Adsorption type cross-over placing mechanism with battery piece in series with metal wire and working method

Abstract

The application provides an adsorption type cross-over stacking mechanism with series-connected metal wires and a working method, and belongs to the technical field of photovoltaic cell production equipment. The mechanism comprises a plurality of linearly arranged cross-over stacking mechanism bodies, the cross-over stacking mechanism body comprises a cell and wire suction module, the cell and wire suction module comprises a cell suction part and a wire suction part; the cell and wire suction module is connected with a lifting module located above the cell and wire suction module; the two cell and wire suction modules in every two adjacent cross-over stacking mechanism bodies are in an adaptive plug-in relationship. The application can realize synchronous adsorption and carrying of the cell and the series-connected metal wire, and can quickly adhere the series-connected metal wire to the cell during the carrying process, thereby solving the problems of the prior art, such as complex structure of the photovoltaic cell production device, difficult to guarantee production efficiency, high production cost and long production cycle.

Description

Technical Field

[0001] This invention belongs to the technical field of photovoltaic cell production equipment, specifically an adsorption-type cross-stacking mechanism and working method for solar cells with series-connected metal wires. Background Technology

[0002] Photovoltaic cells are the core component of photovoltaic power generation. In the production of photovoltaic cells, it is necessary to alternately fix series-connected metal wires onto the cell surface. In existing technologies, the series-connected metal wires and the cell are typically aligned first using a specific mechanical device, and then the solder on the series-connected metal wires is melted at high temperature to achieve the technical effect of fixing the series-connected metal wires to the cell surface. For example, Chinese Patent CN114713923A discloses a pressure-cooling device for welding series-connected metal wires for photovoltaic cells, including a conveyor line equipped with a spot welding device, a gripping mechanism, and a pressure-cooling device. The welding needle in the spot welding device can melt the series-connected metal wires. By circulating a pressure cooler on the product conveyor, pressure can be applied to the series-connected metal wires during the spot welding process, achieving a tight fit between the series-connected metal wires and the cell.

[0003] However, the traditional method described above has the following problems in practical applications: In addition to the essential welding and conveying devices, a pressurizing device or carrier is usually required to press down on the tandem wires and move with them to achieve positioning and pressurization. This makes the overall structure of the production equipment relatively complex, occupies a large space, and requires coordination between multiple mechanisms, making it difficult to guarantee good production efficiency.

[0004] In addition, existing technologies mostly use welding for fixing, which is difficult to operate; moreover, the metal wires used in series are prone to bulging and poor contact at the weld points, which can lead to unsatisfactory fixing results; after spot welding, the cooling rate of the weld points of the metal wires used in series is slow, which will prolong the unit production cycle of the product. Summary of the Invention

[0005] The purpose of this invention is to provide an adsorption-type cross-stacking mechanism and working method for solar cells with series-connected metal wires, which can realize the synchronous adsorption and transportation of solar cells and series-connected metal wires, and can quickly adhere the series-connected metal wires to the solar cells during the transportation process. This solves the problems in the prior art, where the overall structure of photovoltaic cell production equipment is relatively complex, which leads to difficulty in ensuring production efficiency, high production costs, and long production cycles.

[0006] This invention is achieved using the following technical solution:

[0007] An adsorption-type cross-stacking mechanism for battery cells with series-connected metal wires includes several linearly arranged cross-stacking mechanism bodies. Each cross-stacking mechanism body includes a cell-attracting and wire-attracting module, which includes a cell-attracting part and a wire-attracting part. The cell-attracting and wire-attracting module is connected to a lifting module located above it. The two cell-attracting and wire-attracting modules in every two adjacent cross-stacking mechanism bodies are in an adaptive plug-in relationship.

[0008] In this invention, the suction plate and wire suction module is used to pick up the battery cell and the series connection wire respectively, and the lifting module is used to adjust the height position of the suction plate and wire suction module. Specifically, the structures of several linearly arranged cross-stacking mechanism bodies are the same. Each of them picks up the battery cell on one side through the suction plate part of the suction plate and wire suction module, and picks up the series connection wire on the other side through the wire suction part of the suction plate and wire suction module. Therefore, in two adjacent cross-stacking mechanism bodies, the battery cell picked up by one cross-stacking mechanism body will be adjacent to the series connection wire picked up by the other cross-stacking mechanism body. Since the two suction plate and wire suction modules in each pair of adjacent cross-stacking mechanism bodies are in an adaptive plug-in relationship, after the plug-in action is performed, the series connection wire picked up by one cross-stacking mechanism body will adhere to the surface of the battery cell with adhesive picked up by the other cross-stacking mechanism body. In the above process, the vertical distance between the suction module and the corresponding battery cell and series connection wire can be adjusted by the lifting module. This allows the suction module and the wire-suction module to descend to a suitable height to pick up the battery cell and series connection wire respectively, and to raise the picked-up battery cell and series connection wire to a safe height (at which the battery cell and series connection wire will not be damaged by collision when the two cross-stacking mechanism bodies are inserted) before insertion. It should be noted that in the above process, an external power mechanism is required to drive the cross-stacking mechanism body to move, thereby realizing the positioning and insertion between several cross-stacking mechanism bodies. Those skilled in the art can select the external power mechanism according to the actual situation in the application, and the present invention does not limit this. The operation of coating adhesive on the battery cell or squeezing adhesive onto the battery cell is the prior art in the field and is not an improvement of the prior art by the present invention, so it will not be described in detail here.

[0009] Furthermore, the suction plate portion includes a suction cup mounting adjustment plate, and the suction wire portion includes a suction groove opening plate, with the suction cup mounting adjustment plate and the suction groove opening plate stacked alternately.

[0010] Furthermore, the suction plate portion includes a suction cup mounting adjustment plate, and the suction wire portion includes a suction groove opening plate, with the suction cup mounting adjustment plate and the suction groove opening plate stacked alternately.

[0011] Furthermore, the suction cup mounting adjustment plate has several suction cup mounting bosses extending from the side that does not contact the suction groove opening plate, and several suction cups are fixedly mounted on the lower surface of each suction cup mounting boss.

[0012] Furthermore, a number of wire-suction claws are provided on the side of the suction groove opening plate that does not contact the suction cup mounting adjustment plate, and a number of V-shaped suction grooves are fixed on the lower surface of each wire-suction claw; the suction cup and the V-shaped suction grooves are respectively connected to the vacuum generator.

[0013] Furthermore, multiple insertion channels are provided between the plurality of suction claws, and the number, size, and location of the insertion channels are adapted to the number, size, and location of the suction cup mounting bosses; in each pair of adjacent cross-stacked mechanism bodies, the suction cup mounting boss of one suction plate and the insertion channel of the other suction plate and wire-absorbing module are in an adapted insertion relationship.

[0014] Furthermore, the lifting module includes a motor, which is connected to a stacking adjustment plate via a transmission assembly. The stacking adjustment plate is fixedly connected to the suction plate and wire suction module.

[0015] Furthermore, the transmission assembly includes a lead screw, the lead screw shaft of which is connected to the output shaft of the motor, the slider of which is slidably connected to the linear rail, the linear rail being fixedly mounted on the linear rail mounting plate, and the slider being connected to the stacking adjustment plate through a connector.

[0016] A method for operating an adsorption-type cross-stacking mechanism with series-connected metal wire battery cells, applied to the cross-stacking mechanism described above, includes the following steps:

[0017] Step 1: After positioning several cross-stacking mechanism bodies, use the lifting module in each cross-stacking mechanism body to lower each suction module and pick up the corresponding battery cell and series metal wire.

[0018] Step 2: Then, the corresponding suction modules for the cells and wires are raised by the lifting modules in each cross-stacking mechanism body to ensure that the cells and the series wires reach a safe height.

[0019] Step 3: Connect the two suction modules in each pair of adjacent cross-stacking mechanism bodies, so that the series wires sucked up in one cross-stacking mechanism body are adhered to the surface of the battery cells sucked up in the other cross-stacking mechanism body.

[0020] Furthermore, in step one, the vacuum generator is activated to create a vacuum, the suction cups of the suction plate part can pick up the battery cells, and the V-shaped suction grooves of the suction wire part can pick up the series-connected metal wires.

[0021] Furthermore, in step three, when the series wires are adhered to the surface of the battery cell, they intersect perpendicularly with all the sub-grid lines on the surface of the battery cell.

[0022] The beneficial effects achieved by this invention are:

[0023] (1) By setting up a suction module for battery cells and wires, the simultaneous adsorption and transport of battery cells and wires for series connection can be achieved.

[0024] (2) By setting up a lifting module, the suction module can be adjusted to a suitable height position so as to pick up the battery cell and the series wire respectively, or to lift the picked-up battery cell and the series wire to a safe height;

[0025] (3) By setting the matching and plugging relationship between the two suction wire modules in each of the two adjacent cross-stacking mechanism bodies, and by executing steps one to three, the series metal wire sucked up in one cross-stacking mechanism body can be adhered to the surface of the battery cell with adhesive sucked up in another cross-stacking mechanism body.

[0026] Compared with existing technologies with relatively complex overall device structures, the present invention has a simple structure and high integration, which can effectively improve production efficiency and thus shorten the unit production cycle of photovoltaic cell products. In addition, the series-connected metal wires can be quickly adhered to the cells during transportation, eliminating the need for welding, making the operation simpler and providing better fixation. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the cross-stacking mechanism body described in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the suction module for picking up battery cells and series-connected metal wires according to an embodiment of the present invention;

[0029] Figure 3 This is a three-dimensional structural diagram of the suction sheet and fiber suction module (inverted) according to an embodiment of the present invention;

[0030] Figure 4 This is a top view of the suction sheet and fiber suction module (inverted) according to an embodiment of the present invention;

[0031] Figure 5 yes Figure 3 Enlarged view of the structure at point M;

[0032] Figure 6 This is a three-dimensional structural diagram of the lifting module described in an embodiment of the present invention;

[0033] Figure 7This is a three-dimensional structural schematic diagram of the adsorption-type cross-stacking mechanism described in an embodiment of the present invention;

[0034] Figure 8 This is a top view of the adsorption-type cross-stacking mechanism described in an embodiment of the present invention;

[0035] In the diagram: 1. Battery cell; 2. Series metal wire; 31. Suction cup mounting adjustment plate; 32. Suction groove opening plate; 33. Suction cup; 34. Suction cup mounting boss; 35. Wire suction claw; 36. Insertion channel; 37. V-shaped suction groove; 41. Motor; 42. Linear rail mounting plate; 43. Stacking adjustment plate. Detailed Implementation

[0036] To clearly illustrate the solution in this invention, further explanation is provided below with reference to the accompanying drawings:

[0037] Example 1

[0038] Please refer to Figures 1 to 8 This embodiment provides an adsorption-type cross-stacking mechanism for battery cells with series-connected metal wires; it includes two cross-stacking mechanism bodies, respectively denoted as... Figure 7 The cross-stacking mechanism bodies A and B shown are arranged in a straight line, one in front of the other. Each cross-stacking mechanism body includes a suction plate / wire suction module, which comprises a suction plate portion and a wire suction portion. The suction plate / wire suction module is connected to a lifting module located above it. The two suction plate / wire suction modules in cross-stacking mechanism bodies A and B are connected by an adapter plug-in relationship.

[0039] in:

[0040] like Figures 2 to 5 As shown, the suction plate part includes a suction cup mounting adjustment plate 31, and the suction wire part includes a suction groove opening plate 32. The suction cup mounting adjustment plate 31 and the suction groove opening plate 32 are stacked alternately, with the suction cup mounting adjustment plate 31 located above the suction groove opening plate 32. Specifically:

[0041] Four suction cup mounting bosses 34 extend evenly from the side of the suction cup mounting adjustment plate 31 that does not contact the suction groove opening plate 32. Two suction cups 33 arranged in a front-to-back pattern are fixedly mounted on the lower surface of each suction cup mounting boss 34.

[0042] Five suction claws 35 of different sizes are provided on the side of the suction groove opening plate 32 that does not contact the suction cup mounting adjustment plate 31. Several sets of two V-shaped suction grooves 37 arranged one in front of the other are fixedly provided on the lower surface of each suction claw 35. The suction cup 33 and the V-shaped suction grooves 37 are respectively connected to a high-flow vacuum generator (not shown in the figure. In this embodiment, the vacuum generator is set inside the hollow suction cup mounting adjustment plate 31 and the suction groove opening plate 32; it can also be set in other positions to achieve communication with the suction cup 33 and the V-shaped suction grooves 37).

[0043] An insertion channel 36 is provided between every two suction claws 35, that is, the suction plate and suction module described in this embodiment has a total of four insertion channels 36; the size and opening position of the four insertion channels 36 are adapted to the size and opening position of the four suction cup mounting bosses 34.

[0044] Based on this, the four suction cup mounting bosses 34 in the cross-stacking mechanism body B correspond one-to-one with the four insertion holes 36 in the cross-stacking mechanism body A. That is, under the action of the external power mechanism (in this embodiment, a linear motor 41 is specifically selected), the four suction cup mounting bosses 34 in the cross-stacking mechanism body B can be inserted into the four insertion holes 36 in the cross-stacking mechanism body A respectively.

[0045] like Figure 6 As shown, the lifting module includes a motor 41, which is connected to a stacking adjustment plate 43 via a transmission assembly. The stacking adjustment plate 43 is fixedly connected to the suction plate and wire suction module. The transmission assembly includes a lead screw, the lead screw shaft of which is connected to the output shaft of the motor 41. The slider of the lead screw is slidably connected to a linear rail, which is fixedly mounted on a linear rail mounting plate 42. The slider is connected to the stacking adjustment plate 43 via a connector.

[0046] Based on this, the motor 41 can drive the stacking adjustment plate 43 to rise and fall via the lead screw. The suction part and the suction part will rise and fall along with the rise and fall of the stacking adjustment plate 43. Based on this, the lifting module can lower the suction part to a suitable height position to pick up the battery cell 1, and at the same time, it can lower the suction part to a suitable height position to pick up the series metal wire 2. Then, the relative height position of the suction module is adjusted by the lifting module to raise the picked-up battery cell 1 and series metal wire 2 to a safe height, thereby facilitating the insertion action between the cross stacking mechanism body A and the cross stacking mechanism body B.

[0047] Therefore, in the above structure, by setting up the suction module, the battery cell 1 and the series wire 2 can be simultaneously adsorbed and transported; by setting up the lifting module, the suction module can be adjusted to a suitable height position so as to pick up the battery cell 1 and the series wire 2 respectively, or to lift the picked-up battery cell 1 and the series wire 2 to a safe height; by setting up the matching plug-in relationship between the two suction modules in every two adjacent cross-stacking mechanism bodies, the series wire 2 picked up in one cross-stacking mechanism body can be adhered to the surface of the battery cell 1 with adhesive picked up in the other cross-stacking mechanism body.

[0048] This embodiment also provides a method for operating an adsorption-type cross-stacking mechanism with series-connected metal wire battery cells, applied to the cross-stacking mechanism described above, including the following steps:

[0049] Step 1: Using an external power mechanism, move the cross-stacking mechanism body A and cross-stacking mechanism body B above the two battery cells 1 (the battery cells 1 are coated with adhesive, and those skilled in the art can select the specific type and parameters of the adhesive according to the actual situation) and the two sets of series-connected metal wires 2 respectively.

[0050] Then, by activating the lifting modules in the cross-stacking mechanism body A and cross-stacking mechanism body B, the two suction modules for sheet and wire are lowered; as the lowering is completed, the suction modules for sheet and wire in the cross-stacking mechanism body A and cross-stacking mechanism body B respectively complete the adsorption, that is, the suction cup 33 in the sheet suction part is attached to the battery sheet 11, and the wire suction claw 35 in the wire suction part is attached to the series metal wire 2.

[0051] Next, the vacuum generator is started to create a vacuum, so that the suction cup 33 picks up the battery cell 1 and the V-shaped suction groove 37 in the suction claw 35 picks up the series metal wire 2. The suction cup mounting adjustment plate 31 can adjust the straightness and flatness of the picked-up battery cell 1 and series metal wire 2.

[0052] Step 2: Reverse the lifting modules in the cross-stacking mechanism body A and cross-stacking mechanism body B respectively, so that the two suction modules gradually rise to ensure that the two battery cells 1 and the two sets of series-connected metal wires 2 reach the safe height respectively.

[0053] Step 3: Under the action of the external power mechanism, the insertion action is performed, that is, the four suction cup mounting bosses in the cross-stacking mechanism body B are respectively inserted into the four insertion holes 36 in the cross-stacking mechanism body A, so that the series metal wire 2 picked up by the cross-stacking mechanism body A adheres to the surface of the battery cell 1 with adhesive picked up by the cross-stacking mechanism body B; wherein, when the series metal wire 2 adheres to the surface of the battery cell 1, it intersects perpendicularly with all the sub-grid lines on the surface of the battery cell 1.

[0054] After completing steps one through three, a series-connected metal wire battery cell is formed. Finally, the series-connected metal wire battery cell is placed on the flow line and waits to flow into the next curing position.

[0055] Based on this, by setting up multiple cross-stacking mechanism bodies and repeatedly executing the above process, photovoltaic cell strings can be manufactured, and high stringing efficiency can be guaranteed.

[0056] In summary, compared with existing technologies where the overall structure is relatively complex, the present invention has a simple structure and high integration, which can effectively improve production efficiency and thus shorten the unit production cycle of photovoltaic cells. Furthermore, it allows for the rapid adhesion of series-connected metal wires to the cells during handling, eliminating the need for welding, thus simplifying operations and providing better fixation.

[0057] Of course, the above description is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The present invention is also not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of the present invention should fall within the patent coverage of the present invention.

Claims

1. An adsorption-type cross-stacking mechanism for battery cells with series-connected metal wires, characterized in that: It includes several linearly arranged cross-stacked mechanism bodies, each of which includes a suction plate and a suction wire module, which includes a suction plate part and a suction wire part; the suction plate and suction wire module is connected to a lifting module located above it; the two suction plate and suction wire modules in every two adjacent cross-stacked mechanism bodies are in an adaptive plug-in relationship. The suction plate part includes a suction cup mounting adjustment plate (31), and the suction wire part includes a suction groove opening plate (32). The suction cup mounting adjustment plate (31) and the suction groove opening plate (32) are stacked alternately. On the side of the suction groove opening plate (32) that does not contact the suction cup mounting adjustment plate (31), there are a number of suction claws (35), and each suction claw (35) has a number of V-shaped suction grooves (37) fixed on its lower surface; the suction cup (33) and the V-shaped suction grooves (37) are respectively connected to the vacuum generator; Multiple insertion holes (36) are provided between the plurality of wire-suction claws (35). The number, size and location of the insertion holes (36) are adapted to the number, size and location of the suction cup mounting bosses (34). In each pair of adjacent cross-stacked mechanism bodies, the suction cup mounting bosses (34) of one suction plate and the insertion holes (36) of the other suction plate and wire-suction module are adapted to each other.

2. The adsorption-type cross-stacking mechanism for series-connected metal wire battery cells according to claim 1, characterized in that: The suction cup mounting adjustment plate (31) has several suction cup mounting bosses (34) extending from the side that does not contact the suction groove opening plate (32). Several suction cups (33) are fixedly mounted on the lower surface of each suction cup mounting boss (34).

3. The adsorption-type cross-stacking mechanism for series-connected metal wire battery cells according to claim 1, characterized in that: The lifting module includes a motor (41), which is connected to a stacking adjustment plate (43) via a transmission assembly. The stacking adjustment plate (43) is fixedly connected to the suction plate and wire suction module.

4. The adsorption-type cross-stacking mechanism for series-connected metal wire battery cells according to claim 3, characterized in that: The transmission assembly includes a lead screw, the lead screw shaft of which is connected to the output shaft of the motor (41), the slider of which is slidably connected to the linear rail, the linear rail is fixedly installed on the linear rail mounting plate (42), and the slider is connected to the stacking adjustment plate (43) through a connector.

5. A method for operating an adsorption-type cross-stacking mechanism for series-connected metal wire battery cells, applied to the cross-stacking mechanism according to any one of claims 1-4, characterized in that, The process includes the following steps: Step 1: After several cross-stacking mechanism bodies are in place, each suction module is lowered and sucked up the corresponding battery cell (1) and series wire (2) by the lifting module in each cross-stacking mechanism body; Step 2: The corresponding suction module is raised by the lifting module in each cross-stacking mechanism body to ensure that the battery cell (1) and series wire (2) reach a safe height; Step 3: The two suction modules in each pair of adjacent cross-stacking mechanism bodies are connected so that the series wire (2) sucked up in one cross-stacking mechanism body is adhered to the surface of the battery cell (1) sucked up in another cross-stacking mechanism body by an adhesive.

6. The working method of the cross-stacking mechanism according to claim 5, characterized in that: In step one, the vacuum generator is started to draw a vacuum. The suction cup (33) of the suction plate part picks up the battery cell (1), and the V-shaped suction groove (37) of the suction wire part picks up the series metal wire (2).

7. The working method of the cross-stacking mechanism according to claim 5, characterized in that: In step three, when the series metal wire (2) is attached to the surface of the battery cell (1), it intersects perpendicularly with all the sub-grid lines on the surface of the battery cell (1).

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