Circuit board and clamping structure thereof

Abstract

The utility model discloses a circuit board and a clamping structure thereof, relates to the field of circuit boards, and is characterized in that the circuit board comprises a board body, two opposite side walls of the board body are provided with positioning grooves, vertical projections of the positioning grooves are semicircular, and the number of the positioning grooves is greater than or equal to three. The connecting strength between the limiting block and the plate body is improved through the embedded structure, the plate body is guaranteed not to move in the length direction of the plate body, the pressure of the limiting block on the plate body can be reduced, bending or edge damage of the plate body can be avoided, and compared with contact with seamed edges, the connecting strength of the limiting block and the plate body is improved. The damage caused by stress concentration is reduced through curved surface contact between the side walls of the positioning grooves and the side walls of the limiting blocks, the surface of the plate body is coated with the POM coating, and the surface strength of the plate body is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit boards, and more specifically, to a circuit board and its clamping structure. Background Technology

[0002] A circuit board is an electronic device used to carry and connect different electronic components. In the process of manufacturing a circuit board, there are many steps such as drilling and soldering. These steps often require clamping the circuit board. The existing clamping method is generally accomplished by a fixed block and a movable block. The movable block and the fixed block are close to each other to clamp the circuit board in the middle. However, in order to limit the sliding of the circuit board between the fixed block and the movable block, a large pressure needs to be applied to the circuit board to ensure friction, which may cause damage to the edge of the circuit board or bending of the circuit board, affecting the use of the circuit board. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a circuit board and its clamping structure.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a circuit board, including a board body, wherein positioning grooves are provided on both opposite side walls of the board body, the vertical projection of the positioning grooves is semi-circular, and the number of positioning grooves is greater than or equal to three.

[0005] The present invention is further configured such that the number of positioning grooves on one side of the plate is greater than the number of positioning grooves on the other side of the plate.

[0006] The present invention is further configured such that the width of one end of the plate is smaller than the width of the other end of the plate.

[0007] A circuit board clamping structure is applied to the aforementioned circuit board, including support frames located on both sides of the board body, wherein a limiting block that mates with a positioning groove is slidably connected on the support frame, and one end of the limiting block forms a curved surface that mates with the positioning groove.

[0008] The present invention is further configured such that: a guide rail is fixedly connected to the top surface of the support frame, and the two sides of the plate are slidably connected to the two guide rails respectively, and a slot for the limiting block to be embedded is opened on the side of the guide rail away from the plate.

[0009] The present invention is further configured such that: an elastic filling block is provided on the side of the limiting block away from the plate body, the elastic filling block is embedded in the support frame, and the elastic filling block abuts against the limiting block.

[0010] In summary, this utility model has the following beneficial effects: the interlocking structure increases the connection strength between the limiting block and the plate, thereby ensuring that the plate cannot move along its own length direction, reducing the pressure of the limiting block on the plate, and preventing the plate from bending or being damaged at the edges. Compared with edge-shaped contact, the curved surface contact between the sidewall of the positioning groove and the sidewall of the limiting block reduces the damage caused by stress concentration. The surface of the plate is coated with a POM coating, which improves the surface strength of the plate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the circuit board structure in this utility model;

[0012] Figure 2 This is a schematic diagram of the support frame structure in this utility model. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the support frame structure in this utility model. Figure 2 ;

[0014] Figure 4 This is a schematic diagram of the circuit board and support frame in this utility model.

[0015] In the diagram: 1. Plate; 2. Positioning groove; 3. Support frame; 4. Limiting block; 5. Guide rail; 6. Groove; 7. Elastic filling block. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Example 1: A circuit board, such as Figure 1 , Figure 4 As shown, the plate includes a plate body 1. Positioning grooves 2 are provided on both opposite side walls of the plate body 1. The vertical projection of the positioning grooves 2 is semi-circular. The number of positioning grooves 2 is greater than or equal to three. The number of positioning grooves 2 on one side of the plate body 1 is greater than the number of positioning grooves 2 on the other side of the plate body 1. The width of one end of the plate body 1 is less than the width of the other end of the plate body 1.

[0018] Specifically, two positioning grooves 2 are opened on one side of the board body 1, and one positioning groove 2 is opened on the other side of the board body 1. The limiting block 4 is embedded in the positioning groove 2. The interlocking structure increases the connection strength between the limiting block 4 and the board body 1, thereby ensuring that the board body 1 cannot move along its own length direction. This can reduce the pressure of the limiting block 4 on the board body 1 and prevent the board body 1 from bending or being damaged at the edges. The asymmetrical distribution of the positioning grooves 2 on both sides of the board body 1 plays a role in preventing mistaken identity and preventing the circuit board from being installed backwards. One end of the circuit board forms two 45° angles, which guide the board body 1 into the guide rail 5 and facilitate the board body 1 to enter the guide rail 5. The surface of the board body 1 is coated with a POM coating, which improves the surface strength of the board body 1.

[0019] Example 2: A circuit board clamping structure, such as Figures 1-4 As shown, the circuit board applied above includes support frames 3 located on both sides of the board body 1. A limiting block 4 that cooperates with the positioning groove 2 is slidably connected on the support frame 3. One end of the limiting block 4 forms a curved surface that cooperates with the positioning groove 2.

[0020] Specifically, the thickness of the support frame 3 is greater than the thickness of the board 1, ensuring that there is space for the pins of electronic components on the circuit board. The support frame 3 is provided with a sliding groove, and the limiting block 4 slides in the sliding groove. The number of limiting blocks 4 and the number of sliding grooves are the same as the number of positioning grooves 2. Compared with edge contact, the curved surface contact between the side wall of the positioning groove 2 and the side wall of the limiting block 4 reduces the damage caused by stress concentration.

[0021] like Figures 1-4 As shown, a guide rail 5 is fixedly connected to the top surface of the support frame 3. The two sides of the plate 1 are slidably connected to the two guide rails 5 respectively. The guide rail 5 has a slot 6 for the limiting block 4 to be embedded on the side away from the plate 1. Specifically, the cross section of the guide rail 5 is U-shaped. The guide rail 5 restricts the movement of the plate 1 in the vertical direction. The number of slots 6 is the same as the number of limiting blocks 4. The limiting block 4 passes through the slot 6, passes through the guide rail 5, and contacts the plate 1.

[0022] like Figures 1-4 As shown, an elastic filling block 7 is provided on the side of the limiting block 4 away from the plate 1. The elastic filling block 7 is embedded in the support frame 3 and abuts against the limiting block 4. Specifically, the elastic filling block 7 is made of rubber. The elastic filling block 7 squeezes the limiting block 4, so that the limiting block 4 has the function of automatic reset. When the circuit board is disassembled or installed, the elastic filling block 7 is squeezed to provide space for the limiting block 4 to slide.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A circuit board, comprising a board body (1), characterized in that: The plate (1) has positioning grooves (2) on its two opposite side walls. The vertical projection of the positioning grooves (2) is semi-circular, and the number of positioning grooves (2) is greater than or equal to three.

2. The circuit board according to claim 1, characterized in that: The number of positioning grooves (2) on one side of the plate (1) is greater than the number of positioning grooves (2) on the other side of the plate (1).

3. The circuit board according to claim 1, characterized in that: The width of one end of the plate (1) is smaller than the width of the other end of the plate (1).

4. A circuit board clamping structure, applied to the circuit board as described in any one of claims 1-3, characterized in that: Includes support frames (3) located on both sides of the plate (1), and a limiting block (4) that cooperates with the positioning groove (2) is slidably connected on the support frame (3). One end of the limiting block (4) forms a curved surface that cooperates with the positioning groove (2).

5. The circuit board clamping structure according to claim 4, characterized in that: The top surface of the support frame (3) is fixedly connected with guide rails (5), and the two sides of the plate (1) are slidably connected in the two guide rails (5). The guide rails (5) are provided with slots (6) for the limiting block (4) to be embedded on the side away from the plate (1).

6. The circuit board clamping structure according to claim 4, characterized in that: The limiting block (4) has an elastic filling block (7) on the side away from the plate (1). The elastic filling block (7) is embedded in the support frame (3) and abuts against the limiting block (4).

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