CN110340574B - welding device - Google Patents

welding device Download PDF

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Publication number
CN110340574B
CN110340574B CN201910595882.3A CN201910595882A CN110340574B CN 110340574 B CN110340574 B CN 110340574B CN 201910595882 A CN201910595882 A CN 201910595882A CN 110340574 B CN110340574 B CN 110340574B
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CN
China
Prior art keywords
welding
assembly
battery string
end lead
window
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CN201910595882.3A
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Chinese (zh)
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CN110340574A (en
Inventor
请求不公布姓名
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Wuxi Lead Intelligent Equipment Co Ltd
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Wuxi Lead Intelligent Equipment Co Ltd
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Priority to CN201910595882.3A priority Critical patent/CN110340574B/en
Publication of CN110340574A publication Critical patent/CN110340574A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08—Auxiliary devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

The application discloses a welding device. The welding device comprises a battery string conveying mechanism for conveying battery strings, an end lead conveying mechanism for conveying end leads and a welding mechanism for welding the end leads and the battery strings, wherein the end lead conveying mechanism comprises a bearing table and a lifting assembly, the bearing table is used for bearing the end leads, at least one window is formed in the bearing table, the end leads are partially exposed in the window, the lifting assembly is connected with and drives the bearing table to move towards the battery strings, the welding mechanism comprises a welding assembly, and the welding assembly realizes welding of the opposite end leads and the battery strings through the window. By arranging the battery string conveying mechanism, the end lead conveying mechanism and the welding assembly, the welding device provided by the application can automatically stack the end leads and the battery strings, and can rapidly weld the end leads and the battery strings, so that the welding efficiency is improved.

Description

Welding device
Technical Field
The application relates to the technical field of photovoltaic cell production equipment, in particular to a welding device.
Background
In the photovoltaic cell production process, the edge of a cell string formed by bonding a plurality of cells needs to be welded with a terminal lead to drain.
The existing welding device needs to stack the end lead and the battery string and then transfer the end lead and the battery string into the welding device for welding, so that the working efficiency is low, and the production requirement cannot be met.
Disclosure of Invention
The application mainly provides a welding device to solve the problem of low welding efficiency of the welding device.
In order to solve the technical problems, the application adopts a technical scheme that: a welding device is provided. The welding device comprises a battery string conveying mechanism for conveying battery strings, an end lead conveying mechanism for conveying end leads and a welding mechanism for welding the end leads and the battery strings, wherein the end lead conveying mechanism comprises a bearing table and a lifting assembly, the bearing table is used for bearing the end leads, at least one window is formed in the bearing table, the end leads are partially exposed in the window, the lifting assembly is connected with and drives the bearing table to move towards the battery strings, the welding mechanism comprises a welding assembly, and the welding assembly realizes welding of the opposite end leads and the battery strings through the window.
In a specific embodiment, the end lead transfer mechanism further comprises a translation assembly for driving the stage toward the welding assembly until a welding end of the welding assembly is exposed in the window; the bearing table is arranged at the output end of the lifting assembly, and the lifting assembly is arranged at the output end of the translation assembly; or (b)
The bearing table is arranged at the output end of the translation assembly, and the translation assembly is arranged at the output end of the lifting assembly.
In a specific embodiment, the battery string conveying mechanism comprises a conveying assembly and a detection device, the battery string moves towards the welding station through the conveying assembly, the detection device is arranged on a conveying path of the conveying assembly, and the detection device is used for detecting the position of the battery string so as to assist the conveying assembly to convey the battery string to the welding station.
In a specific embodiment, the welding assembly comprises a heating element, a welding box and a welding driving element, wherein the heating element is arranged in the welding box, the welding driving element is connected with and drives the welding box to move towards a welding station, an opening is formed in the upper end of the welding box, and a height Wen Chuanguo generated by the heating element is transmitted to the opening and the window and then is transmitted to the end lead and the battery string, so that welding is realized.
In a specific embodiment, the welding assembly further comprises a pressing needle, wherein the pressing needle is arranged in the welding box, and the pressing needle passes through the window to press the end lead wire and the battery string at the welding station.
In a specific embodiment, the welding box is connected with an exhaust pipe and/or an air supply pipe, the exhaust pipe is used for enabling hot air generated by welding to flow out, and the air supply pipe is used for introducing air into the welding box (122) to accelerate cooling of the welded end leads and the battery strings, and air blowing is carried out to accelerate cooling.
In a specific embodiment, the welding mechanism further comprises a pressing assembly, and the pressing assembly comprises a pressing piece and a pressing driving piece for driving the pressing piece to move towards the welding assembly.
In a specific embodiment, the pressing component further comprises an insulation box and an insulation box driving piece, the insulation box driving piece is connected with and drives the insulation box to move towards the welding component, the pressing piece is located in the insulation box, and the pressing driving piece penetrates through the insulation box and is connected with the pressing piece.
In a specific embodiment, the pressing assembly further comprises an air supply piece, and the air supply piece is used for blowing air to the welded end lead and the battery string to accelerate cooling.
In a specific embodiment, the press assembly further comprises a heater for heating the press member.
The beneficial effects of the application are as follows: the application discloses a welding device, which is different from the prior art. In the application, after the battery string is sent to a welding station through a battery string conveying mechanism, a lifting assembly drives a bearing table bearing an end lead to move towards the battery string until a part to be welded of the end lead is abutted against a part to be welded of the battery string, and then, the welding assembly welds the end lead and the battery string through a window on the bearing table. The welding device provided by the application realizes rapid stacking of the end lead and the battery string, rapid welding of the end lead and the battery string, and improves the welding efficiency.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a welding device according to an embodiment of the present application;
FIG. 2 is a schematic illustration of the welding apparatus of FIG. 1 with the normalization mechanism omitted for ease of reference;
FIG. 3 is a schematic view of the positional relationship between the carrier and the end leads in the soldering apparatus of FIG. 1;
fig. 4 is a schematic view of the structure of the pressing member, the carrying table, the elastic probe and the soldering box in the soldering apparatus of fig. 1.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," "third," and the like in embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a welding device according to the present application;
the welding device 100 includes a welding mechanism 10, a battery string conveying mechanism 20, and an end lead conveying mechanism 30, the battery string conveying mechanism 20 and the end lead conveying mechanism 30 convey the battery string 1 and the end lead 2 to a welding station, and the welding area on the battery string 1 and the welding area on the end lead 2 are stacked, and the welding mechanism 10 welds the end lead 2 to the battery string 1.
Specifically, the battery string conveying mechanism 20 is used to convey the battery string 1, the end lead conveying mechanism 30 is used to convey the end lead 2, and the welding mechanism 10 is used to weld the end lead 2 and the battery string 1.
It should be noted that, the "welding station" in the present application is specifically a position where the portion to be welded (i.e. the "welding area") of the battery string 1 is attached to the portion to be welded of the terminal lead 2, and more specifically, the welding end of the welding mechanism 10 is just the welding station, and when welding, the welding mechanism 10 will weld the portion where the battery string 1 and the terminal lead 2 overlap together at this station.
The end lead wire conveying mechanism 30 includes a carrying table 31 and a lifting assembly 32, the carrying table 31 is used for carrying the end lead wire 2, at least one window 310 is formed in the carrying table 31, the end lead wire 2 is partially exposed in the window 310, and the lifting assembly 32 is connected with and drives the carrying table 31 to move towards the battery string 1. To facilitate rapid stacking of the end leads 2 and the battery string 1, in one embodiment, the lift assembly 32 drives the carrier 31 in a vertical direction. Specifically, in the initial state, the carrying table 31 for carrying the end lead 2 to be soldered is located below the soldering station; after the carrying table 31 receives the end lead 2, the lifting assembly 32 drives the carrying table 31 to move upwards until the end lead 2 on the carrying table reaches the welding station and is abutted with the battery string 1. At this time, the terminal lead 2 and the battery string 1 are attached and the portion to be welded is exposed in the window 33. The welding mechanism 10 includes a welding assembly 12, and the welding assembly 12 performs welding of the opposite terminal lead 2 and the battery string 1 through a window 310.
Specifically, as shown in fig. 2, the lifting assembly 32 includes a lifting driving member 321 and a lifting guide member 322, the lifting guide member 322 is disposed toward the welding station, the carrying table 31 is slidably connected to the lifting guide member 322, and the lifting driving member 321 is connected to and drives the carrying table 31 to move along the lifting guide member 322. Wherein, the lifting guide 322 is preferably a guide rod arranged along the vertical direction, and the lifting driving member 321 is preferably an air cylinder.
Further, the end lead transfer mechanism 30 may further include a translation assembly 34, the translation assembly 34 being configured to drive the stage 31 toward the welding assembly 12, i.e., the translation assembly 34 being configured to drive the stage 31 in a horizontal direction until the welding end of the welding assembly 12 is exposed in the window 310. Through translation subassembly 34, can drive plummer 31 and keep away from welding subassembly 12, be convenient for outside material loading equipment (not shown) to plummer 31 delivery end lead wire 2. After the end leads to be welded are in place, the translation assembly 34 can in turn drive the carriage 31 closer to the welding assembly 12. The term "horizontal direction" in the present application does not mean a specific direction, and may be any direction within a horizontal plane, specifically, a left-right direction in fig. 1 or 2.
Specifically, the translation assembly 34 includes a translation driver 340 and a translation guide 341, the translation guide 341 being disposed toward the welding assembly 12, the translation driver 340 being coupled to the stage 31, the translation driver 340 driving the stage 31 to move along the translation guide 341. Wherein the translation driving member 340 is preferably an air cylinder, and the translation guiding member 341 is preferably a guide rail.
In some embodiments, the bearing table 31 is disposed at an output end of the lifting assembly 32, and the lifting assembly 32 is disposed at an output end of the translation assembly 34. Therefore, the lifting assembly 32 can directly drive the carrying platform 31 to move along the vertical direction, and the translation assembly 34 can drive the lifting assembly 32 to further drive the carrying platform 31 to move along the horizontal direction.
In other embodiments, the carrying table 31 is disposed at an output end of the translation assembly 34, and the translation assembly 34 is disposed at an output end of the lifting assembly 32. Therefore, the translation assembly 34 directly drives the carrying platform 31 to move along the horizontal direction, and the lifting assembly 32 can drive the translation assembly 34 to further drive the carrying platform 31 to move along the vertical direction.
In one embodiment, as shown in fig. 1 or fig. 2, when the end lead 2 to be welded is fed, the carrying table 31 is far away from the welding station and the welding mechanism 10, so that the feeding device (not shown) can conveniently carry the end lead 2 to be welded onto the carrying table 31. After the end lead 2 is in place, the translation assembly 34 drives the lifting assembly 32 and the carrying table 31 to move towards the welding assembly 12 with the end lead 2 until the welding end of the welding assembly 12 is exposed in the window 310, and at this time, the carrying table 31 is located right under the welding station. After the part to be welded of the battery string 1 reaches the welding station, the lifting assembly 32 drives the bearing table 31 to carry the end lead 2 to move towards the welding station until the part to be welded of the end lead 2 is attached to the part to be welded of the battery string 1.
Specifically, the battery string conveying mechanism 20 includes a conveying assembly 22, and the battery string 1 to be welded is moved toward the welding station via the conveying assembly 22.
In one embodiment, as shown in fig. 2, the conveyor assembly 22 is a conveyor belt assembly, which includes a driving wheel, a driven wheel, a conveyor belt sleeved on the driving wheel and the driven wheel, and a conveyor motor 21 for driving the driving wheel to rotate. Thereby, the conveying motor 21 can drive the driving wheel to rotate, and the driven wheel is driven to rotate by the conveying belt, so that the battery string 1 placed on the conveying belt is conveyed towards the welding station.
In other embodiments, the conveying assembly 22 may also adopt a structure of a plurality of conveying rollers in power linkage or a conveying platform in power driving motion, so long as the battery string 1 can be received and transferred to the welding platform, and the specific structure of the conveying assembly 22 is not limited in the present application.
Further, the battery string conveying mechanism 20 further includes a position detecting device 23, where the detecting device 23 is disposed on the conveying path of the conveying assembly 22, and the detecting device 23 is used to detect the position of the battery string 1 on the conveying assembly 22, so as to assist the conveying assembly 22 to accurately convey the battery string 1 to the welding station. Specifically, the position detecting device 23 is preferably a photoelectric sensor, and when the battery string 1 is conveyed to the welding station via the conveying assembly 22 and the position detecting device 23 is routed, the battery string 1 covers the signal of the position detecting device 23, and thereby the position detecting device 23 detects the presence of the battery string 1. Since the position detecting device 23 is fixedly disposed with respect to the welding station, it will be understood that the distance from the position detecting device 23 to the welding station is determined. Therefore, after the position detection device 23 detects that the battery string 1 appears, the distance from the end to be welded of the battery string 1 to the welding station is determined, the position detection device 23 transmits information to the control system, and the control system controls the transmission assembly 22 to continue to move forwards for a determined distance and then stop, so that the battery string 1 can be accurately conveyed to the welding station.
In the present application, the end lead wire conveying mechanism 30 further includes a aligning mechanism 35, the aligning mechanism 35 includes a first aligning member 350, the first aligning member 350 is disposed on the carrying platform 31 along the extending direction of the end lead wire 2, one side of the end lead wire 2 facing the first aligning member 350 abuts against the first aligning member 350, and the other side portion of the end lead wire 2 is exposed in the window 310.
Specifically, the first alignment member 350 is preferably a bump disposed on the carrier 31, and a side of the bump facing the window 310 is an alignment surface contacting the terminal lead 2. Further, since the side of the bump facing the window 310 extends horizontally along the extending direction of the end lead 2, and since both sides of the extending direction of the end lead 2 extend linearly, when the side of the extending direction of the end lead 2 is completely abutted against the gauge face, the end lead 2 is regulated, and is carried on the carrying table 31 in a fixed state. It should be noted that, the "extending direction of the terminal lead 2" according to the present application is the extending direction of the portion to be welded of the terminal lead 2, that is, the extending direction of the portion to be welded of the battery string 1, specifically, the extending direction of the terminal lead shown in fig. 3. While the portion of the end lead 2 exposed in the window 310 is mainly the portion of the end lead 2 to be soldered.
In one embodiment, the end leads 2 are carried by a loading device (not shown) onto the carrier 31. Specifically, the feeding equipment comprises a clamping assembly and a feeding driving assembly for driving the clamping assembly to move along the extending direction of the end lead 2, wherein the clamping assembly is used for clamping the end lead 2, and the feeding driving assembly drives the clamping assembly and the clamped end lead 2 to enter the bearing table 31. More specifically, the clamping assembly comprises an upper clamping plate, a lower clamping plate and a clamping driving piece for driving the upper clamping plate and the lower clamping plate to move relatively, the feeding driving assembly comprises a feeding driving piece (preferably a motor and a screw rod) and a feeding guide piece (preferably a guide rail) arranged along the extension direction of the end lead, the clamping assembly is in sliding connection with the feeding guide piece, and the feeding driving piece is connected with and drives the clamping assembly to move along the feeding guide piece. Therefore, when the end lead 2 is conveyed to the bearing table 31, the end lead 2 is clamped by the clamping assembly, and then the clamping assembly and the clamped end lead 2 are driven by the feeding driving member to drag the end lead 2 into the bearing table 31 along the feeding guiding member. After the end lead 2 is dragged into the bearing table 31, one side of the end lead 2 moves forwards along the alignment surface of the first alignment member 350 until the end lead 2 completely enters the bearing table 31, and at this time, the first alignment member 350 can perform alignment on the end lead 2 once, so that the position of the end lead 2 during feeding is relatively accurate.
The position and the posture of the end lead 2 after one-time alignment by the first alignment member 350 are adjusted, so that the subsequent overlapping posture of the end lead 2 and the battery string 1 more accords with the welding requirement, and the rejection of welded finished products caused by inaccurate positions of the end lead 2 is avoided, thereby improving the welding quality of the end lead 2 and the battery string 1.
Further, the alignment mechanism 35 further includes a second alignment member 351, a first alignment driving member 352 for driving the second alignment member 351 to move along a vertical direction, and a second alignment driving member 353 for driving the second alignment member 351 to move along a horizontal direction, so as to facilitate the movement of the second alignment member 351, preferably, the second alignment member 351 is disposed above the position where the carrying table 31 is located when the end lead 2 is fed. At this time, the carrying table 31 is located below the welding station and away from the welding mechanism 10 via the driving of the lifting assembly 32 and the shifting assembly 34. After the end lead 2 is fed onto the carrying table 31, the second correcting member 351 can extend into the window 310 under the driving of the first correcting driving member 351, and since the portion to be welded of the end lead 2 is exposed in the window 310, the second correcting member 351 can move towards the end lead 2 under the driving of the second correcting driving member 353 after extending into the window 310, until one side of the end lead 2 contacts and pushes against the first correcting member 350, and then the position of the end lead 2 is corrected.
Optionally, the second correcting member 351 is disposed at an output end of the first correcting driving member 352, and the first correcting driving member 352 is disposed at an output end of the second correcting driving member 353. Alternatively, the second regulation member 351 is provided at an output end of the second regulation driving member 353, and the second regulation driving member 353 is provided at an output end of the first regulation driving member 352. The first positive drive element 352 is preferably a cylinder, and the second positive drive element 353 is preferably a cylinder.
Further, since the end lead 2 has a certain length along the extending direction thereof, in order to better push each position of the extending direction of the end lead 2, the end lead is guaranteed to be completely abutted against the first alignment member 350, the second alignment member 351 may include a plurality of insert teeth, the plurality of insert teeth are arranged at intervals along the extending direction of the end lead 2, and the plurality of insert teeth push the end lead 2 to one side thereof against the first alignment member 350, thereby realizing alignment of the end lead 2 under the driving of the first alignment driving member 352 and the second alignment driving member 353.
In the present application, when the end lead 2 is fed, the feeding device conveys the end lead 2 to the carrying table 31 along the extending direction of the end lead 2, and one side of the end lead 2 is attached to the first alignment member 350 to enter the carrying table 31. After the end lead 2 completely enters the bearing table 31, the first correcting member 352 and the second correcting member 351 driven by the second correcting member 353 are lowered and extend into the window 310, and then move towards the end lead 2 to push the end lead 2 completely against the first correcting member 350. The first air holes 36 then hold the end leads 2, securing the end leads 2 to the carrier 31, facilitating the movement of the carrier 31, with the end leads 2, toward the bonding station by the lift assembly 32 and translation assembly 34.
Further, the bearing table 31 is provided with a plurality of first air holes 36, the plurality of first air holes 36 are arranged at intervals along the extending direction of the end lead 2, the bearing table 31 is communicated with air extraction equipment, the air extraction equipment extracts air from the bearing table 31, so that negative pressure is generated inside the bearing table 31, the end lead 2 is adsorbed through the first air holes 36, and the position of the end lead 2 on the bearing table 31 is fixed, so that welding is convenient to realize.
Further, the battery string 1 is attached to the end lead 2 on the carrying table 31 except for the portion to be welded, and also part of the battery string 1 is attached to the edge of the carrying table 31, so that the battery string 1 is convenient to weld in order to be further fixed, the carrying table 31 is further provided with a plurality of second air holes 37, the second air holes 37 are also arranged at intervals along the extending direction of the end lead 2, and the air extraction device extracts air from the carrying table 31, so that negative pressure is generated inside the carrying table 31, and the battery string 1 is adsorbed through the second air holes 37.
The first air hole 36 and the second air hole 37 are independently communicated with the air extracting device, and can independently realize the adsorption and release of the terminal lead 2 and the battery string 1 without mutual influence.
The operation of the welding device 100 is as follows: the battery string conveying mechanism 20 conveys the battery string 1 to the welding station, the translation assembly 34 conveys the end lead 2 positioned on the bearing table 31 to the lower side of the battery string 1, the window 310 on the bearing table 31 is aligned with the welding end of the welding assembly 12, the lifting assembly 32 drives the bearing table 31 to lift and enable the end lead 2 to be in partial overlapped contact with the battery string 1, and then the welding assembly 12 is welded through the window 310.
In the above operation, the operation of the battery string conveying mechanism 20 for conveying the battery strings 1 and the operation of the terminal lead conveying mechanism 30 for conveying the terminal leads 2 can be performed simultaneously, so as to improve the efficiency.
In the present application, referring to fig. 2 to 4, the welding assembly 12 includes a heating member 123, a welding box 122 and a welding driving member 120, the heating member 123 is disposed in the welding box 122, the welding driving member 120 is connected to and drives the welding box 122 to move towards the welding station, the upper end of the welding box 122 is opened, that is, the welding box 122 is a box body with an uncapped upper end, and the high temperature generated by the heating member 123 is transmitted to the end lead 2 and the battery string 1 through the opening and the window 310, thereby realizing welding.
Specifically, the heating element 123 adopts an infrared lamp tube, the temperature of the infrared lamp tube is high, and the temperature rise and the temperature drop are quick. The infrared lamp tube is arranged in the welding box 122, and the welding box 122 forms a semi-closed small space, so that the infrared lamp tube is convenient to install on one hand, and the heat preservation effect can be achieved on the other hand. During welding, the infrared lamp tube heats, the temperature in the welding box 122 can be quickly increased, and the welding box 122 surrounds the infrared lamp tube, so that heat leakage is avoided. The high temperature generated by the infrared lamp tube passes through the opening and passes through the window 310 to irradiate the joint part of the end lead 2 and the battery string 1, so that the welding is realized.
For facilitating welding, it is preferable that the heating member 123 and the welding box 122 are provided below the welding station, and the welding driving member 120 is used to drive the heating member 123 and the welding box 122 to move in the vertical direction. Specifically, the welding driving member 120 includes a driving member and a guide member disposed along a vertical direction, and the welding box 122 is slidably connected to the guide member, and the driving member is connected to and drives the welding box 122 to move along the guide member. The driving member is preferably a cylinder and the guiding member is preferably a guiding rod.
Further, the welding assembly 12 further comprises a pressing needle 121, and the pressing needle 121 is arranged in the welding box 122. When the battery string 1 is attached to the end lead 2, the battery string 1 is not necessarily fully pressed against the end lead 2, and if there is a gap between the battery string 1 and the end lead 2, welding is affected. Thus, the pressing needle 121 is provided for pressing the joint between the battery string 1 and the terminal lead 2, thereby ensuring successful welding. In one embodiment, two sets of infrared lamps are disposed in the welding box 122, and the pressing pin 121 is disposed between the two sets of infrared lamps. The plurality of press pins 121 are provided along the portion where the terminal lead 2 and the battery string 1 are bonded. During welding, the welding driver 120 drives the welding box 122 to move towards the window 310, and the pressing needle 121 penetrates through the window 310 to press the joint part of the end lead 2 and the battery string 1. When the infrared lamp tube is heated, heat is transferred to the joint part of the end lead 2 and the battery string 1 through the window 310, and finally the end lead 2 is welded on the battery string 1.
Further, the welding box 122 is connected to an exhaust pipe 124 for the hot gas generated by welding to flow out. Specifically, the exhaust tube 124 is communicated with an external air extraction device (not shown), and during welding, generated hot air is extracted by the air extraction device through the exhaust tube 124, so as to avoid over-welding caused by over-high temperature in the welding box 122.
Further, the welding box 122 is connected to the air supply pipe 125, the air supply pipe 125 is connected to an external air supply device (not shown), and after the welding is completed, the air supply device supplies air to the air supply pipe 125, and the air flow is blown to the welding position of the end lead 2 and the battery string 1 through the air supply pipe 125 to accelerate cooling. After the welding is finished, the welding position is required to be cooled, and after the welding position is ensured to be cooled, the battery string 1 welded with the end lead 2 can be fed. If the welding position is waiting for natural cooling, the waiting time is long, and the working efficiency is affected. By providing the air pipe 125 communicating with an external air supply device (not shown), the air is blown toward the window 310 after the welding is completed, and the cooling can be performed quickly.
Further, the air supply pipe 125 is connected to the lower part of the heating element 123, and may be connected to an air supply device, and the air is supplied to the air supply pipe 125 by the air supply device, and the air is blown to the heating element 123 to balance the heat emitted by the heating element 123, so as to improve the welding effect.
Further, as shown in fig. 1 and 2, the welding mechanism 10 further includes a pressing component 13, the welding component 12 and the pressing component 13 are spaced apart, and the welding station is located between the welding component 12 and the pressing component 13. The pressing assembly 13 comprises a pressing piece 132 and a pressing driving piece 130 for driving the pressing piece 132 to move towards the welding assembly 12, and the pressing driving piece 130 drives the pressing piece 132 to be close to the bearing table 31, so that the pressing needle 121 is convenient for pressing the end lead 2 and the battery string 1 on the pressing piece 132, and further, the end lead 2 and the battery string 1 can have better welding quality.
In this embodiment, as shown in fig. 3, the carrying platform 31 is provided with a plurality of windows 310, and the windows 310 are arranged at intervals along the extending direction of the end lead 2, so that the portion to be welded of the end lead 2 can be carried on the carrying platform 31, and most of the portion to be welded is exposed in the windows 310. Since the welding assembly 12 directly welds the end lead 2 from below the window 310, when the pressing pin 121 passes through the window 310 upward to press the end lead 2 and the battery string 1, the end lead 2 and the battery string 1 are not pressed due to the empty space above the battery string 1. Thus, the pressing assembly 13 is provided to provide a pressing platform for the pressing pin 121 to press the end lead 2 and the battery string 1.
In some embodiments, as shown in fig. 4, the pressing member 132 may further have a groove 133 thereon, and the groove 133 is used to avoid the battery string 1. That is, when the pressing driving member 130 drives the pressing member 132 to move toward the welding assembly 12 until the pressing member 132 approaches the end lead 2 and the battery string 1, the pressing member 132 can directly press the carrying table 310, and at this time, the battery string 1 on the carrying table 310 is located in the groove 133 and cannot be directly pressed by the pressing member 132, so that the pressing member 132 is prevented from crushing the battery string 1. Therefore, the pressing piece 132 is very close to the end lead 2 and the battery string 1, and when the pressing needle 121 presses the end lead 2 and the battery string 1 on the pressing piece 132, the pressing needle 121 can not push the end lead 2 and the battery string 1 far away from the bearing table 310, so that welding is prevented from being influenced.
Further, the pressing assembly 13 further includes an insulation box 134 and an insulation box driving member 135, the pressing driving member 130 passes through the insulation box 134 and is connected with the pressing member 132, the pressing member 132 is located in the insulation box 134, the insulation box driving member 135 is connected and drives the insulation box 134 to move towards the welding assembly 12, further, the pressing assembly 13 further includes an air supply member 137, the air supply member 137 is located in the insulation box 134, the air supply member 137 is communicated with an external air supply device (not shown), after welding is finished, the air supply device supplies air to the air supply member 137, and air flows are blown to the welding position of the terminal lead 2 and the battery string 1 through the air supply member 137, so as to accelerate cooling. Through setting up insulation can 134, on the one hand, be convenient for install air supply piece 137, on the other hand, during the welding, insulation can 134 can close over the stack region of end lead 2 and battery cluster 1 in plummer 31, and then the heat loss when avoiding the welding improves the utilization ratio of energy to improve the welding efficiency of end lead 2 and battery cluster 1. After the welding is finished, the pressing driving piece 130 drives the pressing piece 132 to be away from the end lead 2 and the battery string 1, and the air supply piece 137 directly blows air to the welding station to accelerate cooling. At the end of cooling, incubator drive 135 drives incubator 134 away from carrier 310.
Further, the pressing assembly 13 further includes a heater 136, and the heater 136 is disposed in the pressing member 132 and can heat the pressing member 132. The heater 136 can preheat the pressing member 132, and then the welding assembly 12 is matched to weld the battery string 1 and the end lead 2, so that the welding efficiency of the end lead 2 and the battery string 1 is further improved. The heater 136 is preferably a thermocouple.
The application discloses a welding device, which is different from the prior art. In the application, after the battery string is sent to a welding station through a battery string conveying mechanism, a lifting assembly drives a bearing table bearing an end lead to move towards the battery string until a part to be welded of the end lead is abutted against a part to be welded of the battery string, and then, the welding assembly welds the end lead and the battery string through a window on the bearing table. The welding device provided by the application realizes rapid stacking of the end lead and the battery string, rapid welding of the end lead and the battery string, and improves the welding efficiency.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (7)

1. A welding device is characterized by comprising a battery string conveying mechanism for conveying battery strings, an end lead conveying mechanism for conveying end leads, a welding mechanism for welding the end leads and the battery strings, a pressing and holding assembly and a regulating mechanism,
the end lead conveying mechanism comprises a bearing table, a lifting assembly and a translation assembly, wherein the bearing table is used for bearing the end lead, at least one window is formed in the bearing table, the end lead is partially exposed in the window, the lifting assembly is connected with and drives the bearing table to move towards the battery string, the welding mechanism comprises a welding assembly, the welding assembly is used for welding the end lead and the battery string through the window, and the translation assembly is used for driving the bearing table to move towards the welding assembly until the welding end of the welding assembly is exposed in the window;
the pressing assembly comprises a pressing part, a pressing driving part, an air supply part, an insulation box and an insulation box driving part, wherein the pressing driving part drives the pressing part to move towards the welding assembly;
the alignment mechanism comprises a first alignment member and a second alignment member, the first alignment member is arranged on the bearing table along the extending direction of the end lead, the second alignment member can move relative to the bearing table and is used for extending into the window to move towards the end lead, and then one side of the end lead is contacted and pushed to abut against the first alignment member.
2. The welding device of claim 1, wherein the bearing table is arranged at an output end of the lifting assembly, and the lifting assembly is arranged at an output end of the translation assembly; or the bearing table is arranged at the output end of the translation assembly, and the translation assembly is arranged at the output end of the lifting assembly.
3. The welding device of claim 1, wherein the battery string transport mechanism includes a transport assembly through which the battery string moves toward the welding station, and a detection device disposed on a transport path of the transport assembly for detecting a position of the battery string to assist the transport assembly in transporting the battery string to the welding station.
4. The welding device of claim 1, wherein the welding assembly comprises a heating element, a welding box and a welding driving element, the heating element is arranged in the welding box, the welding driving element is connected with and drives the welding box to move towards a welding station, an upper end of the welding box is opened, and a height Wen Chuanguo generated by the heating element is transmitted to the opening and the window and then is transmitted to the end lead and the battery string, so that welding is realized.
5. The welding device of claim 4, wherein the welding assembly further comprises a press pin disposed within the weld box, the press pin pressing the end lead and the battery string at the welding station through the window.
6. The welding device of claim 4, wherein the welding box is connected with an exhaust pipe and/or an air supply pipe, the exhaust pipe is used for flowing out hot air generated by welding, and the air supply pipe is used for blowing air to the welded end lead wire and the battery string to accelerate cooling.
7. The welding device of claim 1, wherein the press-on assembly further comprises a heater for heating the press-on member.
CN201910595882.3A 2019-07-03 2019-07-03 welding device Active CN110340574B (en)

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JP2005235971A (en) * 2004-02-19 2005-09-02 Nisshinbo Ind Inc Solder device of tab lead for solar battery containing flux coating function
CN105215535A (en) * 2015-11-08 2016-01-06 苏州辰正太阳能设备有限公司 A kind of solar battery sheet welding press holder
CN106425001A (en) * 2016-09-02 2017-02-22 深圳市新益昌自动化设备有限公司 Rail-type welding device and LED (Light Emitting Diode) reflow welding machine
CN107931904A (en) * 2017-12-21 2018-04-20 无锡奥特维科技股份有限公司 Lamination welder and battery strings repairing machine
CN109590642A (en) * 2018-12-07 2019-04-09 无锡先导智能装备股份有限公司 Welding equipment
CN208853887U (en) * 2018-08-14 2019-05-14 苏州库瑞奇自动化有限公司 A kind of automatic welding machine with double thermocompression bonding hair styles welding mould group
CN210359925U (en) * 2019-07-03 2020-04-21 无锡先导智能装备股份有限公司 Welding device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005235971A (en) * 2004-02-19 2005-09-02 Nisshinbo Ind Inc Solder device of tab lead for solar battery containing flux coating function
CN105215535A (en) * 2015-11-08 2016-01-06 苏州辰正太阳能设备有限公司 A kind of solar battery sheet welding press holder
CN106425001A (en) * 2016-09-02 2017-02-22 深圳市新益昌自动化设备有限公司 Rail-type welding device and LED (Light Emitting Diode) reflow welding machine
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CN210359925U (en) * 2019-07-03 2020-04-21 无锡先导智能装备股份有限公司 Welding device

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