Battery piece welding mechanism for solar panel welding machine

Abstract

The utility model relates to a battery piece welding mechanism for a solar panel welding machine, which is provided with a rack, a driving motor and a conveying belt, and the side edge of the rack is provided with a welding assembly; a material preparation station, a preheating station, a welding station and a heat dissipation station are sequentially arranged on the machine frame, a material preparation plate is arranged on the material preparation station, a preheating plate is arranged on the preheating station, a heating plate is arranged on the welding station, a heat dissipation plate is arranged on the heat dissipation station, and the material preparation plate, the preheating plate, the heating plate and the heat dissipation plate are all located between the machine frame and the conveying belt. The heating plate comprises a first flexible heat conduction plate, a heating plate layer and a heat dissipation bottom plate, a plurality of heat dissipation fin plates are arranged at the bottom of the heat dissipation bottom plate, a plurality of heat dissipation fans are arranged at the bottom of the heat dissipation bottom plate, and the welding assembly comprises a welding support, a first lifting air cylinder, a lifting support, a welding lampshade, a heat dissipation fan and a welding lamp. The first lifting air cylinder drives the lifting support and the welding lamp in the welding lampshade to get close to the battery pieces and conduct series welding on the battery pieces. The device is ingenious in structure, convenient and practical.

Description

Technical Field

[0001] This utility model relates to the field of solar panel welding machines, and in particular to a cell welding mechanism for solar panel welding machines. Background Technology

[0002] Driven by the enormous potential of the international photovoltaic market, solar cell manufacturers in various countries are investing heavily to expand production and secure a place in the market. Welding of solar cells plays a crucial role in solar cell manufacturing. Therefore, developing equipment for welding solar cells has become a research hotspot in automation and energy technology, with achieving high welding quality and low breakage rates becoming the primary goal for quality assurance.

[0003] Existing welding machines typically use metal heating plates to heat the solar cells when welding them, and then use welding lamps for welding. However, the characteristics of metal heating plates are that they heat up and cool down quickly. During the welding process, the solar cells are prone to over-welding or incomplete welding due to the rapid heating and cooling of the metal heating plates. This greatly affects the overall welding quality of the solar cells and the overall yield of the photovoltaic panel, which is very inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a solar cell welding mechanism for a solar panel welding machine. The mechanism has an ingenious structure. By setting a high-temperature resistant first flexible heat-conducting plate, the heat of the heating plate layer is slowly absorbed and heated slowly. After the heating plate layer stops heating, the heat is slowly dissipated through the first flexible heat-conducting plate. This effectively avoids incomplete welding or over-welding during the solar cell welding process, making it highly efficient and convenient.

[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a frame, a drive motor fixed on the frame, and a conveyor belt that operates on the frame under the drive of the drive motor and can transport solar panels. The side of the frame is provided with a welding assembly for welding individual solar cells. The frame is sequentially provided with a material preparation station, a preheating station, a welding station, and a heat dissipation station. The material preparation station has a material preparation plate, the preheating station has a preheating plate for preheating the solar cells, the welding station has a heating plate for lifting and lowering the solar cells for heating, and the heat dissipation station has a heat dissipation plate. The material preparation plate, preheating plate, heating plate, and heat dissipation plate are sequentially arranged on the frame and located between the frame and the conveyor belt. The heating plate, from top to bottom, includes a high-temperature resistant first flexible heat-conducting plate, a heating plate layer, and a heat dissipation base plate for heat dissipation of the heating plate layer. The bottom of the heat dissipation base plate has multiple heat dissipation fins integrally formed with the heat dissipation base plate. The bottom of the hot plate is equipped with multiple cooling fans, each mounted on the frame. The welding assembly is located at the welding station, directly above the heating plate. The welding assembly includes a welding bracket, a first lifting cylinder mounted on the welding bracket, a lifting bracket mounted on the welding bracket that is lifted and lowered under the drive of the first lifting cylinder, a welding lamp cover mounted on the lifting bracket, a cooling fan mounted on the welding lamp cover, and a welding lamp inside the welding lamp cover. Driven by the drive motor, each battery cell on the conveyor belt is sequentially transferred from the material preparation plate at the material preparation station to the preheating plate at the preheating station for preheating, and then transferred to the heating plate at the welding station for heating. At the same time, the first lifting cylinder drives the lifting bracket, the welding lamp cover on the lifting bracket, and the welding lamp inside the welding lamp cover to approach the battery cells and perform series welding on each battery cell. Then, the conveyor belt transfers the welded battery cells to the heat dissipation plate at the heat dissipation station for heat dissipation.

[0006] Furthermore, the aforementioned material preparation plate, preheating plate, heating plate, and heat dissipation plate are all arrayed with multiple vacuum suction holes. The bottom of the material preparation plate, preheating plate, heating plate, and heat dissipation plate is equipped with a suction pipe that can be connected to an external suction pump. The lower ends of each vacuum suction hole on the material preparation plate, preheating plate, heating plate, and heat dissipation plate converge on the corresponding suction pipe. The conveyor belt is provided with a through hole group, which has multiple connecting through holes. After the through hole group on the conveyor belt is transferred to the material preparation plate, preheating plate, heating plate, or heat dissipation plate, each connecting through hole on the through hole group corresponds to and is connected to each vacuum suction hole.

[0007] Furthermore, both the material preparation plate and the preheating plate are provided with multiple heat conduction grooves, and the heat dissipation plate is provided with multiple heat dissipation grooves.

[0008] Furthermore, the aforementioned frame is equipped with a first roller, a second roller, a third roller, and a fourth roller arranged in parallel. The first, second, and third rollers are all rotatably connected to the frame. The first and second rollers are located on the same horizontal plane, the third roller is positioned below the first roller, and the fourth roller is positioned below the second roller, also on the same horizontal plane. The conveyor belt is fitted onto the first, second, third, and fourth rollers. The output end of the drive motor is equipped with a reducer, the output end of which is connected to one end of the first roller. The frame has symmetrically arranged sides. The slide rails are arranged parallel to the conveyor belt's conveying direction. Each side slide rail has a sliding block, and each side block has an adjusting slide plate. The two ends of the fourth roller are rotatably connected to the opposing adjusting slide plates. An adjusting cylinder is fixedly installed at the bottom of the frame. Each adjusting slide plate is adjusted by an adjusting push rod. The extending direction of the adjusting push rod is perpendicular to the extending direction of the side slide rail. The telescopic end of the adjusting cylinder is fixed to the adjusting push rod. The fourth roller is pressed against the conveyor belt by the adjusting cylinder driving the adjusting push rod and the sliding cooperation of the side slide rails and side blocks.

[0009] Furthermore, the bottom of the aforementioned welding bracket is provided with an adjustment assembly for adjusting the horizontal position of the welding lamp. The adjustment assembly includes an adjustment base plate, adjustment slide rails arranged parallel to the adjustment base plate and parallel to the conveying direction of the conveyor belt, adjustment sliders slidably connected to each adjustment slide rail, an adjustment motor fixed to the adjustment base plate, an adjustment screw fixed to the output end of the adjustment motor, a connecting block fixed to the bottom of the welding bracket, and a screw hole provided on the connecting block that can be threadedly engaged with the adjustment screw. Each adjustment slider is fixedly installed at the bottom of the welding bracket. The axis of the adjustment screw is arranged parallel to the extension direction of the adjustment slide rail. The end of the adjustment screw away from the adjustment motor is rotatably connected to the adjustment base plate. The welding bracket slides horizontally on the adjustment base plate through the cooperation of the adjustment sliders and adjustment slide rails, and the threaded cooperation of the adjustment screw with the screw hole on the connecting block.

[0010] Furthermore, a second lifting cylinder is fixedly installed on the welding bracket, and a limiting bracket is fixedly installed on the telescopic end of the second lifting cylinder. The limiting bracket is slidably connected to the welding bracket. An installation bracket is fixedly installed on the limiting bracket. The installation bracket is located between the welding lamp cover and the conveyor belt. A high-temperature resistant second flexible heat-conducting plate is installed on the installation bracket. The second flexible heat-conducting plate is arranged parallel to the first flexible heat-conducting plate.

[0011] Furthermore, the aforementioned second flexible heat-conducting plate is provided with multiple parallel light-transmitting grooves.

[0012] This utility model has the following positive effects: (1) This utility model sets up a material preparation plate at the material preparation station to receive the battery cells transferred from the previous station, then preheats the battery cells by a preheating plate, and then transfers them to the welding assembly by a conveyor belt. The welding lamp drives the lifting bracket through the first lifting cylinder to perform series welding on the battery cells. During the welding process, the first flexible heat-conducting plate is set above the heating plate layer. The first flexible heat-conducting plate is made of a high-temperature resistant material. During the heating process of the heating plate, the first flexible heat-conducting plate slowly absorbs heat and heats up, effectively avoiding the problem of excessive temperature in the prior art. This high-efficiency design prevents over-welding during the stringing process of individual solar cells. After the heating plate stops heating, the first flexible heat-conducting plate slowly dissipates heat. When the next batch of solar cells is stringed, the first flexible heat-conducting plate still carries residual heat, which is used as a basis for further heating. This effectively avoids the problem of incomplete welding during the stringing process of solar cells in existing technologies. It effectively solves the problem of over-welding or incomplete welding of solar cells during the welding process in existing technologies, greatly improving the quality and efficiency of solar cell stringing. It also greatly improves the yield and quality of solar panels. The structure is ingenious, convenient and practical.

[0013] (2) This utility model sets vacuum suction holes on the material preparation plate, preheating plate, heating plate and heat dissipation plate. Each vacuum suction hole is connected to the air pump through the air extraction pipe, thereby ensuring the stability of the battery cell during welding, preheating or material preparation, and further ensuring the efficiency and quality of the battery cell during the welding process. It is efficient and convenient.

[0014] (3) By setting multiple heat conduction grooves on the material preparation plate and the preheating plate, this utility model can accelerate the heat conduction efficiency of the preheating plate to the battery cell on the one hand, and also achieve uniformity of battery cell preheating on the other hand. By setting multiple heat dissipation grooves on the heat dissipation plate, the heat dissipation efficiency of the battery cell after welding is greatly improved, which is practical and efficient.

[0015] (4) This utility model adjusts the tension of the conveyor belt by setting an adjusting cylinder on the frame, and the fourth roller presses against the conveyor belt by driving the adjusting push rod through the adjusting cylinder and sliding cooperation between the side slide rail and the side slider. This further ensures the conveying efficiency of each battery cell on the conveyor belt, making it practical and convenient.

[0016] (5) By setting an adjustment component at the bottom of the welding bracket, the welding bracket slides horizontally on the adjustment base plate through the cooperation of the adjustment slider and the adjustment rail, as well as the threaded cooperation of the adjustment screw and the screw hole on the connecting block, thereby adjusting the horizontal position of the welding lamp cover and the welding lamp inside the welding lamp cover, further ensuring the accurate alignment of the welding position of each battery cell during the string welding process, ensuring the accuracy of the battery cell string welding, and making it efficient and convenient.

[0017] (6) This utility model sets a second lifting cylinder on the welding bracket. The second lifting cylinder drives the second flexible heat-conducting plate to press the battery cell. Similarly, during the pressing process, through the high temperature resistance and slow heat conduction of the second flexible heat-conducting plate, as well as the drive of the second lifting cylinder, the second flexible heat-conducting plate can press the battery cell, which further ensures the stability of the battery cell during the welding process. At the same time, through the slow heat conduction of the second flexible heat-conducting plate, it also further avoids the occurrence of over-welding or incomplete welding of the battery cell during the welding process, which is convenient and practical.

[0018] (7) This utility model provides multiple parallel light-transmitting grooves on the second flexible heat-conducting plate. Each light-transmitting groove can be set according to the position of the battery cell string welding, which further ensures the stability of each battery cell during the string welding process, as well as the precision and efficiency of the battery cell string welding process. It also further ensures the quality of the solar panel formed after the battery cells are string welded. The structure is ingenious, stable and practical. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0020] Figure 1 This is a schematic diagram of the overall structure of the battery cell welding mechanism for the solar panel welding machine in this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the frame and the material preparation plate, preheating plate, heating plate and heat dissipation plate in this utility model;

[0022] Figure 3 This is an exploded view of the overall structure of the heating plate in this utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the preheating plate in this utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the heat sink in this utility model;

[0025] Figure 6 This is a schematic diagram of the connection structure between the adjusting cylinder on the frame and the fourth roller in this utility model;

[0026] Figure 7 This is a schematic diagram of the overall structure of the welding assembly in this utility model;

[0027] The attached figures are labeled as follows:

[0028] Frame 1, Drive Motor 11, First Roller 12, Second Roller 13, Third Roller 14, Fourth Roller 15, Adjusting Cylinder 16, Adjusting Push Rod 17, Section Slide Plate 18, Side Slider 181, Side Slide Rail 19, Conveyor Belt 2, Connecting Through Hole 21, Welding Assembly 3, Welding Support 31, Limiting Slide Groove 311, First Lifting Cylinder 32, Lifting Support 33, Welding Lamp Cover 34, Cooling Fan 35, Adjusting Assembly 36, Adjusting Base Plate 36 1. Adjustable slide rail 362. Adjustable slider 363. Adjustable motor 364. Adjustable lead screw 365. Connecting block 366. Second lifting cylinder 37. Limiting bracket 38. Limiting plate 381. Mounting bracket 39. Second flexible heat-conducting plate 391. Material preparation plate 4. Preheating plate 5. Heating plate 6. First flexible heat-conducting plate 61. Heating plate layer 62. Heat dissipation base plate 63. Heat dissipation fins 64. Heat dissipation fan 65. Heat dissipation plate 7. Heat dissipation groove 71. Heat conduction groove 8. Detailed Implementation

[0029] See Figures 1 to 7This utility model includes a frame 1, a drive motor 11 fixed on the frame 1, and a conveyor belt 2 that operates on the frame 1 under the drive of the drive motor 11 and can transport solar panels. The side of the frame 1 is provided with a welding assembly 3 for welding individual solar cells. The frame 1 is sequentially provided with a material preparation station, a preheating station, a welding station, and a heat dissipation station. The material preparation station is provided with a material preparation plate 4, the preheating station is provided with a preheating plate 5 for preheating the solar cells, and the welding station is provided with a heat dissipation station for preheating the solar cells. The heating plate 6 is raised and lowered for heating. A heat dissipation plate 7 is provided at the heat dissipation station. The material preparation plate 4, preheating plate 5, heating plate 6, and heat dissipation plate 7 are sequentially arranged on the frame 1, all located between the frame 1 and the conveyor belt 2. The heating plate 6, from top to bottom, includes a high-temperature resistant first flexible heat-conducting plate 61, a heating plate layer 62, and a heat dissipation base plate 63 for heat dissipation of the heating plate layer 62. The bottom of the heat dissipation base plate 63 has multiple heat dissipation fins 64 integrally formed with it. The bottom of the heat dissipation base plate 63 also has multiple heat dissipation fins 64. Hot air fans 65 are installed on the frame 1. The welding assembly 3 is installed at the welding station and directly above the heating plate 6. The welding assembly 3 includes a welding bracket 31, a first lifting cylinder 32 installed on the welding bracket 31, a lifting bracket 33 installed on the welding bracket 31 under the drive of the first lifting cylinder 32, a welding lamp cover 34 installed on the lifting bracket 33, a cooling fan 35 installed on the welding lamp cover 34, and a welding lamp installed inside the welding lamp cover 34. Each battery cell on the conveyor belt 2 is transferred sequentially from the material preparation plate 4 at the material preparation station to the preheating plate 5 at the preheating station for preheating under the drive of the drive motor 11, and then transferred to the heating plate 6 at the welding station for heating. At the same time, the first lifting cylinder 32 drives the lifting bracket 33, the welding lamp cover 34 on the lifting bracket 33, and the welding lamp inside the welding lamp cover 34 to approach the battery cell and perform series welding on each battery cell. Then the conveyor belt 2 transfers the welded battery cell to the heat dissipation plate 7 at the heat dissipation station for heat dissipation.

[0030] The welding bracket 31 has two parallel vertical slide rails on both sides. The lifting bracket 33 has vertical sliders that are adapted to each vertical slide rail. The lifting bracket 33 drives the welding lamp cover 34 and the welding lamp inside the welding lamp cover 34 to rise and fall through the drive of the first lifting cylinder 32 and the cooperation of the vertical slide rails and vertical sliders.

[0031] The material preparation plate 4, preheating plate 5, heating plate 6, and heat dissipation plate 7 are each arrayed with multiple vacuum suction holes. The bottom of each material preparation plate 4, preheating plate 5, heating plate 6, and heat dissipation plate 7 is equipped with a suction pipe that can be connected to an external suction pump. The lower ends of each vacuum suction hole on the material preparation plate 4, preheating plate 5, heating plate 6, and heat dissipation plate 7 converge on the corresponding suction pipe. The conveyor belt 2 is provided with a through hole group, which has multiple connecting through holes 21. After the through hole group on the conveyor belt 2 is transferred to the material preparation plate 4, preheating plate 5, heating plate 6, or heat dissipation plate 7, each connecting through hole 21 on the through hole group corresponds to and is connected to each vacuum suction hole.

[0032] Both the material preparation plate 4 and the preheating plate 5 are provided with multiple heat conduction grooves 8, and the heat dissipation plate 7 is provided with multiple heat dissipation grooves 71.

[0033] The frame 1 is equipped with a first roller 12, a second roller 13, a third roller 14, and a fourth roller 15 arranged in parallel. The first roller 12, second roller 13, and third roller 14 are all rotatably connected to the frame 1. The first roller 12 and second roller 13 are located on the same horizontal plane, the third roller 14 is located below the first roller 12, and the fourth roller 15 is located below the second roller 13, with the third roller 14 and fourth roller 15 also on the same horizontal plane. The conveyor belt 2 is fitted onto the first roller 12, second roller 13, third roller 14, and fourth roller 15. The output end of the drive motor 11 is equipped with a reducer, the output end of which is connected to one end of the first roller 12. The frame 1 is equipped with symmetrically arranged side rails 1. 9. The extension direction of the side slide rail 19 is parallel to the conveying direction of the conveyor belt 2. Each side slide rail 19 is slidably provided with a side slider 181. Each side slider 181 is provided with an adjusting slide plate 18. The two ends of the fourth roller 15 are rotatably connected to the adjusting slide plates 18 that are arranged opposite to each other. An adjusting cylinder 16 is fixedly provided at the bottom of the frame 1. Each adjusting slide plate 18 is adjusted by an adjusting push rod 17. The extension direction of the adjusting push rod 17 is perpendicular to the extension direction of the side slide rail 19. The telescopic end of the adjusting cylinder 16 is fixed on the adjusting push rod 17. The fourth roller 15 is pressed against the conveyor belt 2 by the driving of the adjusting push rod 17 by the adjusting cylinder 16 and the sliding cooperation of the side slide rail 19 and the side slider 181.

[0034] The bottom of the welding bracket 31 is provided with an adjustment assembly 36 for adjusting the horizontal position of the welding lamp. The adjustment assembly 36 includes an adjustment base plate 361, adjustment slide rails 362 arranged parallel to the adjustment base plate 361 and parallel to the conveying direction of the conveyor belt 2, adjustment sliders 363 slidably connected to each adjustment slide rail 362, an adjustment motor 364 fixed to the adjustment base plate 361, an adjustment screw 365 fixed to the output end of the adjustment motor 364, a connecting block 366 fixed to the bottom of the welding bracket 31, and a component provided with... The connecting block 366 has a threaded hole that can be threaded into the adjusting screw 365. Each adjusting slider 363 is fixedly installed at the bottom of the welding bracket 31. The axis of the adjusting screw 365 is parallel to the extension direction of the adjusting slide rail 362. The end of the adjusting screw 365 away from the adjusting motor 364 is rotatably connected to the adjusting base plate 361. The welding bracket 31 slides horizontally on the adjusting base plate 361 through the cooperation of the adjusting slider 363 and the adjusting slide rail 362, as well as the threaded cooperation between the adjusting screw 365 and the threaded hole on the connecting block 366.

[0035] A second lifting cylinder 37 is fixedly mounted on the welding bracket 31. A limiting bracket 38 is fixedly mounted on the telescopic end of the second lifting cylinder 37. The limiting bracket 38 is slidably connected to the welding bracket 31. An installation bracket 39 is fixedly mounted on the limiting bracket 38. The installation bracket 39 is located between the welding lamp cover 34 and the conveyor belt 2. A high-temperature resistant second flexible heat-conducting plate 391 is mounted on the installation bracket 39. The second flexible heat-conducting plate 391 is arranged parallel to the first flexible heat-conducting plate 61.

[0036] The mounting bracket 39 is provided with a limiting plate 381 that horizontally penetrates the welding bracket 31. The welding bracket 31 is provided with two vertically arranged limiting grooves 311. The limiting plate 381 is slidably disposed in the limiting grooves 311 by the drive of the second lifting cylinder 37. The mounting bracket 39 is also provided with vertical sliders that are adapted to each vertical slide rail. The mounting bracket 39 and the second flexible heat-conducting plate 391 on the mounting bracket 39 are raised and lowered by the drive of the limiting plate 381 by the second lifting cylinder 37 and the cooperation of the vertical sliders and the vertical slide rails.

[0037] Both the first flexible heat-conducting plate 61 and the second flexible heat-conducting plate 391 are high-temperature resistant heat-conducting plates. The materials of the first flexible heat-conducting plate 61 and the second heat-conducting plate can be fluororubber, hydrogenated nitrile rubber, ethylene propylene rubber, or methyl phenyl silicone rubber. The first flexible heat-conducting plate 61 slowly absorbs heat from the heating plate 6 through its high-temperature resistance and slow thermal conductivity. Similarly, through its slow thermal conductivity, it can slowly absorb and dissipate heat, thus avoiding over-welding or cold welding during the welding process. Similarly, the second flexible heat-conducting plate 391, which is set below each welding lamp, also achieves slow heat absorption and slow heat dissipation of heat from the welding lamp through its high-temperature resistance and slow thermal conductivity, thereby avoiding cold welding or over-welding of each battery cell during the welding process.

[0038] The second flexible heat-conducting plate 391 is provided with a plurality of parallel light-transmitting grooves.

[0039] The working principle of this utility model is as follows: During use, the previous station transfers the battery cells that need to be serially welded to the preparation station. The battery cells at the preparation station are then transferred to the preheating plate 5 at the preheating station for preheating. Preheating raises the temperature of the battery cells, reducing the risk of incomplete soldering during the subsequent serial welding process. After preheating, each battery cell is transferred to the area below the welding station via the conveyor belt 2. Then, the heating plate layer 62 begins the heating process. During this process, the high-temperature resistant and slow-conducting first flexible heat-conducting plate 61 absorbs the heat released by the heating plate layer 62 and begins to heat the battery cells. Because of the slow thermal conductivity of the first flexible heat-conducting plate 61, the excessively fast heat conduction speed of the metal heat-conducting plate in the prior art is effectively avoided, thus preventing over-welding during the cell welding process. Simultaneously, due to the slow thermal conductivity of the first flexible heat-conducting plate 61, it absorbs and dissipates heat quickly. Therefore, when the cells at the welding station are completed and transferred to the heat dissipation station, and simultaneously when the cells at the next preheating station are transferred to the welding station for welding, the first flexible heat-conducting plate 61 can start heating from its residual temperature, greatly improving the heating speed of the cells. Furthermore, because the metal heating plate 6 dissipates heat quickly, it... The use of a slow-heating first flexible heat-conducting plate 61 can effectively prevent incomplete soldering of individual battery cells during the stringing process. Furthermore, when the welding lamps are stringing the battery cells, the welding bracket 31 slides horizontally on the adjusting base plate 361 through the cooperation of the adjusting slider 363 and the adjusting slide rail 362, and the threaded engagement of the adjusting screw 365 with the screw hole on the connecting block 366. This horizontally adjusts the position of the welding lamps, aligning them with the welding points of each battery cell. The height of the welding lamps is adjusted by driving the lifting bracket 33 through the first lifting cylinder 32, thereby controlling the temperature of the battery cell stringing and greatly improving the efficiency of the stringing process. The second flexible heat-conducting plate 391, driven by the second static cylinder, presses the battery cells together and further precisely aligns the welding positions of the battery cells through the light-transmitting groove, thus improving the accuracy of battery cell string welding. This effectively solves the problem in the prior art where battery cells are easily over-welded or under-welded due to the rapid heating and cooling of the metal heating plate 6, which greatly affects the overall welding quality of the battery cells. Through the high temperature resistance and slow thermal conductivity of the first flexible heat-conducting plate 61 and the second flexible heat-conducting plate 391, the welding efficiency and welding quality of the battery cells are greatly improved. The structure is ingenious, convenient and practical.

[0040] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A solar panel welding machine with a cell welding mechanism, comprising a frame, a drive motor fixed on the frame, and a conveyor belt that operates on the frame under the drive motor and can transport solar panels; wherein the side of the frame is provided with a welding assembly for welding individual cells; characterized in that: The frame is sequentially equipped with a material preparation station, a preheating station, a welding station, and a heat dissipation station. The material preparation station has a material preparation plate; the preheating station has a preheating plate for preheating the battery cells; the welding station has a heating plate for lifting and lowering the battery cells for heating; and the heat dissipation station has a heat dissipation plate. The material preparation plate, preheating plate, heating plate, and heat dissipation plate are sequentially arranged on the frame and located between the frame and the conveyor belt. The heating plate, from top to bottom, includes a high-temperature resistant first flexible heat-conducting plate, a heating plate layer, and a heat dissipation base plate for heat dissipation from the heating plate layer. The bottom of the heat dissipation base plate has multiple heat dissipation fins integrally formed with it, and multiple cooling fans are also provided at the bottom of the heat dissipation base plate. Each cooling fan is mounted on the frame. The welding assembly is located at the welding station. Directly above the heating plate, the welding assembly includes a welding bracket, a first lifting cylinder mounted on the welding bracket, a lifting bracket mounted on the welding bracket that is lifted and lowered under the drive of the first lifting cylinder, a welding lamp cover mounted on the lifting bracket, a cooling fan mounted on the welding lamp cover, and a welding lamp inside the welding lamp cover. Each battery cell on the conveyor belt is sequentially transferred from the material preparation plate at the material preparation station to the preheating plate at the preheating station for preheating under the drive of the drive motor, and then transferred to the heating plate at the welding station for heating. At the same time, the first lifting cylinder drives the lifting bracket, the welding lamp cover on the lifting bracket, and the welding lamp inside the welding lamp cover to approach the battery cells and perform series welding on each battery cell. Then the conveyor belt transfers the welded battery cells to the cooling plate at the cooling station for heat dissipation.

2. The cell welding mechanism for a solar panel welding machine according to claim 1, characterized in that: The material preparation plate, preheating plate, heating plate, and heat dissipation plate are each arrayed with multiple vacuum suction holes. The bottom of each material preparation plate, preheating plate, heating plate, and heat dissipation plate is equipped with a suction pipe that can be connected to an external suction pump. The lower ends of each vacuum suction hole on the material preparation plate, preheating plate, heating plate, and heat dissipation plate converge on the corresponding suction pipe. The conveyor belt is provided with a through hole group, which has multiple connecting through holes. After the through hole group on the conveyor belt is transferred to the material preparation plate, preheating plate, heating plate, or heat dissipation plate, each connecting through hole on the through hole group corresponds to and is connected to each vacuum suction hole.

3. The cell welding mechanism for a solar panel welding machine according to claim 1, characterized in that: Both the material preparation plate and the preheating plate are provided with multiple heat conduction grooves, and the heat dissipation plate is provided with multiple heat dissipation grooves.

4. The cell welding mechanism for a solar panel welding machine according to claim 1, characterized in that: The frame is equipped with a first roller, a second roller, a third roller, and a fourth roller arranged in parallel. The first, second, and third rollers are all rotatably connected to the frame. The first and second rollers are on the same horizontal plane, the third roller is located below the first roller, and the fourth roller is located below the second roller, also on the same horizontal plane. The conveyor belt is fitted onto the first, second, third, and fourth rollers. The output end of the drive motor is equipped with a reducer, the output end of which is connected to one end of the first roller. The frame is equipped with symmetrically arranged side rails. The side slide rails extend in a direction parallel to the conveyor belt's conveying direction. Each side slide rail has a sliding block, and each sliding block has an adjusting slide plate. The two ends of the fourth roller are rotatably connected to the opposing adjusting slide plates. An adjusting cylinder is fixedly installed at the bottom of the frame. Each adjusting slide plate is adjusted by an adjusting push rod. The extending direction of the adjusting push rod is perpendicular to the extending direction of the side slide rails. The telescopic end of the adjusting cylinder is fixed to the adjusting push rod. The fourth roller is pressed against the conveyor belt by the adjusting cylinder driving the adjusting push rod and by the sliding cooperation of the side slide rails and the sliding blocks.

5. The cell welding mechanism for a solar panel welding machine according to claim 1, characterized in that: The bottom of the welding bracket is equipped with an adjustment assembly for adjusting the horizontal position of the welding lamp. The adjustment assembly includes an adjustment base plate, adjustment slide rails arranged parallel to the adjustment base plate and parallel to the conveying direction of the conveyor belt, adjustment sliders slidably connected to each adjustment slide rail, an adjustment motor fixed to the adjustment base plate, an adjustment screw fixed to the output end of the adjustment motor, a connecting block fixed to the bottom of the welding bracket, and a screw hole provided on the connecting block that can be threaded with the adjustment screw. Each adjustment slider is fixedly installed at the bottom of the welding bracket. The axis of the adjustment screw is arranged parallel to the extension direction of the adjustment slide rail. The end of the adjustment screw away from the adjustment motor is rotatably connected to the adjustment base plate. The welding bracket slides horizontally on the adjustment base plate through the cooperation of the adjustment sliders and adjustment slide rails, and the threaded cooperation of the adjustment screw with the screw hole on the connecting block.

6. The cell welding mechanism for a solar panel welding machine according to claim 1, characterized in that: A second lifting cylinder is fixedly mounted on the welding bracket. A limiting bracket is fixedly mounted on the telescopic end of the second lifting cylinder. The limiting bracket is slidably connected to the welding bracket. An installation bracket is fixedly mounted on the limiting bracket. The installation bracket is located between the welding lamp cover and the conveyor belt. A high-temperature resistant second flexible heat-conducting plate is mounted on the installation bracket. The second flexible heat-conducting plate is arranged parallel to the first flexible heat-conducting plate.

7. The cell welding mechanism for a solar panel welding machine according to claim 6, characterized in that: The second flexible heat-conducting plate is provided with multiple parallel light-transmitting grooves.

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