Flexible circuit board structure for preventing tin bridging

Abstract

A flexible circuit board structure for preventing solder bridging includes a soldering base, a circuit board body, and auxiliary soldering components. The soldering base has a plurality of solder pads arranged at intervals. The end of the circuit board body has a plurality of solder feet, each corresponding to a solder pad. The auxiliary soldering components are attached to the circuit board body, and the bottom of the auxiliary soldering components has a plurality of isolation blocks that engage with the solder feet to isolate any adjacent solder feet. This invention, by designing a flexible circuit board structure with auxiliary soldering components, effectively prevents solder bridging during the soldering process. The isolation grooves on the soldering base, in conjunction with the isolation blocks of the auxiliary soldering components, not only further prevent solder bridging but also help position the solder feet and solder pads. This invention is highly practical and has significant potential for widespread application.

Description

Technical Field

[0001] This utility model relates to a circuit board, and more particularly to a flexible circuit board structure that prevents solder bridging. Background Technology

[0002] Flexible printed circuit boards (PCBs) are made from flexible insulating substrates. They offer excellent electrical performance, meet the design requirements for smaller and higher-density installations, and help reduce assembly steps and enhance reliability. PCBs are the only solution for meeting the miniaturization and mobility requirements of electronic products. They can be freely bent, rolled, and folded, withstand millions of dynamic bends without damaging the wires, and can be arranged arbitrarily according to spatial layout requirements. They can also move and stretch freely in three-dimensional space, thereby achieving integration of component assembly and wire connection.

[0003] The most common connection methods for flexible circuit boards are connector snap-fit ​​connection or direct soldering. Soldering has lower requirements for the structural design of the circuit board and does not require additional connectors, but it requires high precision in soldering techniques. In particular, because the solder joints on flexible circuit boards are usually close together, solder bridging can easily occur, leading to short circuits in the functional circuits. Utility Model Content

[0004] Therefore, it is necessary to provide a flexible circuit board structure that prevents solder bridging, addressing the shortcomings of existing technologies.

[0005] A flexible circuit board structure for preventing solder bridging includes a soldering base, a circuit board body, and auxiliary soldering components. The soldering base has a plurality of solder pads arranged at intervals. The end of the circuit board body has a plurality of solder feet, each corresponding to one of the solder pads. The auxiliary soldering components are attached to the circuit board body, and the bottom of the auxiliary soldering components has a plurality of spacers that engage with the solder feet to isolate any adjacent solder feet.

[0006] Furthermore, the welding base is also provided with several isolation grooves, which are arranged between several welding pads and are all open at their outer ends. Several isolation blocks at the bottom of the auxiliary welding component extend below the circuit board body and are correspondingly engaged in the several isolation grooves.

[0007] Furthermore, adhesive tape is affixed to the bottom of the isolation groove. One side of the auxiliary welding component is also provided with several comb teeth, which are arranged sequentially at intervals and correspond one-to-one with several isolation grooves.

[0008] Furthermore, the auxiliary welding component is made of thermally conductive metal, and a heating groove is provided at the upper end of the auxiliary welding component.

[0009] Furthermore, the bottom of the isolation groove is designed to slope downwards from the inner end to the outer end.

[0010] Furthermore, the flexible circuit board structure for preventing solder bridging also includes a fixing buckle, and the circuit board body is also provided with a fixing slot. The fixing buckle engages with the auxiliary soldering component from bottom to top, and the fixing buckle and the fixing slot engage and limit each other.

[0011] In summary, the beneficial effects of this utility model's flexible circuit board structure for preventing solder bridging are as follows: by designing a flexible circuit board structure with auxiliary soldering components, it can effectively prevent solder bridging during the soldering process; the isolation groove on the soldering base, in conjunction with the isolation block of the auxiliary soldering components, not only further prevents solder bridging but also helps position the solder feet and pads; the bottom of the isolation groove is designed with removable adhesive tape, which can further reduce the risk of solder bridging; and the design of the fixing buckle structure makes it easier to assemble and disassemble the circuit board body and the auxiliary soldering components; this utility model is highly practical and has significant potential for widespread application. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a flexible circuit board structure for preventing solder bridging according to the present invention;

[0013] Figure 2 for Figure 1 A schematic diagram of the decomposed structure;

[0014] Figure 3 for Figure 2 Exploded view of the welding seat;

[0015] Figure 4 for Figure 2 A schematic diagram of the structure of the circuit board body;

[0016] Figure 5 for Figure 2 A schematic diagram of the auxiliary welding components. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0018] like Figures 1 to 5 As shown, this utility model provides a flexible circuit board structure 100 to prevent solder bridging, which includes a soldering base 10, a circuit board body 20, and auxiliary soldering components 30.

[0019] The soldering base 10 is provided with a plurality of solder pads 11, which are arranged sequentially at intervals. The end of the circuit board body 20 is provided with a plurality of solder feet 21, which are respectively provided with a plurality of solder pads 11. The auxiliary soldering component 30 is attached to the circuit board body 20, and the bottom of the auxiliary soldering component 30 is provided with a plurality of isolation blocks 31, which are respectively engaged between a plurality of solder feet 21 to isolate any adjacent solder feet 21.

[0020] When soldering flexible circuit boards, the auxiliary soldering component 30 is first attached to the end of the circuit board body 20, and then the solder pads 21 are aligned and soldered to the pads 11. Due to the isolation effect of the auxiliary soldering component 30 on each solder pad 21, solder bridging between adjacent solder pads 21 can be effectively prevented. After soldering is completed, the auxiliary soldering component 30 can be removed from the circuit board body 20 to avoid affecting the circuit board's heat dissipation.

[0021] The soldering base 10 is also provided with a plurality of isolation grooves 12, which are arranged between a plurality of solder pads 11 and are all open at their outer ends. A plurality of isolation blocks 31 at the bottom of the auxiliary soldering component 30 extend below the circuit board body 20 and are correspondingly engaged within the plurality of isolation grooves 12. The isolation grooves 12 not only work with the isolation blocks 31 to further isolate the solder feet 21 and enhance the anti-solder bridging effect during soldering, but also enable more precise vertical alignment between the solder feet 21 and the solder pads 11, thereby improving the reliability of soldering.

[0022] The bottom of the isolation groove 12 is also covered with adhesive tape 13. One side of the auxiliary welding component 30 is also provided with several comb teeth 32, which are arranged sequentially at intervals and correspond one-to-one with several isolation grooves 12. The adhesive tape 13 can catch the molten solder that may flow into the isolation groove 12 along the gaps during the welding process, while the comb teeth 32 can be used to scrape off the adhesive tape 13 and any residual solder in the isolation groove 12 after the auxiliary welding component 30 is removed, further preventing possible solder bridging.

[0023] Specifically, in this embodiment, the auxiliary welding component 30 is made of a thermally conductive metal, and its upper end is provided with a heating groove 33. The thermally conductive auxiliary welding component 30 with the heating groove 33 can specifically heat the spacer 12, and the high temperature can soften the solder and reduce its adhesiveness, making it easier to scrape off the adhesive tape 13 and any residual solder in the spacer 12. The bottom of the spacer 12 is designed to slope downwards from the inner end to the outer end. The sloped design of the spacer 12 allows any molten solder that may flow in during the welding process to flow out from the spacer 12.

[0024] The flexible circuit board structure 100 for preventing solder bridging also includes a fixing buckle 40, and the circuit board body 20 is also provided with a fixing slot 22. The fixing buckle 40 engages with the auxiliary soldering component 30 from bottom to top, and the fixing buckle 40 and the fixing slot 22 engage and limit each other. The fixing buckle 40 structure facilitates the installation and removal of the auxiliary soldering component 30 and the circuit board body 20.

[0025] In summary, the beneficial effects of the flexible circuit board structure 100 for preventing solder bridging of this utility model are as follows: by designing a flexible circuit board structure with an auxiliary welding component 30, it can effectively prevent the problem of solder bridging during the welding process; the isolation groove 12 designed on the welding seat 10 cooperates with the isolation block 31 of the auxiliary welding component 30, which can not only further prevent solder bridging, but also help to position the solder feet 21 and the pads 11; the bottom of the isolation groove 12 is designed with a scrapable adhesive tape 13, which can further reduce the risk of solder bridging; and the design of the fixing buckle 40 structure makes it easier to disassemble and assemble the circuit board body 20 and the auxiliary welding component 30; this utility model is highly practical and has strong promotional significance.

[0026] The embodiments described above illustrate only one implementation of the utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be determined by the appended claims.

Claims

1. A flexible circuit board structure to prevent solder bridging, characterized in that: The circuit board includes a soldering base, a circuit board body, and auxiliary soldering components. The soldering base has a plurality of solder pads arranged in a series of intervals. The circuit board body has a plurality of solder feet at its ends, and the solder feet are respectively arranged corresponding to the solder pads. The auxiliary soldering components are attached to the circuit board body, and the bottom of the auxiliary soldering components is also provided with a plurality of isolation blocks, which are respectively engaged between the solder feet to isolate any adjacent solder feet.

2. The flexible circuit board structure for preventing solder bridging as described in claim 1, characterized in that: The welding base is also provided with several isolation grooves, which are arranged between several welding pads and are all open at their outer ends; several isolation blocks at the bottom of the auxiliary welding component extend below the circuit board body and are correspondingly engaged in several isolation grooves.

3. The flexible circuit board structure for preventing solder bridging as described in claim 2, characterized in that: The bottom of the isolation groove is also covered with adhesive tape; one side of the auxiliary welding component is also provided with several comb teeth, which are arranged in sequence at intervals and correspond one-to-one with several isolation grooves.

4. The flexible circuit board structure for preventing solder bridging as described in claim 2, characterized in that: The auxiliary welding component is made of thermally conductive metal, and a heating groove is provided at the upper end of the auxiliary welding component.

5. The flexible circuit board structure for preventing solder bridging as described in claim 2, characterized in that: The bottom of the isolation groove is designed to slope downwards from the inner end to the outer end.

6. The flexible circuit board structure for preventing solder bridging as described in claim 1, characterized in that: It also includes a fixing buckle, and the circuit board body is also provided with a fixing slot; the fixing buckle engages with the auxiliary welding component from bottom to top, and the fixing buckle and the fixing slot engage and limit each other.

Images