Printed circuit board structure and circuit board

Abstract

The utility model provides a printed circuit board structure and a circuit board. The printed circuit board structure comprises a substrate main body, a broken edge and a positioning point. The broken edge is arranged on at least one side edge of the substrate main body and is connected with the substrate main body; the positioning points are arranged on the surface of the broken edge and used for positioning the printed circuit board; and the positioning points are cross-shaped or triangular. The shape of the optical point is set to be a cross shape or a triangle shape which is easier to recognize, the diameter of the positioning point can be reduced, and therefore the width of the broken edge is reduced, and material waste is reduced.

Description

Technical Field

[0001] This application relates to the field of circuit boards, and more particularly to a printed circuit board structure and circuit board. Background Technology

[0002] In PCB (Printed Circuit Board) manufacturing, a clearance distance is typically required around the edges of the PCB to allow for equipment operation. For example, components are prohibited from being placed within 4mm of the PCB edge. In addition, positioning points are set along the edges of the PCB to ensure accurate identification and positioning during processing. The structure of these positioning points also increases the clearance distance. However, excessive clearance can lead to material waste and increased manufacturing costs. Utility Model Content

[0003] To address the problems in the prior art, this application provides a printed circuit board structure and circuit board that reduces the width of the broken edge.

[0004] This application provides a printed circuit board structure, the printed circuit board structure comprising:

[0005] substrate body;

[0006] A broken edge is provided on at least one side of the substrate body and is connected to the substrate body;

[0007] The positioning point is located on the surface of the broken edge and is used to position the printed circuit board; the positioning point is cross-shaped or triangular.

[0008] In one embodiment, the width of the broken edge is 3-5 mm.

[0009] In one embodiment, the length of the positioning point along the width direction of the broken edge is 1~3mm.

[0010] In one embodiment, the number of positioning points is multiple, and the multiple positioning points include cross-shaped positioning points and / or triangle-shaped positioning points.

[0011] In one embodiment, the plurality of positioning points further includes circular positioning points.

[0012] In one embodiment, the broken edge is further provided with a positioning hole, the positioning hole penetrating the broken edge; the positioning hole is used to fix the printed circuit board.

[0013] In one embodiment, the diameter of the positioning hole is 1~3mm.

[0014] In one embodiment, a cutting segment is provided at the connection between the broken edge and the substrate body; the cutting segment has a preset depth, which is less than or equal to two-thirds of the thickness of the printed circuit board.

[0015] In one embodiment, a plurality of break holes are provided at the connection between the broken edge and the substrate body; the plurality of break holes are spaced apart and arranged along the length direction of the broken edge.

[0016] This application also proposes a circuit board including the printed circuit board structure described above.

[0017] This application reduces the diameter of the positioning point by setting its shape to a more easily recognizable cross or triangle, thereby reducing the width of the broken edge and minimizing material waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of the printed circuit board structure of this application.

[0019] Figure 2 This is a structural schematic diagram of one embodiment of the positioning point in this application.

[0020] Figure 3 This is a structural schematic diagram of another embodiment of the positioning point in this application.

[0021] Figure 4 This is a structural diagram of another embodiment of the positioning point in this application.

[0022] Figure 5 This is a schematic diagram of another embodiment of the printed circuit board structure of this application.

[0023] Figure 6 This is a schematic diagram of the structure of one embodiment of the cutting segment of this application.

[0024] Figure 7 This is a schematic diagram of the structure of one embodiment of the break hole in this application.

[0025] Explanation of key component symbols: Printed circuit board structure - 100; Substrate body - 110; Broken edge - 120; Positioning point - 130; Positioning hole - 140; Cutting segment - 150; Broken hole - 160.

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0027] The following description will refer to the accompanying drawings to provide a more complete picture of the present application. The drawings illustrate exemplary embodiments of the present application. However, the present application may be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components.

[0028] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the application. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.

[0029] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary should be interpreted as having the same meaning as they have in the relevant art and in the content of this application, and will not be interpreted as having an idealized or overly formal meaning.

[0030] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments. It should be noted that components depicted in the drawings are not necessarily shown to scale; and identical or similar components will be designated with the same or similar reference numerals or similar technical terms.

[0031] PCBs can be cut to a certain size and have conductive circuit patterns, electronic components, mounting holes, component holes, screw holes, optical positioning points, silkscreen, etc. arranged on them to achieve interconnection between electronic devices.

[0032] In actual production, electronic components such as capacitors, resistors, and connectors are assembled onto bare PCBs using surface mount technology (SMT) equipment, forming semi-finished electronic assemblies. Depending on production requirements, SMT equipment needs to leave blank gaps along the edges of the PCB during assembly to facilitate subsequent equipment operations. Therefore, PCBs are typically designed with folded edges to meet production requirements.

[0033] For example, the width of the broken edge of a current PCB is usually set to 8mm, and there are also positioning points with a diameter of 3mm on the broken edge. In order to ensure accurate positioning of the positioning points, the diameter of the positioning points needs to be large enough, which leads to a corresponding increase in the width of the broken edge.

[0034] To solve the above problems, refer to Figures 1-4This application discloses a printed circuit board structure 100, which includes a substrate body 110, a broken edge 120, and positioning points 130. The broken edge 120 is located on at least one side of the substrate body 110 and connected to the substrate body 110. The positioning points 130 are located on the surface of the broken edge 120 and are used to position the printed circuit board so that it can be accurately identified and positioned during the printed circuit board manufacturing process. The positioning points 130 are cross-shaped or triangular. The positioning points 130 can be optical positioning points, solder paste positioning points, etc.

[0035] In this embodiment, the substrate body 110 is used for mounting electronic components, fixing holes, component holes, screw holes, etc. The broken edge 120 is used to assist in PCB conveying and positioning during the installation process of the substrate body 110, and is broken off and discarded after installation. The broken edge 120 can be set on the side of the substrate body 110 according to the direction in which the PCB is conveyed, so as to facilitate the conveying of the PCB during the production process. Broken edges 120 can also be provided on opposite sides of the substrate body 110.

[0036] The number of positioning points 130 can be set to one or more. The shape of multiple positioning points 130 can all be set to cross or triangle, or partially set to cross or triangle. In this way, the cross or triangle positioning points 130 are easier to be recognized by the alignment device, and the width can be further reduced, thereby reducing the size of the broken edge 120.

[0037] For example, when the positioning point 130 is cross-shaped, the radius of the positioning point 130 can be set to 0.9 mm, that is, the diameter is 1.8 mm. In this way, the distance between the edge of the broken edge 120 and the positioning point 130 can be further reduced, so that the width of the broken edge 120 can be reduced by at least 1.2 mm.

[0038] Reference Figure 5 In one embodiment, the broken edge 120 further includes a connecting region. The broken edge 120 and the substrate body 110 are connected through the connecting region, and the positioning point 130 may also be disposed on the connecting region.

[0039] After PCB assembly, the connection area also serves as a cutting area for cutting equipment. The width of the connection area can be set according to actual needs. For example, the radius of positioning point 130 can be set to 0.9mm, the width of the broken edge 120 can be set to 5mm, and the width of the connection area can be set to 2mm. Thus, the distance from positioning point 130 to the edge of the motherboard can be greater than or equal to 5mm. Alternatively, the width of the connection area can be set to other values ​​of 1-2mm according to actual needs, without limitation.

[0040] By setting the shape of the positioning point 130 to a more easily recognizable cross or triangle, this application can reduce the diameter of the positioning point 130, thereby reducing the width of the broken edge 120 and reducing material waste.

[0041] In one embodiment, the width of the broken edge 120 can be set to 3~5mm.

[0042] In one embodiment, the length of the positioning point 130 along the width direction of the broken edge 120 is 1~3mm.

[0043] In one embodiment, the number of positioning points 130 is one or more. The number and shape of the positioning points 130 can be set according to actual needs. For example, multiple positioning points 130 can all be set to be cross-shaped or triangular. Multiple positioning points 130 can also be set to have some cross-shaped and others triangular.

[0044] In one embodiment, reference is made to Figure 2 and Figure 3 When there are multiple positioning points 130, the multiple positioning points 130 include cross-shaped positioning points 130 and / or triangular positioning points 130; the multiple positioning points 130 include cross-shaped positioning points 130 and / or triangular positioning points 130.

[0045] In addition, refer to Figure 4 The plurality of positioning points 130 may also include circular positioning points 130.

[0046] In one embodiment, the broken edge 120 is further provided with a positioning hole 140. The positioning hole 140 penetrates the broken edge 120. The positioning hole 140 is used to fix the printed circuit board, so as to facilitate the positioning and fixation of the PCB during the production process. The shape of the positioning hole 140 can be set as circular, square, triangular, etc.

[0047] In one embodiment, the diameter of the positioning hole 140 can be set to 1~3mm according to actual needs.

[0048] Reference Figure 6 In one embodiment, a cutting segment 150 is provided at the connection between the broken edge 120 and the substrate body 110. The cutting segment 150 has a preset depth, which is less than or equal to two-thirds of the thickness of the printed circuit board. This ensures that the broken edge 120 remains connected to the substrate body 110 and is not easily broken.

[0049] Furthermore, the preset depth is greater than one-third of the thickness of the printed circuit board. This allows the cutting device to cut the broken edge 120 along the cutting segment 150 in one operation. The cutting segment 150 can also be set to a "V" shape according to the width of the cutting device's blade for precise cutting.

[0050] Reference Figure 7 In one embodiment, a plurality of break holes 160 are provided at the connection between the broken edge 120 and the substrate body 110; the plurality of break holes 160 are spaced apart and arranged along the length direction of the broken edge 120. Due to the design of the plurality of break holes 160, the material can be manually broken along the break holes 160 when no cutting equipment is available. The break holes 160 can be located in the connection area. The diameter of each break hole 160 and the number of break holes 160 can be set according to requirements; for example, the diameter of the break holes 160 at both ends can be set to 0.8 mm, and the diameter of the break holes 160 in the middle can be set to 0.4 mm.

[0051] This application also proposes a circuit board including the printed circuit board structure 100 described above.

[0052] The detailed structure of the printed circuit board structure 100 can be referred to the above embodiments, and will not be repeated here. It is understood that since the printed circuit board structure 100 is used in the circuit board of this application, the embodiments of the circuit board of this application include all the technical solutions of all embodiments of the printed circuit board structure 100, and the technical effects achieved are exactly the same, and will not be repeated here.

[0053] The specific embodiments of this application have been described above with reference to the accompanying drawings. However, those skilled in the art will understand that various changes and substitutions can be made to the specific embodiments of this application without departing from the spirit and scope of this application. All such changes and substitutions fall within the scope defined by this application.

Claims

1. A printed circuit board structure, characterized by The printed circuit board structure comprises: a substrate body; a breakable edge, which is arranged on at least one side of the substrate body and connected with the substrate body; a positioning point, which is arranged on the surface of the breakable edge and used for positioning the printed circuit board; the positioning point is in a cross shape or a triangle shape.

2. The printed circuit board structure of claim 1, wherein, The width of the breakable edge is 3-5 mm.

3. The printed circuit board structure of claim 2, wherein, The length of the positioning point along the width direction of the breakable edge is 1-3 mm.

4. The printed circuit board structure of claim 1, wherein, The number of the positioning points is multiple, and the multiple positioning points include cross-shaped positioning points and / or triangular positioning points.

5. The printed circuit board structure of claim 4, wherein, The multiple positioning points further include circular positioning points.

6. The printed circuit board structure of claim 1, wherein, The breakable edge is further provided with a positioning hole, which penetrates the breakable edge; the positioning hole is used for fixing the printed circuit board.

7. The printed circuit board structure of claim 6, wherein, The diameter of the positioning hole is 1-3 mm.

8. The printed circuit board structure of claim 1, wherein, The connection part of the breakable edge and the substrate body is provided with a cutting section; the cutting section has a preset depth, which is less than or equal to two-thirds of the thickness of the printed circuit board.

9. The printed circuit board structure of claim 1, wherein, The connection part of the breakable edge and the substrate body is provided with multiple breakable holes; the multiple breakable holes are arranged at intervals and arranged along the length direction of the breakable edge.

10. A circuit board, characterized by The printed circuit board structure comprises: a substrate body; a breakable edge, which is arranged on at least one side of the substrate body and connected with the substrate body; a positioning point, which is arranged on the surface of the breakable edge and used for positioning the printed circuit board; the positioning point is in a cross shape or a triangle shape. The width of the breakable edge is 3-5 mm. The length of the positioning point along the width direction of the breakable edge is 1-3 mm. The number of the positioning points is multiple, and the multiple positioning points include cross-shaped positioning points and / or triangular positioning points. The multiple positioning points further include circular positioning points. The breakable edge is further provided with a positioning hole, which penetrates the breakable edge; the positioning hole is used for fixing the printed circuit board. The diameter of the positioning hole is 1-3 mm. The connection part of the breakable edge and the substrate body is provided with a cutting section; the cutting section has a preset depth, which is less than or equal to two-thirds of the thickness of the printed circuit board. The connection part of the breakable edge and the substrate body is provided with multiple breakable holes; the multiple breakable holes are arranged at intervals and arranged along the length direction of the breakable edge.

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