Dewatering and drying device for annealed photovoltaic welding strip

Abstract

The utility model relates to the technical field of photovoltaic solder strip production, and discloses a photovoltaic solder strip post-annealing dewatering and drying device which comprises a rack, and a wiping mechanism, a blow-drying mechanism and a drying mechanism are sequentially arranged on the rack from bottom to top. The wiping mechanism comprises a base fixed on the rack, a pair of symmetrically arranged clamping seats is arranged in the base, and sponge blocks are fixed on the clamping seats; the blow-drying mechanism comprises a base block fixed to the middle of the base, an air inlet with an opening in the front side is formed in the middle of the base block, and a high-pressure air pipe is fixed to the air inlet. An upper rectangular hole and a lower rectangular hole which are arranged up and down and are communicated with the air inlet are formed in the base block; the drying mechanism comprises an intermediate frequency coil erected on the base. The solder strip can be dewatered and dried step by step through the wiping mechanism, the blow-drying mechanism and the drying mechanism, the dewatering and drying effect of the solder strip can be effectively improved, secondary pollution of the solder strip can be avoided, and therefore the quality of the solder strip is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic ribbon production, and particularly relates to a water removal and drying device for photovoltaic ribbons after annealing. Background Art

[0002] The ribbon is an important raw material in the welding process of photovoltaic modules. The quality of the ribbon will directly affect the current collection efficiency of the photovoltaic module and has a great impact on the power of the photovoltaic module. In the production process of the ribbon, the annealing process is a heat treatment process that heats the copper strip to a certain temperature according to the process requirements, keeps it warm for a period of time, and then cools it at an appropriate speed to change the organizational structure and performance of the copper strip; the purpose is to soften the copper strip, improve plasticity and toughness, make its chemical composition uniform, remove internal residual stress, reduce the yield of the ribbon, improve the welding tensile force, and extend the service life of the ribbon. However, after annealing, the copper strip needs to be dried. The existing drying methods, such as a copper strip online annealing device for photovoltaic ribbons disclosed in the patent with the application number 201520099965.0, the

[0031] section of this patent discloses a water removal method: "The copper strip coming out of the cooling water tank 18 passes through the water remover 13 and the water remover 12 in sequence to remove the water brought out from the water tank. There are fine holes in the middle of the water remover for the copper strip to pass through, and an air pump connector is provided on the side of the water remover for connecting an air pump." Although this water removal method can blow most of the water clean, there is still a small part of water accumulating on the surface of the ribbon. The remaining water on the ribbon is removed by natural evaporation during the subsequent transportation, but the remaining water and dust in the air on the ribbon are likely to accumulate on the surface of the ribbon, and the ribbon is secondarily polluted. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a water removal and drying device for photovoltaic ribbons after annealing. Through the wiping mechanism, the air blowing mechanism, and the drying mechanism, the ribbon can be dehydrated and dried step by step, the water removal and drying effect of the ribbon can be effectively improved, secondary pollution of the ribbon can be avoided, and thus the quality of the ribbon can be improved.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A water removal and drying device for photovoltaic ribbons after annealing includes a frame. A water tank is provided at the bottom of the frame. An annealing wheel is provided in the water tank. A guide wheel is provided above the water tank. The photovoltaic ribbon bypasses the annealing wheel and the guide wheel in sequence. A wiping mechanism, an air blowing mechanism, and a drying mechanism are sequentially arranged from bottom to top in the area between the water tank and the guide wheel;

[0006] The wiping mechanism includes a base fixed on the frame. A pair of symmetrically arranged clamping seats are provided in the base. A sponge block is fixed on the clamping seat. The photovoltaic ribbon passes through between the two sponge blocks on both sides;

[0007] The drying mechanism includes a base block fixed in the middle of the base. An air inlet with an open front side is formed in the middle of the base block, and a high-pressure air pipe is fixed to the air inlet. Upper and lower rectangular holes communicating with the air inlet are formed in the base block.

[0008] The drying mechanism includes an intermediate-frequency coil erected on the base. The photovoltaic solder ribbon passing through the sponge block sequentially passes through the lower rectangular hole, the air inlet, the upper rectangular hole, and the intermediate-frequency coil from bottom to top.

[0009] Through the above technical solution, the annealed photovoltaic solder ribbon passes out from above the water tank. Then, most of the water attached to the photovoltaic solder ribbon can be wiped dry by the two sponge blocks. Then, the photovoltaic solder ribbon continues to move upward through the lower rectangular hole and the upper rectangular hole. The high-pressure air pipe blows high-pressure gas into the air inlet, so as to dry the photovoltaic solder ribbon in the base block, and the remaining water on the photovoltaic solder ribbon is further evaporated. Then, the photovoltaic solder ribbon continues to move upward through the intermediate-frequency coil, and the intermediate-frequency coil can heat the photovoltaic solder ribbon, so as to evaporate all the remaining moisture on the photovoltaic solder ribbon.

[0010] The present utility model is further arranged as follows: Two parallel guide rods and an adjusting screw are fixed to the clamping seat. The guide rods are inserted into one side plate of the base, and the extending end of the adjusting screw passing through the side plate is screwed with an adjusting nut. A compression spring is sleeved on the guide rod, and the compression spring is clamped between the side plate and the clamping seat.

[0011] Through the above technical solution, rotating the adjusting nut can drive the adjusting screw to move outward or inward. The adjusting screw drives the clamping seat to move, and the clamping seat drives the sponge block to move, so as to adjust the distance between the sponge block and the photovoltaic solder ribbon.

[0012] The present utility model is further arranged as follows: A plurality of uniformly distributed grooves are formed on one side of the sponge block facing the photovoltaic solder ribbon.

[0013] Through the above technical solution, the setting of the grooves can improve the water removal effect of the sponge block on the photovoltaic solder ribbon.

[0014] The present utility model is further arranged as follows: A rectangular sunk groove is formed on one side of the sponge block away from the photovoltaic solder ribbon.

[0015] A water outlet inclined downward is formed on the clamping seat, and the upper end of the water outlet is connected to the rectangular sunk groove.

[0016] Through the above technical solution, the excess water on the sponge block can enter the rectangular sunk groove through the extrusion of the sponge block, and then the water is discharged from the water outlet.

[0017] The present utility model is further arranged as follows: A plurality of scale lines are formed at the outer end of the guide rod.

[0018] Through the above technical solution, the moving distance of the guide rod can be clearly seen, so as to control the moving distance of the clamping seat.

[0019] The utility model is further arranged as follows: the contour of the lower rectangular hole is larger than that of the upper rectangular hole, and the upper rectangular hole is arranged in clearance fit with the photovoltaic solder strip;

[0020] Both ends of the upper rectangular hole are formed with rounded corners.

[0021] Through the above technical solution, since the gap between the lower rectangular hole and the photovoltaic solder strip is large, the high-pressure gas enters from the air inlet and then discharges downward from the lower rectangular hole, which can improve the water removal effect and prevent the rectangular solder strip from carrying water upward.

[0022] The prominent effect of the utility model is:

[0023] Compared with the prior art, through the wiping mechanism, the air drying mechanism and the drying mechanism, the solder strip can be dehydrated and dried step by step, the water removal and drying effect of the solder strip can be effectively improved, the secondary pollution of the solder strip can be avoided, and thus the quality of the solder strip can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view of the utility model;

[0025] Figure 2 is Figure 1 the partial enlarged view of A;

[0026] Figure 3 is Figure 2 the sectional view taken along B-B;

[0027] Figure 4 is Figure 3 the sectional view taken along C-C;

[0028] Figure 5 is Figure 2 the partial enlarged view of D.

[0029] Reference numerals: 10, frame; 11, water tank; 12, annealing wheel; 13, guide wheel; 14, photovoltaic solder strip;

[0030] 20, wiping mechanism; 201, base; 202, clamping seat; 203, sponge block; 204, guide rod; 205, adjusting screw; 206, adjusting nut; 207, compression spring;

[0031] 2031, groove; 2032, rectangular sunk groove; 2041, scale line; +

[0032] 30, air drying mechanism; 301, base block; 302, air inlet; 303, high-pressure air pipe; 304, upper rectangular hole; 305, lower rectangular hole;

[0033] 40. Drying mechanism; 401. Intermediate frequency coil. Specific embodiments

[0034] The following combines the accompanying drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0035] The following is a reference Figures 1 to 5 to illustrate the present utility model:

[0036] A device for removing water and drying photovoltaic solder tapes after annealing includes a frame 10. A water tank 11 is provided at the bottom of the frame 10. An annealing wheel 12 is provided in the water tank 11. A guide wheel 13 is provided above the water tank 11. The photovoltaic solder tape 14 sequentially bypasses the annealing wheel 12 and the guide wheel 13. In the area between the water tank 11 and the guide wheel 13, a wiping mechanism 20, a blowing-drying mechanism 30, and a drying mechanism 40 are sequentially provided from bottom to top;

[0037] The wiping mechanism 20 includes a base 201 fixed to the frame 10. A pair of symmetrically arranged clamping seats 202 are provided in the base 201. A sponge block 203 is fixed on the clamping seat 202. The photovoltaic solder tape 14 passes through between the two sponge blocks 203;

[0038] The blowing-drying mechanism 30 includes a base block 301 fixed to the middle of the base 201. An air inlet 302 with an open front side is formed in the middle of the base block 301. A high-pressure air pipe 303 is fixed to the air inlet 302. Upper and lower rectangular holes 304 and 305 communicating with the air inlet 302 are formed in the base block 301;

[0039] The drying mechanism 40 includes an intermediate frequency coil 401 mounted on the base 201. The photovoltaic solder tape 14 passing through the sponge block 203 sequentially passes through the lower rectangular hole 305, the air inlet 302, the upper rectangular hole 304, and the intermediate frequency coil 401 from bottom to top.

[0040] The annealed photovoltaic solder tape passes out from above the water tank, and then most of the water attached to the photovoltaic solder tape can be wiped dry by passing through two sponge blocks. Then the photovoltaic solder tape continues to move upward through the lower rectangular hole 305 and the upper rectangular hole. The high-pressure air pipe blows high-pressure gas into the air inlet, thereby blowing dry the photovoltaic solder tape in the base block. The remaining water on the photovoltaic solder tape is further evaporated; then the photovoltaic solder tape continues to move upward through the intermediate frequency coil, and the intermediate frequency coil can heat the photovoltaic solder tape, thereby evaporating all the remaining water on the photovoltaic solder tape.

[0041] The clamping seat 202 is fixed with two parallel guide rods 204 and an adjusting screw 205. The guide rod 204 is inserted into a side plate 2011 of the base 201, and the protruding end of the adjusting screw 205 passing through the side plate 2011 is screwed with an adjusting nut 206. A compression spring 207 is sleeved on the guide rod 204, and the compression spring 207 is clamped between the side plate 2011 and the clamping seat 202.

[0042] Rotating the adjusting nut can drive the adjusting screw to move outwards or inwards. The adjusting screw drives the clamping seat to move, and the clamping seat drives the sponge block to move, so that the distance between the sponge block and the photovoltaic solder strip can be adjusted.

[0043] On one side of the sponge block 203 facing the photovoltaic solder strip 14, a plurality of uniformly distributed grooves 2031 are formed.

[0044] Setting the grooves can improve the water removal effect of the sponge block on the photovoltaic solder strip.

[0045] On the side of the sponge block 203 away from the photovoltaic solder strip 14, a rectangular sink 2032 is formed;

[0046] On the clamping seat 202, a downwardly inclined water outlet 20211 is formed, and the upper end of the water outlet 2021 is connected to the rectangular sink 2032.

[0047] The excess water on the sponge block can enter the rectangular sink after being squeezed by the sponge block, and then the water is discharged from the water outlet.

[0048] On the outer end of the guide rod 204, a number of scale lines 2041 are formed.

[0049] The moving distance of the guide rod can be clearly seen, so as to control the moving distance of the clamping seat.

[0050] The contour of the lower rectangular hole 305 is larger than that of the upper rectangular hole 304, and the upper rectangular hole 304 is arranged in clearance fit with the photovoltaic solder strip 14;

[0051] At both ends of the upper rectangular hole 304, rounded corners are formed.

[0052] Since the gap between the lower rectangular hole and the photovoltaic solder strip is large, the high-pressure gas enters from the air inlet and then discharges downward from the lower rectangular hole, which can improve the water removal effect and prevent the rectangular solder strip from carrying water upwards.

[0053] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made. These improvements and modifications made above should also be regarded as the protection scope of the present invention.

Claims

1. A photovoltaic welding ribbon post-annealing dehydration and drying device, comprising a frame (10), a water tank (11) is provided at the bottom of the frame (10), an annealing wheel (12) is provided in the water tank (11), a guide wheel (13) is provided above the water tank (11), and the photovoltaic welding ribbon (14) passes around the annealing wheel (12) and the guide wheel (13) in sequence, characterized in that: The area between the water tank (11) and the guide wheel (13) is provided with a wiping mechanism (20), a drying mechanism (30) and a drying mechanism (40) in order from bottom to top; The wiping mechanism (20) comprises a base (201) fixed on the frame (10), a pair of symmetrically arranged clamping seats (202) are provided in the base (201), and sponge blocks (203) are fixed on the clamping seats (202); the photovoltaic welding strip (14) passes between the sponge blocks (203) on both sides; The drying mechanism (30) comprises a base block (301) fixed to the middle of the base (201); an air inlet (302) with a front opening is formed in the middle of the base block (301); a high-pressure air pipe (303) is fixed to the air inlet (302); an upper rectangular hole (304) and a lower rectangular hole (305) are formed on the base block (301) and are arranged up and down and communicate with the air inlet (302); The drying mechanism (40) comprises a medium frequency coil (401) mounted on a base (201); the photovoltaic welding strip (14) passing through the sponge block (203) passes through the lower rectangular hole (305), the air inlet (302), the upper rectangular hole (304) and the medium frequency coil (401) in sequence from bottom to top.

2. A photovoltaic welding strip post-annealing dehydration and drying device according to claim 1, characterized in that: The clamping seat (202) is fixed with two parallel guide rods (204) and an adjusting screw (205); the guide rod (204) is inserted into a side plate (2011) of the base (201); the adjusting screw (205) passes through the protruding end of the side plate (2011) and is screwed with an adjusting nut (206); a compression spring (207) is sleeved on the guide rod (204), and the compression spring (207) is clamped between the side plate (2011) and the clamping seat (202).

3. The photovoltaic ribbon dewatering and drying device after annealing according to claim 1, characterized in that: A plurality of evenly distributed grooves (2031) are formed on one side of the sponge block (203) facing the photovoltaic welding strip (14).

4. The photovoltaic ribbon dewatering and drying device after annealing according to claim 1, characterized in that: A rectangular sink groove (2032) is formed on a side of the sponge block (203) away from the photovoltaic welding strip (14); The clamping seat (202) is formed with a water drop outlet (2021) arranged obliquely downward, and the upper end of the water drop outlet (2021) is connected to the rectangular sink (2032).

5. The photovoltaic ribbon dewatering and drying device after annealing according to claim 2, characterized in that: A plurality of scale lines (2041) are formed on the outer end of the guide rod (204).

6. The photovoltaic ribbon dewatering and drying device after annealing according to claim 1, characterized in that: The outline of the lower rectangular hole (305) is larger than the outline of the upper rectangular hole (304), and the upper rectangular hole (304) and the photovoltaic welding strip (14) are arranged with clearance fit; Both ends of the upper rectangular hole (304) are formed with rounded corners.

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