Photovoltaic welding strip placing method

Abstract

The invention provides a photovoltaic welding strip placing method which comprises the steps that S10, a traction clamping jaw in a welding strip traction assembly moves to a welding strip cutting assembly, a plurality of welding strips extending out of the edge of the welding strip cutting assembly are clamped and move by a certain distance in the direction away from the welding strip cutting assembly, and the welding strips are suspended and pulled out by a certain length; s20, the multiple welding strips are cut, multiple sub welding strips are obtained, and the ends, not cut, of the sub welding strips are still clamped by the traction clamping jaw; s30, pressing a part of the sub-welding strip on the battery piece by the first pressing head; s40, the clamping jaw is pulled to loosen the sub-welding strips, the second pressing head presses the other parts of the sub-welding strips on the battery piece, and therefore arrangement of the multiple sub-welding strips on the battery piece at a time is completed; wherein before the first pressure head presses a part of the sub welding strip on the battery piece, the welding strip is limited in the Y direction through the positioning piece. According to the method, a plurality of welding strips can be directly arranged on the to-be-arranged object, and the positioning precision of the welding strips arranged on the battery piece is improved.

Description

Technical Field

[0001] The present application belongs to the field of solar cell modules, and specifically, relates to a photovoltaic welding ribbon placement method. Background Art

[0002] IBC cells are a type of cell that only has positive and negative electrodes arranged alternately on the back of the cell. When arranging the solder strips in this type of solar cell module, it is necessary to place multiple cells with their backs facing up in sequence, and then alternately arrange the solder strips on the positive and negative electrodes (main grid lines) of the cell. The traditional solder strip arrangement method is to first weld multiple cells with solder strips into a cell string, and then move the multiple cell strings to a substrate assembly (usually including a lower backplane and an upper flexible board) to complete the welding of multiple cell strings to form a full-sheet battery assembly. This method of moving the cell string to the substrate assembly requires many moves and a complicated process, which may cause hidden cracks in the cell, and this type of solder strip arrangement process route requires a large equipment space.

[0003] In order to solve this problem, the applicant directly arranges the multiple battery cells required for the whole panel battery assembly on the substrate assembly, and then directly arranges the welding strips required for the whole panel battery assembly. Since there are many welding strips in the whole panel assembly, the welding strip arrangement accuracy requirements are higher, and the whole panel arrangement structure space is more complicated than the traditional method, and the traditional string welding method cannot be used to achieve the whole panel assembly arrangement. In order to solve the above problems, the applicant innovatively proposed a new method for welding strips of the whole panel assembly, which directly arranges the welding strips released from multiple welding strip rolls accurately on the substrate assembly, which requires solving how to accurately place the welding strips on the battery cells. Summary of the invention

[0004] In view of this, the present application provides a photovoltaic welding ribbon placement method, and the photovoltaic welding ribbon placement system includes: a carrying mechanism, a welding ribbon feeding assembly, a welding ribbon cutting assembly, a positioning and pressing assembly, and a welding ribbon pulling assembly which are sequentially arranged along the X direction and located above the carrying mechanism;

[0005] The positioning and pressing assembly includes a positioning member and a pressing member, the pressing member includes a first pressing head and a second pressing head, the carrying mechanism is used to carry the object to be arranged, the solder strip feeding assembly is used to release a plurality of solder strips to the solder strip cutting assembly for cutting, and the solder strip pulling assembly is used to clamp the solder strip from the solder strip cutting assembly and then pull it to the position where the solder strip is required to be placed on the battery cell;

[0006] The photovoltaic welding ribbon placement method comprises:

[0007] S10, the traction clamp in the solder ribbon traction assembly moves to the solder ribbon cutting assembly, clamps the multiple solder ribbons extending from the edge of the solder ribbon cutting assembly and moves a distance in the X direction away from the solder ribbon cutting assembly, so that the multiple solder ribbons are suspended and pulled out for a certain length;

[0008] S20, the welding strip cutting assembly cuts a plurality of welding strips to obtain a plurality of sub-welding strips, and the uncut ends of the sub-welding strips are still clamped by the traction clamp;

[0009] S30, the first pressing head presses a portion of the sub-welding ribbon onto the battery cell;

[0010] S40, the pulling clamp releases the sub-welding ribbon, and the second pressing head presses another part of the sub-welding ribbon onto the battery cell, thereby completing the arrangement of multiple sub-welding ribbons on the battery cell;

[0011] Before the first pressing head presses a part of the sub-welding strip onto the battery cell, the welding strip is limited in the Y direction by the positioning member.

[0012] Furthermore, the object to be arranged includes at least a battery cell, and the surface of the battery cell has an adhesive; in the step S30, the first pressing head presses a part of the sub-welding strip on the adhesive on the battery cell, so that the sub-welding strip adheres to the surface of the battery cell; in the step S40, the second pressing head presses another part of the sub-welding strip on the adhesive on the battery cell, so that the sub-welding strip adheres to the surface of the battery cell.

[0013] Further, limiting the solder strip in the Y direction by the positioning member includes: after the solder strip cutting assembly cuts a plurality of solder strips, the sub-solder strips are in a state of being limited by the positioning member.

[0014] Further, the positioning member includes a first lifting mechanism, a first mounting frame connected to the first lifting mechanism, and a plurality of limiting grooves arranged at intervals along the Y direction at the bottom of the first mounting frame, and the openings of the limiting grooves face downwardly toward the bearing mechanism;

[0015] The step between step S10 and step S20 includes: the first lifting mechanism descends with the limiting groove to the bottom of the limiting groove to contact the surface of the bearing mechanism, and the welding strip is located in the limiting groove;

[0016] In the step S20, after the solder strip cutting assembly cuts a plurality of solder strips, the free ends of the sub-solder strips directly fall onto the surface of the supporting mechanism, and the sub-solder strips are located in the limiting grooves.

[0017] Further, the positioning member includes a first lifting mechanism, a first mounting block connected to the first lifting mechanism, and a plurality of limiting grooves arranged in the first mounting block and spaced apart along the Y direction, wherein the openings of the limiting grooves face upward away from the bearing mechanism, and the bottoms of the limiting grooves do not completely penetrate the first mounting block;

[0018] The steps between step S10 and step S20 include: the first lifting mechanism moves up with the limiting groove until the welding strip passes through the limiting groove;

[0019] In step 20, after the solder strip cutting assembly cuts multiple solder strips, the free end of the sub-solder strip falls into the limiting groove, and the limiting groove and the traction clamp move the sub-solder strip downward toward the supporting mechanism until the free end of the sub-solder strip is within a certain range of height from the surface of the supporting mechanism.

[0020] Further, in the step 20, after the welding strip cutting assembly cuts a plurality of welding strips, the free end of the sub-welding strip falls into the limiting groove, and the limiting groove and the traction clamp move the sub-welding strip downward toward the bearing mechanism until the free end of the sub-welding strip is within a certain range of height from the surface of the bearing mechanism; at this time, the free end of the sub-welding strip is still in the limiting groove, and the bottom of the first mounting block does not contact the bearing mechanism, and then the step S30 is performed;

[0021] In the step S40, the traction clamp releases the sub-welding strip, the second pressing head presses another part of the sub-welding strip onto the battery cell, and the supporting mechanism moves the sub-welding strip arranged on the object to be arranged in a direction away from the welding strip cutting assembly, so that the free end of the sub-welding strip is disengaged from the limiting groove, thereby completing the arrangement of multiple sub-welding strips on the battery cell.

[0022] Furthermore, the certain range is greater than 0.5 mm.

[0023] Furthermore, the limiting groove includes a horizontal groove and a downwardly inclined inclined groove, and the horizontal groove is close to the welding strip cutting assembly.

[0024] Furthermore, the pressing member also includes: a second lifting mechanism, a second mounting frame connected to the second lifting mechanism, the first pressing head and the second pressing head are movably placed in a through hole opened on the second mounting frame along the Z direction, and the height of the bottom of the first pressing head relative to the supporting mechanism is lower than the height of the bottom of the second pressing head relative to the supporting mechanism; wherein, the first pressing head and the second pressing head constitute a pressing positioning mechanism, and the pressing member includes a plurality of pressing positioning mechanisms arranged at intervals along the Y direction.

[0025] Furthermore, the first pressure head and the second pressure head are respectively one of pressure head structure one or pressure head structure two, and the pressure head structure one includes: a pressure rod movably installed in the through hole of the second mounting frame, a counterweight block fixed on the top of the pressure rod, and a pressure head connected to the bottom of the pressure rod, and the size of the counterweight block is larger than the size of the through hole; and the pressure rod length of the first pressure head is greater than the pressure rod length of the second pressure head.

[0026] The second pressure head structure includes: a pressure rod, a pressure cover fixed on the top of the pressure rod, a pressure head connected to the bottom of the pressure rod, a linear bearing, a spring, and a spring limit plate installed on the second mounting frame. The pressure rod vertically passes through the linear bearing, the size of the pressure cover is larger than the inner diameter of the linear bearing, a spring is sleeved on the surface of the pressure rod near the bottom, one end of the spring abuts against the linear bearing, and the other end abuts against the spring limit plate, and the spring limit plate is installed on the pressure rod; and the pressure rod length of the first pressure head is greater than the pressure rod length of the second pressure head.

[0027] Furthermore, the photovoltaic welding ribbon placing system also includes a straightening mechanism arranged between the welding ribbon feeding assembly and the welding ribbon cutting assembly;

[0028] Before the step S10, the method further includes: the plurality of solder ribbons released by the solder ribbon feeding assembly are first straightened by the straightening mechanism and then released to the solder ribbon cutting assembly.

[0029] Furthermore, the photovoltaic welding strip placing system also includes a receiving and fixing mechanism disposed between the welding strip feeding assembly and the welding strip cutting assembly and close to the welding strip cutting assembly; the receiving and fixing mechanism includes a receiving mechanism and a clamping assembly disposed on the receiving mechanism, the receiving mechanism is used to receive the welding strip, and the clamping assembly is used to clamp the welding strip onto the receiving mechanism; the clamping assembly includes a clamping drive mechanism and a clamping member connected to the clamping drive mechanism and facing the receiving mechanism;

[0030] In step S10, after the traction clamp clamps the multiple solder strips and pulls them out to a first length from the solder strip cutting assembly, the receiving and fixing mechanism fixes the multiple solder strips, and then the traction clamp continues to pull out the multiple solder strips to a second length, and the multiple solder strips are in a straightened state.

[0031] Furthermore, the photovoltaic welding tape placement system also includes a roller arranged above the receiving mechanism and close to the welding tape cutting assembly, and at least one transverse limiter connected to the receiving mechanism, and the height between the bottom of the roller and the surface of the bearing structure is 1.0 to 1.5 times the thickness of the welding tape; the transverse limiter includes a plurality of limiter units spaced apart along the Y direction, and the limiter units are arranged one by one on the path of the welding tape feeding assembly releasing the welding tape, and each limiter unit includes a limiter channel for the welding tape to pass through, and the limiter channel is used to limit a welding tape in the Y direction;

[0032] Before the step S10, the method further includes: during the process of the plurality of solder ribbons released by the solder ribbon feeding assembly being released to the solder ribbon cutting assembly, the plurality of solder ribbons pass through the space between the roller and the receiving mechanism and the channel of the limiting unit.

[0033] The beneficial effects of the present application are as follows: a photovoltaic welding ribbon placement method is proposed, a photovoltaic welding ribbon placement system adopts the photovoltaic welding ribbon placement method, and the photovoltaic welding ribbon placement system includes a carrying mechanism and a welding ribbon feeding assembly, a welding ribbon cutting assembly, a positioning pressing assembly, and a welding ribbon pulling assembly which are arranged above the carrying mechanism and arranged in sequence along the X direction. The method can realize direct arrangement of multiple welding ribbons on the object to be arranged, and the positioning member can be used to limit the welding ribbon before it is pressed down to prevent the welding ribbon from shifting in the Y direction. The pressing member can press down the welding ribbon to make the welding ribbon and the battery cell more tightly fixed and prevent the welding ribbon from shifting in the X direction, thereby improving the positioning accuracy of the welding ribbon arranged on the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0035] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0036] Figure 1 A schematic diagram of a photovoltaic ribbon placement method proposed in this application;

[0037] Figure 2 A schematic diagram of the structure of a photovoltaic ribbon placement system according to an embodiment of the present application;

[0038] Figure 3 A schematic diagram of the structure of a positioning and pressing assembly according to an embodiment of the present application;

[0039] Figure 4 A schematic structural diagram of a positioning and pressing assembly according to another embodiment of the present application;

[0040] Figure 5 A schematic diagram of the structure of a photovoltaic ribbon placement system according to another embodiment of the present application;

[0041] Figure 6 A schematic structural diagram of a positioning member of another embodiment provided in the present application;

[0042] Among them, 10, bearing mechanism; 100, welding tape feeding assembly; 200, welding tape cutting assembly; 300, welding tape pulling assembly; 400, receiving mechanism; 500, positioning and pressing assembly; 600, pressing assembly; 900 straightening mechanism;

[0043] 510, positioning member; 520, pressing member;

[0044] 501, positioning lifting drive mechanism; 503, connecting rod;

[0045] 511, limiting groove; 5111, horizontal groove; 5112, oblique groove; 512, first mounting frame; 513, first mounting block;

[0046] 521, downward pressing positioning mechanism; 5211, first pressing head; 5212, second pressing head; 522, second mounting frame;

[0047] ①, pressure rod; ②, linear bearing; ③, spring; ④, spring limit plate; ⑤, pressure head; ⑥ counterweight. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0049] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0050] like Figure 1 , Figure 2As shown, the present application proposes a photovoltaic welding strip placement method, and the photovoltaic welding strip placement system adopts the photovoltaic welding strip placement method, wherein the photovoltaic welding strip placement system includes: a carrying mechanism 10, a welding strip feeding assembly 100 arranged in sequence along the X direction and located above the carrying mechanism 10, a welding strip cutting assembly 200, a positioning and pressing assembly 500, and a welding strip pulling assembly 300; wherein the positioning and pressing assembly 500 includes a positioning member 510 and a pressing member 520, and the pressing member 520 includes a first pressing head 5211 and a second pressing head 5212. The carrying mechanism 10 is used to carry the object to be arranged, and the arrangement object can be a battery cell directly placed on the carrying mechanism 10 (the battery cell has not been arranged on the substrate assembly), or a substrate assembly arranged with a full panel of battery cells, and the substrate assembly includes a lower rigid board and an upper flexible layer (such as a glass backboard and an EVA film, and the substrate assembly is a common structure in the prior art), but no matter which of the two, the welding strip is arranged on the battery cell. The solder strip feeding assembly 100 is used to release a plurality of solder strips to the solder strip cutting assembly 200 for cutting, and the solder strip pulling assembly 300 is used to clamp the solder strip from the solder strip cutting assembly 200 and then pull it to the position where the solder strip is required to be placed on the battery cell;

[0051] For the convenience of description, the present application takes the substrate assembly with a full panel of battery cells as an example. Further, in order to describe the working process in more detail, as one of the specific structures, Figure 2 As shown, the solder tape feeding assembly 100, the solder tape cutting assembly 200, and the positioning and pressing assembly 500 are arranged in sequence along the X direction and each of these assemblies is located above the carrying mechanism 10. The carrying mechanism 10 can move step by step along the X direction with the substrate assembly with the whole panel of battery cells carried by it, so as to complete the arrangement of the solder tapes of the whole panel of battery assemblies. Among them, the structure of the carrying mechanism 10 can be a commonly used structure in the prior art, such as a movable clamping jaw assembly, which clamps the substrate assembly with the upper clamping jaw and the lower clamping jaw in the clamping jaw assembly and drives the clamping jaw assembly to move step by step through a driver (such as a motor) to move with the substrate assembly; the carrying mechanism 10 can also be other structures, such as a movable suction cup structure, which moves with multiple suction cups through a driver (such as a motor), and the multiple suction cups adsorb the substrate assembly from the bottom. The carrying mechanism 10 can be any structure as long as it can realize the corresponding function. The solder tape feeding assembly 100 includes multiple solder tape rolls arranged at intervals along the Y direction, and the solder tape rolls are used to release multiple solder tapes along the X direction under the drive of the motor; wherein, the X direction is, for example, Figure 2 , Figure 3The X-axis direction of the horizontal plane shown in is the X-axis direction of the horizontal plane, and the Y-axis direction is the Y-axis direction of the horizontal plane. The welding strip cutting assembly 200 is used to cut the welding strip released by the welding strip feeding assembly 100. The welding strip cutting assembly 200 can be a component used for cutting welding strips in the prior art. Since the specific structure of this component is not the focus of protection of this application, it will not be repeated here; the welding strip pulling assembly 300 includes an X-direction pulling drive mechanism and a plurality of pulling claws connected to the X-direction pulling drive mechanism and arranged in sequence along the Y-direction. The pulling claws are arranged one by one on the unwinding path of the welding strip roll so that one pulling claw is used to pull and clamp a welding strip. The X-direction pulling drive mechanism is used to drive the pulling claws to move back and forth along the X-direction between the welding strip cutting assembly 200 and the position where the welding strip is required to be placed on the battery cell; here, the position where the welding strip is required to be placed on the battery cell is located after the welding strip cutting assembly 200 along the X-direction, so that the welding strip is cut first and then the cut welding strip is pulled to the position where the welding strip is required to be placed on the battery cell through the welding strip pulling assembly 300. The X-axis traction drive mechanism is, for example, a motor or a cylinder, and the traction clamp can be a commonly used structure in the prior art, for example, including an upper clamp and a lower clamp, and the upper and lower clamps are closed or opened to clamp or loosen the welding strip. In order to improve the arrangement efficiency, the welding strip is directly laid on the battery cell on the substrate assembly. By setting the positioning pressing assembly 500, the positioning accuracy of the welding strip on the battery cell can be improved.

[0052] Furthermore, the objects to be arranged include at least battery cells. Based on the process requirements, an adhesive will be set on the surface of the battery cells in advance. The adhesive can be glue or other materials that can stick the solder strips to the battery cells. For example, a glue dispenser is used to dispense glue at the required position on the surface of the battery cells. In other words, when the battery cells on the carrier mechanism 10 are transported to the placement station where the solder strip placement system is located, the surface of the battery cells already has adhesive, so that when the pressing member 520 presses down the solder strip, the solder strip can be more tightly attached to the glue on the battery cell, thereby fixing the solder strip and the battery cell.

[0053] The photovoltaic ribbon placement methods include:

[0054] S10, the traction clamp in the solder ribbon traction assembly 300 moves to the solder ribbon cutting assembly 200, clamps the multiple solder ribbons extending from the edge of the solder ribbon cutting assembly 200 and moves a distance in the X direction away from the solder ribbon cutting assembly 200, so that the multiple solder ribbons are suspended and pulled out for a certain length;

[0055] S20, the welding strip cutting assembly 200 cuts a plurality of welding strips to obtain a plurality of sub-welding strips, and the uncut end of the sub-welding strip is still clamped by the pulling clamp; wherein the sub-welding strip refers to a section of welding strip obtained after the welding strip cutting assembly 200 cuts a section of welding strip pulled out by the pulling clamp each time, and the length of the sub-welding strip is the length of the welding strip that needs to be placed on the battery cell;

[0056] S30, the first pressing head 5211 presses a portion of the sub-welding strip onto the battery cell;

[0057] S40, the clamping jaws are pulled to release the sub-welding strip, and the second pressing head 5212 presses another part of the sub-welding strip onto the battery cell, thereby completing the arrangement of multiple sub-welding strips on the battery cell;

[0058] Among them, before the first pressing head 5211 presses a part of the sub-welding strip onto the battery cell, the positioning member 510 limits the welding strip in the Y direction. In other words, the Y-direction limiting of the welding strip has been completed before pressing down. For example, before the welding strip is cut, the positioning member 510 moves until the welding strip passes through the limiting groove 511, that is, the limiting groove 511 is located on both sides of the pulled welding strip in the Y direction. After the welding strip is cut, before the first pressing head 5211 is pressed down, the welding strip is also in the state of limiting in the Y direction. Specific embodiments are listed below; for example, the Y-direction limiting of the welding strip is completed during the period between the welding strip cutting and the first pressing head 5211 pressing down. In addition, it should be noted that before the first pressing head 5211 presses down the welding strip, the state of the free end of the sub-welding strip can be directly located on the surface of the receiving mechanism 10, that is, the surface of the battery cell, or it can still be in the limiting state of the positioning member 510.

[0059] The positioning member 510 is used to limit the welding strip in the Y direction before pressing down to prevent the welding strip from shifting in the Y direction, and the pressing member 520 is used to press down the welding strip so that the welding strip and the battery cell are fixed more tightly and prevent the welding strip from shifting in the X direction, thereby improving the positioning accuracy of the welding strip placed on the battery cell.

[0060] Further, as described above, when the battery cell on the carrier mechanism 10 is transported to the solder strip placement station, the surface of the battery cell already has adhesive. In step S30, the first pressing head 5211 presses a portion of the sub-solder strip on the adhesive (glue dispensing) on ​​the battery cell, so that the sub-solder strip adheres to the surface of the battery cell;

[0061] In step S40, the second pressing head 5212 presses another part of the sub-welding ribbon onto the adhesive (glue) on the battery cell, so that the sub-welding ribbon adheres to the surface of the battery cell.

[0062] Furthermore, limiting the welding strip in the Y direction by the positioning member 510 includes: after the welding strip cutting assembly 200 cuts a plurality of welding strips (before the first pressing head 5211 presses a part of the sub-welding strip onto the battery cell), the sub-welding strip is in a state of being limited by the positioning member 510. Among them, a part of the free end of the sub-welding strip may be limited by the limiting member 510, or most of the sub-welding strip may be limited by the limiting member 510. It is preferably ensured that the welding strip is in a limited state at least after the welding strip is cut and before it is pressed down, thereby better ensuring the positioning accuracy.

[0063] Furthermore, in step S30, a portion of the sub-welding strip includes a portion of the sub-welding strip near the free end after the strip is cut; in step S40, another portion of the sub-welding strip includes a portion of the sub-welding strip near the portion clamped by the pulling clamp. By pressing down the corresponding portions of the strip twice, the sub-welding strip can be better attached to the battery cell.

[0064] As one example, Figure 3 As shown, the positioning member 510 includes a first lifting mechanism (not numbered in the figure), a first mounting frame 512 connected to the first lifting mechanism, and a plurality of limiting grooves 511 arranged at intervals along the Y direction at the bottom of the first mounting frame 512, and the openings of the limiting grooves 511 face downwardly toward the supporting mechanism 10; the first lifting mechanism can be a motor or a cylinder; the limiting grooves 511 are arranged one by one on the unwinding path of the welding strip roll so that one limiting groove 511 is used to limit one welding strip.

[0065] Between step S10 and step S20, the following is included: the first lifting mechanism with the limiting groove 511 descends to the bottom of the limiting groove 511 and contacts the surface of the supporting mechanism 10. At this time, the solder strip has been suspended and pulled out for a distance by the solder strip pulling assembly 200 and has not been cut, and the solder strip passes through the limiting groove 511; in step S20, after the solder strip cutting assembly 200 cuts multiple solder strips, the free end of the sub-solder strip directly falls into the surface of the supporting mechanism 10, and the sub-solder strip is located in the limiting groove 511, thereby completing the limitation of the Y direction of the solder strip before pressing down, and because the solder strip has passed through the limiting groove 511 before cutting, the free end of the solder strip is further prevented from being displaced in the Y direction at the moment the solder strip is cut.

[0066] Further, the limiting groove 511 preferably includes two sections of limiting groove units, which are respectively arranged at the two ends of the first mounting frame 512 along the X direction, and the two sections of limiting groove units are arranged in a colinear manner. By arranging two limiting groove units at both ends, the welding strip can be well limited in the entire length direction. At the same time, the limiting groove 511 is divided into two sections, and the middle position is reserved so that the two pressure heads of the lower pressing member 520 will not be blocked when they descend. For the positioning member 510 of this scheme structure, the lower pressing member 520 can be arranged above the positioning member 510, so that after the welding strip is cut, the traction clamp does not need to continue to move along the X direction with the sub-welding strip, and the lower pressing member 520 directly presses down to complete the pressing process. Furthermore, when the lower pressing member 520 is arranged above the positioning member 510, the two pressure heads are arranged between the two sections of limiting groove units, and the lower pressing member 520 and the positioning member 510 can also share the same lifting drive, such as a motor or a cylinder.

[0067] As another embodiment, based on some requirements, for example, when the plurality of solder strips extending from the edge of the solder strip cutting assembly 200 are slightly higher than the height of the supporting mechanism 10, the limiting groove 511 can also be set upward. Specifically, as Figure 4, Figure 5 As shown, the positioning member 510 includes a first lifting mechanism, a first mounting block 513 connected to the first lifting mechanism, and a plurality of limiting grooves 511 arranged in the first mounting block 513 and spaced apart along the Y direction, the opening of the limiting groove 511 faces upward away from the bearing mechanism 10, and the bottom of the limiting groove 511 does not completely penetrate the first mounting block 513; the limiting grooves 511 are arranged one by one on the unwinding path of the welding strip roll so that one limiting groove 511 is used to limit one welding strip. The first lifting mechanism can be a motor or a cylinder.

[0068] Between step S10 and step S20, the first lifting mechanism with the limiting groove 511 rises to the position where the welding strip passes through the limiting groove 511 (located between the welding strip cutting assembly 200 and the welding strip pulling assembly 300); before cutting, when the welding strip passes through the limiting groove 511, the free end of the welding strip can be prevented from being offset in the Y direction at the moment when the welding strip is cut. In step 20, after the welding strip cutting assembly 200 cuts a plurality of welding strips, the free end of the sub-welding strip falls into the limiting groove 511. In order to make the welding strip fall onto the carrying mechanism 10 from a slightly higher position, the first lifting mechanism with the limiting groove 511 and the lifting and pulling drive mechanism with the pulling claws move downward toward the carrying mechanism 10 until the height of the free end of the sub-welding strip from the battery cell on the surface of the carrying mechanism 10 is within a certain range (preferably 0.5mm to 1.0mm). It can be seen from this that when the multiple solder strips extending from the edge of the solder strip cutting assembly 200 are slightly higher than the height of the carrier mechanism 10, the solder strip traction assembly 200 preferably further includes a lifting traction drive mechanism, which is connected to the X-axis traction drive mechanism, and the lifting traction drive mechanism is used to drive the traction clamp to move upward and downward toward the movable carrier mechanism 10. The lifting traction drive mechanism can be, for example, a motor or a cylinder.

[0069] Further, in step 20, after the welding strip cutting assembly 200 cuts multiple welding strips, the free end of the sub-welding strip falls into the limiting groove 511, and the limiting groove 511 and the traction clamp carry the sub-welding strip downward toward the supporting mechanism 10 until the free end of the sub-welding strip is within a certain range of height from the surface of the supporting mechanism 10; at this time, the free end of the sub-welding strip is still located in the limiting groove 511, and the bottom of the first mounting block 513 does not contact the supporting mechanism 10. In this state, step S30 is executed again, that is, before the first pressing head 5211 is pressed down, the free end of the sub-welding strip is still in a state of being limited by the positioning member 510, so as to avoid the Y-direction position deviation when the free end of the sub-welding strip falls directly on the surface of the battery cell on the supporting mechanism 10.

[0070] In step S40, the pulling jaw releases the sub-welding strip, and the second pressing head 5212 presses the other part of the sub-welding strip onto the battery cell. The lower pressing member 520 rises and moves away from the supporting mechanism 10. The supporting mechanism 10 moves with the sub-welding strip that has been arranged on the battery cell away from the welding strip cutting assembly 200, so that the free end of the sub-welding strip is separated from the limiting groove 511, thereby completing the arrangement of multiple sub-welding strips on the battery cell.

[0071] Furthermore, the above-mentioned certain range is greater than 0.5 mm, wherein the smaller the range is, the better the effect of the welding strip being attached to the battery cell; wherein the bottom of the first mounting block 513 in step S20 does not contact the supporting mechanism 10, thereby preventing the first mounting block 513 from contacting and rubbing the already arranged welding strip when the final supporting mechanism 10 moves with the sub-welding strip already arranged on the battery cell in a direction away from the welding strip cutting assembly 200.

[0072] Furthermore, if Figure 6 As shown, the limiting groove 511 includes a horizontal groove 5111 and a downwardly inclined inclined groove 5112, the horizontal groove 5111 is close to the welding strip cutting assembly 200, and the inclined groove 5112 is relatively far away from the welding strip cutting assembly 200. Through the setting form of the limiting groove 511, the part of the welding strip located between the welding strip cutting assembly 200 and the welding strip pulling assembly 300 before cutting is located in the horizontal groove 5111, when the first mounting block 513 is lowered to a certain height (close to the surface of the supporting mechanism 10 but not in contact with the supporting mechanism 10), the sub-welding strip is still located in the horizontal groove 511, and then the free end of the welding strip moves along the X direction and downward under the drive of the welding strip pulling assembly 200, and continues to move along the inclined groove 5112 for a distance until the free end of the sub-welding strip is within the above-mentioned certain range from the height of the surface of the supporting mechanism 10, thereby allowing the welding strip to fall on the battery cell more smoothly from a higher position and better adhere to the battery cell.

[0073] It should be noted that, with respect to the limiting groove 511 of this embodiment, Figure 6 As shown, in order to better limit the welding strip, the top opening of the limiting groove 511 is larger than the lower opening of the limiting groove 511. The larger top opening is convenient for the welding strip to pass through, and the smaller bottom opening is convenient for limiting (but the width of the entire limiting groove 511 is greater than the width of the welding strip).

[0074] As another embodiment, the pressing member 520 further includes: a second lifting mechanism, a second mounting frame 522 connected to the second lifting mechanism, a first pressing head 5211 and a second pressing head 5212 are movably placed in a through hole opened on the second mounting frame 522 along the Z direction, and the height of the bottom of the first pressing head 5211 relative to the supporting mechanism 10 is lower than the height of the bottom of the second pressing head 5212 relative to the supporting mechanism 10; wherein the first pressing head 5211 and the second pressing head 5212 constitute a pressing positioning mechanism 521, and the pressing member 520 includes a plurality of pressing positioning mechanisms 521 spaced apart along the Y direction. The second lifting mechanism may be a motor or a cylinder, etc.

[0075] As one of the embodiments, step S30 and step S40 are more specific. The second lifting mechanism brings the entire downward pressing positioning mechanism 521 down to the bottom of the first pressing head 5211 and reaches the surface of the supporting mechanism 10, so that the first pressing head 5211 contacts the solder strip and applies downward pressure to the cut sub-solder strip, pressing a portion of the sub-solder strip on the battery cell, so that a portion of the sub-solder strip fully contacts the glue point on the surface of the battery cell; then the pulling claw releases the sub-solder strip, and the positioning lifting drive mechanism 501 continues to descend to the second pressing head 521 with the downward pressing positioning mechanism 521. The bottom of the head 5212 reaches the surface of the supporting mechanism 10, so that the second pressing head 5212 also contacts the sub-welding strip and applies downward pressure to the other part of the cut sub-welding strip. The second pressing head 5212 presses the other part of the sub-welding strip on the battery cell, so that the other part of the sub-welding strip fully contacts the glue point on the surface of the battery cell. The supporting mechanism 10 moves the welding strip and the battery cell along the positive direction of X for a distance (depending on the distance between the adjacent welding strips actually arranged along the X direction), thereby completing the arrangement of multiple sub-welding strips on the battery. After the cutting is completed, one end becomes a free end and the other end is clamped by the welding strip pulling assembly 300. The welding strip material is relatively soft. By pressing two pressing heads of different heights in steps, it is possible to avoid the clamped and straightened welding strip from being deformed by pressing when there is only one pressing head, and to prevent the welding strip from being stuck to the welding strip due to the flux coated on the surface of the pulling clamp, so that the welding strip is moved with the pulling clamp and the position shifts in the X direction.

[0076] Furthermore, when the second lifting mechanism and the first lifting mechanism are the same lifting mechanism, if Figure 3 , Figure 4As shown, for example, at this time it is called a positioning and lifting drive mechanism 501, the second mounting frame 522 is fixedly connected to the positioning and lifting drive mechanism 501, and the first mounting frame 512 is movably connected to the second mounting frame 522 so that after the limiting slot 511 drops to the first height, the positioning and lifting drive mechanism 501 continues to carry the downward pressure positioning mechanism 521 to descend, and the limiting slot 511 will not continue to descend to prevent the limiting slot 511 from continuing to descend and crushing the battery cell. Specifically, an opening is provided on the second mounting frame 522, and a connecting rod 503 extending along the Z direction is installed on the surface of the first mounting frame 512. The connecting rod 503 passes through the opening and is vertically slidably connected to the second mounting frame 512 along the Z direction so that the first mounting frame 512 is movably connected to the second mounting frame 522, so that after the limiting groove 511 is dropped to the first height, when the positioning lifting drive mechanism 503 continues to bring the downward positioning mechanism 521 to drop, the limiting groove 511 will not continue to drop to avoid crushing the battery cell; the height of the first mounting frame 512 is lower than the height of the second mounting frame 522, thereby realizing that when the positioning lifting drive mechanism 503 brings the positioning member 510 to drop, the limiting groove 511 first drops to the position on the surface of the movable supporting mechanism 10, and then the two pressure heads are respectively dropped to the positions on the surface of the movable supporting mechanism 10.

[0077] As another example, Figure 3 , Figure 4 As shown, the first pressure head 5211 and the second pressure head 5212 are divided into a pressure head structure 1 ( Figure 3 ) or pressure head structure 2 ( Figure 4 ), wherein the pressure head structure 1 comprises: a pressure rod ① movably mounted in the through hole of the second mounting frame 511, a counterweight ⑥ fixed on the top of the pressure rod ①, and a pressure head ⑤ connected to the bottom of the pressure rod ①, the size of the counterweight ⑥ is larger than the size of the through hole of the second mounting frame 511; and the pressure rod length of the first pressure head 5211 is larger than the pressure rod length of the second pressure head 5212. Through the pressure head of the above structure, the first pressure head 5211 and the second pressure head 5212 can be movably mounted in the second mounting frame 511, and through the setting of the counterweight ⑥, not only can the downward force be increased, but also the weight of the counterweight ⑥ can be designed according to actual needs so that the two pressure heads will not crush the battery cells.

[0078] The second pressure head structure includes: a pressure rod ①, a pressure cover fixed on the top of the pressure rod ①, a pressure head ⑤ connected to the bottom of the pressure rod ①, a linear bearing ② installed on the second mounting frame 522, a spring ③, and a spring stop plate 5214. The pressure rod ① vertically passes through the linear bearing ②, and the size of the pressure cover is larger than the inner diameter of the linear bearing ② (the size of the pressure rod ① except the top is smaller than the inner diameter of the linear bearing ② so as to pass through the linear bearing ②), thereby realizing that the pressure rod ① is placed on the second mounting frame 522 in a movable manner along the Z direction. A spring ③ is sleeved on the surface of the pressure rod ① near the bottom, one end of the spring ③ abuts against the linear bearing ②, and the other end abuts against the spring stop plate 5214, that is, the spring ③ is also movably arranged and is not connected to the linear bearing ② and the spring stop plate 5214, and the spring stop plate ④ is installed on the pressure rod ①; the spring stop plate ④ is used to prevent the spring ③ from falling down naturally, and at the same time, the spring ③ has a certain pre-pressure, so that the pressure rod ① is pushed downward. In addition, the pressure rod length of the first pressure head 5211 is greater than the pressure rod length of the second pressure head 5212. By using a pressure head with a spring ③ and movably arranged on the second mounting frame 522, the pressure head can apply a greater downward force to the welding strip, while preventing the pressure rod ① from getting stuck in the linear bearing ② during or after pressing down, affecting the next pressing down.

[0079] As another example, Figure 5 As shown, the photovoltaic welding ribbon placement system also includes a straightening mechanism 900 arranged between the welding ribbon feeding assembly 100 and the welding ribbon cutting assembly 200; the straightening mechanism 900 can adopt an existing conventional structure in the prior art, such as a first fixed block, a second fixed block and a straightening drive mechanism connected to one of the first block or the second fixed block, the first fixed block and the second fixed block include a channel for the welding ribbon to pass through, when the first fixed block and the second fixed block fix the welding ribbon, the straightening drive mechanism works to make the first fixed block and the second fixed block move away from each other, thereby realizing the straightening work before cutting the welding ribbon.

[0080] Before step S10, the process also includes: the plurality of solder strips released by the solder strip feeding assembly 100 are straightened by the straightening mechanism 600 and then released to the solder strip cutting assembly 200. By straightening the solder strips before cutting, the solder strips can be prevented from warping up after cutting and affecting subsequent processes.

[0081] As another example, Figure 2As shown, the photovoltaic welding strip placement system also includes a receiving and fixing mechanism arranged between the welding strip feeding assembly 100 and the welding strip cutting assembly 200 and close to the welding strip cutting assembly 200; the receiving and fixing mechanism includes a receiving mechanism 400 and a clamping assembly 600 arranged on the receiving mechanism 400, the receiving mechanism 400 is used to receive the welding strip, the receiving mechanism 400 is located above the bearing mechanism 10, and the clamping assembly 600 is used to clamp the welding strip on the receiving mechanism; the clamping assembly 600 includes a clamping drive mechanism and a clamping member connected to the clamping drive mechanism and facing the receiving mechanism; by setting the receiving mechanism 400, the welding strip is released from the welding strip roll at a relatively higher position to the position of the welding strip cutting assembly 200, which can be better received. The clamping assembly 500 can cooperate with the welding strip pulling assembly 300 to straighten the welding strip when pulling the welding strip, and is used to clamp the welding strip on the receiving mechanism 400 when the welding strip cutting assembly 200 cuts the welding strip for easy cutting. The solder strip cutting assembly 200 is arranged outside the receiving mechanism 400 to facilitate the solder strip pulling assembly 300 to clamp the solder strip after the solder strip cutting assembly 200 has cut the solder strip and expose the free end of the cut solder strip outside the receiving mechanism 400.

[0082] In step S10, after the traction clamps the plurality of solder strips and pulls them out of the first length from the solder strip cutting assembly 200, the receiving and fixing mechanism fixes the plurality of solder strips, that is, the pressing assembly 500 presses the solder strips on the surface of the receiving mechanism 400, and then the traction clamps the plurality of solder strips and continues to pull them out of the second length, at which time the plurality of solder strips are in a straightened state. By straightening the solder strips before cutting, the solder strips can be prevented from warping up after cutting and affecting subsequent processes.

[0083] As another example, Figure 2 As shown, the photovoltaic welding ribbon placing system also includes a roller 700 arranged above the receiving mechanism 400 and close to the welding ribbon cutting assembly 200, and at least one transverse limiter 800 connected to the receiving mechanism 400, and the height between the bottom of the roller 700 and the surface of the bearing structure 400 is 1.0 to 1.5 times the thickness of the welding ribbon; the transverse limiter 800 includes a plurality of limiter units spaced apart along the Y direction, and the limiter units are arranged one by one on the welding ribbon release path of the welding ribbon roll of the welding ribbon feeding assembly 100, and each limiter unit includes a limiter channel for the welding ribbon to pass through, and the limiter channel is used to limit a welding ribbon in the Y direction;

[0084] Before step S10, it also includes: during the process of releasing the multiple solder ribbons released by the solder ribbon feeding assembly 100 to the solder ribbon cutting assembly 200, the space between the roller 700 and the receiving mechanism 400 and the channel of the limiting unit are passed through. By setting the roller 700, it is possible to prevent the tin layer on the surface of the solder ribbon from being damaged, resulting in a lack of tin on the surface of the solder ribbon, affecting the welding effect of the next process, and at the same time, it is conducive to a better cutting effect. When the height is too high, the solder ribbon is prone to shaking up and down, and when the height is too low, the solder ribbon cannot pass between the roller 700 and the receiving mechanism 400. When the solder ribbon is released from the solder ribbon roll to the solder ribbon cutting assembly 200, the limiting channel can limit and guide the solder ribbon in the Y direction, and when the solder ribbon is cut off by the solder ribbon cutting assembly 200, the cut end of the solder ribbon remaining on the receiving mechanism 400 after cutting will not be offset in the Y direction due to the limitation of the limiting channel, thereby facilitating the subsequent solder ribbon traction assembly 300 to traction and move the solder ribbon again. When the receiving mechanism is Figure 4 When the structure of the upper clamping plate and the lower clamping plate is used, a transverse limit member 800 can be set on the lower clamping plate.

[0085] When the photovoltaic welding strip placement system includes the supporting and fixing mechanism of the above-mentioned structure, and the opening of the limiting groove 511 faces the supporting mechanism 10, it is further preferred that the height between the surface of the supporting mechanism 400 and the surface of the supporting mechanism 10 is H1, and the depth of the limiting groove 511 is greater than H1, thereby ensuring that when the limiting groove 511 descends to the surface of the movable supporting mechanism 10, the limiting groove 511 will not press down the straightened welding strip to cause the welding strip to be compressed and deformed.

[0086] The photovoltaic welding ribbon placement method proposed in the present application can limit the welding ribbon before it is pressed down through the positioning member to prevent the welding ribbon from shifting in the Y direction. By pressing the welding ribbon down through the pressing member, the welding ribbon and the battery cell can be fixed more tightly and the welding ribbon can be prevented from shifting in the X direction, thereby improving the positioning accuracy of the welding ribbon arranged on the battery cell.

[0087] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0088] It should be noted that in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0089] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0090] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A photovoltaic welding ribbon placement method, characterized in that: The photovoltaic welding ribbon placement system includes: a carrying mechanism, a welding ribbon feeding assembly, a welding ribbon cutting assembly, a positioning and pressing assembly, and a welding ribbon pulling assembly which are sequentially arranged along the X direction and located above the carrying mechanism; The positioning and pressing assembly includes a positioning member and a pressing member, the pressing member includes a first pressing head and a second pressing head, the carrying mechanism is used to carry the object to be arranged, the solder strip feeding assembly is used to release a plurality of solder strips to the solder strip cutting assembly for cutting, and the solder strip pulling assembly is used to clamp the solder strip from the solder strip cutting assembly and then pull it to the position where the solder strip is required to be placed on the battery cell; The photovoltaic welding ribbon placement method comprises: S10, the traction clamp in the solder ribbon traction assembly moves to the solder ribbon cutting assembly, clamps the multiple solder ribbons extending from the edge of the solder ribbon cutting assembly and moves a distance in the X direction away from the solder ribbon cutting assembly, so that the multiple solder ribbons are suspended and pulled out for a certain length; S20, the welding strip cutting assembly cuts a plurality of welding strips to obtain a plurality of sub-welding strips, and the uncut ends of the sub-welding strips are still clamped by the traction clamp; S30, the first pressing head presses a portion of the sub-welding ribbon onto the battery cell; S40, the pulling clamp releases the sub-welding ribbon, and the second pressing head presses another part of the sub-welding ribbon onto the battery cell, thereby completing the arrangement of multiple sub-welding ribbons on the battery cell; Before the first pressing head presses a part of the sub-welding strip onto the battery cell, the welding strip is limited in the Y direction by the positioning member.

2. The photovoltaic ribbon placement method according to claim 1, characterized in that: The object to be arranged includes at least a battery cell, and the surface of the battery cell has an adhesive; In the step S30, the first pressing head presses a portion of the sub-welding ribbon onto the adhesive on the battery cell, so that the sub-welding ribbon adheres to the surface of the battery cell; In the step S40, the second pressing head presses another portion of the sub-welding ribbon onto the adhesive on the battery cell, so that the sub-welding ribbon adheres to the surface of the battery cell.

3. The photovoltaic ribbon placement method according to claim 1, characterized in that: The limiting the welding strip in the Y direction by the positioning member comprises: After the solder strip cutting assembly cuts a plurality of solder strips, the sub-solder strips are in a state of being limited by the positioning member.

4. The photovoltaic ribbon placement method according to claim 1, characterized in that: The positioning member includes a first lifting mechanism, a first mounting frame connected to the first lifting mechanism, and a plurality of limiting grooves arranged at intervals along the Y direction at the bottom of the first mounting frame, wherein the openings of the limiting grooves face downwardly toward the bearing mechanism; The step between step S10 and step S20 includes: the first lifting mechanism descends with the limiting groove to the bottom of the limiting groove to contact the surface of the bearing mechanism, and the welding strip is located in the limiting groove; In the step S20, after the solder strip cutting assembly cuts a plurality of solder strips, the free ends of the sub-solder strips directly fall onto the surface of the supporting mechanism, and the sub-solder strips are located in the limiting grooves.

5. The photovoltaic ribbon placement method according to claim 1, characterized in that: The positioning member includes a first lifting mechanism, a first mounting block connected to the first lifting mechanism, and a plurality of limiting grooves arranged in the first mounting block and spaced apart along the Y direction, wherein the openings of the limiting grooves face upward away from the bearing mechanism, and the bottoms of the limiting grooves do not completely penetrate the first mounting block; The steps between step S10 and step S20 include: the first lifting mechanism moves up with the limiting groove until the welding strip passes through the limiting groove; In step 20, after the solder strip cutting assembly cuts multiple solder strips, the free end of the sub-solder strip falls into the limiting groove, and the limiting groove and the traction clamp move the sub-solder strip downward toward the supporting mechanism until the free end of the sub-solder strip is within a certain range of height from the surface of the supporting mechanism.

6. The photovoltaic ribbon placement method according to claim 5, characterized in that: In the step 20, after the welding strip cutting assembly cuts a plurality of welding strips, the free end of the sub-welding strip falls into the limiting groove, and the limiting groove and the traction clamp move the sub-welding strip downward toward the bearing mechanism until the free end of the sub-welding strip is within a certain height range from the surface of the bearing mechanism; at this time, the free end of the sub-welding strip is still in the limiting groove, and the bottom of the first mounting block does not contact the bearing mechanism, and then the step S30 is performed; In the step S40, the traction clamp releases the sub-welding strip, the second pressing head presses another part of the sub-welding strip onto the battery cell, and the supporting mechanism moves the sub-welding strip arranged on the object to be arranged in a direction away from the welding strip cutting assembly, so that the free end of the sub-welding strip is disengaged from the limiting groove, thereby completing the arrangement of multiple sub-welding strips on the battery cell.

7. The photovoltaic ribbon placement method according to claim 5, characterized in that: The certain range is greater than 0.5 mm.

8. The photovoltaic ribbon placement method according to claim 5, characterized in that: The limiting groove includes a horizontal groove and a downwardly inclined groove, and the horizontal groove is close to the welding strip cutting component.

9. The photovoltaic ribbon placement method according to claim 1, characterized in that: The pressing member further includes: a second lifting mechanism, a second mounting frame connected to the second lifting mechanism, the first pressing head and the second pressing head are movably placed in a through hole opened on the second mounting frame along the Z direction, and the height of the bottom of the first pressing head relative to the supporting mechanism is lower than the height of the bottom of the second pressing head relative to the supporting mechanism; wherein the first pressing head and the second pressing head constitute a pressing positioning mechanism, and the pressing member includes a plurality of pressing positioning mechanisms spaced apart along the Y direction.

10. The photovoltaic ribbon placement method according to claim 9, characterized in that: The first pressing head and the second pressing head are respectively one of pressing head structure one or pressing head structure two, and the pressing head structure one includes: a pressing rod movably installed in the through hole of the second mounting frame, a counterweight block fixed on the top of the pressing rod, and a pressing head connected to the bottom of the pressing rod, and the size of the counterweight block is larger than the size of the through hole; and the length of the pressing rod of the first pressing head is greater than the length of the pressing rod of the second pressing head. The second pressure head structure includes: a pressure rod, a pressure cover fixed on the top of the pressure rod, a pressure head connected to the bottom of the pressure rod, a linear bearing, a spring, and a spring limit plate installed on the second mounting frame. The pressure rod vertically passes through the linear bearing, the size of the pressure cover is larger than the inner diameter of the linear bearing, a spring is sleeved on the surface of the pressure rod near the bottom, one end of the spring abuts against the linear bearing, and the other end abuts against the spring limit plate, and the spring limit plate is installed on the pressure rod; and the pressure rod length of the first pressure head is greater than the pressure rod length of the second pressure head.

11. The photovoltaic ribbon placement method according to claim 1, characterized in that: The photovoltaic welding ribbon placement system also includes a straightening mechanism arranged between the welding ribbon feeding assembly and the welding ribbon cutting assembly; Before the step S10, the method further includes: the plurality of solder ribbons released by the solder ribbon feeding assembly are first straightened by the straightening mechanism and then released to the solder ribbon cutting assembly.

12. The photovoltaic ribbon placement method according to claim 1, characterized in that: The photovoltaic welding strip placement system also includes a receiving and fixing mechanism disposed between the welding strip feeding assembly and the welding strip cutting assembly and close to the welding strip cutting assembly; the receiving and fixing mechanism includes a receiving mechanism and a clamping assembly disposed on the receiving mechanism, the receiving mechanism is used to receive the welding strip, and the clamping assembly is used to clamp the welding strip onto the receiving mechanism; the clamping assembly includes a clamping drive mechanism and a clamping member connected to the clamping drive mechanism and facing the receiving mechanism; In step S10, after the traction clamp clamps the multiple solder strips and pulls them out to a first length from the solder strip cutting assembly, the receiving and fixing mechanism fixes the multiple solder strips, and then the traction clamp continues to pull out the multiple solder strips to a second length, and the multiple solder strips are in a straightened state.

13. The photovoltaic ribbon placement method according to claim 12, characterized in that: The photovoltaic welding tape placement system also includes a roller arranged above the receiving mechanism and close to the welding tape cutting assembly, and at least one transverse limiter connected to the receiving mechanism, wherein the height between the bottom of the roller and the surface of the bearing structure is 1.0 to 1.5 times the thickness of the welding tape; the transverse limiter includes a plurality of limiter units spaced apart along the Y direction, the limiter units are arranged one by one on the path where the welding tape feeding assembly releases the welding tape, and each limiter unit includes a limiter channel for the welding tape to pass through, and the limiter channel is used to limit a welding tape in the Y direction; Before the step S10, the method further includes: during the process of the plurality of solder ribbons released by the solder ribbon feeding assembly being released to the solder ribbon cutting assembly, the plurality of solder ribbons pass through the space between the roller and the receiving mechanism and the channel of the limiting unit.

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