CN212199393U - Annular air knife for tinned photovoltaic solder strip - Google Patents
Annular air knife for tinned photovoltaic solder strip Download PDFInfo
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- CN212199393U CN212199393U CN202020911035.1U CN202020911035U CN212199393U CN 212199393 U CN212199393 U CN 212199393U CN 202020911035 U CN202020911035 U CN 202020911035U CN 212199393 U CN212199393 U CN 212199393U
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- convex part
- central convex
- casing
- tinned
- air knife
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Abstract
The utility model relates to a tin-plating photovoltaic solder strip ring shape air knife has last casing, lower casing and air-supply line, and the casing has central convex part down, has around central convex part and the compression chamber that feeds through the intake pipe down in the casing, and the top of central convex part has the cone portion, and central convex part has the inner chamber that is located casing bottom surface side open side down, and the cone portion tip has the through-hole of switch-on inner chamber, go up the casing have with the bell jar that the conical part external cone face matches, the bell jar top have with the coaxial air knife mouth of through-hole, form the gas collecting chamber between bell jar lower part and the central convex part, be equipped with the stationary flow piece that can step down the speed reduction to the air inlet between compression chamber. The utility model discloses a set up the steady flow piece in airflow flow channel, can make the air current be the dispersion form and flow, reduce air pressure and speed, ensure that the wind knife edge blows to the air current that welds the area and has better stability, and the tin surface that blows out has better degree of consistency and smoothness, improves product quality.
Description
Technical Field
The utility model belongs to the technical field of the air knife technique and specifically relates to a ring shape air knife that is used for carrying out tin coating even treatment to tin-plated photovoltaic solder strip surface.
Background
The tinned copper wire is made of tin as a coating material and copper as a base material, and the product is mainly used for conductive connection of a crystalline silicon solar cell module and is also suitable for wire connection of a printed computer board and other cell electronics. However, when welding connection is carried out, peculiar smell and smoke are often generated, which not only affects the health of welders, but also affects the welding effect, so that the tin coating on the surface of the copper wire connection part is scraped by a traditional die scraper. But the tin coating surface that the scraper was scraped out is inhomogeneous, and the smoothness is not good enough, and the easy scratch tinned wire moreover to influence the quality of product, consequently adopt the air knife to get rid of the tinned coating of junction now usually, and current air knife is because structural factor, the condition that the air-out is inhomogeneous, pressure is unstable often appears, leads to tinned wire surface inhomogeneous, and can appear graininess tin spot, causes to connect the back electric conductive property not good.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: in order to overcome the deficiency among the prior art, the utility model provides a can effectively improve the air current stability, ensure to weld the tin-plating photovoltaic solder strip ring shape air knife of taking connection conductivity.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a tinned photovoltaic solder strip ring shape air knife, has last casing and the lower casing that links firmly with last casing seal, and lower shell coupling has the air-supply line, lower casing central convex part has, the internal compression chamber that centers on central convex part and intercommunication intake pipe that has of inferior valve, the top of central convex part has the lateral inner chamber of casing bottom surface under lieing in and inwards shrink formation cone portion, central convex part has, and cone portion tip has the through-hole of switch-on inner chamber, go up the casing have with the bell jar that the conical surface matches outside the cone portion, the bell jar top have with the coaxial air knife mouth of through-hole, form the gas collecting chamber between bell jar lower part and the central convex part, compression chamber and gas collecting chamber between be equipped with and step down the stationary flow piece that slows down to the air inlet step-down.
Preferably, the flow stabilizing sheet has a grid structure.
Or small holes are densely distributed on the flow stabilizing sheet.
Furthermore, the two air inlet pipes are symmetrically connected to the two sides of the lower shell in the center of the lower shell.
In order to reduce the wind speed better, a flow stabilizing valve is arranged between the air inlet pipe and the compression cavity.
The utility model has the advantages that: the utility model relates to a rationally, simple structure through set up the steady flow piece in airflow flow channel to this reduces the wind pressure wind speed, thereby has guaranteed effectively when handling circular solder strip tin coating, and the air current that the air knife blew off has better stability, and the tin surface degree of consistency of blowing out is good, and the smoothness is good, and uneven and spot graininess of thickness can not appear in the tinned wire surface, ensures product quality.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the air inlet structure comprises an upper shell, 2 parts of a lower shell, 3 parts of an air inlet pipe, 4 parts of a central convex part, 5 parts of a compression cavity, 6 parts of a cone part, 7 parts of an inner cavity, 8 parts of a through hole, 9 parts of a cone groove, 10 parts of an air knife edge, 11 parts of a gas collecting cavity, 12 parts of a flow stabilizing sheet and 13 parts of a flow stabilizing valve.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in figure 1, the annular air knife for the tinned photovoltaic solder strip is provided with an upper shell 1 and a lower shell 2, wherein the upper shell 1 covers the lower shell 2 and is fixedly connected with the lower shell through a bolt seal, and two side walls of the lower shell 2, which are symmetrical to two sides of the center of the lower shell 2, are respectively connected with an air inlet pipe 3.
The lower shell 2 is provided with a central convex part 4, the central convex part 4 is provided with an inner cavity 7 which is opened towards the bottom side of the lower shell 2 and is used for placing a welding strip, a compression cavity 5 which surrounds the central convex part 4 and is communicated with the air inlet pipe 3 is arranged in the lower shell 2, a flow stabilizing valve 13 is arranged between the air inlet pipe 3 and the compression cavity 5, and the flow stabilizing valve 13 is a silencer to reduce the wind speed and eliminate the noise; the top of the central convex part 4 extends towards the upper shell 1 and shrinks inwards to form a conical part 6, and the end part of the conical part 6 is provided with a through hole 8 communicated with the inner cavity 7 for discharging welding strips in the inner cavity 7.
The upper shell 1 is provided with a conical groove 9 matched with the outer conical surface of the conical part 6, the top of the conical groove 9 is provided with an air knife opening 10 coaxial with the through hole 8, a gas collecting cavity 11 is formed between the lower part of the conical groove 9 and the central convex part 4, and a flow stabilizing sheet 12 capable of reducing pressure and speed of inlet air is arranged between the compression cavity 5 and the gas collecting cavity 11.
The surface of the flow stabilizing sheet 12 is of a grid structure, or small holes are densely distributed in the flow stabilizing sheet 12, so that airflow can flow dispersedly when flowing through fine grids or small holes, pressure and speed of the airflow can be effectively reduced, when a tin coating of a circular welding strip is treated, the airflow blown to the welding strip by the air knife edge 10 is ensured to have better stability, the blown tin surface has better uniformity and smoothness, uneven thickness and spot particles on the surface of a tin-plated copper wire are prevented, and product quality is improved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a tinned photovoltaic solder strip ring shape air knife, has last casing (1) and lower casing (2) that links firmly with last casing (1) is sealed, and lower casing (2) are connected with air-supply line (3), characterized by: the lower shell (2) is provided with a central convex part (4), a compression cavity (5) which surrounds the central convex part (4) and is communicated with the air inlet pipe (3) is arranged in the lower shell (2), the top of the central convex part (4) is provided with a cone part (6) which extends towards the upper shell (1) and is formed by inward contraction, the central convex part (4) is provided with an inner cavity (7) which is positioned at the opening of the bottom side of the lower shell (2), the end part of the cone part (6) is provided with a through hole (8) communicated with the inner cavity (7), the upper shell (1) is provided with a conical groove (9) matched with the outer conical surface of the cone part (6), the top of the conical groove (9) is provided with a wind knife edge (10) coaxial with the through hole (8), a gas collection cavity (11) is formed between the lower part of the conical groove (9) and the central convex part (4), and a steady flow sheet (12) which can reduce the pressure and speed of the inlet air is arranged between the compression cavity (5) and the gas collection cavity (11).
2. The tinned photovoltaic solder strip annular air knife of claim 1, which is characterized in that: the flow stabilizing sheet (12) has a grid-shaped structure.
3. The tinned photovoltaic solder strip annular air knife of claim 1, which is characterized in that: the flow stabilizing sheet (12) is densely provided with small holes.
4. The tinned photovoltaic solder strip annular air knife of claim 2 or 3, characterized in that: the two air inlet pipes (3) are symmetrically connected to the center of the lower shell (2) at two sides of the lower shell (2).
5. The tinned photovoltaic solder strip annular air knife of claim 4, which is characterized in that: and a flow stabilizing valve (13) is arranged between the air inlet pipe (3) and the compression cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020911035.1U CN212199393U (en) | 2020-05-26 | 2020-05-26 | Annular air knife for tinned photovoltaic solder strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020911035.1U CN212199393U (en) | 2020-05-26 | 2020-05-26 | Annular air knife for tinned photovoltaic solder strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212199393U true CN212199393U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020911035.1U Active CN212199393U (en) | 2020-05-26 | 2020-05-26 | Annular air knife for tinned photovoltaic solder strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212199393U (en) |
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2020
- 2020-05-26 CN CN202020911035.1U patent/CN212199393U/en active Active
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