CN213437902U - Solar cell welding device and welding head thereof - Google Patents
Solar cell welding device and welding head thereof Download PDFInfo
- Publication number
- CN213437902U CN213437902U CN202021724385.3U CN202021724385U CN213437902U CN 213437902 U CN213437902 U CN 213437902U CN 202021724385 U CN202021724385 U CN 202021724385U CN 213437902 U CN213437902 U CN 213437902U
- Authority
- CN
- China
- Prior art keywords
- welding
- welding head
- leaf spring
- main body
- pressing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a solar wafer welding set and soldered connection that is used for this welding set relates to solar wafer welding technology field. The welding head comprises a welding head main body and a pressing plate, wherein the welding head main body is connected with the pressing plate through elastic deformation of a leaf spring, so that when the pressing plate descends/ascends, the distance between the welding head main body and the pressing plate changes under the action of the leaf spring. The utility model provides a pair of solar wafer welding set and soldered connection that is used for this welding set can avoid compressing tightly the subassembly card and die, improves production efficiency, reduces the fragment rate of battery piece, eliminates the potential safety hazard.
Description
Technical Field
The utility model relates to a solar wafer welds technical field, especially relates to a solar wafer welding set and is used for this welding set's soldered connection.
Background
The development of photovoltaic technology has promoted the growth of the industry related to solar cells, and the demand for solar devices has increased. In the production process of the solar cell module, the cell sheets need to be welded into the cell strings through the welding strips, and then the cell strings are arranged in order. The solder strip is also called tin-plated copper strip or tin-plated copper strip, and is divided into bus bar and interconnecting bar.
At present, in order to improve the welding precision and the welding effect of welding the area, can set up on welding set and compress tightly the subassembly to realize the promotion of welding precision and welding effect through the positioning effect who compresses tightly the subassembly. However, the existing pressing assembly often causes hidden cracks to the battery piece or directly crushes the battery piece in use, and the welding quality of the welding strip for installing the battery piece is influenced.
Therefore, the research on a novel welding head structure and a solar cell welding device for solving the problem that the cell is hidden or directly crushed due to the compression assembly of the cell welding device is of great significance.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model discloses a main aim at provides a solar wafer welding set and be used for this welding set's soldered connection to it is dead to avoid compressing tightly the subassembly card, improves production efficiency, reduces the fragment rate of battery piece, eliminates the potential safety hazard.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a welding head for welding a solar cell comprises a welding head main body and a pressing plate, wherein the welding head main body and the pressing plate are connected through elastic deformation of a leaf spring, so that when the pressing plate descends/ascends, the distance between the welding head main body and the pressing plate is changed under the action of the leaf spring.
Optionally, the leaf spring is a straight leaf spring or a bent leaf spring.
Optionally, the cross-section of the leaf spring is rectangular, trapezoidal or triangular.
Optionally, one side of the leaf spring is connected with the pressure plate through a fastener, and the other side of the leaf spring is connected with the welding head main body through a fastener.
Optionally, the leaf spring includes a first elastic piece, a second elastic piece and a connecting plate, a first end of the connecting plate is connected with the pressing plate through the first elastic piece, and a second end of the connecting plate is connected with the welding head main body through the second elastic piece.
Optionally, the first elastic sheet and the second elastic sheet are both provided with hollow holes.
Optionally, the first spring plate is connected with the pressure plate through a fastener, and the second spring plate is connected with the welding head main body through a fastener.
Optionally, the leaf spring is a metal elastic leaf.
The utility model also provides a solar wafer welding set, including being used for welding the welding mechanism of taking welding to the main grid line of battery piece, welding mechanism adopts as before the soldered connection.
The utility model provides a pair of be used for solar wafer welded soldered connection, with the soldered connection main part with the clamp plate passes through leaf spring elastic deformation and connects for the clamp plate pushes down and drives the soldered connection main part and descend, and the soldered connection main part is contradicted and is pressed the back on the battery piece, and leaf spring takes place elastic deformation, flattens battery piece and solder strip, the compaction, then carries out the heating welding. The mode that the guide hole, the pin and the spring sleeved on the pin are adopted for buffering between the pressing assembly of the traditional welding head and the welding head main body is avoided, the pin is easy to deform due to thermal expansion, the pin is clamped in the guide hole, and the pressing plate presses downwards to bring hidden cracks or direct crushing potential safety hazards to the battery piece.
The utility model provides a pair of solar wafer welding set, its soldered connection long service life, difficult breaking down can avoid compressing tightly the subassembly card dead, improves production efficiency, reduces the fragment rate of battery piece, eliminates the potential safety hazard.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a welding head for welding a solar cell according to an embodiment of the present invention;
fig. 2 is a schematic view of the installation of a solar cell and a solder strip after welding by the solar cell welding device according to the embodiment of the present invention;
FIG. 3 is a schematic view of a weld head in another embodiment;
fig. 4 is a schematic structural view of a welding head in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The inventor of the utility model finds that: a welding head of a traditional solar cell welding device is in a spring buffering type, namely a guide hole is formed in a pressing plate, a pin is arranged in the guide hole, a spring is sleeved on the pin, and the pressing plate is connected with a welding head main body through the pin. When the pressing plate is pressed downwards, the spring is compressed and contracted to drive the welding head main body to descend, the pressing plate continues to press downwards after the lower end face of the welding head main body presses the battery piece and the welding strip, the battery piece and the welding strip are flattened and compacted by the welding head main body, and then the welding head main body is heated and welded. The inventor finds that a traditional solar cell welding device can cause a welding head pressing plate to be blocked, and the problem that the cell is hidden to crack or directly crushed due to continuous pressing of the pressing plate is caused. Through research of the inventor, the traditional solar cell welding device requires that all pins and the pressing plate keep high verticality in the pressing process, otherwise, the pins are clamped in the guide holes. This is because the welding head main body needs to be heated and welded, and after long-time use, the pin can be heated and thermally expanded, and is easily stuck in the guide hole, thereby causing the pin to be stuck. And the pin blocks the back of blocking, needs manual getting rid of, and waste time, inefficiency, and arouses easily when manual getting rid of to scald, has the potential safety hazard. In order to solve the problem, the inventor proposes the technical scheme of the utility model.
As shown in fig. 1, the welding head for welding solar cells provided by the present invention generally includes a welding head main body 1 and a pressing plate 2. The welding head main body 1 is internally provided with a heating device (not shown in the figure) for heating the welding head main body 1 to a predetermined temperature so as to weld the battery piece and the welding strip (welding materials for welding are coated between the battery piece and the welding strip, and the welding materials can be solidified at a high temperature). The pressing plate 2 is arranged on the solar cell welding device and driven by the welding mechanism to descend/ascend. The bonding head main body 1 and the pressure plate 2 are elastically deformed and connected by a leaf spring 3. When the pressure plate 2 is lowered/raised by the leaf spring 3, the distance between the bonding head body 1 and the pressure plate 2 is changed by the leaf spring 3. Namely, the leaf spring 3 is elastically deformed and connected, so that when the pressing plate 2 descends and abuts against the battery leaf 4, the pressing plate 2 continues to descend, the distance between the welding head main body 1 and the pressing plate 2 is reduced, and the battery leaf 4 and the welding strip 5 are flattened and compacted by the lower end face of the welding head main body 1 and then are heated and welded; after the welding is finished, the pressure plate 2 rises, the lower end face of the welding head main body 1 is separated from the battery plate 4 and the welding strip 5, the pressure plate 2 continues to rise, and the distance between the welding head main body 1 and the pressure plate 2 is restored to a pressing state under the elastic recovery action of the leaf spring 3. As shown in fig. 3, which is a schematic view of the mounting (welding) positions of the battery plate 4 and the welding strip 5.
The utility model provides a pair of be used for solar wafer welded soldered connection passes through 3 elastic deformation of leaf spring with soldered connection main part 1 and clamp plate 2 and connects. The sheet spring 3 is adopted to replace a mode that a guide hole, a pin and a spring sleeved on the pin are adopted to buffer between a pressing assembly and a welding head main body in a traditional welding head, the pin is easy to be subjected to thermal expansion deformation, the pin is clamped in the guide hole, and the pressing plate presses down to bring hidden cracks or direct crushing potential safety hazards to the battery piece.
Specifically, the leaf spring 3 may be a metal elastic sheet or the like. The leaf spring 3 may be a straight leaf spring or a bent leaf spring. The cross section of the flat spring 3 may be rectangular, trapezoidal, triangular, or the like. All be provided with a leaf spring 3 in the both sides of clamp plate 2 to make soldered connection main part 1 push down stably, avoid soldered connection main part 1's lower terminal surface and battery piece 4 and weld between 5 pressure even, avoid the battery piece by the fracturing. As shown in fig. 1, the flat spring 3 is a straight flat spring, and the cross section of the straight flat spring is rectangular, and the two straight flat springs are connected into a U shape through a connecting plate. The end part of the straight leaf spring is fixedly connected with the welding head main body 1 and the pressing plate 2 respectively by fasteners. The fasteners may be bolts, screws, rivets, etc. Optionally, the connection mode of the end of the straight leaf spring and the welding head main body 1 and the pressure plate 2 is preferably detachable, so as to facilitate the later maintenance detection. As shown in fig. 4, the leaf spring 3 is a bent leaf spring, and its cross section is U-shaped, and two sides (two ends) of the bent leaf spring are connected with the welding head main body 1 and the pressure plate 2 through fasteners respectively.
It should be understood that the utility model discloses in the leaf spring 3 who adopts, it aims at replacing pin and spring, avoids the pin to be heated the deformation card and dies, consequently and need not restrict leaf spring 3's concrete structure and form, as long as can realize through 3 elastic connection soldered connection main part 1 of leaf spring and clamp plate 2, realize that soldered connection main part 1 and clamp plate 2's interval can change under clamp plate 2's effect.
In a specific embodiment, as shown in fig. 1, the leaf spring 3 includes a first elastic sheet 31, a second elastic sheet 32 and a connecting plate 33. The first end of the connecting plate 33 is connected with the pressure plate 2 through the first elastic sheet 31, and the second end of the connecting plate 33 is connected with the welding head main body 1 through the second elastic sheet 32. The first elastic sheet 31 is connected with the pressure plate 2 through a fastener (rivet and screw), and the second elastic sheet 32 is connected with the welding head main body 1 through a fastener (rivet and screw), so that the elastic deformation connection of the welding head main body 1 and the pressure plate 2 is realized. The first elastic sheet 31 and the second elastic sheet 32 are both straight elastic metal sheets. Optionally, hollow holes are formed in both the first elastic sheet 31 and the second elastic sheet 32, so as to reduce the weight and adjust the elastic force of the first elastic sheet 31 and the second elastic sheet 32.
In another embodiment, as shown in fig. 4, the flat spring 3 is two bent flat springs with U-shaped cross section, and the cross section may be an arc shape or the like. Two sides of the leaf spring 3 are respectively connected with the welding head main body 1 and the pressing plate 2, so that the elastic deformation connection of the welding head main body 1 and the pressing plate 2 is realized.
In another specific embodiment, the leaf spring 3 is a metal elastic member having a hollow rectangular cross section. The middle part of the upper end of the flat spring 3 is connected with the pressing plate 2, and the middle part of the lower end of the flat spring 3 is connected with the welding head main body 1, so that the elastic deformation connection of the welding head main body 1 and the pressing plate 2 is realized.
The utility model also provides a solar wafer welding set, it is including being used for welding the welding mechanism of taking welding to the main grid line of battery piece. The welding mechanism adopts the welding head. Specifically, the solar cell welding device comprises a placing mechanism, a conveying mechanism and a welding mechanism. The placing mechanism is used for placing the welding strip 5 on the main grid line 6 of the battery piece 4, and the placing mechanism can comprise a feeding device, a mechanical arm, a rotating device, a welding strip sucking disc, a battery string carrying mechanism and the like. The conveying mechanism is used for conveying the battery pieces 4 and the welding strips 5 to the welding mechanism, and the conveying mechanism can comprise a welding strip moving platform, a battery string moving platform and the like; the welding mechanism welds the welding strip 5 to the main grid line 6 of the battery piece 4. The main grid lines 6 can be sprayed with solder. The welding material is conductive adhesive which can be solidified at high temperature. The welding mechanism comprises a welding machine platform and the welding head. The bonding head includes a bonding head body 1 and a pressure plate 2. The pressing plate 2 is arranged on the welding machine table. The bonding head main body 1 and the pressure plate 2 are elastically deformed and connected by a leaf spring 3. The connection is elastically deformed by the leaf spring 3 so that when the pressing plate 2 descends/ascends and the bonding head main body 1 collides/moves away from the battery cell 4 and the bonding ribbon 5, the distance between the bonding head main body 1 and the pressing plate 2 is changed by the leaf spring 3. Reference is made to the preceding description for the structure of the welding head.
In an alternative embodiment, the flat spring 3 used in the welding mechanism includes a first elastic sheet 31, a second elastic sheet 32 and a connecting plate 33. The first end of the connecting plate 33 is connected with the pressure plate 2 through the first elastic sheet 31, and the second end of the connecting plate 33 is connected with the welding head main body 1 through the second elastic sheet 32. The first elastic sheet 31 is connected with the pressure plate 2 through a fastener (rivet and screw), and the second elastic sheet 32 is connected with the welding head main body 1 through a fastener (rivet and screw), so that the elastic deformation connection of the welding head main body 1 and the pressure plate 2 is realized. The first elastic sheet 31 and the second elastic sheet 32 are both straight elastic metal sheets. Optionally, hollow holes are formed in both the first elastic sheet 31 and the second elastic sheet 32, so as to reduce the weight and adjust the elastic force of the first elastic sheet 31 and the second elastic sheet 32.
The utility model provides a pair of solar wafer welding set, its soldered connection long service life, difficult breaking down can avoid compressing tightly the subassembly card dead, improves production efficiency, reduces the fragment rate of battery piece, eliminates the potential safety hazard.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The welding head for welding the solar cell is characterized by comprising a welding head main body and a pressing plate, wherein the welding head main body is connected with the pressing plate through elastic deformation of a leaf spring, so that when the pressing plate descends/ascends, the distance between the welding head main body and the pressing plate is changed under the action of the leaf spring.
2. The welding head according to claim 1, characterized in that said leaf spring is a straight leaf spring or a bent leaf spring.
3. The welding head according to claim 1, characterized in that the cross section of the leaf spring is rectangular, trapezoidal or triangular.
4. The welding head according to any one of claims 1 to 3, wherein one side of the leaf spring is connected to the pressure plate by a fastener and the other side of the leaf spring is connected to the welding head body by a fastener.
5. The welding head according to claim 1, wherein the leaf spring comprises a first spring piece, a second spring piece and a connecting plate, a first end of the connecting plate is connected with the pressure plate through the first spring piece, and a second end of the connecting plate is connected with the welding head main body through the second spring piece.
6. The welding head according to claim 5, wherein the first spring plate and the second spring plate are provided with hollowed holes.
7. The welding head according to claim 5 or 6, wherein the first resilient tab is connected to the pressure plate by a fastener, and the second resilient tab is connected to the welding head body by a fastener.
8. The welding head according to claim 1, characterized in that said leaf spring is a metal elastic leaf.
9. A solar cell welding device, which is characterized by comprising a welding mechanism for welding a welding strip to a main grid line of a cell, wherein the welding mechanism adopts the welding head of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021724385.3U CN213437902U (en) | 2020-08-18 | 2020-08-18 | Solar cell welding device and welding head thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021724385.3U CN213437902U (en) | 2020-08-18 | 2020-08-18 | Solar cell welding device and welding head thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213437902U true CN213437902U (en) | 2021-06-15 |
Family
ID=76314172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021724385.3U Active CN213437902U (en) | 2020-08-18 | 2020-08-18 | Solar cell welding device and welding head thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213437902U (en) |
-
2020
- 2020-08-18 CN CN202021724385.3U patent/CN213437902U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213437902U (en) | Solar cell welding device and welding head thereof | |
| CN206140011U (en) | Net mechanism is pressed in welding | |
| CN113001188A (en) | Efficient tank shell plate shearing and punching integrated equipment with waste recycling function and using method thereof | |
| CN215627639U (en) | Glass fiber processing is with categorised pressing device | |
| CN208787351U (en) | A kind of diel | |
| CN201380230Y (en) | Special device of solar battery welding strip | |
| CN205149270U (en) | Book -binding machine is used has thimble protection mechanism's lower riveting set | |
| CN211758257U (en) | A segmentation needle cutting mechanism for staple packing processing | |
| CN213134715U (en) | LED lamp holder shell fragment stamping die | |
| CN202462519U (en) | Die assembly for continuous blanking machine of rubber wafer | |
| CN214814447U (en) | SMD triode rib cutting forming device convenient to it is fixed | |
| CN219657404U (en) | Friable material breakage degree testing arrangement | |
| CN206779267U (en) | Permanent seal cooling diel | |
| CN212070711U (en) | Tin-adding-soldering demolding mechanism of junction box welding machine | |
| CN215508485U (en) | Cut-off type press with waste recycling function | |
| CN216624306U (en) | Battery string opening mechanism and battery string film inserting device | |
| CN220797022U (en) | Shaping tool for pole lugs of polymer soft-package battery | |
| CN210703308U (en) | Automatic change fixing device for welding | |
| CN209773757U (en) | Pressure head frock that square electricity core module laser welding was used | |
| CN213870614U (en) | Automatic screen pasting machine pressing mechanism | |
| CN215965863U (en) | Arc panel beating work piece stamping forming mould | |
| CN215392256U (en) | Steel wire rope riveting die | |
| CN216126417U (en) | Galvanized pipe end hole stamping device | |
| CN219924280U (en) | Processing device for L-shaped reinforced sheet metal parts | |
| CN215431804U (en) | Pressing plate mechanism for prewelding tab cutting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |