High-precision distance-expanding device and method for flexible component battery cells

Abstract

The present invention discloses a high-precision distance-expanding device and method for flexible component battery chips, belonging to the technical field of flexible batteries. The device comprises a support frame, a vacuum adsorption component, a transverse crank distance-expanding component, and a longitudinal sliding piece distance-expanding component; the vacuum adsorption component is used to adsorb a plurality of battery chips that are laid flat neatly and close to each other through the bottom surface; the transverse crank distance-expanding component is used to drive the vacuum adsorption component to split from the first direction to equally space the plurality of battery chips; the longitudinal sliding piece distance-expanding component is used to drive the vacuum adsorption component to split from the second direction to equally space the plurality of battery chips; the device of the present invention synchronously completes the transverse and longitudinal distance expansion through an integrated device, effectively simplifies the three independent processes of transverse distance expansion, transfer, and longitudinal distance expansion in the prior art, shortens the production cycle, and at the same time directly completes the distance expansion in a single device, avoiding the dislocation, offset, or damage of the battery chips caused by transfer after transverse distance expansion, thereby improving the battery yield.

Description

Technical Field

[0001] The present invention belongs to the technical field of flexible batteries, and particularly relates to a high-precision spacing-expanding device and method for flexible component battery wafers. Background Art

[0002] To achieve the flexible winding function of solar cell wafers, large-sized battery wafers need to be divided into hundreds of small battery wafers, and the small battery wafers need to be arranged at equal intervals in both the horizontal and vertical directions.

[0003] It has been found through research that the traditional method of arranging small battery wafers at equal intervals requires two processes: horizontal spacing expansion and vertical spacing expansion, and there is also a battery wafer transfer process between the two spacing expansion processes. In the actual production process, there are problems of low production efficiency and affecting the battery yield. Specifically, there are two points to be improved. First, because the horizontal spacing expansion and vertical spacing expansion of the existing technology are carried out on two independent devices respectively, each time of spacing expansion requires the process of device lowering, adsorbing the battery wafer, device rising, battery wafer spacing expansion, device lowering, separating the battery wafer, and device rising. And the above process needs to be repeated twice for two independent spacing expansions, which seriously affects the actual production efficiency. Second, because the horizontal spacing expansion and vertical spacing expansion of the existing technology are carried out on two independent devices respectively, the battery wafers still need to go through a transfer process before vertical spacing expansion after horizontal spacing expansion. In the transfer process, problems such as battery wafer disorder and misalignment may occur, seriously affecting the accuracy of vertical spacing expansion and further affecting the battery yield. Based on this, the present invention is further studied and proposed.

[0004] It should be noted that this part of the content of the present invention only provides the background technology related to the present invention, and does not necessarily constitute the prior art or well-known technology. Summary of the Invention

[0005] The present invention aims to solve the problems that the existing technology for arranging small battery wafers at equal intervals requires two processes: horizontal spacing expansion and vertical spacing expansion, and there is also a battery wafer transfer process between the two spacing expansion processes, resulting in low production efficiency and affecting the battery yield. The present invention provides a high-precision spacing-expanding device and method for flexible component battery wafers. The present invention can simultaneously achieve the horizontal spacing expansion and vertical spacing expansion of battery wafers on a set of devices, which not only improves the production efficiency but also reduces the negative impact brought by battery wafer transfer, and has the advantages of cost reduction and efficiency increase, and improving the product yield.

[0006] To achieve the above object, in a first aspect, the present invention provides a high-precision distance-expanding device for flexible component battery cells, comprising a support frame, a vacuum adsorption component, a transverse crank distance-expanding component, and a longitudinal sliding plate distance-expanding component; the vacuum adsorption component is arranged within the support frame and is used for adsorbing a plurality of battery cells that are neatly tiled and close to each other through the bottom surface; the transverse crank distance-expanding component is arranged on the support frame, and a part of the transverse crank distance-expanding component passes through the vacuum adsorption component from a second direction, and the transverse crank distance-expanding component is used for driving the vacuum adsorption component to split from a first direction so as to equally space the plurality of battery cells apart; the longitudinal sliding plate distance-expanding component is arranged on the support frame, and a part of the longitudinal sliding plate distance-expanding component passes through the vacuum adsorption component from the first direction, and the longitudinal sliding plate distance-expanding component is used for driving the vacuum adsorption component to split from the second direction so as to equally space the plurality of battery cells apart; wherein, the first direction and the second direction are perpendicular to each other.

[0007] Preferably, the vacuum adsorption component includes a plurality of vacuum suction blocks, and the plurality of vacuum suction blocks are closely attached in an array.

[0008] Preferably, the vacuum suction block is in a strip-shaped structure, each vacuum suction block is vertically arranged, the bottom surface of the vacuum suction block has a vacuum suction port, and the top of the vacuum suction block has a vacuum docking port.

[0009] Preferably, the transverse crank distance-expanding component includes two transverse driving mounting plates, a first driving member, a plurality of driving gears, a plurality of driving gear transmission shafts, a plurality of three-joint universal couplings, and a plurality of crank shafts; the two transverse driving mounting plates are respectively arranged on two opposite side surfaces of the support frame along the second direction; one first driving member is arranged at each end of each transverse driving mounting plate; a plurality of driving gears are connected between the two first driving members of each transverse driving mounting plate, and the plurality of driving gears are arranged in sequence and mesh with each other one by one; the tops of the plurality of driving gear transmission shafts pass through the transverse driving mounting plates and are respectively connected to the bottoms of the plurality of driving gears in a one-to-one correspondence; the plurality of three-joint universal couplings are respectively connected to the bottoms of the plurality of driving gear transmission shafts in a one-to-one correspondence; a crank shaft is arranged between every two three-joint universal couplings that are opposite to each other along the second direction, and the axial direction of the crank shaft is parallel to the second direction.

[0010] Preferably, accommodation grooves are formed on both sides of each vacuum suction block, and a crank shaft is arranged in the first strip-shaped space formed by the accommodation grooves of every two adjacent columns of vacuum suction blocks.

[0011] Preferably, the crank shaft has a first shaft diameter and a second shaft diameter in mutually perpendicular radial directions, the first shaft diameter is not greater than the maximum width when the two accommodation grooves are closed, and the second shaft diameter is greater than the maximum width when the two accommodation grooves are closed.

[0012] Preferably, elastic members are provided on the outermost two vacuum suction blocks through which both ends of the crankshaft pass. The elastic members are sleeved on the crankshaft and match its shape, and are used to keep the crankshaft in abutment with the receiving groove.

[0013] Preferably, the longitudinal slide block distance-expanding assembly includes two sets of second driving members, two sets of movable sliders, a sliding guide rail, a slider positioning plate, and distance-expanding guide columns; each set of second driving members includes two second driving members. One of the two second driving members in one set is respectively arranged at one end of two opposite sides of the support frame along the second direction, and the two second driving members in the other set are respectively arranged at the other end of two opposite sides of the support frame along the second direction; each set of movable sliders includes a plurality of movable sliders. A set of movable sliders is connected between each set of second driving members. The plurality of movable sliders in each set are arranged in sequence and adjacent movable sliders are connected to each other. The plurality of movable sliders between the two sets are opposite to each other one by one along the first direction; the sliding guide rail is arranged on the support frame along the second direction. A sliding guide rail is arranged on the outside of each set of movable sliders, and each set of movable sliders is slidably connected to the corresponding sliding guide rail; the slider positioning plate is arranged on the support frame. One of the movable sliders in each set of movable sliders is fixed by the slider positioning plate, and the two fixed movable sliders are aligned with each other; distance-expanding guide columns are arranged between every two opposite movable sliders between the two sets, and the axial direction of the distance-expanding guide columns is parallel to the first direction.

[0014] Preferably, each side surface of each vacuum suction block has two through holes distributed diagonally. A distance-expanding guide column is passed through each second strip-shaped space formed by the through holes of each row of vacuum suction blocks.

[0015] Preferably, a limit guide column is arranged on the top of each movable slider, and a limit ring is sleeved on the limit guide columns of every two adjacent movable sliders to connect the adjacent movable sliders to each other.

[0016] Preferably, the high-precision distance-expanding device for flexible component battery cells further includes a lifting assembly, and the lifting assembly is connected to the top of the support frame and is used to drive the support frame to rise or fall.

[0017] Preferably, the high-precision distance-expanding device for flexible component battery cells further includes a vacuum pumping assembly. The vacuum pumping assembly includes a vacuum pump and a plurality of branch pipes. The vacuum pump is connected to the plurality of branch pipes at the same time, and each branch pipe is communicated with a vacuum docking port.

[0018] Preferably, the vacuum pumping assembly further includes a main pipe, a vacuum gas distribution block, a plurality of sub-pipes, and a bus bar. The vacuum pump is connected to the vacuum gas distribution block through the main pipe. The vacuum gas distribution block is connected to the bus bar through a plurality of sub-pipes, and the bus bar is communicated with a plurality of vacuum docking ports through a plurality of branch pipes.

[0019] In a second aspect, the present invention provides a method for precisely expanding the distance between battery cells of a flexible component, which is applied to a device for precisely expanding the distance between battery cells of a flexible component. The method for precisely expanding the distance between battery cells of a flexible component includes:

[0020] Adsorbing a plurality of battery cells that are neatly tiled and close to each other through the bottom surface of the vacuum adsorption component;

[0021] Driving the vacuum adsorption component to split from a first direction through the transverse crank distance-expanding component to equally space the plurality of battery cells;

[0022] Driving the vacuum adsorption component to split from a second direction through the longitudinal sliding piece distance-expanding component to equally space the plurality of battery cells;

[0023] Wherein, the first direction and the second direction are perpendicular to each other.

[0024] Advantages of the present invention:

[0025] Through the above technical solutions, especially the device for precisely expanding the distance between battery cells of a flexible component, the present invention includes a support frame, a vacuum adsorption component, a transverse crank distance-expanding component, and a longitudinal sliding piece distance-expanding component; the vacuum adsorption component is arranged inside the support frame, and the vacuum adsorption component is used to adsorb a plurality of battery cells that are neatly tiled and close to each other through the bottom surface; the transverse crank distance-expanding component is arranged on the support frame, and a part of the transverse crank distance-expanding component passes through the vacuum adsorption component from the second direction, and the transverse crank distance-expanding component is used to drive the vacuum adsorption component to split from the first direction to equally space the plurality of battery cells; the longitudinal sliding piece distance-expanding component is arranged on the support frame, and a part of the longitudinal sliding piece distance-expanding component passes through the vacuum adsorption component from the first direction, and the longitudinal sliding piece distance-expanding component is used to drive the vacuum adsorption component to split from the second direction to equally space the plurality of battery cells; wherein, the first direction and the second direction are perpendicular to each other. The device of the present invention synchronously completes transverse and longitudinal distance expansion through an integrated device, effectively simplifies the three independent processes of transverse distance expansion, transfer, and longitudinal distance expansion in the prior art, shortens the production cycle, and at the same time directly completes distance expansion within a single device, avoiding misalignment, offset, or damage of the battery cells caused by transfer after transverse distance expansion, thereby improving the battery yield. Further, the coordinated driving of the transverse crank distance-expanding component and the longitudinal sliding piece distance-expanding component realizes synchronous control of two-dimensional distance expansion of the battery cells, avoiding redundant operations of repeated lifting, adsorption, and separation of the device in the traditional process.

[0026] In the high-precision distance expansion method for flexible component battery chips of the present invention, a plurality of battery chips that are neatly tiled and close to each other are adsorbed on the bottom surface of the vacuum adsorption component; the vacuum adsorption component is driven by the transverse crank distance expansion component to split from the first direction to equally space the plurality of battery chips; the vacuum adsorption component is driven by the longitudinal sliding piece distance expansion component to split from the second direction to equally space the plurality of battery chips; wherein, the first direction and the second direction are perpendicular to each other. The method of the present invention optimizes the full-process automatic control by synergistically driving the transverse and longitudinal distance expansion actions, realizes the precise synchronization of two-dimensional distance expansion, avoids the repeated lifting, adsorption and separation operations of two independent distance expansions in the traditional process, and at the same time, this method can also avoid the offset or damage of the battery chips caused by the transfer process, and is compatible with subsequent lamination and encapsulation processes, ensuring the efficiency of the entire production chain. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of a high-precision distance expansion device for flexible component battery chips provided by an embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of a vacuum adsorption component provided by an embodiment of the present invention;

[0030] Figure 3 It is a schematic structural diagram of a transverse crank distance expansion component provided by an embodiment of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the vacuum adsorption component and the transverse crank distance expansion component assembled together provided by an embodiment of the present invention;

[0032] Figure 5 It is a schematic cross-sectional structure diagram of a crankshaft provided by an embodiment of the present invention;

[0033] Figure 6 It is a schematic structural diagram of adjacent vacuum suction blocks in a close state provided by an embodiment of the present invention;

[0034] Figure 7 It is a schematic structural diagram of adjacent vacuum suction blocks in an expanded state provided by an embodiment of the present invention;

[0035] Figure 8 It is a schematic structural diagram of a longitudinal sliding piece distance expansion component provided by an embodiment of the present invention;

[0036] Figure 9 Structural schematic diagram of the support frame provided by an embodiment of the present invention;

[0037] Figure 10 Another structural schematic diagram of the lateral crank distance-expanding assembly provided by an embodiment of the present invention.

[0038] Explanation of reference numerals:

[0039] 100, High-precision distance-expanding device for flexible component battery cells;

[0040] 110, Support frame; 111, Lateral power support; 112, Longitudinal track plate; 113, Lifting connection support;

[0041] 120, Vacuum adsorption assembly; 121, Vacuum suction block; 1211, Vacuum suction port; 1212, Vacuum docking port; 1213, Accommodating groove; 1214, Through hole; 1215, Elastic member support column; 122, Elastic member;

[0042] 130, Lateral crank distance-expanding assembly; 131, Lateral drive mounting plate; 1311, Gear cover; 132, First driving member; 1321, First driving member mounting seat; 133, Driving gear; 134, Driving gear transmission shaft; 135, Three-joint universal coupling; 136, Crank shaft; 137, Bevel gear; 138, Bevel gear synchronous connection shaft; 1381, Synchronous shaft fixing plate; 139, Crank shaft positioning plate;

[0043] 140, Longitudinal sliding piece distance-expanding assembly; 141, Second driving member; 142, Movable slider; 143, Sliding guide rail; 144, Slider positioning plate; 145, Distance-expanding guide post; 146, Limit guide post; 147, Limit ring;

[0044] 150, Lifting assembly. Detailed implementation manners

[0045] In the present invention, unless otherwise stated, orientation terms such as "upper, lower, left, right" generally refer to the orientation understood in combination with the drawings and actual applications.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] The endpoints and any values of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the endpoint values of each range, the endpoint values of each range and the individual point values, and the individual point values can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article. Among them, the terms "optional" and "optional" all mean that they may be included or not included (or may be present or not).

[0049] It should be noted that in the production process of flexible solar cells, hundreds of small-sized cells need to be bonded to a flexible circuit board, with equal gaps between adjacent cells to form a flexible solar cell. In this way, when the flexible solar cell needs to be used, the flexible circuit board can be unfolded to achieve the flattening of multiple cells to increase the contact area between the cells and the sun, thereby realizing the photovoltaic power generation function of the flexible solar cell and ensuring power generation efficiency; when the flexible solar cell is not needed, the flexible circuit board can be rolled up for easy storage and save space. In this process, since there is a certain gap between adjacent cells, the cells will not interfere with the rolling of the flexible circuit board, which is convenient for the storage of the flexible solar cell.

[0050] In this embodiment, the battery cells are arranged in a rectangular shape, and the size of the battery cells is 50mm*30mm. It is obviously inappropriate to manually arrange the small pieces of such size and quantity (time-consuming and labor-intensive, with high time and labor costs, not suitable for mass production, and prone to different spacings between adjacent battery cells, affecting the quality of flexible solar cells). Therefore, the multiple battery cells are first laid out neatly and close to each other, and then the flexible component battery cell high-precision distance expansion device 100 of the present invention is used to expand the distance of the multiple battery cells. However, it is not limited to this. In other embodiments, the size of the battery cell may be 40mm*40mm, or 30mm*30mm, and the size of the battery cell is not specifically limited.

[0051] like Figure 1As shown in the figure, the present invention provides a high-precision distance-expanding device 100 for flexible component battery cells, which includes a support frame 110, a vacuum adsorption component 120, a transverse crank distance-expanding component 130, and a longitudinal sliding plate distance-expanding component 140; the vacuum adsorption component 120 is arranged inside the support frame 110, and the vacuum adsorption component 120 is used to adsorb a plurality of battery cells that are neatly tiled and close to each other through the bottom surface; the transverse crank distance-expanding component 130 is arranged on the support frame 110, and a part of the transverse crank distance-expanding component 130 passes through the vacuum adsorption component 120 from the second direction, and the transverse crank distance-expanding component 130 is used to drive the vacuum adsorption component 120 to split from the first direction to equally space the plurality of battery cells; the longitudinal sliding plate distance-expanding component 140 is arranged on the support frame 110, and a part of the longitudinal sliding plate distance-expanding component 140 passes through the vacuum adsorption component 120 from the first direction, and the longitudinal sliding plate distance-expanding component 140 is used to drive the vacuum adsorption component 120 to split from the second direction to equally space the plurality of battery cells; wherein, the first direction and the second direction are perpendicular to each other. The present invention can simultaneously achieve the transverse distance expansion and the longitudinal distance expansion of the battery cells on a set of devices. By integrating the transverse and longitudinal distance expansion functions, the equipment switching time is reduced, and the accuracy loss caused by multiple positioning is avoided. It not only improves the production efficiency but also reduces the negative impact brought by the transfer of the battery cells, and has the advantages of cost reduction and efficiency improvement, and improvement of product yield.

[0052] It should be noted that the first direction generally refers to the horizontal transverse direction, and the second direction refers to the horizontal longitudinal direction.

[0053] Preferably, as Figure 2 shown, the vacuum adsorption component 120 includes a plurality of vacuum suction blocks 121, and the plurality of vacuum suction blocks 121 are closely attached in an array. A part of the transverse crank distance-expanding component 130 passes through the gaps between the plurality of vacuum suction blocks 121 in an array from the first direction, and a part of the longitudinal sliding plate distance-expanding component 140 passes through the plurality of vacuum suction blocks 121 in an array itself from the second direction. The transverse crank distance-expanding component 130 splits the plurality of vacuum suction blocks 121 from the first direction by expanding the gaps between the plurality of vacuum suction blocks 121, thereby equally spacing the plurality of battery cells; the longitudinal sliding plate distance-expanding component 140 splits the plurality of vacuum suction blocks 121 from the second direction by moving a certain distance between the bodies of the plurality of vacuum suction blocks 121, thereby equally spacing the plurality of battery cells.

[0054] It can be understood that the modular array design can adapt to the battery cell layouts of different sizes, and at the same time is convenient for maintenance and local replacement, reducing the use cost. The tightly attached state ensures that there is no displacement offset of the battery cells during the initial adsorption, laying a foundation for subsequent precise distance expansion.

[0055] Preferably, as Figure 2As shown, the vacuum suction block 121 has a long strip structure. Each vacuum suction block 121 is vertically arranged. The bottom surface of the vacuum suction block 121 has a vacuum suction port 1211, and the top of the vacuum suction block 121 has a vacuum connection port 1212. The vertically arranged long strip structure can provide a continuous adsorption area and maximize the utilization of the space height.

[0056] It can be understood that the vacuum suction port 1211 at the bottom adopts a stepped gradually expanding flow channel design to ensure that the vacuum suction port 1211 has sufficient adsorption area and enhance the adsorption force. The vacuum connection port 1212 at the top realizes rapid gas circuit connection, which is convenient for maintenance and replacement.

[0057] Preferably, as Figure 3 shown, the transverse crank distance-expanding assembly 130 includes two transverse drive mounting plates 131, a first drive member 132, a plurality of drive gears 133, a plurality of drive gear transmission shafts 134, a plurality of three-joint universal couplings 135, and a plurality of crank shafts 136; the two transverse drive mounting plates 131 are respectively arranged on two opposite side surfaces of the support frame 110 along the second direction; one first drive member 132 is arranged at each end of each transverse drive mounting plate 131; a plurality of drive gears 133 are connected between the two first drive members 132 of each transverse drive mounting plate 131, and the plurality of drive gears 133 are arranged in sequence and mesh with each other one by one; the tops of the plurality of drive gear transmission shafts 134 pass through the transverse drive mounting plates 131 and are respectively connected to the bottoms of the plurality of drive gears 133 in one-to-one correspondence; the plurality of three-joint universal couplings 135 are respectively connected to the bottoms of the plurality of drive gear transmission shafts 134 in one-to-one correspondence; one crank shaft 136 is arranged between every two three-joint universal couplings 135 that are opposite to each other along the second direction, and the axial direction of the crank shaft 136 is parallel to the second direction.

[0058] Preferably, the first drive member 132 is arranged on the transverse drive mounting plate 131 through a first drive member mounting seat 1321.

[0059] It can be understood that the number of drive gears 133 can be odd or even. When the number of drive gears 133 is odd, the rotation directions of the outermost two drive gears 133 are the same. Therefore, the rotation directions of the output shafts of the two first drive members 132 are also the same. When the number of drive gears is even, the rotation directions of the outermost two drive gears 133 are opposite. Therefore, the rotation directions of the output shafts of the two first drive members 132 are also opposite. The number of drive gears 133 does not affect the technical solution of the present invention.

[0060] It should be noted that the number of drive gears 133 on the two transverse drive mounting plates 131 should be the same and correspond to each other one by one, and the rotation directions of the drive gears 133 and the output shafts of the first drive members 132 should also correspond to each other one by one.

[0061] It should be noted that the number of drive gear transmission shafts 134, three-joint universal couplings 135 and crank shafts 136 should be the same as the number of drive gears 133 on one drive mounting plate.

[0062] During specific operation, the first driving members 132 on the two transverse drive mounting plates 131 operate synchronously, respectively driving the drive gears 133 on their respective transverse drive mounting plates 131 to rotate. Each drive gear 133 rotates to drive the drive gear transmission shaft 134 at its bottom to rotate. The drive gear transmission shaft 134 is transmitted to the crank shaft 136 through the three-joint universal coupling 135, thereby driving the crank shaft 136 to rotate. Therefore, the rotation directions of every two adjacent crank shafts 136 are also opposite.

[0063] Furthermore, as Figure 3 shown, the transverse crank stroke-expanding assembly 130 further includes gear covers 1311. A semi-open gear cover 1311 is also provided on each transverse drive mounting plate 131. Each gear cover 1311 is used to shield the outside and top of the first driving member 132 and the outside and top of the drive gear 133 on each transverse drive mounting plate 131 to prevent objects from entering the drive gear 133 during the operation of the device, which may affect the operation or even cause safety accidents.

[0064] Furthermore, as Figure 3 shown, the transverse crank stroke-expanding assembly 130 further includes two bevel gears 137, two synchronizing shaft fixing plates 1381 and a bevel gear synchronizing connecting shaft 138. The two bevel gears 137 are respectively arranged on the drive gears 133 in the middle on the two transverse drive mounting plates 131 (when the number of drive gears 133 is odd, it is the middle drive gear 133; when it is even, it is one of the two drive gears 133 in the very middle). The two synchronizing shaft fixing plates 1381 are respectively arranged on the inner sides of the middles of the two transverse drive mounting plates 131. The bevel gear synchronizing connecting shaft 138 is arranged between the two synchronizing shaft fixing plates 1381 and its axial direction is parallel to the second direction. Both ends of the bevel gear synchronizing connecting shaft 138 also have gears and are respectively meshed with the two bevel gears 137. During specific operation, the present invention first controls the rotation speed of the first driving member 132 to ensure that the rotation speeds of the drive gears 133 on the two drive mounting plates are the same, and then further ensures that the rotation speeds of the drive gears 133 on both sides are the same through the bevel gears 137 and the bevel gear synchronizing connecting shaft 138, thereby ensuring the accuracy of the battery cell stroke expansion.

[0065] Preferably, the first driving member 132 is a drive motor, a pneumatic motor or a hydraulic motor.

[0066] Preferably, as Figures 2 to 4As shown, both sides of each vacuum suction block 121 are provided with receiving grooves 1213. A crankshaft 136 is disposed through the first strip-shaped space formed by the receiving grooves 1213 of every two adjacent columns of vacuum suction blocks 121. The receiving grooves 1213 achieve the dual functions of mechanical linkage and positioning. The crankshaft 136 can abut against the receiving grooves 1213 to expand the gaps between multiple vacuum suction blocks 121. At the same time, the receiving grooves 1213 also define the movement trajectory of the crankshaft 136, preventing plane offset during lateral distance expansion.

[0067] Preferably, as Figures 5 to 7 shown, the crankshaft 136 has a first shaft diameter and a second shaft diameter in the radially perpendicular directions. The first shaft diameter is not greater than the maximum width when the two receiving grooves 1213 are closed, and the second shaft diameter is greater than the maximum width when the two receiving grooves 1213 are closed. When the lateral crank distance expansion assembly 130 has not started to expand the distance, the first shaft diameter of each crankshaft 136 is in the horizontal direction and the second shaft diameter is in the vertical direction. At this time, because the first shaft diameter is not greater than the maximum width when the two receiving grooves 1213 are closed, every two adjacent columns of vacuum suction blocks 121 are still in a close state. When the lateral crank distance expansion assembly 130 starts to expand the distance, the first shaft diameter of each crankshaft 136 is in the vertical direction and the second shaft diameter is in the horizontal direction. At this time, because the second shaft diameter is greater than the maximum width when the two receiving grooves 1213 are closed, every two adjacent columns of vacuum suction blocks 121 are expanded from each other in the first direction to separate multiple solar cells at equal intervals.

[0068] During specific operation, in the initial state, the first shaft diameter of each crankshaft 136 is in the horizontal direction and the second shaft diameter is in the vertical direction; when starting to expand the distance, the rotation directions of every two adjacent crankshafts 136 are opposite. The first shaft diameter of each crankshaft 136 gradually turns to the vertical direction, and the second shaft diameter gradually turns to the horizontal direction. Each crankshaft 136 gradually exerts a thrust on the vacuum suction blocks 121 on both sides, and the space between every two adjacent vacuum suction blocks 121 is gradually expanded. Finally, when the first shaft diameter of each crankshaft 136 is in the vertical direction and the second shaft diameter is in the horizontal direction, the space between every two adjacent vacuum suction blocks 121 is expanded to a preset distance.

[0069] It should be noted that during the above operation process, because the distance between the vacuum suction blocks 121 will gradually increase, the connecting head connecting the three-joint universal coupling 135 and the crankshaft 136 will generate a certain rotational angle offset outward (the offset angle is larger towards the outside), causing the crankshaft 136 to also displace a certain distance outward synchronously, ensuring sufficient displacement space between the vacuum suction blocks 121. At the same time, the vacuum suction blocks 121 move on the distance expansion guide posts 145 during lateral distance expansion, which can also ensure that each row of vacuum suction blocks 121 expands from each other along the first direction.

[0070] More preferably, as Figure 10 shown, at this time, a crankshaft positioning plate 139 is further fixedly arranged on each synchronous shaft fixing plate 1381. The bottom of the crankshaft positioning plate 139 is fixedly connected to the three-joint universal coupling 135 in the middlemost part. The crankshaft positioning plate 139 is used to fix the three-joint universal coupling 135 in the middlemost part. Then, when the distance is expanded, the crankshaft 136 in the middlemost part will not displace to both sides, and the crankshafts 136 and the vacuum suction blocks 121 on both sides thereof will move to two opposite outer sides respectively. In this way, it can be avoided that all the crankshafts 136 displace left and right together during the distance expansion, and the adjacent crankshafts 136 affect each other. The crankshaft positioning plate 139 can effectively improve the distance expansion accuracy.

[0071] Preferably, as Figure 2 , Figure 6 and Figure 7 shown, elastic members 122 are arranged on the outermost two vacuum suction blocks 121 through which both ends of the crankshaft 136 pass. The elastic members 122 are sleeved on the crankshaft 136 and match its shape. The elastic members 122 are used to keep the crankshaft 136 in abutment with the accommodation groove 1213. Specifically, two elastic member support columns 1215 are arranged on each of the outermost two vacuum suction blocks 121 through which both ends of the crankshaft 136 pass. The axial direction of the elastic member support columns 1215 is parallel to the axial direction of the crankshaft 136. The two elastic member support columns 1215 are horizontally arranged at intervals on the vacuum suction block 121 and are located below the crankshaft 136.

[0072] Preferably, as Figure 2 , Figure 6 and Figure 7 shown, the elastic member 122 is a return spring. The return spring specifically includes an annular spring part and two support parts arranged on the bottom side of the spring part. The spring part of the return spring is sleeved on the crankshaft 136. The two support parts of the return spring are respectively mounted on two adjacent elastic member support columns 1215 of the outermost two vacuum suction blocks 121. At this time, the bottom of the return spring is connected to the two vacuum suction blocks 121, and the top of the return spring is connected to the crankshaft 136. Further, it is ensured that when the crankshaft 136 expands the distance of the vacuum suction block 121 at the rotation angle, the crankshaft 136 is kept in abutment with the accommodation groove 1213, and further, the displacement of the crankshaft 136 and the vacuum suction block 121 is unified.

[0073] Preferably, as Figure 8As shown, the longitudinal sliding vane distance expansion assembly 140 includes two sets of second driving members 141, two sets of movable sliders 142, a sliding guide rail 143, a slider positioning plate 144, and a distance expansion guide post 145. Each set of second driving members 141 includes two second driving members 141. Two second driving members 141 in one of the sets are respectively arranged at one ends of two opposite sides of the support frame 110 along the second direction, and two second driving members 141 in the other set are respectively arranged at the other ends of two opposite sides of the support frame 110 along the second direction. Each set of movable sliders 142 includes a plurality of movable sliders 142. One set of movable sliders 142 is connected between each set of second driving members 141. The plurality of movable sliders 142 in each set are arranged in sequence and adjacent movable sliders 142 are connected to each other. The plurality of movable sliders 142 between the two sets are opposite to each other one by one along the first direction. The sliding guide rail 143 is arranged on the support frame 110 along the second direction. The sliding guide rail 143 is arranged on the outside of each set of movable sliders 142. Each set of movable sliders 142 is slidably connected to the corresponding sliding guide rail 143. The slider positioning plate 144 is arranged on the support frame 110. One movable slider 142 in each set of movable sliders 142 is fixed by the slider positioning plate 144, and the two fixed movable sliders 142 are aligned with each other. A distance expansion guide post 145 is arranged between every two opposite movable sliders 142 between the two sets. The axial direction of the distance expansion guide post 145 is parallel to the first direction.

[0074] During specific operation, the two second driving members 141 in each set are respectively connected to the adjacent movable sliders 142. The two second driving members 141 in each set respectively drive the adjacent movable sliders 142 to move in the direction of the respective second driving members 141 themselves. Because every two adjacent movable sliders 142 are connected to each other, when the outermost movable slider 142 moves outward, it will pull the inner movable sliders 142 one by one to move outward along the sliding guide rail 143. At the same time, because one movable slider 142 in each set of movable sliders 142 is fixed by the slider positioning plate 144, the movable sliders 142 on both sides are gradually expanded at equal distances until the movable sliders 142 on both sides of the fixed movable slider 142 are also expanded. At the same time, the distance expansion guide posts 145 between every two opposite movable sliders 142 between the two sets also perform synchronous equidistant movement along with the movement of the movable sliders 142.

[0075] Preferably, as Figure 8As shown, the side of the movable slider 142 is slidably connected to the sliding guide rail 143 through a guide block. In order to further enhance the guiding ability of the guide block, the width of the guide block is greater than the width of the movable slider 142. In this way, the guide blocks of each group of movable sliders 142 cannot be simultaneously arranged on the same sliding guide rail 143. Therefore, two sliding guide rails 143 that are parallel and spaced apart vertically are simultaneously arranged on the side of each group of movable sliders 142, so that the guide blocks of two adjacent movable sliders 142 in each group are respectively arranged on the upper and lower two sliding guide rails 143. In this way, when the movable slider 142 is displaced, the guide blocks between them will not affect each other.

[0076] Preferably, the second driving member 141 is a cylinder, an electric cylinder or a hydraulic cylinder.

[0077] Preferably, as Figure 2 and Figure 8 As shown, two through holes 1214 distributed diagonally are provided on the side of each vacuum suction block 121, and a distance-expanding guide post 145 is inserted into each second strip-shaped space formed by the through holes 1214 of each row of vacuum suction blocks 121. Since there are two through holes 1214 on each vacuum suction block 121, two distance-expanding guide posts 145 arranged along the first direction are penetrated through each row of vacuum suction blocks 121.

[0078] Preferably, since the vacuum suction block 121 needs to move on the distance-expanding guide post 145 when expanding laterally, it is necessary to ensure the stability of the movement. In the present invention, through holes 1214 are arranged at the diagonal positions above and below the position where the crankshaft 136 of the vacuum suction block 121 passes through. In this way, first, the mutual influence between the distance-expanding guide post 145 and the crankshaft 136 can be avoided, and at the same time, the diagonal arrangement can also ensure the stability of the movement of the vacuum suction block 121 on the distance-expanding guide post 145.

[0079] Preferably, as Figure 8As shown, a limit guide post 146 is provided at the top of each movable slider 142, and a limit ring 147 is sleeved on the limit guide posts 146 of every two adjacent movable sliders 142 to connect the adjacent movable sliders 142 to each other. The limit ring 147 is an oval ring structure, and the limit ring 147 is sleeved on every two adjacent limit guide posts 146. When the longitudinal sliding piece distance-expanding assembly 140 has not started to expand the distance, two adjacent movable sliders 142 are in a close state. The major axis of the limit ring 147 is greater than the distance between two adjacent limit guide posts 146, and the limit ring 147 does not limit the position. When the longitudinal sliding piece distance-expanding assembly 140 starts to expand the distance, the outer movable slider 142 gradually moves outward until the major axis of the limit ring 147 is equal to the distance between two adjacent limit guide posts 146. At this time, the outer movable slider 142 will pull the inner movable slider 142 through the limit ring 147, and the distance of expansion between every two adjacent movable sliders 142 is the major axis of the limit ring 147.

[0080] Preferably, as Figure 1 shown, the flexible component battery cell high-precision distance-expanding device 100 further includes a lifting assembly 150. The lifting assembly 150 is connected to the top of the support frame 110 and is used to drive the support frame 110 to rise or fall. The lifting assembly 150 includes a third driving member and a lifting frame. The third driving member is connected to the lifting frame, and the lifting frame is connected to the top of the support frame 110. The third driving member can drive the support frame 110 to rise or fall through the lifting frame, so as to drive the entire distance-expanding device to rise or fall, facilitating the realization of the distance-expanding function.

[0081] Preferably, the third driving member is a cylinder, an electric cylinder or a hydraulic cylinder.

[0082] Preferably, as Figure 9 shown, the support frame 110 includes two transverse power supports 111 arranged oppositely at intervals in the first direction and two longitudinal track plates 112 arranged oppositely at intervals in the second direction. The two transverse power supports 111 and the two longitudinal track plates 112 jointly enclose a rectangular support structure with a hollow middle part. The middle part of the longitudinal track plate 112 extends upward along the vertical direction for a part, and a lifting connection bracket 113 is arranged on the extended parts of the two longitudinal track plates 112. The lifting assembly 150 is fixedly connected to the lifting connection bracket 113.

[0083] Among them, the two transverse driving mounting plates 131 of the transverse crank distance-expanding assembly 130 are respectively arranged on the two transverse power supports 111. Two of the second driving members 141 in one group of the longitudinal sliding piece distance-expanding assembly 140 are respectively arranged at one end of the outer sides of the two transverse power supports 111, and the two second driving members 141 in the other group are respectively arranged at the other end of the outer sides of the two transverse power supports 111.

[0084] Preferably, the high-precision distance-expanding device 100 for flexible component battery chips further includes a vacuum pumping assembly, which includes a vacuum pump and multiple branch pipes. The vacuum pump is connected to multiple branch pipes simultaneously, and each branch pipe is communicated with a vacuum docking port 1212 to realize the vacuum adsorption function of each vacuum suction port 1211 and ensure the vacuum adsorption effect.

[0085] Preferably, the vacuum pumping assembly further includes a main pipe, a vacuum gas distribution block, multiple sub-pipes and a manifold. The vacuum pump is connected to the vacuum gas distribution block through the main pipe, the vacuum gas distribution block is connected to the manifold through multiple sub-pipes, and the manifold is communicated with multiple vacuum docking ports 1212 through multiple branch pipes. The vacuum gas distribution block is used to realize the primary gas distribution function, and the manifold is used to realize the secondary gas distribution function. Specifically, through the two-stage gas distribution of the vacuum gas distribution block and the manifold, the relatively thick main pipe is gradually divided into multiple relatively thin branch pipes and communicated with multiple vacuum docking ports 1212, avoiding the situation that the vacuum pump directly leads out multiple vacuum pipelines to connect multiple vacuum docking ports 1212, thereby avoiding problems such as uneven air flow in multiple vacuum pipelines caused by large changes in pipeline diameter, and then realizing the step-by-step transition function, ensuring the pressure balance of multiple pipes (multiple sub-pipes or multiple branch pipes) at the same level, and making the entire vacuum pumping system stable and reliable.

[0086] In a second aspect, the present invention provides a high-precision distance-expanding method for flexible component battery chips. The method is applied to the high-precision distance-expanding device 100 for flexible component battery chips, and the high-precision distance-expanding method for flexible component battery chips includes:

[0087] Adsorbing a plurality of battery chips that are neatly tiled and close to each other through the bottom surface of the vacuum adsorption assembly 120;

[0088] Driving the vacuum adsorption assembly 120 to split from the first direction through the transverse crank distance-expanding assembly 130 to equally space the plurality of battery chips;

[0089] Driving the vacuum adsorption assembly 120 to split from the second direction through the longitudinal sliding piece distance-expanding assembly 140 to equally space the plurality of battery chips;

[0090] Wherein, the first direction and the second direction are perpendicular to each other.

[0091] Preferably, the high-precision distance-expanding method for flexible component battery chips of the present invention may further include:

[0092] Before adsorbing the battery chips, driving the support frame 110 to descend through the lifting assembly 150 so that the bottom surface of the vacuum adsorption assembly 120 is close to the plurality of battery chips;

[0093] After adsorbing the battery chips, driving the support frame 110 to ascend through the lifting assembly 150 and starting to expand the distance through the transverse crank distance-expanding assembly 130 and the longitudinal sliding piece distance-expanding assembly 140;

[0094] After the distance expansion is completed, the lifting assembly 150 drives the support frame 110 to descend so that the vacuum adsorption assembly 120 puts down a plurality of battery cells;

[0095] After putting down the battery cells, the lifting assembly 150 drives the support frame 110 to rise.

[0096] The method of the present invention optimizes the full-process automatic control by coordinately driving the lateral and longitudinal distance expansion actions, realizes the precise synchronization of two-dimensional distance expansion, avoids the repeated lifting, adsorption and separation operations of two independent distance expansions in the traditional process. At the same time, this method can also avoid the offset or damage of the battery cells caused by the transfer process, and is compatible with the subsequent lamination and encapsulation processes, ensuring the efficiency of the entire production chain.

[0097] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited thereto. Within the technical concept scope of the present invention, various simple modifications can be made to the technical solutions of the present invention, including any other suitable combination of each technical feature. These simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.

Claims

1. A high-precision device for expanding the distance between flexible component battery cells, characterized in that, Including: A support frame; A vacuum adsorption assembly, which is arranged inside the support frame and is used to adsorb a plurality of battery cells that are neatly tiled and close to each other through the bottom surface; A transverse crank distance-expanding assembly, which is arranged on the support frame, and a part of the transverse crank distance-expanding assembly passes through the vacuum adsorption assembly from the second direction, and the transverse crank distance-expanding assembly is used to drive the vacuum adsorption assembly to split from the first direction to equally space the plurality of battery cells; A longitudinal sliding piece distance-expanding assembly, which is arranged on the support frame, and a part of the longitudinal sliding piece distance-expanding assembly passes through the vacuum adsorption assembly from the first direction, and the longitudinal sliding piece distance-expanding assembly is used to drive the vacuum adsorption assembly to split from the second direction to equally space the plurality of battery cells; Wherein, the first direction and the second direction are perpendicular to each other; The vacuum adsorption assembly includes a plurality of vacuum suction blocks, and the plurality of vacuum suction blocks are closely attached in an array; The transverse crank distance-expanding assembly includes: Two transverse drive mounting plates, which are respectively arranged on two opposite side surfaces of the support frame along the second direction; A first driving member, and one first driving member is arranged at each end of each transverse drive mounting plate; A plurality of drive gears, and a plurality of the drive gears are connected between the two first driving members of each transverse drive mounting plate, and the plurality of drive gears are arranged in sequence and mesh with each other one by one; A plurality of drive gear transmission shafts, and the tops of the plurality of drive gear transmission shafts pass through the transverse drive mounting plate and are respectively connected to the bottoms of the plurality of drive gears in a one-to-one correspondence; A plurality of three-joint universal couplings, and the plurality of three-joint universal couplings are respectively connected to the bottoms of the plurality of drive gear transmission shafts in a one-to-one correspondence; A plurality of crank shafts, and one crank shaft is arranged between every two three-joint universal couplings that are opposite to each other along the second direction, and the axial direction of the crank shaft is parallel to the second direction.

2. The high-precision distance-expanding device for flexible component battery chips according to claim 1, wherein The vacuum suction block is in a strip-shaped structure, each vacuum suction block is vertically arranged, the bottom surface of the vacuum suction block has a vacuum suction port, and the top of the vacuum suction block has a vacuum docking port.

3. The high-precision distance-expanding device for flexible component battery chips according to claim 1, characterized in that Each side of each vacuum suction block has a receiving groove, and one of the crank shafts passes through the first strip-shaped space formed by the receiving grooves of every two adjacent columns of vacuum suction blocks.

4. The high-precision distance-expanding device for flexible component battery chips according to claim 3, wherein The crank shaft has a first shaft diameter and a second shaft diameter in the mutually perpendicular radial directions, the first shaft diameter is not greater than the maximum width when the two receiving grooves are closed, and the second shaft diameter is greater than the maximum width when the two receiving grooves are closed.

5. The high-precision distance-expanding device for flexible component battery cells according to claim 3, wherein Elastic members are arranged on the outermost two vacuum suction blocks passed through by both ends of the crank shaft, the elastic members are sleeved on the crank shaft and match its shape, and the elastic members are used to keep the crank shaft in contact with the receiving groove.

6. The high-precision distance-expanding device for flexible component battery chips according to claim 1, characterized in that The longitudinal sliding piece distance-expanding assembly includes: Two sets of second driving members, each set of the second driving members including two of the second driving members, wherein the two second driving members in one set are respectively arranged at one ends of two opposite sides of the support frame along the second direction, and the two second driving members in the other set are respectively arranged at the other ends of the two opposite sides of the support frame along the second direction; Two sets of movable sliders, each set of the movable sliders including a plurality of the movable sliders, and one set of the movable sliders is connected between each set of the second driving members. The plurality of movable sliders in each set are arranged in sequence and adjacent movable sliders are connected to each other. The plurality of movable sliders between the two sets are opposite to each other one by one along the first direction; Sliding guide rails, the sliding guide rails are arranged on the support frame along the second direction, and the sliding guide rails are arranged on the outside of each set of the movable sliders. Each set of the movable sliders is slidably connected to the corresponding sliding guide rail; Slider positioning plates, the slider positioning plates are arranged on the support frame, and one of the movable sliders in each set of the movable sliders is fixed by the slider positioning plate, and the two fixed movable sliders are aligned with each other; Spacer guide posts, the spacer guide posts are arranged between every two opposite movable sliders between the two sets, and the axial direction of the spacer guide posts is parallel to the first direction.

7. The high-precision distance-expanding device for flexible component battery chips according to claim 6, wherein Each side surface of each vacuum suction block has two through holes distributed diagonally, and one of the spacer guide posts is penetrated through each second strip-shaped space formed by the through holes of each row of the vacuum suction blocks.

8. The high-precision distance-expanding device for flexible component battery cells according to claim 6, wherein, A limit guide post is arranged on the top of each movable slider, and a limit ring is sleeved on the limit guide posts of every two adjacent movable sliders so that the adjacent movable sliders are connected to each other.

9. The high-precision distance-expanding device for flexible component battery chips according to claim 1, wherein The high-precision spacer device for flexible component battery slices further includes a lifting component, and the lifting component is connected to the top of the support frame and is used to drive the support frame to rise or fall.

10. The high-precision distance-expanding device for flexible component battery chips according to claim 2, wherein, The high-precision spacer device for flexible component battery slices further includes a vacuum pumping component, and the vacuum pumping component includes a vacuum pump and a plurality of branch pipes. The vacuum pump is connected to the plurality of branch pipes at the same time, and each branch pipe is communicated with a vacuum connection port.

11. The high-precision distance-expanding device for flexible component battery chips according to claim 10, characterized in that, The vacuum pumping component further includes a main pipe, a vacuum gas distribution block, a plurality of sub-pipes and a manifold. The vacuum pump is connected to the vacuum gas distribution block through the main pipe. The vacuum gas distribution block is connected to the manifold through the plurality of sub-pipes. The manifold is communicated with the plurality of vacuum connection ports through the plurality of branch pipes.

12. A high-precision method for expanding the distance of flexible component battery chips, characterized in that, The method is applied to the high-precision spacer device for flexible component battery slices according to any one of claims 1 to 11, and the high-precision spacer method for flexible component battery slices includes: Adsorbing a plurality of battery slices that are laid flat neatly and close to each other through the bottom surface of the vacuum adsorption component; Driving the vacuum adsorption component to split from the first direction through the lateral crank spacer component to equally space the plurality of battery slices; Driving the vacuum adsorption component to split from the second direction through the longitudinal slide spacer component to equally space the plurality of battery slices; Wherein, the first direction and the second direction are perpendicular to each other.

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