CN218772542U

CN218772542U - PCB circuit board with blind via hole

Info

Publication number: CN218772542U
Application number: CN202222960191.9U
Authority: CN
Inventors: 李华军; 郑元刚; 黄圆
Original assignee: Shenzhen Hezhong Precision Electronics Co ltd
Current assignee: Shenzhen Hezhong Precision Electronics Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-28
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a PCB circuit board with blind via hole, which comprises a vertical plate, the riser is provided with two and is bilateral symmetry and distributes, two the draw-in groove has been seted up to the one end that the riser is close to each other, two the lower wall of draw-in groove all is provided with the rubber pad, two PCB circuit board main part is installed jointly to the upper end of rubber pad, the louvre has been seted up to the upper end left part of PCB circuit board main part, the blind hole has been seted up to the upper end right part of PCB circuit board main part, the via hole has been seted up at the upper end rear portion of PCB circuit board main part. A PCB circuit board with blind via hole, avoided the dust adhesion on the radiating hole inner wall through setting up the common cooperation of heat dissipation post and heat conduction anticorrosive coating, guaranteed the normal heat dissipation of circuit board, can accelerate the thermal discharge near the louvre through setting up auxiliary component, avoid the hot-air to pile up in the radiating hole, further improve the radiating efficiency.

Description

PCB circuit board with blind via hole

Technical Field

The utility model relates to a PCB circuit board technical field, in particular to PCB circuit board with blind via hole.

Background

The PCB circuit board, also called as a printed circuit board, is a provider of electrical connection of electronic components, has been developed for more than 100 years, is mainly designed in a domain, and has the main advantages of greatly reducing errors of wiring and assembly and improving the automation level and the production labor rate by adopting the circuit board; the printed circuit board, also called printed circuit board, short printed board, uses insulating board as base material, and is cut into a certain size, on which at least one conductive pattern is attached, and on which holes (for example element hole, fastening hole and metallized hole) are distributed, so that it can be used for replacing chassis of electronic component of existent equipment and can implement interconnection of electronic component.

The prior art (publication number: CN 208300116U) discloses a heat dissipation type PCB circuit board, which comprises a circuit board body, wherein two side edges of the circuit board body are respectively provided with a row of heat dissipation holes, and insulating glue is coated in the heat dissipation holes; the circuit board body includes that top-down sets gradually: the heat dissipation structure comprises a heat dissipation layer, a first circuit board layer, a first bonding layer, a second circuit board layer, a second bonding layer and a third circuit board layer, wherein each heat dissipation hole penetrates through the heat dissipation layer, the first circuit board layer, the first bonding layer, the second circuit board layer, the second bonding layer and the third circuit board layer; the bottom parts of the first circuit board layer, the second circuit board layer and the third circuit board layer are provided with a plurality of protrusions extending downwards to form uneven bottom surfaces;

although the above patent improves heat dissipation performance, there is a drawback that the circuit board forms a heat dissipation channel by forming heat dissipation holes, so that heat emitted from each layer of circuit board is discharged through the heat dissipation channel, and after a long time, dust is easily adhered to the inner wall of the heat dissipation holes, which causes blocking of the heat dissipation holes, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a PCB circuit board with blind via holes, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a PCB circuit board with blind via hole, includes the riser, the riser is provided with two and is bilateral symmetry and distributes, two the draw-in groove has been seted up to the one end that the riser is close to each other, two the lower wall of draw-in groove all is provided with the rubber pad, two PCB circuit board main part is installed jointly to the upper end of rubber pad, the louvre has been seted up to the upper end left part of PCB circuit board main part, the blind hole has been seted up to the upper end right part of PCB circuit board main part, the via hole has been seted up at the upper end rear portion of PCB circuit board main part, be connected with the heat dissipation post through heat-conducting adhesive in the louvre, the inner wall coating of heat dissipation post has heat conduction anticorrosive coating, two the diaphragm is installed to the one end that the riser was kept away from each other, the left side auxiliary component is installed to the upper end of diaphragm.

Preferably, the auxiliary component includes miniature air pump, miniature air pump is installed in the left side the upper end of diaphragm, the exhaust end of miniature air pump is connected with the connecting pipe, hollow core plate is all connected to the left end and the right-hand member of connecting pipe, the through-hole has been seted up to hollow core plate's lower extreme.

Preferably, two cross rods are installed between the vertical plates, and the hollow plate is installed between the two cross rods.

Preferably, the through hole is located above the heat dissipation hole.

Preferably, the four corners of the upper end of the PCB main body are provided with mounting holes.

Preferably, the upper end threads of the vertical plates are connected with screws in a threaded manner, and the lower ends of the screws sequentially penetrate through the mounting holes and the rubber pads.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model relates to a PCB circuit board with blind via hole has avoided the dust adhesion on the radiating hole inner wall through setting up heat dissipation post and heat conduction anticorrosive coating and cooperating jointly, and during the use, heat conduction anticorrosive coating has certain self-cleaning nature and hydrophobicity, has reduced the area of contact of dust and heat dissipation post inner wall, has avoided the dust to block up the louvre, and heat conduction anticorrosive coating can improve heat dissipation post thermal emissivity simultaneously, accelerates the heat dissipation post to lead out and distribute the heat near the louvre, has guaranteed the normal heat dissipation of circuit board;

2. the utility model relates to a PCB circuit board with blind via hole can accelerate near the thermal discharge of louvre through setting up auxiliary component, during the use, opens the power of miniature air pump, and the exhaust end of miniature air pump passes through the connecting pipe with gas and carries hollow slab in, then discharges from the through-hole, blows to in the louvre for the air flow rate in the louvre avoids the hot-air to pile up in the louvre, further improves the radiating efficiency.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a PCB circuit board with blind via holes according to the present invention;

fig. 2 is a schematic view of an overall structure of a PCB main body of a PCB having a blind via hole according to the present invention;

fig. 3 is a schematic view of an overall structure of a heat dissipation pillar of a PCB having blind via holes of the present invention;

fig. 4 is a schematic diagram of an overall structure of an auxiliary component of a PCB circuit board with blind via holes according to the present invention.

In the figure: 1. a vertical plate; 2. a card slot; 3. a PCB circuit board main body; 4. a rubber pad; 5. a screw; 6. a cross bar; 7. a transverse plate; 8. an auxiliary component; 9. mounting holes; 10. a via hole; 11. blind holes; 12. heat dissipation holes; 13. a heat-dissipating column; 14. a heat conductive corrosion resistant coating; 81. a miniature air pump; 82. a connecting pipe; 83. a hollow slab; 84. and a through hole.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a PCB circuit board with blind via hole, including risers 1, risers 1 are provided with two and are bilateral symmetry distribution, two risers 1 are close to each other one end has been seted up the draw-in groove 2, the lower wall of two draw-in grooves 2 all is provided with rubber pad 4, PCB circuit board main part 3 is installed jointly to the upper end of two rubber pads 4, louvre 12 has been seted up to the upper end left part of PCB circuit board main part 3, louvre 12 is provided with a plurality of, blind hole 11 has been seted up to the upper end right part of PCB circuit board main part 3, blind hole 11 is provided with a plurality of, via hole 10 has been seted up to the upper end rear portion of PCB circuit board main part 3, via hole 10 is provided with a plurality of, be connected with heat dissipation post 13 through heat-conducting adhesive in louvre 12, heat dissipation post 13 is provided with a plurality of, heat dissipation post 13 is made for aluminium, the coating of the inner wall of heat dissipation post 13 has heat conduction anticorrosive coating 14, two risers 1 are kept away from each other one end and install diaphragm 7, auxiliary component 8 is installed to the upper end of left side diaphragm 7, heat conduction anticorrosive coating 14 has certain self-cleaning nature and hydrophobicity, heat conduction anticorrosive coating 14 can reach 0.92 epsilon, can improve heat dissipation post 13 and anticorrosive coating 12 has avoided the adhesion on the anticorrosive coating on the heat conduction coating.

The auxiliary component 8 comprises a miniature air pump 81, the miniature air pump 81 is installed at the upper end of the left transverse plate 7, the exhaust end of the miniature air pump 81 is connected with a connecting pipe 82, the left end and the right end of the connecting pipe 82 are both connected with a hollow plate 83, a through hole 84 is formed in the lower end of the hollow plate 83, the through hole 84 is provided with a plurality of, and the auxiliary component 8 is used for accelerating the heat discharge near the radiating holes 12.

Install two horizontal poles 6 between the riser 1, hollow slab 83 installs between two horizontal poles 6, and hollow slab 83 ann can dismantle through the bolt and be connected between the horizontal pole 6.

The through holes 84 are located above the heat dissipation holes 12, and the through holes 84 are respectively located right above the heat dissipation holes 12.

Mounting hole 9 has all been seted up in the upper end four corners of PCB circuit board main part 3, and mounting hole 9 and the cooperation of screw rod 5 are used for conveniently fixing PCB circuit board main part 3, and the upper end screw thread interlude of riser 1 is connected with screw rod 5, and mounting hole 9 and rubber pad 4 are passed in proper order to the lower extreme of screw rod 5.

It should be noted that, the utility model relates to a PCB circuit board with blind via hole, during the use, install diaphragm 7 in appointed position, PCB circuit board main part 3 production of heat when operation, some heat transmits heat dissipation post 13 through louvre 12 and discharges, heat conduction anticorrosive coating 14 has certain self-cleaning nature and hydrophobicity, the area of contact of dust with heat dissipation post 13 inner wall has been reduced, the dust has been avoided blockking up louvre 12, heat conduction anticorrosive coating 14 can improve heat radiation coefficient of heat dissipation post 13 simultaneously, accelerate heat dissipation post 13 and derive and give off near louvre 12's heat, open simultaneously, miniature air pump 81's power, miniature air pump 81's exhaust end is with gaseous through connecting pipe 82 carry in the hollow plate 83, then discharge from through-hole 84, blow to in the louvre 12, accelerate the air flow rate in the louvre 12.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A PCB circuit board with blind via hole, includes riser (1), its characterized in that: riser (1) are provided with two and are bilateral symmetry and distribute, two draw-in groove (2) have been seted up to riser (1) one end that is close to each other the lower wall of draw-in groove (2) all is provided with rubber pad (4), two PCB circuit board main part (3) are installed jointly to the upper end of rubber pad (4), louvre (12) have been seted up to the upper end left part of PCB circuit board main part (3), blind hole (11) have been seted up to the upper end right part of PCB circuit board main part (3), via hole (10) have been seted up to the upper end rear portion of PCB circuit board main part (3), be connected with heat dissipation post (13) through heat conduction glue in louvre (12), the inner wall coating of heat dissipation post (13) has heat conduction anticorrosive coating (14), two diaphragm (7), left side are installed to the one end that riser (1) kept away from each other auxiliary component (8) are installed to the upper end of diaphragm (7).

2. The PCB circuit board with blind vias of claim 1, wherein: auxiliary component (8) are including miniature air pump (81), install in the left side miniature air pump (81) the upper end of diaphragm (7), the exhaust end of miniature air pump (81) is connected with connecting pipe (82), hollow core plate (83) are all connected to the left end and the right-hand member of connecting pipe (82), through-hole (84) have been seted up to the lower extreme of hollow core plate (83).

3. The PCB circuit board with blind vias of claim 2, wherein: install two horizontal poles (6) between riser (1), hollow slab (83) are installed between two horizontal poles (6).

4. The PCB circuit board with blind vias of claim 3, wherein: the through holes (84) are positioned above the heat dissipation holes (12).

5. The PCB circuit board with blind vias of claim 4, wherein: mounting holes (9) are formed in four corners of the upper end of the PCB main body (3).

6. The PCB circuit board with blind vias of claim 5, wherein: the upper end screw thread of riser (1) alternates and is connected with screw rod (5), the lower extreme of screw rod (5) passes mounting hole (9) and rubber pad (4) in proper order.