CN211019409U - Corrosion-resistant multilayer composite circuit board - Google Patents

Abstract

The utility model discloses a corrosion-resistant multilayer composite circuit board, including circuit board main part and protection mechanism, protection mechanism includes the spacing ring, installation component and buffer unit, the installation component is located the four corners department of circuit board main part, and includes threaded rod, limiting plate and dead lever, circuit board main part four corners is provided with the mounting hole that can supply the threaded rod to pass, and threaded rod lower extreme surface is provided with the screw thread, circuit board main part passes through the threaded rod detachable installation on installed face, and the limiting plate is fixed on the threaded rod up end, and with circuit board main part upper surface contact; the utility model is provided with the protection mechanism, which not only can play the role of buffering and unloading force when the circuit board main body is subjected to thermal shock, greatly reduces the damage to the circuit board main body and prolongs the service life of the circuit board main body; the whole protection mechanism is convenient to mount and dismount, and the mounting and the overhaul of the circuit board main body 1 are not influenced.

Description

Corrosion-resistant multilayer composite circuit board

Technical Field

The utility model belongs to the technical field of the circuit board, concretely relates to corrosion-resistant multilayer composite line board.

Background

The circuit board is also called flexible circuit board, which is a circuit board made of polyimide. The circuit board has the characteristics of high wiring density, light weight, thin thickness, good bending property and corrosion resistance. The circuit board has the name: circuit board, PCB board, aluminium base board, high frequency board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board etc.. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. Circuit board systems are classified into three categories: single-sided boards, double-sided boards, and multi-layer boards. The circuit board is mainly composed of a bonding pad, a through hole, a mounting hole, a lead, a component, a connector assembly, filling, an electrical boundary and the like.

After some existing multilayer composite circuit boards are installed, corresponding protection measures are lacked, adjacent elements can be burnt out, thermal shock is caused to the circuit boards, and accordingly parts on the circuit boards are damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a corrosion-resistant multilayer composite line board to solve some multilayer composite line boards that propose among the above-mentioned background art and install the back, lack corresponding safeguard procedures, adjacent component can appear burning out, cause the thermal shock to the circuit board, cause the part on it to receive the problem of damage.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a corrosion-resistant multilayer composite line board, includes circuit board main part and safeguard mechanism, safeguard mechanism includes the spacing ring, installation component and buffer unit, the installation component is located the four corners department of circuit board main part, and includes threaded rod, limiting plate and dead lever, circuit board main part four corners is provided with and supplies the mounting hole that the threaded rod passed, and threaded rod lower extreme surface is provided with the screw thread, circuit board main part passes through the threaded rod detachable and installs on installed face, just the limiting plate is fixed at the threaded rod up end, and with circuit board main part upper surface contact, the dead lever is "T" type, and vertical the fixing is at the limiting plate top, and the guard plate movable sleeve is established on the dead lever, and the four corners and the corresponding department.

Preferably, the buffering assembly comprises a buffering ring and a metal elastic sheet, one end of the metal elastic sheet is sleeved on the outer surface of the fixing rod and fixed at the top of the limiting plate through a screw, and the other end of the metal elastic sheet upwards tilts and contacts with the lower surface of the protecting plate.

Preferably, the buffering ring is fixed on the inner wall of the through hole of the protection plate, the buffering ring is movably sleeved on the outer surface of the fixing rod, the buffering ring can move up and down along the fixing rod, and the buffering ring is a rubber ring.

Preferably, the protection plate is a U-shaped structure with a right cross section and a left cross section, threads are arranged on the surface of the upper end of the fixing rod, a limiting ring is detachably sleeved on the fixing rod, and the limiting ring is screwed with the threads on the upper surface of the fixing rod.

Preferably, the circuit board main part lower surface is detachable installs radiator unit, radiator unit includes fin and heat dissipation layer, the heat dissipation layer is installed at the fin upper surface, just the heat dissipation layer is heat dissipation silicone grease.

Preferably, the upper surfaces of the two ends of the radiating fin are fixedly provided with movable columns, the lower surface of the circuit board main body is provided with movable grooves corresponding to the movable columns, the upper ends of the movable columns stretch into the movable grooves, the inner walls of the movable grooves are fixedly provided with two opposite pressing pieces, and the opposite surfaces of the pressing pieces are in surface extrusion contact with the movable columns.

Preferably, the pressing sheet is a rubber sheet.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model is provided with the protection mechanism, which not only can play the role of buffering and unloading force when the circuit board main body is subjected to thermal shock, greatly reduces the damage to the circuit board main body and prolongs the service life of the circuit board main body; the whole protection mechanism is convenient to mount and dismount, and the mounting and the overhaul of the circuit board main body 1 are not influenced.

(2) The utility model discloses a be provided with radiator unit, not only can play the radiating effect to the circuit board main part, reduce the impaired degree of component on it relatively, the installation is convenient with the dismantlement moreover, is convenient for change.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a top view structure of the circuit board main body of the present invention;

FIG. 3 is a schematic left-side view of the protection mechanism of the present invention;

fig. 4 is a schematic view of a partial internal structure of the heat dissipation assembly of the present invention;

FIG. 5 is a schematic structural view of the installation of the movable slot and the movable post of the present invention;

in the figure: 1. a circuit board main body; 2. a protection mechanism; 3. a heat dissipating component; 31. a heat sink; 32. a heat dissipation layer; 4. mounting holes; 5. a protection plate; 6. a metal spring sheet; 7. a limiting plate; 8. a threaded rod; 9. a buffer ring; 10. a limiting ring; 11. fixing the rod; 12. a movable post; 13. a movable groove; 14. and a pressing sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a corrosion-resistant multilayer composite circuit board comprises a circuit board main body 1 and a protection mechanism 2, wherein the protection mechanism 2 comprises a limiting ring 10, a mounting component and a buffer component, the mounting component is positioned at the four corners of the circuit board main body 1 and comprises a threaded rod 8, a limiting plate 7 and a fixed rod 11, the four corners of the circuit board main body 1 are provided with mounting holes 4 for the threaded rod 8 to pass through, the lower end surface of the threaded rod 8 is provided with threads, the circuit board main body 1 is detachably mounted on a mounted surface through the threaded rod 8, the limiting plate 7 is fixed on the upper end surface of the threaded rod 8 and is in contact with the upper surface of the circuit board main body 1, the fixed rod 11 is T-shaped and is vertically fixed at the top of the limiting plate 7, a protection plate 5 is movably sleeved on the fixed rod 11, the positions of the four corners, so that the installation and the maintenance of the circuit board main body 1 are not influenced.

In this embodiment, it is preferred, the buffering subassembly includes buffering ring 9 and metal shrapnel 6, 6 pot heads of metal shrapnel are established at dead lever 11 surface, and fix at limiting plate 7 top through the screw, the other end upwards perk and with 5 lower surface contact of guard plate, buffering ring 9 fixes at 5 perforated inner walls of guard plate, and buffering ring 9 movable sleeve establishes at dead lever 11 surface, and buffering ring 9 can reciprocate along dead lever 11, buffering ring 9 is the rubber ring, through being provided with the buffering subassembly, can be when circuit board main part 1 receives the thermal shock, play the buffering and unload the power effect, the damage to circuit board main part 1 is greatly reduced, increase its life.

In this embodiment, preferably, the protection plate 5 has a U-shaped front section and a U-shaped left section, the upper end surface of the fixing rod 11 is provided with threads, the fixing rod is detachably sleeved with a limiting ring 10, and the limiting ring 10 is screwed with the threads on the upper surface of the fixing rod 11.

In this embodiment, it is preferable, heat dissipating component 3 is detachably installed on the lower surface of circuit board main body 1, heat dissipating component 3 includes heat dissipation fin 31 and heat dissipation layer 32, heat dissipation layer 32 is installed on the upper surface of heat dissipation fin 31, and heat dissipation layer 32 is heat dissipation silicone grease, surface mounting has movable column 12 at both ends of heat dissipation fin 31, the lower surface of circuit board main body 1 is provided with movable groove 13 corresponding to movable column 12, the upper end of movable column 12 stretches into movable groove 13, and the fixed two relative compressing pieces 14 that are provided with of movable groove 13 inner wall, compressing piece 14 opposite face and the contact of movable column 12 surface extrusion formula, compressing piece 14 is the rubber piece, through being provided with heat dissipating component 3, not only can play the radiating effect to circuit board main body 1, reduce the impaired degree of component on it relatively, and installation and dismantlement are convenient.

The utility model discloses a theory of operation and use flow: the utility model discloses when using, install circuit board main part 1 on the installation face first, fix circuit board main part 1 and installation face with threaded rod 8, until limiting plate 7 and circuit board main part 1 surface contact, again with guard plate 5 cover on four dead levers 11, make the 6 perk ends of metal shrapnel contact guard plate 5 lower surface, close spacing ring 10 and dead lever 11 soon at last and carry out spacing to guard plate 5, while installing, radiator unit 3 receives the extrusion, movable column 12 moves upwards in activity groove 13, until heat dissipation layer 32 contacts circuit board main part 1 surface; after the whole protection mechanism 2 is installed, if the circuit board main body 1 is subjected to side thermal shock, the protection plate 5 moves towards the same side, and meanwhile, the buffer ring 9 is extruded to generate elastic force opposite to the impact force and offset relative to the impact force, so that the buffer force-unloading effect is achieved, the impact force is relatively reduced, and the impact force is prevented from being directly applied to elements on the circuit board main body 1 to cause damage; meanwhile, when the circuit board is impacted from top to bottom, the protection plate 5 can move downwards to drive the end part of the metal elastic sheet 6 to deform downwards, an opposite elastic force is generated to offset with an impact force, the force unloading effect is achieved, the protection effect on the circuit board main body 1 can be achieved through the protection mechanism 2, the circuit board main body is convenient to install and disassemble, and the installation and the overhaul of the circuit board main body 1 are not affected.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a corrosion-resistant multilayer composite circuit board, includes circuit board main part (1) and safeguard mechanism (2), its characterized in that: the protection mechanism (2) comprises a limiting ring (10), a mounting component and a buffer component, wherein the mounting component is positioned at the four corners of the circuit board main body (1), and comprises a threaded rod (8), a limiting plate (7) and a fixing rod (11), wherein mounting holes (4) for the threaded rod (8) to pass through are arranged at four corners of the circuit board main body (1), and the lower end surface of the threaded rod (8) is provided with threads, the circuit board main body (1) is detachably arranged on the installed surface through the threaded rod (8), the limiting plate (7) is fixed on the upper end surface of the threaded rod (8) and is contacted with the upper surface of the circuit board main body (1), the fixing rod (11) is T-shaped and is vertically fixed to the top of the limiting plate (7), the protecting plate (5) is movably sleeved on the fixing rod (11), and through holes are formed in the four corners of the fixing rod (11) corresponding to the four corners of the fixing rod.

2. A corrosion resistant multilayer composite wiring board according to claim 1, wherein: the buffer assembly comprises a buffer ring (9) and a metal elastic sheet (6), one end of the metal elastic sheet (6) is sleeved on the outer surface of the fixing rod (11) and is fixed to the top of the limiting plate (7) through a screw, and the other end of the metal elastic sheet upwards tilts and contacts with the lower surface of the protective plate (5).

3. A corrosion resistant multilayer composite wiring board according to claim 2, wherein: buffering ring (9) are fixed at guard plate (5) perforation inner wall, and buffering ring (9) activity cover is established at dead lever (11) surface, just buffering ring (9) can be along dead lever (11) reciprocate, buffering ring (9) are the rubber ring.

4. A corrosion resistant multilayer composite wiring board according to claim 1, wherein: the protective plate (5) is of a U shape with a right cross section and a left cross section, threads are arranged on the surface of the upper end of the fixed rod (11), a limiting ring (10) is detachably sleeved on the threads, and the limiting ring (10) is screwed with the threads on the upper surface of the fixed rod (11).

5. A corrosion resistant multilayer composite wiring board according to claim 1, wherein: circuit board main part (1) lower surface is detachable installs radiator unit (3), radiator unit (3) include fin (31) and heat dissipation layer (32), install at fin (31) upper surface heat dissipation layer (32), just heat dissipation layer (32) are heat dissipation silicone grease.

6. A corrosion resistant multilayer composite wiring board according to claim 5, wherein: the utility model discloses a circuit board, including circuit board main part (1), fin (31) both ends upper surface is fixed with movable post (12), the corresponding play of circuit board main part (1) lower surface and movable post (12) is provided with movable groove (13), activity post (12) upper end stretches into in activity groove (13), just activity groove (13) inner wall is fixed and is provided with two relative compressing pieces (14), compressing piece (14) opposite face and movable post (12) surface extrusion formula contact.

7. A corrosion resistant multilayer composite wiring board according to claim 6, wherein: the pressing sheet (14) is a rubber sheet.

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