Utility model content
The utility model first aspect provides a kind of ultrasonic welding institution, is hinged with alleviating supersonic welding in the related technology
It sets and realizes that busbar is connect with back electrode of thin film solar cell using the method for Pressure Welding, there is technical issues that.
Ultrasonic welding institution provided by the utility model includes:
Generate the supersonic generator of ultrasonic wave;
The ultrasonic wave is transmitted, and changes the ultrasonic variable amplitude bar of vibration amplitude;
Busbar, is welded in the welding group of thin-film solar cells by the ultrasonic wave for receiving the ultrasonic variable amplitude bar transmitting
Part;
Auxiliary heats the heating component of the weld assembly.
Further, the weld assembly includes welding roll, and the welding roll and the ultrasonic variable amplitude bar rotate
Connection, the heating component are set to the welding roll.
Further, the end face of the welding roll is equipped with holding tank, circumferential direction of the holding tank along the welding roll
Extend, the heating component is set in the holding tank.
Further, the heating component includes resistance wire, and the resistance wire is set to the holding tank.
Further, the welding roll includes interconnecting piece and weld part, the weld part in a ring, the interconnecting piece with
The ultrasonic variable amplitude bar rotation connection, the weld part are sheathed on the interconnecting piece;
The heating component be set between the interconnecting piece and the weld part, and respectively with the interconnecting piece and the weldering
Socket part connection.
Further, the heating component includes more resistance wires, circumferential direction of the more resistance wires along the weld part
It is spaced apart, the both ends of the resistance wire are connect with the interconnecting piece and the weld part respectively.
Further, the ultrasonic welding institution further includes supporting table, and the supporting table has supporting surface, the ultrasound
The axis of wave amplitude transformer is parallel with the supporting surface.
On the other hand the utility model provides a kind of ultrasonic brazing unit, be hinged with alleviating supersonic welding in the related technology
It sets and realizes that busbar is connect with back electrode of thin film solar cell using the method for Pressure Welding, there is technical issues that.
Ultrasonic brazing unit provided by the utility model includes above-mentioned ultrasonic welding institution.
Further, the ultrasonic brazing unit further includes walking mechanism, the ultrasonic wave of the ultrasonic welding institution
Generator is installed on the walking mechanism.
Further, the walking mechanism includes driving assembly and support component, the driving component and the support group
Part transmission connection.
Busbar is welded in thin-film solar cells, busbar by ultrasonic welding institution provided by the utility model
It is placed in the back electrode of thin-film solar cells, supersonic generator generates high-frequency vibration, and ultrasonic variable amplitude bar transmits vibration
To weld assembly, weld assembly transmits these vibrations to busbar and thin-film solar cells, and weld assembly is pressed on busbar, converges
Stream item and thin-film solar cells contact surface phase mutual friction and form the fusion between molecular layer;Meanwhile heating component butt welding
Connected components are heated, and weld assembly transfers heat to busbar and thin-film solar cells, are conducive to busbar and film
The fusion of solar battery.
Compared with the relevant technologies, ultrasonic welding institution provided by the utility model will shake and heat acts on remittance simultaneously
Flow item and solar battery, be conducive to the fusion of busbar and thin-film solar cells, prevent rosin joint, improve busbar with
The bonding strength of thin-film solar cells;In addition, ultrasonic welding institution provided by the utility model once complete busbar with
The welding of thin-film solar cells, while reducing cost and process complexity.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection;It can be mechanical connection, be also possible to be electrically connected;Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Ultrasonic welding institution provided by the embodiment of the utility model includes:
Generate the supersonic generator of ultrasonic wave;
Ultrasonic wave is transmitted, and changes the ultrasonic variable amplitude bar 100 of vibration amplitude;
The ultrasonic wave that ultrasonic variable amplitude bar 100 transmits is received, busbar 500 is welded in thin-film solar cells 400
Weld assembly;
The heating component of auxiliary heating weld assembly.
Ultrasonic variable amplitude bar 100 is connect with supersonic generator and weld assembly respectively, and ultrasonic variable amplitude bar 100 is used for will
The particle displacement of mechanical oscillation or speed amplification, and ultrasonic energy is concentrated on lesser area.Supersonic generator generates
Vibration weld assembly is transferred to by ultrasonic variable amplitude bar 100, weld assembly makes busbar 500 and thin-film solar cells
400 phase mutual friction, to make the fusion for forming molecular layer between contact surface.
Further, weld assembly includes welding roll 200, and welding roll 200 and the rotation of ultrasonic variable amplitude bar 100 connect
It connects, heating component is set to welding roll 200.
As shown in Figure 1, welding roll 200 is located at one end of ultrasonic variable amplitude bar 100, welding roll 200 by bearing with
Ultrasonic variable amplitude bar 100 is rotatablely connected, and the axis of ultrasonic variable amplitude bar 100 is overlapped with the axis of welding roll 200;Welding roll
200 outer peripheral surface is smooth arcwall face.
Heating component is set to the end face of welding roll 200, and heating component is heated by electrically heated mode, welding roll
200 are made from a material that be thermally conductive, and for the heat transfer that heating component generates to the periphery of welding roll 200, welding roll 200 will be warm
Amount is transferred to busbar 500 and thin-film solar cells 400.
Welding roll 200 is pressed on busbar 500, while will vibration and heat transfer to busbar 500 and the film sun
Energy battery 400, welding roll 200 are rolled along the length direction of busbar 500, and busbar 500 is welded in thin film solar electricity
Pond 400, welding roll 200 is continuously contacted with busbar 500, compared with spot welding in the related technology, avoids 500 part of busbar
Position does not contact with weld assembly and influences bonding strength;Furthermore welding roll 200 is without lifting and falling repeatedly, operating process
Simply.
Alternatively, more as shown in Fig. 2, the periphery of welding roll 200 is equipped with multiple solder-bumps 201
A solder-bump 201 is divided to the circumferentially-spaced distribution for being the solder-bump 201 in two groups, every group along welding roll 200, and in two groups
Solder-bump 201 be staggered.
Solder-bump 201 is contacted with busbar 500 in welding process, the portion for keeping busbar 500 opposite with solder-bump 201
Divide and is connect with thin-film solar cells 400.
Further, the end face of welding roll 200 is equipped with holding tank, and holding tank adds along the circumferentially extending of welding roll 200
Hot component is set in holding tank.
As shown in Figure 1, holding tank is in a ring, the axis of holding tank is overlapped with the axis of welding roll 200, along welding roll
The width of 200 circumferential direction, holding tank is equal, to make the side wall of holding tank being equidistant to the periphery of welding roll 200.
Heating component is located in holding tank, heating component along holding tank circumferentially extending, and with holding tank close to welding roll
Take turns the side wall contact of 200 peripheries.
The heat that heating component generates is transmitted along the radial direction of welding roll 200, along the circumferential direction of welding roll 200, holding tank
The periphery of side wall to welding roll 200 be equidistant, be heated evenly the periphery of welding roll 200, welding roll
200 periphery is contacted with the different piece of busbar 500, and each position of busbar 500 is heated evenly, and is avoided because of busbar
500 are heated irregular and influence welding quality.
Further, heating component includes resistance wire 300, and resistance wire 300 is set to holding tank.
Resistance wire 300 is around in holding tank along the circumferential disc of welding roll 200, and is contacted with the side wall of holding tank;Heating
Component further includes energization element, and energization element is connect with resistance wire 300, for electric energy to be transferred to resistance wire 300, resistance wire
300 heats generated heat welding roll 200, to make welding roll 200 to busbar 500 and thin film solar electricity
It heats in pond 400.
As another embodiment, welding roll 200 includes interconnecting piece 210 and weld part 220, and weld part 220 is in ring
Shape, interconnecting piece 210 and ultrasonic variable amplitude bar 100 are rotatablely connected, and weld part 220 is sheathed on interconnecting piece 210;
Heating component is set between interconnecting piece 210 and weld part 220, and is connected respectively with interconnecting piece 210 and weld part 220
It connects.
Interconnecting piece 210 is cylindrical, and interconnecting piece 210 is rotatablely connected by bearing and ultrasonic variable amplitude bar 100, interconnecting piece
210 axis is overlapped with the axis of ultrasonic variable amplitude bar 100;Weld part 220 is annular in shape, and is sheathed on the outer of interconnecting piece 210
The axis in portion, weld part 220 is overlapped with the axis of interconnecting piece 210, along the circumferential direction of weld part 220, the thickness phase of weld part 220
Deng.
Heating component is connect with the internal perisporium of the periphery of interconnecting piece 210 and weld part 220 respectively, and heating component is for branch
Weld part 220 is held, and weld part 220 is heated.
The heat transfer that heating component generates is transferred to welding along the radial direction of weld part 220 to the internal perisporium of weld part 220
The periphery wall in portion 220, along the circumferential direction of weld part 220, the internal perisporium of weld part 220 between the periphery wall of weld part 220 away from
From equal, it is heated evenly the periphery of weld part 220, the different piece of the periphery wall and busbar 500 of weld part 220 connects
Touching, each position of busbar 500 is heated evenly, avoid because busbar 500 be heated it is irregular due to influence welding quality.
Further, heating component includes more resistance wires 300, and more resistance wires 300 are along the circumferentially-spaced of weld part 220
Distribution, the both ends of resistance wire 300 are connect with interconnecting piece 210 and weld part 220 respectively.
As shown in figure 3, more resistance wires 300 are respectively positioned between interconnecting piece 210 and weld part 220, multiple 300 edges of resistance wire
The circumferential direction of interconnecting piece 210 is uniformly distributed, and radial line side of the length direction of every resistance with interconnecting piece 210 and weld part 220
To identical;More resistance wires 300 are used to support weld part 220, and by the heat transfer of generation to weld part 220.
Heating component further includes energization element, and energization element is connect with more resistance wires 300 respectively, for transmitting electric energy
To resistance wire 300, the heat transfer that resistance wire 300 generates is then passed to weld part 220 to the internal perisporium of weld part 220
Periphery wall.
Weld part 220 is supported in the periphery of interconnecting piece 210 by resistance wire 300, while playing support and heating weld part 220
Effect mitigate the quality of welding roll 200 without being separately provided supports support weld part 220.
Further, ultrasonic welding institution further includes supporting table, and supporting table has supporting surface, ultrasonic variable amplitude bar 100
Axis it is parallel with supporting surface.
Supporting surface is horizontally disposed;In welding process, thin-film solar cells 400 is placed in supporting surface, and busbar 500 is placed in thin
On film solar cell 400, supporting table support film solar battery 400 and busbar 500 are horizontal positioned;As shown in Figure 1, weldering
It connects idler wheel 200 to be placed on busbar 500, the length direction of ultrasonic variable amplitude bar 100 is vertical with the length direction of busbar 500.
Welding roll 200 is adjusted to the pressure of busbar 500, drives welding roll 200 along busbar by ultrasonic variable amplitude bar 100
500 length direction rolls, and busbar 500 is welded in thin-film solar cells 400.
On the other hand the utility model embodiment provides a kind of ultrasonic brazing unit, to alleviate ultrasonic wave in the related technology
Welder realizes the connection of busbar 500 and film back electrode using the method for Pressure Welding, there is technical issues that.
Ultrasonic brazing unit provided by the embodiment of the utility model includes above-mentioned ultrasonic welding institution.
Further, ultrasonic brazing unit further includes walking mechanism, the supersonic generator peace of ultrasonic welding institution
Loaded on walking mechanism.
Walking mechanism is located at the side of supporting table and is spaced apart, and walking mechanism linearly moves;Ultrasonic wave occurs
Device is installed in walking mechanism, and ultrasonic variable amplitude bar 100 is located at supersonic generator close to the side of supporting table, and and ultrasonic wave
Generator connection, welding roll 200 are installed on one end of the separate supersonic generator of ultrasonic variable amplitude bar 100.
When welding, the length direction of busbar 500 and the moving direction of walking mechanism are parallel, and walking mechanism drives welding rolling
Wheel 200 is rolled along the length direction of busbar 500, is automatically performed welding.
Further, walking mechanism includes driving assembly and support component, and driving assembly and support component are sequentially connected.
Driving assembly includes that motor, transmission belt and two belt wheels, support component include support frame and guide rail;Two belt wheel branch
It supports in the both ends of transmission belt, transmission belt and support frame are sequentially connected, and motor is connect with wherein one end belt wheel transmission;The length of guide rail
Direction is parallel with the length direction of transmission belt, and support frame is equipped with the guide pad being slidably matched with guide rail;Supersonic generator installation
In support frame.
In welding process, motor driven belts wheel rotation, belt wheel drives transmission belt rotation, and transmission belt drives support frame and ultrasound
Wave producer is moved along the extending direction of guide rail, so that welding roll 200 be made to roll from busbar 500, completes automatic welding.
Busbar 500 is welded in thin film solar electricity by ultrasonic brazing unit provided by the embodiment of the utility model
Pond 400, busbar 500 are placed in the back electrode of thin-film solar cells 400, and supersonic generator generates high-frequency vibration, ultrasound
Wave amplitude transformer 100 transmits these vibrations to weld assembly, and weld assembly transmits these vibrations to busbar 500 and thin-film solar cells
400, weld assembly is pressed on busbar 500, busbar 500 and 400 contact surface phase mutual friction of thin-film solar cells and shape
Fusion between Component Sub-Layer;Meanwhile heating component heats weld assembly, weld assembly transfers heat to busbar
500 and thin-film solar cells 400, be conducive to the fusion of busbar 500 and thin-film solar cells 400.
Compared with the relevant technologies, ultrasonic welding institution provided by the embodiment of the utility model will shake and heat is made simultaneously
For busbar 500 and thin-film solar cells 400, be conducive to the fusion of busbar 500 and thin-film solar cells 400, prevent
Rosin joint is only generated, the bonding strength of busbar 500 and thin-film solar cells 400 is improved;In addition, the utility model embodiment mentions
The ultrasonic welding institution of confession once completes the welding of busbar 500 Yu thin-film solar cells 400, without to secondary weldering in turn
It connects, reduces cost and process complexity;In addition, without come generation the case where reducing rosin joint, being avoided by way of pressurization because of pressure
Power is excessive to damage busbar 500.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System;Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced;And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.