A PCB assembly and a die structure for a PCB

Abstract

The utility model discloses a kind of PCB spliced board and for PCB's die structure, including PCB board and edge board, multiple the PCB board is located between two the edge board, adjacent the PCB board is connected by first profile connection point, outermost the PCB board is connected with corresponding the edge board by second profile connection point;Wherein, the position of the PCB board corresponding first profile connection point and second profile connection point is equipped with recess, and first profile connection point and second profile connection point are connected with corresponding PCB board in recess.The utility model provides a kind of PCB spliced board and for PCB's die structure, recess is designed on the basis of conventional PCB board, and pre-breakage die-cutting line is carried out at the connecting place of recess, so when PCB spliced board is broken, it can be effectively guided to the position of broken by pre-breakage die-cutting, while it can also reduce the generation of burr, and under the action of recess, part of possible residual burr can be hidden.

Description

Technical Field

[0001] This utility model relates to the field of PCB panel technology, and in particular to a PCB panel and a punching die structure for PCB. Background Technology

[0002] PCB panelization refers to combining multiple identical or different PCB (printed circuit board) units into a larger board in a specific way to form a unified processing unit. PCB panelization is a key technology in electronic manufacturing. Its core is to integrate multiple small PCB units into a large board through optimized layout, mainly serving the production needs of SMT (surface mount technology) production lines.

[0003] As per the instruction manual Figure 6 As shown, after the thick PCB is punched, it undergoes surface mount technology (SMT). After SMT, it cannot be punched into individual pieces. When separating into individual pieces, it needs to be broken by hand. In a conventional PCB panel, multiple PCBs 1-1 are connected by connection points 1-2. Since connection points 1-2 are located on the outside of PCBs 1-1, burrs are easily left at the edges when breaking them. These burrs will protrude from the edges of PCBs 1-1, affecting the dimensions and assembly. Therefore, a PCB panel and a punching die structure for PCBs are proposed. Utility Model Content

[0004] Based on this, it is necessary to provide a PCB panel and a punching die structure for PCB to address the above-mentioned technical problems. The conventional PCB board is designed with grooves, and a pre-cutting line is made at the connection of the grooves. In this way, when the PCB panel is broken, the fracture position can be effectively guided by the pre-cutting line, while reducing the generation of burrs. Furthermore, the grooves can also hide some of the residual burrs, preventing them from protruding directly from the edge of the PCB board and affecting subsequent dimensions and assembly.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A PCB panel includes PCB boards and side panels. Multiple PCB boards are disposed between two side panels. Adjacent PCB boards are connected by a first external shape connection point. The outermost PCB board is connected to the corresponding side panel by a second external shape connection point.

[0007] The PCB board has grooves at the positions corresponding to the first and second shape connection points, and the first and second shape connection points are connected to the corresponding PCB board within the grooves.

[0008] Furthermore, pre-cutting lines are provided at the connection points of the first and second external shapes with the groove.

[0009] Furthermore, the groove is rectangular in shape.

[0010] Furthermore, the inner corner of the rectangular groove has an inner arc chamfer, and the edge of the groove where it connects to the PCB board has an outer arc chamfer.

[0011] Furthermore, the width of the groove is greater than the width of the corresponding first shape connection point and second shape connection point.

[0012] Furthermore, a panel gap is formed between adjacent PCB boards, and the height of the first external connection point is greater than the height of the panel gap.

[0013] Furthermore, the number of grooves on a single PCB board is four, and two grooves are grouped together to form two groups. The two groups of grooves are distributed on both sides of the PCB board, and a gap is left between the two grooves on one side of the PCB board.

[0014] Furthermore, the first and second shape connection points can enable multiple PCB boards and side boards to jointly form a PCB panel structure.

[0015] A punching die structure for PCB includes a PCB panel, an upper punching die and a lower punching die, wherein punching cutters are provided on opposite sides of the upper punching die and the lower punching die.

[0016] When the upper and lower punching dies come into contact and punch, the first and second shape connection points can form a pre-cutting line.

[0017] Furthermore, the punching tool in the upper punching die is placed in the PCB panel insertion groove, and the punching tool in the lower punching die is placed on the punching boss.

[0018] When the upper and lower punching dies are punching, the punching boss extends into the slot of the PCB panel to pre-break the first shape connection point and the second shape connection point.

[0019] Furthermore, the distance between the blades of the two punching tools in the punching state is between 50% and 70% of the thickness of the PCB board.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The PCB panel and the die structure for PCB provided by this utility model are based on a conventional PCB board with a groove design and a pre-cutting line at the joint of the groove. When the PCB panel is broken, the pre-cutting line can effectively guide the break point, which facilitates the separation of multiple PCB boards. At the same time, it can reduce the generation of burrs. Furthermore, the groove can hide some of the burrs that may remain, preventing them from protruding directly from the edge of the PCB board and affecting subsequent dimensions and assembly. Attached Figure Description

[0022] Figure 1 A schematic diagram of the PCB panel and the stamping die structure for PCB provided by this utility model;

[0023] Figure 2 A partial structural schematic diagram of the PCB panel and the stamping die structure for PCB provided by this utility model;

[0024] Figure 3 The PCB panel and the die structure for PCB provided by this utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 A schematic diagram of the PCB panel and the upper and lower punching dies for the PCB punching structure provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the PCB panel and the PCB board punching state provided by this utility model;

[0027] Figure 6 A schematic diagram of a conventional PCB panel structure provided by this utility model.

[0028] The markings in the diagram are explained as follows:

[0029] PCB board 1, panel gap 11;

[0030] Side plate 2;

[0031] First external shape connection point 3;

[0032] Second external shape connection point 4;

[0033] Groove 5, inner arc chamfer 51, outer arc chamfer 52;

[0034] Upper punching die 6, PCB panel insertion slot 61;

[0035] Lower punching die 7, punching boss 71;

[0036] 8 punching cutters;

[0037] 9. Pre-cut punch line. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0039] As described in the background art, as shown in the appendix to the specification. Figure 6 As shown, after the thick PCB is punched, it undergoes surface mount technology (SMT). After SMT, it cannot be punched into individual pieces. When separating into individual pieces, it needs to be broken by hand. In a conventional PCB panel, multiple PCBs 1-1 are connected by connection points 1-2. Since connection points 1-2 are located on the outside of PCBs 1-1, burrs are easily left at the edges when breaking them. These burrs will protrude from the edges of PCBs 1-1, affecting the dimensions and assembly.

[0040] To solve this technical problem, this utility model provides a PCB panel and a punching die structure for PCBs, which is applied to PCB panels.

[0041] For details, please refer to Figures 1-6 The PCB panel specifically includes a PCB board 1 and a side board 2. Multiple PCB boards 1 are disposed between two side boards 2. Adjacent PCB boards 1 are connected by a first external shape connection point 3. The outermost PCB board 1 is connected to the corresponding side board 2 by a second external shape connection point 4.

[0042] The PCB board 1 is provided with grooves 5 at the positions corresponding to the first shape connection point 3 and the second shape connection point 4, and the first shape connection point 3 and the second shape connection point 4 are connected to the corresponding PCB board 1 in the grooves 5.

[0043] Furthermore, pre-cutting lines 9 are provided at the connection points of the first outer shape connection point 3 and the second outer shape connection point 4 with the groove 5.

[0044] The PCB panel provided by this utility model has a groove 5 designed on the basis of a conventional PCB board 1. When the PCB panel is broken, the groove 5 can hide some of the possible residual burrs, preventing them from protruding directly from the edge of the PCB board 1 and affecting subsequent dimensions and assembly.

[0045] For details, please refer to Figures 1-6The aforementioned punching die structure for PCB includes a PCB panel, an upper punching die 6 and a lower punching die 7, and punching cutters 8 are provided on opposite sides of the upper punching die 6 and the lower punching die 7; when the upper punching die 6 and the lower punching die 7 are in contact for punching, the first outer shape connection point 3 and the second outer shape connection point 4 can form a pre-cutting line 9.

[0046] The punching die structure for PCB provided by this utility model has a pre-cutting line 9 at the connection of the groove 5, which can effectively guide the fracture position through the pre-cutting line 9, facilitate the separation between multiple PCB boards 1, and reduce the generation of burrs.

[0047] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0048] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] Example 1

[0051] Please refer to Figures 1-6 As shown, a PCB panel includes a PCB board 1 and a side board 2. Multiple PCB boards 1 are disposed between two side boards 2. Adjacent PCB boards 1 are connected by a first external shape connection point 3. The outermost PCB board 1 is connected to the corresponding side board 2 by a second external shape connection point 4.

[0052] The PCB board 1 is provided with grooves 5 at the positions corresponding to the first shape connection point 3 and the second shape connection point 4, and the first shape connection point 3 and the second shape connection point 4 are connected to the corresponding PCB board 1 in the grooves 5.

[0053] The materials used for the first external shape connection point 3 and the second external shape connection point 4 are the same as those used for the PCB board 1 itself, which can be described as an integrated structure. At the same time, the thicknesses of the PCB board 1, the first external shape connection point 3, the second external shape connection point 5 and the side plate 2 are also the same, which facilitates the subsequent pre-cutting of the PCB board 1.

[0054] Based on the conventional PCB board 1, this embodiment first designs a groove 5, so that the connection points of the first external shape connection point 3 and the second external shape connection point 4 with the PCB board 1 are located in the groove 5. With this structural design, if a burr is generated when the adjacent PCB board 1 is broken, the burr can be well hidden in the groove 5 and will not protrude from the edge of the PCB board 1, thus not affecting the subsequent assembly.

[0055] As a further optimization in this embodiment: both the first outer shape connection point 3 and the second outer shape connection point 4 are provided with pre-cutting lines 9 at the connection points with the groove 5.

[0056] By setting the pre-cutting line 9, the connection between the first external shape connection point 3 and the second external shape connection point 4 and the PCB board 1 can be partially broken in advance. In this way, when the PCB board 1 is broken apart, the break point can be effectively guided so that it is separated along the pre-cutting line 9 as much as possible, which facilitates the disassembly of the PCB panel. This also better guides the burr into the groove 5, further ensuring that the burr does not protrude from the edge of the PCB board 1 and affect the subsequent assembly.

[0057] Example 2

[0058] The PCB panel provided in Example 1 is further optimized, specifically, as follows: Figure 3 As shown, the groove 5 is rectangular in shape;

[0059] The inner corner of the rectangular groove 5 has an inner arc chamfer 51, and the edge of the groove 5 connecting with the PCB board 1 has an outer arc chamfer 52.

[0060] By setting the inner arc chamfer 51 and the outer arc chamfer 52, grooves can be cut on the PCB board 1 to form grooves 5, while avoiding the problem of sharp corners caused by the shape of the grooves, so that the corners can be rounded, avoiding the problem of poor overall appearance of the PCB board 1 and easy scratches.

[0061] The width of the groove 5 is greater than the width of the corresponding first external shape connection point 3 and second external shape connection point 4. This specific width design can ensure that when the first external shape connection point 3 and the second external shape connection point 4 can move in the groove 5, they will not rub against the two side walls of the groove 5, which is beneficial to the protection of the outer layer of the PCB board 1 when it is broken.

[0062] Meanwhile, since there are gaps between the first outer shape connection point 3 and the second outer shape connection point 4 and the groove 5 on both sides, the gaps at this point can satisfy the subsequent punching tool to fully pre-cut the first outer shape connection point 3 and the second outer shape connection point 4.

[0063] Example 3

[0064] Further optimization of the PCB panel provided in Embodiment 1 or 2, such as... Figure 1 and Figure 2 As shown, a panel gap 11 is formed between adjacent PCB boards 1, and the height of the first external connection point 3 is greater than the height of the panel gap 11.

[0065] The number of grooves 5 on a single PCB board 1 is four, and two grooves 5 are grouped together, forming two groups. The two groups of grooves 5 are distributed on both sides of the PCB board 1. There is a gap between the two grooves 5 on one side of the PCB board 1. The actual number of grooves 5 can be adjusted according to the actual size of the PCB board 1. For example, when the overall size of the PCB board 1 is large, the number of grooves 5 can be increased appropriately to ensure the stable connection between the PCB boards 1.

[0066] The first external shape connection point 3 and the second external shape connection point 4 can enable multiple PCB boards 1 and side boards 2 to jointly form a PCB panel structure.

[0067] Example 4

[0068] This embodiment proposes a punching die structure for PCB, which includes a PCB panel, including the PCB panel in Embodiment 1, Embodiment 2 and Embodiment 3 above, and also includes an upper punching die 6 and a lower punching die 7, with punching cutters 8 provided on opposite sides of the upper punching die 6 and the lower punching die 7.

[0069] When the upper punching die 6 and the lower punching die 7 come into contact and punch, the first outer shape connection point 3 and the second outer shape connection point 4 can form a pre-cutting line 9. Since the specific structure of the upper punching die 6 and the lower punching die 7, as well as the driving principle, are technical common knowledge known to those skilled in the art, no further explanation is needed in this embodiment.

[0070] The punching cutter 8 in the upper punching die 6 is disposed in the PCB panel insertion groove 61 thereon, and the punching cutter 8 in the lower punching die 7 is disposed on the punching boss 71 thereon.

[0071] When the upper punching die 6 and the lower punching die 7 are punching, the punching boss 71 extends into the PCB panel insertion groove 61 to pre-break the first external shape connection point 3 and the second external shape connection point 4. In this way, the first external shape connection point 3 and the second external shape connection point 4 connected in the groove 5 on the PCB board are sequentially cut and pre-broken, which facilitates the subsequent breaking and separation of the PCB board 2.

[0072] Example 5

[0073] The die structure for PCB provided in Embodiment 4 can be further optimized, such as... Figure 5 As shown, the distance between the blades of the two punching tools 8 in the punching state is between 50% and 70% of the thickness of the PCB board 1;

[0074] Place the PCB panel between two punching cutters 8, adjust the position of the PCB panel so that the first shape connection point 3 or the second shape connection point 4 that needs to be pre-broken corresponds to the punching cutter 8, and then bring the upper punching die 6 and the lower punching die 7 closer to each other so that the two punching cutters 8 can cut the PCB panel on both sides at the same time to form the pre-broken punching line 9.

[0075] It should be noted that after punching, the unpunched thickness will still account for 50% to 70% of the thickness of PCB 1, in order to maintain the stability between multiple PCBs 1.

[0076] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0077] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A PCB panel, comprising PCB boards (1) and side panels (2), wherein a plurality of the PCB boards (1) are disposed between two of the side panels (2), characterized in that, The adjacent PCB boards (1) are connected by a first shape connection point (3), and the outermost PCB board (1) is connected to the corresponding side board (2) by a second shape connection point (4). The PCB board (1) is provided with grooves (5) at the positions corresponding to the first external shape connection point (3) and the second external shape connection point (4), and the first external shape connection point (3) and the second external shape connection point (4) are connected to the corresponding PCB board (1) in the grooves (5). Furthermore, pre-cutting lines (9) are provided at the connection points of the first outer shape connection point (3) and the second outer shape connection point (4) with the groove (5).

2. A PCB panel according to claim 1, characterized in that, The groove (5) is rectangular in shape.

3. A PCB panel according to claim 2, characterized in that, The inner corner of the rectangular groove (5) has an inner arc chamfer (51), and the edge of the groove (5) connecting with the PCB board (1) has an outer arc chamfer (52).

4. A PCB panel according to claim 1, characterized in that, The width of the groove (5) is greater than the width of the corresponding first shape connection point (3) and second shape connection point (4).

5. A PCB panel according to claim 1, characterized in that, A panel gap (11) is formed between adjacent PCB boards (1), and the height of the first external connection point (3) is greater than the height of the panel gap (11).

6. A PCB panel according to claim 1, characterized in that, The number of grooves (5) on a single PCB board (1) is four. Two grooves (5) form a group, and there are two groups in total. The two groups of grooves (5) are distributed on both sides of the PCB board (1). There is a gap between the two grooves (5) on one side of the PCB board (1).

7. A PCB panel according to claim 1, characterized in that, The first external shape connection point (3) and the second external shape connection point (4) can enable multiple PCB boards (1) and side boards (2) to jointly form a PCB panel structure.

8. A die structure for a PCB, comprising a PCB panel according to any one of claims 1-7, characterized in that, It also includes an upper punching die (6) and a lower punching die (7), and punching tools (8) are provided on opposite sides of the upper punching die (6) and the lower punching die (7). When the upper punching die (6) and the lower punching die (7) come into contact for punching, the first external shape connection point (3) and the second external shape connection point (4) can form a pre-cut punching line (9).

9. A die structure for PCBs according to claim 8, characterized in that, The punching cutter (8) in the upper punching die (6) is placed in the PCB panel insertion groove (61) above it, and the punching cutter (8) in the lower punching die (7) is placed on the punching boss (71) above it. When the upper punching die (6) and the lower punching die (7) shown are punching, the punching boss (71) extends into the PCB panel insertion groove (61) to pre-break the first external shape connection point (3) and the second external shape connection point (4).

10. A die structure for PCB according to claim 9, characterized in that, The distance between the blades of the two punching tools (8) in the punching state is between 50% and 70% of the thickness of the PCB board (1).

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