A shingle welding device for battery cells

Abstract

The present invention discloses a shingled welding device for battery cells, which includes a transmission skeleton, a harmonic reduction power module, a driven wheel assembly, a belt, an adsorption heating module, an electrostatic generator, a wind knife, a belt wiping assembly and a supporting roller. The harmonic reduction power module and the driven wheel assembly on both sides of the transmission skeleton pass through the belt, and the transmission skeleton below the belt is provided with an adsorption heating module that is closely attached in sequence. The adsorption heating module is composed of a heating zone, a heat preservation zone and a heat dissipation zone according to heating and heat dissipation. An electrostatic generator is provided on the left side of the driven wheel assembly to align with the belt, and a wind knife, a belt wiping assembly and a supporting roller are provided below the transmission skeleton. The belt passes through the wind knife and the belt wiping assembly and is located on the supporting roller. Through the above-mentioned method, the present invention can ensure the smooth transportation and transportation accuracy of the battery cells, can weld the battery cells coated with conductive glue together, keep the belt clean, and avoid debris affecting the transmission accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical manufacturing, and in particular to a shingled string welding device for battery cells. Background Art

[0002] In the production process of solar cell shingled modules, two adjacent cells are stacked, and the stacked parts are coated with conductive glue, which needs to be heated to solidify the conductive glue so that the cells are welded together. The shingled cell strings need to be accurately transmitted, and the robot ensures the accuracy between each group of cells. Ordinary conveyor lines only provide transmission functions. The position of the products on the belt is difficult to be accurately fixed, which directly affects the welding products. Since welding is performed on the transmission belt, the belt is easily contaminated, which directly affects the transmission of the next cell. Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a shingled string welding device for cells. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a shingled string welding device for battery cells, which has dual adsorption of gas and static electricity to ensure smooth and accurate transportation of battery cells, can weld battery cells coated with conductive glue together, keep the belt clean, and avoid debris affecting the transmission accuracy.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a shingled string welding device for battery cells, the shingled string welding device for battery cells includes a transmission skeleton, a harmonic reduction power module, a driven wheel assembly, a belt, an adsorption heating module, an electrostatic generator, a wind knife, a belt wiping assembly and a supporting roller, the transmission skeleton is provided with a harmonic reduction power module and a driven wheel assembly on both sides, the harmonic reduction power module and the driven wheel assembly pass through the belt, and the transmission skeleton below the belt is provided with an adsorption heating module closely attached in sequence, the adsorption heating module is composed of a heating zone, a heat preservation zone and a heat dissipation zone according to heating and heat dissipation, an electrostatic generator is provided on the left side of the driven wheel assembly to align with the belt, the belt carries static electricity, and the battery cells are adsorbed by static electricity, and a wind knife, a belt wiping assembly and a supporting roller are provided below the transmission skeleton, and the belt passes through the wind knife and the belt wiping assembly and is located on the supporting roller.

[0005] Preferably, the adsorption heating module comprises a supporting base plate, a heat insulation plate, an adsorption plate, an air suction pipe, a heating pipe, a thermocouple, a heat sink, a heat dissipation pipe and a sealing ring, the supporting base plate is arranged on the transmission frame, a heat insulation plate is installed on the supporting base plate, an adsorption plate is arranged on the heat insulation plate, an adsorption cavity is arranged on the bottom surface of the adsorption plate, an adsorption groove communicating with the adsorption cavity is arranged on the upper surface of the adsorption plate, the adsorption groove is arranged horizontally, an air suction pipe is installed at the bottom of the supporting base plate, the air suction pipe is communicated with the adsorption cavity, the air suction pipe is externally connected to a vacuum pump, and the adsorption plate is inserted Two heating tubes and a thermocouple are installed. The thermocouple is used to measure temperature. The heat insulation plates on both sides of the adsorption cavity and the opposite side of the adsorption plate are provided with heat dissipation cavities. Heat sinks are installed in the heat dissipation cavities. Heat dissipation pipes connected to the adsorption cavity are installed on the supporting bottom plate below the adsorption cavity. The two heat dissipation pipes are connected. The heat dissipation pipes are connected to an external fan. A rectangular groove is provided on the heat insulation plate outside the adsorption cavity. A sealing ring is installed in the rectangular groove. The sealing ring is set to prevent air leakage. The adsorption plate is made of aluminum alloy. The surface of the adsorption plate is blackened at low temperature. The adsorption plate does not deform when heated and has a smooth surface.

[0006] Preferably, the harmonic reduction power module includes a harmonic reducer and an active roller. The active roller is inserted into one end of the transmission frame. The harmonic reducer drives the active roller to rotate. The active roller is hollow in design and light in weight.

[0007] Preferably, the driven wheel assembly includes a tensioning cylinder, a push plate, a linear guide, a roller bracket, a fixed block, a micrometer, a locking screw, an adjusting block and a driven roller, the tensioning cylinder being fixed to the lower end of the transmission frame through a connecting plate, the telescopic rod of the tensioning cylinder being fixed to the push plate through a connecting head, the push plate and the lower end of the transmission frame being connected through a linear guide, two slide grooves are provided on the push plate, the roller bracket is installed in the slide grooves, a fixed block is installed on the push plate, a micrometer and a locking screw are installed on the fixed block, an adjusting block cooperating with the micrometer is provided on the roller bracket, opposite to the locking screw and the roller bracket, after the position is adjusted, the roller bracket is fixed to the push plate by screws, and the driven rollers are inserted into the two roller brackets.

[0008] Preferably, the belt is made of light-transmitting Teflon material, and an array of air holes is provided on the belt, and the air holes are used in conjunction with the adsorption heating module.

[0009] Preferably, the belt wiping assembly comprises a spring seat, a spring, a lower core plate, an upper mounting plate, an upper core plate and a wiping assembly, the upper end surface of the spring seat is provided with a rectangular groove, a spring is installed in the rectangular groove, the upper end of the spring is sleeved with the lower core plate, the upper mounting plate is fixed on the transmission skeleton above the lower core plate, the upper core plate is installed at the lower end of the upper mounting plate, and the opposite surfaces of the lower core plate and the upper core plate are inserted with transversely arranged and opposite wiping assemblies; the wiping assembly comprises a pressing plate, a fixing plate, wiping paper, a ball head plunger and a knob, guide grooves are provided on both sides of the upper core plate, pressing plates are inserted in the guide grooves, fixing plates are installed at the lower ends of the two pressing plates, wiping paper is installed at the lower end of the fixing plates, the wiping paper is made of soft foamed silicone, the upper core plate and the side end array of the pressing plate are provided with connecting holes, the connecting holes are equipped with ball head plungers, the ball head plunger is used to fix the wiping assembly, the side end of the fixing plate is installed with a knob, and the knob is used to insert the wiping assembly.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] Gas adsorption plus electrostatic adsorption, double adsorption ensures smooth and accurate transportation of battery cells;

[0012] The adsorption heating module integrates heating, heat preservation and heat dissipation, and can weld the battery cells coated with conductive glue together;

[0013] The lower end of the belt passes through the air knife and belt wiping assembly to keep the belt clean and prevent debris from affecting the transmission accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the structure of a shingled string welding device for a battery cell.

[0015] Figure 2 for Figure 1 Schematic diagram of some structures.

[0016] Figure 3 It is a schematic diagram of the structure of the driven wheel assembly.

[0017] Figure 4 This is a top view of the adsorption heating module.

[0018] Figure 5 for Figure 4 Section view AA.

[0019] Figure 6 It is a schematic diagram of the partial structure of the adsorption heating module.

[0020] Figure 7 Schematic diagram of the belt wiping assembly structure.

[0021] Figure 8 Cutaway view of the belt wipe assembly. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] See also Figures 1 to 8 , the embodiment of the present invention includes:

[0024] A shingled series welding device for battery cells, the shingled series welding device for battery cells comprising a transmission skeleton 1, a harmonic reduction power module 2, a driven wheel assembly 3, a belt 4, an adsorption heating module 5, an electrostatic generator 6, a wind knife 7, a belt wiping assembly 8 and a supporting roller 9, the transmission skeleton 1 is provided with a harmonic reduction power module 2 and a driven wheel assembly 3 on both sides, the harmonic reduction power module 2 and the driven wheel assembly 3 pass through the belt 4, the transmission skeleton 1 below the belt 4 is provided with an adsorption heating module 5 which is closely attached in sequence, the adsorption heating module 5 is composed of a heating zone 501, a heat preservation zone 502 and a heat dissipation zone 503 according to the heating temperature and the heat dissipation, an electrostatic generator 6 is provided on the left side of the driven wheel assembly 3 to align with the belt 4, the belt 4 carries static electricity, and the battery cells are adsorbed by static electricity, the transmission skeleton 1 is provided with a wind knife 7, a belt wiping assembly 8 and a supporting roller 9, the belt 4 passes through the wind knife 7 and the belt wiping assembly 8 and is located on the supporting roller 9.

[0025] The adsorption heating module 5 includes a supporting base plate 51, a heat insulation plate 52, an adsorption plate 53, an air suction pipe 54, a heating pipe 55, a thermocouple 56, a heat sink 57, a heat dissipation pipe 58 and a sealing ring 59. The supporting base plate 51 is arranged on the transmission skeleton 1, and the supporting base plate 51 is provided with a heat insulation plate 52, and the adsorption plate 53 is arranged on the heat insulation plate 52. The bottom surface of the adsorption plate 53 is provided with an adsorption cavity 530, and the upper end surface of the adsorption plate 53 is provided with an adsorption groove 531 which is communicated with the adsorption cavity 530. The adsorption groove 531 is arranged horizontally. The bottom of the supporting base plate 51 is provided with an air suction pipe 54, and the air suction pipe 54 is communicated with the adsorption cavity 530. The air suction pipe 54 is externally connected to a vacuum pump. Two heating tubes 55 and a thermocouple 56 are inserted on 53, and the thermocouple 56 is used to measure the temperature. The heat insulation plates 52 on both sides of the adsorption cavity 530 and the opposite surfaces of the adsorption plate 53 are provided with heat dissipation cavities 520, and heat sinks 57 are installed in the heat dissipation cavity 520. A heat dissipation pipe 58 connected to the adsorption cavity 530 is installed on the supporting bottom plate 51 below the adsorption cavity 530. The two heat dissipation pipes 58 are connected, and the heat dissipation pipe 58 is externally connected to a fan. A rectangular groove is provided on the heat insulation plate 52 outside the adsorption cavity 530, and a sealing ring 59 is installed in the rectangular groove. The setting of the sealing ring 59 prevents air leakage. The adsorption plate 53 is made of aluminum alloy, and the surface of the adsorption plate 53 is blackened at low temperature. The adsorption plate 53 does not deform when heated and has a smooth surface.

[0026] The harmonic reduction power module 2 includes a harmonic reducer 21 and an active roller 22. The active roller 22 is inserted into one end of the transmission frame 1. The harmonic reducer 21 drives the active roller 22 to rotate. The active roller 22 is hollow in design and light in weight.

[0027] The driven wheel assembly 3 includes a tensioning cylinder 31, a push plate 32, a linear guide 33, a roller bracket 34, a fixing block 35, a micrometer 36, a locking screw 37, an adjusting block 38 and a driven roller 39. The tensioning cylinder 31 is fixed to the lower end of the transmission skeleton 1 through a connecting plate, and the telescopic rod of the tensioning cylinder 31 is fixed to the push plate 32 through a connecting head. The push plate 32 is connected to the lower end of the transmission skeleton 1 through a linear guide 33. Two slide grooves are provided on the push plate 32, and the roller bracket 34 is installed in the slide grooves. A fixing block 35 is installed on the push plate 32, and a micrometer 36 and a locking screw 37 are installed on the fixing block 35. An adjusting block 38 cooperating with the micrometer 36 is provided on the roller bracket 34, which is opposite to the locking screw 37 and the roller bracket 34. After the position is adjusted, the roller bracket 34 is fixed to the push plate 32 by screws, and driven rollers 39 are inserted into the two roller brackets 34.

[0028] The belt 4 is made of light-transmitting Teflon material, and an array of air holes 40 are arranged on the belt 4 . The air holes 40 are used in conjunction with the adsorption heating module 5 .

[0029] The belt wiping assembly 8 includes a spring seat 81, a spring 82, a lower core plate 83, an upper mounting plate 84, an upper core plate 85 and a wiping assembly 86. The upper end surface of the spring seat 81 is provided with a rectangular groove 80, in which a spring 82 is installed, and the upper end of the spring 82 is sleeved with a lower core plate 83, and an upper mounting plate 84 is fixed on the transmission frame 1 above the lower core plate 83, and an upper core plate 85 is installed at the lower end of the upper mounting plate 84. The opposite surfaces of the lower core plate 83 and the upper core plate 85 are inserted with a transversely arranged and opposite wiping assembly 86; the wiping assembly 86 includes a pressing plate 861, a fixing plate 862 , wiping paper 863, ball head plunger 864 and knob 865. Guide grooves are arranged on both sides of the upper core plate 85, and pressure plates 861 are inserted in the guide grooves. Fixed plates 862 are installed at the lower ends of the two pressure plates 861, and wiping paper 863 is installed at the lower end of the fixed plate 862. The wiping paper 863 is made of soft foamed silicone. The side ends of the upper core plate 85 and the pressure plate 861 are arrayed with connecting holes, and ball head plungers 864 are installed in the connecting holes. The ball head plunger 864 is used to fix the wiping assembly 86. The side end of the fixed plate 862 is installed with a knob 865, and the knob 865 is used to insert the wiping assembly 86.

[0030] When the battery cell imbrication string welding device of the present invention is working, the driven wheel assembly 3 adjusts the tension of the belt 4, the manipulator stacks the battery cells coated with conductive glue on the belt 4 in sequence, the adsorption heating module 5 works, the suction pipe 54 is connected to the external vacuum pump to work, the adsorption gas in the adsorption plate 53 passes through the air holes 40 on the belt to adsorb the battery cells, and at the same time the adsorption plate 53 plays the role of supporting the belt 4, the electrostatic generator 6 acts on the belt 4, the belt 4 carries electrostatic adsorption of the battery cells, the gas adsorption is combined with electrostatic adsorption, and the double adsorption ensures the smooth and accurate transportation of the battery cells, the driven wheel assembly 3 adjusts the tension of the belt 4, and the harmonic reducer 21 drives the main The roller 22 is driven to move the belt 4, and the battery cell is transported to the heating zone 501, the heating tube 55 is heated, the conductive glue at the overlapping part of the two battery cells is heated and melted, the battery cell continues to be transported to the heat preservation zone 502, the heating tube 55 maintains the working temperature, the battery cell continues to be transported to the heat dissipation zone 503, the heating tube 55 stops working, the heat dissipation duct 58 is connected to an external fan to work, dissipate heat, and cool and fix together after melting. At this time, the two battery cells are welded together, and the support roller 9 supports the belt 4 to be rotated to the bottom. The belt 4 passes through the wind knife 7 and the belt wiping assembly 8. The wind knife 7 and the belt wiping assembly 8 keep the belt clean to prevent debris from affecting the transmission accuracy.

[0031] The present invention discloses a shingled string welding device for battery cells, which uses gas and static electricity for dual adsorption to ensure smooth and accurate transportation of the battery cells, can weld battery cells coated with conductive glue together, keep the belt clean, and prevent debris from affecting the transmission accuracy.

[0032] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A shingle welding device for battery cells, characterized in that: The shingled string welding device for the battery cell comprises a transmission frame, a harmonic reduction power module, a driven wheel assembly, a belt, an adsorption heating module, an electrostatic generator, an air knife, a belt wiping assembly and a supporting roller. The transmission frame is provided with a harmonic reduction power module and a driven wheel assembly on both sides. The harmonic reduction power module and the driven wheel assembly pass through the belt. The transmission frame below the belt is provided with an adsorption heating module that is closely attached in sequence. The adsorption heating module is composed of a heating zone, a heat preservation zone and a heat dissipation zone according to heating and heat dissipation. An electrostatic generator is provided on the left side of the driven wheel assembly to align with the belt. A wind knife, a belt wiping assembly and a supporting roller are provided below the transmission frame. The belt passes through the wind knife and the belt wiping assembly and is located on the supporting roller. The adsorption heating module comprises a supporting base plate, a heat insulation plate, an adsorption plate, an air suction pipe, a heating pipe, a thermocouple, a heat sink, a heat dissipation pipe and a sealing ring. The supporting base plate is arranged on the transmission frame, and a heat insulation plate is installed on the supporting base plate. The adsorption plate is arranged on the heat insulation plate, and an adsorption plate is arranged on the bottom surface of the adsorption plate. An adsorption cavity is arranged on the bottom surface of the adsorption plate, and an adsorption groove communicating with the adsorption cavity is arranged on the upper end surface of the adsorption plate. The adsorption groove is arranged horizontally, and an air suction pipe is installed at the bottom of the supporting base plate, and the air suction pipe is communicated with the adsorption cavity. The air suction pipe is externally connected to a vacuum pump, and two heating pipes and a thermocouple are inserted on the adsorption plate. Heat dissipation cavities are arranged on the heat insulation plates on both sides of the adsorption cavity and on the opposite surfaces of the adsorption plates, and heat sinks are installed in the heat dissipation cavity. A heat dissipation pipe communicating with the adsorption cavity is installed on the supporting base plate below the adsorption cavity, and the two heat dissipation pipes are communicated. The heat dissipation pipe is externally connected to a fan, and a rectangular groove is arranged on the heat insulation plate outside the adsorption cavity, and a sealing ring is arranged in the rectangular groove. The adsorption plate is made of aluminum alloy, and the surface of the adsorption plate is subjected to low-temperature blackening treatment; The driven wheel assembly includes a tensioning cylinder, a push plate, a linear guide rail, a roller bracket, a fixed block, a micrometer, a locking screw, an adjusting block and a driven roller. The tensioning cylinder is fixed to the lower end of the transmission frame through a connecting plate. The telescopic rod of the tensioning cylinder is fixed to the push plate through a connecting head. The push plate is connected to the lower end of the transmission frame through a linear guide rail. Two slide grooves are arranged on the push plate. The roller bracket is installed in the slide groove. A fixed block is installed on the push plate. A micrometer and a locking screw are installed on the fixed block. An adjusting block matching with the micrometer is arranged on the roller bracket, which is opposite to the locking screw and the roller bracket. The roller bracket is fixed to the push plate through screws. The driven rollers are inserted on the two roller brackets. The belt is made of light-transmitting Teflon material, and an array of air holes is arranged on the belt, and the air holes are used in conjunction with the adsorption heating module; The belt wiping assembly includes a spring seat, a spring, a lower core plate, an upper mounting plate, an upper core plate and a wiping assembly, the upper end surface of the spring seat is provided with a rectangular groove, a spring is installed in the rectangular groove, the upper end of the spring is sleeved with the lower core plate, the upper mounting plate is fixed on the transmission frame above the lower core plate, the lower end of the upper mounting plate is installed with the upper core plate, and the opposite surfaces of the lower core plate and the upper core plate are inserted with transversely arranged and opposite wiping assemblies; the wiping assembly includes a pressing plate, a fixing plate, wiping paper, a ball head plunger and a knob, guide grooves are provided on both sides of the upper core plate, a pressing plate is inserted in the guide groove, a fixing plate is installed at the lower end of the two pressing plates, and wiping paper is installed at the lower end of the fixing plate, the wiping paper is made of soft foamed silicone, the upper core plate and the side end array of the pressing plate are provided with connecting holes, the connecting holes are equipped with ball head plungers, and the side end of the fixing plate is installed with a knob.

2. The shingled string welding device for battery cells according to claim 1, characterized in that: The harmonic reduction power module includes a harmonic reducer and an active roller. The active roller is inserted into one end of the transmission frame. The harmonic reducer drives the active roller to rotate. The active roller is hollow in design.

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