Battery cell packaging control system based on position detection

Abstract

The invention provides a battery cell packaging control system based on position detection, which comprises an aluminum film cavity, a position adjusting module, a detection module, a battery cell transferring module, a transportation module and a heat-conducting silicone grease coating module, and is characterized in that the transportation module is used for transporting a battery cell; the detection module is used for detecting the groove width of the aluminum film cavity; the heat-conducting silicone grease coating module is used for coating the aluminum film cavity on the coating station of the position adjusting module with heat-conducting silicone grease according to the groove width data of the detection module; according to the invention, the detection module is matched with the heat-conducting silicone grease coating module, so that the heat-conducting silicone grease coating module coats heat-conducting silicone grease in the aluminum film cavity according to detection data of the detection module, and it is ensured that the cell formed by transfer has good heat-conducting property.

Description

Technical Field

[0001] This invention relates to the field of battery cell structure and manufacturing, and in particular to a battery cell packaging control system based on position detection. Background Technology

[0002] When a bare battery cell is inserted into an aluminum foil, the aluminum foil must first be stamped to create a groove similar to the bare battery cell, which is used to hold the bare battery cell.

[0003] For example, CN113130967A discloses a cell packaging mechanism, a cell packaging logistics line, and a cell folding and transfer method. In the production process of some soft-pack batteries, the cells need to be placed in a pre-punched aluminum film. After folding the aluminum film, it needs to be processed sequentially by a packaging platform, including top sealing, side sealing, and corner sealing. In the above processing, a robotic arm is generally used to transport the cells between the front and rear processing platforms. Each transport requires the robotic arm to repeatedly pick up and put down the cells, which makes it easy for the placement angle and processing horizontal plane of the cells to deviate. The stable state of the cells after folding is destroyed, resulting in poor uniformity and poor packaging effect of the cells, and reducing the cell packaging time, thereby reducing equipment capacity.

[0004] This invention was made to address the common problems in the field, such as inaccurate positioning, positional deviation, easy damage during packaging, poor intelligence, and low efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of current methods by proposing a cell packaging control system based on position detection.

[0006] To overcome the shortcomings of the prior art, the present invention adopts the following technical solution:

[0007] A cell packaging control system based on position detection is disclosed. The cell packaging control system includes an aluminum cavity, and the cell packaging system further includes a position adjustment module, a detection module, a cell transfer module, a transport module, and a thermal grease application module.

[0008] The transport module is used to transport the battery cells;

[0009] The detection module is used to detect the groove width of the aluminum film cavity;

[0010] The thermal grease coating module applies thermal grease to the aluminum film cavity at the coating station of the position adjustment module based on the groove width data of the detection module.

[0011] Specifically, the battery cells on the transport module are clamped and transferred to the aluminum film cavity coated with thermally conductive silicone grease by the battery cell transfer module;

[0012] The cell transfer module, based on the detection data from the detection module, clamps and transfers the cell into the aluminum cavity coated with thermally conductive silicone grease at the mounting station of the position adjustment module;

[0013] The position adjustment module is used to adjust the position of several aluminum cavities so that each aluminum cavity can first complete the application of thermal grease at the coating station, and then adjust its position to the mounting station for battery cell mounting.

[0014] The detection module includes a data acquisition unit, a storage unit, and an analysis unit. The data acquisition unit acquires image data of the aluminum cavity in the mounting station of the position adjustment module. The storage unit stores the detection data acquired by the data acquisition unit. The analysis unit analyzes the groove width data of the aluminum cavity based on the image data acquired by the data acquisition unit.

[0015] The number of acquisition units includes at least two, which are respectively set above the mounting station of the position adjustment module and the coating station of the position adjustment module, so as to acquire image data of the aluminum film cavity at the mounting station of the position adjustment module and the image data of the aluminum film cavity at the coating station of the position adjustment module, respectively.

[0016] The acquisition unit includes an acquisition probe and a support base, the support base being used to support the acquisition probe; the acquisition probe acquires image data of the aluminum diaphragm cavity;

[0017] The analysis unit acquires and processes image data of the aluminum cavity measured by the acquisition probe above the coating station of the position adjustment module. The processing includes grayscale conversion and edge extraction to form multiple edge pixels of the aluminum cavity. Two sets of edge pixel coordinates, A1B1 and A2B2, are obtained from these multiple edge pixels.

[0018] Among them, the selected edge pixel A1 and edge pixel B1 must satisfy the minimum distance between the line segment A1B1 formed by the two to actually reflect the actual groove width data in the length direction of the aluminum film cavity, and the selected edge pixel A2 and edge pixel B2 must satisfy the minimum distance between the line segment A2B2 formed by the two to actually reflect the actual groove width data in the width direction of the aluminum film cavity.

[0019] Select the pixel coordinates A1(x1, y1) and B1(x2, y2) of two edge points located on opposite sides of the acquired aluminum cavity image. The line connecting the two edge points A1(x1, y1) and B1(x2, y2) must be parallel to the length direction of the aluminum cavity. The distance between the two edge points A1(x1, y1) and B1(x2, y2) is defined as the slot width distance Distant1 in the length direction. Distant1 is calculated according to the following formula:

[0020]

[0021] Select two edge point pixel coordinates A2(x3, y3) and B2(x4, y4) located on opposite sides of the acquired aluminum cavity image. The line connecting the two edge point coordinates A2(x3, y3) and B2(x4, y4) must be parallel to the width direction of the aluminum cavity. The distance between the two edge point coordinates A2(x3, y3) and B2(x4, y4) is defined as the slot width distance Distant2 in the width direction. The slot width distance Distant2 in the width direction is calculated according to the following formula:

[0022]

[0023] The analysis unit calculates the coating path length S of the thermal grease application module based on Distant1 and Distant2:

[0024] S=d·(n-1)+D max ·n

[0025] In the formula, D max The working width of each coating row of the thermal grease coating module is defined as the width of each D-coating row applied by the thermal grease coating module in the aluminum cavity. max The working width is one line, satisfying: D max =Distant2-2Δx, where Δx is the safe distance between the thermal grease coating module and the sidewall of the aluminum cavity during coating, d is the spacing between adjacent coating rows of the thermal grease coating module in the aluminum cavity, and n is the number of rows in the coating path, satisfying:

[0026]

[0027] The thermal grease coating module coats the aluminum film cavity with thermal grease according to the coating path length S.

[0028] Optionally, the position adjustment module includes a rotating unit, a support platform, and several limiting units, wherein the support platform is used to support the rotating unit and the limiting units;

[0029] Each of the aforementioned limiting units is used to clamp the aluminum film cavity and is disposed on the rotating unit;

[0030] The rotating unit is used to adjust the position of the limiting unit;

[0031] The rotating unit includes a rotating plate, a rotating drive mechanism, and an angle detection component. The rotating plate is used to adjust the position of the limiting unit.

[0032] The rotation drive mechanism is located on the side of the rotating plate away from the limiting unit, and drives the rotating plate to rotate along its own axis. The angle detection component detects the rotation angle of the rotating plate.

[0033] Optionally, the transport module includes a transport unit and a protection unit. The transport unit transports the battery cell, and the protection unit restricts the battery cell on the transport unit to keep the battery cell in an upright position.

[0034] The transport unit includes a transport frame, a transport belt, a transport drive mechanism, and a plurality of transport rollers. The transport frame is used to support the transport belt, the transport drive mechanism, and each of the transport rollers. Each transport roller is mounted on the transport frame, and both ends of the transport roller are hinged to the transport frame.

[0035] The conveyor belt is nested on each of the conveyor rollers to form a conveyor section. The conveyor drive mechanism is driven to the conveyor section and conveys the battery cell under the drive of the conveyor drive mechanism.

[0036] Optionally, the cell transfer module includes a clamping unit and a transfer unit, wherein the transfer unit is used to move the position of the clamping unit, and the clamping unit is used to clamp the cell;

[0037] The clamping unit is disposed on the transfer unit, and the clamped battery cell is transferred to the aluminum film cavity through the transfer unit.

[0038] Optionally, the clamping unit includes a set of clamping heads, a clamping seat, a pressure detection element, and a clamping drive mechanism. The clamping seat is used to support the set of clamping heads and the clamping drive mechanism. One end of the set of clamping heads is hinged to the clamping seat and drivenly connected to the clamping drive mechanism.

[0039] The pressure detection element is installed on a set of clamping heads and detects the clamping force between the set of clamping heads and the battery cell.

[0040] Optionally, the limiting unit includes a limiting cavity and a position adjustment component, the position adjustment component being used to clamp aluminum film cavities of different sizes, and the position adjustment component being concealed in the limiting cavity;

[0041] The position adjustment component includes a first limiting seat, a second limiting seat, a first sliding rail, a second sliding rail, a first sliding drive mechanism, a second sliding drive mechanism, and a plurality of position markers.

[0042] The first limiting seat and the second limiting seat are respectively disposed on the first sliding rail and the second sliding rail, and each of the position markers is respectively disposed on the first sliding rail and the second sliding rail, and is distributed at equal intervals along the length direction of the first sliding rail and the second sliding rail;

[0043] The first sliding drive mechanism is disposed on the first limiting seat and drives the first limiting seat to slide along the track direction of the first sliding track;

[0044] The second sliding drive mechanism is disposed on the second limiting seat and drives the second limiting seat to slide along the second sliding track.

[0045] Optionally, the protection unit includes a set of protective rods, a distance detection element, a support frame, an adjustment drive mechanism, and several adjustment rods. The set of protective rods is used to protect the battery cell; the distance detection element is used to detect the distance between the set of protective rods; and the support frame is used to support the protective rods, adjustment rods, and adjustment drive mechanism.

[0046] One end of each of the adjusting rods is vertically and fixedly connected to one side wall of the protective rod, and the other end of each of the adjusting rods is connected to the support frame;

[0047] The adjustment drive mechanism is driven to each of the adjustment rods so that the adjustment rods can extend and retract.

[0048] Optionally, the thermal grease coating module includes a coating head, a lifting component, an offset component, and a grease supply component. The coating head is used to coat thermal grease; the lifting component is used to adjust the height of the coating head; the offset component is used to adjust the position of the lifting component and the coating head; and the grease supply component is used to supply thermal grease to the coating head.

[0049] The beneficial effects achieved by this invention are:

[0050] 1. By cooperating with the detection module and the thermal grease coating module, the thermal grease coating module coats the aluminum film cavity with thermal grease according to the detection data of the detection module, ensuring that the battery pack formed by packaging has good thermal conductivity;

[0051] 2. Through the cooperation of the detection module and the cell transfer module, the cell transfer module can accurately transfer the cell into the aluminum film cavity according to the detection data of the detection module, thereby improving the efficiency of the entire cell transfer process.

[0052] 3. Through the cooperation of the position adjustment module, the cell transfer module, and the thermal grease coating module, the thermal grease coating module first coats the aluminum cavity with thermal grease, and then the cell transfer module transfers the cell into the aluminum cavity for packaging, thereby improving the efficiency of cell packaging production.

[0053] 4. The positions of the lifting member and the coating head are adjusted by the offset member to achieve dynamic adjustment of the coating trajectory in the aluminum film cavity;

[0054] 5. The aluminum cavity is limited by the position adjustment module, and after the battery cell is placed in the aluminum cavity, the aluminum cavity is sealed by the packaging module to form a battery pack;

[0055] 6. Through the cooperation of the encapsulation module and the position adjustment module, the aluminum film cavity containing the battery cell and the thermal grease is encapsulated after the battery cell is placed in the aluminum film cavity, thereby improving the overall encapsulation efficiency and accuracy. At the same time, the quality of the outer wall of the encapsulated battery pack is also protected during the encapsulation process. Attached Figure Description

[0056] The invention will be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but rather the emphasis is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0057] Figure 1 This is a schematic diagram of the overall block shape of the present invention.

[0058] Figure 2 This is a schematic diagram of the structure of the cell transfer module and the transport module of the present invention.

[0059] Figure 3 This is a cross-sectional schematic diagram of the battery cell and the aluminum film cavity of the present invention.

[0060] Figure 4 This is a partial cross-sectional schematic diagram of the thermal grease coating module and the aluminum diaphragm cavity of the present invention.

[0061] Figure 5 This is a schematic diagram illustrating the application scenario of the coating path of the thermal grease coating module of the present invention.

[0062] Figure 6 This is a schematic diagram illustrating the application scenario of the packaging unit of the present invention for aluminum cavity packaging.

[0063] Figure 7 This is a top view of the packaging unit of the present invention.

[0064] Figure 8 This is a partial cross-sectional schematic diagram of the rotating plate of the present invention.

[0065] Figure 9 This is a top view of the rotating unit of the present invention.

[0066] Figure 10 This is a top view of the limiting unit of the present invention.

[0067] Explanation of reference numerals: 1. Support platform; 2. Conveyor belt; 3. Support frame; 4. Adjusting rod; 5. Protective rod; 6. Battery cell; 7. Transfer track; 8. Clamping unit; 9. Aluminum film cavity; 10. Thermal grease; 11. Lifting rod; 12. Coating head; 13. Lifting base; 14. Offset track; 15. Offset rod; 16. First sliding track; 17. Encapsulation track; 18. Second adjusting rod; 19. First adjusting rod; 20. Encapsulation seat; 21. Rolling wheel; 22. Encapsulation laser head; 23. Second sliding track; 24. Limiting cavity; 25. Lifting plate; 26. Lifting rod; 27. Rotating plate; 28. Rotation drive mechanism; 29. ​​First limiting seat; 30. Second limiting seat; 31. Acquisition unit; 32. Loading station; 33. Limiting unit. Detailed Implementation

[0068] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. Furthermore, the accompanying drawings of the present invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated beforehand. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of protection of the present invention.

[0069] Example 1.

[0070] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, this embodiment provides a cell packaging control system based on position detection. The cell packaging control system includes an aluminum cavity 9, and the cell packaging system further includes a position adjustment module, a detection module, a cell transfer module, a transportation module, and a thermal grease coating module.

[0071] The transport module is used to transport the battery cell 6;

[0072] The aluminum film cavity 9 referred to in this invention is formed by stamping aluminum film, and the aluminum film cavity is used to store each battery cell. This is well known to those skilled in the art and will not be described in detail here.

[0073] The detection module is used to detect the groove width of the aluminum membrane cavity 9;

[0074] The thermal grease coating module applies thermal grease 10 to the aluminum film cavity on the coating station of the position adjustment module according to the groove width data of the detection module.

[0075] Specifically, the battery cells on the transport module are clamped and transferred to the aluminum film cavity coated with thermally conductive silicone grease by the battery cell transfer module;

[0076] The cell transfer module, based on the detection data from the detection module, clamps and transfers the cell 6 into the aluminum cavity 9 coated with thermally conductive silicone grease at the mounting station of the position adjustment module;

[0077] The position adjustment module is used to adjust the position of several aluminum cavities so that each aluminum cavity can first complete the application of thermal grease at the coating station, and then adjust its position to the mounting station for battery cell mounting.

[0078] In addition, the cell packaging control system also includes a processor, which is connected to the position adjustment module, detection module, cell transfer module, transportation module, and thermal grease coating module respectively, and performs centralized control of the position adjustment module, detection module, cell transfer module, transportation module, and thermal grease coating module based on the processor;

[0079] Meanwhile, the detection module works in conjunction with the thermal grease coating module, so that the thermal grease coating module coats the aluminum cavity 9 with thermal grease according to the detection data of the detection module, ensuring that the battery pack formed by packaging has good thermal conductivity.

[0080] Through the cooperation of the detection module and the cell transfer module, the cell transfer module can accurately transfer the cell 6 into the aluminum cavity 9 according to the detection data of the detection module, thereby improving the efficiency of the entire cell 6 transfer.

[0081] By cooperating with the position adjustment module, the cell transfer module, and the thermal grease coating module, the thermal grease coating module and the cell transfer module can transfer the cell 6 and coat the thermal grease 10 on multiple aluminum cavities 9, thereby improving production efficiency.

[0082] In addition, the transport module also cooperates with the cell transfer module to supply the cell 6 to the cell transfer module and transfer the cell 6 to the aluminum cavity 9.

[0083] The transportation module includes a transportation unit and a protection unit. The transportation unit transports the battery cell 6, and the protection unit restricts the battery cell 6 on the transportation unit to keep the battery cell 6 in an upright position.

[0084] The transport unit includes a transport frame, a transport belt 2, a transport drive mechanism, and a plurality of transport rollers. The transport frame is used to support the transport belt 2, the transport drive mechanism, and each of the transport rollers. Each transport roller is mounted on the transport frame, and both ends of the transport roller are hinged to the transport frame.

[0085] The conveyor belt 2 is nested on each of the conveyor rollers to form a conveyor section. The conveyor drive mechanism is driven to the conveyor section and conveys the battery cell 6 under the drive of the conveyor drive mechanism.

[0086] At the same time, the loading station cooperates with the battery cell transfer module 2 through the conveyor belt, so that the battery cell transfer module transfers the battery cell 6 on the conveyor belt 2 to the aluminum cavity 9 of the loading station 32;

[0087] It is worth noting that the aluminum diaphragm cavity 9 placed in the position adjustment module is compatible with the model of the transported battery cell 6;

[0088] In this embodiment, the protective unit is disposed on both sides of the conveyor belt 2 in the transport direction to protect the battery cell 6;

[0089] Optionally, the protective unit includes a set of protective rods 5, a distance detection element, a support frame 3, an adjustment drive mechanism, and several adjustment rods 4. The set of protective rods 5 is used to protect the battery cell 6; the distance detection element is used to detect the distance between the set of protective rods 5; the support frame 3 is used to support the protective rods 5, the adjustment rods 4, and the adjustment drive mechanism; one end of each adjustment rod 4 is vertically fixedly connected to one side wall of the protective rod 5, and the other end of each adjustment rod 4 is connected to the support frame 3; the adjustment drive mechanism is drivenly connected to each adjustment rod 4 so that the adjustment rods 4 can extend and retract.

[0090] The position of a set of protective rods 5 is adjusted by adjusting rod 4 so that the conveyor belt 2 can protect the battery cells 6 of different thicknesses or specifications to prevent the battery cells 6 from shifting or tipping over.

[0091] When the distance between a group of the protective rods 5 is adjusted, the distance detection device feeds back the distance between the group of the protective rods 5 to the processor, so that the processor adjusts the distance between the protective rods 5 according to the thickness parameters of the processed battery cell 6;

[0092] In addition, during the transportation of the battery cell 6, the transportation unit needs to cooperate with the battery cell transfer module to transfer the battery cell 6 into the aluminum film cavity 9. That is, the transportation speed of the transportation unit is matched with the transfer speed of the battery cell transfer module to ensure the efficiency of battery cell 6 supply and battery cell 6 transfer.

[0093] Optionally, the cell transfer module includes a clamping unit 8 and a transfer unit, wherein the transfer unit is used to move the position of the clamping unit, and the clamping unit 8 is used to clamp the cell 6;

[0094] The clamping unit 8 is disposed on the transfer unit, and the clamped battery cell 6 is transferred to the aluminum film cavity 9 through the transfer unit;

[0095] The transfer unit includes a transfer track 7, a transfer seat, a moving drive mechanism, and several positioning detection components. The moving track is arranged across the transport belt 2 of the transport unit and above the loading station 32, and cooperates with the clamping unit 8 to transfer the battery cell 6 from the transport belt 2 to the aluminum film cavity on the loading station of the position adjustment module.

[0096] The loading station 32 is located on the side of the position adjustment module near the conveyor belt, such as... Figure 1 As shown in the thickened outline, the coating station is located on the side of the position adjustment module away from the conveyor belt.

[0097] The transfer seat is slidably connected to the transfer track 7 and slides along the direction of the transfer track 7;

[0098] In addition, the moving drive mechanism is disposed on the transfer seat and drives the transfer seat to slide along the track direction of the transfer track 7;

[0099] Each of the positioning detection components is disposed on the transfer track 7 and is distributed at equal intervals along the length direction of the transfer track 7;

[0100] Meanwhile, the transfer unit also includes an identification component, which is used to identify each of the positioning detection elements to identify the location of the transfer seat; wherein, the identification component is disposed on the transfer seat and faces the side of each of the positioning detection elements to identify each of the positioning detection elements;

[0101] The identification component includes an identification probe and a hidden cavity. The hidden cavity is disposed on the transfer seat and is used to place the identification probe. The identification probe is used to identify each of the positioning detection components and transmit the identified data to the processor.

[0102] The moving drive mechanism, the transfer seat, the identification component, and the processor form a closed loop. When the transfer seat is not in the set position, the processor controls the moving drive mechanism to drive the transfer seat to slide along the transfer track 7. At the same time, the identification probe of the identification component collects the positioning detection component in real time. If the collected positioning detection component matches the set position, the processor controls the moving drive mechanism to stop driving the transfer seat and make the transfer seat stay in the current position.

[0103] The transfer unit also includes a telescopic component, which is used to adjust the height distance between the clamping unit 8 and the transfer seat to accommodate the clamping of battery cells 6 of different heights.

[0104] The telescopic component includes a telescopic rod, a telescopic drive mechanism, and a height detection device. The height detection device is used to detect the lifting height of the telescopic rod, and the telescopic rod is configured to be telescopic. The telescopic drive mechanism is driven to the telescopic rod, and the telescopic rod performs telescopic operation under the drive of the telescopic drive mechanism.

[0105] One end of the telescopic rod is connected to the transfer seat, and the other end of the telescopic rod is connected to the clamping unit 8;

[0106] Optionally, the clamping unit 8 includes a set of clamping heads, a clamping seat, a pressure detection element, and a clamping drive mechanism. The clamping seat is used to support the set of clamping heads and the clamping drive mechanism. One end of the set of clamping heads is hinged to the clamping seat and drivenly connected to the clamping drive mechanism. The other end of the telescopic rod is connected to the clamping seat of the clamping unit 8.

[0107] The pressure detection element is installed on a set of clamping heads and detects the clamping force between the set of clamping heads and the battery cell 6.

[0108] Meanwhile, during the process of controlling the clamping drive mechanism to clamp the battery cell 6 with a set of clamping heads, the processor dynamically adjusts the clamping force of the clamping drive mechanism based on the detection value of the pressure detection element to prevent the clamping heads from damaging the battery cell 6.

[0109] Through the cooperation of the transfer unit and the clamping unit 8, the battery cell 6 can be transferred from the transport module to the aluminum film cavity on the mounting station of the position adjustment module, thereby improving the efficiency of battery cell transfer.

[0110] The detection module is located above the loading station to detect the width of the aluminum film cavity 9 groove in the loading station;

[0111] The detection module includes a data acquisition unit, a storage unit, and an analysis unit. The data acquisition unit acquires image data of the aluminum cavity 9 in the mounting station of the position adjustment module. The storage unit stores the detection data acquired by the data acquisition unit. The analysis unit analyzes the groove width data of the aluminum cavity based on the image data acquired by the data acquisition unit. On the one hand, it analyzes the groove width data of the aluminum cavity 9 in the coating station to cooperate with the thermally conductive silicone coating module to coat the bottom wall of the aluminum cavity 9 with thermally conductive silicone. On the other hand, it analyzes the groove width data of the aluminum cavity in the mounting station to confirm the position of the battery cell transfer module in the aluminum cavity in the mounting station.

[0112] The number of acquisition units includes at least two, which are respectively set above the mounting station 32 of the position adjustment module and the coating station of the position adjustment module, so as to acquire image data of the aluminum film cavity on the mounting station of the position adjustment module and the image data of the aluminum film cavity on the coating station.

[0113] The acquisition unit includes an acquisition probe and a support base, the support base being used to support the acquisition probe; the acquisition probe acquires image data from the aluminum diaphragm cavity 9;

[0114] The analysis unit acquires and processes image data of the aluminum cavity measured by the acquisition probe above the coating station of the position adjustment module. The processing includes grayscale conversion and edge extraction to form multiple edge pixels of the aluminum cavity. Two sets of edge pixel coordinates, A1B1 and A2B2, are obtained from these multiple edge pixels.

[0115] Among them, the selected edge pixel A1 and edge pixel B1 must satisfy the minimum distance between the line segment A1B1 formed by the two to actually reflect the actual groove width data in the length direction of the aluminum film cavity, and the selected edge pixel A2 and edge pixel B2 must satisfy the minimum distance between the line segment A2B2 formed by the two to actually reflect the actual groove width data in the width direction of the aluminum film cavity.

[0116] Select the pixel coordinates A1(x1, y1) and B1(x2, y2) of two edge points located on opposite sides of the acquired aluminum cavity image. The line connecting the two edge points A1(x1, y1) and B1(x2, y2) must be parallel to the length direction of the aluminum cavity. The distance between the two edge points A1(x1, y1) and B1(x2, y2) is defined as the slot width distance Distant1 in the length direction. Distant1 is calculated according to the following formula:

[0117]

[0118] Select the pixel coordinates A2(x3, y3) and B2(x4, y4) of two edge points located on opposite sides of the acquired aluminum cavity image. The line connecting the two edge points A2(x3, y3) and B2(x4, y4) must be parallel to the width direction of the aluminum cavity. The distance between the two edge points A2(x3, y3) and B2(x4, y4) is defined as the slot width distance Distant2 in the width direction. Distant2 is calculated according to the following formula:

[0119]

[0120] The analysis unit calculates the coating path length S of the thermal grease application module based on Distant1 and Distant2:

[0121] S=d·(n-1)+D max ·n

[0122] In the formula, D max The working width of each coating row of the thermal grease coating module is defined as the width of each D-coating row applied by the thermal grease coating module in the aluminum cavity. max The working width is one line, satisfying: Dmax =Distant2-2Δx, where Δx is the safe distance between the thermal grease coating module and the sidewall of the aluminum cavity during coating, d is the spacing between adjacent coating rows of the thermal grease coating module in the aluminum cavity, and n is the number of rows in the coating path, satisfying:

[0123]

[0124] The thermal grease coating module coats the aluminum film cavity with thermal grease according to the coating path length S.

[0125] It is worth noting that the length of the slot width data is equal to Distant1, and the width of the slot width data is equal to...

[0126] Distant2;

[0127] Meanwhile, the thermal grease coating module's coating path within the aluminum cavity is laid out according to a serpentine circuit pattern; for example... Figure 5 As shown;

[0128] Once the length and width of the slots in the aluminum film cavity are obtained, the working width D of each row of the thermal grease coating module can be obtained. max The number of rows coated (n), the spacing (d) between adjacent rows coated by the thermal grease coating module in the aluminum cavity, and the safe distance (Δx) between the thermal grease coating module and the sidewall of the aluminum cavity during coating (Δx is a parameter set by the operator and is a known value), combined with, for example... Figure 5 The accurate coating path length S can be obtained from the "serpentine" route shown.

[0129] Meanwhile, it should be noted that during the coating process, the offset component and the processor need to work together to achieve precise control of the coating path. How to control the movement of the coating head is well known to those skilled in the art, so it will not be described in detail in this embodiment.

[0130] In addition, the analysis unit acquires the image data of the aluminum cavity measured by the acquisition probe of the acquisition unit above the loading station 32, and processes the image data, wherein the processing includes grayscale conversion and edge extraction to obtain the pixel coordinates C0, D0 of the edge points of the aluminum cavity on the loading station 32.

[0131] Select two edge points C0(x5, y5) and D0(x6, y6) located on opposite sides of the acquired image. The line connecting these two edge points C0(x5, y5) and D0(x6, y6) must be parallel to the length of the aluminum cavity. The distance between these two edge points along their length is W0, and the length of the aluminum cavity is equal to W0. W0 is calculated using the following formula:

[0132]

[0133] In addition, after each time the cell transfer unit places a cell into the aluminum cavity, the analysis unit re-acquires the image data of the transferred cell in the aluminum cavity measured by the acquisition probe of the acquisition unit above the loading station 32, and processes the image data. This processing includes grayscale conversion and edge extraction to obtain the edge pixel coordinates C of the unloaded cell area in the aluminum cavity on the loading station 32. i D i Select the pixel coordinates C of two edge points on the acquired image. i (x u y u ), D i (x v y v ), where the coordinates of the two edge points C i (x u y u ), D i (x v y v The line connecting the two edge points (C) must be parallel to the length direction of the aluminum film cavity. i (x u y u ), D i (x v y v The distance is W. i Among them, W i Calculate according to the following formula:

[0134]

[0135] The analysis unit calculates the movement L of the transfer seat based on W, satisfying the following:

[0136]

[0137] In the formula, k is the inherent distance from the conveyor belt to the loading station, Δd is the thickness of each battery cell, m is the number of battery cells already loaded in the aluminum cavity at the loading station, and "[]" is the rounding symbol, so that the number of battery cells that can be loaded in the aluminum cavity is an integer number;

[0138] The analysis unit transmits the movement amount L of the transfer station to the processor and controls the movement amount of the transfer station based on the movement amount.

[0139] The thermal grease application module applies the coating path data and follows a serpentine pattern (e.g., ...). Figure 5 The coating is carried out in the aluminum cavity 9 according to the direction shown.

[0140] It is worth noting that the aluminum cavity 9 in the position adjustment module needs to be coated with thermal grease 10 before the battery cell 6 can be placed in the aluminum cavity 9 through the battery cell transfer module.

[0141] Optionally, the thermal grease application module includes a coating head 12, a lifting member, an offset member, and a grease supply member. The coating head 12 is used to apply thermal grease; the lifting member is used to adjust the height of the coating head 12; the offset member is used to adjust the position of the lifting member and the coating head 12; and the grease supply member is used to supply thermal grease to the coating head 12.

[0142] The lifting component includes a lifting base 13, a lifting detection element, a lifting rod 11, and a lifting drive mechanism. One end of the lifting rod 11 is connected to the lifting base 13, and the other end of the lifting rod 11 is connected to the coating head 12. The lifting detection element is used to detect the lifting height of the lifting rod 11. The lifting drive mechanism is driven by the lifting rod 11 so that the lifting rod 11 can perform a lifting action under the drive of the lifting drive mechanism.

[0143] The offset component includes an offset track 14, a sliding seat, a sliding drive mechanism, an offset rod 15, and an offset drive mechanism. The sliding seat is slidably connected to the offset track 14. One end of the offset rod 15 is connected to the outer wall of the lifting base 13, and the other end of the offset rod 15 is connected to the sliding seat.

[0144] The offset driving mechanism is driven to the offset rod 15 and drives the offset rod 15 to extend and retract, so that the position of the lifting base 13 can be adjusted.

[0145] The sliding drive mechanism is disposed on the sliding seat and drives the sliding seat to slide along the track direction of the offset track 14;

[0146] In addition, the offset component also includes an offset detection element, a sensing probe, and several stroke detection elements, each of which is distributed at equal intervals along the length direction of the offset track 14;

[0147] The sensing probe is used to sense the stroke detection element to detect each stroke detection element on the sliding track; wherein, the sensing probe is disposed on the sliding seat and is disposed on one side facing each stroke detection element to detect each stroke detection element;

[0148] The offset detection device is used to detect the extension length of the offset rod 15 and feed back the real-time extension length of the offset rod 15 to the processor;

[0149] In this embodiment, the sliding seat, the sliding drive mechanism, the offset rod 15 and the offset drive mechanism cooperate with each other to adjust the position of the lifting base 13 so that the lifting member and the coating head 12 provided on the lifting base 13 can also be adjusted along with the lifting base 13.

[0150] The offset component adjusts the positions of the lifting component and the coating head 12 to dynamically adjust the coating trajectory in the aluminum film cavity 9; wherein, the offset component adjusts the positions of the lifting component and the coating head 12 according to the parameters of the coating path.

[0151] The thermal grease supply module includes a booster pump, a supply pipeline, and a storage tank. The two ends of the supply pipeline are connected to the coating head 12 and the storage tank, respectively. The booster pump is bridged in the supply pipeline and pressurizes the supply pipeline, so that the thermal grease 10 in the storage tank can be transferred to the coating head 12 through the supply pipeline. The booster pump's pressurization effect enables the coating head 12 to supply the thermal grease 10 smoothly and efficiently, thereby achieving the coating of the aluminum cavity 9 with thermal grease 10.

[0152] Optionally, the position adjustment module includes a rotation unit, a support platform 1, and several limiting units, wherein the support platform 1 is used to support the rotation unit and the limiting units;

[0153] Each of the aforementioned limiting units is used to clamp the aluminum diaphragm cavity 9 and is disposed on the rotating unit;

[0154] The rotating unit is used to adjust the position of the limiting unit;

[0155] The rotating unit includes a rotating plate 27, a rotating drive mechanism 28, and an angle detection component. The rotating plate 27 is used to adjust the position of the limiting unit.

[0156] The rotation drive mechanism 28 is located on the side of the rotating plate 27 away from the limiting unit, and drives the rotating plate 27 to rotate along its own axis. The angle detection component detects the rotation angle of the rotating plate 27.

[0157] The limiting unit 24 is disposed on the rotating plate 27 and is distributed at equal intervals around the axis of the rotating plate 27. The position of the limiting unit is adjusted by the rotating unit so that the limiting unit passes through the mounting station 32 in sequence, and the battery cell 6 is transferred to the aluminum film cavity 9 by the battery cell transfer module to place the battery cell 6, so as to improve the packaging efficiency of the battery cell 6.

[0158] The loading station 32 is located on the side of the rotating disk closest to the transport module, such as... Figure 2 As shown in the dashed box, the coating station is located on the side of the rotating disk away from the transport module.

[0159] Optionally, the limiting unit includes a limiting cavity 24 and a position adjustment component. The position adjustment component is used to clamp aluminum film cavities 9 of different sizes. The position adjustment component is hidden in the limiting cavity 24.

[0160] The position adjustment component includes a first limiting seat 29, a second limiting seat, a first sliding rail 16, a second sliding rail 23, a first sliding drive mechanism, a second sliding drive mechanism, and a plurality of position markers.

[0161] The first limiting seat 29 and the second limiting seat are respectively disposed on the first sliding rail 16 and the second sliding rail 23, and each of the position markers is respectively disposed on the first sliding rail 16 and the second sliding rail 23, and is distributed at equal intervals along the length direction of the first sliding rail 16 and the second sliding rail 23;

[0162] The first sliding drive mechanism is disposed on the first limiting seat 29 and drives the first limiting seat 29 to slide along the track direction of the first sliding track 16;

[0163] The second sliding drive mechanism is disposed on the second limiting seat and drives the second limiting seat to slide along the second sliding track 23;

[0164] The mutual cooperation between a set of first limiting seats 29 and a set of second limiting seats restricts the aluminum cavity 9 and, in conjunction with the cell transfer module, places the cell 6 into the aluminum cavity 9.

[0165] Example 2.

[0166] This embodiment should be understood to include at least all the features of any of the foregoing embodiments, and to further improve upon them, according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 Furthermore, the battery cell 6 packaging system also includes a packaging module, which is used to package the aluminum cavity 9 containing the battery cell 6 and the thermal grease 10 to form a battery pack.

[0167] The encapsulation module is disposed in the limiting cavity 24. When the battery cell 6 is placed in the aluminum film cavity 9, the aluminum film cavity 9, which contains the battery cell 6 and the thermal grease 10, is encapsulated.

[0168] In addition, the packaging module is controlled and connected to the processor, and the processor centrally controls the packaging module components.

[0169] Each of the aluminum film cavities 9 is placed in each of the limiting cavities 24, and the battery cell 6 is placed in the aluminum film cavity 9. The aluminum film cavity 9 is then extruded and encapsulated by the encapsulation module.

[0170] The position adjustment module limits the position of the aluminum cavity 9, and after the battery cell 6 is placed in the aluminum cavity 9, the packaging module seals the aluminum cavity 9 to form a battery pack.

[0171] The encapsulation module includes a height adjustment unit and an encapsulation unit. The height adjustment unit is used to adjust the height of the aluminum cavity 9 in order to restrict the aluminum cavity 9.

[0172] The encapsulation module is used to clamp and press the aluminum cavity 9, which carries the battery cell 6 and the thermal grease 10, to form an encapsulated battery pack. The height adjustment unit includes a lifting plate 25, a lifting rod 26, and a lifting drive mechanism. One end of the lifting rod 26 is vertically fixedly connected to the lower end face of the lifting rod 26, and the other end of the lifting rod 26 is vertically fixedly connected to the bottom wall of the limiting cavity 24. The lifting drive mechanism is drivenly connected to the lifting rod 26 to drive the lifting rod 26 to perform telescopic movements, so as to adjust the aluminum cavity 9 of different models.

[0173] The packaging unit further includes a packaging track 17, a packaging base 20, a packaging drive mechanism, a first adjusting rod 19, a first adjusting drive mechanism, a second adjusting rod 18, a rolling wheel 21, and a packaging laser head 22. The packaging track 17 is disposed on the side wall of the limiting cavity 24.

[0174] The packaging base 20 is slidably connected to the packaging track 17 and slides along the track direction of the packaging track 17 under the drive of the packaging drive mechanism;

[0175] One end of the first adjusting rod 19 is connected to the encapsulation base 20, and the other end extends toward the side close to the aluminum film cavity 9 and its end is connected to the rolling wheel 21. The first adjusting drive mechanism is driven to the first adjusting rod 19 to cause the first adjusting rod 19 to perform extension and retraction operations.

[0176] The rolling wheel 21 is made of silicone rubber, which makes it elastic when in contact with the outer wall of the aluminum diaphragm cavity 9, so as to protect the aluminum diaphragm cavity 9.

[0177] One end of the second adjusting rod 18 is connected to the encapsulation base 20, and the other end extends toward the side close to the aluminum film cavity 9 and its end is connected to the encapsulation laser head 22. The second adjusting drive mechanism is driven to the second adjusting rod 18 to cause the second adjusting rod 18 to perform extension and retraction operations.

[0178] In this embodiment, after the encapsulation laser head 22 aggregates the aluminum diaphragm cavity 9 together, it triggers a laser to weld the aluminum diaphragm cavity 9 to form an encapsulated battery pack. The encapsulation laser head 22 performs welding by laser welding, which is a technical means well known to those skilled in the art. Those skilled in the art can consult relevant technical manuals to learn about this technology, so it will not be described in detail in this embodiment.

[0179] By cooperating with the packaging module and the position adjustment module, the battery cell 6 is placed in the aluminum cavity 9, and the aluminum cavity 9, which carries the battery cell 6 and the thermal grease 10, is packaged to improve the overall packaging efficiency and packaging accuracy. At the same time, the packaging process also protects the quality of the outer wall of the packaged battery pack.

[0180] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the scope of protection of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the scope of protection of the present invention. Furthermore, the elements therein can be updated as technology develops.

Claims

1. A cell packaging control system based on position detection, the cell packaging control system comprising an aluminum diaphragm cavity, characterized in that, The battery cell packaging system also includes a position adjustment module, a detection module, a battery cell transfer module, a transportation module, and a thermal grease coating module. The transport module is used to transport the battery cells; The detection module is used to detect the groove width of the aluminum film cavity; The thermal grease coating module applies thermal grease to the aluminum film cavity at the coating station of the position adjustment module based on the groove width data of the detection module. Specifically, the battery cells on the transport module are clamped and transferred to the aluminum film cavity coated with thermally conductive silicone grease by the battery cell transfer module; The cell transfer module, based on the detection data from the detection module, clamps and transfers the cell into the aluminum cavity coated with thermally conductive silicone grease at the mounting station of the position adjustment module; The position adjustment module is used to adjust the position of several aluminum cavities so that each aluminum cavity can first complete the application of thermal grease at the coating station, and then adjust its position to the mounting station for battery cell mounting. The detection module includes a data acquisition unit, a storage unit, and an analysis unit. The data acquisition unit acquires image data of the aluminum cavity in the mounting station of the position adjustment module. The storage unit stores the detection data acquired by the data acquisition unit. The analysis unit analyzes the groove width data of the aluminum cavity based on the image data acquired by the data acquisition unit. The number of acquisition units includes at least two, which are respectively set above the mounting station of the position adjustment module and the coating station of the position adjustment module, so as to acquire image data of the aluminum film cavity at the mounting station of the position adjustment module and the image data of the aluminum film cavity at the coating station of the position adjustment module, respectively. The acquisition unit includes an acquisition probe and a support base, the support base being used to support the acquisition probe; the acquisition probe acquires image data of the aluminum diaphragm cavity; The analysis unit acquires and processes image data of the aluminum cavity measured by the acquisition probe above the coating station of the position adjustment module. The processing includes grayscale conversion and edge extraction to form multiple edge pixels of the aluminum cavity. Two sets of edge pixel coordinates, A1B1 and A2B2, are obtained from these multiple edge pixels. Among them, the selected edge pixel A1 and edge pixel B1 must satisfy the minimum distance between the line segment A1B1 formed by the two to actually reflect the actual groove width data in the length direction of the aluminum film cavity, and the selected edge pixel A2 and edge pixel B2 must satisfy the minimum distance between the line segment A2B2 formed by the two to actually reflect the actual groove width data in the width direction of the aluminum film cavity. Select two edge point pixel coordinates A1(x1, y1) and B1(x2, y2) located on opposite sides of the acquired aluminum cavity image. The line connecting the two edge point coordinates A1(x1, y1) and B1(x2, y2) must be parallel to the length direction of the aluminum cavity. The distance between the two edge point coordinates A1(x1, y1) and B1(x2, y2) is defined as the slot width distance Distant1 in the length direction. Distant1 in the length direction is calculated according to the following formula: Select the pixel coordinates A2(x3, y3) and B2(x4, y4) of two edge points located on opposite sides of the acquired aluminum cavity image. The line connecting the two edge points A2(x3, y3) and B2(x4, y4) must be parallel to the width direction of the aluminum cavity. The distance between the two edge points A2(x3, y3) and B2(x4, y4) is defined as the slot width distance Distant2 in the width direction. Distant2 is calculated according to the following formula: The analysis unit calculates the coating path length S of the thermal grease application module based on Distant1 and Distant2: S=d·(n-1)+D max ·n In the formula, D max The working width of each coating row of the thermal grease coating module is defined as the width of each D-coating row applied by the thermal grease coating module in the aluminum cavity. max The working width is one line, satisfying: D max =Distant2-2Δx, where Δx is the safe distance between the thermal grease coating module and the sidewall of the aluminum cavity during coating, d is the spacing between adjacent coating rows of the thermal grease coating module in the aluminum cavity, and n is the number of coating rows, satisfying: The thermal grease coating module coats the aluminum film cavity with thermal grease according to the coating path length S.

2. The cell packaging control system based on position detection according to claim 1, characterized in that, The position adjustment module includes a rotating unit, a support platform, and several limiting units, wherein the support platform is used to support the rotating unit and the limiting units; Each of the aforementioned limiting units is used to clamp the aluminum film cavity and is disposed on the rotating unit; The rotating unit is used to adjust the position of the limiting unit; The rotating unit includes a rotating plate, a rotating drive mechanism, and an angle detection component. The rotating plate is used to adjust the position of the limiting unit. The rotation drive mechanism is located on the side of the rotating plate away from the limiting unit, and drives the rotating plate to rotate along its own axis. The angle detection component detects the rotation angle of the rotating plate.

3. The cell packaging control system based on position detection according to claim 2, characterized in that, The transport module includes a transport unit and a protection unit. The transport unit transports the battery cell, and the protection unit restricts the battery cell on the transport unit to keep the battery cell in an upright position. The transport unit includes a transport frame, a transport belt, a transport drive mechanism, and a plurality of transport rollers. The transport frame is used to support the transport belt, the transport drive mechanism, and each of the transport rollers. Each transport roller is mounted on the transport frame, and both ends of the transport roller are hinged to the transport frame. The conveyor belt is nested on each of the conveyor rollers to form a conveyor section. The conveyor drive mechanism is driven to the conveyor section and conveys the battery cell under the drive of the conveyor drive mechanism.

4. A cell packaging control system based on position detection according to claim 3, characterized in that, The cell transfer module includes a clamping unit and a transfer unit. The transfer unit is used to move the position of the clamping unit, and the clamping unit is used to clamp the cell. The clamping unit is disposed on the transfer unit, and the clamped battery cell is transferred to the aluminum film cavity through the transfer unit.

5. A cell packaging control system based on position detection according to claim 4, characterized in that, The clamping unit includes a set of clamping heads, a clamping seat, a pressure detection element, and a clamping drive mechanism. The clamping seat is used to support the set of clamping heads and the clamping drive mechanism. One end of the set of clamping heads is hinged to the clamping seat and drivenly connected to the clamping drive mechanism. The pressure detection element is installed on a set of clamping heads and detects the clamping force between the set of clamping heads and the battery cell.

6. A cell packaging control system based on position detection according to claim 5, characterized in that, The limiting unit includes a limiting cavity and a position adjustment component. The position adjustment component is used to clamp aluminum film cavities of different sizes, and the position adjustment component is hidden in the limiting cavity. The position adjustment component includes a first limiting seat, a second limiting seat, a first sliding rail, a second sliding rail, a first sliding drive mechanism, a second sliding drive mechanism, and a plurality of position markers. The first limiting seat and the second limiting seat are respectively disposed on the first sliding rail and the second sliding rail, and each of the position markers is respectively disposed on the first sliding rail and the second sliding rail, and is distributed at equal intervals along the length direction of the first sliding rail and the second sliding rail; The first sliding drive mechanism is disposed on the first limiting seat and drives the first limiting seat to slide along the track direction of the first sliding track; The second sliding drive mechanism is disposed on the second limiting seat and drives the second limiting seat to slide along the second sliding track.

7. A cell packaging control system based on position detection according to claim 6, characterized in that, The protection unit includes a set of protective rods, a distance detection element, a support frame, an adjustment drive mechanism, and several adjustment rods. The set of protective rods is used to protect the battery cell; the distance detection element is used to detect the distance between the set of protective rods; and the support frame is used to support the protective rods, adjustment rods, and adjustment drive mechanism. One end of each of the adjusting rods is vertically and fixedly connected to one side wall of the protective rod, and the other end of each of the adjusting rods is connected to the support frame; The adjustment drive mechanism is driven to each of the adjustment rods so that the adjustment rods can extend and retract.

8. A cell packaging control system based on position detection according to claim 7, characterized in that, The thermal grease application module includes a coating head, a lifting component, an offset component, and a grease supply component. The coating head is used to apply thermal grease; the lifting component is used to adjust the height of the coating head; and the offset component is used to adjust the positions of the lifting component and the coating head. The grease supply component is used to supply thermally conductive grease to the coating head.

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