A new submerged PCB internal welding structure

Abstract

The utility model belongs to PCB board manufacturing and electronic connection technical field especially is a brand -new sunken PCB board inner hidden welding structure, including connector, PCB pad, shielding iron shell and wire rod, the PCB pad fixed mounting is in the connector, is provided with two PCB welding areas for wire rod conductor welding on the PCB pad, and two PCB welding areas all are set up with welding groove, two conductors of wire rod respectively extend to corresponding welding groove, shielding iron shell is connected and is installed on the connector and PCB pad, the utility model design is reasonable, not only can effectively position wire rod conductor, effectively prevent the situation that wire rod displacement or deflection appears in the welding process, can effectively solve the situation that the interference between the welding spot and shielding iron shell and the short circuit possibly caused when wire rod conductor and PCB pad are welded in prior art, thereby prolongs the service life of product.

Description

Technical Field

[0001] This utility model relates to the field of PCB board manufacturing and electronic connection technology, and in particular to a novel recessed PCB board internal welding structure. Background Technology

[0002] In the field of PCB board soldering, traditional soldering structures have long faced numerous technical challenges, failing to meet the high requirements of assembly precision, signal stability, and lifespan in communication equipment, automotive electronics, and other industries. Traditional soldering often employs a planar design, with wire conductors directly soldered to the PCB pad surface. This can easily lead to excessively high solder joints due to conductor protrusion. When assembling shielding components later, these solder joints often interfere with the shielding shell, causing assembly jams, component damage, or even short circuits. Repeated adjustments to the solder joint height are necessary, severely reducing production efficiency. Furthermore, traditional structures lack effective wire positioning mechanisms, requiring manual handling or additional clamps to fix the conductors during soldering. This is not only cumbersome but also prone to insufficient soldering precision due to conductor misalignment, affecting equipment stability.

[0003] Therefore, this utility model proposes a novel recessed PCB board internal welding structure to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings mentioned in the background section by proposing a novel recessed PCB board internal welding structure.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a novel recessed PCB board internal welding structure, including a connector, PCB pads, shielding iron shell and wires;

[0007] The PCB pad is fixedly mounted on the connector. The PCB pad has two PCB soldering areas for soldering wire conductors, and each of the two PCB soldering areas has a soldering groove. The two conductors of the wire extend into the corresponding soldering grooves respectively. The shielding iron shell is snapped onto the connector and the PCB pad.

[0008] The inner wall of the welding groove is provided with a positioning groove for limiting the conductor of the wire.

[0009] Preferably, the welding groove is U-shaped.

[0010] Preferably, the positioning groove is shaped like a frustum.

[0011] Preferably, the opening of the welding groove faces away from the connector body.

[0012] Preferably, the inner wall of the shielding iron shell is in close contact with the edge of the PCB pad.

[0013] Preferably, the connector is fixed to the PCB pad using an embedded design.

[0014] Preferably, a limiting piece is fixedly installed on the shielding iron shell, and the limiting piece is in contact with the outer side of the wire.

[0015] Preferably, the top side of the limiting piece is arc-shaped.

[0016] Preferably, the width of the welding groove is 1.5-2.5 times the diameter of the wire conductor.

[0017] Preferably, the surface of the PCB soldering area is gold-plated.

[0018] The beneficial effects of this utility model are:

[0019] This invention utilizes a U-shaped welding groove to facilitate convenient placement and initial positioning of the wire conductor, effectively avoiding the problem of excessively high solder joints interfering with the shielding shell in traditional welding methods. The frustum-shaped positioning groove not only provides stable positioning of the wire conductor but also accommodates conductors of different diameters, ensuring welding accuracy and enhancing structural versatility. The welding groove opening faces away from the connector body, providing ample operating space for welding tools and significantly improving the convenience and efficiency of welding operations. Furthermore, the tight fit between the inner wall of the shielding shell and the edge of the PCB pads provides reliable physical protection for the welding area and effectively shields against external electromagnetic interference, enhancing the signal transmission stability of the entire structure. The limiting plate on the shielding shell and its curved top surface allow it to contact the outer side of the wire, further fixing the wire's position and preventing displacement due to vibration or pulling during use. This ensures the connection stability of the welding area and reduces the risk of wire sheath wear, effectively improving the safety and service life of the structure.

[0020] The gold plating treatment on the surface of the PCB soldering area not only improves the reliability and conductivity of the soldering, but also enhances its oxidation resistance, further extending the overall service life of the structure. The width of the soldering groove is 1.5-2.5 times the diameter of the wire conductor, which allows the solder to fully wrap the conductor during soldering, forming a strong solder joint, while avoiding solder overflow from causing adverse effects on surrounding components. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of a novel recessed PCB board internal welding structure proposed in this utility model.

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure from another perspective;

[0024] Figure 3 for Figure 1 Exploded view;

[0025] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure from another perspective;

[0026] Figure 5 This is a partial three-dimensional structural diagram of the present invention.

[0027] In the diagram: 1. Connector; 2. PCB pad; 201. PCB soldering area; 21. Soldering groove; 22. Positioning groove; 3. Wire; 4. Shielding shell; 41. Limiting plate. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Reference Figure 1-5 A novel recessed PCB board internal welding structure includes a connector 1, PCB pads 2, shielding iron shell 4, and wires 3.

[0030] PCB pad 2 is fixedly mounted on connector 1. To ensure connection strength and facilitate subsequent disassembly and maintenance, connector 1 and PCB pad 2 are fixed by an embedded design. A stable connection is achieved through the cooperation of a precision slot and a boss. This design not only reduces the space occupied by traditional screw fixing, but also effectively avoids poor contact problems caused by loose screws. In the actual assembly process, simply push PCB pad 2 along the preset track of connector 1 to complete the initial positioning and fixing, which significantly improves production assembly efficiency. At the same time, the embedded structure also enhances the connection rigidity between connector 1 and PCB pad 2, making the overall structure less prone to relative displacement when subjected to external impact, thereby ensuring the stability of the soldering part and the reliability of signal transmission.

[0031] The PCB pad 2 is provided with two PCB soldering areas 201 for soldering the conductors of the wires 3, and each of the two PCB soldering areas 201 is provided with a soldering groove 21. In order to facilitate the placement and initial positioning of the conductors of the wires 3, avoid the solder joints after soldering being too high and interfering with the shielding iron shell 4, and facilitate the deep operation of the soldering tools, thereby improving the convenience and efficiency of the soldering operation, the soldering groove 21 is U-shaped, and the opening of the soldering groove 21 faces away from the main body of the connector 1. The two conductors of the wires 3 extend into the corresponding soldering grooves 21 respectively.

[0032] The shielding shell 4 is snapped onto the connector 1 and the PCB pad 2. The inner wall of the shielding shell 4 fits tightly against the edge of the PCB pad 2, which not only provides physical protection for the soldering parts, but also effectively shields external electromagnetic interference, enhancing the signal transmission stability of the entire structure. Since the shell material has good electromagnetic shielding performance, it can reduce the influence of external electromagnetic fields on the signal transmission of the wires, significantly enhancing the signal transmission stability of the entire structure. It is especially suitable for communication equipment, precision instruments and other scenarios with high signal quality requirements.

[0033] The inner wall of the welding groove 21 is provided with a positioning groove 22 for limiting the conductor of the wire 3. In order to effectively limit the conductor of the wire 3 and to adapt well to the limiting of conductors of different diameters, the positioning groove 22 is set in a frustum shape.

[0034] In this embodiment, in order to further fix the position of the wire 3 and prevent the wire 3 from shifting due to vibration or pulling during use, thereby ensuring the connection stability of the welding part, and at the same time ensuring the fit of the limiting piece 41 when in contact with the wire 3, reducing the pressure on the surface of the wire 3, further reducing the situation where the outer sheath of the wire 3 is damaged and the internal conductor of the wire 3 is exposed, thus improving the safety and service life of the structure, the limiting piece 41 is fixedly installed on the shielding iron shell 4, and the limiting piece 41 is in contact with the outer side of the wire 3, and the top side of the limiting piece 41 is set with an arc surface.

[0035] In this embodiment, in order to ensure that the solder can fully cover the conductor during welding, thereby forming a strong solder joint, while avoiding poor contact caused by incomplete solder coverage, and to prevent excessive solder overflow, avoid excess solder sticking to surrounding components, reduce the risk of short circuit, and improve the electrical safety of the structure, the width of the welding groove 21 is 1.5-2.5 times the diameter of the conductor of the wire 3.

[0036] In this embodiment, in order to improve the reliability and conductivity of the soldering, and at the same time enhance its oxidation resistance and extend its service life, the surface of the PCB soldering area 201 is gold-plated.

[0037] Working principle: In use, first strip the insulation from the two conductor ends of wire 3 and place them into the two soldering grooves 21 on the PCB pad 2 respectively, and insert them into the corresponding positioning grooves 22. The U-shaped arrangement of the soldering grooves 21 achieves initial positioning, while the frustum-shaped positioning grooves 22 further effectively limit the conductors of wire 3. Even if there are certain differences in the diameter of the conductors of wire 3, it can adapt well. Then, use a soldering tool to penetrate into the opening of the soldering groove 21 away from the main body of the connector 1 and perform the soldering operation. Due to the reasonable design of the opening direction and sufficient operating space, the soldering operation can be carried out conveniently.

[0038] During the welding process, the design of the welding groove 21, with a width 1.5-2.5 times the conductor diameter of the wire 3, allows the solder to fully wrap the conductor, forming a strong solder joint. At the same time, it prevents the solder from overflowing and affecting surrounding components. After welding is completed, the shielding iron shell 4 is snapped onto the connector 1 and the PCB pad 2. At this time, the inner wall of the shielding iron shell 4 is tightly fitted with the edge of the PCB pad 2, forming physical protection for the welding part and effectively shielding external electromagnetic interference. The limiting piece 41 on the shielding iron shell 4 will contact the outer side of the wire 3. The arc surface of its top side ensures the fit with the wire 3, reduces the pressure on the surface of the wire 3, and further fixes the position of the wire 3, preventing displacement due to vibration or pulling during use. This ensures the connection stability of the welding part, improves structural safety and service life. In addition, the gold plating on the surface of the PCB welding area 201 also plays a role in improving welding reliability, conductivity and enhancing oxidation resistance during this process.

[0039] The above provides a detailed description of a novel recessed PCB board in-sink soldering structure provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A novel recessed PCB board internal welding structure, characterized in that, It includes connectors (1), PCB pads (2), shielding shell (4), and wires (3); The PCB pad (2) is fixedly installed on the connector (1). The PCB pad (2) is provided with two PCB soldering areas (201) for soldering conductors of wire (3), and each of the two PCB soldering areas (201) is provided with a soldering groove (21). The two conductors of the wire (3) extend into the corresponding soldering groove (21) respectively. The shielding iron shell (4) is snapped onto the connector (1) and the PCB pad (2). The inner wall of the welding groove (21) is provided with a positioning groove (22) for limiting the conductor of the wire (3).

2. The novel recessed PCB board in-sink welding structure according to claim 1, characterized in that: The welding groove (21) is U-shaped.

3. The novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: The positioning groove (22) is shaped like a frustum.

4. The novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: The opening of the welding groove (21) faces away from the body of the connector (1).

5. A novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: The inner wall of the shielding iron shell (4) fits tightly against the edge of the PCB pad (2).

6. The novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: The connector (1) is fixed to the PCB pad (2) by an embedded design.

7. A novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: A limiting piece (41) is fixedly installed on the shielding iron shell (4), and the limiting piece (41) is in contact with the outer side of the wire (3).

8. A novel recessed PCB board in-sinking soldering structure according to claim 7, characterized in that: The top side of the limiting piece (41) is arc-shaped.

9. A novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: The width of the welding groove (21) is 1.5-2.5 times the diameter of the conductor of the wire (3).

10. A novel recessed PCB board in-sinking soldering structure according to claim 1, characterized in that: The surface of the PCB soldering area (201) is gold-plated.

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