A tin scraping stabilizing device for busbar

Abstract

The utility model discloses a kind of busbar tin scraping stabilizing devices, the busbar tin scraping stabilizing device includes: two symmetrical installations in the busbar movement path both sides of voltage stabilizing air knife, the cutter head of each voltage stabilizing air knife is respectively connected with one high-pressure gas pipe, the top end of two high-pressure gas pipes is connected and is connected with high-pressure gas source, high-pressure gas source and the position between two high-pressure gas pipe connection positions are equipped with air pressure regulating master valve, one air flow distribution valve is installed on each high-pressure gas pipe, one air pressure gauge is installed on the high-pressure gas pipe between each air flow distribution valve and the voltage stabilizing air knife. By the above mode, the utility model can enhance the uniformity of the thickness of tin layer on the surface of return flow belt, improve the overall quality of busbar.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cell modules, and in particular to a busbar solder scraping stabilization device. Background Technology

[0002] Busbars are an important component for connecting various solar photovoltaic cell modules in series. During the production process, busbars need to be tin-plated on their surface in a tin bath. After tin plating, an air knife mechanism scrapes off excess tin material from the surface before the tin layer is fully hardened, ensuring that the tin layer thickness on the busbar surface remains uniform and stable. Existing air knife mechanisms generally connect the air knife head and the high-pressure air source directly through a high-pressure air pipe. Thus, in actual production, the scraping effect of the air knife is directly related to the pressure stability of the high-pressure air source. Pressure fluctuations in the high-pressure air source can easily lead to unstable air output from the air knife, which in turn causes fluctuations in the thickness of the tin layer on the busbar surface. Utility Model Content

[0003] The main technical problem solved by this invention is to provide a busbar tin scraping stabilization device that can improve the stability of the tin layer thickness of the return strip.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a manifold solder scraping stabilizing device, the manifold solder scraping stabilizing device comprising: two pressure-stabilizing air knives symmetrically installed on both sides of the manifold movement path, each pressure-stabilizing air knife having a high-pressure air pipe connected to its blade head, the top ends of the two high-pressure air pipes being connected to a high-pressure air source, a pressure regulating main valve being installed between the high-pressure air source and the connection point of the two high-pressure air pipes, an airflow distribution valve being installed on each high-pressure air pipe, and a pressure gauge being installed on the high-pressure air pipe between each airflow distribution valve and the pressure-stabilizing air knife.

[0005] In a preferred embodiment of this utility model, the pressure-stabilizing air knife includes a duckbill blade head, a blade rod, and a positioning connecting plate; the positioning connecting plate is installed on the top of the blade rod, and the blade rod is vertically fixed to the inner surface of the duckbill blade head through the positioning connecting plate; the duckbill blade head includes a first duckbill assembly and a second duckbill assembly that are spliced ​​together, the first duckbill assembly and the second duckbill assembly have the same outline shape, a high-pressure air groove is formed on the splicing surface of the first duckbill assembly, and a high-pressure air inlet communicating with the high-pressure air groove is also provided on the first duckbill assembly, and a high-pressure air pipe is connected to the high-pressure air inlet; when the first duckbill assembly and the second duckbill assembly are spliced, the splicing surface of the second duckbill assembly is pressed against the high-pressure air groove to form a high-pressure flow channel of the duckbill blade head.

[0006] In a preferred embodiment of the present invention, the high-pressure air tank includes a buffer chamber, a first compression section and a second compression section. The buffer chamber is connected to the high-pressure air inlet. The tail end of the second compression section is an air outlet. The length of the air outlet is not less than 10 mm and the width is not more than 0.2 mm.

[0007] In a preferred embodiment of this invention, a splicing bolt is further provided between the first duckbill assembly and the second duckbill assembly. The rear of the second duckbill assembly has a through hole for the splicing bolt penetrating its side surface and the splicing surface. The splicing surface of the first duckbill assembly has a bottom hole corresponding to the position of the through hole. The threaded part of the splicing bolt passes through the through hole and enters the bottom hole, thus laterally splicing the first and second duckbill assemblies together. The bolt splicing through hole is a countersunk hole.

[0008] In a preferred embodiment of this utility model, a countersunk screw hole is provided in the middle of the positioning connecting plate, and positioning bolt through holes are formed on both sides of the countersunk screw hole. A screw bottom hole corresponding to the countersunk screw hole is provided on the top of the cutter bar. Positioning bottom holes corresponding to the corresponding positioning bolt through holes are respectively provided on the inner surfaces of the first duckbill assembly and the second duckbill assembly. The positioning connecting plate and the cutter bar are connected by countersunk screws of corresponding specifications. The positioning connecting plate and the duckbill cutter head are connected together by two positioning bolts.

[0009] The beneficial effects of this utility model are as follows: On the one hand, this utility model isolates the air knife from the high-pressure air source by using a main air pressure regulating valve and an air flow distribution valve, and uses an air pressure gauge to monitor the air pressure in the high-pressure air pipe, thereby reducing the air knife's inlet pressure fluctuation. On the other hand, it replaces the air knife with a pressure-stabilizing air knife with an optimized internal structure. This improves the air knife's outlet stability from two aspects, thereby further improving the uniformity of the tin layer thickness on the surface of the return band and improving the overall quality stability of the manifold. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of the air knife structure in the illustrated embodiment;

[0012] Figure 3 This is a schematic diagram of the air knife handle assembly structure in the illustrated embodiment;

[0013] Figure 4 This is a schematic diagram of the air knife head assembly structure in the illustrated embodiment;

[0014] Figure 5 This is a schematic diagram of the flow channel assembly structure in the cutter head;

[0015] Figure 6 This is a schematic diagram of the pressure cap assembly structure in the cutter head;

[0016] The components in the attached diagram are labeled as follows:

[0017] 1. Pressure-stabilizing air knife; 2. Digital display pressure gauge; 3. Airflow distribution valve; 4. Main air pressure regulating valve;

[0018] 101. First duckbill assembly; 1011. High-pressure air inlet; 1012. Buffer chamber; 1013. First compression section; 1014. Second compression section; 1015. First positioning bottom hole; 1016. Splicing bottom hole; 102. Second duckbill assembly; 1021. Splicing bolt through hole; 1022. Second positioning bottom hole; 103. Tool bar; 1031. Screw bottom hole; 104.

[0019] Positioning connecting plate, 1041. Countersunk screw hole, 1042. Positioning bolt through hole, 105. Countersunk screw, 106.

[0020] Positioning bolts, 107. Splicing bolts. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] Please see Figures 1 to 6 The embodiments of this utility model include:

[0023] A manifold solder scraping stabilizing device includes: two pressure-stabilizing air knives 1 symmetrically installed on both sides of the manifold's movement path; each pressure-stabilizing air knife 1 has a high-pressure air pipe connected to its blade head; the top ends of the two high-pressure air pipes are connected to a high-pressure air source; a pressure regulating main valve 4 is installed between the high-pressure air source and the connection point of the two high-pressure air pipes; an airflow distribution valve 3 is installed on each high-pressure air pipe; and a digital display pressure gauge 2 is installed on the high-pressure air pipe between each airflow distribution valve 3 and the pressure-stabilizing air knife 1.

[0024] The pressure-stabilizing air knife 1 includes a duckbill cutter head, a cutter rod 103, and a positioning connecting plate 104. The positioning connecting plate 104 is installed on the top of the cutter rod 103, and the cutter rod 103 is vertically fixed to the inner surface of the duckbill cutter head through the positioning connecting plate 104. The duckbill cutter head includes a first duckbill assembly 101 and a second duckbill assembly 102 that are spliced ​​together. The first duckbill assembly 101 and the second duckbill assembly 102 have the same outline shape. A high-pressure air groove is opened on the splicing surface of the first duckbill assembly 101. The first duckbill assembly 101 is also provided with a high-pressure air inlet 1011 that communicates with the high-pressure air groove. The high-pressure air inlet 1011 is connected to a high-pressure air pipe. When the first duckbill assembly 101 and the second duckbill assembly 102 are spliced ​​together, the splicing surface of the second duckbill assembly 102 is pressed against the high-pressure air groove to form a high-pressure flow channel of the duckbill cutter head. The high-pressure air chamber includes a buffer chamber 1012, a first compression section 1013, and a second compression section 1014. The buffer chamber 1012 is connected to the high-pressure air inlet 1011. The tail end of the second compression section 1014 is the air outlet, which has a length of not less than 10 mm and a width of not more than 0.2 mm. In actual implementation, the set length of the air outlet is 20 ± mm and the width is 0.16 ± 0.01 mm. This duckbill cutter head design ensures that the high-pressure air is buffered in the buffer chamber 1012 before reaching the air outlet, reducing the impact of turbulence on airflow stability when the gas enters the flow channel. Then, it is sequentially compressed through the two compression sections, effectively avoiding the internal structural resistance when directly exiting through the small orifice, further improving the air outlet stability of the air knife.

[0025] A splicing bolt 107 is also provided between the first duckbill assembly 101 and the second duckbill assembly 102. The rear of the second duckbill assembly 102 has a splicing bolt through hole 1021 penetrating the side and splicing surface. The splicing surface of the first duckbill assembly 101 has a splicing bottom hole 1016 corresponding to the position of the splicing bolt through hole 1021. The thread of the splicing bolt 107 passes through the splicing bolt through hole 1021 and enters the splicing bottom hole 1016, thus horizontally splicing the first duckbill assembly 101 and the second duckbill assembly 102 together. The bolt splicing through hole 1021 is a countersunk hole. In this way, the first duckbill assembly 101 and the second duckbill assembly 102 are tightly connected together through the action of the positioning connecting plate 104 and the splicing bolt 107, ensuring the overall airtightness between the splicing surfaces.

[0026] The positioning connecting plate has a countersunk screw hole 1041 in the middle, and positioning bolt through holes 1042 are symmetrically arranged on both sides of the countersunk screw hole 1041. The top of the cutter bar has a screw bottom hole 1031 corresponding to the countersunk screw hole. The inner surface of the first duckbill assembly 101 has a first positioning bottom hole 1015 corresponding to the corresponding positioning bolt through hole 1042, and the inner surface of the second duckbill assembly 102 has a second positioning bottom hole 1022 corresponding to the corresponding positioning bolt through hole 1041. With the above structure, the positioning connecting plate 104 and the cutter bar 103 are connected by countersunk screws 105 of the corresponding specifications, and the positioning connecting plate 104 and the duckbill cutter head are connected together by two positioning bolts 106. In this way, the cutter bar 103 can be stably and vertically installed on the duckbill cutter head, which makes it convenient for the pressure stabilizing air knife 1 to adjust the angle between the air outlet and the manifold as needed during actual use.

[0027] The main function of this embodiment is: on the one hand, to use the digital pressure gauge 2 to monitor the air pressure value in the high-pressure pipelines on both sides, and to adjust it in real time through the airflow distribution valve 3 according to the pressure gauge value, so as to keep the air pressure in the two high-pressure pipelines stable; on the other hand, to optimize the high-pressure flow channel structure in the existing air knife, to reduce the structural influence of the high-pressure gas running in the high-pressure flow channel, and to improve the air outlet stability. In this way, the stability of the force of the air knife on the tin-plated surface of the return strip is improved from two aspects, thereby further improving the uniformity of the coating on the surface of the final product of the busbar.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A busbar solder scraping stabilizing device, characterized in that, The slag removal stabilizing device for the manifold includes: two pressure-stabilizing air knives symmetrically installed on both sides of the manifold's movement path; each pressure-stabilizing air knife has a high-pressure air pipe connected to its blade head; the top ends of the two high-pressure air pipes are connected to a high-pressure air source; a main air pressure regulating valve is installed between the high-pressure air source and the connection point of the two high-pressure air pipes; an airflow distribution valve is installed on each high-pressure air pipe; and a pressure gauge is installed on the high-pressure air pipe between each airflow distribution valve and the pressure-stabilizing air knife.

2. The busbar soldering stabilizing device according to claim 1, characterized in that, The pressure-stabilizing air knife includes a duckbill cutter head, a cutter rod, and a positioning connecting plate. The positioning connecting plate is installed on the top of the cutter rod, and the cutter rod is vertically fixed to the inner surface of the duckbill cutter head through the positioning connecting plate. The duckbill cutter head includes a first duckbill assembly and a second duckbill assembly that are spliced ​​together. The first duckbill assembly and the second duckbill assembly have the same outline shape. A high-pressure air groove is formed on the splicing surface of the first duckbill assembly. The first duckbill assembly is also provided with a high-pressure air inlet that communicates with the high-pressure air groove. A high-pressure air pipe is connected to the high-pressure air inlet. When the first duckbill assembly and the second duckbill assembly are spliced ​​together, the splicing surface of the second duckbill assembly is pressed against the high-pressure air groove to form a high-pressure flow channel of the duckbill cutter head.

3. The busbar soldering stabilizing device according to claim 2, characterized in that, The high-pressure air tank includes a buffer chamber, a first compression section and a second compression section. The buffer chamber is connected to the high-pressure air inlet. The tail end of the second compression section is an air outlet. The length of the air outlet is not less than 10 mm and the width is not more than 0.2 mm.

4. The busbar soldering stabilizing device according to claim 2, characterized in that, A splicing bolt is also provided between the first duckbill assembly and the second duckbill assembly. The rear part of the second duckbill assembly is provided with a splicing bolt through hole that penetrates the side and the splicing surface. The splicing surface of the first duckbill assembly is provided with a splicing bottom hole corresponding to the position of the splicing bolt through hole. The screw of the splicing bolt passes through the splicing bolt through hole and enters the splicing bottom hole, thereby splicing the first duckbill assembly and the second duckbill assembly together laterally.

5. The busbar soldering stabilizing device according to claim 4, characterized in that, The bolt joint through hole is a countersunk hole.

6. The busbar soldering stabilizing device according to claim 2, characterized in that, The positioning connecting plate has a countersunk screw hole in the middle, and positioning bolt through holes are formed on both sides of the countersunk screw hole. The top of the cutter bar has a screw bottom hole corresponding to the countersunk screw hole. The inner surfaces of the first duckbill assembly and the second duckbill assembly are respectively provided with positioning bottom holes corresponding to the corresponding positioning bolt through holes. The positioning connecting plate and the cutter bar are connected by countersunk screws of the corresponding specifications. The positioning connecting plate and the duckbill cutter head are connected together by two positioning bolts.

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