Photovoltaic series welding equipment

Abstract

The photovoltaic series welding equipment comprises a string dividing mechanism, a welding strip cleaning mechanism and a recycling assembly, the string dividing mechanism comprises a conveying belt, a cutting platform and a cutting knife, the conveying belt is used for conveying battery strings so that the battery strings can move and pass through the cutting platform, and the cutting knife is arranged above the cutting platform and can do lifting motion relative to the cutting platform; and the welding strip cleaning mechanism is used for cleaning the welding strip which is cut and falls onto the cutting platform to the recycling assembly, so that automatic cleaning of the waste welding strip is realized, and the production efficiency is improved. According to the photovoltaic series welding equipment, the welding strips can be cleaned and recycled, so that the problems of equipment failure or hidden cracks or short circuit of the battery strings caused by the waste welding strips are avoided, and the production yield of the battery strings is improved by the photovoltaic series welding equipment.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic string welding device. Background Art

[0002] With the rapid development of the photovoltaic industry, PV module manufacturing equipment is being updated at an increasingly rapid pace. Stringing equipment is an essential piece of equipment in PV module manufacturing. Stringing equipment connects multiple solar cells in series using solder ribbons to form a string. At the beginning and end of welding, the string passes through a cutter, where the cutter removes any excess ribbon from the head of the first string (i.e., the first string cut during stringing) and the tail of the last string (i.e., the last string cut during stringing). This discarded ribbon can easily remain at the cutter. If not promptly removed, it can cause production time to stall and the string to remain idle for extended periods, leading to defects such as cold or over-welding. Furthermore, if any discarded ribbon remains at the cutter, it can be transferred to the unloading conveyor or become stuck at the cutter during stringing, causing defects such as hidden cracks or short circuits in the string.

[0003] In the prior art, after the ribbon is cut, the soldering machine will sound an alarm to prompt the operator to clean up the waste ribbon. The alarm will not go away and the machine will resume operation until the operator manually cleans up the waste ribbon. This method of cleaning up the waste ribbon is inefficient and affects the production efficiency of the soldering machine. Utility Model Content

[0004] Based on this, the present application provides a photovoltaic string welding device to solve the technical problem of how to automatically clean up waste welding ribbons to improve production efficiency and battery string yield.

[0005] The present application provides a photovoltaic string welding device, which includes a string separation mechanism, a solder strip cleaning mechanism and a recycling component. The string separation mechanism includes a conveyor belt, a cutting platform and a cutting knife. The conveyor belt is used to transmit battery strings so that the battery strings move through the cutting platform. The cutting knife is arranged above the cutting platform. The cutting knife can be raised and lowered relative to the cutting platform to cut the solder strips on the battery strings at the corresponding cutting platform. The solder strip cleaning mechanism is used to clean the solder strips that have been cut and dropped onto the cutting platform to the recycling component.

[0006] In one embodiment, the string dividing mechanism includes a mounting plate and a lifting assembly, the mounting plate is located above the cutting platform, the cutting knife is installed on the mounting plate, the mounting plate is connected to the lifting assembly, and the lifting assembly can drive the mounting plate to move up and down relative to the cutting platform.

[0007] In one embodiment, the welding strip cleaning mechanism includes a first cylinder, a second cylinder, a first brush, a second brush and a translation assembly, the first brush and the second brush are respectively connected to the first cylinder and the second cylinder, the first cylinder can drive the first brush to contact or leave the cutting platform, the first cylinder can drive the first brush to contact or leave the cutting platform, the first cylinder and the first brush are located on one side of the cutting knife, the second cylinder and the second brush are located on the other side of the cutting knife, the translation assembly is connected to the mounting plate, and the translation assembly is used to drive the first cylinder and the second cylinder to translate in a direction parallel to the cutting knife.

[0008] In one embodiment, the weld strip cleaning mechanism includes a connecting plate, the first cylinder and the second cylinder are installed on the connecting plate, the connecting plate is connected to the translation assembly, and the connecting plate can move translationally in a direction parallel to the cutting knife under the drive of the translation assembly.

[0009] In one embodiment, the recycling assembly includes a guide member and a collection box, and the guide member can guide the solder ribbon cleaned from the cutting platform to slide into the collection box.

[0010] In one embodiment, part of the structure of the conveyor belt is located below the cutting platform, and the conveyor belt forms a first receiving surface and a second receiving surface on the input side and the output side of the cutting platform, respectively. When the conveyor belt transports the battery string, the battery string can move from the first receiving surface to the cutting platform, and can move from the cutting platform to the second receiving surface.

[0011] In one embodiment, the photovoltaic string welding equipment includes a first support frame and a second support frame arranged at intervals, the first support frame and the second support frame are both provided with rollers, and the conveyor belt is wound around the rollers on the first support frame and the rollers on the second support frame.

[0012] In one embodiment, the photovoltaic string welding equipment includes a mounting frame, the mounting frame is located between the first support frame and the second support frame, the cutting platform is installed on the mounting frame, the mounting frame is provided with the roller, and the conveyor belt is wound around the roller on the mounting frame.

[0013] In one embodiment, the photovoltaic string welding equipment includes a translation drive mechanism, which is connected to the mounting frame, and the translation drive mechanism can drive the mounting frame to move translationally along the direction in which the conveyor belt transmits the battery string.

[0014] In one embodiment, the translation drive mechanism includes a screw rod and a drive motor, the screw rod is connected to the mounting frame, and the drive motor can drive the screw rod to rotate, so that the screw rod drives the mounting frame to move in translation.

[0015] The above-mentioned photovoltaic string welding equipment is provided with a welding ribbon cleaning mechanism and a recycling component at the cutting knife. The welding ribbon cleaning mechanism can clean the welding ribbon that has been cut and dropped onto the cutting platform to the recycling component. The photovoltaic string welding equipment can not only meet the need of cutting the battery string into strings, but also cut, clean and recycle the excess welding ribbon at the head of the first battery string and the excess welding ribbon at the tail of the last battery string, thereby realizing automatic cleaning of waste welding ribbon and improving production efficiency. Since the photovoltaic string welding equipment of the present application can clean and recycle welding ribbons, it avoids the problem of equipment failure caused by waste welding ribbons or causing defects such as hidden cracks or short circuits in the battery string. Therefore, the photovoltaic string welding equipment of the present application improves the production yield of the battery string. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0017] Figure 1 This is a schematic structural diagram of a photovoltaic string welding device according to one embodiment of the present application.

[0018] Figure 2 This is a schematic structural diagram of a photovoltaic string welding device according to another embodiment of the present application.

[0019] Figure 3 for Figure 2 A front view of a photovoltaic string welding device is shown.

[0020] Figure 4 This is a partial structural diagram of the welding ribbon cleaning mechanism, recycling assembly and cutting platform in the photovoltaic string welding equipment according to one embodiment of the present application.

[0021] Figure 5 This is a schematic diagram of the structure of the translational component of the welding ribbon cleaning mechanism in the photovoltaic string welding equipment according to one embodiment of the present application.

[0022] Figure 6 This is a partial structural diagram of the welding ribbon cleaning mechanism in the photovoltaic string welding equipment according to one embodiment of the present application.

[0023] Figure 7This is a schematic structural diagram of a recycling component in a photovoltaic string welding device according to one embodiment of the present application.

[0024] Description of reference numerals:

[0025] 10. String-dividing mechanism; 11. Conveyor belt; 111. First material-receiving surface; 112. Second material-receiving surface; 12. Cutting platform; 121. Feeding side; 122. Discharging side; 13. Roller; 14. Mounting plate; 15. Lifting assembly; 151. Lifting cylinder; 152. Lifting seat; 101. First support frame; 102. Second support frame; 103. Mounting frame; 104. Base; 20. Welding strip cleaning mechanism; 21. First cylinder; 22. Second cylinder; 23. First brush; 24. Second brush; 25. Translation assembly; 251. Moving seat; 252. Magnetic rodless cylinder; 26. Connecting plate; 27. Connecting piece; 30. Recovery assembly; 31. Guide piece; 311. Guide chute; 32. Collection box; 40. Translation drive mechanism; 41. Screw; 42. Drive motor. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 this application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0032] See Figure 1 As shown, one embodiment of the present application provides a photovoltaic string welding device, comprising a string separation mechanism 10, a solder ribbon cleaning mechanism 20, and a recycling assembly 30. The string separation mechanism 10 includes a conveyor belt 11, a cutting platform 12, and a cutting knife (not shown). The conveyor belt 11 is used to transport the battery strings so that the battery strings move across the cutting platform 12. The cutting knife is located above the cutting platform 12 and can move up and down relative to the cutting platform 12 to cut the solder ribbons on the battery strings at the corresponding cutting platform 12. The solder ribbon cleaning mechanism 20 is used to clean the solder ribbons that have fallen onto the cutting platform 12 and transfer them to the recycling assembly 30.

[0033] The photovoltaic string welding equipment of the present application can not only meet the needs of cutting the battery strings into strings, but also cut, clean and recycle the excess welding ribbons at the head of the first battery string and the excess welding ribbons at the tail of the tail battery string, thereby realizing automatic cleaning of waste welding ribbons and improving production efficiency.

[0034] Since the photovoltaic string welding equipment of the present application can clean and recycle the welding ribbons, it avoids the problems of equipment failure caused by discarded welding ribbons or causing defects such as hidden cracks or short circuits in the battery string. Therefore, the photovoltaic string welding equipment of the present application improves the production yield of the battery string.

[0035] In some embodiments, a portion of the conveyor belt 11 is located below the cutting platform 12, and the conveyor belt 11 forms a first receiving surface 111 and a second receiving surface 112 on the inlet side 121 and outlet side 122 of the cutting platform 12, respectively. When the conveyor belt 11 transports the battery string, the battery string can move from the first receiving surface 111 to the cutting platform 12, and can also move from the cutting platform 12 to the second receiving surface 112.

[0036] Continue reading Figure 1 As shown, the conveyor belt 11 is connected end to end, and a plurality of rollers 13 are provided on the movement path of the conveyor belt 11. The plurality of rollers 13 guide the conveyor belt 11, so that the conveyor belt 11 can stably transport the battery cells on a fixed movement path.

[0037] The number and location of the rollers 13 are not limited, as long as the conveyor belt 11 can meet the transmission needs of the battery string under the guidance of the rollers 13. Figure 2 and Figure 3 As shown, in some embodiments, the photovoltaic string welding equipment includes a first support frame 101 and a second support frame 102 spaced apart. The first support frame 101 and the second support frame 102 are both provided with rollers 13, and the conveyor belt 11 is wound around the rollers 13 located on the first support frame 101 and the rollers 13 located on the second support frame 102. Furthermore, the photovoltaic string welding equipment includes a mounting frame 103, which is located between the first support frame 101 and the second support frame 102. The cutting platform 12 is mounted on the mounting frame 103, which is provided with rollers 13, and the conveyor belt 11 is wound around the rollers 13 on the mounting frame 103.

[0038] In some embodiments, the cutting platform 12 is capable of moving in a translational manner along the direction in which the conveyor belt 11 transports the battery string. In this way, when the conveyor belt 11 transports the battery string to the top of the cutting platform 12, the cutting platform 12 can be moved in a translational manner to the position where cutting is required, so as to accurately cut the welding ribbon. It should be noted here that, since the battery string will move relative to the cutting knife along with the conveyor belt 11 when the conveyor belt 11 transports the battery string, even if the position of the cutting platform 12 is fixed, the conveyor belt 11 can be used to move the battery string to the position where the welding ribbon needs to be cut opposite to the cutting knife. In other words, in order to achieve the purpose of aligning the cutting knife with the position where the welding ribbon needs to be cut, it is not necessary to require the cutting platform 12 to be capable of moving in a translational manner along the direction in which the conveyor belt 11 transports the battery string.

[0039] In the embodiment where the cutting platform 12 can move in translation along the direction of the battery string being transported by the conveyor belt 11, the cutting platform 12 can move in translation driven by the mounting frame 103. Figure 2 and Figure 3 As shown, the photovoltaic string soldering equipment includes a translational drive mechanism 40 connected to the mounting frame 103. The translational drive mechanism 40 drives the mounting frame 103 to translate along the direction of the battery string being transported by the conveyor belt 11. When the mounting frame 103 is positioned between the first support frame 101 and the second support frame 102, the translational drive mechanism 40 drives the mounting frame 103 to translate between the first support frame 101 and the second support frame 102. This also causes the cutting platform 12 mounted on the mounting frame 103 to translate along with the mounting frame 103, allowing the cutting blade to be precisely positioned for cutting.

[0040] The translation drive mechanism 40 includes a screw rod 41 and a drive motor 42. The screw rod 41 is connected to the mounting frame 103, and the drive motor 42 can drive the screw rod 41 to rotate, so that the screw rod 41 drives the mounting frame 103 to translate.

[0041] It should be noted that the photovoltaic string welding device includes a base 104, and the first support frame 101 and the second support frame 102 can be mounted on the base 104. In an embodiment where the mounting frame 103 is capable of translational movement, the mounting frame 103 can be slidably mounted on the base 104 to facilitate improving the stability of the mounting frame 103 in translational movement driven by the translation drive mechanism 40.

[0042] Combine Figure 1 and Figure 4 As shown, in some embodiments, the string-splitting mechanism 10 includes a mounting plate 14 and a lifting assembly 15. The mounting plate 14 is positioned above the cutting platform 12, and the cutting blade is mounted on the mounting plate 14. The mounting plate 14 is connected to the lifting assembly 15, which can drive the mounting plate 14 to move up and down relative to the cutting platform 12.

[0043] In embodiments where the photovoltaic string soldering equipment includes a mounting frame 103, the lifting assembly 15 can be mounted on the mounting frame 103. Since the cutting platform 12 is mounted on the mounting frame 103, when the lifting assembly 15 drives the mounting plate 14 to move upward and downward relative to the mounting frame 103, the mounting plate 14 also moves upward and downward relative to the cutting platform 12. In this way, the mounting plate 14 drives the cutting blade toward or away from the cutting platform 12. Consequently, when the cell string moves to a point where the solder ribbon needs to be cut between the cutting blade and the cutting platform 12, the cutting blade moves downward relative to the cutting platform 12 to cut the solder ribbon.

[0044] The lifting assembly 15 includes a lifting cylinder 151 and a lifting base 152. The lifting cylinder 151 is mounted on the mounting frame 103, while the lifting base 152 is connected to the lifting cylinder 151. The mounting plate 14 is also connected to the lifting base 152. As the lifting cylinder 151 drives the lifting base 152 upward and downward, the mounting plate 14 also moves upward and downward relative to the mounting frame 103. The lifting base 152 and the mounting frame 103 can be connected by a sliding mechanism to enhance the stability of the lifting base 152 during its relative movement.

[0045] In some embodiments, both ends of the mounting plate 14 are connected to a lifting cylinder 151 through a lifting seat 152 , so that the mounting plate 14 can be smoothly raised and lowered relative to the cutting platform 12 under the drive of the lifting cylinders 151 at both ends.

[0046] Combine Figure 3 and Figure 4 As shown, the ribbon cleaning mechanism 20 includes a first cylinder 21, a second cylinder 22, a first brush 23, a second brush 24, and a translation assembly 25. The first brush 23 and the second brush 24 are connected to the first cylinder 21 and the second cylinder 22, respectively. The first cylinder 21 is used to drive the first brush 23 to move up and down, so that the first brush 23 can contact or leave the cutting platform 12. The second cylinder 22 is used to drive the second brush 24 to move up and down, so that the second brush 24 can contact or leave the cutting platform 12. The translation assembly 25 is connected to the mounting plate 14 and is used to drive the first cylinder 21 and the second cylinder 22 to translate in a direction parallel to the cutting blade.

[0047] In this embodiment, when the first brush 23 moves to contact the cutting platform 12, the translational movement of the translation assembly 25 will cause the first brush 23 to clean the cutting platform 12. Correspondingly, when the second brush 24 moves to contact the cutting platform 12, the translational movement of the translation assembly 25 will cause the second brush 24 to clean the cutting platform 12.

[0048] It should be noted that the first cylinder 21 and the first brush 23 are located on one side of the cutting blade, while the second cylinder 22 and the second brush 24 are located on the other side of the cutting blade. In this way, the first brush 23 and the second brush 24 can respectively clean both sides of the cutting blade on the cutting platform 12 (i.e., the discharge side 122 and the inlet side 121).

[0049] Combine Figure 5 As shown, the translation assembly 25 may include a moving base 251 and a magnetic rodless cylinder 252. The moving base 251 is connected to the magnetic rodless cylinder 252, and the magnetic rodless cylinder 252 can drive the moving base 251 to translate in a direction parallel to the cutting blade.

[0050] The translation assembly 25 can also be a motor-screw structure or a linear motor structure capable of driving a load to move linearly back and forth. The structure of the translation assembly 25 is not limited here, as long as it can drive the first cylinder 21 and the second cylinder 22 to translate in a direction parallel to the cutting blade.

[0051] Combine Figure 3 and Figure 4 As shown, the welding ribbon cleaning mechanism 20 includes a connecting plate 26, and the first cylinder 21 and the second cylinder 22 are mounted on the connecting plate 26. The connecting plate 26 is connected to the translation assembly 25, and the connecting plate 26 can be driven by the translation assembly 25 to translate in a direction parallel to the cutting blade.

[0052] Combine Figure 5 and Figure 6 As shown, in an embodiment where the translation assembly 25 includes a movable base 251 and a magnetic rodless cylinder 252, the connecting plate 26 is connected to the movable base 251. Thus, when the movable base 251 translates, the first cylinder 21 and the second cylinder 22 on the connecting plate 26 also move together, causing the first brush 23 and the second brush 24 to translate on either side of the cutting blade. Therefore, when the first brush 23 and the second brush 24 move into contact with the cutting platform 12, the first brush 23 and the second brush 24 can clean the solder strips on the discharge side 122 and the inlet side 121 of the cutting platform 12 by translating in a direction parallel to the cutting blade, causing the solder strips to fall into the recovery assembly 30.

[0053] In some embodiments, the first brush 23 and the second brush 24 are connected to the first cylinder 21 and the second cylinder 22, respectively, via a connector 27. The connector 27 may be Z-shaped, which improves stability. It should be noted that the first brush 23 and the second brush 24 are detachably connected to the connector 27, making them easy to remove and replace.

[0054] Combine Figure 7As shown, the recycling assembly 30 includes a guide 31 and a collection box 32. The guide 31 can guide the solder ribbons cleaned from the cutting platform 12 to slide into the collection box 32, so that the solder ribbons can be collected in the collection box 32, thereby preventing the solder ribbons from falling elsewhere inside the photovoltaic string welding equipment and easily causing defects such as hidden cracks or short circuits in the battery strings.

[0055] It should be noted that guides 31 and collection boxes 32 are provided at both ends of the cutting platform 12, corresponding to the feed side 121 and the discharge side 122. When the solder strip cleaning mechanism 20 cleans the solder strip on the cutting platform 12, the first brush 23 and the second brush 24 move in a direction parallel to the cutting blade to clean the solder strip from both ends of the cutting platform 12. Because the feed side 121 and the discharge side 122 are both provided with guides 31 and collection boxes 32, the solder strips on the discharge side 122 and the feed side 121 will fall onto the guides 31 located at both ends of the cutting platform 12 and, guided by the guides 31, slide into the collection box 32.

[0056] The guide member 31 is provided with a guide groove 311. When the solder strip cleaning mechanism 20 cleans the solder strip from the cutting platform 12, the solder strip falls from the end of the cutting platform 12 to the guide groove 311, and then slides along the guide groove into the collection box 32.

[0057] It should be noted that, since the cutting knife in the string dividing mechanism 10 can move up and down relative to the cutting platform 12, the cutting knife can cut objects located between the cutting knife and the cutting platform 12. When the welding ribbon connected between the battery strings moves between the cutting knife and the cutting platform 12, the cutting knife cuts the welding ribbon, thereby realizing the string dividing and cutting of the battery strings. When the welding ribbon at the head of the first battery string is located between the cutting knife and the cutting platform 12, the cutting knife cuts the welding ribbon, thereby realizing the cutting of the excess welding ribbon at the head of the first battery string. Correspondingly, when the welding ribbon at the tail of the tail battery string is located between the cutting knife and the cutting platform 12, the cutting knife cuts the welding ribbon, thereby realizing the cutting of the excess welding ribbon at the tail of the tail battery string.

[0058] The working principle of a photovoltaic string welding device in one embodiment is described below by taking it as an example.

[0059] When the first battery string in the battery string is transferred to the cutting platform 12 through the conveyor belt 11, the drive motor 42 starts working to drive the screw rod 41 to rotate, so that the screw rod 41 drives the cutting platform 12 to move. In this way, the mounting plate 14 moves with the cutting knife along with the cutting platform 12. When the cutting platform 12 moves to the set cutting position, the cutting knife is located above the head position of the first battery string, corresponding to the position where the welding strip needs to be cut. At this time, the mounting plate 14 moves downward relative to the cutting platform 12 under the drive of the lifting cylinders 151 at both ends, and the cutting knife moves downward with the mounting plate 14, and cuts the welding strip at the position of the head of the first battery string on the corresponding cutting platform 12, thereby achieving the purpose of cutting off the excess welding strip at the head of the first battery string.

[0060] For ease of understanding, the cutting platform 12 is divided into an inlet side 121 and an outlet side 122 along the transmission direction of the conveyor belt 11 using the cutting knife as the dividing line. That is, under the transmission of the conveyor belt 11, the battery string will enter between the cutting knife and the cutting platform 12 from the inlet side 121, and then enter the outlet side 122. Therefore, after the excess solder ribbon at the head of the first battery string is cut by the cutting knife, the cut excess solder ribbon will fall on the outlet side 122 of the cutting platform 12. Based on this, when the first cylinder 21 located on the outlet side 122 of the solder ribbon cleaning mechanism 20 drives the first brush 23 to contact the cutting platform 12, the connecting plate 26 is driven to move by the translation component 25. The first cylinder 21 and the first brush 23 will move together with the connecting plate 26, so that the first brush 23 cleans the solder ribbon that falls on the outlet side 122 of the cutting platform 12. Because recovery assemblies 30 are provided at both ends of the cutting platform 12 in the direction of movement of the corresponding first brush 23, the solder ribbon cleaned by the first brush 23 will fall into the recovery assembly 30 for recycling. For example, in an embodiment where the recovery assembly 30 includes a guide member 31 and a collection box 32, the first brush 23 sweeps the solder ribbon that has fallen onto the cutting platform 12 into the guide chute 311 of the guide member 31, causing the solder ribbon to slide through the guide chute 311 and into the collection box 32.

[0061] After completing the recovery of the excess solder strips at the head of the first battery string, the lifting cylinder 151 drives the mounting plate 14 to lift up, thereby allowing the cutting blade to leave the cutting platform 12 .

[0062] With reference to the cleaning and recycling of the excess solder strips at the head of the first string of cells, the photovoltaic string welding equipment of the present application can also cut, clean and recycle the excess solder strips at the tail of the tail string. For example, in the same way, when the tail string of the cell string is transferred to the cutting platform 12 via the conveyor belt 11, the drive motor 42 starts working to drive the screw 41 to rotate, so that the screw 41 drives the cutting platform 12 to move. In this way, the mounting plate 14 moves with the cutting knife along with the cutting platform 12. When the cutting platform 12 moves to the set cutting position, the cutting knife is located above the tail position of the tail string of cells, corresponding to the position where the solder strip needs to be cut. At this time, the mounting plate 14 moves downward relative to the cutting platform 12 under the drive of the lifting cylinders 151 at both ends, and the cutting knife moves downward with the mounting plate 14 and cuts the solder strip at the tail position of the tail string of cells on the corresponding cutting platform 12, thereby achieving the purpose of cutting off the excess solder strip at the tail of the tail string of cells.

[0063] It is understandable that after the excess solder ribbon at the tail end of the tail battery string is cut by the cutting knife, the cut excess solder ribbon will fall onto the inlet side 121 of the cutting platform 12. Based on this, when the second cylinder 22 located on the inlet side 121 of the solder ribbon cleaning mechanism 20 drives the second brush 24 to contact the cutting platform 12, the translation assembly 25 drives the connecting plate 26 to move, and the second cylinder 22 and the second brush 24 will move with the connecting plate 26, so that the second brush 24 cleans the solder ribbon that has fallen onto the inlet side 121 of the cutting platform 12. Because the recycling assembly 30 is provided at both ends of the cutting platform 12 corresponding to the movement direction of the second brush 24, the solder ribbon cleaned by the second brush 24 will fall into the recycling assembly 30, thereby realizing the recycling of the solder ribbon. For example, in an embodiment in which the recycling component 30 includes a guide member 31 and a collection box 32, the second brush 24 cleans the solder strip that falls on the cutting platform 12 to the guide groove 311 of the guide member 31, thereby allowing the solder strip to slide into the collection box 32 through the guide groove 311.

[0064] After completing the recovery of the excess solder strip at the tail end of the battery string, the lifting cylinder 151 drives the mounting plate 14 to lift up, thereby allowing the cutting knife to leave the cutting platform 12 .

[0065] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above embodiments merely illustrate several implementation methods of the present application, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the inventive concept of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A photovoltaic string welding device, characterized in that: The photovoltaic string welding equipment comprises a string separation mechanism (10), a solder strip cleaning mechanism (20) and a recycling assembly (30). The string separation mechanism (10) comprises a conveyor belt (11), a cutting platform (12) and a cutting knife. The conveyor belt (11) is used to transport the battery string so that the battery string moves through the cutting platform (12). The cutting knife is arranged above the cutting platform (12). The cutting knife can move up and down relative to the cutting platform (12) to cut the solder strip on the battery string at a position corresponding to the cutting platform (12). The solder strip cleaning mechanism (20) is used to clean the solder strip that has been cut and dropped onto the cutting platform (12) to the recycling assembly (30).

2. The photovoltaic string welding equipment according to claim 1, characterized in that: The string dividing mechanism (10) includes a mounting plate (14) and a lifting assembly (15), wherein the mounting plate (14) is located above the cutting platform (12), the cutting knife is mounted on the mounting plate (14), the mounting plate (14) is connected to the lifting assembly (15), and the lifting assembly (15) can drive the mounting plate (14) to move up and down relative to the cutting platform (12).

3. The photovoltaic string welding equipment according to claim 2, characterized in that: The welding strip cleaning mechanism (20) comprises a first cylinder (21), a second cylinder (22), a first brush (23), a second brush (24) and a translation assembly (25), wherein the first brush (23) and the second brush (24) are connected to the first cylinder (21) and the second cylinder (22) respectively, and the first cylinder (21) can drive the first brush (23) to contact or leave the cutting platform (12), the first cylinder (21) and the first brush (23) are located on one side of the cutting knife, and the second cylinder (22) and the second brush (24) are located on the other side of the cutting knife, and the translation assembly (25) is connected to the mounting plate (14), and the translation assembly (25) is used to drive the first cylinder (21) and the second cylinder (22) to translate in a direction parallel to the cutting knife.

4. The photovoltaic string welding equipment according to claim 3, characterized in that: The welding ribbon cleaning mechanism (20) includes a connecting plate (26), the first cylinder (21) and the second cylinder (22) are mounted on the connecting plate (26), the connecting plate (26) is connected to the translation assembly (25), and the connecting plate (26) can be driven by the translation assembly (25) to move in a translational direction parallel to the cutting knife.

5. The photovoltaic string welding equipment according to claim 1, characterized in that: The recycling assembly (30) comprises a guide member (31) and a collection box (32), wherein the guide member (31) can guide the welding ribbon swept from the cutting platform (12) to slide into the collection box (32).

6. The photovoltaic string welding equipment according to claim 1, characterized in that: Part of the structure of the conveyor belt (11) is located below the cutting platform (12), and the conveyor belt (11) forms a first receiving surface (111) and a second receiving surface (112) on the feeding side (121) and the discharging side (122) of the cutting platform (12), respectively. When the conveyor belt (11) transports the battery string, the battery string can move from the first receiving surface (111) to the cutting platform (12), and can move from the cutting platform (12) to the second receiving surface (112).

7. The photovoltaic string welding equipment according to claim 6, characterized in that: The photovoltaic string welding equipment comprises a first support frame (101) and a second support frame (102) arranged at intervals, the first support frame (101) and the second support frame (102) are both provided with rollers (13), and the conveyor belt (11) is wound around the rollers (13) on the first support frame (101) and the rollers (13) on the second support frame (102).

8. The photovoltaic string welding equipment according to claim 7, characterized in that: The photovoltaic string welding equipment comprises a mounting frame (103), the mounting frame (103) is located between the first support frame (101) and the second support frame (102), the cutting platform (12) is mounted on the mounting frame (103), the mounting frame (103) is provided with the roller (13), and the conveyor belt (11) is wound around the roller (13) on the mounting frame (103).

9. The photovoltaic string welding equipment according to claim 8, characterized in that: The photovoltaic string welding device comprises a translation drive mechanism (40), the translation drive mechanism (40) is connected to the mounting frame (103), and the translation drive mechanism (40) can drive the mounting frame (103) to move translationally along the direction in which the conveyor belt (11) transmits the battery string.

10. The photovoltaic string welding equipment according to claim 9, characterized in that: The translation drive mechanism (40) includes a screw rod (41) and a drive motor (42), wherein the screw rod (41) is connected to the mounting frame (103), and the drive motor (42) can drive the screw rod (41) to rotate, so that the screw rod (41) drives the mounting frame (103) to move in translation.

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