An improved circuit board structure

Abstract

The utility model discloses an improved circuit board structure, including a circuit board, the circuit board is provided with plurality of soldering pads according to rectangle, wherein, along the soldering pad of one diagonal line two ends of the rectangle is set to first corner soldering pad, along the soldering pad of another diagonal line two ends of the rectangle is set to second corner soldering pad, along the soldering pad of the long side interval of the rectangle is set to interval soldering pad, first corner soldering pad with second corner soldering pad all are long waist hole shape soldering pad, interval soldering pad all are round hole shape soldering pad, first corner soldering pad is along x direction setting, second corner soldering pad is along y direction's setting, x direction with y direction perpendicular setting. The utility model has the beneficial effects that: the installation effect between soldering pad and pin plug is the requirement of considering installation fast and positioning accurate simultaneously.

Description

Technical Field

[0001] The utility model relates to the field of electricity, especially to a circuit board, specifically an improved circuit board structure. Background Art

[0002] In modern electronic devices, circuit boards are commonly used components. In the prior art, pads on the circuit board are used for plug-in connection with the pins of components. When there are many pin plugs in the components, the installation difficulty of the components will increase significantly. Specifically, when the pad size is small, although the positioning accuracy of the components after installation can be improved, due to the generally varying degrees of deformation of the pin plugs on the components, it will make the insertion of the components difficult; when the pad size is large, there will be a certain deviation after the components are installed. For components installed in batches, the consistency of their installation positions is poor, that is, the positioning of the component installation is inaccurate. Content of the Utility Model

[0003] The purpose of the utility model is to provide an improved circuit board structure. This improved circuit board structure aims to solve the technical problem that the pads on the circuit board in the prior art cannot兼顾 the quick installation and accurate positioning of components.

[0004] [[ID=]16]To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An improved circuit board structure includes a circuit board, and a plurality of pads are arranged on the circuit board in a rectangle.

[0006] Among them, the pads at both ends of one diagonal of the rectangle are set as the first corner pads, the pads at both ends of the other diagonal of the rectangle are set as the second corner pads, and any pad distributed at intervals along the long side of the rectangle is set as an intermediate pad.

[0007] Both the first corner pads and the second corner pads are long waist hole-shaped pads, and the intermediate pads are all round hole-shaped pads. The first corner pads are arranged along the x direction, the second corner pads are arranged along the y direction, and the x direction and the y direction are perpendicular to each other. The sizes of the long waist hole shapes of the first corner pads and the second corner pads are the same, and the sizes of the long waist hole shape and the round hole shape satisfy the following formula: R1 < R2 < R1 + L, where R1 is the aperture of the semi-circle in the long waist hole-shaped pad, L is the distance between the centers of the two semi-circles in the long waist hole-shaped pad, and R2 is the aperture of the round hole-shaped pad, and the unit of the above parameters is mm.

[0008] Further, the x direction is parallel to the length direction of the rectangle, or parallel to the width direction of the rectangle, or forms an acute angle with the length direction of the rectangle.

[0009] Furthermore, at least one row of pads is provided between the two long sides of the rectangle. Each row of pads consists of a plurality of circular pads arranged at intervals, with their arrangement direction parallel to the length direction of the rectangle. The diameter of any one of the circular pads is R2. The center of any one circular pad is aligned with the center of its adjacent first corner pad, second corner pad, or intermediate pad in the length direction of the rectangle.

[0010] Working principle:

[0011] This invention relates to an improved pad structure for circuit boards. It involves selecting two diagonally opposite pads from a rectangular array on the circuit board and extending them into elongated shapes along the x-direction, and two diagonally opposite pads along the y-direction. Simultaneously, the dimensions of the remaining pads are slightly enlarged in both the x and y directions. This allows for a slight expansion and extension of the mounting positions of the corresponding pins in both directions, while also providing a limiting function to prevent excessive expansion and ensure accurate component mounting.

[0012] Compared with the prior art, the beneficial effect of this utility model is that the installation effect between the pad and the pin plug-in simultaneously meets the requirements of quick installation and accurate positioning. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an embodiment 1 of an improved circuit board structure of this utility model.

[0014] Figure 2 This is a schematic diagram of Embodiment 2 of an improved circuit board structure of this utility model.

[0015] Figure 3 This is a schematic diagram of embodiment 3 of an improved circuit board structure of this utility model.

[0016] Figure 4 This is a schematic diagram of embodiment 4 of an improved circuit board structure of this utility model.

[0017] Figure 5 This is a schematic diagram of an improved circuit board structure of the present invention, showing an elongated hole and a round hole. Detailed Implementation

[0018] Example 1

[0019] Please see Figure 1 This utility model provides a technical solution:

[0020] An improved circuit board structure includes a circuit board 1 on which a plurality of pads are arranged in a rectangular pattern.

[0021] Among them, the pads at both ends of one diagonal of the rectangle are set as the first corner pads 2, the pads at both ends of the other diagonal of the rectangle are set as the second corner pads 3, and any one of the pads distributed at intervals along the long side of the rectangle is set as the intermediate pad 4;

[0022] Both the first corner pads 2 and the second corner pads 3 are long waist-shaped hole pads, and the intermediate pads 4 are all round hole pads. The first corner pads 2 are arranged along the x direction, and the second corner pads 3 are arranged along the y direction. The x direction and the y direction are perpendicular to each other; the dimensions of the long waist shapes of the first corner pads 2 and the second corner pads 3 are the same, and the dimensions of the long waist shape and the round hole shape satisfy the following formula: R1 < R2 < R1 + L, where R1 is the aperture of the semicircle in the long waist-shaped hole pad, L is the distance between the centers of the two semicircles in the long waist-shaped hole pad, and R2 is the aperture of the round hole pad. The unit of the above parameters is mm.

[0023] Specifically, the markings of the long waist-shaped holes and the round holes are as Figure 5 shown.

[0024] In this embodiment, the x direction is the same as the length direction of the rectangle.

[0025] Embodiment 2

[0026] Please refer to Figure 2 , in this embodiment, the difference from Embodiment 1 is that the x direction is the same as the width direction of the rectangle.

[0027] Embodiment 3

[0028] Please refer to Figure 3 , in this embodiment, the difference from Embodiment 1 is that the x direction forms a 45° angle with the length direction of the rectangle.

[0029] Embodiment 4

[0030] Please refer to Figure 4 , in this embodiment, the difference from Embodiment 1 is that there is at least one row of pads arranged between the two long sides of the rectangle. Any row of the pads is composed of a plurality of round hole pads arranged at intervals, and the arrangement direction is parallel to the length direction of the rectangle. The aperture of any round hole pad is R2, and the center of any round hole pad is aligned with the center of the first corner pad 2, or the second corner pad 3, or the intermediate pad 4 adjacent to it above and below in the length direction of the rectangle.

[0031] Working process:

[0032] Insert the pin plugs on the components into the pads on the circuit board correspondingly, and then perform welding.

Claims

1. An improved circuit board structure, comprising a circuit board, characterized in that: The circuit board (1) has a plurality of pads arranged in a rectangular shape; Among them, the pads at both ends of one diagonal of the rectangle are designated as first corner pads (2), the pads at both ends of the other diagonal of the rectangle are designated as second corner pads (3), and any other pads distributed at intervals along the long side of the rectangle are designated as inter-pads (4). The first corner pad (2) and the second corner pad (3) are both elongated hole-shaped pads, and the intermediate pads (4) are all round hole-shaped pads. The first corner pad (2) is set along the x direction, and the second corner pad (3) is set along the y direction. The x direction and the y direction are perpendicular to each other. The first corner pad (2) and the second corner pad (3) have the same elongated hole size. The dimensions of the elongated hole and the circular hole satisfy the following formula: R1 <R2<R1+L; Where R1 is the diameter of the semicircle in the oblong hole pad, L is the distance between the centers of the two semicircles in the oblong hole pad, and R2 is the diameter of the circular hole pad. The units of the above parameters are mm.

2. The improved circuit board structure according to claim 1, characterized in that: The x-direction is parallel to the length direction of the rectangle, or parallel to the width direction of the rectangle, or forms an angle with the length direction of the rectangle, wherein the angle is an acute angle.

3. The improved circuit board structure according to claim 1, characterized in that: At least one row of pads is provided between the two long sides of the rectangle. Each row of pads is composed of a plurality of circular pads arranged at intervals, and their arrangement direction is parallel to the length direction of the rectangle. The diameter of any circular pad is R2. The center of any circular pad is aligned with the center of the first corner pad (2), the second corner pad (3), or the intermediate pad (4) above and below it in the length direction of the rectangle.

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