CN203712078U - Novel laser welding head of series welding machine - Google Patents

Novel laser welding head of series welding machine Download PDF

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Publication number
CN203712078U
CN203712078U CN201320826542.5U CN201320826542U CN203712078U CN 203712078 U CN203712078 U CN 203712078U CN 201320826542 U CN201320826542 U CN 201320826542U CN 203712078 U CN203712078 U CN 203712078U
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CN
China
Prior art keywords
laser
welding head
conveyer belt
power unit
laser welding
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Expired - Fee Related
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CN201320826542.5U
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Chinese (zh)
Inventor
余辉
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Individual
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Individual
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Abstract

The utility model discloses a solar cell welding device and particularly relates to a novel laser welding head of a series welding machine. The novel laser welding head of the series welding machine is used for accurately welding a connecting strip and a solar cell and simultaneously fixing the connecting strip in a non-contact manner of gas blowing, and the mechanical stress and the thermal stress are controllable. The novel laser welding head comprises a transmission mechanism and a laser welding head mechanism; the transmission mechanism comprises a first power unit, a roller, a transmission belt, an adsorption plate, an adsorption air pipe and a pneumatic press, wherein the conveying belt is wound on the roller and relatively rotates under the power output of the first power unit; the adsorption plate is supported on the bottom part of the conveying belt; the conveying belt is provided with adsorption air holes at intervals in the movement direction; the adsorption plate is provided with a ventilation hole; one end of the adsorption air pipe is connected with the ventilation hole, and the other end of the adsorption air pipe is connected with the pneumatic press; the laser welding head mechanism comprises a semiconductor laser, a laser lifting device and a laser vibration camera; the laser lifting device is arranged at the bottom of the semiconductor laser.

Description

Novel series welding machine laser welding head
Technical field
The utility model relates to solar cell welding device technical field, particularly relates to a kind of novel series welding machine laser welding head.
Background technology
Now, in the production of photovoltaic module, solar battery sheet mostly adopts the welding methods such as induction brazing, infrared bonding, electromagnetic field of high frequency weldering, hot-air weldering or miniature gas brazing to be welded to connect band and is connected to each other, the upper and lower surface of solar battery sheet is respectively positive pole and negative pole, connecting band is generally copper strips, and the coated outside of copper strips has scolding tin, taking infrared bonding as example, in process, one side of connecting band is laid on to the positive top of last solar battery sheet, and expose the another side of connecting band, then a rear solar battery sheet is placed on to the adjacent position of last and is pressed in the top of connecting band another side, then these end to end multiple solar battery sheets are passed through to infrared soldering tip successively, under ultrared high temperature, make the scolding tin on connecting band melt, complete the welding of connecting band and solar battery sheet and solar battery sheet is cascaded mutually, but mechanical stress and thermal stress that above welding method produces solar battery sheet in its production process are larger and uncontrollable, taking infrared bonding as example, conventionally adopt the mode to whole solar battery sheet Double-side Heating, with complete solar battery sheet end face and bottom surface and connecting band time welding, and in welding process, connecting band and solar battery sheet need mechanical clamping, but under this mechanical grip effect, under integral high-temperature state, expanding with heat and contract with cold of solar battery sheet will easily cause breaking, especially solar battery sheet is now more and more thinner, above welding method will cause solar battery sheet breakage rate more and more higher.
Utility model content
For solving the problems of the technologies described above, the utility model provides one to be accurately welded to connect band and solar battery sheet, fixes the novel series welding machine laser welding head that mechanical stress and thermal stress are controlled simultaneously with the cordless of Gas injection.
Novel series welding machine laser welding head of the present utility model, comprises connecting gear and laser welding head mechanism; Described connecting gear comprises the first power unit, roll shaft, conveyer belt, adsorption plate, the gentle press of absorption tracheae, described conveyer belt is wrapped on described roll shaft and under the power output of described the first power unit and relatively rotates, the bottom support of described conveyer belt has described adsorption plate, on described conveyer belt along being arranged at intervals with absorption pore in the direction of motion, on described adsorption plate, be provided with passage, one end of described absorption tracheae is connected with described passage and the other end is connected with described aerostatic press;
Described laser welding head mechanism comprises semiconductor laser, laser instrument lowering or hoisting gear and laser galvanometer head, described laser galvanometer head is by the laser reflection of described semiconductor laser transmitting to described conveyer belt, and described laser instrument lowering or hoisting gear is arranged on the bottom of described semiconductor laser.
Concrete, described the first power unit comprises the first servomotor and is arranged on the reductor of described the first servomotor output, and described reductor is connected with described roll shaft.
Concrete, described absorption pore, is organized described absorption pore string to be arranged parallel to each other on described conveyer belt for absorption pore string along continuous arrangement in described conveyer belt direction more; Described passage is spaced at the below of described absorption pore string.
Further, also comprise servo-actuated dedusting mechanism, described servo-actuated dedusting mechanism comprises the second power unit, carriage, movable plate, air nozzle and air pump, one side of described movable plate is provided with laser and is provided with air nozzle by hole and in bottom, the opposite side of described movable plate under the power output of described the second power unit on described carriage relative sliding and the slip of described movable plate and the deflection of described laser galvanometer head cooperatively interact, described air nozzle is connected with described air pump by tracheae.
Concrete, described the second power unit is the second servomotor, the bottom of described movable plate is provided with sliding connection plate, the two bottom sides of described sliding connection plate is provided with slide block, described carriage comprises guide rail fixed plate, is set in parallel in guide rail and the ball screw of described guide rail fixed plate end face both sides, and described slide block is relative sliding on described guide rail; The bottom of described sliding connection plate is also provided with ball nut, and one end of described ball screw relatively rotates in described ball nut, the other end of described ball screw is connected with described the second servomotor by shaft coupling.
Compared with prior art the beneficial effects of the utility model are: when use, solar battery sheet is placed on the conveyer belt of connecting gear, under the suction function of the absorption pore bottom conveyer belt, firmly fixed and be sent to laser welding head mechanism bottom, then conveyer belt stops operation, subsequently, laser is sent by semiconductor laser, and under the reflection of laser galvanometer head, along welding scanning direction, scolding tin on welding is at high temperature melted, connecting band is welded on solar battery sheet, because laser can effectively limit position and the size of Ear Mucosa Treated by He Ne Laser Irradiation hot spot by hole, laser quasi is determined to position and is limited on connecting band, prevent that unnecessary laser beam is radiated on solar panel in welding process, this welding manner can't affect other position of solar battery sheet, and accuracy and security are higher, meanwhile, movable plate and laser scanning cooperative motion, the chip welding while under suction function, welding process is produced siphons away, to arrive the object of dedusting, it should be noted that, the suction function that siphons away chip herein can adopt various ways to realize, under normal circumstances, on movable plate, to be positioned at laser to be provided with suction hole by the rear in hole, suction hole is connected to reach the object of negative-pressure adsorption chip with air compressor machine by air intake duct, in addition, the downward air-flow that air nozzle produces also has the effect that is fixedly connected with band, in non-contacting mode, connecting band is fixed on solar battery sheet to complete welding process, effectively prevent solar battery sheet damage under mechanical stress.
Brief description of the drawings
Fig. 1 is the structural representation that adopts the series welding machine of novel series welding machine laser welding head of the present utility model.
Fig. 2 is the partial enlarged drawing of A portion in Fig. 1.
Fig. 3 is the upward view of connecting gear in the utility model.
Fig. 4 is the top view of connecting gear in the utility model.
Fig. 5 is the structural representation of servo-actuated dedusting mechanism in the utility model.
Fig. 6 is the top view of servo-actuated dedusting mechanism in the utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
As shown in Figures 1 to 5, novel series welding machine laser welding head of the present utility model, comprises connecting gear 1 and laser welding head mechanism 2, connecting gear comprises the first power unit, roll shaft 10, conveyer belt 11, adsorption plate 12, absorption tracheae 13 and aerostatic press, the first power unit generally includes the first servomotor 15 and is arranged on the reductor 16 of the first servomotor output, reductor 16 is connected with roll shaft 10, conveyer belt 11 is wrapped on roll shaft 10, and relatively rotate under the power output of the first power unit, the bottom support of conveyer belt 11 has adsorption plate 12, on conveyer belt 11, adsorb pore 14 along being arranged at intervals with in the direction of motion, on adsorption plate 12, be provided with passage, one end of absorption tracheae 13 is connected with passage, and the other end is connected with aerostatic press, in order to ensure good negative-pressure adsorption effect, absorption pore is absorption pore string along continuous arrangement in conveyer belt direction, many group absorption pore strings are arranged parallel to each other on conveyer belt, passage is spaced at the below of absorption pore string, adsorbing under normal circumstances pore string is three groups, lays respectively at both sides and the middle part of solar battery sheet, laser welding head mechanism 2 comprises semiconductor laser 21, laser instrument lowering or hoisting gear 22 and laser galvanometer head 23, and laser galvanometer head is by the laser reflection of semiconductor laser transmitting to conveyer belt, and laser instrument lowering or hoisting gear is arranged on the bottom of semiconductor laser.
In process due to laser weld, the a large amount of chips of inevitable generation, in order to remove these chips in welding, novel series welding machine laser welding head of the present utility model, also comprise servo-actuated dedusting mechanism 3, servo-actuated dedusting mechanism comprises the second power unit 30, carriage 31, movable plate 32, air nozzle 33 and air pump, one side of movable plate 32 is provided with laser by hole 34, and be provided with air nozzle 33 in bottom, the opposite side of movable plate 32 under the power output of the second power unit on carriage relative sliding, and the deflection of the slip of movable plate and laser galvanometer head cooperatively interacts, air nozzle 33 is connected with air pump by tracheae 35, it should be noted that, air nozzle be conventionally arranged on connecting band position on solar battery sheet directly over, the air-flow of air nozzle ejection has compression connecting band so that the effect of welding like this, the size of thrust realizes by adjusting air-flow size, the selection of the second power unit can be various, be generally the second servomotor, same, the sliding type of movable plate 32 on carriage also can be various, here only describe as an example of the mode of ball screw example, this is because the mode of ball screw can accurately be controlled the sliding distance of movable plate, the bottom of movable plate is provided with sliding connection plate 36, the two bottom sides of sliding connection plate 36 is provided with slide block, carriage comprises guide rail fixed plate 37, is set in parallel in guide rail 38 and the ball screw 39 of guide rail fixed plate end face both sides, and slide block is relative sliding on guide rail 38, the bottom of sliding connection plate is also provided with ball nut, and one end of ball screw 39 relatively rotates in ball nut, the other end of ball screw is connected with the second servomotor by shaft coupling 40.
As shown in Figure 2, when use, solar battery sheet 4 is placed on the conveyer belt 11 of connecting gear, is firmly fixed and be sent to laser welding head mechanism bottom under the suction function of the absorption pore bottom conveyer belt, and then conveyer belt stops operation, laser is sent by semiconductor laser subsequently, and under the reflection of laser galvanometer head 23, along welding 5 scanning directions, scolding tin on welding is at high temperature melted, connecting band is welded on solar battery sheet, laser can also effectively limit position and the size of Ear Mucosa Treated by He Ne Laser Irradiation hot spot by hole simultaneously, laser quasi is determined to position and is limited on connecting band, prevent that unnecessary laser beam is radiated on solar panel in welding process, this welding manner can't affect other position of solar battery sheet, accuracy and security are higher, in this process, size and the luminous intensity of the irradiation hot spot of laser on connecting band can also be controlled by laser instrument lowering or hoisting gear, under normal circumstances, after regulating laser instrument lowering or hoisting gear, just no longer change, after using until long-time, when safeguarding and calibrate, the luminous intensity of noise spectra of semiconductor lasers just adjusts, meanwhile, movable plate and laser scanning cooperative motion, the chip welding while under suction function, welding process is produced siphons away, to arrive the object of dedusting, it should be noted that, the suction function that siphons away chip herein can adopt various ways to realize, under normal circumstances, on movable plate, to be positioned at laser to be provided with suction hole 41 by the rear in hole, suction hole is connected to reach the object of negative-pressure adsorption chip with air compressor machine by air intake duct 42, the downward air-flow that air nozzle produces also has the effect that is fixedly connected with band, in non-contacting mode, connecting band is fixed on solar battery sheet to complete welding process, even if the size of solar battery sheet is thinner, also can effectively prevent solar battery sheet damage under mechanical stress.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.

Claims (5)

1. a novel series welding machine laser welding head, is characterized in that, comprises connecting gear and laser welding head mechanism; Described connecting gear comprises the first power unit, roll shaft, conveyer belt, adsorption plate, the gentle press of absorption tracheae, described conveyer belt is wrapped on described roll shaft and under the power output of described the first power unit and relatively rotates, the bottom support of described conveyer belt has described adsorption plate, on described conveyer belt along being arranged at intervals with absorption pore in the direction of motion, on described adsorption plate, be provided with passage, one end of described absorption tracheae is connected with described passage and the other end is connected with described aerostatic press;
Described laser welding head mechanism comprises semiconductor laser, laser instrument lowering or hoisting gear and laser galvanometer head, described laser galvanometer head is by the laser reflection of described semiconductor laser transmitting to described conveyer belt, and described laser instrument lowering or hoisting gear is arranged on the bottom of described semiconductor laser.
2. novel series welding machine laser welding head as claimed in claim 1, is characterized in that, described the first power unit comprises the first servomotor and be arranged on the reductor of described the first servomotor output, and described reductor is connected with described roll shaft.
3. novel series welding machine laser welding head as claimed in claim 1, is characterized in that, described absorption pore, is organized described absorption pore string to be arranged parallel to each other on described conveyer belt for absorption pore string along continuous arrangement in described conveyer belt direction more; Described passage is spaced at the below of described absorption pore string.
4. novel series welding machine laser welding head as claimed in claim 1, it is characterized in that, also comprise servo-actuated dedusting mechanism, described servo-actuated dedusting mechanism comprises the second power unit, carriage, movable plate, air nozzle and air pump, one side of described movable plate is provided with laser and passes through hole, and be provided with air nozzle in bottom, the opposite side of described movable plate under the power output of described the second power unit on described carriage relative sliding, and the deflection of the slip of described movable plate and described laser galvanometer head cooperatively interacts, described air nozzle is connected with described air pump by tracheae.
5. novel series welding machine laser welding head as claimed in claim 4, it is characterized in that, described the second power unit is the second servomotor, the bottom of described movable plate is provided with sliding connection plate, the two bottom sides of described sliding connection plate is provided with slide block, described carriage comprises guide rail fixed plate, is set in parallel in guide rail and the ball screw of described guide rail fixed plate end face both sides, and described slide block is relative sliding on described guide rail; The bottom of described sliding connection plate is also provided with ball nut, and one end of described ball screw relatively rotates in described ball nut, the other end of described ball screw is connected with described the second servomotor by shaft coupling.
CN201320826542.5U 2013-12-16 2013-12-16 Novel laser welding head of series welding machine Expired - Fee Related CN203712078U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320826542.5U CN203712078U (en) 2013-12-16 2013-12-16 Novel laser welding head of series welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320826542.5U CN203712078U (en) 2013-12-16 2013-12-16 Novel laser welding head of series welding machine

Publications (1)

Publication Number Publication Date
CN203712078U true CN203712078U (en) 2014-07-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107914086A (en) * 2017-12-22 2018-04-17 君泰创新(北京)科技有限公司 A kind of solar cell busbar welder
CN109014636A (en) * 2018-08-01 2018-12-18 张祖红 A kind of battery string welding machine based on negative-pressure adsorption mechanism
CN113843502A (en) * 2020-06-28 2021-12-28 武汉帝尔激光科技股份有限公司 Solar cell module laser welding equipment and welding method thereof
CN114799401A (en) * 2022-06-23 2022-07-29 苏州小牛自动化设备有限公司 Series welding machine for processing semiconductor battery piece

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107914086A (en) * 2017-12-22 2018-04-17 君泰创新(北京)科技有限公司 A kind of solar cell busbar welder
EP3503219A1 (en) * 2017-12-22 2019-06-26 Beijing Juntai Innovation Technology Co., Ltd Device for welding a bus bar of solar cell
CN109014636A (en) * 2018-08-01 2018-12-18 张祖红 A kind of battery string welding machine based on negative-pressure adsorption mechanism
CN113843502A (en) * 2020-06-28 2021-12-28 武汉帝尔激光科技股份有限公司 Solar cell module laser welding equipment and welding method thereof
CN114799401A (en) * 2022-06-23 2022-07-29 苏州小牛自动化设备有限公司 Series welding machine for processing semiconductor battery piece

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140716

Termination date: 20161216

CF01 Termination of patent right due to non-payment of annual fee