Circuit board butt joint structure

Abstract

The utility model discloses a circuit board butt joint structure, belonging to the technical field of circuit boards, the butt joint structure comprises a first circuit board and a second circuit board in butt joint with the side surface of the circuit board, the side surface of the first circuit board is provided with a butt joint part protruding outwards, the butt joint part is provided with a first lead interface, and the second circuit board is provided with a second lead interface. One side, far away from the first circuit board, of the butt joint part is provided with an insertion sheet; a groove matched with the butt joint part is formed in the side face of the second circuit board, a second lead interface tightly attached to the first lead interface is formed in the groove, a slot matched with the insertion piece is formed in the edge of the side face of the second circuit board, a first blind hole is formed in the bottom in the slot, and a second blind hole is formed in the bottom in the slot. And the first blind hole is filled with an adhesive, so that the insertion sheet is adhered in the slot. According to the utility model, the problem that circuit board butt joint needs a relatively large activity space is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and more specifically, to a circuit board docking structure. Background Art

[0002] A circuit board (also called a circuit board, PCB board) is a board with printed wires. Its main function is to reduce the space occupied by wires and organize the wires in a clear layout. Circuit boards are the result of copper clad laminate processing, which is made by covering a piece of copper foil on the surface of an insulating substrate. Etching is usually used to process copper clad laminates. The method is to apply an anti-corrosion material on the wires to be retained on the copper clad laminate, and then use chemical reagents to etch away the rest, leaving only the copper foil as the wire.

[0003] Sometimes circuit boards need to be spliced ​​during assembly. Existing splicing methods generally use card slots and card blocks to connect. This splicing method often requires a relatively large space to connect two circuit boards, and the connection stability is not high, and it is easy to be misaligned and moved.

[0004] In view of this, the utility model provides a novel circuit board docking structure. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a circuit board docking structure, which solves the problem that the circuit board docking requires a relatively large activity space.

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

[0007] A circuit board docking structure, comprising a first circuit board and a second circuit board docked on a side of the circuit board, wherein the side of the first circuit board is provided with an outwardly protruding docking portion, the docking portion is provided with a first lead interface, and the docking portion is provided with an insert on a side away from the first circuit board;

[0008] A groove matched with the docking portion is provided on the side of the second circuit board, and a second lead interface for being tightly attached to the first lead interface is provided on the groove. A slot matched with the plug-in piece is provided on the edge of the side of the second circuit board, and a first blind hole is provided at the bottom of the slot. The first blind hole is filled with adhesive so that the plug-in piece is bonded to the slot.

[0009] Further preferably, two plug-ins are provided, and the two plug-ins are respectively located at the front and rear sides of the first circuit board, and two slots are also provided and the positions correspond to the plug-ins one by one.

[0010] It is further preferred that: the first circuit board, the docking portion and the plug-in piece are all integrally arranged.

[0011] Further preferably, a convex block is provided on the side surface of the first circuit board, a notch matched with the convex block is provided on the side surface of the second circuit board, and the convex block is used to be inserted into the notch.

[0012] Further preferably, a second blind hole is opened on the inner wall of the notch, and the second blind hole is filled with adhesive so that the protrusion is adhered in the notch.

[0013] Further preferably, the bump and the docking portion are respectively located on the same side of the first circuit board, two bumps are provided, and the docking portion is located between the two bumps.

[0014] Further preferably, the bumps are located at two ends of the side surface of the first circuit board, and the bumps are located in the middle of the side surface of the first circuit board.

[0015] More preferably, the bump is integrally provided with the first circuit board.

[0016] Further preferably, the first circuit board is also provided with a groove and a slot on the other side relative to the docking portion, and the second circuit board is also provided with a docking portion and a protrusion on the other side relative to the groove.

[0017] In summary, the utility model has the following beneficial effects: when docking, first fill the first blind hole and the second blind hole with adhesive respectively, and then align the docking part and the protrusion on the first circuit board with the groove and the notch on the second circuit board and insert them until the first circuit board and the second circuit board fit tightly together. The connection is more firm through the adhesive bonding, and the splicing cost is reduced. In addition, the first circuit board and the second circuit board are docked at the same horizontal position, so it does not require too much vertical space, has strong operability, and is less affected by the operating space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of an embodiment, mainly used to reflect the docking structure of a first circuit board and a second circuit board;

[0019] Figure 2 is a structural schematic diagram of an embodiment, mainly used to reflect the docking structure of a first circuit board and a second circuit board;

[0020] Figure 3 is a structural schematic diagram of an embodiment, mainly used to illustrate the structure of a first circuit board;

[0021] Figure 4 It is a structural schematic diagram of an embodiment, which is mainly used to reflect the structure of the second circuit board.

[0022] In the figure, 1, first circuit board; 2, second circuit board; 3, docking part; 4, insert; 5, bump; 6, first lead interface; 7, groove; 8, slot; 9, first blind hole; 10, notch; 11, second blind hole. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment: A circuit board docking structure, such as Figure 1-4 As shown, it includes a first circuit board 1 and a second circuit board 2 docked on the side of the circuit board. The side of the first circuit board 1 is provided with a docking portion 3 and a bump 5 protruding outward, the bump 5 and the docking portion 3 are respectively located on the same side of the first circuit board 1, there are two bumps 5, and the docking portion 3 is located between the two bumps 5. Preferably, the bump 5 is located at both ends of the side of the first circuit board 1, and the bump 5 is located in the middle of the side of the first circuit board 1, that is, the two bumps 5 are symmetrically arranged at both ends of the docking portion 3. A first lead interface 6 is provided on the docking portion 3, and a plug-in sheet 4 is provided on the side of the docking portion 3 away from the first circuit board 1, there are two plug-ins 4, and the two plug-ins 4 are respectively located on the front and back sides of the first circuit board 1. The first circuit board 1, the docking portion 3 and the plug-in sheet 4 are all arranged as one piece.

[0025] Reference Figure 1-4 , a groove 7 adapted to the docking portion 3 and a notch 10 adapted to the convex block 5 are provided on the side of the second circuit board 2, and the convex block 5 is used to be inserted into the notch 10. In order to fix the convex block 5 in the notch 10, preferably, a plurality of second blind holes 11 are provided on the inner wall of the notch 10, and the plurality of second blind holes 11 are filled with adhesive, so that the convex block 5 is bonded to the notch 10 by the adhesive after being inserted into the notch 10, thereby improving the connection tightness and connection stability between the first circuit board 1 and the second circuit board 2. In order to achieve stable conduction between the first circuit board 1 and the second circuit board 2, specifically, a second lead interface for being closely attached to the first lead interface 6 is provided on the groove 7, a slot 8 adapted to the plug-in 4 is provided on the side edge of the second circuit board 2, a plurality of first blind holes 9 are provided on the bottom of the slot 8, and the plurality of first blind holes 9 are filled with adhesive, so that the plug-in 4 is bonded to the slot 8.

[0026] Preferably, two slots 8 are also provided and their positions correspond to the inserts 4 one by one, and the protrusions 5 are integrally provided with the first circuit board 1. To facilitate the sequential docking of multiple circuit boards, preferably, the first circuit board 1 is also provided with a groove 7 and a slot 8 on the other side relative to the docking portion 3, and the second circuit board 2 is also provided with a docking portion 3 and a protrusion 5 on the other side relative to the groove 7.

[0027] Docking process: first fill the first blind hole 9 and the second blind hole 11 with adhesive, then align the docking portion 3 and the bump 5 on the first circuit board 1 with the groove 7 and the notch 10 on the second circuit board 2 and insert them until the first circuit board 1 fits tightly with the second circuit board 2. The connection is more secure through adhesive bonding, which reduces the splicing cost.

[0028] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A circuit board docking structure, comprising a first circuit board (1) and a second circuit board (2) docked to a side of the circuit board, characterized in that: The first circuit board (1) is provided with a butt joint portion (3) protruding outward on the side surface, the butt joint portion (3) is provided with a first lead interface (6), and the butt joint portion (3) is provided with an inserting piece (4) on a side away from the first circuit board (1); A groove (7) adapted to the docking portion (3) is provided on the side of the second circuit board (2); a second lead interface for being closely attached to the first lead interface (6) is provided on the groove (7); a slot (8) adapted to the plug-in sheet (4) is provided on the side edge of the second circuit board (2); a first blind hole (9) is provided at the bottom of the slot (8); and an adhesive is filled in the first blind hole (9) so that the plug-in sheet (4) is bonded to the slot (8).

2. A circuit board docking structure according to claim 1, characterized in that: Two of the plug-ins (4) are provided, and the two plug-ins (4) are respectively located at the front and rear sides of the first circuit board (1), and two of the slots (8) are also provided and their positions correspond one to one with the plug-ins (4).

3. A circuit board docking structure according to claim 1, characterized in that: The first circuit board (1), the docking portion (3) and the inserting piece (4) are all arranged in one piece.

4. A circuit board docking structure according to claim 1, characterized in that: The first circuit board (1) is provided with a protrusion (5) on its side, and the second circuit board (2) is provided with a notch (10) matching the protrusion (5), and the protrusion (5) is used to be inserted into the notch (10).

5. A circuit board docking structure according to claim 4, characterized in that: A second blind hole (11) is provided on the inner wall of the notch (10), and the second blind hole (11) is filled with adhesive so that the protrusion (5) is bonded to the notch (10).

6. A circuit board docking structure according to claim 4, characterized in that: The protrusion (5) and the docking portion (3) are respectively located on the same side of the first circuit board (1); two protrusions (5) are provided, and the docking portion (3) is located between the two protrusions (5).

7. A circuit board docking structure according to claim 6, characterized in that: The bumps (5) are located at two ends of the side surface of the first circuit board (1), and the bumps (5) are located in the middle of the side surface of the first circuit board (1).

8. A circuit board docking structure according to claim 4, characterized in that: The bump (5) is integrally arranged with the first circuit board (1).

9. A circuit board docking structure according to claim 4, characterized in that: The first circuit board (1) is also provided with a groove (7) and a slot (8) on the other side relative to the docking portion (3), and the second circuit board (2) is also provided with a docking portion (3) and a protrusion (5) on the other side relative to the groove (7).

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