Battery string carrying mechanism

Abstract

The utility model discloses a battery string carrying mechanism which comprises a driving mechanism and a picking mechanism, the driving end of the driving mechanism is connected with the picking mechanism, the driving mechanism is used for driving the picking mechanism to move to welding equipment and picking a battery string welded on the welding equipment, and the battery string is formed by welding a plurality of battery pieces through a welding strip; the picking mechanism comprises a base frame, a plurality of picking assemblies and a shaping assembly, the picking assemblies are used for picking or releasing the two sides of one battery piece, and the shaping assembly downwards pushes the middle parts of the battery pieces picked by the picking assemblies so as to level the battery pieces picked by the picking assemblies; and the driving mechanism is also used for driving the picking mechanism to release the leveled battery string to the glue printing equipment or the typesetting equipment. The shaping assembly is integrated on the picking mechanism, the picking mechanism flattens the picked battery string in the process of carrying the battery string to the glue printing equipment, a leveling station does not need to be independently arranged, the production efficiency is improved, and the fast-beat processing requirement is met.

Description

Technical Field

[0001] The application belongs to the field of photovoltaic cell production equipment technology, and in particular relates to a cell string handling mechanism. Background Technology

[0002] Back-contact solar cells are a type of solar cell where both the positive and negative electrodes are located on the back, with no electrode grid lines obstructing the front, unlike traditional solar cells which have one electrode on each side.

[0003] In the production process of photovoltaic cell modules, after the back contact cell strings are welded, they need to be transferred to the next process. However, the silicon material of the cell and the solder ribbon have different coefficients of thermal expansion. During the welding process of the back contact cell strings, the solder ribbon and the cell will expand due to the high temperature, and then shrink when the solder ribbon and the cell cool down after welding.

[0004] Because the solder ribbon and the solar cell shrink at different rates, the shrinkage force of the solder ribbon acts on the solar cell, causing warping at both ends. Uneven solar cell strings can affect the results of subsequent processes, such as affecting printing accuracy, layout accuracy, or increasing the breakage rate. In addition, it can also affect the light absorption and appearance of the solar cell strings. Utility Model Content

[0005] The purpose of this application is to provide a battery string handling mechanism to solve the problem that the battery cells in existing battery strings are warped too much, affecting subsequent printing or layout.

[0006] To achieve this objective, the following technical solution is adopted in this application:

[0007] This application proposes a battery string transport mechanism, which includes a drive mechanism and a pickup mechanism, wherein:

[0008] The drive end of the drive mechanism is connected to the pick-up mechanism. The drive mechanism is configured to drive the pick-up mechanism to move to the welding equipment and pick up the battery string that has been welded on the welding equipment. The battery string includes several battery cells and several welding strips arranged alternately on the back of each battery cell.

[0009] The picking mechanism includes a base frame, several picking components and a shaping component. The several picking components are arranged sequentially and spaced apart on the base frame along a first horizontal direction. The picking components are configured to pick up or release the two sides of the front side of a cell in the battery string. The shaping component is arranged on the base frame and is configured to push down the middle part of the front side of the cell picked up by each picking component to flatten the cell picked up by each picking component.

[0010] The drive mechanism is also configured to drive the pickup mechanism and battery string to the downstream equipment and release the leveled battery string to the downstream equipment.

[0011] The battery string handling mechanism proposed in this application incorporates a shaping component on the picking mechanism. After the picking component picks up both sides of the front of the corresponding battery cell, the shaping component pushes the middle part of the front of the battery cell downwards to flatten the picked-up battery cell and releases the flattened battery string to the subsequent equipment. This ensures the uniformity of subsequent adhesive printing and improves the processing quality of the battery string. Simultaneously, the shaping component is integrated into the picking mechanism, which flattens the picked-up battery string during the process of transporting it to the subsequent equipment. This eliminates the need for a separate flattening station, simplifies the process flow, improves production efficiency, and meets the requirements of fast-paced processing.

[0012] Optionally, the pickup assembly includes a first adsorption element and a second adsorption element, wherein:

[0013] The first adsorption element and the second adsorption element are mounted on the base frame at intervals along the first horizontal direction. The first adsorption element is configured to adsorb the battery cell on the first side along the first horizontal direction by negative pressure, and the second adsorption element is configured to adsorb the battery cell on the second side along the first horizontal direction by negative pressure.

[0014] By setting a first adsorption component and a second adsorption component, the battery cell is attracted and fixed on both sides along the first horizontal direction. This provides a picking component that uses negative pressure adsorption to pick up the battery cell. It is not only simple in structure and easy to implement, but also uses negative pressure adsorption to pick up the battery cell. The adsorption component and the battery cell are flexibly connected. When the battery cell is leveled, the adsorption component can adapt to the deformation of the battery cell, avoiding damage to the battery cell during the shaping process.

[0015] Optionally, the shaping component includes a first driving component and several shaping plates, each shaping plate corresponding to a picking component, wherein:

[0016] The shaping plate is vertically and can be mounted on the base frame and located between the first and second adsorption components of the corresponding pickup assembly. The drive end of the first drive assembly is connected to several shaping plates, and the first drive assembly is configured to drive several shaping plates to move up and down synchronously.

[0017] The first driving component drives several shaping plates to descend synchronously, so as to abut against and push down the middle part of the battery cell held by the first and second adsorption components, thereby leveling the battery cell.

[0018] By driving several shaping plates to simultaneously abut against the middle part of the front of the battery cell held by the corresponding picking component through the first driving component, the synchronous leveling of all battery cells in the battery string picked up by the picking mechanism is achieved, which not only improves the leveling efficiency of the shaping component, but also improves the consistency of the shaping component in leveling the battery string.

[0019] Optionally, the shaping plate is provided with a shaping surface facing the battery cell. The length of the shaping surface is not less than the length of the battery cell. The shaping surface is convex arc-shaped. The first driving component drives the shaping plate to descend until the shaping surface is in contact with the middle part of the front side of the battery cell.

[0020] By setting a convex arc-shaped shaping surface on the bottom of the shaping plate, it is easier for the shaping plate to gradually fit into the middle part of the front of the battery cell during the descent process, thus improving the leveling effect of the battery cell.

[0021] Optionally, the first drive assembly includes a first drive member, a slider, and at least one set of guide components, wherein:

[0022] The fixed end of the first driving member is mounted on the base frame, and the sliding member is slidably mounted on the base frame in a first horizontal direction. The driving end of the first driving member is connected to the sliding member, and the first driving member is configured to drive the sliding member to slide in the first horizontal direction.

[0023] The first end of the guide assembly is connected to the slider, and the second end of the guide assembly is connected to several shaping plates. The guide assembly is configured to drive all the shaping plates to rise and fall synchronously while the slider slides along the first horizontal direction.

[0024] The first driving component drives the sliding component to slide along the first horizontal direction, and then the guide component drives all the shaping plates to rise and fall synchronously. This achieves the synchronous rising and falling of all the shaping plates using a single driving component, and provides a first driving component with a simple structure, compact layout and reasonable design.

[0025] Optionally, the guide assembly includes several inclined track slots and several lifting rods, each lifting rod corresponding to a shaping plate, wherein:

[0026] Several inclined track grooves are spaced apart on the slider along the first horizontal direction. Each track groove corresponds to a lifting rod. The first end of the lifting rod is provided with a limit wheel, which is inserted into the corresponding track groove. The second end of the lifting rod is fixedly connected to the shaping plate.

[0027] When the limiting wheel is at the bottom of the track groove, the shaping plate shapes the battery cell; when the limiting wheel is at the top of the track groove, the shaping plate moves away from the battery cell held by the pickup module.

[0028] By setting several inclined track grooves at intervals along the first horizontal direction on the slider, and inserting the limiting wheel connected to the second end of the lifting rod into the track groove, the track groove slides horizontally with the slider, driving the limiting wheel to move synchronously in the track groove, and then synchronously driving the lifting rod to rise and fall, so as to realize the synchronous rising and falling of the shaping plate, a guide component with precise guidance control, stable and reliable operation and long service life is provided.

[0029] Optionally, the first drive assembly includes two sets of guide assemblies, the first set of guide assemblies being disposed on a first side of the slider extending along a first horizontal direction, and the second set of guide assemblies being disposed on a second side of the slider extending along the first horizontal direction.

[0030] By setting two guide components on both sides of the slider extending along the first horizontal direction, and connecting two lifting rods at intervals along the second horizontal direction for each shaping plate, the smoothness of the lifting and lowering of the shaping plate is improved.

[0031] Optionally, the first drive component includes several second drive units, wherein:

[0032] Each second drive unit corresponds to a shaping plate. The fixed end of the second drive unit is on the base frame, and the driving end of the second drive unit is connected to the corresponding shaping plate. The second drive unit is configured to drive the corresponding shaping plate to rise and fall.

[0033] By setting up several second driving components, each second driving component drives the corresponding shaping plate to rise and fall, and each second driving component synchronously drives the corresponding shaping plate to rise and fall, a first driving component that is easy to control and highly flexible is provided.

[0034] Optionally, the battery string transport mechanism also includes an air blowing assembly, which includes an air blowing device and at least one air blowing pipe. The air blowing device is connected to each air blowing pipe and is configured to supply gas into the air blowing pipe.

[0035] The air blowing pipe is fixedly installed on the base frame and extends along the first horizontal direction. The air blowing pipe has multiple air blowing holes arranged at intervals along the first horizontal direction, and the air blowing holes are set towards the battery cell that is picked up by the pickup component.

[0036] By setting up an air blowing assembly, rapid cooling of the battery cells is achieved during leveling, thereby fixing the shape of the battery cells and reducing the probability of deformation after leveling. At the same time, by setting up an air blowing pipe and air blowing device, air is blown onto the battery cells held by each pickup assembly through multiple air blowing holes on the air blowing pipe, providing an air blowing assembly with a simple structure and good cooling effect.

[0037] Optionally, the drive mechanism includes a frame, a second drive assembly, a traversing component, a third drive assembly, and a lifting component, wherein:

[0038] The transverse component is slidably mounted on the frame along a second horizontal direction. The drive end of the second drive assembly is connected to the transverse component. The second drive assembly is configured to drive the transverse component to slide along a second horizontal direction, which is perpendicular to the first horizontal direction.

[0039] The lifting component is mounted on the transverse component in a height-adjustable manner. The drive end of the third drive assembly is connected to the lifting component. The third drive assembly is configured to drive the lifting component to move up and down. The base frame is mounted on the lifting component.

[0040] The second drive component and the lateral movement component work together to drive the pickup mechanism to move laterally; the third drive component and the lifting component work together to drive the pickup mechanism to lift, enabling the pickup mechanism to quickly connect with welding equipment and downstream equipment, providing a drive mechanism with high working efficiency and stable and reliable operation. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural schematic diagram of the battery string transport mechanism provided in the embodiments of this application;

[0042] Figure 2 This is a three-dimensional structural diagram of the picking mechanism of the battery string transport mechanism provided in the embodiments of this application;

[0043] Figure 3 This is a front view of the first drive component of the battery string transport mechanism provided in the embodiments of this application;

[0044] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0045] Figure 5 This is a three-dimensional structural schematic diagram of the first drive component of the battery string transport mechanism provided in the embodiments of this application;

[0046] Figure 6 This is a diagram showing the working state of the battery string transport mechanism and printing table provided in the embodiments of this application.

[0047] Figures 1 to 6 The following reference numerals are included:

[0048] Drive mechanism 10: frame 11, second drive assembly 12, transverse component 13, third drive assembly 14, lifting component 15, printing table 16;

[0049] Pick-up mechanism 20: base frame 21, pick-up assembly 22, first adsorption component 220, second adsorption component 221, shaping assembly 23, first drive assembly 230, first drive component 2300, sliding component 2301, shaping plate 231, shaping surface 2310, track groove 232, lifting rod 233, limiting wheel 234, guide sleeve 235, track plate 236;

[0050] Battery string 30: Battery cell 31;

[0051] First sliding guide pair 40, second sliding guide pair 41, third sliding guide pair 42;

[0052] Air tube 50. Detailed Implementation

[0053] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] Back-contact solar cell strings have both positive and negative electrodes on the back side of the cell, with no electrode grid lines obstructing the front, unlike traditional solar cells which have one electrode on each side. In the production of photovoltaic modules, after soldering, back-contact solar cell strings typically need to be moved to the printing area for adhesive application. However, the silicon material of the solar cell and the solder ribbon have different coefficients of thermal expansion. During the soldering process, both the solder ribbon and the solar cell expand due to the high temperature, and then contract as they cool after soldering. Because of this difference in contraction, the shrinkage force of the solder ribbon acts on the solar cell, causing warping at both ends. Uneven surfaces in the cell string can result in uneven adhesive application, or even prevent proper adhesive application. Furthermore, this can affect the light absorption rate and appearance of the solar cell string.

[0055] Therefore, this application proposes a battery string handling mechanism, please refer to [link to relevant documentation]. Figure 1 and Figure 2 As shown, an embodiment of this application provides a battery string handling mechanism including a driving mechanism 10 and a picking mechanism 20, wherein: the driving end of the driving mechanism 10 is connected to the picking mechanism 20, and the driving mechanism 10 is configured to drive the picking mechanism 20 to move to the welding equipment and pick up the battery string 30 that has been welded on the welding equipment. The battery string 30 includes a plurality of battery cells 31 and a plurality of welding strips arranged alternately on the back of each battery cell 31; the picking mechanism 20 includes a base frame 21, a plurality of picking components 22 and a shaping component 23, and the plurality of picking components 22 are arranged along a first horizontal direction ( Figure 1 The battery packs 30 are arranged sequentially at intervals on the base frame 21 in the direction of X. The pickup component 22 is configured to pick up or release the two sides of the front side of a battery cell 31 in the battery pack 30. The shaping component 23 is arranged on the base frame 21 and is configured to push down the middle part of the front side of the battery cell 31 picked up by each pickup component 22 to flatten the battery cell 31 picked up by each pickup component 22. The drive mechanism 10 is also configured to drive the pickup mechanism 20 and the battery pack 30 to the downstream equipment and release the flattened battery pack 30 to the downstream equipment.

[0056] The battery string transport mechanism proposed in this application includes a shaping component 23 on the picking mechanism 20. After the picking component 22 picks up the two sides of the front of the corresponding battery cell 31, the shaping component 23 pushes the middle part of the front of the battery cell 31 downward to flatten the picked-up battery cell 31 and release the flattened battery string 30 to the subsequent equipment, such as the printing equipment or the typesetting equipment, to ensure the uniformity of the subsequent printing and improve the processing quality of the battery string 30. At the same time, the shaping component 23 is integrated into the picking mechanism 20. During the process of transporting the battery string 30 to the subsequent equipment, the picking mechanism 20 flattens the picked-up battery string 30, eliminating the need for a separate flattening station, simplifying the process flow, improving production efficiency, and meeting the requirements of fast-paced processing.

[0057] Please see Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment, the pickup component 22 includes a first adsorption member 220 and a second adsorption member 221, wherein: the first adsorption member 220 and the second adsorption member 221 are spaced apart on the base frame 21 along a first horizontal direction, the first adsorption member 220 is configured to hold the battery cell 31 on a first side along the first horizontal direction by negative pressure, and the second adsorption member 221 is configured to hold the battery cell 31 on a second side along the first horizontal direction by negative pressure.

[0058] Specifically, the first adsorption element 220 and the second adsorption element 221 each include at least one suction cup; preferably, both the first adsorption element 220 and the second adsorption element 221 include two suction cups, with the two suction cups aligned along the second horizontal direction. Figure 1 The spacing in the Y direction is set to ensure stable and reliable adsorption of the corresponding side of the battery cell 31.

[0059] By setting the first adsorption element 220 and the second adsorption element 221, the battery cell 31 is attracted and fixed on both sides along the first horizontal direction. This provides a picking component 22 that uses negative pressure adsorption to pick up the battery cell 31. It is not only simple in structure and easy to implement, but also uses negative pressure adsorption to pick up the battery cell 31. The adsorption element and the battery cell 31 are flexibly connected. When the battery cell 31 is leveled, the adsorption element can adapt to the deformation of the battery cell 31, avoiding damage to the battery cell 31 during the shaping process.

[0060] In one embodiment, the shaping component 23 includes a first driving component 230 and a plurality of shaping plates 231, each shaping plate 231 corresponding to a pickup component 22, wherein: the shaping plate 231 is vertically and vertically disposed on the base frame 21 and located between the first adsorption member 220 and the second adsorption member 221 of the corresponding pickup component 22; the driving end of the first driving component 230 is connected to the plurality of shaping plates 231; the first driving component 230 is configured to drive the plurality of shaping plates 231 to rise and fall synchronously; the first driving component 230 drives the plurality of shaping plates 231 to fall synchronously to abut against and push downward the middle part of the battery cell 31 held by the first adsorption member 220 and the second adsorption member 221, thereby flattening the battery cell 31.

[0061] The first driving component 230 drives several shaping plates 231 to simultaneously abut against the middle part of the front of the battery cell 31 held by the corresponding picking component 22, thereby achieving synchronous leveling of all battery cells 31 picked up by the picking mechanism 20 in the battery string 30. This not only improves the leveling efficiency of the shaping component 23, but also improves the consistency of the shaping component 23 in leveling the battery string 30.

[0062] In one embodiment, the shaping plate 231 is provided with a shaping surface 2310 facing the battery cell 31. The length of the shaping surface 2310 is not less than the length of the battery cell 31. The shaping surface 2310 is convex arc-shaped. The first driving component 230 can drive the shaping plate 231 down until the shaping surface 2310 is in contact with the middle part of the front side of the battery cell 31. The specific descent value of the shaping plate 231 depends on the results after on-site debugging, as long as the deformation of the battery cell is minimized.

[0063] By setting a convex arc-shaped shaping surface 2310 on the bottom surface of the shaping plate 231, it is easier for the shaping plate 231 to gradually fit into the middle part of the front of the battery cell 31 during the descent process, thereby improving the leveling effect of the battery cell 31.

[0064] In one embodiment, the first driving assembly 230 includes a first driving member 2300, a sliding member 2301, and at least one set of guide assemblies, wherein: the fixed end of the first driving member 2300 is mounted on the base frame 21, the sliding member 2301 is slidably mounted on the base frame 21 along a first horizontal direction, the driving end of the first driving member 2300 is connected to the sliding member 2301, and the first driving member 2300 is configured to drive the sliding member 2301 to slide along the first horizontal direction; the first end of the guide assembly is connected to the sliding member 2301, the second end of the guide assembly is connected to a plurality of shaping plates 231, and the guide assembly is configured to drive all the shaping plates 231 to rise and fall synchronously while the sliding member 2301 slides along the first horizontal direction.

[0065] Specifically, the first driving component 2300 includes a motor, a ball screw, and a screw nut. The motor is fixedly mounted on the base frame 21, and the ball screw is rotatably mounted on the base frame 21 along its own axis. The motor shaft is connected to the ball screw via a coupling. The screw nut is fitted onto the ball screw and is fixedly connected to the sliding component 2301. The motor drives the ball screw to rotate, so that the sliding component 2301 slides along the first horizontal direction through the cooperation of the ball screw and the screw nut.

[0066] Specifically, a first sliding guide pair 40 is provided between the slider 2301 and the base frame 21. The first sliding guide pair 40 includes a first guide rail and a first slider. The first guide rail is fixedly installed on the base frame 21 along a first horizontal direction. The first slider is fixedly installed on the slider 2301 and slidably sleeved on the first guide rail to ensure the smoothness of the slider 2301 sliding on the base frame 21.

[0067] The first driving component 2300 drives the sliding component 2301 to slide along the first horizontal direction, and then the guide component drives all the shaping plates 231 to rise and fall synchronously. This realizes the synchronous rising and falling of all the shaping plates 231 by using one driving component, and provides a first driving component 230 with simple structure, compact layout and reasonable design.

[0068] In one embodiment, the guiding assembly includes a plurality of inclined track grooves 232 and a plurality of lifting rods 233, each lifting rod 233 corresponding to a shaping plate 231. The plurality of inclined track grooves 232 are spaced apart along a first horizontal direction on the sliding member 2301. Each track groove 232 corresponds to a lifting rod 233. A limiting wheel 234 is provided at the first end of the lifting rod 233, and the limiting wheel 234 is inserted into the corresponding track groove 232. The second end of the lifting rod 233 is fixedly connected to the shaping plate 231. When the limiting wheel 234 is at the bottom of the track groove 232, the shaping plate 231 shapes the battery cell 31. When the limiting wheel 234 is at the top of the track groove 232, the shaping plate 231 moves away from the battery cell 31 held by the pickup assembly 22.

[0069] Specifically, the guide assembly also includes several guide sleeves 235, each guide sleeve 235 corresponding to a lifting rod 233. The guide sleeves 235 are fixed on the base frame 21, and the lifting rods 233 are fitted into the corresponding guide sleeves 235 in a height-adjustable manner. Through the cooperation of the guide sleeves 235 and the lifting rods 233, the safety and stability of the lifting of the shaping plate 231 are further improved.

[0070] Specifically, the slider 2301 is provided with a plurality of track plates 236 spaced apart along the first direction, and each track plate 236 is provided with a track groove 232; or, the slider 2301 is provided with a single track plate 236 extending along the first horizontal direction, and a plurality of track grooves 232 are spaced apart on the track plate 236 along the first horizontal direction.

[0071] By setting a plurality of inclined track grooves 232 at intervals along the first horizontal direction on the slider 2301, and inserting the limiting wheel 234 connected to the second end of the lifting rod 233 into the track grooves 232, the track grooves 232 slide horizontally with the slider 2301, thereby driving the limiting wheel 234 to move synchronously within the track grooves 232, and then synchronously driving the lifting rod 233 to rise and fall, so as to realize the synchronous rising and falling of the shaping plate 231, providing a guide component with precise guidance control, stable and reliable operation and long service life.

[0072] Please see Figure 1 , Figures 4-6 As shown, in one embodiment, the first drive assembly 230 includes two sets of guide assemblies. The first set of guide assemblies is disposed on a first side of the slider 2301 extending along a first horizontal direction, and the second set of guide assemblies is disposed on a second side of the slider 2301 extending along the first horizontal direction.

[0073] By providing two guide components on both sides of the slider 2301 extending along the first horizontal direction, and connecting two lifting rods 233 at intervals along the second horizontal direction for each shaping plate 231, the stability of the lifting of the shaping plate 231 is improved.

[0074] In one embodiment, the first driving component 230 includes a plurality of second driving components, wherein: each second driving component corresponds to a shaping plate 231, the fixed end of the second driving component is on the base frame 21, the driving end of the second driving component is connected to the corresponding shaping plate 231, and the second driving component is configured to drive the corresponding shaping plate 231 to rise and fall.

[0075] By setting up a number of second driving components, each second driving component drives the corresponding shaping plate 231 to rise and fall, and each second driving component synchronously drives the corresponding shaping plate 231 to rise and fall, a first driving component 230 that is easy to control and highly flexible is provided.

[0076] In one embodiment, the battery string transport mechanism further includes an air blowing assembly, which includes an air blowing device and at least one air blowing pipe 50. The air blowing device is connected to each air blowing pipe 50 and is configured to supply gas into the air blowing pipe 50. The air blowing pipe 50 is fixedly mounted on the base frame 21 and extends along a first horizontal direction. The air blowing pipe 50 has a plurality of air blowing holes arranged at intervals along the first horizontal direction, and the air blowing holes are positioned toward the battery cell 31 picked up by the pickup assembly 22.

[0077] Specifically, an air blowing pipe 50 is provided on both sides of the base frame 21 extending along the first horizontal direction to improve the cooling efficiency of the battery cell 31.

[0078] By setting up the air blowing assembly, the battery cell 31 is rapidly cooled while being leveled, thereby fixing the shape of the battery cell 31 and reducing the probability of deformation after leveling. At the same time, by setting up the air blowing pipe 50 and the air blowing device, air is blown onto the battery cell 31 held by each pickup assembly 22 through multiple air blowing holes on the air blowing pipe 50, providing an air blowing assembly with a simple structure and good cooling effect.

[0079] In one embodiment, the drive mechanism 10 includes a frame 11, a second drive assembly 12, a transverse member 13, a third drive assembly 14, and a lifting member 15, wherein: the transverse member 13 is slidably mounted on the frame 11 along a second horizontal direction; the drive end of the second drive assembly 12 is connected to the transverse member 13, and the second drive assembly 12 is configured to drive the transverse member 13 to slide along a second horizontal direction, which is perpendicular to the first horizontal direction; the lifting member 15 is vertically mounted on the transverse member 13; the drive end of the third drive assembly 14 is connected to the lifting member 15, and the third drive assembly 14 is configured to drive the lifting member 15 to move up and down; and the base frame 21 is mounted on the lifting member 15.

[0080] Specifically, the second drive assembly 12 is a linear module composed of a motor and a synchronous belt type linear transmission pair. The transverse component 13 is fixed on one side of the transmission belt of the synchronous belt type linear transmission pair. The third drive assembly 14 is a cylinder, which is fixedly installed on the transverse component 13. The piston rod of the cylinder is connected to the lifting component 15.

[0081] Specifically, a second sliding guide pair 41 is provided between the lifting member 15 and the transverse member 13. The second sliding guide pair 41 includes a second guide rail and a second slider. The second guide rail is fixedly installed on the lifting member 15 in the vertical direction, and the second slider is fixedly installed on the transverse member 13 and slidably fitted inside the second guide rail to ensure the smoothness of the lifting member 15 in lifting and lowering on the transverse member 13.

[0082] Specifically, a third sliding guide pair 42 is provided between the transverse member 13 and the frame 11. The third sliding guide pair 42 includes a third guide rail and a third slider. The third guide rail is fixedly installed on the frame 11 along the second horizontal direction. The third slider is fixedly installed on the transverse member 13 and slidably fitted inside the third guide rail to ensure the smoothness of the transverse member 13 sliding horizontally along the second horizontal direction.

[0083] The second drive assembly 12 and the lateral movement component 13 work together to drive the pickup mechanism 20 to move laterally; the third drive assembly 14 and the lifting component 15 work together to drive the pickup mechanism 20 to lift, enabling the pickup mechanism 20 to quickly connect with welding equipment and downstream equipment, providing a drive mechanism 10 with high working efficiency and stable and reliable operation.

[0084] The general working process of the battery string transport mechanism proposed in this application is as follows:

[0085] S1, the drive mechanism 10 drives the pickup mechanism 20 to move to the welding equipment and pick up the battery string 30 that has been welded on the welding equipment;

[0086] S2, the shaping component 23 pushes down the middle part of the front of the battery cell 31 picked up by each picking component 22 to flatten the battery cell 31 picked up by each picking component 22.

[0087] S3, the drive mechanism 10 drives the pickup mechanism 20 to move to the downstream equipment and releases the leveled battery string 30 onto the printing table 16 of the downstream equipment;

[0088] S4, the printing table 16 sends the received battery string 30 to the printing mechanism of the subsequent equipment for printing.

[0089] It should be noted that in step S2, the leveling operation of the shaping component 23 can be performed immediately after the picking mechanism 20 picks up the battery string 30, or during the process of the picking mechanism 20 moving from the welding equipment to the downstream equipment, or when the picking mechanism 20 moves the picked-up battery string 30 to the preset position of the downstream equipment.

[0090] The battery string transport mechanism proposed in this application has the following advantages:

[0091] 1) The leveling operation of the picked-up battery string 30 was realized, which ensured the uniformity of subsequent adhesive printing and improved the processing quality of the battery string 30.

[0092] 2) The adsorption component and the battery cell 31 are connected flexibly to avoid damage to the battery cell 31 during shaping;

[0093] 3) It can simultaneously level all the battery cells 31 of the battery string 30 picked up by the picking mechanism 20, which improves the leveling efficiency of the shaping component 23.

[0094] 4) The guiding components offer precise guidance control, stable and reliable operation, and a long service life;

[0095] 5) During the leveling of the battery cell 31, the battery cell 31 can be cooled quickly, thereby fixing the shape of the battery cell 31 and reducing the probability of deformation of the battery cell 31 after leveling.

[0096] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A battery string transport mechanism, characterized in that, The battery string transport mechanism includes a drive mechanism and a pickup mechanism, wherein: The drive end of the drive mechanism is connected to the pickup mechanism. The drive mechanism is configured to drive the pickup mechanism to move to the welding equipment and pick up the battery string that has been welded on the welding equipment. The battery string includes a number of battery cells and a number of welding strips arranged alternately on the back of each battery cell. The picking mechanism includes a base frame, a plurality of picking components and a shaping component. The plurality of picking components are arranged sequentially and at intervals on the base frame along a first horizontal direction. The picking components are configured to pick up or release the two sides of the front side of a battery cell in the battery string. The shaping component is arranged on the base frame and is configured to push down the middle part of the front side of the battery cell picked up by each picking component to flatten the battery cell picked up by each picking component. The drive mechanism is also configured to drive the pickup mechanism and the battery string to the downstream device and release the leveled battery string to the downstream device.

2. The battery string transport mechanism according to claim 1, characterized in that, The pickup assembly includes a first adsorption element and a second adsorption element, wherein: The first adsorption element and the second adsorption element are mounted on the base frame at intervals along the first horizontal direction. The first adsorption element is configured to adsorb the battery cell on a first side along the first horizontal direction by negative pressure, and the second adsorption element is configured to adsorb the battery cell on a second side along the first horizontal direction by negative pressure.

3. The battery string transport mechanism according to claim 2, characterized in that, The shaping component includes a first driving component and a plurality of shaping plates, each shaping plate corresponding to one of the picking components, wherein: The shaping plate is vertically and elliptically mounted on the base frame and located between the first and second adsorption components of the corresponding pickup assembly. The driving end of the first driving assembly is connected to several shaping plates, and the first driving assembly is configured to drive several shaping plates to rise and fall synchronously. The first driving component drives several shaping plates to descend synchronously, so as to abut against and push down the middle part of the battery cell held by the first and second adsorption components, thereby flattening the battery cell.

4. The battery string transport mechanism according to claim 3, characterized in that, The shaping plate is provided with a shaping surface facing the battery cell. The length of the shaping surface is not less than the length of the battery cell. The shaping surface is convex arc-shaped. The first driving component drives the shaping plate to descend until the shaping surface is in contact with the middle part of the front side of the battery cell.

5. The battery string transport mechanism according to claim 3, characterized in that, The first driving component includes a first driving member, a sliding member, and at least one set of guide components, wherein: The fixed end of the first driving member is mounted on the base frame, and the sliding member is slidably mounted on the base frame along the first horizontal direction. The driving end of the first driving member is connected to the sliding member, and the first driving member is configured to drive the sliding member to slide along the first horizontal direction. The first end of the guide component is connected to the slider, and the second end of the guide component is connected to the plurality of shaping plates. The guide component is configured to drive all the shaping plates to rise and fall synchronously while the slider slides along the first horizontal direction.

6. The battery string transport mechanism according to claim 5, characterized in that, The guide assembly includes several inclined track grooves and several lifting rods, each lifting rod corresponding to one of the shaping plates, wherein: The plurality of inclined track grooves are spaced apart on the sliding member along the first horizontal direction. Each track groove corresponds to a lifting rod. The first end of the lifting rod is provided with a limiting wheel. The limiting wheel is inserted into the corresponding track groove. The second end of the lifting rod is fixedly connected to the shaping plate. When the limiting wheel is at the bottom of the track groove, the shaping plate shapes the battery cell; when the limiting wheel is at the top of the track groove, the shaping plate moves away from the battery cell held by the pickup component.

7. The battery string transport mechanism according to claim 6, characterized in that, The first drive assembly includes two sets of guide assemblies. The first set of guide assemblies is disposed on a first side of the slider extending along the first horizontal direction, and the second set of guide assemblies is disposed on a second side of the slider extending along the first horizontal direction.

8. The battery string transport mechanism according to claim 3, characterized in that, The first driving component includes a plurality of second driving components, wherein: Each second driving member corresponds to one of the shaping plates. The fixed end of the second driving member is on the base frame, and the driving end of the second driving member is connected to the corresponding shaping plate. The second driving member is configured to drive the corresponding shaping plate to rise and fall.

9. The battery string transport mechanism according to any one of claims 1-8, characterized in that, The battery string transport mechanism further includes an air blowing assembly, which includes an air blowing device and at least one air blowing pipe. The air blowing device is connected to each of the air blowing pipes and is configured to supply gas into the air blowing pipes. The air blowing pipe is fixedly installed on the base frame and extends along the first horizontal direction. The air blowing pipe has a plurality of air blowing holes arranged at intervals along the first horizontal direction, and the air blowing holes are positioned toward the battery cell picked up by the pickup component.

10. The battery string transport mechanism according to claim 1, characterized in that, The drive mechanism includes a frame, a second drive assembly, a traversing component, a third drive assembly, and a lifting component, wherein: The transverse member is slidably mounted on the frame along a second horizontal direction, and the drive end of the second drive assembly is connected to the transverse member. The second drive assembly is configured to drive the transverse member to slide along the second horizontal direction, which is perpendicular to the first horizontal direction. The lifting component is vertically mounted on the transverse component, the driving end of the third driving component is connected to the lifting component, the third driving component is configured to drive the lifting component to move up and down, and the base frame is mounted on the lifting component.

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