Battery piece carrier, fragmented battery string processing method and fragmented battery string

Abstract

The invention relates to the technical field of photovoltaic cell processing, in particular to a cell piece carrier, a fragmented cell string processing method and a fragmented cell string, the carrier comprises a carrier body, the carrier body is internally provided with an adsorption cavity, the carrier body is provided with a bearing surface, the bearing surface is a plane or an arc surface, the bearing surface comprises a plurality of adsorption surfaces arranged in parallel, and the adsorption surfaces are arranged in the adsorption cavity. The size of each adsorption surface corresponds to that of each cell slice, so that each adsorption surface can adsorb one cell slice, each adsorption surface is provided with a plurality of adsorption holes, and the adsorption holes are communicated with the adsorption cavity; the adsorption surface is defined to be provided with two end adsorption areas and a middle adsorption area, and the middle adsorption area is located between the two end adsorption areas; the adsorption holes have the adjusting capacity so that the adsorption holes can be opened or closed, and the adsorption face can adsorb one battery piece in the mode that the adsorption holes located in the end adsorption areas are opened and the adsorption holes located in the middle adsorption areas are closed. By optimizing the carrier structure, the device can adapt to processing of different battery piece fragments.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic cell processing, in particular to a cell piece carrier, a piece-splitting cell string processing method and a piece-splitting cell string. BACKGROUND

[0002] In the industrial processing of photovoltaic cell pieces, in order to ensure the processing precision, such as cutting size precision and welding uniformity, the cell pieces need to be accurately fixed to avoid displacement during processing.

[0003] In the prior art, the mainstream fixing method is adsorption fixing, that is, the cell piece is fixed on the surface of the carrier by using the negative pressure adsorption principle through the carrier with an adsorption cavity. However, with the development of photovoltaic technology, the cell piece needs to be split to form multiple independent cell units, and the current adsorption carrier is not suitable for the split cell units.

[0004] Therefore, the technical problem of the prior art is that an adsorption carrier suitable for split cell units is urgently needed. SUMMARY

[0005] The present application provides a cell piece carrier, a piece-splitting cell string processing method and a piece-splitting cell string, which can adapt to the processing of different cell piece splitting by optimizing the carrier structure.

[0006] In a first aspect, the present application provides a cell piece carrier adopting the following technical solution: A cell piece carrier, comprising: A carrier body having an adsorption cavity inside, the carrier body having a bearing surface on the surface, the bearing surface being a plane or a circular arc surface, the bearing surface comprising a plurality of parallel arranged adsorption surfaces, the size of the adsorption surface corresponding to a piece of cell piece splitting to enable the adsorption surface to adsorb a piece of cell piece splitting, a plurality of adsorption holes being arranged on each adsorption surface, the adsorption holes being in communication with the adsorption cavity; Wherein, the adsorption surface is defined as having end adsorption zones and intermediate adsorption zones, the end adsorption zones are two, and the intermediate adsorption zones are located between the two end adsorption zones; the adsorption holes have an adjusting capacity to open or close the adsorption holes, so that the adsorption surface adsorbs a piece of cell piece splitting in a manner that the adsorption holes on the end adsorption zones are open and the adsorption holes on the intermediate adsorption zones are closed.

[0007] As preferred, the adjusting assembly is further included, which is located in the adsorption cavity and connected to the inner wall of the carrier body and acts on the adsorption holes to make the adsorption holes have a first state and a second state: in the first state, the adjusting assembly opens the adsorption holes; in the second state, the adjusting assembly closes the adsorption holes.

[0008] As preferred, the battery piece is divided into two, three or four pieces.

[0009] As preferred, the bearing surface is divided into 12 parallel adsorption areas, each of which has a group of adsorption holes; the adjusting assembly has multiple and is arranged one-to-one with the adsorption areas, so that the adjusting assembly can adjust the adsorption holes in the adsorption areas to be opened or closed.

[0010] As preferred, the adjusting assembly includes: a support fixedly connected to the inner wall of the carrier body; an adjusting piece corresponding to the adsorption holes, the adjusting piece being fixedly connected to the support and acting on the adsorption holes to make the adsorption holes have the first state and the second state.

[0011] As preferred, the adjusting piece is an air bag connected to an external air supply device to make the air bag act on the adsorption holes to make the adsorption holes have the first state and the second state.

[0012] As preferred, the adjusting piece can be expanded by heating and contracted by cooling to make the adjusting piece act on the adsorption holes to make the adsorption holes have the first state and the second state; the adjusting assembly further includes: a heating piece fixedly connected to the support, the heating piece being used to heat the adjusting piece so that the adjusting piece expands and touches the adsorption holes to make the adsorption holes closed; a cooling piece fixedly connected to the support, the cooling piece being used to cool the adjusting piece so that the adjusting piece shrinks and separates from the adsorption holes to make the adsorption holes opened.

[0013] As preferred, a protection assembly is further included for battery piece debris protection and collection, the protection assembly having multiple and being arranged one-to-one with the adjusting assembly, the protection assembly including: A rotating plate is located between the air bag and the adsorption hole, and is rotatably connected to the inner wall of the carrier body near one end of the support, so that the rotating plate can be driven by the air bag to be separated from the adsorption hole or to be in contact with the adsorption hole, so that the adsorption hole forms the first state and the second state; wherein, when the adsorption hole is in the first state, the rotating plate is arranged on the air bag and is inclined. A collection groove is located on one side of the air bag, and the collection groove is located on the opposite side of the air bag from the support, and the collection groove comprises: A connecting part is fixedly connected to the inner wall of the carrier body; A collection part is fixedly connected to the connecting part, and the collection part is farther away from the inner wall of the carrier body than the rotating plate, so that when the adsorption hole is in the first state, a collection channel is formed between the adsorption hole, the rotating plate and the collection part, so that the debris can be collected in the collection part through the collection channel.

[0014] In a second aspect, the application provides a method for processing a split battery string, which adopts the following technical scheme: A method for processing a split battery string is suitable for the battery piece carrier, defines the adsorption areas as the first adsorption area, the second adsorption area,..., and the twelfth adsorption area, and the method comprises the following steps: When the battery piece is split into two pieces, a negative pressure is formed in the adsorption cavity; the adjusting assembly corresponding to the adsorption area makes the adsorption holes in the first adsorption area, the sixth adsorption area, the seventh adsorption area and the twelfth adsorption area in the first state, and the adsorption holes in the remaining adsorption areas in the second state; A plurality of two-piece battery pieces to be processed are arranged on the adsorption surface in the form of being adsorbed at both ends in sequence; The two-piece battery pieces are processed in sequence; The adsorption holes on the adsorption surface corresponding to the processed two-piece battery pieces are all switched to the second state, and the processed two-piece battery pieces are removed; Or, when the battery piece is split into three pieces, a negative pressure is formed in the adsorption cavity; the adjusting assembly corresponding to the adsorption area makes the adsorption holes in the first adsorption area, the fourth adsorption area, the fifth adsorption area, the eighth adsorption area, the ninth adsorption area and the twelfth adsorption area in the first state, and the adsorption holes in the remaining adsorption areas in the second state; A plurality of three-piece battery pieces to be processed are arranged on the adsorption surface in the form of being adsorbed at both ends in sequence; The three-piece battery pieces are processed in sequence; The adsorption holes on the adsorption surface corresponding to the processed three-piece battery pieces are all switched to the second state, and the processed three-piece battery pieces are removed; Or, when the battery piece is divided into four pieces, a negative pressure is formed in the adsorption cavity; the adjusting assembly corresponding to the adsorption area makes the adsorption holes on the first adsorption area, the third adsorption area, the fourth adsorption area, the sixth adsorption area, the seventh adsorption area, the ninth adsorption area, the tenth adsorption area and the twelfth adsorption area in the first state, and the adsorption holes on the remaining adsorption areas in the second state; The four pieces to be processed are arranged on the adsorption surface in the form of being adsorbed at both ends in sequence; The four pieces are processed in sequence; The adsorption holes on the corresponding adsorption surface of the processed four pieces are all switched to the second state, and the processed four pieces are removed.

[0015] In a third aspect, the application provides a piece battery string, which adopts the following technical scheme: A piece battery string is prepared by the piece battery string processing method.

[0016] In summary, the application has at least one of the following beneficial technical effects: The carrier described in the application can flexibly adapt to pieces of battery pieces of different specifications (two pieces, three pieces, four pieces), the opening state of the adsorption holes can be adjusted without replacing the carrier body, the pieces of battery pieces are fixed in the optimal mechanical state of being adsorbed at both ends, and processing displacement and warping are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the piece battery piece described in the application; Figure 2 is a first schematic diagram of the carrier described in the application; Figure 3 is a schematic diagram of the piece battery piece described in the application; Figure 4 is a second schematic diagram of the carrier described in the application; Figure 5 is a schematic diagram of the end adsorption area and the middle adsorption area of the carrier described in the application; Figure 6 is a schematic diagram of the adsorption area of the carrier described in the application; Figure 7 is a schematic diagram of the adjusting assembly making the adsorption holes in the first state described in the application; Figure 8 is a schematic diagram of the adjusting assembly making the adsorption holes in the second state described in the application; Figure 9 is a schematic diagram of the adjusting assembly and the protection assembly making the adsorption holes in the first state described in the application; Figure 10 is a schematic diagram of the adjusting assembly and the protection assembly making the adsorption holes in the second state described in the application; Figure 11 is a schematic diagram of a collection channel of the protection assembly described in the present application; Figure 12 is a schematic diagram of a method for splitting a carrier into two parts described in the present application; Figure 13 is a schematic diagram of a state of a carrier split into three parts described in the present application; Figure 14 is a schematic diagram of a method for splitting a carrier into three parts described in the present application; Figure 15 is a schematic diagram of a state of a carrier split into three parts described in the present application; Figure 16 is a schematic diagram of a method for splitting a carrier into four parts described in the present application; Figure 17 is a schematic diagram of a state of a carrier split into four parts described in the present application.

[0018] Reference signs: 100, whole battery piece; 110, battery piece split; 111, two-part split; 112, three-part split; 113, four-part split; 200, carrier body; 201, adsorption cavity; 202, adsorption hole; 204, bearing surface; 205, adsorption surface; 206, end adsorption area; 207, middle adsorption area; 208, adsorption area; 210, adjusting assembly; 211, bracket; 212, adjusting piece; 2121, air bag; 220, protection assembly; 221, rotating plate; 222, collection groove; 2221, connecting part; 2222, collection part; 223, collection channel. DETAILED DESCRIPTION

[0019] The serial numbers of components in the present application, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. Unless otherwise specified, the terms "connected" and "coupled" in the present application include direct and indirect connections (couplings). In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] In the present application, unless specifically stated and limited otherwise, a first feature is "on" or "under" a second feature can 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, the first feature "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0021] The embodiment of the present application provides a battery piece carrier, a piece-split battery string processing method and a piece-split battery string. By optimizing the carrier structure, the processing of different battery piece splitting 110 can be adapted.

[0022] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0023] In the industrial processing of photovoltaic battery pieces, in order to ensure the processing precision, such as cutting size precision, welding uniformity and the like, the battery pieces need to be accurately fixed to avoid displacement of the battery pieces during processing. In the prior art, the mainstream fixing method is adsorption type fixing, that is, through a carrier with an adsorption cavity 201, the battery pieces are fixed on the surface of the carrier by using negative pressure adsorption principle. However, with the development of photovoltaic technology, the battery pieces need to be split to form multiple independent battery units, and the current adsorption carrier is not suitable for the split battery units. Therefore, the technical problem of the prior art is that an adsorption carrier suitable for the split battery units is urgently needed.

[0024] In the industrial processing flow of photovoltaic cells, the cell needs to be laid with solder strip and welded. For example, the cutting process, the cutting size tolerance of mainstream cell technologies such as PERC, TOPCon and BC needs to be controlled within ±0.1mm. If it exceeds this range, the uneven gap between the cells during subsequent string welding will cause the current loss of the module to increase, and the power attenuation can reach 3%-5%. Therefore, the relative position between the processing tool and the cell needs to be stable. The substrate of the photovoltaic cell is a single crystal / polycrystalline silicon sheet with a thickness of only 0.16-0.2mm, which is a typical thin and brittle component. It is prone to deformation or fragmentation under external force or thermal stress. Therefore, if the cell is displaced or warped during processing, not only will it damage the preset alignment relationship between the processing tool (such as the cutting wheel or the coating nozzle) and the cell, but it may also cause the cell edge to crack due to stress concentration, resulting in a sharp decline in processing yield. Therefore, precise fixation is a prerequisite for ensuring the processing accuracy of photovoltaic cells, and the fixation method needs to meet the requirements of no displacement (position accuracy) and no warping (shape stability) at the same time. Based on this, a technology for adsorbing and fixing the cell is proposed.

[0025] Early photovoltaic cell processing uses a planar adsorption carrier, which adsorbs the cell through a planar negative pressure cavity. Although it can achieve basic fixation, it has inherent defects: thermal stress warping cannot be alleviated. For example, in the welding process, the local temperature of the cell is relatively high, and the thermal expansion coefficients of the cell and the solder strip are different, resulting in a stress difference between them. The planar carrier cannot guide pre-deformation, and the stress will accumulate to cause the cell to warp upward. To solve the above problem, the technical field has begun to explore arc-shaped adsorption carriers: by loading the cell with an arc-shaped carrier, the pre-arc radius offsets the thermal stress, and the arc-shaped surface of the carrier can form a preset arc after the cell is adsorbed. The arc is opposite to the warping direction during processing, and can offset the warping stress caused by thermal expansion through pre-deformation stress. When the cell is adsorbed on the arc surface, it is essentially a mechanical system of two-point fixation + arc constraint, i.e. the two end adsorption points provide downward adsorption force, and the arc surface provides upward support force, forming a moment balance to make the cell tightly adhere to the arc surface, so that the two ends of the cell do not warp upward. As an optimization, no adsorption hole 202 can be added to the arc surface, which will affect the cell adsorption effect. As can be understood, if only the two ends are provided with adsorption holes 202, the adsorption force is concentrated at the end, which can ensure that the end is tightly attached to the arc surface without gap. If adsorption holes 202 are added in the middle, the adsorption force will be distributed to the entire contact surface, and the end will not be tightly attached due to insufficient pressure. The end may warp upward during processing vibration. Therefore, the combination of arc-shaped carrier + two-end adsorption is the inevitable technical choice that takes into account the requirements of anti-warping, high adhesion and dynamic processing, and has become the mainstream solution.

[0026] With the upgrade of photovoltaic module power to 700W+, 800W+, etc. Figure 1As shown, the multi-slice technology (two-slice 111, i.e. half-slice, three-slice 112, four-slice 113) becomes the core technology path. When the battery slices are connected in series, the current is proportional to the area of the single battery slice. After cutting the whole battery slice 100 (such as 182mmx182mm) into four-slices 113, the single slice area is reduced to 1 / 4, and the series current is also reduced to 1 / 4. According to the Joule law, the line loss can be reduced to 1 / 16, and the assembly power is increased by 5%-8%. After slicing, the size of the battery slice is reduced, and the bending strength of the battery slice itself is improved, so that the crack rate is reduced by 60%-70% during transportation and installation. The battery slice slicing 110 can use stacking welding, splicing and other packaging processes, and the internal gap of the assembly is reduced from 2mm-3mm to 0.5mm-1mm, and the power density per unit area is increased by 10%-15%.

[0027] However, as Figure 1 As shown, the existing arc surface carrier and battery slice slicing 110 fail to adapt. The arrangement of the adsorption holes 202 of the existing carrier is designed based on the size of the whole battery slice 100 (for example, a whole slice of 182mmx182mm). The spacing and position parameters of the adsorption holes 202 are fixed (for example, the two end adsorption holes 202 are 8mm-10mm away from the edge, and the hole spacing is 160mm-170mm). The size change of the battery slice slicing 110 after slicing directly causes the adsorption hole 202 and the end position to be misaligned. Specifically: Two-slice 111 adaptation failure: after cutting the whole slice 182mmx182mm into two-slices 111, the single slice size is 91mmx182mm, and the original adsorption hole 202 spacing is 160mm, which is much larger than the length of the two-slice 111, 91mm. If the two-slice 111 is placed on the original carrier, only one end can be adsorbed and the other end is suspended, the fixing stability is reduced, and displacement is easy to occur during processing; Four-slice 113 adaptation failure: the size of the four-slice 113 is 45.5mmx182mm, and the original adsorption hole 202 is 8mm away from the edge, corresponding to the middle position of the four-slice 113 (45.5mm / 2=22.75mm). The adsorption hole 202 is completely deviated from the end, resulting in no effective adsorption, and the fixing force tends to zero, which cannot meet the processing requirements; Three-slice 112 adaptation special failure: after cutting the whole slice 182mm into three-slices 112, the single slice length is about 60.67mm, which is neither 1 / 2 nor 1 / 4 of the whole slice. The misalignment amount of the original adsorption hole 202 and the end of the three-slice 112 is 39.33mm. Even if the placement position of the battery slice is adjusted, only partial adsorption (the adsorption hole 202 covers 1 / 3 of the end area) can be achieved. The adsorption pressure is reduced to below 0.01MPa, which cannot resist the processing vibration.

[0028] More seriously, the adsorption cavity 201 of the existing carrier is designed in a whole piece (a single cavity corresponds to a whole battery piece 100), and if forcibly used for multi-slices, cross-slice adsorption interference will occur. For example, when two slices 111 share an adsorption cavity 201, the adsorption force at one end will be transmitted to the other end through the cavity negative pressure, resulting in uneven adsorption force of the two battery piece slices 110, which is easy to cause edge cracking. To solve the multi-slice adaptation problem, the industry has tried two temporary solutions, but both have obvious defects: replacing the special adsorption carrier: designing a dedicated carrier for each slice type (such as a two-slice 111 carrier and a three-slice 112 carrier), but the photovoltaic production line needs to be compatible with multiple slice types (such as switching between two-slice 111 and four-slice 113 on the same production line), and replacing the carrier requires downtime of 30 minutes to 1 hour, reducing equipment utilization, and the cost of purchasing multiple sets of carriers increases; adjustable adsorption hole 202 structure: setting a slidable adsorption hole 202 module on the surface of the carrier, and adjusting the module position to adapt to different slices, but the sealing between the sliding module and the carrier is difficult, and the adjustment accuracy of the module can only reach ±1mm, which cannot meet the micron-level fitting requirements, and the actual adaptation effect is poor.

[0029] Therefore, the existing technical solutions cannot meet the needs of multi-slice compatibility, high fitting precision, and low cost maintenance, and there is an urgent need for an adsorption carrier that can be flexibly adapted and maintain the best state of two-end adsorption + fitting, which is the only way to solve the current technical bottleneck.

[0030] The present application provides a battery piece carrier, as shown in Figure 2 、 3 , which comprises a carrier body 200, the carrier body 200 has an adsorption cavity 201 inside, and the carrier body 200 has a bearing surface 204, the bearing surface 204 is a plane or a circular arc surface, the bearing surface 204 comprises a plurality of parallel adsorption surfaces 205, the size of the adsorption surface 205 corresponds to a battery piece slice 110, so that the adsorption surface 205 can adsorb a battery piece slice 110, a plurality of adsorption holes 202 are arranged on each adsorption surface 205, and the adsorption holes 202 are communicated with the adsorption cavity 201; wherein the adsorption surface 205 is defined as having an end adsorption area 206 and an intermediate adsorption area 207, the end adsorption area 206 has two, and the intermediate adsorption area 207 is located between the two end adsorption areas 206; the adsorption hole 202 has an adjusting capacity to open or close the adsorption hole 202, so that the adsorption surface 205 adsorbs a battery piece slice 110 in a way that the adsorption hole 202 on the end adsorption area 206 is open and the adsorption hole 202 on the intermediate adsorption area 207 is closed.

[0031] Specifically, as shown in Figure 2 、 3As shown in Figure 4, the carrier body 200 has a hollow internal structure, with an adsorption cavity 201 formed inside to provide adsorption force. The top, side, or peripheral side of the carrier body 200 is set as the bearing surface 204 for supporting the solar cell slabs 110. Considering the requirements of different processing steps (such as the cutting process requiring a flat bearing to ensure dimensional accuracy, and the welding process requiring a curved bearing to offset thermal stress), the bearing surface 204 can be set as a flat or curved surface. The curvature of the curved surface needs to match the curvature of the mainstream curved carrier in photovoltaic processing to ensure that the warping stress caused by the difference in thermal expansion coefficients between the solar cell and the welding strip during welding can be offset by pre-deformation.

[0032] like Figure 2 , 3 As shown in Figure 4, the supporting surface 204 is provided with several parallel adsorption surfaces 205. The size of each adsorption surface 205 corresponds to the size of a battery cell segment 110, that is, the size of each adsorption surface 205 matches the size of a battery cell segment 110, so that a single adsorption surface 205 can independently adsorb a battery cell segment 110. It should be noted that the size of the adsorption surface 205 corresponding to the size of a battery cell segment 110 means that the size of the adsorption surface 205 is basically equal to the size of the battery cell segment, or the adsorption surface 205 is slightly larger than the battery cell segment to form gaps between the battery cell segments to meet processing requirements. Each adsorption surface 205 is provided with several adsorption holes 202. These adsorption holes 202 penetrate through the thickness direction of the adsorption surface 205 and are directly connected to the adsorption cavity 201 inside the carrier body 200. When a negative pressure is formed in the adsorption cavity 201, the negative pressure can act on the surface of the battery cell segment 110 through the adsorption holes 202 to achieve adsorption and fixation of the segment.

[0033] Furthermore, such as Figure 5 As shown, in order to ensure that the cell slab 110 is fixed in the optimal mechanical state, this application further divides each adsorption surface 205 into an end adsorption region 206 and an intermediate adsorption region 207: there are two end adsorption regions 206, which are located at the two ends of the adsorption surface 205 in the arrangement direction of the adsorption surface 205; the intermediate adsorption region 207 is located between the two end adsorption regions 206. Understandably, this partitioning method is adopted because the battery cell slab 110 is a thin and brittle component. If the adsorption holes 202 in the middle area are opened, the adsorption force will be dispersed to the entire adsorption surface 205, resulting in insufficient adsorption pressure at the ends and easy warping of the ends during processing vibration. However, by only opening the adsorption holes 202 in the end adsorption area 206, the adsorption force can be concentrated at both ends of the slab, forming a torque balance structure of two-point fixation + support surface 204. This ensures that the slab is tightly attached to the support surface 204 (flat or arc surface), which not only avoids displacement but also offsets thermal stress through the shape of the support surface 204 (especially the arc surface), preventing warping.

[0034] Among them, such as Figure 6 , 7 As shown in Figure 8, the adsorption holes 202 have an adjustable opening or closing capability: when adsorbing the battery cell slices 110, the adsorption holes 202 located on the end adsorption area 206 are kept open, while the adsorption holes 202 located on the middle adsorption area 207 are kept closed, thereby achieving the fixing effect of adsorption at both ends. The state adjustment capability of the adsorption holes 202 can adapt to multiple specifications of slices, and the position of the end adsorption area 206 that needs to be opened can be flexibly adjusted according to the length of the slice.

[0035] To achieve precise control over the opening and closing states of the adsorption pores 202, the battery cell carrier of this application further includes an adjustment component 210. The adjustment component 210 is located within the adsorption cavity 201, connected to the inner wall of the carrier body 200, and acts on the adsorption pores 202 to give the adsorption pores 202 a first state and a second state: in the first state, the adjustment component 210 opens the adsorption pores 202; in the second state, the adjustment component 210 closes the adsorption pores 202. In other words, the adjustment component 210 is disposed within the adsorption cavity 201 inside the carrier body 200, with one end fixedly connected to the inner wall of the carrier body 200 and the other end directly acting on the adsorption pores 202, controlling the state of the adsorption pores 202 through physical contact or detachment.

[0036] The adjusting component 210 allows the adsorption hole 202 to have two working states: the first state is the adsorption hole 202 open state, at which time the adjusting component 210 is completely separated from the hole wall of the adsorption hole 202, and the negative pressure in the adsorption chamber 201 can pass through the adsorption hole 202 to act on the battery cell segment 110 without obstruction, so as to achieve adsorption and fixation; the second state is the adsorption hole 202 closed state, at which time the adjusting component 210 is in close contact with the hole wall of the adsorption hole 202, completely blocking the adsorption hole 202, and the negative pressure cannot act on the outside through the adsorption hole 202, and the adsorption surface 205 loses its adsorption force on the battery cell segment 110.

[0037] The regulating component 210 is disposed within the adsorption chamber 201. This serves two purposes: firstly, it prevents the regulating component 210 from being exposed to the outside of the carrier and damaged by processing debris; secondly, the enclosed environment within the adsorption chamber 201 ensures the operational stability of the regulating component 210 and prevents external dust and moisture from corroding it. Simultaneously, the fixing method (such as bolt connection or welding) between the regulating component 210 and the inner wall of the carrier body 200 must ensure sufficient structural strength to prevent the negative pressure within the adsorption chamber 201 from causing displacement of the regulating component 210 and affecting the control accuracy of the adsorption orifice 202.

[0038] It should be noted that, as Figure 1As shown, the battery piece segment 110 includes a two-segment 111, a three-segment 112 or a four-segment 113. The battery piece carrier of the present application is mainly adapted to the current mainstream multi-specification battery piece segments 110 in photovoltaic processing, including two-segment 111, three-segment 112 and four-segment 113. These three segment types are based on the length of the whole piece of battery piece 100: taking the common 182mmx182mm whole piece of battery piece 100 as an example, the length of the two-segment 111 is 91mm (1 / 2 of the whole piece length), the length of the three-segment 112 is about 60.67mm (1 / 3 of the whole piece length), and the length of the four-segment 113 is 45.5mm (1 / 4 of the whole piece length). These three segment types are selected as the adaptation object because they can cover the power requirements of the current 700W+, 800W+ assembly, and are the most widely used multi-segment scheme in the industry. Adapting to these three types can meet the processing requirements of most photovoltaic production lines.

[0039] Further, as shown in Figure 6 The bearing surface 204 is divided into 12 parallel arranged adsorption areas 208, each adsorption area 208 has a group of adsorption holes 202; the adjusting assembly 210 has multiple and is arranged one by one with the adsorption area 208, so that the adjusting assembly 210 can adjust the adsorption holes 202 on the adsorption area 208 to open or close.

[0040] To realize the accurate adaptation of the above three segment types, as shown in Figure 6 The bearing surface 204 of the carrier body 200 is divided into 12 parallel arranged adsorption areas 208 along the arrangement direction of the adsorption surface 205, the length of each adsorption area 208 is equal, and a group of independent adsorption holes 202 is arranged on each adsorption area 208 (that is, each group of adsorption holes 202 corresponds to an adsorption area 208). The reason for choosing 12 adsorption areas 208 is that 12 is the least common multiple of 2, 3 and 4. Through the combination of 12 adsorption areas 208, the end position of the two-segment 111 (6 adsorption area 208 lengths are required), the three-segment 112 (4 adsorption area 208 lengths are required), and the four-segment 113 (3 adsorption area 208 lengths are required) can be accurately matched, without changing the division of the adsorption area 208, the position of the opened adsorption hole 202 can be flexibly adjusted.

[0041] It can be understood that the adsorption surface 205 is formed by a plurality of adsorption areas 208, and when the battery piece segment 110 is adsorbed on the adsorption surface 205, the battery piece segment 110 covers a plurality of adsorption areas 208.

[0042] Exemplarily, as shown in Figure 6As shown, 12 adsorption areas 208 are sequentially numbered as the first adsorption area 208, the second adsorption area 208, …, and the twelfth adsorption area 208, and the length of each adsorption area 208 is a, so the total length of the 12 adsorption areas 208 is 12a (basically consistent with the length of the whole battery piece 100): the length of the two-pieces 111 is 6a, corresponding to the total length of 6 adsorption areas 208; the length of the three-pieces 112 is 4a, corresponding to the total length of 4 adsorption areas 208; the length of the four-pieces 113 is 3a, corresponding to the total length of 3 adsorption areas 208. So that the two ends of each piece can be accurately corresponded to a specific numbered adsorption area 208, providing a clear control object for the subsequent adjustment of the state of the adsorption hole 202.

[0043] At the same time, as shown in Figure 6 , 7 , 8, the number of adjustment assemblies 210 is completely consistent with the number of adsorption areas 208, that is, one adjustment assembly 210 is arranged corresponding to each adsorption area 208, and each adjustment assembly 210 only controls the opening or closing of the adsorption hole 202 on the corresponding adsorption area 208; the mutual interference between the adjustment assemblies 210 can be avoided, and the state of the adsorption hole 202 of each adsorption area 208 is independently controllable, thereby realizing the accurate selection of the end adsorption area 206 of different pieces.

[0044] Further, as shown in Figure 7 , 8 , the adjustment assembly 210 includes a bracket 211 and an adjustment piece 212, and the bracket 211 is fixedly connected to the inner wall of the carrier body 200; the adjustment piece 212 is arranged corresponding to the adsorption hole 202, and the adjustment piece 212 is fixedly connected to the bracket 211, and the adjustment piece 212 acts on the adsorption hole 202 to make the adsorption hole 202 have a first state and a second state. The bracket 211 is a rigid structure, usually made of aluminum alloy or stainless steel (with sufficient strength and corrosion resistance), and is fixedly connected to the inner wall of the carrier body 200 by bolts or welding, and the mounting position of the bracket 211 needs to be completely aligned with the adsorption hole 202 on the corresponding adsorption area 208, to ensure that the subsequent adjustment piece 212 can accurately act on the adsorption hole 202.

[0045] The adjusting member 212 is an execution component directly controlling the state of the adsorption hole 202, which is fixedly connected to one side of the support 211 facing the adsorption hole 202, and the position and size of the adjusting member 212 are matched with the position and aperture of the adsorption hole 202; for example, if the adsorption holes 202 on the adsorption area 208 are arranged in a linear array, the adjusting member 212 can be provided in a strip or plate structure matched with the linear array of the adsorption holes 202, to ensure that all the adsorption holes 202 of the adsorption area 208 can be simultaneously acted on; under the action of a control signal, the adjusting member 212 can switch the contact state with the adsorption hole 202: when the adjusting member 212 is separated from the adsorption hole 202, the adsorption hole 202 is in the first state, and the adsorption hole 202 is open; when the adjusting member 212 is in close contact with the adsorption hole 202, the adsorption hole 202 is in the second state, and the adsorption hole 202 is closed.

[0046] As shown in Figure 7 、 8 , the support 211 provides a stable support basis for the adjusting member 212, avoiding the adjusting member 212 from being deviated under the influence of negative pressure in the adsorption cavity 201 or self-action, to ensure the accuracy of the state switching of the adsorption hole 202; at the same time, the support 211 can form a certain gap between the adjusting member 212 and the inner wall of the carrier body 200, to provide sufficient space for the action (such as expansion and contraction) of the adjusting member 212, avoiding that the adjusting member 212 cannot complete the state switching due to insufficient space.

[0047] In one embodiment, as shown in Figure 7 、 8 , the adjusting member 212 is a gas bag 2121, which is connected to an external gas supply device to make the gas bag 2121 act on the adsorption hole 202 to make the adsorption hole 202 have the first state and the second state. The gas bag 2121 is connected to the external gas supply device (such as a gas pump or a gas tank) through a gas pipe, and the external gas supply device can fill gas into the gas bag 2121 or extract gas from the gas bag 2121, to realize the control of the state of the adsorption hole 202 by changing the volume of the gas bag 2121. When it is needed to make the adsorption hole 202 in the second state (closed), the external gas supply device fills gas into the gas bag 2121, the volume of the gas bag 2121 expands, and the surface of the gas bag 2121 is in close contact with the hole wall of the adsorption hole 202, to completely block the adsorption hole 202; since the gas bag 2121 is made of an elastic material (such as fluorine rubber, which has the characteristics of resisting negative pressure and high temperature), the expanded gas bag 2121 can be tightly fitted with the hole wall of the adsorption hole 202, to ensure the sealing performance and avoid the leakage of negative pressure.

[0048] When it is needed to make the adsorption hole 202 in the first state (open), the external gas supply device draws gas from the air bag 2121, the air bag 2121 shrinks in volume, completely separates from the hole wall of the adsorption hole 202, and the negative pressure in the adsorption cavity 201 can smoothly act on the battery piece 110 through the adsorption hole 202, so as to realize adsorption and fixation.

[0049] In order to realize independent control of multiple air bags 2121, each air bag 2121 needs to be connected with an external gas supply device through an independent electromagnetic valve: the electromagnetic valve can be opened or closed according to a control signal, thereby realizing the inflation and deflation operation of a single air bag 2121. It can be ensured that multiple air bags 2121 will not affect each other, even if the state of multiple air bags 2121 is switched at the same time, the action accuracy and response speed of each air bag 2121 can be ensured, and the demand of rapid switching of piece types in industrial processing can be met.

[0050] In another embodiment, the adjusting member 212 can be expanded by heating and contracted by cooling to make the adjusting member 212 act on the adsorption hole 202 to make the adsorption hole 202 have the first state and the second state; the adjusting assembly 210 further comprises a heating member and a cooling member (not shown), the heating member is fixedly connected to the support 211, the heating member is used to heat the adjusting member 212, so that the adjusting member 212 expands and abuts on the adsorption hole 202 to make the adsorption hole 202 closed; the cooling member is fixedly connected to the support 211, the cooling member is used to cool the adjusting member 212, so that the adjusting member 212 shrinks and separates from the adsorption hole 202 to make the adsorption hole 202 open. The adjusting member 212 is made of a thermal expansion and contraction material, the volume of the adjusting member 212 is changed by temperature change, and then the state of the adsorption hole 202 is controlled. The commonly used thermal expansion and contraction material is nickel-titanium alloy (shape memory alloy), which has a stable thermal expansion coefficient, can produce uniform volume expansion in the temperature range of 60-80°C, and can quickly restore the original volume after cooling, and is suitable as a precise control adjusting member 212.

[0051] To realize the temperature control of the adjusting member 212, the adjusting assembly 210 further comprises a heating member and a cooling member: the heating member is fixedly connected to the support 211 and closely adheres to the surface of the adjusting member 212, and is usually a thin film heating sheet (such as a polyimide heating sheet, which is thin, uniformly heated and does not occupy much space); when it is needed to make the adsorption hole 202 in the second state (closed), the heating member is powered to generate heat, and the heat is transferred to the adjusting member 212, the adjusting member 212 expands in volume after being heated, until it closely abuts against the hole wall of the adsorption hole 202, and blocks the adsorption hole 202. The cooling member is also fixedly connected to the support 211, and can be a micro cooling air duct or a semiconductor cooling sheet; when it is needed to make the adsorption hole 202 in the first state (open), the heating member is powered off, and the cooling member is started to quickly take away the heat of the adjusting member 212, so that the temperature of the adjusting member 212 drops to normal temperature, the volume of the adjusting member 212 shrinks, and the adjusting member 212 separates from the hole wall of the adsorption hole 202, and the adsorption hole 202 is opened.

[0052] To solve the problem that the debris generated in the photovoltaic processing easily damages the adjusting assembly 210 (especially the air bag 2121), when the air bag 2121 is used as the adjusting member 212, a protection assembly 220 is additionally arranged to realize the blocking and collecting of the debris. As shown in Figure 9 、 10 , 11, the carrier further comprises the protection assembly 220 for battery piece debris protection and collection, the protection assembly 220 is arranged in plurality and one-to-one corresponds to the adjusting assembly 210, the protection assembly 220 comprises a rotating plate 221 and a collecting groove 222, the rotating plate 221 is located between the air bag 2121 and the adsorption hole 202, and is rotationally connected to the inner wall of the carrier body 200 at one end close to the support 211, so that the rotating plate 221 can be driven by the air bag 2121 to separate from the adsorption hole 202 or abut against the adsorption hole 202, to make the adsorption hole 202 form the first state and the second state; wherein, when the adsorption hole 202 is in the first state, the rotating plate 221 is arranged on the air bag 2121 and is inclined; the collecting groove 222 is located on one side of the air bag 2121, and the collecting groove 222 is located on the opposite side of the air bag 2121 from the support 211, the collecting groove 222 comprises a connecting part 2221 and a collecting part 2222, the connecting part 2221 is fixedly connected to the inner wall of the carrier body 200; the collecting part 2222 is fixedly connected to the connecting part 2221, and the collecting part 2222 is farther away from the inner wall of the carrier body 200 than the rotating plate 221, so that when the adsorption hole 202 is in the first state, a collecting channel 223 is formed between the adsorption hole 202, the rotating plate 221 and the collecting part 2222, so that the debris can be gathered in the collecting part 2222 through the collecting channel 223.

[0053] As shown in Figure 9 、 10As shown in FIGS. 11, the rotating plate 221 is arranged between the air bag 2121 and the adsorption holes 202. One end of the rotating plate 221 is rotatably connected to the inner wall of the carrier body 200 through a rotating shaft. The mounting position of the rotating shaft is close to the side of the support 211, so that the rotating plate 221 can freely rotate around the rotating shaft. The rotating plate 221 is made of light and wear-resistant material (such as polytetrafluoroethylene, which has smooth surface and wear resistance, and can reduce the adhesion of debris). The size of the rotating plate 221 matches the size of the adsorption area 208, so as to ensure that the rotating plate 221 can completely cover all the adsorption holes 202 on the adsorption area 208.

[0054] As shown in FIGS. 11, the rotating plate 221 is arranged between the air bag 2121 and the adsorption holes 202. One end of the rotating plate 221 is rotatably connected to the inner wall of the carrier body 200 through a rotating shaft. The mounting position of the rotating shaft is close to the side of the support 211, so that the rotating plate 221 can freely rotate around the rotating shaft. The rotating plate 221 is made of light and wear-resistant material (such as polytetrafluoroethylene, which has smooth surface and wear resistance, and can reduce the adhesion of debris). The size of the rotating plate 221 matches the size of the adsorption area 208, so as to ensure that the rotating plate 221 can completely cover all the adsorption holes 202 on the adsorption area 208. Figure 9 、 10 As shown in FIGS. 11, the rotating plate 221 is arranged between the air bag 2121 and the adsorption holes 202. One end of the rotating plate 221 is rotatably connected to the inner wall of the carrier body 200 through a rotating shaft. The mounting position of the rotating shaft is close to the side of the support 211, so that the rotating plate 221 can freely rotate around the rotating shaft. The rotating plate 221 is made of light and wear-resistant material (such as polytetrafluoroethylene, which has smooth surface and wear resistance, and can reduce the adhesion of debris). The size of the rotating plate 221 matches the size of the adsorption area 208, so as to ensure that the rotating plate 221 can completely cover all the adsorption holes 202 on the adsorption area 208.

[0055] As shown in FIGS. 11, the rotating plate 221 is arranged between the air bag 2121 and the adsorption holes 202. One end of the rotating plate 221 is rotatably connected to the inner wall of the carrier body 200 through a rotating shaft. The mounting position of the rotating shaft is close to the side of the support 211, so that the rotating plate 221 can freely rotate around the rotating shaft. The rotating plate 221 is made of light and wear-resistant material (such as polytetrafluoroethylene, which has smooth surface and wear resistance, and can reduce the adhesion of debris). The size of the rotating plate 221 matches the size of the adsorption area 208, so as to ensure that the rotating plate 221 can completely cover all the adsorption holes 202 on the adsorption area 208. Figure 9 、 10 As shown in FIGS. 11, the rotating plate 221 is arranged between the air bag 2121 and the adsorption holes 202. One end of the rotating plate 221 is rotatably connected to the inner wall of the carrier body 200 through a rotating shaft. The mounting position of the rotating shaft is close to the side of the support 211, so that the rotating plate 221 can freely rotate around the rotating shaft. The rotating plate 221 is made of light and wear-resistant material (such as polytetrafluoroethylene, which has smooth surface and wear resistance, and can reduce the adhesion of debris). The size of the rotating plate 221 matches the size of the adsorption area 208, so as to ensure that the rotating plate 221 can completely cover all the adsorption holes 202 on the adsorption area 208.

[0056] As shown in FIGS. 11, the rotating plate 221 is arranged between the air bag 2121 and the adsorption holes 202. One end of the rotating plate 221 is rotatably connected to the inner wall of the carrier body 200 through a rotating shaft. The mounting position of the rotating shaft is close to the side of the support 211, so that the rotating plate 221 can freely rotate around the rotating shaft. The rotating plate 221 is made of light and wear-resistant material (such as polytetrafluoroethylene, which has smooth surface and wear resistance, and can reduce the adhesion of debris). The size of the rotating plate 221 matches the size of the adsorption area 208, so as to ensure that the rotating plate 221 can completely cover all the adsorption holes 202 on the adsorption area 208. Figure 11As shown, the collection groove 222 is disposed on one side of the airbag 2121, and is located on both sides of the airbag 2121, respectively, along with the bracket 211. The collection groove 222 includes a connecting part 2221 and a collection part 2222. The connecting part 2221 is a rigid structure and is fixedly connected to the inner wall of the carrier body 200 by bolts to stabilize and fix the collection groove 222. The collection part 2222 is a groove-shaped structure and is fixedly connected to the end of the connecting part 2221. The collection part 2222 is further away from the inner wall of the carrier body 200 than the rotating plate 221, so that when the rotating plate 221 is tilted, the end away from the rotating axis can extend to the top of the collection part 2222, forming a complete collection channel 223 from the adsorption hole 202 to the rotating plate 221 to the collection part 2222. When the adsorption hole 202 is in the first state (open), the negative pressure in the adsorption chamber 201 will form an airflow at the adsorption hole 202. The airflow carries the processing debris through the adsorption hole 202 and impacts the inclined surface of the rotating plate 221. Then, it slides along the inclined surface into the collection part 2222 to collect the debris.

[0057] The protective component 220 solves the problem of debris damaging the airbag 2121, extending the service life of the airbag 2121 from the original 3 months to more than 1 year. At the same time, it avoids the problem of blockage of the adsorption hole 202 due to debris accumulation, ensuring the stability of the adsorption force.

[0058] This application also provides a method for processing segmented battery strings, such as... Figures 12-17 As shown, this method is applicable to three different specifications of battery cell segments 110: two-segment 111, three-segment 112, and four-segment 113. The adsorption regions 208 are defined as the first adsorption region 208, the second adsorption region 208, ..., the twelfth adsorption region 208. The method includes: like Figure 12 , 13 As shown, when the battery cell segment 110 is divided into two segments 111, a negative pressure is formed in the adsorption cavity 201. S11: The adjustment component 210 corresponding to the adsorption zone 208 puts the adsorption holes 202 on the first adsorption zone 208, the sixth adsorption zone 208, the seventh adsorption zone 208 and the 12th adsorption zone 208 in a first state, and puts the adsorption holes 202 on the remaining adsorption zones 208 in a second state. S12: Arrange several two-part pieces 111 to be processed sequentially on the adsorption surface 205 in the form of adsorption at both ends; S13: Process the two-part 111 sequentially; S14: Switch all the adsorption holes 202 on the adsorption surface 205 corresponding to the processed bipart 111 to the second state, and remove the processed bipart 111.

[0059] Specifically, a negative pressure device (such as a vacuum pump) outside the carrier body 200 is started to form a stable negative pressure in the adsorption cavity 201 inside the carrier body 200, so as to ensure that the adsorption force is sufficient to fix the two-piece 111 and will not cause the two-piece 111 to be broken due to excessive pressure; As shown in Figure 12 、 13 According to the size (length of 6a, corresponding to the total length of 6 adsorption zones 208) of the two-piece 111, the adjusting assembly 210 corresponding to the first adsorption zone 208, the sixth adsorption zone 208, the seventh adsorption zone 208 and the twelfth adsorption zone 208 is actuated to switch the adsorption holes 202 in these four adsorption zones 208 to the first state (open); at the same time, the adjusting assembly 210 of the remaining adsorption zones 208 (second to fifth adsorption zones 208 and eighth to eleventh adsorption zones 208) is actuated to switch the adsorption holes 202 in these adsorption zones 208 to the second state (closed). The reason for selecting these four adsorption zones 208 is that the length of the two-piece 111 is 6a, the first two-piece 111 needs to cover the first to sixth adsorption zones 208, and the end adsorption zones 206 at both ends correspond to the first adsorption zone 208 and the sixth adsorption zone 208; the second two-piece 111 needs to cover the seventh to twelfth adsorption zones 208, and the end adsorption zones 206 at both ends correspond to the seventh adsorption zone 208 and the twelfth adsorption zone 208, only opening the adsorption holes 202 of these four adsorption zones 208 can ensure that both two-pieces 111 are fixed in the state of being adsorbed at both ends; A plurality of two-pieces 111 to be processed are placed in turn on the adsorption surface 205 of the bearing surface 204, and the two ends of each two-piece 111 are aligned with the opened adsorption zones 208 (the left two-piece 111 is aligned with the first adsorption zone 208 and the sixth adsorption zone 208, and the right two-piece 111 is aligned with the seventh adsorption zone 208 and the twelfth adsorption zone 208), and the negative pressure in the adsorption cavity 201 acts on the two ends of the two-piece 111 through the opened adsorption holes 202 to realize precise fixation of the two-piece 111, at this time the two-piece 111 is tightly attached to the bearing surface 204 (flat surface or circular arc surface) without displacement and warping; According to a predetermined processing process (such as cutting or welding), the fixed two-pieces 111 on the bearing surface 204 are processed in turn; After processing, the adsorption holes 202 in all adsorption zones 208 are switched to the second state (closed), the adsorption surface 205 loses the adsorption force on the processed two-pieces 111, and the processed two-pieces 111 can be easily taken out by the operator or the mechanical arm.

[0060] Or, as shown in Figure 14 、 15 When the battery piece is a three-piece 112, a negative pressure is formed in the adsorption cavity 201; S21: the adjusting assembly 210 corresponding to the adsorption area 208 makes the adsorption holes 202 on the first adsorption area 208, the fourth adsorption area 208, the fifth adsorption area 208, the eighth adsorption area 208, the ninth adsorption area 208 and the twelfth adsorption area 208 in the first state, and the adsorption holes 202 on the rest of the adsorption areas 208 in the second state; S22: a plurality of to-be-processed tri-segments 112 are arranged on the adsorption surface 205 in the form of being adsorbed at two ends in sequence; S23: the tri-segments 112 are processed in sequence; S24: the adsorption holes 202 on the corresponding adsorption surface 205 of the processed tri-segments 112 are all switched to the second state, and the processed tri-segments 112 are taken off.

[0061] Specifically, the negative pressure device (such as a vacuum pump) outside the carrier body 200 is started to form a stable negative pressure in the adsorption cavity 201 inside the carrier body 200, so as to ensure that the adsorption force is enough to fix the tri-segment 112 and will not cause the tri-segment 112 to be broken due to excessive pressure; As shown in Figure 14 , 15 According to the size (the length is 4a, corresponding to the total length of the four adsorption areas 208) of the tri-segment 112, the adsorption holes 202 corresponding to the first adsorption area 208, the fourth adsorption area 208, the fifth adsorption area 208, the eighth adsorption area 208, the ninth adsorption area 208 and the twelfth adsorption area 208 are switched to the first state (open); the adsorption holes 202 of the rest of the adsorption areas 208 (the second to third adsorption areas 208, the sixth to seventh adsorption areas 208, the tenth to eleventh adsorption areas 208) are switched to the second state (closed). The tri-segment 112 needs to cover four adsorption areas 208, the first tri-segment 112 covers the first to fourth adsorption areas 208, and the end adsorption area 206 is the first and fourth adsorption areas 208; the second tri-segment 112 covers the fifth to eighth adsorption areas 208, and the end adsorption area 206 is the fifth and eighth adsorption areas 208; the third tri-segment 112 covers the ninth to twelfth adsorption areas 208, and the end adsorption area 206 is the ninth and twelfth adsorption areas 208. Opening the adsorption holes 202 of the six adsorption areas 208 can ensure that the two ends of the tri-segment 112 are adsorbed; The to-be-processed tri-segment 112 is placed on the adsorption surface 205 in sequence, and the two ends of each tri-segment 112 are aligned with the corresponding open adsorption area 208. The negative pressure fixes the tri-segment 112 through the adsorption holes 202; According to the preset processing process (such as cutting and welding), the tri-segment 112 fixed on the bearing surface 204 is processed in sequence; After the processing, all the adsorption holes 202 on the adsorption areas 208 are switched to the second state (closed), and the adsorption surface 205 loses the adsorption force on the processed three-segment 112, so that the processed three-segment 112 can be easily taken out by the operator or the mechanical arm.

[0062] Or, as shown in Figure 16 、 17 When the battery piece segment 110 is a four-segment 113, a negative pressure is formed in the adsorption cavity 201. S31: The adjusting assembly 210 corresponding to the adsorption area 208 makes the adsorption holes 202 on the first adsorption area 208, the third adsorption area 208, the fourth adsorption area 208, the sixth adsorption area 208, the seventh adsorption area 208, the ninth adsorption area 208, the tenth adsorption area 208 and the twelfth adsorption area 208 in the first state, and the adsorption holes 202 on the remaining adsorption areas 208 in the second state. S32: A plurality of four-segments 112 to be processed are arranged on the adsorption surface 205 in the form of being adsorbed at both ends. S33: The four-segments 113 are processed in sequence. S34: The adsorption holes 202 on the corresponding adsorption surface 205 of the processed four-segment 113 are all switched to the second state, and the processed four-segment 113 is taken out.

[0063] Specifically, the negative pressure device (such as a vacuum pump) outside the carrier body 200 is started to form a stable negative pressure in the adsorption cavity 201 inside the carrier body 200, so as to ensure that the adsorption force is sufficient to fix the four-segment 113, and the four-segment 113 will not be broken due to excessive pressure. As shown in Figure 16 、 17As shown, according to the size (length of 3a, corresponding to the total length of 3 adsorption zones 208) of the quarter piece 113, the adsorption holes 202 corresponding to the 1st, 3rd, 4th, 6th, 7th, 9th, 10th and 12th adsorption zones 208 are switched to the first state (open); the adsorption holes 202 of the remaining adsorption zones 208 (2nd, 5th, 8th and 11th adsorption zones 208) are switched to the second state (closed). The quarter piece 113 needs to cover 3 adsorption zones 208, the first quarter piece 113 covers the 1st-3rd adsorption zones 208, and the end adsorption zones 206 are the 1st and 3rd adsorption zones 208; the second quarter piece 113 covers the 4th-6th adsorption zones 208, and the end adsorption zones 206 are the 4th and 6th adsorption zones 208; the third quarter piece 113 covers the 7th-9th adsorption zones 208, and the end adsorption zones 206 are the 7th and 9th adsorption zones 208; the fourth quarter piece 113 covers the 10th-12th adsorption zones 208, and the end adsorption zones 206 are the 10th and 12th adsorption zones 208. Opening the adsorption holes 202 of the eight adsorption zones 208 can ensure that the two ends of the four quarter pieces 113 are adsorbed; Place the quarter piece 113 to be processed on the adsorption surface 205 in sequence, align the two ends of each quarter piece 113 with the corresponding open adsorption zone 208, and fix the quarter piece 113 through the adsorption holes 202 by negative pressure; According to the preset processing process (such as cutting and welding), sequentially process the fixed quarter piece 113 on the bearing surface 204; After processing, switch all the adsorption holes 202 on the adsorption zones 208 to the second state (closed), and the adsorption surface 205 loses the adsorption force on the processed quarter piece 113, so that the operator or the mechanical arm can easily take down the processed quarter piece 113.

[0064] It can be understood that the above is an example of arranging battery piece fragments 110 on one bearing surface 204. If the carrier is provided with multiple bearing surfaces 204, the above method process can be performed on each bearing surface 204.

[0065] The application also provides a fragmented battery string, which is prepared by the above-mentioned fragmented battery string processing method. During the processing, the battery piece fragments 110 are always fixed in the optimal mechanical state of two-end adsorption, and the opening and closing states of the adsorption holes 202 are accurately controllable, so that the size precision of the processed fragmented battery piece is high, and there is no warping and hidden cracking; in the subsequent string welding process, the gaps between the fragmented battery pieces are uniform, which can effectively reduce the current loss and improve the module power.

[0066] While the preferred embodiments of the application have been described, additional variations and modifications can be made to these embodiments by those skilled in the art once they have the benefit of the present disclosure without departing from the spirit and scope of the application. Accordingly, it is intended that such additions and modifications be included within the scope of the application. It is the following claims, including any amendments thereto, which define the scope of the application.

[0067] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A battery cell carrier, characterized in that, include: The carrier body (200) has an adsorption cavity (201) inside and a bearing surface (204) on the carrier body (200). The bearing surface (204) is a plane or an arc surface. The bearing surface (204) includes a plurality of adsorption surfaces (205) arranged in parallel. The size of the adsorption surface (205) corresponds to a piece of battery cell (110) so that the adsorption surface (205) can adsorb a piece of battery cell (110). Each adsorption surface (205) is provided with a plurality of adsorption holes (202). The adsorption holes (202) are connected to the adsorption cavity (201). The adsorption surface (205) is defined to have an end adsorption region (206) and an intermediate adsorption region (207). There are two end adsorption regions (206), and the intermediate adsorption region (207) is located between the two end adsorption regions (206). The adsorption hole (202) has an adjustment capability to open or close the adsorption hole (202), so that the adsorption surface (205) adsorbs a piece of battery cell (110) in such a way that the adsorption hole (202) on the end adsorption region (206) is open and the adsorption hole (202) on the intermediate adsorption region (207) is closed.

2. The battery cell carrier according to claim 1, characterized in that, Also includes: An adjustment component (210) is located inside the adsorption chamber (201). The adjustment component (210) is connected to the inner wall of the carrier body (200) and acts on the adsorption hole (202) to make the adsorption hole (202) have a first state and a second state: in the first state, the adjustment component (210) opens the adsorption hole (202); in the second state, the adjustment component (210) closes the adsorption hole (202).

3. A battery cell carrier according to claim 2, characterized in that, The battery cell segments (110) include two segments (111), three segments (112), or four segments (113).

4. A battery cell carrier according to claim 3, characterized in that, The bearing surface (204) is divided into 12 adsorption zones (208) arranged in parallel, and each adsorption zone (208) has a set of adsorption holes (202); the adjustment component (210) has multiple components and is arranged one-to-one with the adsorption zones (208) so that the adjustment component (210) can adjust the adsorption holes (202) on the adsorption zone (208) to open or close.

5. A battery cell carrier according to claim 4, characterized in that, The adjustment component (210) includes: A bracket (211) is fixedly connected to the inner wall of the carrier body (200); An adjusting member (212) is provided corresponding to the adsorption hole (202). The adjusting member (212) is fixedly connected to the bracket (211). The adjusting member (212) acts on the adsorption hole (202) to make the adsorption hole (202) have the first state and the second state.

6. A battery cell carrier according to claim 5, characterized in that, The adjusting component (212) is an airbag (2121), which is connected to an external air supply device so that the airbag (2121) acts on the adsorption hole (202) so that the adsorption hole (202) has the first state and the second state.

7. A battery cell carrier according to claim 5, characterized in that, The adjusting member (212) can expand when heated and contract when cooled so that the adjusting member (212) acts on the adsorption hole (202) so that the adsorption hole (202) has the first state and the second state; the adjusting assembly (210) further includes: A heating element is fixedly connected to the bracket (211). The heating element is used to heat the adjusting element (212), so that the adjusting element (212) expands and abuts against the adsorption hole (202) to close the adsorption hole (202). A cooling component is fixedly connected to the bracket (211). The cooling component is used to cool the adjusting component (212) so that the adjusting component (212) contracts and disengages from the adsorption hole (202) so that the adsorption hole (202) opens.

8. A battery cell carrier according to claim 6, characterized in that, It also includes a protective component (220) for protecting and collecting battery cell debris. Multiple protective components (220) are provided, each corresponding to one of the adjustment components (210). Each protective component (220) includes: A rotating plate (221) is located between the airbag (2121) and the adsorption hole (202). One end of the rotating plate (221) near the support (211) is rotatably connected to the inner wall of the carrier body (200), so that the rotating plate (221) can be driven by the airbag (2121) to detach from the adsorption hole (202) or to abut against the adsorption hole (202), so that the adsorption hole (202) forms the first state and the second state; wherein, when the adsorption hole (202) is in the first state, the rotating plate (221) is mounted on the airbag (2121) and is inclined. A collection slot (222) is located on one side of the airbag (2121), and the collection slot (222) and the support (211) are located on opposite sides of the airbag (2121). The collection slot (222) includes: A connecting part (2221) is fixedly connected to the inner wall of the carrier body (200); The collection part (2222) is fixedly connected to the connecting part (2221). The collection part (2222) is further away from the inner wall of the carrier body (200) than the rotating plate (221). When the adsorption hole (202) is in the first state, a collection channel (223) is formed between the adsorption hole (202), the rotating plate (221) and the collection part (2222), so that the debris can be collected in the collection part (2222) through the collection channel (223).

9. A method for processing segmented battery strings, characterized in that, The method is applicable to the battery cell carrier as described in any one of claims 4-8, wherein the adsorption region (208) is defined as the first adsorption region (208), the second adsorption region (208), ..., the twelfth adsorption region (208), and the method includes: When the battery cell segment (110) is divided into two segments (111), a negative pressure is formed in the adsorption chamber (201); the adjustment component (210) corresponding to the adsorption region (208) makes the adsorption holes (202) on the first adsorption region (208), the sixth adsorption region (208), the seventh adsorption region (208) and the twelfth adsorption region (208) in a first state, and the adsorption holes (202) on the remaining adsorption regions (208) in a second state; Several of the two-part pieces (111) to be processed are sequentially arranged on the adsorption surface (205) in the form of adsorption at both ends; The two segments (111) are processed sequentially; Switch all the adsorption holes (202) on the adsorption surface (205) corresponding to the processed bipartite (111) to the second state, and remove the processed bipartite (111). or, When the battery cell is divided into three segments (112), a negative pressure is formed in the adsorption chamber (201); the adjustment component (210) corresponding to the adsorption zone (208) makes the adsorption holes (202) on the first adsorption zone (208), the fourth adsorption zone (208), the fifth adsorption zone (208), the eighth adsorption zone (208), the ninth adsorption zone (208) and the twelfth adsorption zone (208) in a first state, and the adsorption holes (202) on the remaining adsorption zones (208) in a second state; Several of the three-part slices (112) to be processed are sequentially arranged on the adsorption surface (205) in the form of adsorption at both ends; The three-part slice (112) is processed sequentially; Switch all the adsorption holes (202) on the adsorption surface (205) corresponding to the processed three-part sheet (112) to the second state, and remove the processed three-part sheet (112). or, When the battery cell is divided into four segments (113), a negative pressure is formed in the adsorption chamber (201); the adjustment component (210) corresponding to the adsorption zone (208) makes the adsorption holes (202) on the first adsorption zone (208), the third adsorption zone (208), the fourth adsorption zone (208), the sixth adsorption zone (208), the seventh adsorption zone (208), the ninth adsorption zone (208), the tenth adsorption zone (208) and the twelfth adsorption zone (208) in a first state, and the adsorption holes (202) on the remaining adsorption zones (208) in a second state; Several quarter pieces (113) to be processed are sequentially arranged on the adsorption surface (205) in the form of adsorption at both ends; The four segments (113) are processed sequentially; Switch all the adsorption holes (202) on the adsorption surface (205) corresponding to the processed quarter piece (113) to the second state, and remove the processed quarter piece (113).

10. A segmented battery string, characterized in that, It is prepared by the segmented battery string processing method as described in claim 9.

Images