CN216989657U - Welding wire bending equipment for photovoltaic module - Google Patents
Welding wire bending equipment for photovoltaic module Download PDFInfo
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- CN216989657U CN216989657U CN202220376912.9U CN202220376912U CN216989657U CN 216989657 U CN216989657 U CN 216989657U CN 202220376912 U CN202220376912 U CN 202220376912U CN 216989657 U CN216989657 U CN 216989657U
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Abstract
The utility model relates to a welding wire bending device for a photovoltaic module, which comprises an upper die, a lower die, a conveying mechanism, a heating mechanism and a suction mechanism, wherein the upper die is positioned above the lower die; the conveying mechanism is positioned between the upper die and the lower die and used for conveying welding wires; the heating mechanism is used for heating the upper die and the lower die, or the heating mechanism is used for heating the welding wire; the suction mechanism is used for sucking out tin dross on the surface of the welding wire and comprises one or more suction pipes and a vacuum generator, wherein one end of each suction pipe is a suction end, the suction ends are used for facing the welding wire positioned between the upper die and the lower die, and the vacuum generator is communicated with the other end of each suction pipe and used for providing suction for the suction pipes. According to the equipment provided by the utility model, the heating mechanism and the suction mechanism are arranged, so that the flexibility of the welding wire bending position can be increased when the welding wire is subjected to bending treatment, and the lamination fragment rate is reduced.
Description
Technical Field
The utility model relates to a welding wire bending device for a photovoltaic module.
Background
Along with the updating iteration of the photovoltaic technology, in order to better improve the generating efficiency of the component, the development direction of the photovoltaic cell is a multi-main grid, and the development direction of the photovoltaic component is lamination. The main grids of the multi-main grid battery are thin, the conventional welding wires cannot meet the requirements of the multi-main grid battery, and the multi-main grid battery is replaced by the welding wires. And the wire reflects light much more than conventional wires. However, with the use of lamination technology, the welding wire has a small contact surface, and is prone to cause a risk of cracking of the battery piece during lamination. To avoid this risk, manufacturers generally flatten the welding wire at the position of the cell lamination, which greatly reduces the fragmentation rate of the cell, but cannot reduce it to zero.
The welding wires at the lamination positions of the battery pieces are flattened in a cold pressing mode at present, the hardness of the welding wires before flattening is about 10, the hardness of the welding wires after flattening is 50, the battery pieces are easy to crack when contacting the flattened welding wires, and the lamination fragment rate is high.
Disclosure of Invention
The utility model aims to provide welding wire bending equipment for a photovoltaic module, and the welding wire bending equipment is used for solving the problem that the existing double-sided photovoltaic module is high in lamination fragment rate.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the welding wire bending device for the photovoltaic module comprises an upper die, a lower die, a conveying mechanism, a heating mechanism and a sucking mechanism, wherein the upper die is positioned above the lower die, and the upper die and the lower die are used for stamping the welding wire positioned between the upper die and the lower die; the conveying mechanism is positioned between the upper die and the lower die and is used for conveying welding wires to be bent; the heating mechanism is used for heating the upper die and the lower die, or the heating mechanism is used for heating a welding wire; the device comprises a drawing mechanism, a lower die and a vacuum generator, wherein the drawing mechanism is used for drawing out tin dross on the surface of a welding wire subjected to stamping and heating, the drawing mechanism comprises one or more suction pipes and the vacuum generator, one end of each suction pipe is a suction end, the suction end is used for facing the welding wire positioned between the upper die and the lower die, and the vacuum generator is communicated with the other end of each suction pipe and used for providing suction for the suction pipe.
Preferably, the heating mechanism includes a first heating member disposed on the upper die and a second heating member disposed on the lower die, and the first heating member and the second heating member are respectively used for heating the stamping head of the upper die and the stamping head of the lower die.
Preferably, the first heating part and the second heating part both comprise electromagnetic heating coils or resistance wires.
Preferably, the heating mechanism comprises a positive electrode, a negative electrode and a power supply, and the positive electrode and the negative electrode are electrically connected with the power supply and used for heating the welding wire.
Preferably, the positive electrode and the negative electrode are respectively located on two opposite sides of the welding wire in the conveying direction.
Preferably, the positive electrode and the negative electrode are respectively close to two opposite ends of the welding wire.
Preferably, the positive electrode and the negative electrode are both in a strip shape.
Preferably, the positive electrode and the negative electrode are made of metal, conductive adhesive, graphene or carbon fiber, wherein the metal includes stainless steel, tungsten alloy, platinum-iridium alloy, copper, gold or silver.
Preferably, the suction mechanism is located below the conveying mechanism, the suction mechanism further comprises a connecting pipe, one end of the connecting pipe is communicated with the vacuum generator, and the other end of the connecting pipe is communicated with the suction pipe.
Preferably, the apparatus further comprises a clamping mechanism for clamping the welding wire.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the welding wire bending equipment for the photovoltaic module, the heating mechanism and the suction mechanism are arranged, so that the flexibility of the welding wire bending position can be increased when the welding wire is bent, and the lamination fragment rate is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a welding wire bending device for a photovoltaic module with unprocessed welding wires according to a first embodiment of the utility model;
fig. 2 is a schematic structural diagram of a welding wire bending device for a photovoltaic module after welding wire processing according to a first embodiment of the utility model;
fig. 3 is a schematic structural diagram of a welding wire bending device for a photovoltaic module, in which a welding wire is not processed, according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a wire bending apparatus for a photovoltaic module in wire processing according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a wire bending device for a photovoltaic module after wire welding according to a second embodiment of the present invention;
FIG. 6 is a front view of an unprocessed wire;
FIG. 7 is a top view of the processed wire.
In the above drawings: 1-upper die, 2-lower die, 3-welding wire, 4-anode electrode and 5-cathode electrode.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The welding wire 3 bending device for photovoltaic modules shown in fig. 1 to 5 comprises an upper die 1, a lower die 2, a conveying mechanism, a heating mechanism and a suction mechanism. The untreated welding wire 3 is in a strip shape, see fig. 6, and the thickness of the middle part of the welding wire 3 after bending treatment is smaller than the thickness of the two ends thereof, and the width of the middle part is larger than the width of the two ends thereof, see fig. 7.
Go up mould 1 and be located 2 tops of bed die, go up mould 1 and bed die 2 and be used for punching press to the welding wire 3 that is located between the two, go up mould 1 and bed die 2 and all have a punching press head, go up the relative setting of punching press head of mould 1 and bed die 2, go up mould 1, bed die 2 and move to being close to or keeping away from the other side direction by actuating mechanism drive, if actuating mechanism is the cylinder.
Conveying mechanism is located between mould 1 and the bed die 2, and conveying mechanism is used for carrying and treats the welding wire 3 of bending to carry welding wire 3 to between mould 1 and the bed die 2 and carry away the welding wire after the punching press, the direction of delivery of welding wire 3 is the extending direction (length direction) of welding wire 3, and the welding wire after punching press is decided to the welding wire after will cutting usually earlier, then will decide the welding wire of back quilt punching press and carry to next process.
The feeding mechanism includes a winding reel on which the welding wire is wound, and a driving member (e.g., a motor) for driving the winding reel to rotate. The device also comprises a cutting mechanism and a clamping mechanism which are arranged along the welding wire conveying direction, wherein the clamping mechanism is used for clamping the welding wire 3, if one end along the extension direction of the welding wire is clamped, the cutting mechanism is positioned at the downstream of the clamping mechanism, the cutting mechanism is used for cutting off the punched welding wire, one end of the welding wire is wound on the winding reel in the machining process, the other end of the welding wire is clamped by the clamping mechanism, the welding wire is conveyed to the cutting mechanism to be cut off after being punched, then the cutting welding wire 3 is moved away by the grabbing mechanism, the clamping mechanism and the cutting mechanism are both provided with various structures, and the specific structures of the clamping mechanism and the cutting mechanism are not elaborated.
The heating mechanism is used for heating the upper die 1 and the lower die 2, or the heating mechanism is used for heating the welding wire 3.
When heating mechanism is to going up mould 1 and 2 heats of bed die, heating mechanism is including setting up the first heater block on last mould 1, setting up the second heater block on bed die 2, and first heater block, second heater block are used for respectively heating the punching press head of going up mould 1, the punching press head of bed die 2, and first heater block, second heater block all include electromagnetic heating circle or resistance wire. The stamping head of the upper die 1 and the stamping head of the lower die 2 are heated in an electric heating mode, the temperature of the heated stamping heads can reach about 300 ℃, and the welding wire 3 is stamped by the heated stamping heads with high temperature.
Or when the heating mechanism is used for heating the welding wire 3, the temperature of the stamping head of the upper die 1 and the stamping head of the lower die 2 is normal temperature (about 25 ℃), and after the stamping head of the upper die 1 and the stamping head of the lower die 2 stamp the welding wire 3, the heating mechanism is used for heating the stamped welding wire 3, for example, by an electric heating mode, the welding wire 3 can be heated by the part of the current passing through the welding wire 3.
In this case, the heating means includes a positive electrode 4, a negative electrode 5, and a power supply, and the positive electrode 4 and the negative electrode 5 are electrically connected to the power supply to heat the welding wire 3. The positive electrode 4 and the negative electrode 5 are respectively located on two opposite sides (upper and lower sides of the welding wire in fig. 3) of the extending direction of the welding wire 3, that is, one of the positive electrode 4 and the negative electrode 5 is located on one side of the upper die 1, the other of the positive electrode 4 and the negative electrode 5 is located on one side of the lower die 2, the positive electrode 4 and the negative electrode 5 are respectively close to two opposite ends of the welding wire 3, that is, one of the positive electrode 4 and the negative electrode 5 is close to one end of the welding wire 3, and the other of the positive electrode 4 and the negative electrode 5 is close to the other end of the welding wire 3.
The positive electrode 4 and the negative electrode 5 are both in a strip shape. The positive electrode 4 and the negative electrode 5 are made of metal, conductive adhesive, graphene or carbon fiber, wherein the metal includes stainless steel, tungsten alloy, platinum-iridium alloy, copper, gold or silver, such as conductive metal wire, conductive metal foil or conductive metal sheet.
No matter heating mechanism heats cope match- plate pattern utensil 1 and 2 heating of bed die, still heating mechanism heats welding wire 3, all can make 3 temperature of welding wire after the punching press rise, welding wire 3 is made by the metal, when 3 cold forgings to metal welding wire, the metallography changes, cause the hardness increase of welding wire 3 itself, thereby influence the battery piece rate, and heat the welding wire back, can make the metallography reply state in earlier stage, make it soft, the hardness change of welding wire 3 itself is little, difficult emergence is cracked after 3 when the battery piece contact welding wire, and then promote the photovoltaic cell yield.
The suction mechanism is used for sucking out the tin dross (molten tin) on the surface of the punched and heated welding wire 3, and after the temperature of the welding wire 3 is raised, the heating temperature is higher than the melting point of tin due to the low melting point of tin, so that a little molten tin is generated on the surface of the heated welding wire 3, and the liquid tin dross needs to be sucked by the suction mechanism.
The structure of the suction mechanism is as follows: the tin soldering machine comprises one or more suction pipes and a vacuum generator, wherein one end of each suction pipe is a suction port end, the suction port end is used for facing a welding wire 3 positioned between an upper die 1 and a lower die 2, the vacuum generator is communicated with the other end of each suction pipe and used for providing suction for the suction pipe, and when the suction pipe faces the welding wire after stamping and heating, the vacuum generator is started to suck molten tin away.
The suction mechanism is positioned below the conveying mechanism, namely positioned below the upper die and one side of the lower die 2, and further comprises a connecting pipe, one end of the connecting pipe is communicated with the vacuum generator, and the other end of the connecting pipe is communicated with the suction pipe. The vacuum generator may be a vacuum pump.
Example one
The equipment comprises an upper die 1, a lower die 2, a conveying mechanism, a heating mechanism and a suction mechanism, wherein the heating mechanism heats the upper die 1 and the lower die 2. The specific embodiment of the heating of the welding wire 3 by using the device is as follows: the stamping head of the upper die 1 and the stamping head of the lower die 2 are heated in an electric heating mode, and the heated stamping heads perform hot stamping on the welding wires 3.
Example two
Equipment includes mould 1, bed die 2, conveying mechanism, heating mechanism and suction mechanism, and heating mechanism heats welding wire 3, and heating mechanism includes anodal electrode 4, negative electrode 5, power, and the temperature of going up the punching press head of mould 1 and the punching press head of bed die 2 is the normal atmospheric temperature, uses this equipment to carry out the concrete implementation mode that heats to welding wire 3 as follows: the welding wire 3 is firstly stamped by the stamping head of the upper die 1 and the stamping head of the lower die 2, and then the stamped welding wire 3 is heated by the heating mechanism, so that the heating repeatability, the temperature uniformity and the current are easy to control.
The hardness of the bent welding wire 3 provided by the first embodiment and the second embodiment is about 10, which is not much different from the hardness of the original welding wire 3 which is not bent, and the fragment rate of the battery piece is very small after the welding wire 3 is assembled with the battery piece.
Use the photovoltaic module to bend the equipment and bend the welding wire for welding wire and handle, the compliance of multiplicable welding wire position of bending reduces the lamination piece rate.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. The welding wire bending device for the photovoltaic module is characterized by comprising an upper die, a lower die, a conveying mechanism, a heating mechanism and a sucking mechanism, wherein the upper die is positioned above the lower die, and the upper die and the lower die are used for stamping the welding wire positioned between the upper die and the lower die; the conveying mechanism is positioned between the upper die and the lower die and is used for conveying welding wires to be bent; the heating mechanism is used for heating the upper die and the lower die, or the heating mechanism is used for heating a welding wire; the suction mechanism is used for sucking out tin dross on the surface of the welding wire, the suction mechanism comprises one or more suction pipes and a vacuum generator, one end of each suction pipe is a suction end, the suction ends are used for facing the welding wire between the upper die and the lower die, and the vacuum generator is communicated with the other end of each suction pipe and used for providing suction for the suction pipe.
2. The welding wire bending device for the photovoltaic module according to claim 1, wherein the heating mechanism comprises a first heating member arranged on the upper die and a second heating member arranged on the lower die, and the first heating member and the second heating member are respectively used for heating the stamping head of the upper die and the stamping head of the lower die.
3. The welding wire bending device for the photovoltaic module according to claim 2, wherein the first heating part and the second heating part comprise electromagnetic heating rings or resistance wires.
4. The welding wire bending device for the photovoltaic module according to claim 1, wherein the heating mechanism comprises a positive electrode, a negative electrode and a power supply, and the positive electrode and the negative electrode are both electrically connected with the power supply for heating the welding wire.
5. The welding wire bending device for the photovoltaic module as recited in claim 4, wherein the positive electrode and the negative electrode are respectively located on two opposite sides of the feeding direction of the welding wire.
6. The welding wire bending device for the photovoltaic module according to claim 5, wherein the positive electrode and the negative electrode are respectively close to two opposite ends of the welding wire.
7. The welding wire bending device for the photovoltaic module as recited in claim 4, wherein the positive electrode and the negative electrode are both in a strip shape.
8. The welding wire bending device for the photovoltaic module according to claim 4, wherein the positive electrode and the negative electrode are made of metal, conductive adhesive or carbon fiber, wherein the metal comprises stainless steel, tungsten alloy, platinum-iridium alloy, copper, gold or silver.
9. The apparatus according to claim 1, wherein the suction mechanism is located below the conveying mechanism, the suction mechanism further comprises a connecting pipe, one end of the connecting pipe is communicated with the vacuum generator, and the other end of the connecting pipe is communicated with the suction pipe.
10. The apparatus according to claim 1, further comprising a clamping mechanism for clamping the welding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220376912.9U CN216989657U (en) | 2022-02-23 | 2022-02-23 | Welding wire bending equipment for photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220376912.9U CN216989657U (en) | 2022-02-23 | 2022-02-23 | Welding wire bending equipment for photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216989657U true CN216989657U (en) | 2022-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220376912.9U Active CN216989657U (en) | 2022-02-23 | 2022-02-23 | Welding wire bending equipment for photovoltaic module |
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| Country | Link |
|---|---|
| CN (1) | CN216989657U (en) |
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- 2022-02-23 CN CN202220376912.9U patent/CN216989657U/en active Active
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