Welding wire and silicon wafer welding installation structure

Abstract

The welding installation structure comprises a welding base top plate, a welding base middle-layer plate and a welding base bottom plate, a welding base installation cavity position is formed in the middle of the welding base bottom plate, the welding base middle-layer plate is located in the welding base installation cavity position, the welding base top plate covers the welding base middle-layer plate, and a ventilation column and a guide positioning column are arranged in the welding base installation cavity position; a heat insulation plate is arranged on the welding seat bottom plate, a plurality of blowing connecting rings are installed at the lower end of the welding seat bottom plate, ventilation rings are installed at the lower ends of the blowing connecting rings, ventilation cavities are formed between the blowing connecting rings and the ventilation rings, and a plurality of ejector pin shafts are distributed on the welding seat middle-layer plate, penetrate through the welding seat top plate and then extend upwards. According to the welding installation structure for the welding wire and the silicon wafer, the top plate, the middle-layer plate and the bottom plate are combined together through the guide positioning columns, the relative positions are fixed, when heating is conducted on the lower portion, the heat insulation plate effectively insulates heat, meanwhile, the ejector pin shaft abuts against the welding wire to the lower surface of the silicon wafer, and the hot welding quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon wafer serial welding, and in particular to a welding installation structure for a welding wire and a silicon wafer. Background Art

[0002] Photovoltaic solar wafers are the core and most valuable component of solar power generation systems. Their function is to convert solar energy into electricity, which is then stored in batteries or used directly as a load. However, the weld structure of BC cells (back-contact cells, which can be combined with various circuits) is unstable. Lifting the welding wire prevents it from contacting the wafer tightly while maintaining its position. Furthermore, the welding process requires heating from both the top and bottom. Summary of the Invention

[0003] One purpose of the present invention is to provide a welding installation structure for welding wire and silicon wafer, which uses guiding and positioning columns to combine the welding seat top plate, welding seat middle plate and welding seat bottom plate together, and uses a heat insulation plate for heat insulation. Through ventilation, the pin shaft on the middle plate pushes the welding wire tightly against the silicon wafer for hot welding.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The support frame is provided with a circle, and the support frame is provided with a circle, and the support frame is provided with a circle, and a guide pin is provided on the support frame.

[0006] As a preferred technical solution, a base plate air pipe joint is provided on one side of the welding seat base plate, and the base plate air pipe joint is communicated with the ventilation column and the ventilation cavity.

[0007] As a preferred technical solution, a heating plate is installed between the welding seat middle plate and the welding seat top plate, a heating rod is fixed in the heating plate, and a temperature sensor is installed on one side of the heating plate.

[0008] As a preferred technical solution, lower pressing bars are fixed on both sides of the welding seat top plate, upper pressing bars are movable along the left and right directions on the lower pressing bars, and welding wire clamps are provided on the lower pressing bars and the upper pressing bars.

[0009] As a preferred technical solution, a bead limiting block is provided on the outer side of the welding seat top plate. The bead limiting block moves along the front-back direction, and a limiting platform is formed on the outer end of the bead limiting block.

[0010] As a preferred technical solution, a welding seat middle layer support column is provided on the welding seat middle layer plate, a support column limit block is installed at the lower end of the welding seat middle layer support column, and a magnet is provided inside the support column limit block.

[0011] As a preferred technical solution, a magnet connecting shaft is installed inside the middle support column of the welding seat, the lower end of the magnet connecting shaft is connected to the magnet by a screw, and a spring is installed on the upper end of the magnet connecting shaft, and the spring is inside the middle support column of the welding seat.

[0012] The beneficial effects of the present invention are: providing a welding installation structure for welding wire and silicon wafer, which combines the top plate, the middle plate and the bottom plate together through the guide positioning column, and fixes the relative positions. When heating is performed from below, the heat insulation plate effectively insulates heat, and at the same time the ejector shaft pushes the welding wire against the lower surface of the silicon wafer, thereby improving the quality of thermal welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0014] Figure 1 This is a schematic diagram of a first overall structure of a welding installation structure for a welding wire and a silicon wafer according to an embodiment (with welding wire);

[0015] Figure 2 This is a second overall structural diagram of a welding installation structure for a welding wire and a silicon wafer according to an embodiment (without the welding wire);

[0016] Figure 3 An exploded view of a welding installation structure of a welding wire and a silicon wafer according to an embodiment;

[0017] Figure 4 This is a structural diagram of the assembly of the welding seat top plate and the welding seat middle plate according to the embodiment;

[0018] Figure 5 This is a structural diagram of the assembly of the welding base middle plate and the welding base bottom plate described in the embodiment;

[0019] Figure 6 A cross-sectional view of a welding installation structure of a welding wire and a silicon wafer according to an embodiment;

[0020] Figure 7 An exploded view of the middle plate of the weld base described in the embodiment;

[0021] Figure 8 An exploded view of the welding base plate described in the embodiment;

[0022] Figure 9 2 is a cross-sectional view of the blowing connecting ring described in the embodiment.

[0023] Figures 1 to 9 middle:

[0024] 1. Welding seat top plate; 2. Welding seat middle plate; 3. Welding seat bottom plate; 4. Welding seat installation cavity; 5. Ventilation column; 6. Guide positioning column; 7. Heat insulation plate; 8. Air blowing connecting ring; 9. Breathing ring; 10. Ventilation cavity; 11. Ejector shaft; 12. Bottom plate air pipe connector; 13. Heating plate; 14. Lower pressure strip; 15. Upper pressure strip; 16. Welding wire clamp; 17. Pressure strip limit block; 18. Limiting platform; 19. Welding seat middle support column; 20. Support column limit block; 21. Magnet; 22. Magnet connecting shaft; 23. Spring; 24. Welding wire; 25. Temperature sensor. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0026] like Figures 1 to 9 As shown in this embodiment, a welding installation structure for welding wire and silicon wafer includes a welding seat top plate 1, a welding seat middle plate 2 and a welding seat bottom plate 3. A welding seat installation cavity 4 is provided in the middle of the welding seat bottom plate 3. The welding seat middle plate 2 is located in the welding seat installation cavity 4. The welding seat top plate 1 covers the upper part of the welding seat middle plate 2. A ventilation column 5 and a guide positioning column 6 are provided in the welding seat installation cavity 4. The upper end of the ventilation column 5 and the upper end of the guide positioning column 6 both pass through the welding seat. The middle layer plate 2 of the seat is then inserted into the top plate 1 of the welding seat. A heat insulation plate 7 is provided on the bottom plate 3 of the welding seat. The heat insulation plate 7 is locked on the upper edge of the welding seat installation cavity 4. A number of blowing connecting rings 8 are installed at the lower end of the welding seat bottom plate 3. A breathable ring 9 is installed at the lower end of the blowing connecting ring 8. A ventilation cavity 10 is provided between the blowing connecting ring 8 and the breathable ring 9. A number of ejector shafts 11 are distributed on the middle layer plate 2 of the welding seat. The ejector shaft 11 passes through the top plate 1 of the welding seat and extends upward.

[0027] When the welding wire 24 and the silicon wafer are stabilized, air is ventilated from the position of the breathable ring 9, and the blowing connecting ring 8 uses the Bernoulli force to bring in gas. The ejector shaft 11 is pressed against the welding wire 24 on the silicon wafer while blowing air to prevent the temperature of the non-welding point position on the silicon wafer from being too high. In addition, the upper end of the ventilation column 5 adsorbs the silicon wafer on the welding seat top plate 1, and the heat insulation plate 7 blocks the heat, effectively protecting the temperature of the various components on the welding seat middle plate 2 and the welding seat bottom plate 3. The guide and positioning column 6 combines the welding seat top plate 1, the welding seat middle plate 2 and the welding seat bottom plate 3 together.

[0028] A base plate air pipe joint 12 is provided on one side of the welding base plate 3. The base plate air pipe joint 12 is connected to the ventilation column 5 and the ventilation cavity 10. The air is received from the base plate air pipe joint 12. The gas from the ventilation column 5 adsorbs and fixes the silicon wafer. The gas in the ventilation cavity 10 drives the blowing connecting ring 8 to drive the gas to spray to the bottom of the welding base middle plate 2 and the welding base base plate 3.

[0029] A heating plate 13 is installed between the welding seat middle plate 2 and the welding seat top plate 1. A heating rod is fixed in the heating plate 13. A temperature sensor 25 is installed on one side of the heating plate 13. During the hot welding process, the heating under the silicon wafer relies on the power of the heating rod to make the heating plate 13 generate heat to the welding seat top plate 1. The temperature sensor 25 is used to control the length of time the heating rod is heating. Lower pressing strips 14 are fixed on both sides of the welding seat top plate 1. An upper pressing strip 15 is movable along the left and right directions on the lower pressing strip 14. Wire clamps 16 are provided on both the lower pressing strip 14 and the upper pressing strip 15.

[0030] A pressure strip limit block 17 is provided on the outer side of the welding seat top plate 1. The pressure strip limit block 17 moves along the front and rear directions. The outer end of the pressure strip limit block 17 is formed with a limit platform 18. The movable upper pressure strip 15 on the left and right sides drives the welding wire clamping block 16 to clamp the welding wire 24 on the welding wire clamping block 16 of the fixed lower pressure strip 14. In the front and rear directions, the pressure strip limit block 17 moves inward, and the limit platform 18 presses the end of the welding wire 24 inward to position it.

[0031] A welding seat middle layer support column 19 is provided on the welding seat middle layer plate 2, and a support column limit block 20 is installed at the lower end of the welding seat middle layer support column 19, and a magnet 21 is provided inside the support column limit block 20, and a magnet connecting shaft 22 is installed inside the welding seat middle layer support column 19, and the lower end of the magnet connecting shaft 22 is connected to the magnet 21 by screws, and a spring 23 is installed at the upper end of the magnet connecting shaft 22, and the spring 23 is inside the welding seat middle layer support column 19.

[0032] Through the magnet 21 under the support column limit block 20, the entire fixed structure can be magnetically attracted to the welding module, which is convenient for adjusting the position. In addition, the spring 23 on the magnet connecting shaft 22 can ensure that there will be no hard collision during the magnetic attraction process, thereby extending the service life.

[0033] It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present invention and the technical principles used. Within the technical scope disclosed by the present invention, any changes or replacements that can be easily thought of by technicians familiar with this technical field should be covered within the scope of protection of the present invention.

Claims

1. A welding installation structure for a welding wire and a silicon wafer, characterized in that: The cam is secured to the upper edge of the support frame, and the support frame is secured to the upper edge of the support frame when the cam is in the engagement with the support member.

2. The welding installation structure of a welding wire and a silicon wafer according to claim 1, characterized in that: A bottom plate air pipe joint is provided on one side of the welding seat bottom plate, and the bottom plate air pipe joint is communicated with the ventilation column and the ventilation cavity.

3. The welding installation structure of a welding wire and a silicon wafer according to claim 1, characterized in that: A heating plate is installed between the welding seat middle plate and the welding seat top plate, a heating rod is fixed in the heating plate, and a temperature sensor is installed on one side of the heating plate.

4. The welding installation structure of a welding wire and a silicon wafer according to claim 1, characterized in that: Lower pressing bars are fixed on both sides of the welding seat top plate, upper pressing bars are movable along the left and right directions on the lower pressing bars, and welding wire clamping blocks are provided on the lower pressing bars and the upper pressing bars.

5. The welding installation structure of a welding wire and a silicon wafer according to claim 1, characterized in that: A beading limit block is provided on the outer side of the welding seat top plate. The beading limit block moves along the front-back direction, and the outer end of the beading limit block is formed with a limit platform.

6. The welding installation structure of a welding wire and a silicon wafer according to claim 1, characterized in that: A welding seat middle layer support column is provided on the welding seat middle layer plate, a support column limit block is installed at the lower end of the welding seat middle layer support column, and a magnet is provided inside the support column limit block.

7. The welding installation structure of a welding wire and a silicon wafer according to claim 6, characterized in that: A magnet connecting shaft is installed inside the middle support column of the welding seat, the lower end of the magnet connecting shaft is connected to the magnet through a screw, and a spring is installed on the upper end of the magnet connecting shaft, and the spring is inside the middle support column of the welding seat.

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