (63). The automatic start / stop button (65) will turn off the second drive motor (423) through an electrical signal.

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