Pressing net with adjustable pressing needle position
By designing a pressure mesh with adjustable pressure pin position, the problem of welding mismatch caused by fixed pressure pin position was solved, achieving tight bonding between the welding strip and the battery cell, and improving the product qualification rate of photovoltaic module production.
Patent Information
- Application Number
- CN202423189726.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The fixed position of the pressure pins in the existing screen pressing process cannot be compatible with different cell screens, which leads to mismatch between the solder strip and the cell during the welding process, resulting in problems such as incomplete welding and solder strip misalignment, thus reducing the product qualification rate.
An adjustable pressure net is designed. The position of the pressure needle is adjusted by setting a pin block and a pin groove on the pressure needle crossbar and using a fastening screw. A buffer spring is set in the pressure needle mounting groove to improve flexibility and stability.
The device allows for flexible adjustment of the pressure needle position, improving its usability and stability, ensuring close contact between the welding strip and the battery cell during the welding process, and increasing the product qualification rate.
Smart Images
Figure CN223829714U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic cell grid pressing technology, and in particular to a grid pressing device with adjustable pressing needle position. Background Technology
[0002] In the production of photovoltaic modules, solder ribbons are used to connect the front and back of the solar cells to form a battery string (referred to as string welding). When the string welding machine is working, the solder ribbon is pulled out and cut to a fixed length, generally the width of the short side of two and a half solar cells. After the solder ribbon is pulled out, it is placed on the welding platform. A robot picks up the solar cell and the pressure mesh and places them on the solder ribbon. The solder ribbon overlaps with the main grid on the cell. The pressure mesh is pressed on the solder ribbon to make the solder ribbon and the solar cell fit tightly together. After the above actions are completed, the belt of the welding platform rotates, moving the solar cell, solder ribbon, and pressure mesh to the bottom of the welding light box. The infrared lamps in the light box heat and weld, melting the tin coating on the solder ribbon to form a weld between the solder ribbon and the solar cell. After welding is completed, the belt rotates again to move it to the pressure mesh removal mechanism. The mechanism picks up the pressure mesh and places it on the pressure mesh circulation belt to return to the pressure mesh release point. The above actions are repeated to connect the solar cells using solder ribbons to form battery strings. The battery strings are arranged and combined into a battery array in a specified manner, and then processed into photovoltaic modules through subsequent processes.
[0003] In this process, the role of the pressure mesh is to press the welding strip to fit against the main grid of the solar cell, fix the position of the welding strip, and prevent the welding strip from shifting during belt rotation. The existing pressure mesh consists of a mesh frame, pressure pins, and anti-slip pads. The position of the pressure pins is fixed and cannot be moved. Currently, the mainstream solar cell screens for sizes such as 18X and 210 (side length of solar cell) are different. The existing pressure mesh is not compatible with different solar cell screens. Mismatched pressure mesh will lead to mismatch between the pressure pins and the solar cell screen, and it will not be able to press the welding strip against the main grid during the welding process, resulting in problems such as incomplete welding, welding strip shift, and exposed white areas, which greatly reduces the product qualification rate. Utility Model Content
[0004] The purpose of this invention is to provide a pressure mesh with adjustable pressure needle position.
[0005] To solve the above technical problems, this utility model provides the following technical solution: a pressure mesh with adjustable pressure needle position, comprising a pressure mesh main body plate, a pressure needle crossbar detachably installed on one side top of the pressure mesh main body plate, a pressure needle mounting groove formed on one side surface of the pressure needle crossbar, a buffer spring fixedly installed inside one side of the pressure needle mounting groove, a pressure needle body fixedly installed inside one side of the buffer spring, a pin block fixedly installed on one side top of the pressure needle crossbar, and a mating fastening hole formed on one side top surface of the pin block.
[0006] Preferably, the top of the pressing mesh main plate near the pressing needle crossbar has a pin groove, and the surface of the pressing mesh main plate near the pin groove has a mating connection hole. A fastening connection screw is detachably installed inside the mating connection hole, and a fixing connection suction cup is fixedly connected to the bottom surface of one side of the pressing mesh main plate.
[0007] Preferably, there are several pressure needle mounting slots, which are evenly distributed on the top surface of the pressure needle crossbar. The positions of the pressure needle mounting slots and the buffer springs correspond one-to-one, and the positions of the buffer springs and the pressure needle body correspond one-to-one.
[0008] Preferably, the positions of the pin block and the pin slot correspond one-to-one, the connection relationship between the pin block and the pin slot is a pin connection, the positions of the mating fastening hole and the mating connection hole correspond one-to-one, and the cross-sectional diameters of the mating fastening hole and the mating connection hole are the same.
[0009] Preferably, the fastening screw passes through the interior of the mating connection hole and the mating fastening hole, and the connection between the fastening screw and the pressure mesh body plate is a threaded connection, and the connection between the fastening screw and the pin block is a threaded connection.
[0010] Preferably, there are two pressing mesh main plates and two pressing needle crossbars. The two pressing mesh main plates are symmetrically distributed on both sides of the top of the pressing needle crossbars, and the two pressing needle crossbars are symmetrically distributed on one side of the top of the pressing mesh main plates. The fixed connecting suction cups are symmetrically distributed on the bottom surface of the pressing mesh main plates.
[0011] Compared with related technologies, the adjustable pressure needle mesh provided by this utility model has the following advantages:
[0012] 1. This utility model provides a pressure mesh with adjustable pressure needle position. By setting pin blocks at the top of both sides of the pressure needle crossbar, the pins are directly inserted into the pin slots. At this time, the positions of the mating connection holes and the mating fastening holes correspond one-to-one. The locking operation is achieved directly in the mating connection holes and the mating fastening holes using fastening screws, thus completing the connection and fixation between the pressure mesh body plate and the pressure needle crossbar. A buffer spring and the pressure needle body are set inside the pressure needle mounting slot. This facilitates both easy installation and easy disassembly between the pressure mesh body plate and the pressure needle crossbar, thereby facilitating the replacement of pressure needle crossbars of different specifications for use, improving the flexibility of the pressure needle crossbar and the overall flexibility of the device.
[0013] 2. This utility model provides a pressure net with adjustable pressure needle position. By setting fixed connecting suction cups on the bottom surfaces of both sides of the pressure net main plate, the overall stability of the device can be improved. Pressure net main plates are set on both top sides of the pressure needle crossbar to achieve a uniform fastening effect, further improving the stability of the device in use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This utility model Figure 1 A magnified structural diagram at point A;
[0016] Figure 3 This is a bottom view structural diagram of the main body plate of the pressing mesh of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the pressing mesh main plate and the pressing needle crossbar after assembly.
[0018] The following are labeled in the diagram: 1. Pressing mesh main body plate; 2. Pressing needle crossbar; 3. Pressing needle mounting groove; 4. Buffer spring; 5. Pressing needle body; 6. Pin block; 7. Butt fastening hole; 8. Pin groove; 9. Butt connection hole; 10. Fastening connection screw; 11. Fixed connection suction cup. Detailed Implementation
[0019] Example 1:
[0020] Please see Figure 1-4This utility model provides a technical solution: a pressure mesh with adjustable pressure needle position, including a pressure mesh main plate 1. A pressure needle crossbar 2 is detachably installed on one side of the top end of the pressure mesh main plate 1. A pressure needle mounting groove 3 is formed on one side surface of the pressure needle crossbar 2. A buffer spring 4 is fixedly installed inside one side of the pressure needle mounting groove 3. A pressure needle body 5 is fixedly installed inside one side of the buffer spring 4. A pin block 6 is fixedly installed on one side of the top end of the pressure needle crossbar 2. A mating fastening hole 7 is formed on one side top surface of the pin block 6. A pin groove 8 is formed inside the top end of the pressure mesh main plate 1 near the pressure needle crossbar 2. A mating connection hole 9 is formed on the surface of the pressure mesh main plate 1 near the pin groove 8. A fastening connection screw 10 is detachably installed inside the mating connection hole 9. A fixed connection suction cup 11 is fixedly connected to the bottom surface of one side of the pressure mesh main plate 1. The number of pressure needle mounting grooves 3 is several, and the several pressure needle mounting grooves 3 are evenly distributed on the pressure mesh. On the top surface of the needle crossbar 2, the positions of the pressure needle mounting groove 3 and the buffer spring 4 correspond one-to-one. The positions of the buffer spring 4 and the pressure needle body 5 correspond one-to-one. The positions of the pin block 6 and the pin groove 8 correspond one-to-one. The connection relationship between the pin block 6 and the pin groove 8 is a pin connection. The positions of the mating fastening hole 7 and the mating connection hole 9 correspond one-to-one. The cross-sectional diameters of the mating fastening hole 7 and the mating connection hole 9 are the same. The fastening connection screw 10 passes through the interior of the mating connection hole 9 and the mating fastening hole 7. The connection relationship between the fastening connection screw 10 and the pressing mesh body plate 1 is a threaded connection. The connection relationship between the fastening connection screw 10 and the pin block 6 is a threaded connection. There are two pressing mesh body plates 1 and two pressure needle crossbars 2. The two pressing mesh body plates 1 are symmetrically distributed on the top of both sides of the pressure needle crossbar 2. The two pressure needle crossbars 2 are symmetrically distributed on the top of one side of the pressing mesh body plate 1. The fixed connection suction cups 11 are symmetrically distributed on the bottom surface of the pressing mesh body plate 1.
[0021] In the implementation plan, the pin blocks 6 at the top of both sides of the pressure needle crossbar 2 are directly inserted into the pin groove 8. At this time, the positions of the docking connection hole 9 and the docking fastening hole 7 correspond one-to-one. The fastening connection screw 10 is used to lock the connection directly inside the docking connection hole 9 and the docking fastening hole 7, thus completing the connection and fixation between the pressure mesh body plate 1 and the pressure needle crossbar 2. The buffer spring 4 and the pressure needle body 5 are set inside the pressure needle mounting groove 3. The connection between the pressure mesh body plate 1 and the pressure needle crossbar 2 is convenient for both installation and disassembly, so as to facilitate the replacement of pressure needle crossbars 2 of different specifications for use, improve the flexibility of use of the pressure needle crossbar 2, and improve the flexibility of use of the device.
[0022] In the implementation plan, by setting fixed connecting suction cups 11 on the bottom surfaces of both sides of the pressure mesh main plate 1, the overall stability of the device can be improved. The pressure mesh main plate 1 is set on the top of both sides of the pressure needle crossbar 2 to achieve a uniform fastening effect, further improving the stability of the device in use.
[0023] Working principle:
[0024] By setting the pin blocks 6 at the top of both sides of the pressure needle crossbar 2, the pins are directly inserted into the pin groove 8. At this time, the positions of the docking connection hole 9 and the docking fastening hole 7 correspond one-to-one. The fastening connection screw 10 is used directly inside the docking connection hole 9 and the docking fastening hole 7 to achieve the locking operation, thus completing the connection and fixation between the pressure mesh body plate 1 and the pressure needle crossbar 2. The buffer spring 4 and the pressure needle body 5 are set inside the pressure needle mounting groove 3. The connection between the pressure mesh body plate 1 and the pressure needle crossbar 2 is convenient for both installation and disassembly, so as to facilitate the replacement of pressure needle crossbars 2 of different specifications for use, improve the flexibility of use of the pressure needle crossbar 2, and improve the flexibility of use of the device.
[0025] By setting fixed connecting suction cups 11 on the bottom surfaces of both sides of the pressure mesh main plate 1, the overall stability of the device can be improved. The pressure mesh main plate 1 is set on the top of both sides of the pressure needle crossbar 2 to achieve a uniform fastening effect, further improving the stability of the device in use.
Claims
1. A pressure mesh with adjustable pressure needle position, comprising a pressure mesh main body plate (1), wherein a pressure needle crossbar (2) is detachably mounted on one side top of the pressure mesh main body plate (1), characterized in that: A pressure needle mounting groove (3) is provided on one side surface of the pressure needle crossbar (2). A buffer spring (4) is fixedly installed inside one side of the pressure needle mounting groove (3). A pressure needle body (5) is fixedly installed inside one side of the buffer spring (4). A pin block (6) is fixedly installed at the top of one side of the pressure needle crossbar (2). A mating fastening hole (7) is provided on the top surface of one side of the pin block (6).
2. The pressure mesh with adjustable pressure needle position according to claim 1, characterized in that, The main body plate (1) of the pressing mesh has a pin groove (8) inside the top of one side near the pressing needle crossbar (2). The main body plate (1) of the pressing mesh has a mating connection hole (9) on one side near the pin groove (8). A fastening connection screw (10) is detachably installed inside the mating connection hole (9). A fixed connection suction cup (11) is fixedly connected to one side of the bottom surface of the pressing mesh main body plate (1).
3. The pressure mesh with adjustable pressure needle position according to claim 1, characterized in that, The number of the pressure needle mounting grooves (3) is several, and the several pressure needle mounting grooves (3) are distributed at equal intervals on the top surface of the pressure needle crossbar (2). The positions of the pressure needle mounting grooves (3) and the buffer springs (4) correspond one-to-one, and the positions of the buffer springs (4) and the pressure needle body (5) correspond one-to-one.
4. A pressure mesh with adjustable pressure needle position according to claim 2, characterized in that, The positions of the pin block (6) and the pin groove (8) correspond one-to-one. The connection relationship between the pin block (6) and the pin groove (8) is a pin connection. The positions of the mating fastening hole (7) and the mating connection hole (9) correspond one-to-one. The cross-sectional diameters of the mating fastening hole (7) and the mating connection hole (9) are the same.
5. A pressure mesh with adjustable pressure needle position according to claim 2, characterized in that, The fastening screw (10) passes through the interior of the mating connection hole (9) and the mating fastening hole (7). The connection between the fastening screw (10) and the pressure mesh body plate (1) is a threaded connection. The connection between the fastening screw (10) and the pin block (6) is a threaded connection.
6. A pressure mesh with adjustable pressure needle position according to claim 2, characterized in that, The number of the pressing mesh main plate (1) and the pressing needle crossbar (2) is two. The two pressing mesh main plates (1) are symmetrically distributed on both sides of the pressing needle crossbar (2). The two pressing needle crossbars (2) are symmetrically distributed on one side of the pressing mesh main plate (1). The fixed connection suction cup (11) is symmetrically distributed on the bottom surface of the pressing mesh main plate (1).