Welding device and welding system

Abstract

The application relates to a welding device and a welding system. The welding device comprises a support member, a driving member and a hot-pressing member. The support member has a support surface for carrying a photovoltaic module, and the support surface is provided with a limiting space for arranging a connecting piece; the driving member is used for driving the connecting piece to move into contact with the photovoltaic module; and the hot-pressing member is used for hot-pressing the connecting piece and the photovoltaic module. The limiting space is used for limiting a solder strip, so that the solder strip is aligned with a welding position on the photovoltaic module. The driving member can accurately control the moving path and position of the solder strip, so that the solder strip can accurately reach a preset welding position, and the offset of the solder strip is reduced. The hot-pressing member applies uniform pressure and heat, so that the solder strip remains stable during the process of being connected with the welding spot, and the offset is reduced. Therefore, by arranging the limiting space on the support member, and additionally arranging the driving member and the hot-pressing member, the offset of the solder strip during the connection of the solder strip is reduced, and the connection quality of the solder strip is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module processing technology, and in particular to a welding apparatus and welding system. Background Technology

[0002] In the processing and repair of photovoltaic modules, solder ribbons need to be welded onto the modules. Because the solder ribbons are relatively long and need to weld multiple points on the cells simultaneously, they are prone to misalignment during the welding process, affecting the welding quality.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] Therefore, it is necessary to provide a welding device and welding system to address the problem that the welding strip is prone to shifting during the welding process, which affects the welding quality.

[0005] In a first aspect, a welding apparatus includes:

[0006] A support member having a support surface for supporting photovoltaic modules, the support surface having a limiting space for accommodating connectors;

[0007] A driving component, the driving component being used to drive the connector to move to contact the photovoltaic module;

[0008] A hot-pressing component is used to hot-press the connector and the photovoltaic module.

[0009] In one embodiment, the support surface is recessed with a limiting groove that extends along a first direction. The connector is at least partially located outside the limiting groove along the first direction. The driving member is connected to the support member and located outside the limiting groove. The driving member is used to drive the connector to move along the thickness direction of the support member to contact the photovoltaic module. The first direction intersects the thickness direction of the support member.

[0010] In one embodiment, the driving member includes an inner tube and an outer tube, the inner tube being movably inserted inside the outer tube, the outer tube being connected to the support member and located outside the limiting groove, and the inner tube being controlled to extend out of the outer tube to push the connector along the thickness direction of the support member to contact the photovoltaic module.

[0011] In one embodiment, the driving member further includes a lifting member disposed at one end of the inner tube along the thickness direction of the supporting member, and the projected area of ​​the lifting member along the thickness direction of the supporting member is larger than the projected area of ​​the inner tube.

[0012] In one embodiment, the support member is further provided with a mounting through hole along its own thickness direction. The mounting through hole is connected to the limiting groove. The main body of the driving member is disposed in the mounting through hole, and the driving end of the driving member can be movably inserted through the mounting through hole.

[0013] In one embodiment, the support member includes a support platform and a heating base. The heating base is connected to the bottom of the support platform. The support platform has the support surface. The mounting through hole includes a first mounting through hole and a second mounting through hole that are connected to each other. The first mounting through hole is connected to the limiting groove. The support platform has the first mounting through hole through it along its own thickness direction. The heating base has the second mounting through hole. The heating base is used to heat the drive member.

[0014] In one embodiment, the support surface is further recessed with a movable groove, one end of the limiting groove along the first direction is connected to the movable groove, the mounting through hole is located at the bottom of the movable groove, and the driving end of the driving member is movably inserted through the mounting through hole and the movable groove.

[0015] In one embodiment, the movable groove extends along a second direction, and on at least one side along the first direction, both the limiting groove and the mounting through hole include a plurality of holes spaced apart along the second direction. The mounting through holes are provided in a one-to-one correspondence with the limiting groove. The second direction, the thickness direction of the supporting member, and the first direction intersect each other, and the three are not coplanar.

[0016] In one embodiment, the supporting surface is provided with a limiting structure for abutting against the edge of the photovoltaic module.

[0017] In a second aspect, a welding system includes a welding apparatus and a connector as described in the first aspect, the connector being disposed within a limiting space of the welding apparatus.

[0018] The support surface of the aforementioned welding device's support member is provided with a limiting space for setting and limiting the welding strip. This fixes the position of the welding strip, allowing it to align with the welding position on the photovoltaic module, thus achieving a pre-positioning function. The driving member is used to move the welding strip to contact the photovoltaic module. The driving member can precisely control the movement path and position of the welding strip, ensuring it accurately reaches the preset welding position and avoiding welding strip misalignment caused by manual placement or other inaccurate methods. The hot-pressing member is used to hot-press the welding strip and the photovoltaic module. During the hot-pressing process, the hot-pressing member applies uniform pressure and heat, keeping the welding strip stable during the connection with the weld point and preventing misalignment due to uneven external forces. Uniform hot-pressing ensures the connection quality between the welding strip and the weld point, and also helps to fix the position of the welding strip at the moment of welding, preventing misalignment under welding stress. Therefore, by providing a limiting space on the support member and adding a driving member and a hot-pressing member, misalignment during welding strip connection can be reduced, improving the quality of the welding strip connection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a welding apparatus provided in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of a welding device for mounting photovoltaic modules, provided in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of a welding apparatus provided in an embodiment of this application without photovoltaic modules.

[0023] Figure 4 This is a schematic diagram of a partial structure of a welding apparatus provided in an embodiment of this application.

[0024] Figure 5 This is a structural schematic diagram of the support platform for the support member provided in the embodiment of this application.

[0025] Figure 6 A schematic diagram of the structure of the heating base of the support member provided in the embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 100, welding device; 1, supporting component; 11, supporting surface; 12, photovoltaic module; 13, limiting space; 14, limiting groove; 15, mounting through hole; 151, first mounting through hole; 152, second mounting through hole; 16, supporting platform; 17, heating base; 18, movable groove; 2, driving component; 21, inner tube; 22, outer tube; 23, lifting component; 3, hot pressing component; 4, connecting component; 5, limiting structure. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the manufacturing process of photovoltaic modules, solder ribbons need to be welded onto the solar cells in various situations, and the problem of solder ribbon misalignment can easily occur, affecting the welding quality.

[0029] For example, in tensile testing, a tensile test sample is created to test the welding tensile strength of the entire photovoltaic module. The sample consists of two solar cells connected by a solder ribbon. Because the solder ribbon needs to be welded to different points on the two cells, it is prone to misalignment during the welding process, affecting the welding quality and consequently the tensile test results. In the rework process, defects in the entire photovoltaic module can be detected through light injection and electrical injection tests. Once a defect is found, the defective cell and its solder ribbon at that location need to be completely removed and reworked. Rework requires re-welding the solder ribbon; similarly, the solder ribbon needs to be welded to different points on the cell, and misalignment is also prone to occur during the welding process, affecting the welding quality and consequently the rework quality.

[0030] Due to the tendency of the solder strip to shift during the welding process, affecting weld quality, please refer to [the relevant documentation / reference]. Figure 1 This application provides a welding apparatus 100. The welding apparatus 100 includes a support member 1 and a driving member 2 (see [link to application]). Figure 3 and Figure 4 ), and hot-pressed component 3. See also Figure 1 The support member 1 has a support surface 11 for supporting the photovoltaic module 12, and the support surface 11 is provided with a limiting space 13 for setting the connector 4 (see [link]). Figure 3 and Figure 4 Please see; Figure 4The driving component 2 is used to drive the connector 4 to contact the photovoltaic module 12; the hot-pressing component 3 is used to hot-press the connector 4 and the photovoltaic module 12. The supporting surface 11 of the supporting component 1 of the welding device 100 is provided with a limiting space 13 to limit the connector 4 (i.e., the welding strip), fixing the position of the welding strip and aligning it with the welding position on the photovoltaic module 12. The limiting space 13 serves as a pre-positioning mechanism. The driving component 2 is used to drive the welding strip to contact the photovoltaic module 12. The driving component 2 can precisely control the movement path and position of the welding strip, ensuring it accurately reaches the preset welding position and avoiding welding strip misalignment caused by manual placement. The hot-pressing component 3 is used to hot-press the welding strip and the photovoltaic module 12. During the hot-pressing process, the hot-pressing component 3 applies uniform pressure and heat, keeping the welding strip stable during the connection with the welding point and preventing misalignment due to uneven external forces. Uniform hot-pressing ensures the connection quality between the welding strip and the welding point, and also helps to fix the position of the welding strip at the moment of welding, preventing it from shifting under welding stress. Therefore, by setting a limiting space 13 on the support member 1 and adding a driving member 2 and a hot pressing member 3, the offset during the welding strip connection can be reduced and the welding strip connection quality can be improved.

[0031] It should be noted that the embodiments of this application do not limit the specific composition of the photovoltaic module 12. The number of photovoltaic cells in the photovoltaic module 12 can be one, two, three, etc. For example, please refer to [link to relevant documentation]. Figure 2 The photovoltaic module 12 may be a tensile test sample composed of two photovoltaic cells. This application embodiment does not limit the specific state of the photovoltaic cells in the photovoltaic module 12; the photovoltaic cells may be good or defective cells. This application embodiment also does not limit the specific type of photovoltaic cells in the photovoltaic module 12; the photovoltaic cells may be back-contact solar cells, heterojunction solar cells, passivated contact solar cells, etc.

[0032] In this embodiment, the connector 4 may be a solder strip. Contact between the connector 4 and the photovoltaic module 12 refers to the solder strip contacting the solder joints and / or the positive and / or negative grids on the photovoltaic cells of the photovoltaic module 12. The connector 4 may be soldered to at least one of the solder joints, the positive grid, or the negative grid.

[0033] In the embodiments of this application, the thickness direction is as follows: Figures 3 to 6 The Z-direction is shown, and the first direction is as follows: Figures 3 to 6 The X direction is shown, and the second direction is as follows. Figures 3 to 6 Y direction shown.

[0034] In the optional implementation, please refer to Figure 3The limiting space 13 can be formed by the support member 1 having a limiting groove 14 recessed on its support surface 11, with the connector 4 disposed within the limiting groove 14. Alternatively, the support surface 11 can have a limiting protrusion protruding from it, with the connector 4 clamped within the limiting protrusion. The embodiments of this application do not limit the specific formation of the limiting space 13.

[0035] In an optional embodiment, the drive member 2 may be connected to the support member 1. Alternatively, the drive member 2 may be independently disposed outside the support member 1.

[0036] Please see Figure 3 In some embodiments, the supporting surface 11 is recessed with a limiting groove 14 extending along a first direction. The connector 4 is at least partially located outside the limiting groove 14 along the first direction. The driving member 2 is connected to the supporting member 1 and located outside the limiting groove 14. The driving member 2 is used to drive the connector 4 to move along the thickness direction of the supporting member 1 to contact the photovoltaic module 12. The first direction intersects with the thickness direction of the supporting member 1. Since the supporting surface 11 needs to support the photovoltaic module 12, the recessed limiting groove 14 provides a larger contact area for supporting the photovoltaic module 12, enabling the photovoltaic module 12 to be stably supported. The driving member 2 is connected to the supporting member 1, which improves the structural compactness of the welding device 100, shortens the driving distance of the driving member 2, improves the driving efficiency, and enables the connector 4 to accurately and quickly contact the photovoltaic module 12.

[0037] In an optional embodiment, the driving component 2 may be a telescopic rod, a telescopic cylinder, a telescopic electric cylinder, etc.

[0038] Preferably, the driving component 2 is a telescopic rod. (See also...) Figure 4 In some embodiments, the driving component 2 includes an inner tube 21 and an outer tube 22. The inner tube 21 is movably inserted inside the outer tube 22. The outer tube 22 is connected to the support component 1 and located outside the limiting groove 14. The inner tube 21 is used to controllably extend out of the outer tube 22 to push the connector 4 along the thickness direction of the support component 1 to contact the photovoltaic module 12. The inner tube 21 of the telescopic rod can flexibly extend or retract within the outer tube 22, and the extension length and speed can be precisely controlled, thereby accurately pushing the connector 4 along the thickness direction of the support component 1 to achieve good contact with the photovoltaic module 12. The telescopic rod structure composed of the inner tube 21 and the outer tube 22 is relatively simple and occupies little space. The inner tube 21 moves inside the outer tube 22, and the outer tube 22 can provide good guidance for the inner tube 21, ensuring that the inner tube 21 maintains linear motion during extension and retraction, thereby accurately pushing the connector 4 to move in a predetermined direction. This good guidance helps to improve the accuracy and consistency of welding and avoid welding quality problems caused by deviations in the movement direction of the connector 4.

[0039] Please see Figure 4In some embodiments, the driving component 2 further includes a lifting member 23, which is located at one end of the inner tube 21 along the thickness direction of the supporting component 1. The projected area of ​​the lifting member 23 along the thickness direction of the supporting component 1 is larger than the projected area of ​​the inner tube 21. Adding the lifting member 23 increases the contact area between the inner tube 21 and the photovoltaic module 12, reduces force dispersion, and thus more efficiently lifts the connector 4 to contact the photovoltaic module 12, helping to improve the working efficiency of the welding device 100. The contact between the lifting member 23 and the connector 4 is tighter, and during the process of pushing the connector 4, it can better resist lateral forces and other interference forces, making the entire lifting process smoother. As an intermediate transition component between the connector 4 and the inner tube 21, the lifting member 23 transmits the lifting force of the inner tube 21 to the connector 4, avoiding wear or stress concentration caused by direct contact between the inner tube 21 and the connector 4. At the same time, it also protects the connector 4 from the effects of excessive local pressure that may be generated by the inner tube 21, extending the service life of both the inner tube 21 and the connector 4.

[0040] In an optional embodiment, the drive member 2 may be connected to the outside of the support member 1, or the drive member 2 may be embedded inside the support member 1.

[0041] Please see Figure 4 In some embodiments, the support member 1 is further provided with a mounting through hole 15 along its thickness direction. The mounting through hole 15 communicates with the limiting groove 14. The main body of the drive member 2 is disposed in the mounting through hole 15, and the drive end of the drive member 2 can be movably inserted through the mounting through hole 15. Embedding the drive member 2 in the support member 1 can further compact the structure of the welding device 100 and reduce the volume of the welding device 100. The mounting through hole 15 provides a relatively closed installation environment for the drive member 2, which can protect the drive member 2 and reduce its interference and damage from external factors (such as dust, moisture, collision, etc.), thereby improving the reliability and service life of the drive member 2. The movable insertion of the drive end of the drive member 2 through the mounting through hole 15 can more accurately control the movement direction and stroke of the drive end, ensuring that it accurately lifts the connector 4 in the limiting groove 14 and achieves reliable contact with the photovoltaic module 12. At the same time, the limiting of the hole wall of the mounting through hole 15 makes the transmission of the drive member 2 more stable, reduces transmission deviation or shaking, and is conducive to improving the welding accuracy and quality.

[0042] In an optional embodiment, the outer tube 22 of the drive component 2 is embedded in the inner wall of the mounting through hole 15, and the inner tube 21 and the lifting component 23 of the drive component 2 are movably inserted through the mounting through hole 15.

[0043] Please see Figure 4In some embodiments, the supporting surface 11 is further recessed with a movable groove 18, one end of the limiting groove 14 along the first direction is connected to the movable groove 18, and a mounting through hole 15 is provided at the bottom of the movable groove 18. The driving end of the driving member 2 can movably pass through the mounting through hole 15 and the movable groove 18. The addition of the movable groove 18 can avoid the lifting connector 4 of the driving member 2, providing a larger range of motion for the lifting action of the driving member 2, making the movement of the driving member 2 smoother. During installation, the connector 4 can be placed more conveniently in the limiting groove 14 through the movable groove 18, and the driving member 2 can be installed at the mounting through hole 15 at the bottom of the movable groove 18, with a larger operating space and improved installation efficiency.

[0044] Please see Figure 3 In some embodiments, the movable groove 18 extends along a second direction, and on at least one side along the first direction, both the limiting groove 14 and the mounting through hole 15 include multiple holes spaced apart along the second direction. The mounting through hole 15 corresponds one-to-one with the limiting groove 14. The second direction, the thickness direction of the supporting member 1, and the first direction intersect each other, but are not coplanar. It is understood that each mounting through hole 15 is provided with a driving member 2. The movable groove 18 extends along the second direction, increasing the opening space of the movable groove 18 and providing space for setting multiple mounting through holes 15. This provides a movable workpiece for the lifting movement of multiple driving members 2, enabling multiple driving members 2 to simultaneously lift multiple connecting parts 4, thereby improving the welding efficiency of the welding device 100.

[0045] Please see Figure 3 In an optional embodiment, the limiting groove 14 can be disposed on one side or opposite sides of the movable groove 18 along the first direction. When the limiting groove 14 is disposed on opposite sides of the movable groove 18 along the first direction, the driving member 2 can simultaneously lift the connector 4 in the limiting groove 14 on the left and right sides of the movable groove 18 to connect with the photovoltaic module 12, thereby further improving the welding efficiency of the welding device 100.

[0046] In an optional embodiment, the outer tube 22 of each drive component 2 is respectively embedded in its respective mounting through hole 15, and the inner tube 21 and lifting member 23 of each drive component 2 can be movably inserted into a corresponding mounting through hole 15 and movable groove 18.

[0047] Please see Figure 5 and Figure 6In some embodiments, the support member 1 includes a support platform 16 and a heating base 17. The heating base 17 is connected to the bottom of the support platform 16. The support platform 16 has a support surface 11. The mounting through hole 15 includes a first mounting through hole 151 and a second mounting through hole 152 that are connected to each other. The first mounting through hole 151 communicates with the limiting groove 14. The support platform 16 has a through hole 151 extending along its thickness direction. The heating base 17 has a second mounting through hole 152. The heating base 17 is used to heat the driving member 2. In other words, the support member 1 also has a heating function. The heating base 17 transfers heat to the driving member 2 through the wall of the second mounting through hole 152. The driving member 2 then transfers heat to the connector 4, which can promote the welding of the connector 4 and the photovoltaic module 12. It can cooperate with the hot pressing member 3 to weld the connector 4 onto the photovoltaic module 12, thereby improving welding efficiency.

[0048] In an optional embodiment, heating elements such as heating wires and heating plates can be embedded in the wall of the second mounting through hole 152 of the heating base 17 to achieve heating.

[0049] Please see Figure 5 In an optional embodiment, the support surface 11 of the support platform 16 is recessed with a movable groove 18, and a first mounting through hole 151 is provided at the bottom of the movable groove 18. The first mounting through hole 151 may include a plurality of holes spaced apart along the second direction, and the second mounting through hole 152 also includes a plurality of holes spaced apart along the second direction.

[0050] In an optional embodiment, the drive member 2 includes multiple components, and the outer tube 22 of each drive member 2 is embedded in a second mounting through hole 152 (see [link]). Figure 4 and Figure 6 Each drive component 2's inner tube 21 and lifting component 23 can be movably inserted into a corresponding second mounting through hole 152 (see [reference]). Figure 6 ) and the first mounting through hole 151 (see Figure 5 The heating base 17 transfers heat to the outer tube 22 of each driving component 2, and the outer tube 22 transfers heat to the inner tube 21 and the lifting component 23. The lifting component 23 heats the connecting component 4.

[0051] Please see Figure 2 In some embodiments, the supporting surface 11 is provided with a limiting structure 5, which is used to abut against the edge of the photovoltaic module 12. The limiting structure 5 can limit the photovoltaic module 12 and prevent the photovoltaic module 12 from shifting during the welding process, thereby causing the welding of the connector 4 to be misaligned.

[0052] In an optional implementation, the limiting structure 5 may be a limiting post or a limiting block.

[0053] In some embodiments, the hot-pressing member 3 may be connected to the support member 1 or disposed independently outside the support member 1.

[0054] Please see Figure 1 In an optional embodiment, the hot-pressing member 3 is flipped and connected to the support member 1. The hot-pressing member 3 can be flipped and covered on the side surface of the photovoltaic module 12 away from the connector 4. The hot-pressing member 3 heats the photovoltaic module 12 so that the photovoltaic module 12 is welded to the connector 4.

[0055] In an optional embodiment, the hot-pressing member 3 can be rotatably connected to the support member 1 via a hinge or shaft.

[0056] In an optional embodiment, the hot-pressing component 3 may be embedded with heating elements such as heating wires and heating plates to achieve heating.

[0057] Secondly, embodiments of this application also provide a welding system, which includes a welding apparatus 100 as described in the first aspect and a connector 4, wherein the connector 4 can be disposed in the limiting space 13 of the welding apparatus 100. This welding system also has all the technical effects possessed by the welding apparatus 100, which will not be described in detail here.

[0058] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0059] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A welding apparatus (100), characterized in that, include: Support member (1), the support member (1) has a support surface (11) for supporting photovoltaic module (12), the support surface (11) is provided with a limiting space (13), the limiting space (13) is used to set the connector (4); A driving component (2) is used to drive the connector (4) to move to contact the photovoltaic module (12); as well as Hot-pressing component (3) is used to hot-press the connector (4) and the photovoltaic module (12).

2. The welding apparatus (100) according to claim 1, characterized in that, The supporting surface (11) is recessed with a limiting groove (14), the limiting groove (14) extends along a first direction, the connector (4) is at least partially located outside the limiting groove (14) along the first direction, the driving member (2) is connected to the supporting member (1) and located outside the limiting groove (14), the driving member (2) is used to drive the connector (4) to move along the thickness direction of the supporting member (1) to contact the photovoltaic module (12), the first direction intersects the thickness direction of the supporting member (1).

3. The welding apparatus (100) according to claim 2, characterized in that, The driving component (2) includes an inner tube (21) and an outer tube (22). The inner tube (21) is movably inserted inside the outer tube (22). The outer tube (22) is connected to the support component (1) and located outside the limiting groove (14). The inner tube (21) is controlled to extend out of the outer tube (22) to push the connector (4) to move along the thickness direction of the support component (1) to contact the photovoltaic module (12).

4. The welding apparatus (100) according to claim 3, characterized in that, The driving component (2) further includes a lifting component (23), which is located at one end of the inner tube (21) along the thickness direction of the supporting component (1). The projected area of ​​the lifting component (23) along the thickness direction of the supporting component (1) is greater than the projected area of ​​the inner tube (21).

5. The welding apparatus (100) according to claim 2, characterized in that, The support member (1) is also provided with an installation through hole (15) along its own thickness direction. The installation through hole (15) is connected to the limiting groove (14). The main body of the driving member (2) is located in the installation through hole (15). The driving end of the driving member (2) can be movably inserted through the installation through hole (15).

6. The welding apparatus (100) according to claim 5, characterized in that, The support member (1) includes a support platform (16) and a heating base (17). The heating base (17) is connected to the bottom of the support platform (16). The support platform (16) has the support surface (11). The mounting through hole (15) includes a first mounting through hole (151) and a second mounting through hole (152) that are connected. The first mounting through hole (151) is connected to the limiting groove (14). The support platform (16) has the first mounting through hole (151) through it along its own thickness direction. The heating base (17) has the second mounting through hole (152). The heating base (17) is used to heat the driving member (2).

7. The welding apparatus (100) according to claim 5, characterized in that, The supporting surface (11) is also recessed with a movable groove (18). One end of the limiting groove (14) along the first direction is connected to the movable groove (18). The mounting through hole (15) is located at the bottom of the movable groove (18). The driving end of the driving member (2) can be movably inserted through the mounting through hole (15) and the movable groove (18).

8. The welding apparatus (100) according to claim 7, characterized in that, The movable groove (18) extends along the second direction, and on at least one side along the first direction, the limiting groove (14) and the mounting through hole (15) each include a plurality of holes spaced apart along the second direction. The mounting through hole (15) is provided in a one-to-one correspondence with the limiting groove (14). The second direction, the thickness direction of the support member (1), and the first direction intersect each other, and the three are not coplanar.

9. The welding apparatus (100) according to any one of claims 1 to 8, characterized in that, The supporting surface (11) is provided with a limiting structure (5), which is used to abut against the edge of the photovoltaic module (12).

10. A welding system, characterized in that, The welding system includes a welding apparatus (100) as described in any one of claims 1 to 9 and a connector (4), the connector (4) being disposed in the limiting space (13) of the welding apparatus (100).

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