Electromagnetic welding head and welding device

Abstract

The utility model relates to the technical field of photovoltaic module production, in particular to an electromagnetic welding head and a welding device. The electromagnetic welding head comprises a base, a magnetic core, a conductive tube, a first connector and a second connector, the magnetic core is arranged on the base, the conductive tube is wound around the magnetic core, the first end of the conductive tube is connected with the first connector, the second end of the conductive tube is connected with the second connector, and the conductive tube is provided with an inlet allowing a cooling medium to enter and an outlet allowing the cooling medium to flow out. After the conductive tube is connected with alternating current, a welding piece can be heated. And a cooling medium is introduced from the inlet, exchanges heat with the conductive tube and then flows out from the outlet, so that the temperature of the electromagnetic welding head is quickly reduced. And the welding device comprises a driving mechanism, a movable beam and an electromagnetic welding head, and the driving mechanism drives the electromagnetic welding head to move to a target position for welding work.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic module production technical field, concretely relates to a kind of electromagnetic welding head and welding device. BACKGROUND

[0002] Photovoltaic module welding process includes two parts, the first part is that the welding strip is welded with battery piece to form battery string, and the second part is that battery string is welded with bus bar to form battery string group.

[0003] Welding head is used in related equipment to weld battery string and bus bar. Utility model patent CN215091314U discloses a kind of device of high-frequency electromagnetic welding bus bar and welding strip, utilizes cooling fan to cool welding head mechanism and electromagnetic heater, to prevent it from overheating. Welding head mechanism, electromagnetic heater and cooling fan are sequentially arranged from top to bottom, and heating mechanism is slow to cool. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides the following scheme:

[0005] On the one hand, the utility model provides a kind of electromagnetic welding head, base, magnetic core, electrically conductive tube, first connector and second connector, the magnetic core is arranged on the base, the electrically conductive tube is wound through the magnetic core, the first end of the electrically conductive tube is connected with the first connector, the second end of the electrically conductive tube is connected with the second connector, the electrically conductive tube has the inlet for cooling medium to enter and the outlet to flow out.

[0006] Further, the first connector is provided with the first channel that is communicated with the first end opening of the electrically conductive tube, the second connector is provided with the second channel that is communicated with the second end opening of the electrically conductive tube, the first end opening of the electrically conductive tube is the inlet, and the second end opening of the electrically conductive tube is the outlet.

[0007] Further, the electrically conductive tube includes first pipe body and second pipe body, the first end of the first pipe body and the first end of the second pipe body are connected with the first connector and the second connector respectively, and the second end of the first pipe body and the second end of the second pipe body are connected by adapter; the first connector is provided with the third channel that is communicated with the first end opening of the first pipe body, the second connector is provided with the fourth channel that is communicated with the first end opening of the second pipe body, the adapter is provided with the fifth channel, the fifth channel is communicated with the second end opening of the first pipe body and the second end opening of the second pipe body, and the first end opening of the first pipe body and the first end opening of the second pipe body are the inlet, and the second end opening of the first pipe body and the second end opening of the second pipe body are the outlet.

[0008] Further, the electromagnetic welding head further comprises a cover plate, the base has a recess, the magnetic core is installed in the recess, and the cover plate is arranged at the opening of the recess.

[0009] Further, an insulating member is sleeved on the conductive pipe, and the space in the recess not occupied by the magnetic core is filled with sealant.

[0010] Further, a separation member is arranged between the cover plate and the sealant, and the separation member covers the opening of the recess.

[0011] Further, the surface of the cover plate is provided with a groove.

[0012] Further, the two sides of the cover plate are provided with pressing plates, the pressing plates are fixedly connected with the base, the edge of the pressing plate presses the edge of the cover plate, and the contact surfaces of the cover plate and the pressing plate are both inclined surfaces.

[0013] In another aspect, the utility model provides a kind of welding device, including drive mechanism, moving beam and the electromagnetic welding head, the drive mechanism is driven connection with the moving beam to drive the moving beam horizontal movement, and the electromagnetic welding head is arranged on the moving beam.

[0014] Further, the welding device further comprises a plurality of adsorption assemblies, the adsorption assembly comprises a gas block, a suction cup seat and a suction cup connected in sequence, the electromagnetic welding head is provided with an avoidance channel penetrating through the cover plate and the base, the suction cup seat extends into the avoidance channel, the suction cup is arranged at the opening of the avoidance channel close to the cover plate, and a plurality of the magnetic cores are arranged side by side, and a plurality of the adsorption assemblies are arranged in the gaps of the plurality of the magnetic cores.

[0015] Further, the adsorption assembly further comprises a gas cylinder arranged on the moving beam, and the gas cylinder is drivingly connected with the gas block to drive the suction cup to move up and down.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The electromagnetic welding head utilizes electromagnetic heating principle to weld busbar and battery string, and comprises a base, a magnetic core, a conductive pipe, a first connector and a second connector. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the structural schematic diagram of the electromagnetic welding head of the utility model;

[0019] Figure 2 is the partial sectional view of the electromagnetic welding head of the utility model;

[0020] Figure 3 is the winding relationship schematic diagram of one wire tube and one magnetic core in the utility model;

[0021] Figure 4 is the winding relationship schematic diagram of one wire tube and multiple magnetic cores in the utility model;

[0022] Figure 5 is the winding relationship schematic diagram of two wire tubes and one magnetic core in the utility model;

[0023] Figure 6 is the structural schematic diagram of the welding device of the utility model;

[0024] Figure 7 is the structural schematic diagram of the adsorption assembly in the utility model.

[0025] Among them: 100, electromagnetic welding head;110, base;111, recess;112, isolation piece;113, pressing plate;120, magnetic core;130, cover plate;140, conductive tube;141, first tube body;142, second tube body;150, first connector;160, second connector;170, insulating piece;180, adapter;200, driving mechanism;300, moving beam;400, adsorption assembly;410, air block;420, suction cup seat;430, suction cup;440, air cylinder. DETAILED DESCRIPTION

[0026] The technical scheme and technical effects of the utility model are further described in detail below in combination with the drawings of the utility model.

[0027] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the description of the embodiment, the relationship terms such as "first" and "second" are only used to distinguish the first feature from the second feature, and do not necessarily require or imply any actual relationship or order between the features.

[0029] As Figures 1-2 The utility model provides a kind of electromagnetic welding head 100 for welding busbar and battery string. Electromagnetic welding head includes: pedestal 110, magnetic core 120, electrically conductive tube 140, first connector 150 and second connector 160, magnetic core 120 is arranged on pedestal 110, electrically conductive tube 140 is wound through magnetic core 120, the first end of electrically conductive tube 140 is connected with first connector 150, the second end of electrically conductive tube 140 is connected with second connector 160, electrically conductive tube 140 has the entrance for cooling medium to enter and the outlet that flows out.

[0030] In the utility model, pedestal 110 is made of non-metallic material, provides installation foundation. First connector 150 and second connector 160 are connected with power supply, so that current flows through magnetic core 120 to generate alternating magnetic field by electrically conductive tube 140, to heat welding piece. In welding process, electromagnetic welding head 100 will be heated, and cooling medium, such as water or air, is passed into inlet, and cooling medium flows out from outlet after heat exchange with electrically conductive tube 140, can quickly reduce the temperature of electromagnetic welding head 100, avoid overheating problem of electromagnetic welding head 100. As Figure 3 And Figure 4 As shown in the drawings, magnetic core 120 can be one whole, also can be multiple, and magnetic core 120 is preferably E-shaped, with low cost, large middle magnetic field intensity, fast heating speed and convenient winding of electrically conductive tube 140.

[0031] In the embodiment, first connector 150 is provided with first channel communicated with the first end opening of electrically conductive tube 140, and second connector 160 is provided with second channel communicated with the second end opening of electrically conductive tube 140, the first end opening of electrically conductive tube 140 is inlet, and the second end opening of electrically conductive tube 140 is outlet. One cooling pipeline is used to cool the whole electromagnetic welding head 100, and it is suitable for electromagnetic welding head 100 with short heating range.

[0032] As Figure 5As shown, in another embodiment, the conductive tube 140 comprises a first tube body 141 and a second tube body 142, the first end of the first tube body 141 and the first end of the second tube body 142 are connected with the first joint 150 and the second joint 160 respectively, and the second end of the first tube body 141 and the second end of the second tube body 142 are connected through the adapter 180; the first joint 150 is provided with a third channel in communication with the first end opening of the first tube body 141, the second joint 160 is provided with a fourth channel in communication with the first end opening of the second tube body 142, and the adapter 180 is provided with a fifth channel in communication with the second end opening of the first tube body 141 and the second end opening of the second tube body 142; the first end opening of the first tube body 141 and the first end opening of the second tube body 142 are inlets, and the second end opening of the first tube body 141 and the second end opening of the second tube body 142 are outlets. During use, cooling medium is simultaneously introduced into the two inlets, and the cooling medium in the first tube body 141 and the second tube body 142 flows out from the adapter 180. The entire electromagnetic welding head 100 is cooled by using two cooling pipelines, and the cooling effect is better, and the electromagnetic welding head 100 is suitable for a longer heating range.

[0033] In other embodiments of the present application, the inlet and the outlet can also be provided on the side wall of the conductive tube 140.

[0034] In the present application, the electromagnetic welding head 100 further comprises a cover plate 130, the base 110 is provided with a recess 111, the magnetic core 120 is installed in the recess 111, and the cover plate 130 is arranged at the opening of the recess 111. The cover plate 130 is made of hard high-temperature-resistant material, such as ceramic, and the cover plate 130 separates the magnetic core 120 from the welding piece. During welding, the cover plate 130 can carry the welding piece or press the welding piece.

[0035] In the present application, an insulating member 170 is sleeved on the conductive tube 140, which separates the conductive tube 140 from the magnetic core 120. The insulating member 170 is an insulating sleeve sleeved on the magnetic core 120 or an insulating coating coated on the surface of the magnetic core 120. The space in the recess 111 not occupied by the magnetic core 120 is filled with sealant, and after the sealant is cured, the conductive tube 140 and the magnetic core 120 are fixed. An isolation member 112 is arranged between the cover plate 130 and the sealant, the isolation member 112 covers the opening of the recess 111, the isolation member 112 can prevent the sealant from overflowing, and separates the cover plate 130 from the sealant. After the recess 111 is filled with the sealant and the isolation member 112 is laid, the isolation member 112 can be flattened, and after the sealant is cured, the isolation member 112 remains flat. During welding, the isolation member 112 also supports the cover plate 130, so that the cover plate 130 will not be deformed due to stress during the welding process.

[0036] In the present application, the surface of the cover plate 130 is provided with a groove. The surface of the busbar is smooth, and the groove is arranged to prevent the busbar from being adsorbed together with the cover plate 130 after being in contact with the cover plate 130.

[0037] In the utility model, the both sides of the cover plate 130 are equipped with the pressing plate 113, the pressing plate 113 is fixedly connected with the base 110, the edge of the pressing plate 113 presses the edge of the cover plate 130, and the contact surface of the cover plate 130 and the pressing plate 113 is all inclined surface. Since the cover plate 130 covers the groove 111, the cover plate 130 is not easy to be fixed directly with the base 110, so the cover plate 130 is fixed on the base 110 through the pressing plate 113.

[0038] As Figure 6 The utility model discloses still provide a kind of welding device, including drive mechanism 200, moving beam 300 and electromagnetic welding head 100, drive mechanism 200 is driven connection with moving beam 300 to drive moving beam 300 horizontal movement, electromagnetic welding head 100 is set on moving beam 300. Drive mechanism 200 can drive electromagnetic welding head 100 moves to target position and welds busbar and battery string. In the utility model, welding device has two kinds, the first kind of welding device, electromagnetic welding head 100 is below welding piece and is welded, electromagnetic welding head 100 can also carry welding piece welding machine and moves to target position;The second kind of welding device, electromagnetic welding head 100 is above welding piece and is welded, and electromagnetic welding head 100 can also press welding piece.

[0039] In the utility model, welding device further includes several adsorption components 400, adsorption component 400 includes the air block 410, suction cup seat 420 and suction cup 430 connected in sequence, electromagnetic welding head 100 is equipped with the avoidance passage that penetrates cover plate 130 and base 110, suction cup seat 420 extends into avoidance passage, and suction cup 430 is close to cover plate 130 and is set at the opening of avoidance passage, and several magnetic cores 120 are parallelly equipped, and several adsorption components 400 are set in the gap of several magnetic cores 120, and suction cup 430 is used to adsorb busbar. The first kind of welding device, electromagnetic welding head 100 carries busbar and moves to target position, and in the process, busbar is adsorbed and fixed by suction cup 430, can prevent busbar from moving relative to cover plate 130;The second kind of welding device, electromagnetic welding head 100 can also be used to adsorb and transport busbar.

[0040] Further, adsorption component 400 further includes the air cylinder 440 set on moving beam 300, and the air cylinder 440 is driven connection with the air block 410 to drive suction cup 430 lifting movement. Before welding, air cylinder 440 drives suction cup seat 420 to move, so that suction cup 430 is withdrawn into avoidance passage, to avoid that suction cup 430 contacts welding piece and accelerates aging.

[0041] The above-mentioned is only the preferred embodiment of the utility model, and of course cannot limit the right scope of the utility model, and the person skilled in the art can understand that all or part of the processes of the above-mentioned embodiment are implemented, and equivalent changes made according to the utility model claims still belong to the range covered by the utility model.

Claims

1. An electromagnetic welding head (100), characterized in that , comprising: a base (110), a magnetic core (120), a conductive tube (140), a first joint (150) and a second joint (160), the magnetic core (120) is arranged on the base (110), the conductive tube (140) is arranged around the magnetic core (120), the first end of the conductive tube (140) is connected with the first joint (150), the second end of the conductive tube (140) is connected with the second joint (160), and the conductive tube (140) has an inlet and an outlet for a cooling medium.

2. The electromagnetic welding horn (100) of claim 1, characterized in that: The first joint (150) is provided with a first channel in communication with the first end opening of the conductive tube (140), the second joint (160) is provided with a second channel in communication with the second end opening of the conductive tube (140), the first end opening of the conductive tube (140) is the inlet, and the second end opening of the conductive tube (140) is the outlet.

3. The electromagnetic welding horn (100) of claim 1, characterized in that: The conductive tube (140) comprises a first tube body (141) and a second tube body (142), the first end of the first tube body (141) and the first end of the second tube body (142) are connected with the first joint (150) and the second joint (160) respectively, and the second end of the first tube body (141) and the second end of the second tube body (142) are connected through an adapter (180); the first joint (150) is provided with a third channel in communication with the first end opening of the first tube body (141), the second joint (160) is provided with a fourth channel in communication with the first end opening of the second tube body (142), the adapter (180) is provided with a fifth channel in communication with the second end opening of the first tube body (141) and the second end opening of the second tube body (142), and the first end opening of the first tube body (141) and the first end opening of the second tube body (142) are the inlet, and the second end opening of the first tube body (141) and the second end opening of the second tube body (142) are the outlet.

4. The electromagnetic welding head (100) according to any one of claims 1-3, characterized in that: Further comprising a cover plate (130), the base (110) has a groove (111), the magnetic core (120) is installed in the groove (111), and the cover plate (130) is arranged at the opening of the groove (111).

5. The electromagnetic welding horn (100) of claim 4, characterized in that: An insulating member (170) is sleeved on the conductive tube (140), the space in the groove (111) not occupied by the magnetic core (120) is filled with sealant, a separation member (112) is arranged between the cover plate (130) and the sealant, and the separation member (112) covers the opening of the groove (111).

6. The electromagnetic welding horn (100) of claim 4, characterized in that: The surface of the cover plate (130) is provided with a groove.

7. The electromagnetic welding horn (100) of claim 4, characterized in that: Both sides of the cover plate (130) are provided with a pressing plate (113), the pressing plate (113) is fixedly connected with the base (110), the edge of the pressing plate (113) presses the edge of the cover plate (130), and the contact surfaces of the cover plate (130) and the pressing plate (113) are both inclined surfaces.

8. A welding device characterized by: The electromagnetic welding head (100) is arranged on the moving beam (300).

9. The welding device of claim 8, wherein: The electromagnetic welding head (100) is arranged on the moving beam (300).

10. The welding device of claim 9, wherein: The electromagnetic welding head (100) is arranged on the moving beam (300).

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