Power supply printed circuit board with blind buried holes

Abstract

The utility model discloses a power supply printed circuit board with blind buried holes, which comprises a circuit board body, a storage box for storing the circuit board body, and a sealing plate for sealing the storage box, and a storage groove for storing the circuit board body is arranged in the storage box. A group of clamping pieces for clamping and fixing the circuit board body are symmetrically and movably connected to the interior of the storage groove, the sealing plate is arranged in a concave shape and connected to the upper end of the storage box, and the front side and the rear side of the sealing plate make contact with the outer walls of the front side and the rear side of the storage box. According to the utility model, the problems that the printed circuit board is usually exposed in the air, the circuit board is easily contaminated by dust after being exposed for a long time, and the working efficiency of the printed circuit board is directly influenced by dust accumulation are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit boards, and particularly relates to a power supply printed circuit board with blind buried vias. Background Art

[0002] A printed circuit board, also known as a printed wiring board or printed circuit board, is a support for electronic components, in which there are metal conductors as circuits connecting electronic components. Traditional circuit boards use the method of printing and etching resistants to make circuit lines and patterns, so they are called printed circuit boards or printed wiring boards.

[0003] For example, in the Chinese patent with the application number 201721890146.3, the utility model discloses a printed circuit board with blind vias and buried vias, including: a printed circuit board substrate, several circuit board blind vias are provided in the middle of the inner layer circuit board, a second semi-cured board is provided below the inner layer board, a protective installation frame, several heat dissipation holes are provided in the middle of the protective installation frame, a circuit board through hole, and through hole connectors are respectively provided at the upper and lower ends of the circuit board through hole; an inner layer circuit board is provided below the component installation surface, an inner layer board is provided below the first semi-cured board, a second semi-cured board is provided below the inner layer board, and a bottom circuit layer is provided below the second semi-cured board. The production is simpler and more convenient. Installation fixing parts are provided outside the protective installation frame, which is convenient for the installation and use of the printed circuit board with blind vias and buried vias. Several heat dissipation holes are provided in the middle of the protective installation frame, and heat dissipation treatment can be carried out. A conductive metal foil layer is provided in the middle of the circuit board through hole, which can enhance the use performance of the printed circuit board with blind vias and buried vias.

[0004] However, there are some problems in the prior art: printed circuit boards are relatively common parts, and common printed circuit boards are usually exposed to the air. The circuit board is easily contaminated with dust when exposed for a long time, and the accumulation of dust will directly affect the working efficiency of the printed circuit board. Therefore, it is necessary to improve the above patent problems to meet the market demand. Therefore, we propose a power supply printed circuit board with blind buried vias. Summary of the Utility Model

[0005] Aiming at the problems existing in the above technology, the utility model provides a power supply printed circuit board with blind buried vias, which has the advantages of installing the circuit board body inside a storage box, using two movable clamping parts to facilitate clamping and fixing according to the size of the circuit board body, using a sealing plate to seal the storage box, avoiding dust accumulation on the surface of the circuit board body and affecting the normal use of the circuit board body, and having a simple installation structure and convenient use. It solves the problem that printed circuit boards are usually exposed to the air, the circuit board is easily contaminated with dust when exposed for a long time, and the accumulation of dust will directly affect the working efficiency of the printed circuit board.

[0006] The present utility model is realized as follows. A power supply printed circuit board with blind buried vias includes a circuit board body, a storage box for storing the circuit board body, and a sealing plate for sealing the storage box. A storage groove for storing the circuit board body is provided inside the storage box. A set of clamping members for clamping and fixing the circuit board body are symmetrically and movably connected inside the storage groove. The sealing plate is arranged in a concave shape. The sealing plate is connected to the upper end of the storage box, and the front and rear sides of the sealing plate are in contact with the outer walls of the front and rear sides of the storage box.

[0007] Preferably, the inner wall of the storage box is symmetrically provided with chutes arranged in a T-shaped cross-section. The chutes are located at the lower end of the storage groove and communicate with each other. A fixed shaft is fixedly connected inside the chutes. Two sliding seats having the same shape as the chutes are sleeved on the outer wall of the fixed shaft.

[0008] Preferably, springs are connected to the outer walls of the opposite sides between the sliding seats. The other ends of the springs are in contact with the inner wall of the storage box, and the springs are sleeved on the outer wall of the fixed shaft.

[0009] Preferably, the clamping members are arranged in a concave shape. The recessed end faces between the clamping members correspond to each other. A set of first threaded holes are provided on the upper end faces of the clamping members. The first threaded holes communicate with the grooves formed by the recessed end faces of the clamping members. The lower ends of the clamping members are fixedly connected to the sliding seats.

[0010] Preferably, a positioning member for positioning the circuit board body is provided inside the first threaded holes. The positioning member includes a screw shaft arranged in the first threaded holes. The screw shaft is threadedly connected to the first threaded holes. The upper and lower ends of the screw shaft respectively extend to the outside of the upper end of the clamping members and the inside of the grooves formed by the recessed end faces of the clamping members. A rotating block and a pressing pad are respectively connected to the upper and lower ends of the screw shaft.

[0011] Preferably, a plurality of second threaded holes are provided on the outer walls of the front and rear sides of the storage box.

[0012] Preferably, a plurality of heat dissipation holes are provided through the upper end face of the sealing plate. A plurality of through holes are provided through the outer walls of the front and rear sides of the sealing plate. The through holes correspond to the second threaded holes. Bolts are provided inside the through holes. The bolts pass through the through holes and are threadedly connected to the second threaded holes. The sealing plate is fixedly connected to the storage box through the cooperation of the bolts and the second threaded holes.

[0013] Compared with the prior art, the present utility model provides a power supply printed circuit board with blind buried vias, and has the following beneficial effects:

[0014] 1. In the present utility model, the circuit board body is installed inside the storage box. Two movable clamping members are used to facilitate clamping and fixing according to the size of the circuit board body. A sealing plate is used to seal the storage box to prevent dust from accumulating on the surface of the circuit board body and affecting the normal use of the circuit board body.

[0015] 2. During the installation of the circuit board body in the present utility model, the circuit board body extends into the recessed end face of the clamping member and contacts the clamping member. Under the influence of the force on the clamping member, the sliding seat is driven to move on the fixed shaft, and the fixed shaft drives the spring to extend, thereby adjusting the distance between the clamping members to facilitate the installation of circuit board bodies of different sizes. When both ends of the circuit board body are located inside the recessed end face of the clamping member, the clamping member, without being restricted by force, drives the sliding seat to move on the fixed shaft through the spring rebound. The movement of the sliding seat drives the clamping members to move in opposite directions to clamp and fix the circuit board body.

[0016] 3. After the two clamping members clamp and fix the circuit board body in the present utility model, the rotating block rotates to drive the screw shaft to rotate inside the threaded hole, so that the threaded shaft drives the pressing pad to move downward and contact the circuit board body to press and fix the circuit board body, preventing the circuit board body from moving inside the clamping member during use and affecting the use effect of the circuit board body.

[0017] 4. In the present utility model, through the heat dissipation holes, when the circuit board body is in use, the generated hot air is discharged to the outside of the storage box through the heat dissipation holes, ensuring the air circulation inside the storage box, achieving the heat dissipation effect, and improving the service life of the circuit board body. And through the connection of the bolt and the second threaded hole, it is convenient to disassemble and install the sealing plate and the storage box, facilitating the disassembly and assembly of the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the installation structure of the circuit board body provided by an embodiment of the present utility model;

[0019] Figure 2 is a schematic diagram of the assembled structure provided by an embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of the top view cross-section of the storage box provided by an embodiment of the present utility model;

[0021] Figure 4 is a schematic diagram of the side view cross-section of the storage box provided by an embodiment of the present utility model;

[0022] Figure 5 is a schematic diagram of the cross-section of the clamping member provided by an embodiment of the present utility model.

[0023] In the figure: 1, sealing plate; 2, circuit board body; 3, storage box; 4, clamping member; 5, positioning member; 11, heat dissipation hole; 12, through hole; 13, bolt; 31, storage groove; 32, sliding groove; 33, fixed shaft; 34, sliding seat; 35, spring; 36, second threaded hole; 41, first threaded hole; 51, screw shaft; 52, rotating block; 53, pressing pad. Detailed implementation mode

[0024] In order to further understand the content, features and effects of the present utility model, the following embodiments are cited and described in detail in conjunction with the accompanying drawings.

[0025] The structure of the present utility model will be described in detail below in conjunction with the accompanying drawings. Embodiment 1

[0026] As Figure 1 and Figure 2 shown, a power printed circuit board with blind buried vias provided by an embodiment of the present utility model includes a circuit board body 2, a storage box 3 for storing the circuit board body 2, and a sealing plate 1 for sealing the storage box 3. A storage groove 31 for storing the circuit board body 2 is provided inside the storage box 3. A group of clamping members 4 for clamping and fixing the circuit board body 2 are symmetrically and movably connected inside the storage groove 31. The sealing plate 1 is arranged in a concave shape. The sealing plate 1 is connected to the upper end of the storage box 3, and the front and rear sides of the sealing plate 1 are in contact with the outer walls of the front and rear sides of the storage box 3. By installing the circuit board body 2 inside the storage box 3, the two movable clamping members 4 are used to facilitate clamping and fixing according to the size of the circuit board body 2, and the sealing plate 1 is used to seal the storage box 3 to prevent dust from accumulating on the surface of the circuit board body 2 and affecting the normal use of the circuit board body 2.

[0027] As Figures 3 to 4As shown in the figure, the inner wall of the storage box 3 is symmetrically provided with sliding grooves 32 arranged in a T-shaped cross-section. The sliding grooves 32 are located at the lower end of the storage groove 31 and are connected. A fixed shaft 33 is fixedly connected inside the sliding grooves 32. Two sliding seats 34 having the same shape as the sliding grooves 32 are sleeved on the outer wall of the fixed shaft 33. On the opposite outer walls of the sliding seats 34, springs 35 are connected. The other ends of the springs 35 are in contact with the inner wall of the storage box 3, and the springs 35 are sleeved on the outer wall of the fixed shaft 33. The clamping members 4 are arranged in a concave shape. The concave ends of the clamping members 4 correspond to each other. A set of first threaded holes 41 are provided on the upper end surface of the clamping members 4. The first threaded holes 41 communicate with the grooves formed by the concave end surfaces of the clamping members 4. The lower ends of the clamping members 4 are fixedly connected to the sliding seats 34. During the installation of the circuit board body 2, the circuit board body 2 extends into the concave end surface of the clamping members 4 and contacts the clamping members 4. Under the influence of the force, the clamping members 4 drive the sliding seats 34 to move on the fixed shaft 33, and the fixed shaft 33 drives the springs 35 to extend, so as to adjust the distance between the clamping members 4 and facilitate the installation of circuit board bodies 2 of different sizes. When both ends of the circuit board body 2 are located inside the concave end surfaces of the clamping members 4, the clamping members 4 are not restricted by force, and thus the springs 35 rebound, driving the sliding seats 34 to move on the fixed shaft 33. The movement of the sliding seats 34 drives the clamping members 4 to move in opposite directions to clamp and fix the circuit board body 2.

[0028] As Figure 5 shown, a positioning member 5 for positioning the circuit board body 2 is provided inside the first threaded hole 41. The positioning member 5 includes a screw shaft 51 provided in the first threaded hole 41. The screw shaft 51 is threadedly connected to the first threaded hole 41. The upper and lower ends of the screw shaft 51 respectively extend to the outside of the upper end of the clamping member 4 and the inside of the groove formed by the concave end surface of the clamping member 4. A rotating block 52 and a pressing pad 53 are respectively connected to the upper and lower ends of the screw shaft 51. After the two clamping members 4 clamp and fix the circuit board body 2, the rotating block 52 rotates to drive the screw shaft 51 to rotate inside the threaded hole, so that the threaded shaft drives the pressing pad 53 to move downward and contact the circuit board body 2 to press and fix the circuit board body 2, avoiding the movement of the circuit board body 2 inside the clamping members 4 during use and affecting the use effect of the circuit board body 2.

[0029] As Figure 1As shown, a plurality of second threaded holes 36 are provided on the outer walls of the front and rear sides of the storage box 3; a plurality of heat dissipation holes 11 are provided through the upper end surface of the sealing plate 1, and a plurality of through holes 12 are provided through the outer walls of the front and rear sides of the sealing plate 1. The through holes 12 correspond to the second threaded holes 36. A bolt 13 is provided inside the through hole 12. The bolt 13 passes through the through hole 12 and is threadedly connected to the second threaded hole 36. The sealing plate 1 is fixedly connected to the storage box 3 through the cooperation of the bolt 13 and the second threaded hole 36. Through the heat dissipation holes 11, when the circuit board body 2 is in use, the generated hot air is discharged to the outside of the storage box 3 through the heat dissipation holes 11, ensuring the air circulation inside the storage box 3, achieving the effect of heat dissipation, improving the service life of the circuit board body 2, and through the connection of the bolt 13 and the second threaded hole 36, it is convenient to disassemble and install between the sealing plate 1 and the storage box 3, and it is convenient to disassemble and install the circuit board body 2.

[0030] Working principle of Embodiment 1:

[0031] During use, first insert the circuit board body 2 into the recessed end face of the clamping member 4 and contact the clamping member 4. Under the influence of force, the clamping member 4 drives the sliding seat 34 to move on the fixed shaft 33, and the fixed shaft 33 drives the spring 35 to extend, thereby adjusting the distance between the clamping members 4 to facilitate the installation of circuit board bodies 2 of different sizes. When both ends of the circuit board body 2 are located inside the recessed end faces of the clamping members 4, the clamping members 4 are not restricted by force, and thus rebound through the spring 35, driving the sliding seat 34 to move on the fixed shaft 33. The movement of the sliding seat 34 drives the clamping members 4 to move in opposite directions to clamp and fix the circuit board body 2. Then connect the sealing plate 1 to the upper end of the storage box 3. Both sides of the sealing plate 1 are located outside the storage box 3, and the through holes 12 correspond to the second threaded holes 36. The sealing plate 1 is fixedly connected to the upper end of the storage box 3 by passing the bolt 13 through and threadedly connecting it to the second threaded hole 36.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power printed circuit board with blind buried vias, comprising a circuit board body (2), a storage box (3) for storing the circuit board body (2), and a sealing plate (1) for sealing the storage box (3), characterized in that: The storage box (3) is provided with a storage groove (31) for storing the circuit board body (2), and a group of clamping members (4) for clamping and fixing the circuit board body (2) are symmetrically and movably connected inside the storage groove (31). The sealing plate (1) is arranged in a concave shape, and the sealing plate (1) is connected to the upper end of the storage box (3), and the front and rear sides of the sealing plate (1) are in contact with the front and rear outer walls of the storage box (3).

2. A power printed circuit board with blind and buried vias as claimed in claim 1, characterized in that: The inner wall of the storage box (3) is symmetrically provided with a slide groove (32) with a T-shaped cross section, the slide groove (32) is located at the lower end of the storage groove (31) and is connected, a fixed shaft (33) is fixedly connected inside the slide groove (32), and the outer wall of the fixed shaft (33) is sleeved with two slide seats (34) with the same shape as the slide groove (32).

3. A power printed circuit board with blind and buried vias as claimed in claim 2, characterized in that: The outer walls on the opposite sides of the slide seats (34) are connected to springs (35), the other ends of the springs (35) are in contact with the inner wall of the storage box (3), and the springs (35) are sleeved on the outer wall of the fixed shaft (33).

4. A power printed circuit board with blind and buried vias as claimed in claim 2, characterized in that: The clamping members (4) are arranged in a concave shape, and the concave end faces of the clamping members (4) correspond to each other. The upper end faces of the clamping members (4) are provided with a group of first threaded holes (41), and the first threaded holes (41) are communicated with the grooves formed by the concave end faces of the clamping members (4). The lower ends of the clamping members (4) are fixedly connected to the slide seat (34).

5. A power printed circuit board with blind and buried vias as claimed in claim 4, characterized in that: A positioning member (5) for positioning the circuit board body (2) is provided inside the first threaded hole (41), the positioning member (5) comprising a screw shaft (51) provided in the first threaded hole (41), the screw shaft (51) being threadedly connected to the first threaded hole (41), the upper and lower ends of the screw shaft (51) respectively extending to the outside of the upper end of the clamping member (4) and the inside of a groove formed by a recessed end surface of the clamping member (4), the upper and lower ends of the screw shaft (51) respectively being connected to a rotating block (52) and a pressing pad (53).

6. A power printed circuit board with blind and buried vias as claimed in claim 1, characterized in that: The outer walls on both the front and rear sides of the storage box (3) are provided with a plurality of second threaded holes (36).

7. A power printed circuit board with blind and buried vias as claimed in claim 6, characterized in that: The upper end surface of the sealing plate (1) is penetrated by a plurality of heat dissipation holes (11); the outer walls on both the front and rear sides of the sealing plate (1) are penetrated by a plurality of through holes (12); the through holes (12) correspond to the second threaded holes (36); bolts (13) are provided inside the through holes (12); the bolts (13) penetrate the through holes (12) and are threadedly connected to the second threaded holes (36); the sealing plate (1) is fixedly connected to the storage box (3) by the cooperation of the bolts (13) and the second threaded holes (36).

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