PCB pad arrangement structure facilitating cable soldering

Abstract

The utility model relates to the technical field of electronic circuit connection discloses PCB pad arrangement structure convenient for cable welding, including PCB board, a plurality of pads and cable, a plurality of pads are arranged at the surface of PCB board at intervals, and are arranged in turn in arc shape, the end of cable is equipped with the bare core that forms of a plurality of skin processing, and the bare core is welded fixed one to one with the pad, and the welding length of each bare core is consistent, through setting the pad as arc arrangement, the problem of traditional parallel arrangement when the middle cable bare core is too long is solved, makes the bare core length consistent after all cable welding, avoids the cable stress concentration caused by length difference, improves the stability and service life of connection structure, and the visual jarring feeling of the line length not being identical is eliminated simultaneously, improves overall aesthetic appearance.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic circuit connection, and more specifically, to a PCB pad arrangement structure that facilitates cable soldering. Background Technology

[0002] In electronic devices, the connection between cables and solder pads on a PCB is a common structure. In traditional designs, these pads are usually arranged in a straight, parallel line. Because the stripped and tinned lengths of the cables are uniform, the wire cores in the middle of the cable will be longer than those at the edges after soldering, leading to the following problems:

[0003] 1. Inconsistent wire core lengths affect the overall aesthetics;

[0004] 2. Excessively long intermediate wires are prone to stress concentration, which may lead to cable breakage or PCB pad detachment after long-term use;

[0005] 3. The cable routing is messy and does not conform to the design specifications of electronic equipment, increasing the difficulty of assembly and maintenance.

[0006] Therefore, a connection structure is needed that can ensure that the wire cores are of consistent length and have a regular layout after cable welding. Utility Model Content

[0007] The purpose of this invention is to provide a PCB pad arrangement structure that facilitates cable soldering, aiming to solve the problem in the prior art where the traditional parallel arrangement of pads leads to inconsistent cable lengths after soldering, affecting aesthetics and usability.

[0008] This utility model provides a PCB pad arrangement structure that facilitates cable soldering, comprising a PCB board, multiple pads, and cables; the multiple pads are spaced apart on the surface of the PCB board and arranged in an arc shape; the ends of the cables are provided with multiple exposed wire cores after stripping treatment, and the wire cores are soldered to the pads one by one, with each wire core having the same soldering length.

[0009] Furthermore, all of the wires are of the same length, and the free ends of the wires are at the same distance from the edge of the PCB board.

[0010] Furthermore, the arc shape is a circular arc structure, and the multiple pads are distributed sequentially along the arc length direction of the same circular arc.

[0011] Furthermore, the length direction of each of the pads is perpendicular to the tangent direction of the arc.

[0012] Furthermore, the pad has a rectangular structure, and the long side of the rectangle is perpendicular to the tangent direction of the arc.

[0013] Furthermore, the center of the arc is located on one side of the edge of the PCB board, and the plurality of pads are located on the side of the arc closer to the center of the PCB board.

[0014] Furthermore, the arc length spacing between two adjacent pads is equal.

[0015] Furthermore, the PCB is provided with positioning marks corresponding to the arc-shaped arrangement.

[0016] Furthermore, the outer layer of the cable is provided with an insulating sleeve, the end of which is aligned with the edge of the solder pad.

[0017] Furthermore, it also includes a protective layer that covers the welding area between the pad and the wire core.

[0018] Compared with the prior art, the PCB pad arrangement structure provided by this utility model, which facilitates cable soldering, solves the problem of excessively long middle cable cores when the pads are arranged in an arc shape. This ensures that the core lengths of all cables are consistent after soldering, avoids stress concentration caused by length differences, and improves the stability and service life of the connection structure. At the same time, it eliminates the visual abruptness of inconsistent cable lengths and improves the overall aesthetics. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the PCB pad arrangement structure for easy cable soldering provided by this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the PCB pad arrangement structure for easy cable soldering provided by this utility model. Figure 2 .

[0021] In the diagram: PCB board 10, pad 20, cable 30, wire core 40. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-2 The image shown is a preferred embodiment of the present invention.

[0026] The connection structure between the cable 30 and the pad 20 includes a PCB board 10, multiple pads 20 and the cable 30; the multiple pads 20 are spaced apart on the surface of the PCB board 10 and arranged in an arc shape; the end of the cable 30 is provided with multiple exposed wire cores 40 after stripping treatment, and the wire cores 40 are welded to the pads 20 one by one, and the welding length of each wire core 40 is the same.

[0027] The connection structure between the cable 30 and the pad 20 provided above solves the problem of excessively long core 40 of the middle cable 30 when the pads 20 are arranged in an arc shape. This ensures that the core 40 of all cables 30 has the same length after welding, avoiding stress concentration of the cable 30 due to length differences, and improving the stability and service life of the connection structure. At the same time, it eliminates the visual abruptness of uneven cable lengths and improves the overall aesthetics.

[0028] In this embodiment, the multiple wire cores 40 are of the same length, and the free end of the wire core 40 is at the same distance from the edge of the PCB board 10.

[0029] The uniform stripping length, in conjunction with the arc-shaped solder pad 20, ensures consistent soldering length of the wire core 40 from the source; the free end of the wire core 40 is consistent from the edge, avoiding the risk of collision or pulling caused by some cables 30 extending excessively out of the PCB board 10.

[0030] In this embodiment, the arc shape is a circular arc structure, and multiple pads 20 are distributed sequentially along the arc length direction of the same circular arc.

[0031] The arc-shaped layout of the arc structure has strong regularity, which facilitates the mass production of PCB board 10 (such as etching process) and reduces the production difficulty; at the same time, the continuity of the arc makes the cable 30 run more smoothly, reduces the bending angle of the wire core 40, and further reduces stress.

[0032] In this embodiment, the length direction of each pad 20 is perpendicular to the tangent direction of the arc.

[0033] The direction of pad 20 is perpendicular to the arc tangent, so that the cable 30 can extend naturally along the arc radial direction after welding, avoiding twisting or bending at the connection between the cable 30 and pad 20, and reducing the fatigue of the wire core 40; at the same time, the uniform cable 30 routing makes the overall layout more regular and conforms to the design specifications of electronic equipment.

[0034] In this embodiment, the pad 20 is a rectangular structure, and the direction of the long side of the rectangle is perpendicular to the tangent direction of the arc.

[0035] The long side of the rectangular pad 20 is perpendicular to the tangent, which can increase the welding area between the wire core 40 and the pad 20 and improve the stability of the electrical connection. At the same time, the rectangular structure facilitates the identification and positioning of automated welding equipment and improves assembly efficiency.

[0036] In this embodiment, the center of the arc is located on one side of the edge of the PCB board 10, and the multiple pads 20 are located on the side of the arc close to the center of the PCB board 10.

[0037] The center of the circle is biased towards the edge of the PCB board 10, so that when the cable 30 is connected from the edge of the PCB board 10, the wire core 40 runs more directly, reducing the space occupied by the cable 30 on the PCB board 10; at the same time, it avoids the cable 30 from crossing other components of the PCB board 10, reducing the risk of interference.

[0038] In this embodiment, the arc length spacing between two adjacent pads 20 is equal.

[0039] The equal arc length spacing makes the layout of the pads 20 symmetrical, which facilitates the batch pre-processing of cables 30 (such as uniform stripping length) and reduces assembly errors; at the same time, the symmetrical structure enhances the visual aesthetics.

[0040] In this embodiment, the PCB is provided with positioning marks corresponding to the arc-shaped arrangement.

[0041] The positioning marks facilitate the quick and accurate determination of the welding position of the wire core 40 during the welding process, improving welding efficiency and reducing the problem of inconsistent wire length caused by positioning deviation.

[0042] In this embodiment, the outer layer of the cable 30 is provided with an insulating sleeve, and the end of the insulating sleeve is aligned with the edge of the pad 20.

[0043] Aligning the insulating sleeve with the edge of the solder pad 20 avoids the risk of short circuits caused by the insulation layer of the cable 30 extending too far into the soldering area, while also preventing the exposed portion of the wire core 40 from being too long; in addition, the neat end of the insulating sleeve further enhances the overall aesthetics.

[0044] In this embodiment, a protective layer is also included, which covers the welding area between the pad 20 and the wire core 40.

[0045] Protective layers (such as insulating varnish or heat shrink tubing) can isolate the welded area from air and moisture, preventing oxidation and corrosion; at the same time, they enhance the mechanical strength of the welded area and resist detachment caused by vibration or impact.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PCB pad arrangement structure that facilitates cable soldering, characterized in that, It includes a PCB board, multiple solder pads, and cables; the multiple solder pads are spaced apart on the surface of the PCB board and arranged in an arc shape; the ends of the cables are provided with multiple exposed wire cores after stripping, and the wire cores are welded to the solder pads one by one, and the welding length of each wire core is the same.

2. The PCB pad arrangement structure for easy cable soldering as described in claim 1, characterized in that, The multiple wires are of the same length, and the free ends of the wires are at the same distance from the edge of the PCB board.

3. The PCB pad arrangement structure for easy cable soldering as described in claim 2, characterized in that, The arc shape is a circular arc structure, and multiple pads are distributed sequentially along the arc length direction of the same circular arc.

4. The PCB pad arrangement structure for easy cable soldering as described in claim 3, characterized in that, The length direction of each of the pads is perpendicular to the tangent direction of the arc.

5. The PCB pad arrangement structure for easy cable soldering as described in claim 4, characterized in that, The pad is rectangular, and the direction of the long side of the rectangle is perpendicular to the tangent direction of the arc.

6. The PCB pad arrangement structure for easy cable soldering as described in claim 3, characterized in that, The center of the arc is located on one side of the edge of the PCB board, and the plurality of pads are located on the side of the arc closer to the center of the PCB board.

7. The PCB pad arrangement structure for facilitating cable soldering as described in any one of claims 1 to 6, characterized in that, The arc length spacing between two adjacent pads is equal.

8. The PCB pad arrangement structure for easy cable soldering as described in claim 7, characterized in that, The PCB has positioning marks that correspond to the arc-shaped arrangement.

9. The PCB pad arrangement structure for facilitating cable soldering as described in any one of claims 1 to 6, characterized in that, The cable is provided with an insulating sleeve on its outer layer, and the end of the insulating sleeve is aligned with the edge of the solder pad.

10. The PCB pad arrangement structure for facilitating cable soldering as described in any one of claims 1 to 6, characterized in that, It also includes a protective layer that covers the welding area between the pad and the wire core.

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