Photovoltaic module leading-out wire smoothing device and smoothing method thereof

Abstract

The invention relates to a photovoltaic module leading-out wire flattening device and a flattening method thereof, and belongs to the technical field of photovoltaic module manufacturing, and the photovoltaic module leading-out wire flattening method comprises the steps that a transfer unit descends and moves in the direction close to a photovoltaic module, a first abutting unit abuts against a first leading-out wire, and a second abutting unit abuts against a second leading-out wire; the first second abutting unit abuts against the first outgoing line to flatten a first horizontal part of the first outgoing line, the second first abutting unit abuts against the second outgoing line, and the second second abutting unit abuts against the second outgoing line to flatten a second horizontal part of the second outgoing line, so that the first working position is switched to the second working position; the first working position is a working initial position of the photovoltaic module outgoing line smoothing device, and the second working position is a working stop position of the photovoltaic module outgoing line smoothing device. According to the invention, the welding quality of the junction box and the outgoing line can be improved, the repair rate and the reject ratio of the photovoltaic module are reduced, and the quality and the reliability of the photovoltaic module are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic module manufacturing, and specifically relates to a photovoltaic module lead-out line smoothing device and a smoothing method thereof. Background Art

[0002] In the existing field of solar photovoltaic technology, photovoltaic module technology refers to the technology that directly converts solar light energy into electrical energy through the photovoltaic effect, and has become one of the core products in the development of the new energy industry. With the advancement of global energy transformation, solar energy, as a green, clean, and renewable energy, has been widely used in many countries and regions and has become a mainstream sustainable energy solution. As the core part of the photovoltaic power generation system, the performance of photovoltaic modules directly affects the efficiency, stability, and economy of the entire photovoltaic power generation system.

[0003] Photovoltaic modules usually include packaging materials such as front glass, upper and lower EVA / POE films, battery strings, busbars, back panels, junction boxes, and frames. Each part plays a different role to ensure that photovoltaic modules can work stably for a long time under different environmental conditions. The front glass provides protection against the impact of the external environment; the EVA / POE film serves to encapsulate and protect the battery string; the back panel provides waterproof and dustproof functions to ensure that the inside of the module is not damaged by the external environment; the junction box is a key component that connects the battery string and the external circuit, and is responsible for connecting the power output generated by the battery string to the power grid or energy storage system.

[0004] In photovoltaic modules, the welding quality between the junction box and the busbar is particularly important. The junction box extracts the electrical energy of the battery string through the busbar, and the lead wire is usually connected to the pad in the junction box to transmit current. The welding quality between the bent part of the lead wire of the busbar and the junction box directly affects the current transmission efficiency and the stability of the junction box. If the welding is poor, it may lead to unstable current, or even problems such as cold welding, leaking welding or poor contact, thus affecting the overall performance of the photovoltaic module. Especially during long-term use, poor welding contact between the junction box and the busbar may cause electrical failures or even safety hazards such as fire. Therefore, ensuring the welding quality between the junction box and the lead wire is crucial to improving the quality, reliability and life of photovoltaic modules.

[0005] In the existing welding device for the junction box and the lead wire (such as a laser welding device), after the two lead wires are inserted into the junction box, the existing welding device can only simply press the two ends of each lead wire, and then weld the lead wire and the welding pad of the junction box. However, since the lead wires usually have some protrusions or unevenness, these irregular lead wire shapes may cause insufficient contact between the junction box and the lead wires, affecting the stability of welding, and the existing welding device does not have a suitable mechanism to smooth the protrusions or uneven parts of the lead wires, which makes it easy for the junction box and the lead wires to have poor contact during the welding process of the junction box, resulting in loose welding, and even possible problems such as cold welding or leaking welding. The occurrence of these problems or phenomena will not only affect the welding quality of the junction box and the lead wires, increase the rework rate of photovoltaic modules, extend the production cycle, and increase costs, but may also cause safety hazards in the long-term use of photovoltaic modules, affecting the service life and safety of photovoltaic modules, thereby adversely affecting the stable operation of the entire photovoltaic power generation system.

[0006] Therefore, in order to solve these problems or phenomena, the existing welding device is required to have the function of adjusting the shape of the lead wire, so as to adjust the contact state of the lead wire and the welding pad of the junction box, thereby improving the welding quality of the junction box and the lead wire, and ensuring the reliability and quality of the solar photovoltaic module products. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects in the prior art and provide a photovoltaic module lead wire smoothing device and a smoothing method thereof, so as to partially or completely solve the technical problem that the existing lead wires usually have some protrusions or unevenness, resulting in poor welding of the lead wires between the junction box and the busbar. In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] In a first aspect, the present invention provides a photovoltaic module lead-out line smoothing device, comprising: a first pressing unit, a second pressing unit and a transfer unit, wherein the first pressing unit and the second pressing unit are mounted on the transfer unit, and the transfer unit drives the first pressing unit and the second pressing unit to move up and down in a direction away from or close to the photovoltaic module, wherein the first pressing unit comprises a first pressing unit 1 and a first pressing unit 2, and the second pressing unit comprises a second pressing unit 1 and a second pressing unit 2;

[0009] The photovoltaic module lead-out line smoothing device includes a first working position and a second working position;

[0010] In the first working position, the first pressing unit 1 and the second pressing unit 1 press against the first lead wire together, the first pressing unit 1 and the second pressing unit 1 are close to each other, the first pressing unit 2 and the second pressing unit 2 press against the second lead wire together, and the first pressing unit 2 and the second pressing unit 2 are close to each other;

[0011] In the second working position, the first pressing unit 1 and the second pressing unit 1 press against the first lead wire together, the first pressing unit 1 and the second pressing unit 1 are away from each other, the first pressing unit 2 and the second pressing unit 2 press against the second lead wire together, the first pressing unit 2 and the second pressing unit 2 are away from each other;

[0012] In the process of switching from the first working position to the second working position, the transfer unit moves downward in a direction close to the photovoltaic assembly, the first pressing unit 1 presses against the first lead-out line, the second pressing unit 1 presses against the first lead-out line to smooth the first horizontal portion of the first lead-out line, the first pressing unit 2 presses against the second lead-out line, and the second pressing unit 2 presses against the second lead-out line to smooth the second horizontal portion of the second lead-out line;

[0013] During the process of switching from the second working position to the first working position, the transfer unit moves upward in the direction away from the photovoltaic component, the first pressing unit 1 presses against the first lead-out line, the second pressing unit 1 presses against the first lead-out line to smooth the first horizontal portion of the first lead-out line, the first pressing unit 2 presses against the second lead-out line, and the second pressing unit 2 presses against the second lead-out line to smooth the second horizontal portion of the second lead-out line.

[0014] Optionally, the first pressing unit 1 includes a first extrusion part, a first slider, a first slide rail, and a first pressing head part, the first slider moves on the first slide rail, the first slider is connected to the first pressing head part, and the first extrusion part extrudes the first slider and the first pressing head part; the first pressing unit 2 includes a second extrusion part, a second slider, a second slide rail, and a second pressing head part, the second slider moves on the second slide rail, the second slider is connected to the second pressing head part, and the second extrusion part extrudes the second slider and the second pressing head part.

[0015] Optionally, the second pressing unit 1 includes a third extrusion part, a third slider, a third slide rail, and a third pressing head part, the third slider moves on the third slide rail, the third slider is connected to the third pressing head part, and the third extrusion part squeezes the third slider and the third pressing head part, and the second pressing unit 2 includes a fourth extrusion part, a fourth slider, a fourth slide rail, and a fourth pressing head part, the fourth slider moves on the fourth slide rail, the fourth slider is connected to the fourth pressing head part, and the fourth extrusion part squeezes the fourth slider and the fourth pressing head part.

[0016] Optionally, the first extrusion part includes a first cylinder, the second extrusion part includes a second cylinder, the third extrusion part includes a third cylinder, and the fourth extrusion part includes a fourth cylinder. The first working position is the initial working position of the photovoltaic module lead wire smoothing device, and the second working position is the working stop position of the photovoltaic module lead wire smoothing device.

[0017] Optionally, the first lead-out line includes a first horizontal portion and a first vertical portion, the second lead-out line includes a second horizontal portion and a second vertical portion, the first pressure head portion is L-shaped or 7-shaped, the first pressure head portion includes a horizontal portion one and a vertical portion one, the horizontal portion one connects the first slider and the vertical portion one; the second pressure head portion is L-shaped or 7-shaped, the second pressure head portion includes a horizontal portion two and a vertical portion two, the horizontal portion two connects the second slider and the vertical portion two; the vertical portion one and the vertical portion two respectively press and contact one end of the first horizontal portion close to the first vertical portion and one end of the second horizontal portion close to the second vertical portion.

[0018] Optionally, the third pressing head is L-shaped or 7-shaped, the third pressing head comprises a horizontal portion three and a vertical portion three, the horizontal portion three connects the third slider and the vertical portion three; the fourth pressing head is L-shaped or 7-shaped, the fourth pressing head comprises a horizontal portion four and a vertical portion four, the horizontal portion four connects the fourth slider and the vertical portion four;

[0019] In the first working position, vertical part three and vertical part four respectively press and contact one end of the first horizontal part close to vertical part one and one end of the second horizontal part close to vertical part two; in the second working position, vertical part three and vertical part four respectively press and contact one end of the first horizontal part away from vertical part one and one end of the second horizontal part away from vertical part two.

[0020] In a second aspect, the present invention provides a photovoltaic module lead wire smoothing method, using a photovoltaic module lead wire smoothing device as described in any one of the first aspects above, comprising:

[0021] Step S100, in the first working position, the first pressing unit 1 and the second pressing unit 1 are pressed against the first lead wire together, the first pressing unit 1 and the second pressing unit 1 are close to each other, the first pressing unit 2 and the second pressing unit 2 are pressed against the second lead wire together, and the first pressing unit 2 and the second pressing unit 2 are close to each other;

[0022] Step S200, the transfer unit moves downward in a direction close to the photovoltaic module, the first pressing unit 1 presses against the first lead wire, the second pressing unit 1 presses against the first lead wire to smooth the first horizontal portion of the first lead wire, the first pressing unit 2 presses against the second lead wire, the second pressing unit 2 presses against the second lead wire to smooth the second horizontal portion of the second lead wire, so as to switch from the first working position to the second working position;

[0023] Step S300, when in the second working position, the first pressing unit 1 and the second pressing unit 1 jointly press against the first lead-out line, the first pressing unit 1 and the second pressing unit 1 are away from each other, the first pressing unit 2 and the second pressing unit 2 jointly press against the second lead-out line, the first pressing unit 2 and the second pressing unit 2 are away from each other.

[0024] Optionally, the first working position is the initial working position of the photovoltaic module lead-out line smoothing device, and the second working position is the working stop position of the photovoltaic module lead-out line smoothing device.

[0025] Optionally, the photovoltaic module lead wire smoothing method further includes:

[0026] Step S400, the second working position is the working stop position of the photovoltaic module lead wire smoothing device. When it is in the working stop position, the junction box and the first lead wire and the second lead wire welding process are started.

[0027] Optionally, step S400 also includes step S500, in which the transfer unit moves upward in the direction away from the photovoltaic component, the first pressing unit 1 presses against the first lead-out line, the second pressing unit 1 presses against the first lead-out line to smooth the first horizontal portion of the first lead-out line, the first pressing unit 2 presses against the second lead-out line, and the second pressing unit 2 presses against the second lead-out line to smooth the second horizontal portion of the second lead-out line, so as to realize the switching from the second working position to the first working position.

[0028] In summary, the present invention has the following beneficial technical effects:

[0029] (1) In the present invention application, the photovoltaic module lead wire smoothing device enables the first pressing unit and the second pressing unit to press the lead wires respectively through the up and down lifting movement of the transfer unit, so as to smooth the first lead wire and the second lead wire, thereby ensuring that the first lead wire, the second lead wire and the junction box are in full contact, reducing the occurrence of problems such as cold soldering and leaking soldering, and reducing the risk of poor welding.

[0030] (2) In the present invention, the photovoltaic module lead wire smoothing device includes a first working position and a second working position. During the process of switching from the first working position to the second working position, the transfer unit moves downward in the direction close to the photovoltaic module. The first pressing unit and the second pressing unit can effectively smooth the raised parts of the lead wires through contact with the first lead wire and the second lead wire, and adjust the first lead wire and the second lead wire to a horizontal state to ensure that they are in good contact with the junction box pad. After the first lead wire, the second lead wire and the junction box are welded, the device switches from the second working position back to the first working position. The first pressing unit and the second pressing unit, through contact with the first lead-out wire and the second lead-out wire, properly smooth the first lead-out wire and the second lead-out wire again, and ensure the level of the first lead-out wire and the second lead-out wire as much as possible, and also realize the return of the photovoltaic module lead-out wire smoothing device, and then can be used for smoothing the first lead-out wire and the second lead-out wire of the next photovoltaic module, so that the photovoltaic module lead-out wire smoothing device has a high degree of automation, reduces the need for manual intervention, reduces the possibility of operating errors, can efficiently perform the lead-out wire smoothing task, and improves production efficiency, reliability and continuity.

[0031] (3) In the present invention application, by ensuring that the first lead wire and the second lead wire are basically in a horizontal state, the welding quality of the junction box and the lead wire can be improved, and stable welding between the lead wire and the junction box can be ensured, thereby reducing the rework rate and defective rate of photovoltaic modules, improving the quality and reliability of photovoltaic modules, and ultimately improving the market competitiveness of photovoltaic module products, thereby promoting the technological progress and development of the photovoltaic industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the photovoltaic module lead-out line smoothing device, the junction box and the lead-out line applied by the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the junction box and lead wires applied in the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the photovoltaic module lead wire smoothing device applied in the present invention Figure 1 ;

[0035] Figure 4 This is a schematic diagram of the structure of the photovoltaic module lead wire smoothing device applied in the present invention Figure 2 ;

[0036] Figure 5 It is a structural schematic diagram of the photovoltaic module lead-out line smoothing device applied for by the present invention when it is in the first working position;

[0037] Figure 6 It is a schematic structural diagram of the photovoltaic module lead-out line smoothing device applied for by the present invention when in the second working position;

[0038] Figure 7 It is a schematic diagram of the principle of relative movement of the first pressing unit, the second pressing unit, the first lead wire, and the second lead wire of the photovoltaic assembly applied by the present invention;

[0039] Figure 8 It is a schematic flow chart of the photovoltaic module lead-out line smoothing method applied in the present invention;

[0040] Reference numerals:

[0041] The first pressing unit 1-101, the first pressing unit 2-102, the second pressing unit 1-201, the second pressing unit 202; the first extrusion part-1011, the first slider-1012, the first slide rail-1013, the first pressure head part-1014, the second extrusion part-1021, the second slider-1022, the second slide rail-1023, the second pressure head part-1024, the third extrusion part-2011, the third slider-2012, the third slide rail-2013, the third pressure head part-2014, the first horizontal part-301, the second horizontal part-302, the first vertical part-303, the second vertical part-304, the junction box-400, and the mounting plate-B. DETAILED DESCRIPTION

[0042] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0043] In a first aspect, a photovoltaic module lead-out line smoothing device includes: a first pressing unit, a second pressing unit and a transfer unit, wherein the first pressing unit and the second pressing unit are mounted on the transfer unit, and the transfer unit drives the first pressing unit and the second pressing unit to move up and down in a direction away from or close to the photovoltaic module, wherein the first pressing unit includes a first pressing unit 101 and a first pressing unit 102, and the second pressing unit includes a second pressing unit 201 and a second pressing unit 202;

[0044] The photovoltaic module lead-out line smoothing device includes a first working position and a second working position;

[0045] In the first working position, the first pressing unit 101 and the second pressing unit 201 are pressed against the first lead wire together, the first pressing unit 101 and the second pressing unit 201 are close to each other, the first pressing unit 102 and the second pressing unit 202 are pressed against the second lead wire together, and the first pressing unit 102 and the second pressing unit 202 are close to each other;

[0046] In the second working position, the first pressing unit 101 and the second pressing unit 201 are pressed against the first lead wire together, and the first pressing unit 101 and the second pressing unit 201 are away from each other, the first pressing unit 102 and the second pressing unit 202 are pressed against the second lead wire together, and the first pressing unit 102 and the second pressing unit 202 are away from each other;

[0047] In the process of switching from the first working position to the second working position, the transfer unit moves downward toward the photovoltaic module, the first pressing unit 101 presses against the first lead wire, the second pressing unit 201 presses against the first lead wire to smooth the first horizontal portion 301 of the first lead wire, the first pressing unit 102 presses against the second lead wire, and the second pressing unit 202 presses against the second lead wire to smooth the second horizontal portion 302 of the second lead wire;

[0048] During the process of switching from the second working position to the first working position, the transfer unit moves upward in the direction away from the photovoltaic component, the first pressing unit 101 presses against the first lead-out line, the second pressing unit 201 presses and contacts with the first lead-out line to smooth the first horizontal portion 301 of the first lead-out line, the first pressing unit 102 presses against the second lead-out line, and the second pressing unit 202 presses and contacts with the second lead-out line to smooth the second horizontal portion 302 of the second lead-out line.

[0049] In the application of the present invention, firstly, the first pressing unit and the second pressing unit can be installed on the transfer unit through the mounting plate B, and the photovoltaic module lead-out line smoothing device makes the first pressing unit and the second pressing unit press the lead-out line respectively through the up and down lifting movement of the transfer unit, so as to smooth the first lead-out line and the second lead-out line, and ensure the full contact between the first lead-out line and the second lead-out line and the junction box, thereby reducing the occurrence of problems such as cold welding and leaking welding, and reducing the risk of poor welding; in addition, the photovoltaic module lead-out line smoothing device includes a first working position and a second working position, and in the process of switching from the first working position to the second working position, the transfer unit moves downward in the direction close to the photovoltaic module, and the first pressing unit and the second pressing unit can effectively smooth the protrusions or uneven parts of the lead-out line through contact with the first lead-out line and the second lead-out line, and adjust the first lead-out line and the second lead-out line to be basically horizontal, so as to ensure that they are in good contact with the welding pad of the junction box, and after the first lead-out line, the second lead-out line and the junction box are welded, the second working position is switched back to the first working position. During the placement process, the transfer unit moves upward in the direction away from the photovoltaic component, the first pressing unit and the second pressing unit keep in contact with the first lead-out wire and the second lead-out wire, and the first lead-out wire and the second lead-out wire are properly smoothed again to ensure that the first lead-out wire and the second lead-out wire are in a horizontal state as much as possible, and the return of the photovoltaic component lead-out wire smoothing device is also realized at the same time, and then it can be used to smooth the first lead-out wire and the second lead-out wire of the next photovoltaic component, so that the photovoltaic component lead-out wire smoothing device has a high degree of automation, reduces the need for manual intervention, reduces the possibility of manual operation errors, can efficiently perform the lead-out wire smoothing task, and improves production efficiency, reliability and continuity; in addition, by ensuring that the first lead-out wire and the second lead-out wire are basically in a horizontal state, the welding quality of the junction box and the lead-out wire can be improved, and stable welding between the lead-out wire and the junction box can be ensured, which reduces the rework rate and defective rate of photovoltaic components, improves the quality and reliability of photovoltaic components, and ultimately improves the market competitiveness of photovoltaic component products, and promotes the technological progress and development of the photovoltaic industry.

[0050] Optionally, the first pressing unit 101 includes a first extrusion part 1011, a first slider 1012, a first slide rail 1013, and a first pressure head part 1014, the first slider 1012 moves on the first slide rail 1013, the first slider 1012 is connected to the first pressure head part 1014, and the first extrusion part 1011 squeezes the first slider 1012 and the first pressure head part 1014; the first pressing unit 2 102 includes a second extrusion part 1021, a second slider 1022, a second slide rail 1023, and a second pressure head part 1024, the second slider 1022 moves on the second slide rail 1023, the second slider 1022 is connected to the second pressure head part 1024, and the second extrusion part 1021 squeezes the second slider 1022 and the second pressure head part 1024.

[0051] In some embodiments, the first extrusion part 1011 may include a first cylinder, or a first damping hydraulic cylinder, or a first elastic extrusion device, etc. The present invention application may not limit the structural form of the first extrusion part 1011, and any mechanism that can play a pressing role may constitute the scope of protection of the present invention application; the second extrusion part 1021 may include a second cylinder, or a second damping hydraulic cylinder, or a second elastic extrusion device, etc. Similarly, the present invention application may not limit the structural form of the second extrusion part 1021, and any mechanism that can play a pressing role may constitute the scope of protection of the present invention application; the first slider 1012 may be connected to a first connecting rod, and the second slider 1022 may be connected to a first connecting rod. The first extrusion part 1011 can elastically press against the first connecting rod, and the second extrusion part 1021 can elastically press against the first connecting rod, thereby being able to apply a certain pressure to the first slider, the first pressing head part, the second slider, and the second pressing head part, and then the first pressing head part and the second pressing head part can press against the first lead wire and the second lead wire.

[0052] In the present application, firstly, the first pressing unit 101 and the first pressing unit 2 102 both include an extrusion portion, a slider, a slide rail and a pressure head portion, so that the first lead wire and the second lead wire can obtain stable pressure during the process of being pressed and contacted, thereby ensuring that one end of the first lead wire and one end of the second lead wire are in a stable pressed state; in addition, the first slider 1012 and the second slider 1022 can be freely moved on the first slide rail 1013 and the second slide rail 1023 respectively, thereby ensuring the continuity of one end of the first lead wire and one end of the second lead wire in the pressed and contacted state, thereby meeting the subsequent welding requirements of the junction box and the lead wires.

[0053] Optionally, the second pressing unit 201 includes a third extrusion part 2011, a third slider 2012, a third slide rail 2013, and a third pressure head part 2014. The third slider 2012 moves on the third slide rail 2013, the third slider 2012 is connected to the third pressure head part 2014, and the third extrusion part 2011 squeezes the third slider 2012 and the third pressure head part 2014. The second pressing unit 202 includes a fourth extrusion part 2021, a fourth slider 2022, a fourth slide rail 2023, and a fourth pressure head part 2014. The fourth slider 2022 moves on the fourth slide rail 2023, the fourth slider 2022 is connected to the fourth pressure head part 2024, and the fourth extrusion part 2021 squeezes the fourth slider 2022 and the fourth pressure head part 2024.

[0054] In some embodiments, the third extrusion part 2011 may include a third cylinder, or a third damping hydraulic cylinder, or a third elastic extrusion device, etc. The present invention application may not limit the structural form of the third extrusion part 2011, and any mechanism that can play a pressing role may constitute the scope of protection of the present invention application; the fourth extrusion part 2021 may include a fourth cylinder, or a fourth damping hydraulic cylinder, or a fourth elastic extrusion device, etc. Similarly, the present invention application may not limit the structural form of the fourth extrusion part 2021, and any mechanism that can play a pressing role may constitute the scope of protection of the present invention application; the third slider 2012 may be connected to a third connecting rod, and the second slider 2022 may be connected to a fourth connecting rod. The third extrusion part 2011 can elastically press the third connecting rod, and the fourth extrusion part 2021 can elastically press the fourth connecting rod, thereby being able to apply a certain pressure to the third slider, the third pressure head, the fourth slider, and the fourth pressure head, and then the third pressure head and the fourth pressure head can press and contact the first lead wire and the second lead wire.

[0055] In the present application, firstly, the third extrusion part 2011 and the fourth extrusion part 2021 control the pressing of the slider and the pressure head, so that the first lead wire and the second lead wire can obtain stable pressure during the smoothing process, effectively eliminating the protrusions or uneven parts, and reducing the problem of affecting the welding quality of the junction box due to the uneven lead wires; in addition, the third slider 2012 and the fourth slider 2022 can move freely on the third slide rail 2013 and the fourth slide rail 2023 respectively, ensuring the continuity of the first lead wire and the second lead wire in the pressed state, improving the smoothing effect of the lead wires of the photovoltaic module, and meeting the subsequent welding requirements of the junction box and the lead wires.

[0056] Optionally, the first working position is the initial working position of the photovoltaic module lead-out line smoothing device, and the second working position is the working stop position of the photovoltaic module lead-out line smoothing device.

[0057] In the application of the present invention, the first working position is set as the initial working position of the photovoltaic module lead-out line smoothing device. When the photovoltaic module lead-out line smoothing device is started, the first pressing unit and the second pressing unit can quickly cooperate to enter the initial state, laying the foundation for the subsequent smoothing of the photovoltaic module lead-out line; the second working position is set as the working stop position of the photovoltaic module lead-out line smoothing device. During the working process of the photovoltaic module lead-out line smoothing device, when the second working position is the working stop position of the photovoltaic module lead-out line smoothing device, the working stop position may be the photovoltaic module lead-out line smoothing device has not completed the smoothing of the first lead-out line. The middle stop position of the overall smoothing of the lead wire and the second lead wire can meet the actual specific manual smoothing treatment of different parts or states of the lead wire in specific situations. For example, it is necessary to manually handle the specific situation where the horizontal part of the lead wire is too bent; the working stop position can also be the working end position after the photovoltaic module lead wire smoothing device finishes the overall smoothing of the first lead wire and the second lead wire, so that the welding pad of the junction box can be welded to the first lead wire and the second lead wire subsequently. The design of this position improves the working logic and automation level of the photovoltaic module lead wire smoothing device.

[0058] Optionally, in the initial working position, along the first direction, the distance range between the first pressure head 1014 and the third pressure head 2014 is: 0 to 2 mm; the distance range between the second pressure head 1024 and the fourth pressure head 2024 is: 0 to 2 mm; in the working stop position, along the first direction, the distance range between the first pressure head 1014 and the third pressure head 2014 is: greater than or equal to 5 mm; the distance range between the second pressure head 1024 and the fourth pressure head 2024 is: greater than or equal to 5 mm.

[0059] In the present invention, at the initial working position, along the first direction, the distance between the first pressure head 1014 and the third pressure head 2014 is in the range of 0 to 2 mm; the distance between the second pressure head 1024 and the fourth pressure head 2024 is in the range of 0 to 2 mm, which can effectively ensure the position of the first pressing unit and the second pressing unit, and provide a good position basis for the subsequent smoothing of the protrusions or uneven parts of the first lead wire and the second lead wire; at the work stop position, along the first direction, the distance between the first pressure head 1014 and the third pressure head 2014 is in the range of greater than or equal to 5 mm; the distance range between the second pressure head 1024 and the fourth pressure head 2024 is: greater than or equal to 5 mm, which can ensure that most of the length of the first lead-out line and most of the length of the second lead-out line along the first direction are smoothed, and the first lead-out line and the second lead-out line can be basically horizontal to a great extent. Of course, those skilled in the art can adjust the second working position according to actual conditions, and then correspondingly adjust the distance between the first pressure head 1014 and the third pressure head 2014, and the distance between the second pressure head 1024 and the fourth pressure head 2024. The first direction is the X direction.

[0060] Optionally, the first lead-out line includes a first horizontal portion 301 and a first vertical portion 303, the second lead-out line includes a second horizontal portion 302 and a second vertical portion 304, the first pressure head portion 1014 is L-shaped or 7-shaped, the first pressure head portion 1014 includes a horizontal portion 10141 and a vertical portion 10142, the horizontal portion 10141 connects the first slider 1012 and the vertical portion 10142; the second pressure head portion 1024 is L-shaped or 7-shaped, the second pressure head portion 1024 includes a horizontal portion 10241 and a vertical portion 10242, the horizontal portion 10241 connects the second slider 1022 and the vertical portion 10242; the vertical portion 10142 and the vertical portion 10242 respectively press and contact one end of the first horizontal portion 301 close to the first vertical portion 303 and one end of the second horizontal portion 302 close to the second vertical portion 304.

[0061] In the present application, the first pressing head portion 1014 and the second pressing head portion 1024 are L-shaped or 7-shaped pressing head portions, and the vertical portion 10142 and the vertical portion 2 10242 can respectively press against one end of the first horizontal portion 301 close to the first vertical portion 303 and one end of the second horizontal portion 302 close to the second vertical portion 304, thereby reducing the warping or deformation of one end of the first horizontal portion 301 and one end of the second horizontal portion 302, and one end of the first horizontal portion 301 and one end of the second horizontal portion 302 can obtain uniform and stable pressure, thereby ensuring the stability and continuity of one end of the first horizontal portion 301 and one end of the second horizontal portion 302 in the pressed state, and also improving the fit between the subsequent soldering pad of the junction box and the lead wire during welding.

[0062] Optionally, the third pressing head 2014 is L-shaped or 7-shaped, and the third pressing head 2014 includes a horizontal portion 20141 and a vertical portion 20142, and the horizontal portion 20141 connects the third slider 2012 and the vertical portion 20142; the fourth pressing head 2024 is L-shaped or 7-shaped, and the fourth pressing head 2024 includes a horizontal portion 20241 and a vertical portion 20242; the horizontal portion 20241 connects the fourth slider 2022 and the vertical portion 20242;

[0063] In the first working position, the vertical portion three 20142 and the vertical portion four 20242 respectively press and contact one end of the first horizontal portion 301 close to the vertical portion one 10142 and one end of the second horizontal portion 302 close to the vertical portion two 10242, that is, the vertical portion one 10142 of the first pressing unit one 101 and the vertical portion three 10142 of the second pressing unit one 201 are close to each other, and the vertical portion two 10242 of the first pressing unit two 102 and the vertical portion four 20142 of the second pressing unit two 202 are close to each other, that is, it can be correspondingly interpreted or meant that: the first pressing unit one 101 and the second pressing unit one 201 are close to each other, and the first pressing unit two 102 and the second pressing unit two 202 are close to each other; When in the second working position, the vertical portion three 20142 and the vertical portion four 20242 respectively press and contact one end of the first horizontal portion 301 away from the vertical portion one 10142 and one end of the second horizontal portion 302 away from the vertical portion two 10242, that is, the vertical portion one 10142 of the first pressing unit one 101 and the vertical portion three 10142 of the second pressing unit one 201 are away from each other, and the vertical portion two 10242 of the first pressing unit two 102 and the vertical portion four 20142 of the second pressing unit two 202 are away from each other, which can be interpreted or meant accordingly: the first pressing unit one 101 and the second pressing unit one 201 are away from each other, and the first pressing unit two 102 and the second pressing unit two 202 are away from each other.

[0064] In the present application, the third pressure head portion 2014 and the fourth pressure head portion 2024 are L-shaped or 7-shaped pressure head portions, and the vertical portion three 20142 and the vertical portion four 20242 can respectively press against one end of the first horizontal portion 301 close to or far away from the vertical portion one 10142 and one end of the vertical portion two 10242, so that during the process of smoothing the first horizontal portion 301 of the first lead wire and the second horizontal portion 302 of the second lead wire, the first lead wire and the second lead wire can obtain stable and continuous pressure, effectively eliminating protrusions or uneven parts, and effectively reducing the problem of affecting welding quality due to uneven lead wires.

[0065] Optionally, the junction box 400 includes a first through hole and a second through hole, the first lead wire passes through the first through hole and is bent to form a first horizontal portion 301 and a first vertical portion 303 , and the second lead wire passes through the first through hole and is bent to form a second horizontal portion 301 and a second vertical portion 303 .

[0066] In the present application, the junction box 400 includes a first through hole and a second through hole, the first lead wire is bent to form a first horizontal portion 301 and a first vertical portion 303, and the second lead wire is bent to form a second horizontal portion 301 and a second vertical portion 303, which can realize the subsequent welding of the junction box and the lead wire.

[0067] Optionally, when the first working position is switched to the second working position, the transfer unit moves downward in the direction close to the photovoltaic component, and the descending distance formed is H1. Along the first direction, the moving distance of the vertical part three 20142 is S1, and the moving distance of the vertical part four 20242 is S2, satisfying: H1=S1tanθ1=S2tanθ2, wherein 0 degrees<θ1≤90 degrees, 0 degrees<θ2≤90 degrees, θ1 is the angle formed by the third slider and the first direction, and θ2 is the angle formed by the fourth slider and the first direction.

[0068] In the present application, at the initial working position, along the first direction, the vertical portion 20142 is located at one end (point) of the first horizontal portion 301. 1 The vertical portion 20242 is located at one end (point) of the second horizontal portion 302. 2 When the working stop position is the working end position after the photovoltaic module lead wire smoothing device finishes smoothing the first lead wire and the second lead wire as a whole, it means that: when the photovoltaic module lead wire smoothing device finishes smoothing the first lead wire and the second lead wire as a whole and is in the working end position, along the first direction, the vertical portion three 20142 moves away from the other end portion (point) B position of the first horizontal portion 301, and the vertical portion four 20242 moves away from the other end portion (point) C position of the second horizontal portion 302. When the first working position is switched to the second working position, along the first direction X, the moving distance of the vertical portion three 20142 is S1 (that is, along the first direction X, it can be O 1 B is a positive value), the moving distance of the vertical portion 20242 is S2 (i.e., along the first direction X, which can be O 2C is a positive value), the descending distance formed by the transfer unit moving toward the direction close to the photovoltaic component is H1, which can be regarded as the rising distance of the photovoltaic component is H2, H2=H1=S1tanθ1=S2tanθ2, 0 degree<θ1≤90 degree, 0 degree<θ2≤90 degree, θ1 is the angle formed by the third slider and the first direction (can be an acute angle), θ2 is the angle formed by the fourth slider and the first direction (can be an acute angle), preferably, θ1=θ2, correspondingly S1=S2, that is, the second pressing unit 1 and the second pressing unit 2 are symmetrically arranged.

[0069] It should be noted that the first direction X may be the direction in which the first lead wire extends, or the direction in which the second lead wire extends, or the direction in which the short side of the photovoltaic module extends. The direction in which the first lead wire extends is substantially parallel to the direction in which the second lead wire extends.

[0070] However, in the actual operation of the smoothing device, H1 can usually be directly determined, and the moving distance S1 of the vertical portion 3 20142 and the moving distance S2 of the vertical portion 4 20242 will be affected by the thickness of the vertical portion 3 20142 and the vertical portion 4 20242, and the movement of the third slider and the fourth slider, resulting in a certain error in the moving distance S1 of the vertical portion 3 20142 and the moving distance S2 of the vertical portion 4 20242. The applicant discovered the above technical problem and proposed a technical solution to correct the moving distance S1 of the vertical portion 3 20142 and the moving distance S2 of the vertical portion 4 20242.

[0071] Optionally, the photovoltaic module lead-out line smoothing device also includes: a first smoothing coefficient SMC1 and a second smoothing coefficient SMC2. When the first working position is switched to the second working position, the transfer unit moves downward in the direction close to the photovoltaic module to form a descending distance H1. Along the first direction, the actual moving distance of the vertical part three 20142 is SP1, SP1=H1 / tanθ1-P1, and the actual moving distance of the vertical part four 20242 is SP2, SP2=H1 / tanθ2+P2. The first smoothing coefficient SMC1=tanθ1 / tanθ2, and the second smoothing coefficient SMC2=SP1 / SP2 satisfy: |SMC1-SMC2|≤0.2, wherein P1 is the first distance compensation amount, and P2 is the second distance compensation amount. Exemplarily, P1 can be any value between -2mm-2mm (at least it can be understood as including the endpoint value), and P1 can be any value between -2mm-2mm (at least it can be understood as including the endpoint value).

[0072] First, the first smoothing coefficient SMC1 can be set and calculated. The first smoothing coefficient SMC1 can represent the relative size relationship between θ1 and θ2, and will try to make θ1 and θ2 basically equal or with little difference, so as to reduce the disturbance caused by the difference in movement direction between the second pressing unit 1 201 and the second pressing unit 202, and appropriately improve the movement stability of the entire photovoltaic module lead-out line smoothing device; in addition, the second smoothing coefficient SMC2 can be set and calculated. When the first working position is switched to the second working position, the descending distance of the transfer unit toward the direction close to the photovoltaic module is H1. At this time, the actual moving distance of the vertical part three 20142 is H1 / tanθ1-P1, and the actual moving distance of the vertical part four 20242 is H1 / tanθ2+P2.

[0073] In some embodiments, when in the second working position, the first distance compensation amount P1 can be calculated based on the actual position of the vertical portion 30142 at this time and the vertical portion 30142 moves away from the other end portion (point B) of the first horizontal portion 301 or the position of the other end portion (point B) of the first horizontal portion 301, considering that the vertical portion 30142 and the vertical portion 30142 have a certain thickness and the third slider and the fourth slider move. 1 The second distance compensation amount P2 can be calculated based on the actual position of the vertical portion 20242 at this time and the vertical portion 20242 moving away from the other end portion (point C) of the second horizontal portion 302 or the position of the other end portion (point C) of the second horizontal portion 302. 2 Distance compensation is performed at the point position, so as to determine the actual smoothing distance or actual moving distance of the first horizontal part 301 when the vertical part three 20142 moves away from the first horizontal part 301, and the actual smoothing distance or actual moving distance of the second horizontal part 302 when the vertical part four 20242 moves away from the second horizontal part 302.

[0074] In some embodiments, and considering that the vertical portion three 20142 and the vertical portion four 20242 themselves have a certain thickness and the third slider and the fourth slider move, the first distance compensation amount P1 and the second distance compensation amount P2 can also be obtained by theoretical calculation or multiple smoothing and debugging of the actual photovoltaic module smoothing device or simple visual photography or simple distance detection. The first distance compensation amount P1 and the second distance compensation amount P2 can both be positive numbers or 0 or negative numbers. For example, while considering that the vertical portion three 20142 and the vertical portion four 20242 themselves have a certain thickness, the first pressing unit 102 and the second pressing unit 202 can be theoretically calculated or the actual smoothing device is repeatedly smoothed and debugged or a first camera and a second camera are provided to obtain the actual position of the vertical portion three 20142 and the vertical portion three 20142 moving away from the other end portion (point) B position of the first horizontal portion 301 or O in the second working position. 1The distance compensation is performed at the point position to obtain the first distance compensation amount P1, and the actual position of the vertical portion 20242 and the vertical portion 20242 move away from the other end portion (point) C position of the second horizontal portion 302 or O 2 Distance compensation is performed at the point position to obtain a second distance compensation amount P2.

[0075] Therefore, by setting the first distance compensation amount P1 and the second distance compensation amount P2, it is possible to avoid the situation where the actual difference between the smoothing state of the vertical part three 20142 and the smoothing state of the first horizontal part 301 and the vertical part four 20242 and the second horizontal part 302 is too large. The second smoothing coefficient SMC2 can be used to calculate the difference in the actual smoothing conditions of the second pressure unit one and the second pressure unit two, which can be used to judge the stability and reliability of the photovoltaic module smoothing device in long-term operation.

[0076] In the present invention, the first smoothness coefficient SMC1 and the second smoothness coefficient SMC2 satisfy:

[0077] |SMC1-SMC2|≤0.2, thus, the difference in the smoothing states of the first lead-out wire and the second lead-out wire of the vertical part three and the vertical part four can be minimized, so that the smoothing effects of the first lead-out wire and the second lead-out wire are more balanced and consistent, thereby laying a solid foundation for subsequent welding with the junction box and other processes, improving the welding quality and the electrical connection reliability of the photovoltaic module, reducing product failures caused by lead-out wire problems, improving the yield and reliability of photovoltaic module production, and enhancing the overall performance and market competitiveness of photovoltaic module products.

[0078] In some embodiments, the photovoltaic module lead-out line smoothing device may further include: a third smoothing coefficient SMC3, SMC3 = ||P1|-|P2|| / (|P1|+|P2|), satisfying: 0≤SMC3≤0.2, so as to avoid the first distance compensation amount P1 and the second distance compensation amount P2 being too different, and to minimize the difference in the smoothing state of the first lead-out line and the second lead-out line between the vertical part three and the vertical part four, which can be further used for the stability and reliability judgment of the photovoltaic module smoothing device during long-term operation. Of course, in some embodiments, a total smoothing coefficient SMC may also be included, SMC = SMC1 / SMC2+SMC3-1, and the total smoothing coefficient SMC may satisfy SMC≤0.2, so as to comprehensively consider the smoothing after long-term operation and the stability and reliability judgment of the photovoltaic module smoothing device during long-term operation.

[0079] Optionally, the photovoltaic module lead-out line smoothing device also includes: a control unit, which calculates a first smoothing coefficient SMC1 and a second smoothing coefficient SMC2. When |SMC1-SMC2|≤0.2, the control unit operates normally, and when |SMC1-SMC2|>0.2, the control unit issues a reminder.

[0080] In the present invention application, the introduction of the control unit realizes the intelligent monitoring and management of the first smoothing coefficient SMC1 and the second smoothing coefficient SMC2. When |SMC1-SMC2|≤0.2 (or SMC≤0.2), it indicates that the photovoltaic module lead wire smoothing device operates normally, and the control unit ensures that each component cooperates efficiently according to the established procedures, ensuring that the lead wire smoothing effect is good and stable, providing a reliable basis for subsequent welding; and when

[0081] When |SMC1-SMC2|>0.2 (or SMC>0.2), the control unit will issue a prompt reminder, so that the operator can quickly detect the abnormal operation of the photovoltaic module lead wire smoothing device, check the problem in time, reduce the difference in the smoothing degree of the lead wire, and ensure the stability and reliability of the photovoltaic module smoothing device in long-term operation.

[0082] In a second aspect, the present invention provides a photovoltaic module lead wire smoothing method, which adopts or does not adopt any photovoltaic module lead wire smoothing device described in the first aspect, comprising:

[0083] Step S100, in the first working position, the first pressing unit 101 and the second pressing unit 201 are pressed against the first lead wire together, the first pressing unit 101 and the second pressing unit 201 are close to each other, the first pressing unit 102 and the second pressing unit 202 are pressed against the second lead wire together, and the first pressing unit 102 and the second pressing unit 202 are close to each other;

[0084] Step S200, the transfer unit moves downward in a direction close to the photovoltaic module, the first pressing unit 101 presses against the first lead wire, the second pressing unit 201 presses against the first lead wire to smooth the first horizontal portion 301 of the first lead wire, the first pressing unit 102 presses against the second lead wire, the second pressing unit 202 presses against the second lead wire to smooth the second horizontal portion 302 of the second lead wire, so as to switch from the first working position to the second working position;

[0085] Step S300, when in the second working position, the first pressing unit 101 and the second pressing unit 201 press against the first lead wire together, the first pressing unit 101 and the second pressing unit 201 are away from each other, the first pressing unit 102 and the second pressing unit 202 press against the second lead wire together, and the first pressing unit 102 and the second pressing unit 202 are away from each other.

[0086] In the present application, firstly, the photovoltaic module lead wire smoothing device includes a first working position and a second working position. In the process of switching from the first working position to the second working position, the transfer unit moves downward in the direction close to the photovoltaic module, and the first pressing unit and the second pressing unit are in contact with the first lead wire and the second lead wire respectively, which can effectively smooth the raised parts of the lead wires, adjust the first lead wire and the second lead wire to be basically horizontal, ensure that they are in good contact with the welding pad of the junction box, and subsequently the first lead wire, the second lead wire and the junction box can be welded; in addition, by ensuring that the first lead wire and the second lead wire are basically horizontal, the welding quality of the junction box and the lead wire can be improved, and stable welding between the lead wire and the junction box can be ensured, thereby reducing the rework rate and defective rate of photovoltaic modules, improving the quality and reliability of photovoltaic modules, and ultimately improving the market competitiveness of photovoltaic module products, and promoting the technological progress and development of the photovoltaic industry.

[0087] Optionally, the first working position is the initial working position of the photovoltaic module lead-out line smoothing device, and the second working position is the working stop position of the photovoltaic module lead-out line smoothing device.

[0088] In the application of the present invention, similarly, the first working position is set as the initial working position of the photovoltaic module lead-out line smoothing device. When the photovoltaic module lead-out line smoothing device is started, the first pressing unit and the second pressing unit can quickly work together to enter the initial state, laying the foundation for the subsequent smoothing of the photovoltaic module lead-out line; the second working position is set as the working stop position of the photovoltaic module lead-out line smoothing device. During the working process of the photovoltaic module lead-out line smoothing device, when the second working position is the working stop position of the photovoltaic module lead-out line smoothing device, the working stop position may be the photovoltaic module lead-out line smoothing device that has not completed smoothing the first The middle stop position for the overall smoothing of the lead-out wire and the second lead-out wire can meet the actual needs of performing specific manual smoothing treatments on different parts or states of the lead-out wires in specific situations. For example, in specific situations where the horizontal part of the lead-out wire needs to be manually smoothed due to excessive bending; the working stop position can also be the working end position after the photovoltaic module lead-out wire smoothing device finishes smoothing the first lead-out wire and the second lead-out wire as a whole, so that the welding pad of the junction box can be welded to the first lead-out wire and the second lead-out wire subsequently. The design of such a position improves the working logic and automation level of the photovoltaic module lead-out wire smoothing device.

[0089] Optionally, in the initial working position, along the first direction, the distance range between the first pressure head 1014 and the third pressure head 2014 is: 0 to 2 mm; the distance range between the second pressure head 1024 and the fourth pressure head 2024 is: 0 to 2 mm; in the working stop position, along the first direction, the distance range between the first pressure head 1014 and the third pressure head 2014 is: greater than or equal to 5 mm; the distance range between the second pressure head 1024 and the fourth pressure head 2024 is: greater than or equal to 5 mm.

[0090] In the present application, firstly, at the initial working position, the distances between the first pressing head 1014 and the third pressing head 2014, and between the second pressing head 1024 and the fourth pressing head 2024 are both in the range of 0 to 2 mm, which can effectively ensure the positions of the first pressing unit and the second pressing unit, and provide a good position basis for the subsequent smoothing of the protrusions or uneven parts of the first lead wire and the second lead wire; in addition, at the working stop position, the distance between the pressing heads is greater than or equal to 5 mm, which can ensure that most of the length of the first lead wire and most of the length of the second lead wire along the first direction are smoothed, and the first lead wire and the second lead wire can be made basically horizontal to a great extent, ensuring that the first lead wire and the second lead wire are in good contact with the welding pad of the junction box.

[0091] Optionally, in step S100 and step S300, the vertical portion 10142 of the first pressing unit 101 and the vertical portion 10242 of the first pressing unit 102 respectively press and contact one end of the first horizontal portion 301 close to the first vertical portion 303 and one end of the second horizontal portion 302 close to the second vertical portion 304;

[0092] In step S100, the vertical portion three 20142 of the second pressing unit one 201 and the vertical portion four 20242 of the second pressing unit two 202 respectively press and contact one end of the first horizontal portion 301 close to the vertical portion one 10142 and one end of the second horizontal portion 302 close to the vertical portion two 10242; in step S300, the vertical portion three 20142 of the second pressing unit one 201 and the vertical portion four 20242 of the second pressing unit two 202 respectively press and contact one end of the first horizontal portion 301 away from the vertical portion one 10142 and one end of the second horizontal portion 302 away from the vertical portion two 10242.

[0093] In the present application, the vertical portion 10142 of the first pressing unit 101 and the vertical portion 10242 of the first pressing unit 102 respectively press and contact one end of the first horizontal portion 301 close to the first vertical portion 303 and one end of the second horizontal portion 302 close to the second vertical portion 304, so that one end of the first horizontal portion 301 and one end of the second horizontal portion 302 can obtain uniform and stable pressure, thereby ensuring that one end of the first horizontal portion 301 and one end of the second horizontal portion 302 are in a pressing state. The stability and continuity of the state are improved, and the fit between the lead wire and the pad of the junction box is improved; at the same time, during the movement of the vertical portion three 20142 of the second pressing unit one 201 and the vertical portion four 20242 of the second pressing unit two 202 along the first direction, the first horizontal portion 301 of the first lead wire and the second horizontal portion 302 of the second lead wire can be smoothed, and the first lead wire and the second lead wire can obtain stable and continuous pressure, which effectively eliminates the protrusions or uneven parts of the first lead wire and the second lead wire.

[0094] Optionally, the photovoltaic module lead wire smoothing method further includes: step S400, the second working position is the working stop position of the photovoltaic module lead wire smoothing device, when in the working stop position, entering the junction box and the first lead wire, the second lead wire welding process.

[0095] In the application of the present invention, first, the work stop position can be set as the node for entering the welding process. At this time, the lead-out wire has completed the smoothing process under the action of the photovoltaic module lead-out wire smoothing device and is in a relatively ideal state. The first lead-out wire and the second lead-out wire can be in close and stable contact with the welding pad of the junction box, which provides a good foundation for the welding of the lead-out wire and the junction box, thereby effectively improving the welding quality and reducing problems such as cold welding and leaking welding. In addition, the process sequence design of step S400 can also make the entire photovoltaic module production process more smoothly connected, improve the production efficiency and pass rate of the entire photovoltaic module, and is conducive to large-scale and continuous efficient production of photovoltaic modules.

[0096] Optionally, step S400 also includes step S500, in which the transfer unit moves upward in a direction away from the photovoltaic component, the first pressing unit 101 presses against the first lead-out line, the second pressing unit 201 presses against the first lead-out line to smooth the first horizontal portion 301 of the first lead-out line, the first pressing unit 102 presses against the second lead-out line, and the second pressing unit 202 presses against the second lead-out line to smooth the second horizontal portion 302 of the second lead-out line, so as to switch the second working position to the first working position.

[0097] In the application of the present invention, the transfer unit descends toward the direction approaching the photovoltaic component. In the process of switching from the first working position to the second working position, the first pressing unit and the second pressing unit can smooth the first lead wire and the second lead wire by contacting with the first lead wire and the second lead wire, and ensure that the first lead wire and the second lead wire are basically in a horizontal state as much as possible; when in the second working position, the transfer unit rises in the direction away from the photovoltaic component. In the process of switching from the second working position to the first working position, the first pressing unit and the second pressing unit can properly smooth the first lead wire and the second lead wire again by contacting with the first lead wire and the second lead wire, and ensure that the first lead wire and the second lead wire are basically in a horizontal state as much as possible, and at the same time, the return of the photovoltaic component lead wire smoothing device is also realized, and then it can be used for smoothing the first lead wire and the second lead wire of the next photovoltaic component, so that the photovoltaic component lead wire smoothing device has a high degree of automation, reduces the need for manual intervention, reduces the possibility of manual operation errors, can efficiently perform the lead wire smoothing task, and improves production efficiency, reliability and continuity.

[0098] Optionally, in step S200 and step S500, the vertical portion three 20142 of the second pressing unit one 201 moves at least along the first direction, and the vertical portion three 20142 of the second pressing unit one 201 presses and contacts with the first horizontal portion 301 of the first lead-out line to smooth the first horizontal portion 301 of the first lead-out line; the vertical portion four 20242 of the second pressing unit two 202 moves at least along the first direction, and the vertical portion four 20242 of the second pressing unit two 202 presses and contacts with the second horizontal portion 302 of the second lead-out line to smooth the second horizontal portion 302 of the second lead-out line.

[0099] In the present application, when in the first working position, the vertical portion three 20142 and the vertical portion four 20242 respectively press and contact one end of the first horizontal portion 301 close to the vertical portion one 10142 and one end of the second horizontal portion 302 close to the vertical portion two 10242, that is, the vertical portion one 10142 of the first pressing unit one 101 and the vertical portion three 10142 of the second pressing unit one 201 are close to each other, and the vertical portion two 10242 of the first pressing unit two 102 and the vertical portion four 20142 of the second pressing unit two 202 are close to each other, that is, it can be correspondingly interpreted or meant that: the first pressing unit one 101 and the second pressing unit one 201 are close to each other, and the first pressing unit two 102 and the second pressing unit two 202 are close to each other. close to each other; when in the second working position, the vertical portion three 20142 and the vertical portion four 20242 respectively press and contact one end of the first horizontal portion 301 away from the vertical portion one 10142 and one end of the second horizontal portion 302 away from the vertical portion two 10242, that is, the vertical portion one 10142 of the first pressing unit one 101 and the vertical portion three 10142 of the second pressing unit one 201 are away from each other, and the vertical portion two 10242 of the first pressing unit two 102 and the vertical portion four 20142 of the second pressing unit two 202 are away from each other, that is, it can be correspondingly interpreted or meant: the first pressing unit one 101 and the second pressing unit one 201 are away from each other, and the first pressing unit two 102 and the second pressing unit two 202 are away from each other.

[0100] In the application of the present invention, in the process of switching from the first working position to the second working position, the first lead-out line and the second lead-out line are smoothed, or, in the process of switching from the second working position to the first working position, the first lead-out line and the second lead-out line are smoothed twice, and finally the first lead-out line and the second lead-out line are ensured to be basically in a horizontal state as much as possible, and the return of the photovoltaic module lead-out line smoothing device is also realized, which can then be used for the smoothing of the first lead-out line and the second lead-out line of the next photovoltaic module. The automated return and circulation working mechanism greatly improves the production efficiency of the entire photovoltaic module production line, reduces the pause and waiting time in the production process, reduces the demand and cost of manual intervention, provides reliable technical support and guarantee for large-scale and continuous photovoltaic module production, improves the quality and reliability of photovoltaic modules, and ultimately improves the market competitiveness of photovoltaic module products, and promotes the technological progress and development of the photovoltaic industry.

[0101] Optionally, in step S200, when the first working position is switched to the second working position, the transfer unit moves downward in the direction close to the photovoltaic component, and the descending distance formed is H1. Along the first direction, the moving distance of the vertical part three 20142 is S1, and the moving distance of the vertical part four 20242 is S2, satisfying: H1=S1tanθ1=S2tanθ2, wherein 0 degrees<θ1≤90 degrees, 0 degrees<θ2≤90 degrees, θ1 is the angle formed by the third slider and the first direction, and θ2 is the angle formed by the fourth slider and the first direction.

[0102] In the present application, at the initial working position, along the first direction, the vertical portion 20142 is located at one end (point) of the first horizontal portion 301. 1 The vertical portion 20242 is located at one end (point) of the second horizontal portion 302. 2 When the working stop position is the working end position after the photovoltaic module lead wire smoothing device finishes smoothing the first lead wire and the second lead wire as a whole, it means that: when the photovoltaic module lead wire smoothing device finishes smoothing the first lead wire and the second lead wire as a whole and is in the working end position, along the first direction, the vertical portion three 20142 moves away from the other end portion (point) B position of the first horizontal portion 301, and the vertical portion four 20242 moves away from the other end portion (point) C position of the second horizontal portion 302. When the first working position is switched to the second working position, along the first direction X, the moving distance of the vertical portion three 20142 is S1 (that is, along the first direction X, O 1 The moving distance of the vertical portion 20242 is S2 (i.e., along the first direction X, O 2 C's length), the descending distance formed by the transfer unit moving toward the direction close to the photovoltaic component is H1, which can be regarded as the rising distance of the photovoltaic component is H2, H2=H1=S1tanθ1=S2tanθ2, 0 degree<θ1≤90 degree, 0 degree<θ2≤90 degree, θ1 is the angle formed by the third slider and the first direction (can be an acute angle), θ2 is the angle formed by the fourth slider and the first direction (can be an acute angle), preferably, θ1=θ2, correspondingly S1=S2, that is, the second pressing unit 1 and the second pressing unit 2 are symmetrically arranged.

[0103] However, in actual process, H1 can usually be determined, and the moving distance S1 of the vertical part 3 20142 and the moving distance S2 of the vertical part 4 20242 will be affected by the thickness of the vertical part 3 20142 and the vertical part 4 20242, and the movement of the third slider and the fourth slider, resulting in a certain error in the moving distance S1 of the vertical part 3 20142 and the moving distance S2 of the vertical part 4 20242. The applicant discovered the above technical problem and proposed a technical solution to correct the moving distance S1 of the vertical part 3 20142 and the moving distance S2 of the vertical part 4 20242.

[0104] Optionally, the method for smoothing the lead-out lines of a photovoltaic module also includes: a first smoothing coefficient SMC1 and a second smoothing coefficient SMC2. When the first working position is switched to the second working position, the transfer unit moves downward in a direction close to the photovoltaic module to form a descending distance H1. Along the first direction, the actual moving distance of the vertical portion three 20142 is SP1, SP1=H1 / tanθ1-P1, and the actual moving distance of the vertical portion four 20242 is SP2, SP2=H1 / tanθ2+P2. The first smoothing coefficient SMC1=tanθ1 / tanθ2, and the second smoothing coefficient SMC2=SP1 / SP2, satisfying: |SMC1-SMC2|≤0.2, wherein P1 is the first distance compensation amount, and P2 is the second distance compensation amount.

[0105] In some embodiments, a first smoothing coefficient SMC1 can be set and calculated. The first smoothing coefficient SMC1 can represent the relative size relationship between θ1 and θ2, and will try to make θ1 and θ2 basically equal or with little difference, so as to reduce the disturbance caused by the difference in movement direction between the second pressing unit 1 201 and the second pressing unit 202, and appropriately improve the movement stability of the entire photovoltaic module lead-out line smoothing device; in addition, a second smoothing coefficient SMC2 can be set and calculated. When the first working position is switched to the second working position, the descending distance of the transfer unit toward the direction close to the photovoltaic module is H1. At this time, the actual moving distance of the vertical part three 20142 is H1 / tanθ1-P1, and the actual moving distance of the vertical part four 20242 is H1 / tanθ2+P2.

[0106] In some embodiments, when in the second working position, the first distance compensation amount P1 can be calculated based on the actual position of the vertical portion 30142 at this time and the vertical portion 30142 moves away from the other end portion (point B) of the first horizontal portion 301 or the position of the other end portion (point B) of the first horizontal portion 301, considering that the vertical portion 30142 and the vertical portion 30142 have a certain thickness and the third slider and the fourth slider move. 1The second distance compensation amount P2 can be calculated based on the actual position of the vertical portion 20242 at this time and the vertical portion 20242 moving away from the other end portion (point C) of the second horizontal portion 302 or the position of the other end portion (point C) of the second horizontal portion 302. 2 Distance compensation is performed at the point position, so as to determine the actual smoothing distance or actual moving distance of the first horizontal part 301 when the vertical part three 20142 moves away from the first horizontal part 301, and the actual smoothing distance or actual moving distance of the second horizontal part 302 when the vertical part four 20242 moves away from the second horizontal part 302.

[0107] In some embodiments, and considering that the vertical portion three 20142 and the vertical portion four 20242 themselves have a certain thickness and the third slider and the fourth slider move, the first distance compensation amount P1 and the second distance compensation amount P2 can also be obtained by theoretical calculation or multiple smoothing adjustments of the actual smoothing device or simple visual photography or simple distance detection. The first distance compensation amount P1 and the second distance compensation amount P2 can both be positive numbers, zero or negative numbers. For example, while considering that the vertical portion three 20142 and the vertical portion four 20242 themselves have a certain thickness, the first pressing unit 102 and the second pressing unit 202 can be theoretically calculated or multiple smoothing adjustments of the actual smoothing device or be provided with a first camera and a second camera to obtain the actual position of the vertical portion three 20142 at the second working position and the vertical portion three 20142 moving away from the other end portion (point) B position of the first horizontal portion 301 or O 1 The distance compensation is performed at the point position to obtain the first distance compensation amount P1, and the actual position of the vertical portion 20242 and the vertical portion 20242 move away from the other end portion (point) C position of the second horizontal portion 302 or O 2 Distance compensation is performed at the point position to obtain a second distance compensation amount P2.

[0108] Therefore, after the first distance compensation amount P1 and the second distance compensation amount P2 are set, the setting of the first distance compensation amount P1 and the second distance compensation amount P2 can avoid the situation where the difference between the actual smoothing state of the vertical part three 20142 and the first horizontal part 301 and the smoothing state of the vertical part four 20242 and the second horizontal part 302 is too large. The second smoothing coefficient SMC2 can be used to calculate the difference in the actual smoothing conditions of the second pressing unit one and the second pressing unit two, which can be used to judge the stability and reliability of the photovoltaic module smoothing device in long-term operation.

[0109] In the present invention, the first smoothness coefficient SMC1 and the second smoothness coefficient SMC2 satisfy:

[0110] |SMC1-SMC2|≤0.2, thus, the difference in the smoothing states of the first lead-out wire and the second lead-out wire of the vertical part three and the vertical part four can be minimized, so that the smoothing effects of the first lead-out wire and the second lead-out wire are more balanced and consistent, thereby laying a solid foundation for subsequent welding with the junction box and other processes, improving the welding quality and the electrical connection reliability of the photovoltaic module, reducing product failures caused by lead-out wire problems, improving the yield and reliability of photovoltaic module production, and enhancing the overall performance and market competitiveness of photovoltaic module products.

[0111] In some embodiments, the photovoltaic module lead-out line smoothing method may further include: a third smoothing coefficient SMC3, SMC3 = ||P1|-|P2|| / (|P1|+|P2|), satisfying: 0≤SMC3≤0.2, so as to avoid the first distance compensation amount P1 and the second distance compensation amount P2 being too different, and to minimize the difference in the smoothing state of the first lead-out line and the second lead-out line between the vertical part three and the vertical part four, which may be further used for the stability and reliability judgment of the photovoltaic module smoothing device during long-term operation. Of course, in some embodiments, a total smoothing coefficient SMC may also be included, SMC = SMC1 / SMC2+SMC3-1, and the total smoothing coefficient SMC may satisfy SMC≤0.2, so as to comprehensively consider the smoothing after long-term operation and the stability and reliability judgment of the photovoltaic module smoothing device during long-term operation.

[0112] Optionally, the photovoltaic module lead wire smoothing method also includes: in step S300, calculating a first smoothing coefficient SMC1 and a second smoothing coefficient SMC2, and when |SMC1-SMC2|≤0.2, operating normally, and when |SMC1-SMC2|>0.2, issuing a reminder.

[0113] In the present application, by monitoring the first smoothing coefficient SMC1 and the second smoothing coefficient SMC2, when |SMC1-SMC2|≤0.2 (or SMC≤0.2), it indicates that the photovoltaic module lead-out line smoothing device operates normally, and all components of the photovoltaic module lead-out line smoothing device cooperate efficiently according to the established procedures, and the lead-out line smoothing effect is good and stable, providing a reliable basis for subsequent welding; and when |SMC1-SMC2|>0.2 (or SMC>0.2), a reminder is issued in time, so that the operator can quickly detect the abnormal operation of the photovoltaic module lead-out line smoothing device, promptly troubleshoot technical problems, reduce the risk of smoothing differences of the lead-out lines, and ensure the stability and reliability of the photovoltaic module smoothing device in long-term operation.

[0114] 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.

[0115] Those skilled in the art can understand that the various operations, methods, steps, measures, and schemes in the process discussed in the present application can be alternated, changed, combined, or deleted; further, the various operations, methods, and other steps, measures, and schemes in the process discussed in the present application can also be alternated, changed, rearranged, decomposed, combined, or deleted; further, the various operations, methods, and steps, measures, and schemes in the prior art that are similar to those disclosed in the present application can also be alternated, changed, rearranged, decomposed, combined, or deleted;

[0116] The above-described embodiments only express several implementation methods of the embodiments of the present disclosure, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the embodiments of the present disclosure. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the embodiments of the present disclosure, which all belong to the protection scope of the embodiments of the present disclosure. Therefore, the protection scope of the embodiments of the present disclosure shall be based on the attached claims.

Claims

1. A photovoltaic module lead-out line smoothing device, comprising: A first pressing unit, a second pressing unit and a transfer unit, wherein the first pressing unit and the second pressing unit are mounted on the transfer unit, and the transfer unit drives the first pressing unit and the second pressing unit to move up and down in a direction away from or close to the photovoltaic component, wherein the first pressing unit includes a first pressing unit 1 and a first pressing unit 2, and the second pressing unit includes a second pressing unit 1 and a second pressing unit; The photovoltaic module lead-out line smoothing device includes a first working position and a second working position; In the first working position, the first pressing unit 1 and the second pressing unit 1 press against the first lead wire together, the first pressing unit 1 and the second pressing unit 1 are close to each other, the first pressing unit 2 and the second pressing unit 2 press against the second lead wire together, and the first pressing unit 2 and the second pressing unit 2 are close to each other; In the second working position, the first pressing unit 1 and the second pressing unit 1 press against the first lead wire together, the first pressing unit 1 and the second pressing unit 1 are away from each other, the first pressing unit 2 and the second pressing unit 2 press against the second lead wire together, the first pressing unit 2 and the second pressing unit 2 are away from each other; In the process of switching from the first working position to the second working position, the transfer unit moves downward in a direction close to the photovoltaic assembly, the first pressing unit 1 presses against the first lead-out line, the second pressing unit 1 presses against the first lead-out line to smooth the first horizontal portion of the first lead-out line, the first pressing unit 2 presses against the second lead-out line, and the second pressing unit 2 presses against the second lead-out line to smooth the second horizontal portion of the second lead-out line; During the process of switching from the second working position to the first working position, the transfer unit moves upward in the direction away from the photovoltaic component, the first pressing unit 1 presses against the first lead-out line, the second pressing unit 1 presses against the first lead-out line to smooth the first horizontal portion of the first lead-out line, the first pressing unit 2 presses against the second lead-out line, and the second pressing unit 2 presses against the second lead-out line to smooth the second horizontal portion of the second lead-out line.

2. A photovoltaic module lead wire smoothing device according to claim 1, characterized in that: The first pressing unit 1 includes a first extrusion part, a first slider, a first slide rail, and a first pressing head part. The first slider moves on the first slide rail, the first slider is connected to the first pressing head part, and the first extrusion part squeezes the first slider and the first pressing head part; the first pressing unit 2 includes a second extrusion part, a second slider, a second slide rail, and a second pressing head part. The second slider moves on the second slide rail, the second slider is connected to the second pressing head part, and the second extrusion part squeezes the second slider and the second pressing head part.

3. A photovoltaic module lead wire smoothing device according to claim 2, characterized in that: The second pressing unit 1 includes a third extrusion part, a third slider, a third slide rail, and a third pressing head part. The third slider moves on the third slide rail, the third slider is connected to the third pressing head part, and the third extrusion part squeezes the third slider and the third pressing head part. The second pressing unit 2 includes a fourth extrusion part, a fourth slider, a fourth slide rail, and a fourth pressing head part. The fourth slider moves on the fourth slide rail, the fourth slider is connected to the fourth pressing head part, and the fourth extrusion part squeezes the fourth slider and the fourth pressing head part.

4. A photovoltaic module lead wire smoothing device according to claim 3, characterized in that: The first extrusion part includes a first cylinder, the second extrusion part includes a second cylinder, the third extrusion part includes a third cylinder, and the fourth extrusion part includes a fourth cylinder. The first working position is the initial working position of the photovoltaic module lead wire smoothing device, and the second working position is the working stop position of the photovoltaic module lead wire smoothing device.

5. A photovoltaic module lead wire smoothing device according to claim 4, characterized in that: The first lead-out line includes a first horizontal portion and a first vertical portion, the second lead-out line includes a second horizontal portion and a second vertical portion, the first pressure head portion is L-shaped or 7-shaped, the first pressure head portion includes a horizontal portion 1 and a vertical portion 1, the horizontal portion 1 connects the first slider and the vertical portion 1; the second pressure head portion is L-shaped or 7-shaped, the second pressure head portion includes a horizontal portion 2 and a vertical portion 2, the horizontal portion 2 connects the second slider and the vertical portion 2; the vertical portion 1 and the vertical portion 2 respectively press and contact one end of the first horizontal portion close to the first vertical portion and one end of the second horizontal portion close to the second vertical portion.

6. A photovoltaic module lead wire smoothing device according to claim 5, characterized in that: The third pressing head is L-shaped or 7-shaped, and the third pressing head includes a horizontal part three and a vertical part three, and the horizontal part three connects the third slider and the vertical part three; the fourth pressing head is L-shaped or 7-shaped, and the fourth pressing head includes a horizontal part four and a vertical part four; the horizontal part four connects the fourth slider and the vertical part four; In the first working position, vertical part three and vertical part four respectively press and contact one end of the first horizontal part close to vertical part one and one end of the second horizontal part close to vertical part two; in the second working position, vertical part three and vertical part four respectively press and contact one end of the first horizontal part away from vertical part one and one end of the second horizontal part away from vertical part two.

7. A photovoltaic module lead wire smoothing method, which uses a photovoltaic module lead wire smoothing device as described in any one of claims 1 to 6, characterized in that: The steps include: Step S100, in the first working position, the first pressing unit 1 and the second pressing unit 1 are pressed against the first lead wire together, the first pressing unit 1 and the second pressing unit 1 are close to each other, the first pressing unit 2 and the second pressing unit 2 are pressed against the second lead wire together, and the first pressing unit 2 and the second pressing unit 2 are close to each other; Step S200, the transfer unit moves downward in a direction close to the photovoltaic module, the first pressing unit 1 presses against the first lead wire, the second pressing unit 1 presses against the first lead wire to smooth the first horizontal portion of the first lead wire, the first pressing unit 2 presses against the second lead wire, the second pressing unit 2 presses against the second lead wire to smooth the second horizontal portion of the second lead wire, so as to switch from the first working position to the second working position; Step S300, when in the second working position, the first pressing unit 1 and the second pressing unit 1 jointly press against the first lead-out line, the first pressing unit 1 and the second pressing unit 1 are away from each other, the first pressing unit 2 and the second pressing unit 2 jointly press against the second lead-out line, the first pressing unit 2 and the second pressing unit 2 are away from each other.

8. A photovoltaic module lead-out line smoothing method according to claim 7, characterized in that: The first working position is the initial working position of the photovoltaic module lead-out line smoothing device, and the second working position is the working stop position of the photovoltaic module lead-out line smoothing device.

9. A photovoltaic module lead-out line smoothing method according to claim 8, characterized in that: The methods for smoothing the lead wires of photovoltaic modules also include: Step S400, the second working position is the working stop position of the photovoltaic module lead wire smoothing device. When it is in the working stop position, the junction box and the first lead wire and the second lead wire welding process are started.

10. A photovoltaic module lead wire smoothing method according to claim 9, characterized in that: Step S400 also includes step S500, in which the transfer unit moves upward in the direction away from the photovoltaic component, the first pressing unit presses against the first lead-out line, the second pressing unit presses against the first lead-out line to smooth the first horizontal portion of the first lead-out line, the first pressing unit presses against the second lead-out line, and the second pressing unit presses against the second lead-out line to smooth the second horizontal portion of the second lead-out line, so as to realize the switching from the second working position to the first working position.

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