Circuit board convenient to split

Abstract

The utility model relates to the technical field of circuit boards, in particular to a circuit board convenient to split, which comprises a circuit mother board, a plurality of annular through grooves are arranged on the circuit mother board, a sub-circuit board is arranged at the center of each annular through groove, and a connecting block is arranged at one end of each sub-circuit board far away from each other. Each connecting block corresponds to one annular through groove, one end, far away from the sub-circuit board, of each connecting block is connected with the inner wall of the corresponding annular through groove, and grooves are formed in the two sides, close to the sub-circuit board, of each connecting block. According to the circular circuit board splitting machine, the two connecting blocks are arranged in the middle of the circular circuit board and can be properly narrowed towards the middle, the two connecting blocks are only located at the positions away from the sub-circuit boards, the circular circuit board splitting machining can be completed through an existing feeding board splitting machine, and board splitting operation can be completed on a whole row of sub-circuit boards only through two times of linear cutting.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board which is convenient for board separation. Background Art

[0002] Circuit board, also known as printed circuit board (PCB), is an important electronic component. It is mainly composed of substrate, conductive circuit, pad and via. The function of circuit board is to provide mechanical support and electrical connection for electronic components, so that electronic components can realize specific functions according to design requirements. It is an indispensable part of electronic equipment and is widely used in various electronic products, such as computers, mobile phones, televisions, etc.

[0003] In the actual production process of circuit boards, circuit boards need to be divided into panels. The purpose of setting up a panel structure is to divide large circuit boards into small panels to facilitate installation in the equipment and subsequent maintenance and replacement. After the panels are divided, multiple small panels can be processed and assembled at the same time, which improves production efficiency and meets the specific requirements of different products or designs.

[0004] There are circular circuit boards in the prior art, which are often used in wearable devices, such as smart watches, health trackers and other electronic devices. These electronic products are relatively small in size, and correspondingly, the size of circular circuit boards is generally relatively small. When these circular circuit boards leave the factory, they are usually packaged and shipped with multiple sub-circuit boards on a mother circuit board. After arriving at the manufacturer of the electronic equipment, the manufacturer will separate the boards. However, circular circuit boards usually need to be cut and separated by a specific mold and an automatic CNC cutter, or a small number of manufacturers still use manual separation. For smaller manufacturers, the automatic CNC cutter is expensive, and when changing to different products, the automatic CNC cutter needs to be reprogrammed to adapt to circuit boards of different sizes. The mainstream cutting equipment of these manufacturers is still a knife-feeding splitter, which can only perform linear cutting. Therefore, it is necessary to design a circular circuit board suitable for use by a knife-feeding splitter. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a circuit board that is easy to separate and can be adapted to an existing knife-moving board separation machine. The knife-moving board separation machine can perform linear cutting to complete the board separation process of the circuit board, thereby facilitating board separation.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board that is easy to separate, including a circuit mother board, a plurality of annular through grooves are provided on the circuit mother board, a sub-circuit board is arranged at the center of each of the annular through grooves, a connecting block is arranged at the end away from each other of the sub-circuit boards, each of the connecting blocks corresponds to an annular through groove, and the end of each connecting block away from the sub-circuit board is connected to the inner wall of the corresponding annular through groove, and each of the connecting blocks is provided with grooves on both sides close to the sub-circuit board.

[0009] Through the above technical scheme, the connecting block in the utility model can be made to be close to one side of the corresponding sub-circuit board, and can be appropriately narrowed toward the middle, and the two connecting blocks are only located at positions far away from the sub-circuit boards. Not only can the board splitting processing of the circular circuit board be completed by the existing knife-feeding board splitting machine, but also only two straight-line cuts are required to complete the board splitting operation for a whole row of sub-circuit boards.

[0010] Furthermore, a plurality of the sub-circuit boards are arranged in an array on the mother circuit board.

[0011] Through the above technical solution, multiple sub-circuit boards are arranged on a circuit motherboard, which can save space. Especially when a large number of similar functional modules are required, the array setting can reduce the volume. Multiple sub-circuit boards are manufactured at one time and then integrated into a circuit motherboard, which can improve production efficiency. Especially in large-scale production, the connection between the sub-boards and the motherboard can be simplified.

[0012] Furthermore, the shape of the groove is an arc-shaped groove, and the two arc-shaped grooves are arranged symmetrically.

[0013] Through the above technical solution, the connecting block can be close to one side of the corresponding sub-circuit board and can be appropriately narrowed toward the middle. When a straight line cutting is performed by a knife-feeding board splitter, burrs on the surface of the sub-circuit board can be effectively avoided, and the practicability is high.

[0014] Furthermore, a plurality of matching limiting guide grooves are provided on the front and back sides of the circuit motherboard.

[0015] Furthermore, each of the connecting blocks is provided with a transverse dividing groove near the top and the bottom of the sub-circuit board.

[0016] Through the above technical solution, in a small processing plant that lacks a knife-feeding board separation machine, the sub-circuit board and the circuit mother board can also be separated by manually breaking off the connecting block.

[0017] Furthermore, each of the grooves is in the shape of a rectangular groove, and the two rectangular grooves are arranged symmetrically.

[0018] Furthermore, each of the connecting blocks is provided with a central through slot near the middle of the sub-circuit board.

[0019] Through the above technical solution, by providing the rectangular groove and the central through groove opened in the middle of the connecting block, the difficulty of manual board separation and the board separation machine can be effectively reduced.

[0020] Furthermore, the mother circuit board is provided with a plurality of separation grooves, and each of the separation grooves corresponds to the position of a row of sub-circuit boards.

[0021] Furthermore, the cross-section of each of the separation grooves is a V-shaped structure.

[0022] Through the above technical solution, when manually separating boards, the circuit mother board can be divided into multiple long strips of small boards through the separation grooves, and then the sub-circuit boards can be separated from the circuit mother board, which can make the separation process smoother and more convenient.

[0023] Through the above technical solution, compared with the prior art, the utility model provides a circuit board that is easy to separate, and has the following beneficial effects:

[0024] In the utility model, the connecting block in the utility model can be made close to one side of the corresponding sub-circuit board, and can be appropriately narrowed toward the middle, and the two connecting blocks are only located at positions far away from the sub-circuit boards. Not only can the board splitting processing of the circular circuit board be completed by the existing knife-feeding board splitting machine, but also only two straight-line cuts are required to complete the board splitting operation for a whole row of sub-circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure in Example 1;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the structure of the anastomotic limiting guide groove in Example 1;

[0028] Figure 4 This is a schematic diagram of the structure of the transverse dividing groove in Example 2;

[0029] Figure 5 This is a schematic diagram of the structure of the central through slot in Example 2;

[0030] Figure 6 This is a schematic diagram of the structure of the sub-circuit board in Example 2;

[0031] Figure 7 Schematic diagram of the structure of the separation groove in Example 2.

[0032] Among them: 1. Circuit motherboard; 2. Separation groove; 3. Sub-circuit board; 4. Connection block; 5. Annular through groove; 6. Arc groove; 7. Horizontal dividing groove; 8. Rectangular groove; 9. Center through groove; 10. Matching limit guide groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] For example, see Figure 1-Figure 2 The utility model provides a technical solution: a circuit board that is easy to separate, including a circuit mother board 1, a plurality of annular grooves 5 are opened on the circuit mother board 1, a sub-circuit board 3 is arranged at the center of each annular groove 5, a connecting block 4 is arranged at the end away from each sub-circuit board 3, each connecting block 4 corresponds to an annular groove 5, and an end of each connecting block 4 away from the sub-circuit board 3 is connected to the inner wall of the corresponding annular groove 5, each connecting block 4 is opened on both sides close to the sub-circuit board 3. Multiple sub-circuit boards 3 are arranged in an array on the circuit mother board 1.

[0035] In the utility model, the connecting block 4 in the utility model can be made close to one side of the corresponding sub-circuit board 3, and can be appropriately narrowed toward the middle, and the two connecting blocks 4 are only located at positions far away from the sub-circuit boards 3. Not only can the board splitting processing of the circular circuit board be completed by the existing knife-feeding board splitting machine, but also only two straight line cuts are required to complete the board splitting operation for a whole row of sub-circuit boards 3.

[0036] Through the above technical solution, multiple sub-circuit boards 3 are arranged on a circuit mother board 1, which can save space. Especially when a large number of similar functional modules are required, the array setting can reduce the volume. Multiple sub-circuit boards 3 are manufactured at one time and then integrated into a circuit mother board 1. This can improve production efficiency, especially in large-scale production, and can simplify the connection between the sub-boards and the motherboard.

[0037] For example 2, please refer to Figure 4-Figure 6A circuit board that is easy to separate, including a circuit mother board 1, a plurality of annular grooves 5 are opened on the circuit mother board 1, a sub-circuit board 3 is arranged at the center of each annular groove 5, a connecting block 4 is arranged at the end away from each sub-circuit board 3, each connecting block 4 corresponds to an annular groove 5, and an end of each connecting block 4 away from the sub-circuit board 3 is connected to the inner wall of the corresponding annular groove 5, and each connecting block 4 is provided with grooves on both sides close to the sub-circuit board 3.

[0038] The shape of the groove is an arc groove 6, and the two arc grooves 6 are arranged symmetrically. The front and back sides of the circuit motherboard 1 are both provided with a plurality of matching limiting guide grooves 10.

[0039] Through the above-mentioned arrangement, the connecting block 4 can be made close to one side of the corresponding sub-circuit board 3, and can be appropriately narrowed toward the middle. When a straight-line cutting is performed by a knife-moving board splitter, burrs on the surface of the sub-circuit board 3 can be effectively avoided. It is highly practical, and by providing a plurality of matching limit guide grooves 10 on the front and back of the circuit mother board 1, it is convenient for the staff to clamp the circuit mother board 1 on the jig corresponding to the knife-moving board splitter, avoiding the position of the circuit mother board 1 from slipping during board separation, ensuring the accuracy of board separation, and the limiting guide grooves 10 can be used to guide and position the division of the circuit mother board 1, which can improve the efficiency of board separation by the knife-moving board splitter.

[0040] See also Figure 3 Each connection block 4 is provided with a transverse dividing groove 7 near the top and bottom of the sub-circuit board 3. In a small processing plant that lacks a knife-feeding board splitter, the sub-circuit board 3 can also be separated from the circuit motherboard 1 by manually breaking off the connection block 4.

[0041] See also Figure 4-Figure 6 Each groove is in the shape of a rectangular groove 8, and the two rectangular grooves 8 are symmetrically arranged. A central through groove 9 is opened in the middle of each connecting block 4 near the sub-circuit board 3. By setting the rectangular grooves 8 and the central through groove 9 opened in the middle of the connecting block 4, the difficulty of manual board separation and knife-moving board separation machine can be effectively reduced.

[0042] See also Figure 5-Figure 6 A plurality of separation grooves 2 are provided on the circuit motherboard 1, each separation groove 2 corresponds to the position of a row of sub-circuit boards 3, and the cross-section of each separation groove 2 is a V-shaped structure.

[0043] With such an arrangement, when manually separating boards, the circuit motherboard 1 can be divided into a plurality of long strips of small boards through the separation grooves 2 first, and then the sub-circuit boards 3 can be separated from the circuit motherboard 1, which can make the separation process smoother and more convenient.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board that is easy to separate, characterized by: The invention comprises a mother circuit board (1), wherein a plurality of annular through grooves (5) are provided on the mother circuit board (1), a sub-circuit board (3) is arranged at the center of each annular through groove (5), a connecting block (4) is arranged at one end away from the sub-circuit board (3), each connecting block (4) corresponds to an annular through groove (5), one end of each connecting block (4) away from the sub-circuit board (3) is connected to the inner wall of the corresponding annular through groove (5), and each connecting block (4) is provided with grooves on both sides close to the sub-circuit board (3).

2. A circuit board that is easy to separate according to claim 1, characterized in that: The plurality of sub-circuit boards (3) are arranged in an array on the mother circuit board (1).

3. A circuit board that is easy to separate according to claim 2, characterized in that: The shape of the groove is an arc-shaped groove (6), and the two arc-shaped grooves (6) are arranged in a left-right symmetrical manner.

4. A circuit board that is easy to separate according to claim 3, characterized in that: The front and back sides of the circuit motherboard (1) are both provided with a plurality of matching limiting guide grooves (10).

5. The circuit board that is easy to separate according to claim 1, characterized in that: Each of the connection blocks (4) is provided with a transverse dividing groove (7) at the top and bottom close to the sub-circuit board (3).

6. A circuit board that is easy to separate according to claim 5, characterized in that: The shape of each groove is a rectangular groove (8), and the two rectangular grooves (8) are arranged in a left-right symmetrical manner.

7. A circuit board that is easy to separate according to claim 6, characterized in that: Each of the connection blocks (4) is provided with a central through slot (9) near the middle of the sub-circuit board (3).

8. A circuit board that is easy to separate according to claim 7, characterized in that: The mother circuit board (1) is provided with a plurality of separation grooves (2), and each separation groove (2) corresponds to the position of a row of sub-circuit boards (3).

9. A circuit board that is easy to separate according to claim 8, characterized in that: The cross section of each of the separation grooves (2) is a V-shaped structure.

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