CN217433336U - A printing opacity compression fittings for photovoltaic terminal box laser welding - Google Patents
A printing opacity compression fittings for photovoltaic terminal box laser welding Download PDFInfo
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- CN217433336U CN217433336U CN202220550602.4U CN202220550602U CN217433336U CN 217433336 U CN217433336 U CN 217433336U CN 202220550602 U CN202220550602 U CN 202220550602U CN 217433336 U CN217433336 U CN 217433336U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
A light-transmitting pressing device for laser welding of a photovoltaic junction box is arranged corresponding to a welding station, and the photovoltaic junction box is positioned in the welding station; the light-transmitting pressing device comprises a supporting plate and a pressing piece, and the supporting plate and the pressing piece are both suspended above the welding station; the pressing piece is connected to the lower surface of the supporting plate; the pressing piece comprises a light-transmitting plate which is horizontally arranged and is driven to move in the vertical direction; the light transmission plate is located in a light path of the laser welding head, the laser welding head is suspended above the light transmission plate, and the light path penetrates through the light transmission plate downwards along the vertical direction and acts on a welding area of the photovoltaic junction box. Through the application of this printing opacity compression fittings, adopt the light-passing board to weld the whole welding surface of material and carry out the pressfitting of face and face, replaced traditional point-to-point pressfitting of tucking, avoided because the unsettled rosin joint that appears of welding area, promoted the welding effect greatly, reduced the defective rate of product.
Description
Technical Field
The utility model relates to a photovoltaic module's laser welding processing field, concretely relates to printing opacity compression fittings for photovoltaic terminal box laser welding.
Background
In the photovoltaic field, junction boxes are one of the commonly used components. The junction box is a connector between a solar cell array formed by the solar cell module and the solar charging control device. The solar photovoltaic module is mainly used for connecting and protecting the solar photovoltaic module, connecting the electric power generated by the solar cell with an external circuit and conducting the current generated by the photovoltaic module.
The welding of junction boxes has been developed from conventional manual electric iron welding to automatic welding, with laser welding being the most widely used. The laser welding equipment comprises a laser welding head and a pressing device, wherein in the welding process, a welding material needs to be pressed downwards through a pressing needle of the pressing device, the welding material is attached to a base material, and then the welding operation is performed on the welding material and the base material through the laser welding head. When the welding machine is specifically implemented, the two pressing pins respectively act on two sides of the welding material to tightly press the welding material. However, the conventional press-fitting device has the following disadvantages when used for a long time:
in order to avoid shielding interference on the welding light path of the laser welding head, the pressing pin of the pressing device needs to avoid the welding light path as much as possible, but the pressing pin can only be arranged on two sides of the welding material, and only can be in point contact with the surface of the welding material on two sides when the pressing action is carried out, so that the surface of the welding material cannot be pressed in an all-around manner. And this kind of point-to-point pressfitting often can lead to welding the middle part of material and swell, makes the middle part and the base metal of welding the material break away from the contact, constitutes welding area's unsettled, welds the material and can't fully laminate with the base metal, and then easily appears the rosin joint in welding process to influence the welding effect, lead to higher product defective rate.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The utility model aims at providing a printing opacity compression fittings for photovoltaic terminal box laser welding.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a light-transmitting pressing device for laser welding of a photovoltaic junction box is arranged corresponding to a welding station, and the photovoltaic junction box is positioned in the welding station;
the light-transmitting pressing device comprises a supporting plate and a pressing piece, and the supporting plate and the pressing piece are both suspended above the welding station; the pressing piece is connected to the lower surface of the supporting plate;
the pressing piece comprises a horizontally arranged light-transmitting plate which is arranged above the photovoltaic junction box and is driven to move in the vertical direction;
the light transmission plate is positioned in a light path of a laser welding head, the laser welding head is suspended above the light transmission plate, and the light path penetrates through the light transmission plate downwards along the vertical direction and acts on a welding area of the photovoltaic junction box.
The relevant content in the above technical solution is explained as follows:
1. in the above solution, the light-transmitting pressing device further includes a positioning member disposed below the supporting plate, and the positioning member includes at least one positioning pressing block disposed horizontally; the positioning pressing blocks are arranged below the supporting plate at intervals in the vertical direction and are arranged corresponding to the outer contour of the photovoltaic junction box; the positioning pressing block is driven to move in the vertical direction, the positioning pressing block is arranged corresponding to the outer contour of the junction box, the shell of the junction box is pressed downwards and stabilized in the welding process, and subsequent welding is facilitated.
2. In the above scheme, the pressing piece further comprises a first guide rod vertically arranged and a clamp sleeved on the first guide rod; the light transmission plate is connected below the clamp; the light transmission plate can be directly fixed below the clamp, and can also be combined below the clamp in a clamping, buckling and other modes, so that the light transmission plate can keep the stability of combination with the device and the levelness of the light transmission plate per se when working for a long time;
the pressing element also comprises a first spring which acts between the light-transmitting plate and the supporting plate and keeps the light-transmitting plate moving vertically downwards. The flexibility of the first spring is utilized to control the force when the light transmission plate is pressed down, so that the light transmission plate is not damaged, welding materials and base materials are not damaged, and meanwhile, a proper pressing force can be realized.
3. In the above scheme, the support plate is provided with a through hole, and the through hole is positioned in the light path of the laser welding head; an energy light source emitted by laser penetrates through the light-transmitting plate through the through hole to irradiate the welding material and the base material at the welding part below the light-transmitting plate, so that the welding material and the welding material are melted; besides the through holes, the through holes can be hollowed out or other designs which are convenient for the light path to pass through.
4. In the above scheme, the positioning element further comprises a second guide rod vertically arranged, and the second guide rod is connected between the positioning pressing block and the supporting plate; the positioning piece further comprises a second spring, and the second spring acts between the positioning pressing block and the supporting plate and enables the positioning pressing block to keep a vertical downward movement trend. By means of the flexibility of the second spring, the photovoltaic junction box can be well controlled without damaging the photovoltaic junction box while the fixing effect of the positioning pressing block on the outer contour of the photovoltaic junction box is met.
5. In the above scheme, the light-transmitting plate is a glass plate, and the light-transmitting plate can also be other organic transparent plastics. For guaranteeing the welding effect, the thickness and the material of the light-transmitting plate are based on the welding effect of guaranteeing the laser welding head, for example: the thickness of the light-transmitting plate can be adjusted according to the size of the focal length of the laser welding head, the welding energy intensity of the laser welding head and the like; for another example: the material of the light transmission plate can further ensure the requirement of durability on the premise of meeting the requirement of light transmission; these are the prior arts that can be grasped by those skilled in the art, and the description is omitted here since it is not the point of the present invention.
6. Among the above-mentioned scheme, still include at least one exhaust gas recovery device, this exhaust gas recovery device is even established the both sides of backup pad, exhaust gas recovery device has loudspeaker form gas collecting channel, and this gas collecting channel orientation the light-passing board sets up, and exhaust gas recovery device is used for retrieving the waste gas that produces when welding through the negative pressure, avoids waste gas to cause the pollution to the environment.
7. In the above solution, the light-transmitting pressing device further includes a driver, the driver is connected above the supporting plate and drives the supporting plate to move in the vertical direction, and the driver may be a cylinder, a motor or other device capable of driving the movement.
8. In the above scheme, the lower surface of light-passing board still superposes the flexible printing opacity buffer sheet of an EVA material, and this flexible printing opacity buffer sheet can also play the effect of buffering when the material and the base metal are welded under the light-passing board in the pressure under not influencing the welding effect, prevents that light-passing board or base metal from being crushed by pressure.
The working principle of the utility model is as follows:
a light-transmitting pressing device for laser welding of a photovoltaic junction box is arranged corresponding to a welding station, and the photovoltaic junction box is positioned in the welding station; the light-transmitting pressing device comprises a supporting plate and a pressing piece, and the supporting plate and the pressing piece are both suspended above the welding station; wherein the pressing piece is connected with the lower surface of the supporting plate; the pressing piece comprises a horizontally arranged light-transmitting plate which is arranged above the photovoltaic junction box and is driven to move in the vertical direction; the light transmission plate is positioned in a light path of a laser welding head, the laser welding head is suspended above the light transmission plate, and the light path penetrates through the light transmission plate downwards along the vertical direction and acts on a welding area of the photovoltaic junction box.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model following advantage has:
through printing opacity compression fittings's application, adopt the light-passing board to carry out the pressfitting contact of face with the face to the whole welding surface of welding material, no longer use traditional pressure pin to the point-to-point pressfitting contact of welding material both sides, avoid because the unsettled rosin joint that appears among the welding process that leads to of welding area, promoted the welding effect greatly, reduced the disqualification rate of product.
Drawings
Fig. 1 is a schematic structural view (front side view) of the photovoltaic junction box of the embodiment of the present invention when not pressed;
fig. 2 is a schematic structural view (front side view) of the photovoltaic junction box pressed according to the embodiment of the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2;
fig. 4 is a schematic structural view (side view) of the photovoltaic junction box pressed according to the embodiment of the present invention;
fig. 5 is an enlarged view of fig. 4 at B.
In the above drawings: 1. a photovoltaic junction box; 2. a second spring; 3. a welding station; 4. a support plate; 5. a pressing part; 6. a through hole; 7. a light-transmitting plate; 8. a positioning member; 9. positioning a pressing block; 10. a laser welding head; 11. a first guide bar; 12. a clamp; 13. a first spring; 14. a second guide bar; 15. an exhaust gas recovery device; 16. a driver; 16a, a cylinder; 17. flexible printing opacity buffer chip.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): the present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the disclosure may be shown and described, and which, when modified and varied by the techniques taught herein, can be made by those skilled in the art without departing from the spirit and scope of the disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms "a", "an", "the" and "the", as used herein, also include the plural forms.
The terms "first," "second," and the like, as used herein, do not denote any order or importance, nor do they denote any order or importance, but rather are used to distinguish one element from another element or operation described in such technical terms.
As used herein, "connected" or "positioned" refers to two or more elements or devices being in direct physical contact with each other or in indirect physical contact with each other, and may also refer to two or more elements or devices being in operation or acting on each other.
As used herein, "including," "comprising," "having," and the like are open-ended terms, i.e., meaning including, but not limited to.
As used herein, the term (terms), unless otherwise indicated, shall generally have the ordinary meaning as commonly understood by one of ordinary skill in the art, in this written description and in the claims. Certain words used to describe the disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the disclosure.
The terms "upper" and "lower" used herein are used as directional terms, and are used only for describing the positional relationship between the structures, and are not used to limit the protection scheme and the specific direction in practical implementation.
Referring to fig. 1-5, a light-transmitting laminating device for laser welding of a photovoltaic junction box is arranged corresponding to a welding station 3, and the photovoltaic junction box 1 is positioned in the welding station 3.
The light-transmitting pressing device comprises a supporting plate 4 and a pressing piece 5, and the two parts are suspended above the welding station 3; wherein the pressing part 5 is connected with the lower surface of the supporting plate 4; a through hole 6 is formed in the support plate 4, and the through hole 6 is positioned in the light path of the laser welding head 10; the energy light source emitted by the laser welding head 10 passes through the light transmission plate 7 through the through hole 6 and irradiates on the welding material and the base material at the welding part below the light transmission plate 7, so that the welding material and the base material are melted.
The pressing part 5 comprises a light-transmitting plate 7 which is horizontally arranged, and the light-transmitting plate 7 is a glass plate or other organic transparent plastics; the light transmitting plate 7 is arranged above the photovoltaic junction box 1 and is driven to move in the vertical direction; the lower surface of the light-transmitting plate 7 is also superposed with a flexible light-transmitting buffer sheet 17 made of EVA material, and the flexible light-transmitting buffer sheet 17 can play a role of buffering when the welding material and the base material are pressed under the light-transmitting plate 7 without influencing the welding effect, so that the light-transmitting plate 7 or the base material is prevented from being crushed.
The light-transmitting plate 7 is located in a light path (not shown in the figure) of a laser welding head 10, the laser welding head 10 is suspended above the light-transmitting plate 7, and the light path vertically passes through the through hole 6 and the light-transmitting plate 7 downwards and acts on a welding area of the photovoltaic junction box 1.
The pressing part 5 further comprises a first guide rod 11 vertically arranged and a clamp 12 sleeved on the first guide rod 11; the light transmission plate 7 is connected below the clamp 12; the press-fit element 5 further comprises a first spring 13, which first spring 13 acts between the light-transmitting plate 7 and the support plate 4 and maintains the tendency of the light-transmitting plate 7 to move vertically downwards.
The device also comprises a positioning piece 8 arranged below the supporting plate 4, wherein the positioning piece 8 comprises at least one positioning pressing block 9 arranged horizontally; the positioning pressing blocks 9 are arranged below the supporting plate 4 at intervals in the vertical direction, and the positioning pressing blocks 9 are arranged corresponding to the outer contour of the photovoltaic junction box 1; wherein, the positioning pressing block 9 is driven to move in the vertical direction. The positioning piece 8 further comprises a second guide rod 14 which is vertically arranged, and the second guide rod 14 is connected between the positioning pressing block 9 and the supporting plate 4; the positioning piece 8 further comprises a second spring 2, and the second spring 2 acts between the positioning pressing piece 9 and the supporting plate 4 and enables the positioning pressing piece 9 to keep a vertical downward movement trend.
Still include at least one exhaust gas recovery device 15, this exhaust gas recovery device 15 is even established the both sides of backup pad 4, exhaust gas recovery device 15 has loudspeaker form gas collecting channel, and this gas collecting channel orientation light-passing board 7 sets up, and exhaust gas recovery device 15 is used for retrieving the waste gas that produces when welding, avoids waste gas to cause the pollution to the environment.
The device also comprises a driver 16, wherein the driver 16 is connected above the support plate 4 and drives the support plate 4 to move in the vertical direction.
According to above-mentioned structural component, now just the utility model discloses a concrete theory of operation explains as follows:
when the photovoltaic junction box 1 is positioned on the welding station 3, the support plate 4 in the laser welding light-transmitting pressing device drives the pressing piece 5 and the positioning piece 8 to vertically and downwardly displace under the driving of the air cylinder 16, firstly, the pressing piece moves downwardly and overcomes the elasticity of the second spring 2, so that the positioning pressing block 9 on the positioning piece 8 is tightly contacted with the outer contour of the photovoltaic junction box 1, namely, the photovoltaic junction box 1 is positioned in the first step, and the welding area is conveniently welded in the subsequent step; the supporting plate 4 is continuously driven to press down and overcome the elastic force of the first spring 13, so that the light-transmitting plate 7 on the pressing piece 5 is tightly contacted with the welding material and the base material in the welding area.
Then the laser welding head 10 emits energy light source, which reaches the welding material and the base material in the welding area through the through hole 6 on the supporting plate 4 and the light-transmitting plate 7 on the pressing piece 5, so that the welding material and the base material are melted, then the light-transmitting plate 7 presses and flattens the melted welding surface under the action of the first spring 13, and after the welding is finished, the light-transmitting pressing device returns to the initial position.
Through the application of above-mentioned printing opacity compression fittings, adopt light-passing board 7 to weld the whole welding surface of material and carry out the pressfitting contact of face and face, compare in the point-to-point contact of prior art tucking, the utility model discloses a pressfitting effect is better, welds material and mother metal and can realize laminating completely, and then has avoided because the unsettled problem that leads to the rosin joint that appears in the welding process of welding region, has promoted welding effect and quality greatly, has improved the qualification rate of product.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. A light-transmitting pressing device for laser welding of a photovoltaic junction box is arranged corresponding to a welding station (3), and the photovoltaic junction box (1) is positioned in the welding station (3); the method is characterized in that:
the light-transmitting pressing device comprises a supporting plate (4) and a pressing piece (5), and the supporting plate and the pressing piece are both suspended above the welding station (3); wherein the pressing part (5) is connected with the lower surface of the supporting plate (4);
the pressing piece (5) comprises a light-transmitting plate (7) which is horizontally arranged, and the light-transmitting plate (7) is arranged above the photovoltaic junction box (1) and is driven to move in the vertical direction;
the light-transmitting plate (7) is located in a light path of a laser welding head (10), the laser welding head (10) is suspended above the light-transmitting plate (7), and the light path penetrates through the light-transmitting plate (7) downwards along the vertical direction and acts on a welding area of the photovoltaic junction box (1).
2. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: the positioning device is characterized by further comprising a positioning piece (8) arranged below the supporting plate (4), wherein the positioning piece (8) comprises at least one positioning pressing block (9) arranged horizontally; the positioning pressing blocks (9) are arranged below the supporting plate (4) at intervals in the vertical direction, and the positioning pressing blocks (9) are arranged corresponding to the outer contour of the photovoltaic junction box (1); wherein, the positioning pressing block (9) is driven to move in the vertical direction.
3. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: the pressing piece (5) further comprises a first guide rod (11) which is vertically arranged and a clamp (12) which is sleeved on the first guide rod (11); the light-transmitting plate (7) is connected below the clamp (12);
the press-fit element (5) further comprises a first spring (13), wherein the first spring (13) acts between the light-transmitting plate (7) and the support plate (4) and keeps the light-transmitting plate (7) in a vertical downward movement trend.
4. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: the supporting plate (4) is provided with a through hole (6), and the through hole (6) is positioned in the light path of the laser welding head (10).
5. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 2, characterized in that: the positioning piece (8) further comprises a second guide rod (14) which is vertically arranged, and the second guide rod (14) is connected between the positioning pressing block (9) and the supporting plate (4);
the positioning piece (8) further comprises a second spring (2), and the second spring (2) acts between the positioning pressing block (9) and the supporting plate (4) and enables the positioning pressing block (9) to keep a vertical downward movement trend.
6. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: the light-transmitting plate (7) is a glass plate.
7. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: still include at least one waste gas recovery device (15), this waste gas recovery device (15) are even established the both sides of backup pad (4), waste gas recovery device (15) have loudspeaker form gas collecting channel, this gas collecting channel orientation light-passing board (7) set up.
8. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: the device also comprises a driver (16), wherein the driver (16) is connected above the supporting plate (4) and drives the supporting plate (4) to move in the vertical direction.
9. A light-transmitting laminating device for laser welding of photovoltaic junction boxes according to claim 1, characterized in that: the lower surface of the light-transmitting plate (7) is also superposed with a flexible light-transmitting buffer sheet (17) made of EVA material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220550602.4U CN217433336U (en) | 2022-03-14 | 2022-03-14 | A printing opacity compression fittings for photovoltaic terminal box laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220550602.4U CN217433336U (en) | 2022-03-14 | 2022-03-14 | A printing opacity compression fittings for photovoltaic terminal box laser welding |
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| CN217433336U true CN217433336U (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220550602.4U Active CN217433336U (en) | 2022-03-14 | 2022-03-14 | A printing opacity compression fittings for photovoltaic terminal box laser welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319292A (en) * | 2022-10-14 | 2022-11-11 | 苏州智慧谷激光智能装备有限公司 | Laser welding method for junction box |
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2022
- 2022-03-14 CN CN202220550602.4U patent/CN217433336U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319292A (en) * | 2022-10-14 | 2022-11-11 | 苏州智慧谷激光智能装备有限公司 | Laser welding method for junction box |
| CN115319292B (en) * | 2022-10-14 | 2022-12-30 | 苏州智慧谷激光智能装备有限公司 | Laser welding method for junction box |
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