Welding base plate

Abstract

The utility model relates to the field of bus bar welding, in particular to a welding base plate. The welding base plate comprises a mounting plate and a suction device. The suction device is mounted on the mounting plate and comprises an elastic part, a separation device and an adsorption block; the separating device is fixedly connected with the mounting plate; the adsorption block is movably connected with the mounting plate; the elastic part is connected with the bottom of the adsorption block, the separation device pulls the adsorption block to be close to the separation device, the separation device enables the adsorption device to be separated from the bus bar in the welding process of the bus bar, and the situation that adsorption marks are reserved in heating welding of the bus bar is avoided.

Description

Technical Field

[0001] This utility model relates to the field of busbar welding technology, specifically a welding pad. Background Technology

[0002] To ensure the welding quality of the busbar and the battery string, traditional busbar welding usually uses heating to weld the busbar and the welding strip. This welding method has some drawbacks. For example, according to Chinese utility model publication number "CN215238702U", after the busbar and the welding strip are welded, the suction device continuously exerts a suction effect on the busbar, so the busbar stays attached to the suction device. After welding, an adsorption mark will be left on the busbar at the location of the suction device, which affects the overall aesthetics of the photovoltaic module and the welding quality. Utility Model Content

[0003] To address the issue of adhesion marks left during traditional busbar welding, this invention provides a welding pad; the specific solution is as follows:

[0004] The welding pad includes a mounting plate and a suction device; the suction device is mounted on the mounting plate and includes an elastic part, a release device, and an adsorption block; the release device is fixedly connected to the mounting plate; the adsorption block is movably connected to the mounting plate; the elastic part is connected to the bottom of the adsorption block, and the release device pulls the adsorption block closer to the release device.

[0005] The detachment device allows the suction device to detach from the busbar during the welding process, preventing the busbar from leaving suction marks during heating and welding.

[0006] Preferably, the adsorption block is made of ferromagnetic material or an alloy containing ferromagnetic material, and in this embodiment, the detachment device is an electromagnet.

[0007] When the busbar is heated and welded, the electromagnet generates an electromagnetic field to attract the suction block away from the busbar, thus avoiding suction marks left during the heating and welding process. When the electromagnet is de-energized, the electromagnetic field disappears, and the suction block is ejected by the elastic component. By utilizing the attraction force of the electromagnet and the rebound of the elastic component, the suction block is flexibly and effectively attracted to the busbar while avoiding suction marks left during welding.

[0008] Preferably, the mounting plate has several suction slots formed on it according to the shape of the adsorption block; the number of suction slots corresponds one-to-one with the number of adsorption blocks, and the adsorption blocks are placed in the suction slots.

[0009] Specifically, at least one guide post is provided in the suction tank, and a guide hole is opened at the position of the suction block relative to the guide post. The top of the guide post passes through the guide hole, and the bottom of the guide post is connected to the mounting plate.

[0010] By setting guide posts inside the suction tank, and connecting the guide posts to guide holes on the adsorption block with the same diameter as the guide posts; the guide posts pass through the guide holes to restrict the movement of the adsorption block; thus ensuring the stability of the adsorption block in absorbing the manifold.

[0011] Preferably, the guide post is also provided with an elastic component, and the mounting plate is also provided with a circular groove for accommodating the elastic component.

[0012] The elastic parts on the guide post and the circular grooves on the mounting plate that accommodate the elastic parts allow the adsorption block to flexibly pick up or detach from the busbar, increasing the welding efficiency of the busbar.

[0013] Specifically, the welding pad also includes a mounting cover plate, which is installed on the top of the mounting plate. The mounting cover plate and the suction groove form a closed space to accommodate the adsorption block. The mounting cover plate has an exposure groove for the adsorption block. The projected area of ​​the exposure groove on the mounting plate is smaller than the projected area of ​​the adsorption block on the mounting plate.

[0014] By making the exposed groove of the adsorption block in the mounting cover plate smaller than the projected area of ​​the adsorption block on the mounting plate, it is possible to effectively prevent the adsorption block from being ejected from the adsorption groove when it sucks up the manifold; this maintains the stable operation of the equipment and improves the welding efficiency of the manifold. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 for Figure 1 The main view;

[0017] Figure 3 for Figure 2 Sectional view along the AA direction;

[0018] Figure 4 This is the main view in another cutting direction;

[0019] Figure 5 for Figure 4 BB-direction sectional view;

[0020] Figure 6 for Figure 1 A three-dimensional structural diagram of the removal and suction device;

[0021] Figure 7 for Figure 6 The main view;

[0022] Figure 8 for Figure 7 CC-direction sectional view;

[0023] Figure 9 A schematic diagram of the overall structure of the position extraction block.

[0024] In the diagram: 03, mounting cover; 01, suction nozzle; 05, mounting plate; 23, circular groove; 00, exposed groove; 13, guide groove; 15, suction groove; 11, electromagnet; 22, guide groove; 20, guide post. Detailed Implementation

[0025] The following is a further detailed description based on the accompanying drawings and this embodiment:

[0026] like Figure 1 The mounting cover 03 shown is attached to the electromagnet 11, so that the adsorption block is detached from the busbar, thus preventing the nozzle 01 from leaving adsorption marks on the busbar when the busbar is heated and welded.

[0027] The mounting plate 05 has several suction slots 15 formed on it according to the shape of the adsorption blocks, and the number of suction slots 15 corresponds one-to-one with the number of adsorption blocks, such as... Figure 3 according to Figure 2 As shown in the AA direction sectional view: the adsorption block is set in the suction groove 15.

[0028] When the suction nozzle 01 needs to adsorb the busbar for welding, the electromagnet 11 is de-energized and the electromagnetic field disappears. The suction nozzle 01 is ejected from the suction groove 15 by the compression spring, ensuring that the suction nozzle 01 can extend out of the suction groove 15 to adsorb and fix the busbar when it is not in the welding stage.

[0029] Among them, at least one guide post 20 is provided in the suction groove 15, such as Figure 4 BB direction section view Figure 5 As shown: the top end of the guide post 20 is connected to the guide groove 22 opened on the adsorption block according to the guide post 20, and the guide post 20 passes through the guide groove 22; the bottom end of the guide post 20 is connected to the mounting plate 05; and an elastic part is sleeved on each guide post 20; in order to allow the elastic part to have sufficient rebound space, a circular groove 23 for accommodating the elastic part is provided on the mounting plate 05; in this embodiment, there are 4 guide posts 20; the elastic part is a compression spring. By setting the compression spring on the guide post 20 and the circular groove 23 for accommodating the compression spring on the mounting plate 05, the adsorption block can flexibly pick up and avoid the busbar on the guide post 20 by the compression spring, thereby improving the welding efficiency of the busbar.

[0030] The welding pad also includes a mounting cover plate. The mounting cover plate and the suction groove 15 form a closed space to accommodate the adsorption block. The mounting cover plate has an exposure groove 00 relative to the adsorption block. The projected area of ​​the exposure groove 00 on the mounting plate 05 is smaller than the projected area of ​​the adsorption block on the mounting plate 05.

[0031] By setting the mounting cover plate to have an exposed groove 00 relative to the adsorption block, and the projected area of ​​the exposed groove 00 on the mounting plate 05 is smaller than the projected area of ​​the adsorption block on the mounting plate 05, the adsorption block is prevented from popping out of the adsorption groove 15 during the welding process of the busbar, thereby improving the welding efficiency of the busbar.

[0032] In summary, in this embodiment, the electromagnetic suction nozzle 01 generated by the energization of the electromagnet 11 during busbar welding is used to detach the busbar, avoiding the adhesion marks left by the heating and welding of the busbar; this solves the welding shortcomings of traditional busbars and improves the production efficiency of the equipment.

Claims

1. A welding backing plate characterized by, The welding backing plate comprises a mounting plate and a suction device; the suction device is mounted on the mounting plate, the suction device comprises elastic parts, a separation device and a suction block; the separation device is fixedly connected with the mounting plate; the suction block is movably connected with the mounting plate; the elastic parts are connected with the bottom of the suction block; the separation device pulls the suction block close to the separation device.

2. A welding skid as defined in claim 1, wherein The suction block is made of ferromagnetic material or alloy containing ferromagnetic material, and the separation device adopts an electromagnet.

3. The welding backing plate of claim 1, wherein, The mounting plate is provided with a plurality of suction grooves according to the shape of the suction block; the suction grooves and the suction blocks are one-to-one corresponding in number, and the suction blocks are arranged in the suction grooves.

4. The welding backing plate of claim 3, wherein, At least one guide column is arranged in the suction groove, and the suction block is provided with a guide hole relative to the position of the guide column; the top end of the guide column penetrates through the guide hole, and the bottom end of the guide column is connected with the mounting plate.

5. The welding backing plate of claim 4, wherein, The guide column is provided with elastic parts.

6. A welding skid as defined in claim 5 wherein, The mounting plate is provided with a circular groove accommodating the elastic parts.

7. The welding backing plate of claim 6, wherein, Further comprising a mounting cover plate, the mounting cover plate is mounted on the top of the mounting plate, the mounting cover plate and the suction groove form a closed space to accommodate the suction block, the mounting cover plate is provided with an exposed groove relative to the suction block, and the projection area of the exposed groove on the mounting plate is smaller than the projection area of the suction block on the mounting plate.

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