Printed circuit board (PCB) capable of accurately separating stamp holes

Abstract

The utility model discloses a printed circuit board (PCB) capable of accurately separating stamp holes, which relates to the technical field of PCBs, and comprises a PCB body, a plurality of columns of PCB sub-boards distributed at equal intervals are arranged on the PCB body, the PCB sub-boards are designed to be circular, connecting rib plates distributed annularly at equal intervals are arranged between the outer walls of the PCB sub-boards and the PCB body, and the connecting rib plates are arranged on the outer walls of the PCB sub-boards. First stamp holes distributed at equal intervals are formed in the side, close to the top of the PCB body, of the connecting rib plate in a penetrating mode, and a first breaking groove and a third breaking groove are formed in the side, close to the top of the PCB body, of the connecting rib plate and the side, close to the bottom of the PCB body, of the connecting rib plate respectively. According to the utility model, when the circular PCB split board is split, the rib connecting board and the PCB split board are integrally and easily detached from the PCB body, and the rib connecting board is broken and detached from the PCB split board along the second breaking groove and the second stamp hole, so that the whole PCB split operation is more complete, the broken surface of the second stamp hole is ensured to be flush, and the quality of the PCB split board is improved. Therefore, the stamp hole can be accurately separated from the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB, in particular to a PCB board with accurate separation of postage stamp holes. Background Technique

[0002] PCB is the abbreviation of printed circuit board, which is a basic component used to support and connect electronic components. As an essential part of modern electronic devices, the PCB provides a method to fix electronic components on a mechanical carrier and connect them through wires. Through the PCB, reliable electrical connections can be achieved between electronic components, enabling the device to operate normally.

[0003] Currently, for PCB board splitting design, a V-cut board splitter or a cutting and forming machine is usually used. In addition to these two designs, there is also a design method of postage stamp holes, in which small holes are punched at the splitting position to facilitate splitting with tools such as pliers, or directly breaking the connecting ribs between the small holes by hand to achieve the purpose of splitting the board. After retrieval, the patent with the publication number CN206237664U discloses a PCB board with postage stamp holes, including a PCB board body, a side board arranged at the edge of the PCB board body, postage stamp holes arranged at the connection between the PCB board body and the side board, a strip-shaped groove arranged on the connection line between the PCB board body and the side board, the postage stamp holes are arranged equidistantly in the strip-shaped groove, and two triangular through grooves are arranged on the edge of the postage stamp holes and the two triangular through grooves are arranged at both ends of the diameter of the postage stamp holes, and the triangular through grooves are arranged in the strip-shaped groove.

[0004] Combined with the above patent, it is found that the existing technology has the following deficiencies: for some irregular PCB board splitting, such as circular PCB board splitting, it is impossible to complete the splitting operation with a V-cut board splitter. At this time, postage stamp holes need to be used for splitting. However, when the existing technology splits a circular PCB board with postage stamp holes, the fracture surface of the postage stamp holes is difficult to control, so that the fracture surface is not necessarily flat, and it cannot ensure the accurate separation of the postage stamp holes. Therefore, it is urgent to adopt a PCB board with accurate separation of postage stamp holes to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a PCB board with accurate separation of postage stamp holes is proposed. Its advantages are that the splitting operation of the entire PCB board is more complete, the fracture surface of the second postage stamp hole is ensured to be flat, and the postage stamp holes can be accurately separated from the PCB board.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A PCB board with accurate separation of perforations, including the PCB board body, on which multiple columns of PCB sub-boards are arranged at equal distances, and the PCB sub-boards are designed as circular. Between the outer wall of the PCB sub-board and the PCB board body, there are connecting rib plates arranged in an annular shape at equal distances. And on the top side of the connecting rib plate close to the PCB board body, there are equally distributed first perforations. On the top side and bottom side of the connecting rib plate close to the PCB board body, there are respectively a first breaking groove and a third breaking groove. On the top side of the connecting rib plate close to the PCB sub-board, there are equally distributed second perforations arranged in an annular shape, and on the top side of the connecting rib plate close to the PCB sub-board, there is a second breaking groove.

[0008] Through the above technical solutions: It is possible to break and remove the connecting rib plate from the PCB sub-board along the second breaking groove and the second perforations, making the splitting operation of the entire PCB board more complete, ensuring the flatness of the fracture surface of the second perforations, and enabling the perforations to be accurately separated from the PCB board.

[0009] The present utility model is further configured such that on the PCB board body, there are multiple columns of cavities for placing the PCB sub-boards, and the connecting rib plates are distributed at equal distances within the cavities.

[0010] Through the above technical solutions: It separates the PCB board body and the PCB sub-boards, facilitating the subsequent fracture and splitting operations.

[0011] The present utility model is further configured such that the top views of the first breaking groove, the second breaking groove, and the third breaking groove are all designed as arcs, and the first perforations penetrate through the middle positions of the first breaking groove and the third breaking groove.

[0012] Through the above technical solutions: It enables the connecting rib plate to be fully broken along the breaking grooves.

[0013] The present utility model is further configured such that the cross-sections of the first breaking groove and the third breaking groove are both designed as V-shaped, and the depths of the first breaking groove and the third breaking groove are both less than half of the thickness of the connecting rib plate.

[0014] Through the above technical solutions: It reduces the thickness of the self-breaking part of the connecting rib plate, making the self-breaking process of the connecting rib plate fast and convenient.

[0015] The present utility model is further configured such that both the second perforations and the second breaking groove are tangent to the PCB sub-board.

[0016] The present utility model is further configured such that the side of the second breaking groove close to the connecting rib plate is designed to be inclined, and the thickness of the second breaking groove is greater than half of the thickness of the connecting rib plate.

[0017] Through the above technical solutions, it is possible to make the fracture of the PCB board flush, avoiding the problem of excessive burrs.

[0018] The present utility model is further configured such that the aperture of the first perforation and the aperture of the second perforation are 0.8 - 1 mm, and the distance between adjacent two first perforations and the distance between adjacent two second perforations are 1.2 - 1.8 mm.

[0019] Through the above technical solutions, the fracture speed of the first perforation and the second perforation is made faster.

[0020] The present utility model is further configured such that the distance between the first perforation and the second perforation is 0.4 cm - 0.8 cm.

[0021] Through the above technical solutions, there is a certain distance between the first perforation and the second perforation, facilitating the hand-held fracture operation.

[0022] The present utility model is further configured such that both ends of the connecting rib plate are designed in a semi-circular concave shape.

[0023] Through the above technical solutions, the length of the connecting rib plate is reduced, making the self-fracture process of the connecting rib plate faster and more convenient.

[0024] The beneficial effects of the present utility model are as follows:

[0025] In the present utility model, through the cooperation of the PCB board body, cavity, PCB board splitting, connecting rib plate, first perforation, first breaking groove and second breaking groove, during the splitting operation of the circular PCB board splitting, under the action of the first breaking groove and the second breaking groove, the thickness of the connecting rib plate can be reduced, making it easy to remove the connecting rib plate and the PCB board splitting as a whole from the PCB board body, and the separation operation is more convenient.

[0026] In the present utility model, through the setting of the connecting rib plate, second perforation and second breaking groove, the connecting rib plate can be broken and removed from the PCB board splitting along the second breaking groove and the second perforation, making the splitting operation of the entire PCB board more complete, and enabling the fracture to be distributed along the second breaking groove, ensuring the flatness of the fracture surface of the second perforation, enabling the perforation to be accurately separated from the PCB board, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a PCB board with accurate separation of perforations proposed by the present utility model;

[0028] Figure 2 For Figure 1 The enlarged structural schematic diagram at position A in

[0029] Figure 3 Top view of the overall part of a PCB board with accurate separation of postage stamp holes proposed by the present utility model;

[0030] Figure 4 Cross-sectional view of the connecting rib board of a PCB board with accurate separation of postage stamp holes proposed by the present utility model;

[0031] Figure 5 Schematic three-dimensional structure diagram of the connecting rib board of a PCB board with accurate separation of postage stamp holes proposed by the present utility model

[0032] In the figure: 1, PCB board body; 2, cavity; 3, PCB board sub-board; 4, connecting rib board; 5, first postage stamp hole; 6, first breaking groove; 7, second postage stamp hole; 8, second breaking groove; 9, third breaking groove. Specific embodiments

[0033] The technical solutions of this patent will be further described in detail below in conjunction with specific embodiments.

[0034] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0035] In the description of this patent, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0036] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances. Embodiment 1

[0037] Refer to Figures 1 - 5, A PCB board with accurate separation of perforations, including a PCB board body 1. There are multiple columns of PCB board sub-boards 3 evenly distributed on the PCB board body 1, and the PCB board sub-boards 3 are designed to be circular. There are connecting rib plates 4 evenly distributed in a circular shape at equal distances between the outer wall of the PCB board sub-board 3 and the PCB board body 1. And on the side of the connecting rib plate 4 close to the top of the PCB board body 1, there are evenly distributed first perforations 5 penetrating through. There are multiple columns of cavities 2 for placing the PCB board sub-boards 3 on the PCB board body 1, and the connecting rib plates 4 are evenly distributed in the cavities 2. On the side of the connecting rib plate 4 close to the top and bottom of the PCB board body 1, there are respectively a first breaking groove 6 and a third breaking groove 9. On the side of the connecting rib plate 4 close to the top of the PCB board sub-board 3, there are evenly distributed second perforations 7 penetrating through in a circular shape, and on the side of the connecting rib plate 4 close to the top of the PCB board sub-board 3, there is a second breaking groove 8. The top views of the first breaking groove 6, the second breaking groove 8, and the third breaking groove 9 are all designed to be arc-shaped, and the first perforations 5 penetrate through the middle positions of the first breaking groove 6 and the third breaking groove 9. The aperture of the first perforations 5 and the aperture of the second perforations 7 are 0.8 - 1 mm, and the distance between adjacent two first perforations 5 and the distance between adjacent two second perforations 7 are 1.2 - 1.8 mm. The distance between the first perforations 5 and the second perforations 7 is 0.4 cm - 0.8 cm. It can reduce the thickness of the connecting rib plate 4 under the action of the first breaking groove 6 and the second breaking groove 8, making the connecting rib plate 4 and the PCB board sub-board 3 as a whole easy to be removed from the PCB board body 1, making the separation operation more convenient, and can break and remove the connecting rib plate 4 from the PCB board sub-board 3 along the second breaking groove 8 and the second perforations 7, making the sub-boarding operation of the entire PCB board more complete, ensuring the flatness of the fracture surface of the second perforations 7, and enabling the perforations to be accurately separated from the PCB board.

[0038] In order to accelerate the fracture speed of the connecting rib plate 4 itself, referring to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 , the cross-section of the first breaking groove 6 and the cross-section of the third breaking groove 9 are both designed to be V-shaped, and the depth of the first breaking groove 6 and the depth of the third breaking groove 9 are both less than half of the thickness of the connecting rib plate 4, reducing the thickness of the fracture part of the connecting rib plate 4 itself and making the fracture process of the connecting rib plate 4 itself fast and convenient.

[0039] In order to ensure the flatness of the fracture surface of the second perforations 7, referring to Figure 2 、 Figure 3 and Figure 4, both the second stamp hole 7 and the second breaking groove 8 are tangent to the PCB board sub-board 3. The side of the second breaking groove 8 close to the connecting rib plate 4 is designed to be inclined, and the thickness of the second breaking groove 8 is greater than half of the thickness of the connecting rib plate 4, which can make the fracture of the PCB board sub-board 3 flush and avoid the problem of excessive burrs. Embodiment 2

[0040] Refer to Figure 1 、 Figure 2 and Figure 3 , compared with Embodiment 1, both ends of the connecting rib plate 4 are designed to be semi-circular depressions, reducing the length of the connecting rib plate 4 and making the self-breaking process of the connecting rib plate 4 faster and more convenient.

[0041] Working principle: When performing the sub-board operation of the PCB board sub-board 3, the user can reduce the thickness of the connecting rib plate 4 under the action of the first breaking groove 6 and the second breaking groove 8, so that the connecting rib plate 4 and the PCB board sub-board 3 as a whole can be removed from the PCB board body 1 along the first breaking groove 6, the second breaking groove 8 and the first stamp hole 5, facilitating the separation operation. Then, the user breaks and removes the connecting rib plate 4 from the PCB board sub-board 3 along the second breaking groove 8 and the second stamp hole 7, making the sub-board operation of the entire PCB board more complete, and enabling the fracture to be distributed along the second breaking groove 8, ensuring the flatness of the fracture surface of the second stamp hole 7, so that the stamp hole can be accurately separated from the PCB board.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A PCB board with accurately separated stamp holes, comprising a PCB board body (1), characterized in that: The PCB board body (1) is provided with a plurality of rows of PCB board sub-plates (3) distributed at equal distances, and the PCB board sub-plates (3) are designed to be circular, and connecting rib plates (4) distributed at equal distances in an annular manner are provided between the outer wall of the PCB board sub-plates (3) and the PCB board body (1), and the connecting rib plate (4) is provided with first stamp holes (5) distributed at equal distances on the top side close to the PCB board body (1), and the connecting rib plate (4) is provided with first breaking grooves (6) and third breaking grooves (9) on the top side and bottom side close to the PCB board body (1), respectively, and the connecting rib plate (4) is provided with second stamp holes (7) distributed at equal distances in an annular manner on the top side close to the PCB board sub-plates (3), and the connecting rib plate (4) is provided with a second breaking groove (8) on the top side close to the PCB board sub-plates (3).

2. A PCB board with accurately separated stamp holes according to claim 1, characterized in that: The PCB board body (1) is provided with a plurality of rows of cavities (2) for accommodating the PCB board sub-boards (3), and the connecting rib plates (4) are distributed at equal distances in the cavities (2).

3. A PCB board with accurately separated stamp holes according to claim 2, characterized in that: The top views of the first breaking groove (6), the second breaking groove (8) and the third breaking groove (9) are all designed to be arc-shaped, and the first stamp hole (5) passes through the middle positions of the first breaking groove (6) and the third breaking groove (9).

4. A PCB board with accurately separated stamp holes according to claim 3, characterized in that: The cross-section of the first breaking groove (6) and the cross-section of the third breaking groove (9) are both designed to be V-shaped, and the depth of the first breaking groove (6) and the depth of the third breaking groove (9) are both less than half the thickness of the connecting rib plate (4).

5. A PCB board with accurately separated stamp holes according to claim 4, characterized in that: The second stamp hole (7) and the second breaking groove (8) are both tangent to the PCB board split plate (3).

6. A PCB board with accurately separated stamp holes according to claim 5, characterized in that: The side of the second breaking groove (8) close to the connecting rib plate (4) is designed to be inclined, and the thickness of the second breaking groove (8) is greater than half the thickness of the connecting rib plate (4).

7. A PCB board with accurately separated stamp holes according to claim 1, characterized in that: The aperture of the first stamp hole (5) and the aperture of the second stamp hole (7) are 0.8-1 mm, and the spacing between two adjacent first stamp holes (5) and the distance between two adjacent second stamp holes (7) are 1.2-1.8 mm.

8. A PCB board with accurately separated stamp holes according to claim 7, characterized in that: The distance between the first stamp hole (5) and the second stamp hole (7) is 0.4 cm-0.8 cm.

9. A PCB board with accurately separated stamp holes according to claim 1, characterized in that: Both ends of the rib connecting plate (4) are designed to be semicircularly concave.

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