CN221334939U - Scaling powder spraying box and scaling powder spraying equipment with same - Google Patents
Scaling powder spraying box and scaling powder spraying equipment with same Download PDFInfo
- Publication number
- CN221334939U CN221334939U CN202322672410.8U CN202322672410U CN221334939U CN 221334939 U CN221334939 U CN 221334939U CN 202322672410 U CN202322672410 U CN 202322672410U CN 221334939 U CN221334939 U CN 221334939U
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- spraying
- flux
- cavity
- soldering flux
- spraying cavity
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- 238000005507 spraying Methods 0.000 title claims abstract description 117
- 239000000843 powder Substances 0.000 title description 13
- 230000004907 flux Effects 0.000 claims abstract description 118
- 238000005476 soldering Methods 0.000 claims abstract description 68
- 239000007921 spray Substances 0.000 claims abstract description 54
- 238000003466 welding Methods 0.000 claims abstract description 43
- 229910000679 solder Inorganic materials 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005219 brazing Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Flux spraying case and have its flux spraying equipment, flux spraying case includes: the box body is provided with a spraying cavity, a welding strip inlet communicated with the spraying cavity and a welding strip outlet communicated with the spraying cavity; the spraying assembly comprises a plurality of spray heads positioned at the top of the spraying cavity; and the heating component is positioned on the wall surrounding the spraying cavity or positioned in the spraying cavity and used for heating the spraying cavity. The heating component of the utility model does not directly heat the soldering flux, but heats the spraying cavity; on one hand, the flux can be kept to be composed of a formula when the flux is supplied, so that flux residue caused by the too high concentration of the flux is avoided; on the other hand, the spraying cavity is heated to provide the environment temperature required by the reaction of the soldering flux and the oxide layer on the surface of the solder strip, so that the soldering flux can be ensured to corrode the oxide layer on the surface of the solder strip, the cold joint is improved, and the spraying cavity is particularly suitable for spraying the soldering flux of TOPCon battery chips.
Description
Technical Field
The utility model relates to the field of photovoltaics, in particular to a scaling powder spraying box and scaling powder spraying equipment with the same.
Background
The photovoltaic solder strip is also called tinned copper strip, is a passband used for series welding of battery pieces in a photovoltaic module, and mainly serves as a collection current. Because the surface of the brazing strip is extremely easy to form an oxide layer, the brazing strip is required to pass through a scaling powder coating mechanism before being welded, so that the oxide layer is removed and the welding of the brazing strip and the grid line of the battery piece is assisted.
The main flux attachment modes at present are as follows: the solder strip is drawn from a bath containing a flux solution therethrough. Because TOPCon battery pieces are easy to corrode, certain requirements are made on the components and the content of the soldering flux, and a common welding machine such as a calf 5000T is usually used for equally producing the soldering flux while a welding strip is soaked, so that the concentration of the components of the soldering flux can not be ensured to meet the reliability standard while the welding quality is ensured, and therefore, the coating mode of the soldering flux which meets TOPCon battery pieces needs to be explored.
In view of the foregoing, there is a need for an improved flux spraying apparatus that solves the above-described problems.
Disclosure of utility model
The utility model aims to at least solve one of the technical problems in the prior art, and provides a soldering flux spraying device which can ensure the formulation of soldering flux.
In order to achieve one of the above purposes, the present utility model adopts the following technical scheme:
A flux spray booth comprising:
the box body is provided with a spraying cavity, a welding strip inlet communicated with the spraying cavity and a welding strip outlet communicated with the spraying cavity;
The spraying assembly comprises a plurality of spray heads positioned at the top of the spraying cavity;
and the heating component is positioned on the wall surrounding the spraying cavity or positioned in the spraying cavity and used for heating the spraying cavity.
Further, the welding strip inlets and the welding strip outlets are in one-to-one correspondence and are respectively arranged on two opposite sides of the spraying cavity, and the spray heads are distributed along the connecting lines of the corresponding welding strip inlets and the welding strip outlets.
Further, the spray assembly further comprises a connecting pipe connected with a plurality of spray heads, and the spray heads comprise atomizing nozzles.
Further, the flux spray tank also has a wiping structure at the solder strip outlet.
Further, the heating assembly is located on a bottom wall and/or a side wall that encloses the spray cavity.
Further, the bottom wall is provided with a boss protruding into the spraying cavity, and the heating component is arranged on the boss.
Further, a plurality of liquid dropping holes are formed in the bottom wall of the spraying cavity.
Further, the soldering flux spraying box further comprises a drainage tube connected with the plurality of liquid dropping holes;
Or, the soldering flux spraying box further comprises a liquid collecting cavity positioned below the bottom wall and a drainage port for opening or closing the liquid collecting cavity;
Or, the soldering flux spraying box further comprises a liquid collecting cavity positioned below the bottom wall and a drainage tube communicated with the liquid collecting cavity.
Further, the bottom wall is provided with a boss protruding into the spraying cavity, the heating component is arranged on the boss, and the liquid dropping hole is located in an area outside the boss.
A scaling powder spraying device comprises a scaling powder storage box, a scaling powder spraying box, a conveying unit for conveying scaling powder in the scaling powder storage box to the spraying assembly, and a driving mechanism for driving a welding belt to pass through the scaling powder spraying box.
The beneficial effects of the utility model are as follows: the heating component of the utility model does not directly heat the soldering flux, but heats the spraying cavity; on one hand, the flux can be kept to be composed of a formula when the flux is supplied, so that flux residue caused by the too high concentration of the flux is avoided; on the other hand, the spraying cavity is heated, and the environment temperature required by the reaction of the soldering flux and the oxide layer on the surface of the solder strip is provided, so that the soldering flux can be ensured to corrode the oxide layer on the surface of the solder strip, the cold joint is improved, and the spraying cavity is particularly suitable for spraying the soldering flux of TOPCon battery chips; and is of course more suitable for flux spraying of other types of battery pieces.
Drawings
FIG. 1 is a schematic view of a flux spray booth in accordance with one embodiment of the present utility model;
FIG. 2 is a schematic view of the structure of FIG. 1 with a sidewall removed;
FIG. 3 is a schematic view of the structure of FIG. 2 with the top wall removed;
FIG. 4 is a cross-sectional view of FIG. 2;
fig. 5 is a schematic view of a flux spray booth in another embodiment.
The welding flux spraying box comprises a 100-soldering flux spraying box body, a 1-box body, a 11-spraying cavity, a 12-welding strip inlet, a 13-welding strip outlet, a 14-bottom wall, a 141-boss, a 142-dropping hole, a 15-side wall, a 16-top wall, a 17-liquid collecting cavity, a 2-spraying component, a 21-spray head, a 3-wiping structure and a 4-welding strip.
Detailed Description
The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.
In the various drawings of the present utility model, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for convenience of illustration and thus serve only to illustrate the basic structure of the subject matter of the present utility model.
Referring to fig. 1 to 5, a flux spraying box 100 according to a preferred embodiment of the present utility model includes a box body 1, a spraying assembly 2 for spraying flux, and a heating assembly (not shown) for heating the interior of the box body 1.
Referring to fig. 1 to 4, the box 1 is provided with a spraying chamber 11 for spraying, a welding strip inlet 12 communicated with the spraying chamber 11, and a welding strip outlet 13 communicated with the spraying chamber 11. The welding strip 4 to be sprayed with the soldering flux enters the spraying cavity 11 from the welding strip inlet 12, and after being sprayed with the soldering flux, the soldering strip enters a welding link with the battery piece through the welding strip outlet 13.
Typically, a plurality of solder strips 4 are fed together into the spray chamber 11 for flux spraying for efficiency. Wherein, a plurality of welding strips 4 can enter the spraying cavity 11 through one welding strip inlet 12 and pass out of the spraying cavity 11 through one welding strip outlet 13. Or each solder ribbon 4 individually passes through a set of said solder ribbon inlets 12, said solder ribbon outlets 13; namely, the welding strip inlets 12 and the welding strip outlets 13 are arranged in a one-to-one correspondence.
Preferably, the solder strip inlet 12 and the solder strip outlet 13 are respectively disposed at two opposite sides of the spraying cavity 11, so that the solder strip 4 passes through the spraying cavity 11 along a straight line, which is beneficial to the subsequent welding with the battery piece.
In addition, as shown in fig. 1 to 4, the case 1 may be provided with only one chamber of the spray chamber 11, and the case 1 includes a bottom wall 14, side walls 15, and a top wall 16 enclosing the spray chamber 11. Or, as shown in fig. 5, the box 1 may further include a spraying cavity 11, and a liquid collecting cavity 17 located below the spraying cavity 11, where the liquid collecting cavity 17 is used for collecting the excessive soldering flux; at this time, the bottom wall 14 surrounding the spray chamber 11 corresponds to a middle partition plate in the case 1, and the liquid collecting chamber 17 is located below the bottom wall 14.
As shown in fig. 3 to 5, the spray assembly 2 includes a plurality of spray heads 21 positioned at the top of the spray cavity 11 to spray the flux into the spray cavity 11, and the amount of flux can be controlled by the spray heads 21 to avoid excessive flux remaining on the solder strip 4.
Further, the spraying assembly 2 further includes a connection pipe (not shown) for connecting the plurality of spray heads 21, so that each spray head 21 is connected with the soldering flux storage box after being converged, and connection operation is facilitated.
In the utility model, the plurality of spray heads 21 are arranged along the connecting line of the corresponding welding strip inlet 12 and welding strip outlet 13, i.e. the plurality of spray heads 21 are positioned above the welding strip 4 in the spraying cavity 11 and are arranged along the extending direction of the welding strip 4, and the spray heads 21 spray soldering flux downwards, thereby being beneficial to uniformly coating the soldering strip 4 with the soldering flux. Specifically, as shown in fig. 3, the soldering flux spraying box 100 has 3 groups of the solder strip inlets 12 and the solder strip outlets 13, the spray heads 21 are arranged in 3 rows, and each row of the spray heads 21 is arranged along a line connecting one group of the solder strip inlets 12 and the solder strip outlets 13.
Further, the spray head 21 includes an atomizing nozzle, and sprays the flux in a mist or droplet form in the spray box, which is advantageous in that the flux is uniformly adhered to the solder strip 4 and the uniformity of coating is improved.
In addition, as shown in fig. 4 and 5, the soldering flux spray booth 100 further has a wiping structure 3 located at the soldering ribbon outlet 13, in particular, the wiping structure 3 is located within the spray cavity 11 and/or within the soldering ribbon outlet 13. When the solder strip 4 passes through the solder strip outlet 13, the wiping structure 3 wipes the solder strip 4, so that the soldering flux is uniformly attached to the solder strip 4, and the excessive soldering flux can be adsorbed and wiped off, so that the excessive soldering flux is prevented from remaining on the solder strip 4, and the reliability of the assembly is improved.
In this embodiment, the wiping structure 3 may be a sponge, cloth, or the like.
The heating component is in a structure of a heating wire, a heating plate and the like, is positioned on the wall surrounding the spraying cavity 11 or is positioned in the spraying cavity 11 and is used for heating the spraying cavity 11 and providing the temperature required by the reaction of the soldering flux and the oxide layer on the surface of the welding strip 4.
The heating assembly of the present utility model does not directly heat the flux, but heats the spray cavity 11, separating the flux from the heat. On one hand, the flux can be kept to be composed of a formula when the flux is supplied, so that flux residue caused by the too high concentration of the flux is avoided; on the other hand, the spraying cavity 11 is heated to provide the environment temperature required by the reaction of the soldering flux and the oxide layer on the surface of the solder strip 4, so that the soldering flux can be ensured to corrode the oxide layer on the surface of the solder strip 4, the cold joint is improved, and the spraying cavity is particularly suitable for spraying the soldering flux of TOPCon battery chips; and is of course more suitable for flux spraying of other types of battery pieces.
Specifically, the heating component is located on the bottom wall 14 and/or the side wall 15 surrounding the spraying cavity 11, and heats the spraying cavity 11 from one or more surfaces, so as to maintain the environmental temperature of the spraying cavity 11 between 30 ℃ and 60 ℃ and ensure the effective reaction of the soldering flux and the oxide layer on the surface of the solder strip 4.
Further, the bottom wall 14 is provided with a boss 141 protruding into the spray cavity 11, and the heating component is disposed on the boss 141.
In addition, the bottom wall 14 surrounding the spray cavity 11 is provided with a plurality of drip holes 142 for collecting and discharging the surplus flux.
In one embodiment, the soldering flux spraying box 100 further includes a drainage tube connected to the plurality of drip holes 142, so as to facilitate recycling of soldering flux.
In another embodiment, the soldering flux spraying box 100 further includes a liquid collecting cavity 17 below the bottom wall 14, and a drainage port for opening or closing the liquid collecting cavity 17, so that the soldering flux is collected and temporarily stored through the liquid collecting cavity 17, and after a certain amount or a certain interval, the soldering flux is discharged outwards through the drainage port. Or, the soldering flux spraying box 100 further comprises a liquid collecting cavity 17 positioned below the bottom wall 14 and a drainage tube communicated with the liquid collecting cavity 17; when a certain amount of flux is stored in the liquid collecting cavity 17, the flux is discharged outwards through the drainage tube.
Further, the bottom wall 14 is provided with a boss 141 protruding into the spraying cavity 11, the heating component is disposed on the boss 141, and the drip hole 142 is located in an area outside the boss 141. In one embodiment, the boss 141 is located in the middle of the bottom plate, and the drip holes 142 are uniformly distributed around the bottom wall 14.
The utility model also provides a soldering flux spraying device which comprises a soldering flux storage box, the soldering flux spraying box 100, a conveying unit for conveying soldering flux in the soldering flux storage box to the spraying assembly 2 and a driving mechanism for driving the welding strip 4 to pass through the soldering flux spraying box 100.
The driving mechanism drives the welding strip 4 to flow through the spraying cavity 11; the conveying unit comprises a conveying pipe and a conveying pump, and is used for supplying the soldering flux in the soldering flux storage box to the spraying assembly 2 and spraying the soldering flux into the spraying cavity 11 through spraying; and meanwhile, the heating assembly is started to heat the spraying cavity 11, so that the condition required by the reaction of the soldering flux and the oxide layer on the surface of the solder strip 4 is improved, the soldering flux can be ensured to corrode the oxide layer on the surface of the solder strip 4, and the cold joint is improved.
In summary, the heating assembly of the present utility model does not directly heat the flux, but heats the spray cavity 11, separating the flux from the heat. On one hand, the flux can be kept to be composed of a formula when the flux is supplied, so that flux residue caused by the too high concentration of the flux is avoided; on the other hand, the spraying cavity 11 is heated to provide the environment temperature required by the reaction of the soldering flux and the oxide layer on the surface of the solder strip 4, so that the soldering flux can be ensured to corrode the oxide layer on the surface of the solder strip 4, the cold joint is improved, and the spraying cavity is particularly suitable for spraying the soldering flux of TOPCon battery chips; and is of course more suitable for flux spraying of other types of battery pieces.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A flux spray booth comprising:
the box body is provided with a spraying cavity, a welding strip inlet communicated with the spraying cavity and a welding strip outlet communicated with the spraying cavity;
The spraying assembly comprises a plurality of spray heads positioned at the top of the spraying cavity;
The heating component is positioned on the wall surrounding the spraying cavity or in the spraying cavity and is used for heating the spraying cavity, and the heating component is a heating wire or a heating plate.
2. The flux spray booth as claimed in claim 1, wherein: the welding strip inlets and the welding strip outlets are in one-to-one correspondence and are respectively arranged on two opposite sides of the spraying cavity, and the spray heads are distributed along the connecting lines of the corresponding welding strip inlets and the welding strip outlets.
3. The flux spray booth as claimed in claim 1, wherein: the spraying assembly further comprises a connecting pipe connected with a plurality of spray heads, and the spray heads comprise atomizing nozzles.
4. The flux spray booth as claimed in claim 1, wherein: the flux spray tank also has a wiping structure located at the solder strip outlet.
5. The soldering flux spray booth as claimed in any one of claims 1 to 4, wherein: the heating assembly is located on a bottom wall and/or a side wall that encloses the spray cavity.
6. The flux spray booth as claimed in claim 5, wherein: the bottom wall is provided with a boss protruding into the spraying cavity, and the heating component is arranged on the boss.
7. The flux spray booth as claimed in claim 1, wherein: the bottom wall surrounding the spraying cavity is provided with a plurality of liquid dropping holes.
8. The flux spray booth as claimed in claim 7, wherein: the soldering flux spraying box further comprises a drainage tube connected with the plurality of liquid dropping holes;
Or, the soldering flux spraying box further comprises a liquid collecting cavity positioned below the bottom wall and a drainage port for opening or closing the liquid collecting cavity;
Or, the soldering flux spraying box further comprises a liquid collecting cavity positioned below the bottom wall and a drainage tube communicated with the liquid collecting cavity.
9. The flux spray booth as claimed in claim 7, wherein: the bottom wall is provided with a boss protruding into the spraying cavity, the heating component is arranged on the boss, and the liquid dropping hole is located in an area outside the boss.
10. A soldering flux spraying apparatus comprising a soldering flux reservoir tank, a soldering flux spraying tank as claimed in any one of claims 1 to 9, a conveying unit for conveying the soldering flux in the soldering flux reservoir tank to the spraying assembly, and a driving mechanism for driving a solder ribbon to pass through the soldering flux spraying tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322672410.8U CN221334939U (en) | 2023-10-07 | 2023-10-07 | Scaling powder spraying box and scaling powder spraying equipment with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322672410.8U CN221334939U (en) | 2023-10-07 | 2023-10-07 | Scaling powder spraying box and scaling powder spraying equipment with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221334939U true CN221334939U (en) | 2024-07-16 |
Family
ID=91844767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322672410.8U Active CN221334939U (en) | 2023-10-07 | 2023-10-07 | Scaling powder spraying box and scaling powder spraying equipment with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221334939U (en) |
-
2023
- 2023-10-07 CN CN202322672410.8U patent/CN221334939U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |