CN218483009U

CN218483009U - High-precision multilayer PCB of mobile terminal

Info

Publication number: CN218483009U
Application number: CN202222440663.8U
Authority: CN
Inventors: 尹红华; 谭军华
Original assignee: Huizhou Huagao Circuit Co ltd
Current assignee: Huizhou Huagao Circuit Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-02-14
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a mobile terminal's high-accuracy multilayer PCB board, including multilayer PCB board main part, the upper end of multilayer PCB board main part is provided with the inoxidizing coating, the connecting block, two are all installed to the left end and the right-hand member of multilayer PCB board main part the left end and the right-hand member of connecting block all are provided with the riser, two the lower extreme of connecting block all is provided with the cushion, two the lower extreme of cushion all is provided with the mounting panel, two the mounting panel is installed respectively on the riser, two the fixed orifices has all been seted up to the one end that the connecting block was kept away from each other. A high-accuracy multilayer PCB board of mobile terminal, can dismantle multilayer PCB board main part fast through setting up fixed part and connecting block, easy operation, the takedown time is short, has improved work efficiency, can protect multilayer PCB board main part through setting up the inoxidizing coating, has improved the life of PCB board.

Description

High-precision multilayer PCB of mobile terminal

Technical Field

The utility model relates to a PCB board technical field, in particular to mobile terminal's high-accuracy multilayer PCB board.

Background

The mobile terminal is also called as a mobile communication terminal, and refers to computer equipment which can be used in moving, including mobile phones, notebook computers, tablet computers, POS machines, vehicle-mounted computers and the like, and the mobile terminal is usually provided with a multilayer PCB (printed circuit board), namely more than two layers of printed boards, which consists of connecting wires on a plurality of layers of insulating substrates and bonding pads for assembling and welding electronic elements, and has the functions of conducting each layer of circuits, having high circuit precision and insulating each other.

The prior art (application number: CN 202022863782.5) discloses a high-precision multilayer PCB of a mobile terminal, which comprises a PCB layer, wherein insulating layers are symmetrically and fixedly connected to the opposite side walls of the PCB layer, a heat dissipation layer is fixedly connected to each of the opposite side walls of the two insulating layers, waterproof layers are fixedly connected to the side walls, far away from the PCB layer, of the two heat dissipation layers, fireproof layers are fixedly connected to the side walls, far away from the PCB layer, of the two waterproof layers, an anticorrosive layer is fixedly connected to the bottom side wall of the fireproof layer at the bottom, and an armor layer is fixedly connected to the bottom side wall of the fireproof layer at the top;

although the multilayer protection is carried out to the circuit board through the setting of multilayer inoxidizing coating to above-mentioned patent, nevertheless need install in screwing the mounting hole on the mounting panel with the screw during installation, during subsequent dismantlement, need use the instrument to dismantle, the operation is comparatively loaded down with trivial details, and the dismantlement time is long, has reduced work efficiency, needs further improvement, for this reason we propose a mobile terminal's high accuracy multilayer PCB board.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a high-accuracy multilayer PCB board of mobile terminal can effectively solve the long problem of PCB dismantlement time among the background art.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a mobile terminal's high-accuracy multilayer PCB board, includes multilayer PCB board main part, the upper end of multilayer PCB board main part is provided with the inoxidizing coating, the connecting block is all installed, two to the left end and the right-hand member of multilayer PCB board main part the left end and the right-hand member of connecting block all are provided with the riser, two the lower extreme of connecting block all is provided with the cushion, two the lower extreme of cushion all is provided with the mounting panel, two the mounting panel is installed respectively on the riser, two the fixed orifices, two have all been seted up to the one end that the connecting block was kept away from each other the one end that the riser was kept away from each other all is provided with fixed part.

Preferably, the fixing part comprises a concave block, the concave block is installed on the vertical plate, a pressing rod is rotatably connected in the concave block through a rotating shaft, the upper end of the pressing rod is rotatably connected with a fixing rod through a rotating shaft, and a blocking piece and a spring are arranged on the outer surface of the fixing rod.

Preferably, the protective layer comprises a primer coating, the primer coating is arranged at the upper end of the multilayer PCB main body, and an organic silicon moisture-proof coating is arranged at the upper end of the primer coating.

Preferably, the vertical plate is provided with a through hole, and the inner wall of the through hole is provided with a circular groove.

Preferably, one end, far away from the pressing rod, of the fixing rod penetrates through the through hole and extends into the fixing hole, the blocking piece and the spring are located in the circular groove, the spring is located between the pressing rod and the blocking piece, the blocking piece is fixedly sleeved on the fixing rod, and the spring is movably sleeved on the fixing rod.

Preferably, two installation bases are installed at the left end of the vertical plate far away from the multilayer PCB main body.

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

1. the utility model relates to a high-accuracy multilayer PCB board of mobile terminal can dismantle multilayer PCB board main part fast through setting up fixed part and connecting block, when needing to maintain multilayer PCB board, presses two depression bars, drives the dead lever and keeps away from in the fixed orifices on the connecting block, then can take out multilayer PCB board from the mobile terminal, easy operation, the dismantlement time is short, has improved work efficiency;

2. the utility model relates to a mobile terminal's high-accuracy multilayer PCB board, can protect multilayer PCB board main part through setting up the inoxidizing coating, become one deck transparent elastic protection film after its solidification of organosilicon moisture barrier coating, it is superior insulating to have, it is dampproofing, it is waterproof, anticreep, it is shockproof, dustproof, anticorrosives, anti-aging, performances such as corona resistance, can strengthen the dampproofing dirt-proof ability of electronic circuit and components and parts, prevent that solder joint and conductor from receiving the erosion, also can play the effect of eliminating electromagnetic interference, prevent the short circuit of circuit, improve the insulating properties of circuit board, furthermore, the coating protection film also is favorable to the antifriction, the solvent resistance of circuit and components and parts, and can release the pressure that temperature periodicity changed and cause, the service life of PCB board has been improved.

Drawings

Fig. 1 is a schematic view of an overall structure of a high-precision multilayer PCB of the mobile terminal of the present invention;

fig. 2 is a schematic view of the overall structure of the connecting block of the high-precision multilayer PCB of the mobile terminal of the present invention;

fig. 3 is a schematic view of the overall structure of the fixing component of the high-precision multilayer PCB of the present invention;

fig. 4 is the utility model relates to a mobile terminal's high-accuracy multilayer PCB board's overall structure schematic diagram of inoxidizing coating.

In the figure: 1. a multi-layer PCB board main body; 2. a protective layer; 3. connecting blocks; 4. a vertical plate; 5. a mounting seat; 6. a fixing member; 7. mounting a plate; 8. an elastic pad; 9. a fixing hole; 61. fixing the rod; 62. a baffle plate; 63. a spring; 64. a pressure lever; 65. a concave block; 41. a through hole; 42. a circular groove; 21. an organosilicon moisture-proof coating; 22. and (3) primer coating.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "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 description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, 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 high-precision multilayer PCB of mobile terminal, including multilayer PCB main part 1, the upper end of multilayer PCB main part 1 is provided with inoxidizing coating 2, connecting block 3 is all installed to the left end and the right-hand member of multilayer PCB main part 1, the left end and the right-hand member of two connecting blocks 3 all are provided with riser 4, the lower extreme of two connecting blocks 3 all is provided with cushion 8, the lower extreme of two cushion 8 all is provided with mounting panel 7, install respectively on riser 4 for two mounting panel 7, fixed orifices 9 have all been seted up to the one end that two connecting blocks 3 kept away from each other, the one end that two risers 4 kept away from each other all is provided with fixed part 6, cushion 8 is in compression state.

The fixing part 6 comprises a concave block 65, and the concave block 65 is arranged on the vertical plate 4; as a specific embodiment, the concave blocks 65 are welded to the risers 4; a pressing rod 64 is rotatably connected in the concave block 65 through a rotating shaft, the upper end of the pressing rod 64 is rotatably connected with a fixing rod 61 through the rotating shaft, a blocking piece 62 and a spring 63 are arranged on the outer surface of the fixing rod 61, the fixing part 6 and the connecting block 3 are used for rapidly disassembling the multilayer PCB main body 1, the operation is simple, the disassembling time is short, and the working efficiency is improved.

The protective layer 2 comprises a primer coating 22, the primer coating 22 is arranged on the upper end of the multilayer PCB main body 1, an organic silicon moisture-proof coating 21 is arranged on the upper end of the primer coating 22, the primer coating 22 is used for increasing the adhesiveness of the organic silicon moisture-proof coating 21, the protective layer 2 is used for protecting the multilayer PCB main body 1, and the service life of the PCB is prolonged.

Seted up through-hole 41 on riser 4, circular recess 42 has been seted up to the inner wall of through-hole 41, dead lever 61 is kept away from the one end of depression bar 64 and is passed through-hole 41 and extend to in the fixed orifices 9, separation blade 62 and spring 63 all are located circular recess 42, spring 63 is located between depression bar 64 and the separation blade 62, separation blade 62 is fixed to cup joint on the dead lever 61, the spring 63 activity cup joints on the dead lever 61, spring 63 is in compression state, the diameter of through-hole 41 and fixed orifices 9 all is greater than dead lever 61, the diameter of circular recess 42 all is greater than the diameter of separation blade 62 and spring 63.

Two mount pads 5 have all been installed to riser 4 left end of keeping away from multilayer PCB board main part 1, and the mounting hole has been seted up to mount pad 5 for install in mobile terminal.

It should be noted that, the utility model relates to a mobile terminal's high-accuracy multilayer PCB board, during the use, through mount pad 5, install multilayer PCB board main part 1 in mobile terminal, organosilicon moisture barrier coating 21 can strengthen the dampproofing dirt resistance of electronic circuit and components and parts, prevent that solder joint and conductor from receiving the erosion on multilayer PCB board main part 1, also can play the effect of eliminating electromagnetic interference, prevent the short circuit of circuit, improve the insulating properties of circuit board, furthermore, the coating protection film also is favorable to circuit and components and parts's antifriction, solvent resistance, and can release the pressure that the temperature periodicity changes and cause, when needing to dismantle the maintenance to multilayer PCB board main part 1, press two depression bars 64, drive in dead lever 61 keeps away from fixed orifices 9, then just can take out multilayer PCB board main part 1 in the mobile terminal alone, during the installation, press two depression bars 64, make dead lever 61 get into in the through-hole 41 completely, place multilayer PCB board main part 1 on cushion 8, carry out appropriate pressing, then loosen two depression bars 64, dead lever 61 receives the elasticity of spring 63, make dead lever 61 get into fixed orifices 9.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mobile terminal's high accuracy multilayer PCB board, includes multilayer PCB board main part (1), its characterized in that: the upper end of multilayer PCB board main part (1) is provided with inoxidizing coating (2), connecting block (3), two are all installed to the left end and the right-hand member of multilayer PCB board main part (1) the left end and the right-hand member of connecting block (3) all are provided with riser (4), two the lower extreme of connecting block (3) all is provided with cushion (8), two the lower extreme of cushion (8) all is provided with mounting panel (7), two mounting panel (7) are installed respectively on riser (4), two fixed orifices (9), two have all been seted up to the one end of keeping away from each other of connecting block (3) the one end of keeping away from each other of riser (4) all is provided with fixed part (6).

2. A high-precision multi-layer PCB board for a mobile terminal according to claim 1, wherein: the fixing part (6) comprises a concave block (65), the concave block (65) is installed on the vertical plate (4), a pressing rod (64) is rotatably connected into the concave block (65) through a rotating shaft, the upper end of the pressing rod (64) is rotatably connected with a fixing rod (61) through the rotating shaft, and a blocking piece (62) and a spring (63) are arranged on the outer surface of the fixing rod (61).

3. A high-precision multi-layer PCB board for a mobile terminal according to claim 2, wherein: the protective layer (2) comprises a primer coating (22), the primer coating (22) is arranged at the upper end of the multilayer PCB main body (1), and an organic silicon moisture-proof coating (21) is arranged at the upper end of the primer coating (22).

4. A high-precision multi-layer PCB board for a mobile terminal according to claim 3, wherein: a through hole (41) is formed in the vertical plate (4), and a circular groove (42) is formed in the inner wall of the through hole (41).

5. A high-precision multi-layer PCB board for a mobile terminal according to claim 4, wherein: the one end that depression bar (64) was kept away from in dead lever (61) passed through-hole (41) and extended to fixed orifices (9), separation blade (62) and spring (63) all are located circular slot (42), spring (63) are located between depression bar (64) and separation blade (62), separation blade (62) are fixed to cup joint on dead lever (61), spring (63) activity cup joints on dead lever (61).

6. A high-precision multilayer PCB board for mobile terminals according to claim 5, characterized in that: two mount pads (5) are all installed to riser (4) the left end of keeping away from multilayer PCB board main part (1).