Circuit board capable of preventing metalized half-hole ring loss

Abstract

The utility model relates to the technical field of circuit boards, and particularly discloses a circuit board for preventing a metalized half-hole ring from missing, which comprises a daughter board and a mother board, a plurality of protection reinforcing grooves are arranged at the edge of the daughter board, a plurality of metal half-hole grooves are uniformly arranged in each protection reinforcing groove, a plurality of butt joint columns are arranged at the bottom of the daughter board, and the butt joint columns are connected with the daughter board. A plurality of limiting grooves are formed in the top of the mother board, the number of the butt joint columns is equal to that of the limiting grooves, the butt joint columns and the limiting grooves are in one-to-one correspondence, each locking rod is used for locking and fixing the butt joint columns corresponding to the locking rods, the daughter board and the mother board can be connected and locked through the locking assemblies, the connection strength between the daughter board and the mother board is improved, and the service life of the daughter board and the mother board is prolonged. When the circuit board is abnormally vibrated in the use process or the transportation process, the welding position of the daughter board and the mother board can be prevented from being directly stressed, the problem that welding spots fall off is avoided, and therefore the phenomenon that the metalized half-hole ring is damaged can be avoided, and the stability and durability of the circuit board are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board capable of preventing the loss of metallized half-hole rings. Background Art

[0002] Circuit board is the abbreviation of printed circuit board (PCB). Usually, the conductive pattern made of printed circuits, printed components or a combination of the two on the insulating material according to a predetermined design is called a printed circuit. The conductive pattern that provides electrical connection between components on the insulating substrate is called a printed circuit. In this way, the finished board of printed circuits or printed circuits is called a printed circuit board, also known as a printed board or printed circuit board.

[0003] Some circuit boards will have multiple metallized half-hole rings on the edge of the circuit board, and then the circuit board with the metallized half-hole rings will be connected to another circuit board by welding. The circuit board with the metallized half-hole rings is generally called a daughter board, and the circuit board connected to it is called a motherboard. However, the connection between the existing circuit board with the metallized half-hole ring and the motherboard is usually fixed by multiple solder points. When the circuit board is abnormally vibrated during use or transportation, some solder points will fall off, thereby causing some metallized half-hole rings to be defective, affecting the normal use of the circuit board. Utility Model Content

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board for preventing the loss of metallized half-hole rings, comprising a daughter board and a mother board, a plurality of protective reinforcement grooves are provided at the edge of the daughter board, a plurality of metal half-hole grooves are evenly provided in each protective reinforcement groove, a plurality of docking posts are provided at the bottom of the daughter board, a plurality of limiting grooves are provided at the top of the mother board, and the number of the docking posts and the limiting grooves are equal and correspond one to one;

[0005] A locking assembly, wherein a plurality of locking assemblies are provided, each locking assembly comprises a locking rod, each locking rod corresponds to a docking post, and each locking rod is used to lock and fix the docking post corresponding to the locking rod.

[0006] Through the above technical solution, the daughter board and the mother board can be connected and locked by the locking assembly, thereby improving the connection strength between the daughter board and the mother board. When the circuit board is subjected to abnormal vibration during use or transportation, the welding point between the daughter board and the mother board can be prevented from being directly stressed, and the problem of solder joints falling off can be avoided, thereby avoiding the occurrence of defects in the metallized half-hole ring, thereby improving the stability and durability of the circuit board.

[0007] Furthermore, protective convex strips are arranged on the sides of each protective reinforcement groove.

[0008] By arranging protective convex strips beside the protective reinforcement groove, the solder joints at the metal half-hole groove can be protected, thereby preventing the solder joints at the metal half-hole groove from being scratched and squeezed during the use or transportation of the circuit board, and further preventing the solder joints from falling off.

[0009] Furthermore, each docking post is slidably matched with the corresponding limiting groove, and the outer diameter of each docking post is larger than the inner diameter of the limiting groove corresponding to the docking post.

[0010] Through the sliding cooperation between the docking columns and the corresponding limit grooves, the sub-board can be quickly installed on the motherboard, which can play a role in temporarily fixing the sub-board. In the subsequent welding process, the position of the sub-board and the motherboard can be avoided from being offset, ensuring the accuracy of welding.

[0011] Furthermore, the locking assembly also includes a plurality of guide slots, which are respectively arranged on the motherboard, and the number of the guide slots is equal to and corresponds to the limiting slots, and each guide slot is connected to the corresponding limiting slot.

[0012] Furthermore, a locking rod is slidably connected in each guide slot, and a control lever is arranged on the top of each locking rod.

[0013] Furthermore, a locking groove is provided on each docking column, an end of each locking rod away from the control lever is provided with an oblique chamfer, and an end of each locking rod away from the control lever is engaged with a locking groove.

[0014] Furthermore, an elastic push sheet is provided at one end of each control lever away from the locking rod, and one end of each elastic push sheet away from the control lever is fixedly connected to an inner wall of a guide slot.

[0015] The daughter board and the mother board can be quickly locked and fixed by the locking rod and the locking groove, which not only facilitates the connection but also improves the stability of the connection between the daughter board and the mother board.

[0016] Furthermore, both the daughter board and the mother board are provided with installation marks, and the positions of the two installation marks correspond to each other.

[0017] The above technical solution can avoid errors in the installation of the daughter board and the mother board, thereby improving the yield rate.

[0018] Compared with the prior art, the utility model provides a circuit board that prevents the loss of metallized half-hole rings, and has the following beneficial effects:

[0019] In the utility model, the daughter board and the mother board can be connected and locked by the locking assembly, thereby improving the connection strength between the daughter board and the mother board. When the circuit board is subjected to abnormal vibration during use or transportation, the welding point between the daughter board and the mother board can be prevented from being directly stressed, and the problem of solder joints falling off can be avoided, thereby avoiding the phenomenon of defects in the metallized half-hole ring, thereby improving the stability and durability of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 It is a schematic diagram of the structure of the protective convex strip in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the elastic push piece in the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the oblique chamfer in the utility model;

[0025] Figure 6 This is a schematic diagram of the installation method of the neutron plate and the mother plate of the utility model.

[0026] Among them: 1. Sub-board; 2. Motherboard; 3. Protective reinforcement groove; 4. Metal half-hole groove; 5. Protective convex strip; 6. Guide slide groove; 7. Control lever; 8. Limit groove; 9. Docking column; 10. Locking rod; 11. Locking groove; 12. Elastic push piece; 13. Oblique chamfer; 14. Installation mark. DETAILED DESCRIPTION

[0027] 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.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 5The utility model provides a technical solution: a circuit board for preventing the loss of metallized half-hole rings, comprising a daughter board 1 and a mother board 2, a plurality of protective reinforcement grooves 3 are provided at the edge of the daughter board 1, a plurality of metal half-hole grooves 4 are evenly provided in each protective reinforcement groove 3, a plurality of docking posts 9 are provided at the bottom of the daughter board 1, a plurality of limiting grooves 8 are provided at the top of the mother board 2, and the number of the docking posts 9 and the limiting grooves 8 are equal and correspond one to one;

[0030] The locking assembly is provided with a plurality of locking assemblies, each of which includes a locking rod 10, each locking rod 10 corresponds to a docking column 9, and each locking rod 10 is used to lock and fix the docking column 9 corresponding to the locking rod 10.

[0031] In the utility model, the daughter board 1 and the mother board 2 can be connected and locked by a locking assembly, thereby improving the connection strength between the daughter board 1 and the mother board 2. When the circuit board is subjected to abnormal vibration during use or transportation, the welding point between the daughter board 1 and the mother board 2 can be prevented from being directly stressed, and the problem of solder joints falling off can be avoided, thereby avoiding the occurrence of defects in the metallized half-hole ring, thereby improving the stability and durability of the circuit board.

[0032] See also Figure 1-Figure 2 A protective convex strip 5 is arranged on the side of each protective reinforcement groove 3. By arranging the protective convex strip 5 on the side of the protective reinforcement groove 3, the solder joints at the metal half-hole groove 4 can be protected to avoid scratches and squeezing of the solder joints at the metal half-hole groove 4 during the use or transportation of the circuit board, and further avoid the solder joints from falling off.

[0033] See also Figure 3-Figure 5 Each docking column 9 is slidably matched with the corresponding limiting groove 8, and the outer diameter of each docking column 9 is larger than the inner diameter of the limiting groove 8 corresponding to the docking column 9. Through the sliding cooperation between the docking columns 9 and the corresponding limiting grooves 8, the sub-board 1 can be quickly installed on the motherboard 2, which can play a role in temporarily fixing the sub-board 1. In the subsequent welding process, the position of the sub-board 1 and the motherboard 2 can be avoided from being offset, thereby ensuring the accuracy of welding.

[0034] The locking assembly also includes a plurality of guide slots 6, which are respectively provided on the motherboard 2, and the number of the guide slots 6 and the limit slots 8 are equal and correspond one to one, each guide slot 6 is connected to the corresponding limit slot 8, a locking rod 10 is slidably connected in each guide slot 6, a control lever 7 is provided on the top of each locking rod 10, a locking slot 11 is provided on each docking column 9, an oblique chamfer 13 is provided on the end of each locking rod 10 away from the control lever 7, and an end of each locking rod 10 away from the control lever 7 is snap-fitted with a locking slot 11, and an elastic push sheet 12 is provided on the end of each control lever 7 away from the locking rod 10. The elastic push sheet 12 is made of plastic and is not conductive, and the end of each elastic push sheet 12 away from the control lever 7 is fixedly connected to the inner wall of a guide slot 6.

[0035] It should be noted that through the snap-fit ​​cooperation between the locking rod 10 and the locking groove 11, the daughter board 1 and the mother board 2 can be quickly locked and fixed, which is not only convenient for the connection method but also can improve the stability of the connection between the daughter board 1 and the mother board 2. Specifically, when the daughter board 1 is installed on the mother board 2, the docking column 9 will squeeze the oblique chamfer 13 on the locking rod 10. At this time, the elastic push piece 12 is compressed. As the docking column 9 goes deeper, the elastic push piece 12 will squeeze the locking rod 10 into the locking groove 11 again. At this time, the locking rod 10 will be fixed. When it is necessary to repair or debug the circuit board, you only need to toggle the control lever 7 to separate the locking rod 10 from the locking groove 11. At this time, the daughter board 1 can be quickly separated from the mother board 2.

[0036] Embodiment 2

[0037] See also Figure 6 The difference between this embodiment and the first embodiment is that both the daughter board 1 and the mother board 2 are provided with installation marks 14, and the positions of the two installation marks 14 correspond to each other. By providing two installation marks 14 corresponding to each other, during the assembly process of the daughter board 1 and the mother board 2, installation errors of the daughter board 1 and the mother board 2 can be avoided, thereby improving the yield rate.

[0038] 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 for preventing the loss of metallized half-hole rings, comprising a daughter board (1) and a mother board (2), characterized in that: A plurality of protective reinforcement grooves (3) are provided at the edge of the sub-board (1), and a plurality of metal half-hole grooves (4) are evenly provided in each of the protective reinforcement grooves (3). A plurality of docking posts (9) are provided at the bottom of the sub-board (1), and a plurality of limiting grooves (8) are provided at the top of the motherboard (2), and the number of the docking posts (9) and the limiting grooves (8) are equal and correspond one to one. A locking assembly, wherein a plurality of locking assemblies are provided, each of the locking assemblies comprises a locking rod (10), each of the locking rods (10) corresponds to a docking post (9), and each of the locking rods (10) is used to lock and fix the docking post (9) corresponding to the locking rod (10).

2. A circuit board for preventing the loss of metallized half-hole rings according to claim 1, characterized in that: A protective convex strip (5) is provided on the side of each of the protective reinforcement grooves (3).

3. A circuit board for preventing the loss of metallized half-hole rings according to claim 2, characterized in that: Each docking post (9) is slidably matched with a corresponding limiting groove (8), and the outer diameter of each docking post (9) is greater than the inner diameter of the limiting groove (8) corresponding to the docking post (9).

4. A circuit board for preventing the loss of metallized half-hole rings according to claim 3, characterized in that: The locking assembly also includes a plurality of guide slots (6), wherein the guide slots (6) are respectively arranged on the motherboard (2), and the number of the guide slots (6) and the limiting slots (8) are equal and correspond one to one, and each of the guide slots (6) is connected to the corresponding limiting slot (8).

5. A circuit board for preventing the loss of metallized half-hole rings according to claim 4, characterized in that: A locking rod (10) is slidably connected in each of the guide slide grooves (6), and a control lever (7) is provided on the top of each of the locking rods (10).

6. A circuit board for preventing the loss of metallized half-hole rings according to claim 5, characterized in that: Each docking column (9) is provided with a locking groove (11), one end of each locking rod (10) away from the control lever (7) is provided with an oblique chamfer (13), and one end of each locking rod (10) away from the control lever (7) is engaged with a locking groove (11).

7. A circuit board for preventing the loss of metallized half-hole rings according to claim 6, characterized in that: An elastic push sheet (12) is provided at one end of each control lever (7) away from the locking lever (10), and an end of each elastic push sheet (12) away from the control lever (7) is fixedly connected to the inner wall of a guide slot (6).

8. A circuit board for preventing the loss of metallized half-hole rings according to claim 1, characterized in that: The daughter board (1) and the mother board (2) are both provided with installation marks (14), and the positions of the two installation marks (14) correspond to each other.

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