HDI printed circuit board

Abstract

The utility model discloses an HDI printed circuit board, which comprises a circuit board body and side plates, the side plates are fixedly assembled on two sides of the circuit board body, a group of fixing screws are assembled between four corners of the circuit board body and the side plates, positioning grooves are arranged in the side plates, and a group of mounting plates are embedded outside the positioning grooves in a sliding manner. According to the HDI printed circuit board, the mounting plate, the side plates and the positioning springs are arranged, and when the circuit board body is mounted, positioning grooves in the two sides of the circuit board body are aligned with the mounting plate to be embedded, so that the top ends of the side plates abut against the positioning springs in the mounting plate, and the positioning springs are continuously extruded to the maximum extent; and then four groups of locking structures are respectively and additionally arranged on the mounting plate to fix the circuit board body, and the circuit board body automatically pops up under the action of the positioning spring if disassembly and maintenance are needed and the locking structures are disassembled, so that the functions of auxiliary installation and quick disassembly are realized, and the problem of large workload of disassembly and assembly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of HDI printed circuit boards, in particular to an HDI printed circuit board. Background Art

[0002] High-density interconnect (HDI) printed circuit boards are a key component in modern electronic technology. HDI boards achieve higher circuit density by using fine-line technology and microvia connections, enabling electronic products such as smartphones, tablets, and medical devices to achieve smaller size and stronger functions. As electronic products move towards higher performance and smaller size, the importance of HDI printed circuit boards is becoming increasingly prominent.

[0003] However, traditional HDI printed circuit boards have some defects in installation and maintenance. The installation of most HDI boards relies on screws or other mechanical fasteners, which not only increases the workload of disassembly and assembly, but also increases the difficulty of maintenance and upgrading. In compact electronic devices, using screws to fix circuit boards may lead to space waste and increased assembly complexity. Frequent screw disassembly and assembly may also cause damage to circuit board contact points, reducing the reliability and life of the equipment.

[0004] Therefore, a HDI printed circuit board is needed to solve the above technical defects. Utility Model Content

[0005] The utility model aims to provide an HDI printed circuit board to solve the problem of heavy disassembly and assembly workload mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an HDI printed circuit board, comprising a circuit board body and side panels, side panels are fixedly mounted on both sides of the circuit board body, a group of fixing screws are respectively mounted between the four corners of the circuit board body and the side panels, positioning grooves are respectively arranged in the side panels, a group of mounting plates are slidably engaged with the outside of the positioning grooves, a locking hole is arranged in the mounting plate, a locking structure is installed at the locking hole, a positioning spring is installed at the top end of the mounting plate, and the circuit board body is embedded in the mounting plate and abuts against the positioning spring.

[0007] Preferably, the locking structure includes a clamp, which is clamped on the outside of the mounting plate, an upper pin hole is provided at the top of the clamp, and a side pin hole is provided on the outside of the clamp, an upper pin column and a side pin column are respectively installed in the upper pin hole and the side pin hole, a through hole is provided in the side pin column, the upper pin hole passes through the through hole downward, and the upper pin hole and the locking hole are positioned coincident and are evenly spaced.

[0008] Preferably, two groups of the mounting plates are provided, and the mounting plates are symmetrically distributed about the vertical center line of the circuit board body.

[0009] Preferably, the upper pin and the side pin form an "L"-shaped snap connection, and the upper pin and the side pin are perpendicular to each other.

[0010] Preferably, a vertical piece is welded to the outer side wall of the side pin, and a side spring is fixedly connected between the vertical piece and the clamp.

[0011] Preferably, a transverse piece is welded to one side of the upper pin, and a vertical spring is fixedly connected between the transverse piece and the inner wall of the clamp.

[0012] Preferably, two groups of the clamps are provided at each mounting plate, and the clamps are arranged at both sides of the circuit board body.

[0013] Preferably, an alloy frame is welded to the outer edge of the circuit board body, an insulating groove is provided at the bottom end of the circuit board body, and a flat cable is electrically connected to the bottom end of the circuit board body.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the HDI printed circuit board not only realizes auxiliary installation and quick disassembly, reduces the workload of disassembly and assembly, reduces the parts required for disassembly and assembly, and improves the assembly speed, but also ensures the working stability of the circuit board body;

[0015] By providing a mounting plate, a side plate, and a positioning spring, when the circuit board body is installed, the positioning grooves on both sides thereof are aligned with the mounting plate and embedded, so that the top of the side plate abuts against the positioning spring inside the mounting plate, and the positioning spring is continuously squeezed to the maximum limit, and then four sets of locking structures are respectively installed on the mounting plate to fix the circuit board body, so that the circuit board body can be installed in the mounting plate without screws, and the circuit board body is assembled inside the electrical appliance through the mounting plate. If disassembly and maintenance are required, after the locking structure is disassembled, the circuit board body automatically pops out under the action of the positioning spring, thereby realizing the functions of auxiliary installation and quick disassembly, and reducing the disassembly and assembly workload caused by screw disassembly and assembly;

[0016] By providing a locking structure, an upper pin, an upper pin hole, a side spring, a side pin, a side pin hole, a vertical sheet, a clamp, a through hole, a horizontal sheet, and a vertical spring, the locking structure uses two groups of pins, an upper pin and a side pin, to be installed at the clamp, the side pin is assembled first, and then the upper pin is assembled, the upper pin penetrates inwardly into the through hole to form a clamping connection, so that the two groups of pins will not fall off easily, and the upper pin and the side pin are respectively acted on by the elastic force of the vertical spring and the side spring, when the upper pin and the side pin are removed, the pin will not be lost or fall off due to the existence of the spring, thereby reducing the parts required for disassembly and assembly, and improving the assembly speed;

[0017] By providing a circuit board body, an alloy frame, a cable, and an insulating groove, the alloy frame is welded on the outer edge of the circuit board body, which can increase its own strength during assembly and transportation, prevent damage to the circuit board body due to collision and scratches, and reduce cracks caused by deformation. At the bottom of the circuit board body, the cable extends from the insulating groove to improve the insulation effect, ensure the routing stability, and ensure the working stability of the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the mounting plate of the utility model;

[0020] Figure 3 It is a side cross-sectional schematic diagram of the locking structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the front view structure of the circuit board body of the present utility model.

[0022] In the figure: 1. circuit board body; 2. fixing screws; 3. mounting plate; 4. locking structure; 5. locking hole; 6. positioning slot; 7. side plate; 8. insulation slot; 9. wiring; 10. alloy frame; 11. positioning spring; 401. upper pin column; 402. upper pin hole; 403. side spring; 404. side pin column; 405. side pin hole; 406. vertical piece; 407. clamp; 408. through hole; 409. horizontal piece; 410. vertical spring. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1: Please refer to Figure 1-4 , an HDI printed circuit board, comprising a circuit board body 1 and a side plate 7, the side plates 7 are fixedly mounted on both sides of the circuit board body 1, a set of fixing screws 2 are respectively mounted between the four corners of the circuit board body 1 and the side plates 7, positioning grooves 6 are respectively provided in the side plates 7, a set of mounting plates 3 are slidably engaged with the outside of the positioning grooves 6, a locking hole 5 is provided in the mounting plate 3, a locking structure 4 is installed at the locking hole 5, a positioning spring 11 is installed at the top of the mounting plate 3, the circuit board body 1 is embedded in the mounting plate 3 and abuts against the positioning spring 11, two sets of mounting plates 3 are provided, and the mounting plates 3 are symmetrically distributed about the vertical center line of the circuit board body 1;

[0025] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the circuit board body 1 is installed, the positioning grooves 6 on both sides thereof are aligned with the mounting plate 3 and embedded, so that the top of the side plate 7 abuts against the positioning spring 11 inside the mounting plate 3, and the positioning spring 11 is continuously squeezed to the maximum limit, and then four sets of locking structures 4 are respectively installed on the mounting plate 3 to fix the circuit board body 1. The circuit board body 1 can be installed in the mounting plate 3 without screws, and the circuit board body 1 is assembled inside the electrical appliance through the mounting plate 3. If disassembly and maintenance are required, after the locking structure 4 is disassembled, the circuit board body 1 automatically pops out under the action of the positioning spring 11.

[0026] Embodiment 2: The locking structure 4 includes a clamp 407, which is clamped on the outside of the mounting plate 3. An upper pin hole 402 is formed at the top of the clamp 407, and a side pin hole 405 is formed on the outside of the clamp 407. An upper pin column 401 and a side pin column 404 are respectively installed in the upper pin hole 402 and the side pin hole 405. A through hole 408 is formed in the side pin column 404. The upper pin hole 402 penetrates the through hole 408 downward. The upper pin hole 402 and the lock hole 5 are overlapped and are evenly spaced. The upper pin 401 and the side pin column 404 are respectively installed in the upper pin hole 402 and the side pin hole 405. 01 and the side pin 404 form an "L"-shaped clamping connection, the upper pin 401 and the side pin 404 are perpendicular to each other, a vertical piece 406 is welded to the outer wall of the side pin 404, and a side spring 403 is fixedly connected between the vertical piece 406 and the clamp 407, a horizontal piece 409 is welded to one side of the upper pin 401, and a vertical spring 410 is fixedly connected between the horizontal piece 409 and the inner wall of the clamp 407, and two groups of clamps 407 are respectively provided at the mounting plate 3, and the clamps 407 are arranged on both sides of the circuit board body 1;

[0027] Specifically, Figure 1 and Figure 3 As shown, the locking structure 4 uses two groups of pins, an upper pin 401 and a side pin 404, to be installed at the clamp 407. The side pin 404 is assembled first, and then the upper pin 401 is assembled. The upper pin 401 penetrates inwardly into the through hole 408 to form a clamping connection, so that the two groups of pins will not fall off easily. The upper pin 401 and the side pin 404 are respectively acted upon by the elastic force of the vertical spring 410 and the side spring 403. When the upper pin 401 and the side pin 404 are removed, the pins will not be lost or fall off due to the presence of the springs.

[0028] Embodiment 3: An alloy frame 10 is welded to the outer edge of the circuit board body 1, an insulating groove 8 is provided at the bottom of the circuit board body 1, and a flat cable 9 is electrically connected to the bottom of the circuit board body 1;

[0029] Specifically, Figure 1 and Figure 4As shown, an alloy frame 10 is welded to the outer edge of the circuit board body 1, which can increase its own strength during assembly and transportation, prevent damage to the circuit board body 1 due to collision and scratches, and reduce cracks caused by deformation. At the bottom of the circuit board body 1, the cable 9 extends from the insulation groove 8 to improve the insulation effect and ensure the routing stability.

[0030] Working principle: When the circuit board body 1 is installed, the positioning grooves 6 on both sides thereof are aligned with the mounting plate 3 and embedded therein, so that the top of the side plate 7 abuts against the positioning spring 11 inside the mounting plate 3, and the positioning spring 11 is continuously squeezed to the maximum limit, and then four sets of locking structures 4 are respectively installed on the mounting plate 3 to fix the circuit board body 1. The locking structure 4 uses two sets of pins, an upper pin 401 and a side pin 404, to be installed at the clamp 407. The side pin 404 is assembled first, and then the upper pin 401 is assembled. The upper pin 401 penetrates the through hole 408 inwardly to form a snap connection, so that the two sets of pins will not fall off easily, and the upper pin 401 and the side pin 404 are respectively acted upon by the elastic force of the vertical spring 410 and the side spring 403. If disassembly and maintenance are required, after the locking structure 4 is disassembled, the circuit board body 1 automatically pops out under the action of the positioning spring 11.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An HDI printed circuit board, comprising a circuit board body (1) and a side plate (7), characterized in that: Side panels (7) are fixedly mounted on both sides of the circuit board body (1); a group of fixing screws (2) are respectively mounted between the four corners of the circuit board body (1) and the side panels (7); positioning grooves (6) are respectively provided in the side panels (7); a group of mounting plates (3) are slidably engaged with the outsides of the positioning grooves (6); a locking hole (5) is provided in the mounting plate (3); a locking structure (4) is installed at the locking hole (5); a positioning spring (11) is installed at the top end of the mounting plate (3); the circuit board body (1) is embedded in the mounting plate (3) and abuts against the positioning spring (11).

2. The HDI printed circuit board according to claim 1, characterized in that: The locking structure (4) comprises a clamp (407), wherein the clamp (407) is clamped to the outside of the mounting plate (3), an upper pin hole (402) is formed at the top of the clamp (407), and a side pin hole (405) is formed at the outside of the clamp (407), an upper pin column (401) and a side pin column (404) are respectively mounted in the upper pin hole (402) and the side pin hole (405), a through hole (408) is formed in the side pin column (404), the upper pin hole (402) passes through the through hole (408) downwardly, and the upper pin hole (402) and the locking hole (5) are overlapped in position and are distributed at equal intervals.

3. The HDI printed circuit board according to claim 1, characterized in that: Two groups of the mounting plates (3) are provided, and the mounting plates (3) are symmetrically distributed about a vertical center line of the circuit board body (1).

4. The HDI printed circuit board according to claim 2, characterized in that: The upper pin (401) and the side pin (404) form an "L"-shaped clamping connection, and the upper pin (401) and the side pin (404) are perpendicular to each other.

5. The HDI printed circuit board according to claim 2, characterized in that: A vertical sheet (406) is welded to the outer side wall of the side pin column (404), and a side spring (403) is fixedly connected between the vertical sheet (406) and the clamp (407).

6. The HDI printed circuit board according to claim 2, characterized in that: A transverse piece (409) is welded to one side of the upper pin (401), and a vertical spring (410) is fixedly connected between the transverse piece (409) and the inner wall of the clamp (407).

7. The HDI printed circuit board according to claim 2, characterized in that: Two groups of clamps (407) are provided at each mounting plate (3), and the clamps (407) are arranged on both sides of the circuit board body (1).

8. The HDI printed circuit board according to claim 1, characterized in that: An alloy frame (10) is welded to the outer edge of the circuit board body (1), an insulating groove (8) is provided at the bottom end of the circuit board body (1), and a flat cable (9) is electrically connected to the bottom end of the circuit board body (1).

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