CN210470173U

CN210470173U - Shielding structure based on double-layer PCB

Info

Publication number: CN210470173U
Application number: CN201921482650.9U
Authority: CN
Inventors: 徐华罗
Original assignee: Huizhou Huangjia Technology Co Ltd
Current assignee: Huizhou Huangjia Technology Co Ltd
Priority date: 2019-09-07
Filing date: 2019-09-07
Publication date: 2020-05-05
Anticipated expiration: 2029-09-07

Abstract

The utility model discloses a shielding structure based on double-deck PCB board belongs to PCB board technical field, including the shielding shell, the inside below of shielding shell is fixed with the bracing piece, the top of bracing piece is installed the supporting pad, the top of supporting pad is provided with lower PCB board, and lower PCB board contacts with the supporting pad, lower PCB board is connected with upper PCB board through the construction bolt; be provided with the bracing piece, the supporting pad, the bottom of PCB board under being located because of the supporting pad, can be so that the bottom of going up PCB board and PCB board down no longer unsettled, and support with the part to PCB board and its top down through the bracing piece, and ensure the stability of going up PCB board and PCB board down, avoid the pull rod to support for a long time and damage, and prevent to go up PCB board and PCB board down and drop to the shielding shell in and cause the condition emergence of damage, the supporting pad is formed by the rubber preparation simultaneously, can protect the bottom of PCB board down, prevent the bottom wearing and tearing of PCB board down, thereby improve PCB board and the half service time limit of last PCB board down.

Description

Shielding structure based on double-layer PCB

Technical Field

The utility model relates to a PCB board technical field specifically is a shielding structure based on double-deck PCB board.

Background

Printed circuit boards are not typical end products and are somewhat confusing in the definition of names such as: a motherboard for a personal computer, which is called a motherboard and cannot be directly called a circuit board, is different from the motherboard in the presence of the circuit board, so that the two are related but cannot be said to be the same when evaluating the industry; for another example: because of the integrated circuit components loaded on the circuit board, the news media is called an IC board, but it is not substantially identical to a printed circuit board; by printed circuit board we generally say bare board-i.e. a circuit board without upper components.

Chinese patent that is CN208317266U according to the publication discloses a shielding structure based on double-deck PCB, including shielding shell and the lower PCB of setting in its inside, the equal fixedly connected with montant of upper end four corners department of lower PCB, every all the cover is equipped with the fly leaf on the montant, the part cover that the montant is located between fly leaf and the lower PCB is equipped with first spring, the upper end fixedly connected with hexagonal bolt of montant, four the upper end of hexagonal bolt is equipped with the PCB jointly, go up the PCB and pass through locking screw fixed connection in the upper end of hexagonal bolt, the device of easily disturbing is installed to the lower extreme of lower PCB, be equipped with fixing device on the fly leaf, shielding shell's inner wall is equipped with the fixed slot corresponding with fixing device position, shielding shell's interior bottom is equipped with heat abstractor.

The installation of the upper PCB and the lower PCB is facilitated by arranging the vertical rods, the hexagonal bolts and the locking screws; the first heat dissipation plate and the second heat dissipation plate are arranged at the inner bottom of the shielding shell, so that the heat dissipation of the lower PCB can be effectively ensured, and unnecessary faults caused by overheating of the lower PCB are avoided; by arranging the sliding block, the fixed rod and the fixed groove, the shielding shell can be quickly installed and disassembled, and the installation efficiency is improved; by movably connecting the movable plate with the vertical rod and arranging the first spring between the movable plate and the lower PCB, when the shielding shell vibrates, the dynamic load transmitted to the PCB is reduced, and the service life of the PCB is prolonged; however, all the gravity of the upper half PCB, the lower half PCB and the interference-prone device is supported only by the fixing rod, the size of the fixing rod is small, the stability of the upper PCB, the lower PCB and the interference-prone device is difficult to guarantee, the fixing rod is easy to damage by being supported by the fixing rod for a long time, and the upper PCB, the lower PCB and the interference-prone device fall into the shielding shell to be damaged; meanwhile, when the upper PCB and the lower PCB are connected through the locking screws, the upper PCB and the lower PCB are easy to shift in the assembling process, so that the assembling is troublesome, and the damage of the mounting hole can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shielding structure based on double-deck PCB board has solved its PCB board stability of above-mentioned background art not good and has easily taken place to shift and lead to assembling troublesome problem when assembling two PCB boards.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a shielding structure based on double-deck PCB board, includes the shielding shell, the inside below of shielding shell is fixed with the bracing piece, the supporting pad is installed at the top of bracing piece, the top of supporting pad is provided with down the PCB board, just the PCB board contacts with the supporting pad down, the PCB board is connected with the PCB board through construction bolt down, the constant head tank has been seted up at the top of lower PCB board, the bottom of going up the PCB board is fixed with the locating lever, the bottom mounting of locating lever has the locating piece, one side of construction bolt is run through there is the card hole, the spring is all installed to the inner wall both sides of shielding shell, the one end of spring is connected with the card post that extends to card downthehole portion, the one end of card post is connected with and extends to the outside pull rod.

Preferably, the positioning block is located inside the positioning groove, and the positioning block is matched with the positioning groove.

Preferably, the clamping column is matched with the clamping hole, and one end of the clamping column is arc-shaped.

Preferably, the support pad is made of a rubber material.

Preferably, the number of the pull rods is two, the outer surfaces of the two pull rods are bonded with rubber through strong glue, and the two pull rods are symmetrically arranged along the center line of the longitudinal axis of the shielding shell.

Preferably, the upper PCB is threadedly connected with the lower PCB by a mounting bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the shielding structure based on the double-layer PCB is provided with the supporting rod and the supporting pad, and the supporting pad is positioned at the bottom of the lower PCB, so that the bottoms of the upper PCB and the lower PCB are not suspended any more, the lower PCB and parts at the top of the lower PCB are supported by the supporting rod, the stability of the upper PCB and the lower PCB is ensured, the damage caused by long-time support of the pull rod is avoided, the upper PCB and the lower PCB are prevented from falling into the shielding shell to cause damage, meanwhile, the supporting pad is made of rubber, the bottom of the lower PCB can be protected, the bottom of the lower PCB is prevented from being worn, and the service life of the lower PCB and the upper PCB is prolonged; be provided with the locating lever, the locating piece, the constant head tank, when needing to assemble PCB board and lower PCB board, the user will go up placing PCB board's top under, make the locating piece card of locating lever bottom go into to the constant head tank in simultaneously, so that go up PCB board and PCB board can not take place the skew when installing through construction bolt down, and protect the mounting hole, prevent that PCB board aversion in the installation and lead to the condition emergence of equipment failure and mounting hole damage, the locating lever plays the effect of carrying out the support to last PCB board simultaneously, with improve its stability, so that solved PCB board stability not good and easily take place the aversion when assembling two PCB boards and lead to assembling troublesome problem.

Drawings

FIG. 1 is a schematic view of a front cross-section structure of a shielding case of the present invention;

FIG. 2 is an enlarged schematic view of the structure of the present invention A;

FIG. 3 is an enlarged schematic view of the structure of the present invention B;

fig. 4 is a schematic view of the shielding case of the present invention.

In the figure: 1. a shield case; 2. an upper PCB board; 3. installing a bolt; 4. positioning a rod; 5. a lower PCB board; 6. positioning blocks; 7. a clamping hole; 8. positioning a groove; 9. a spring; 10. a pull rod; 11. a support pad; 12. a support bar; 13. and (5) clamping the column.

Detailed description of the preferred embodiments

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.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "fixed," "sleeved," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; the two elements may be connected directly or indirectly through an intermediate medium, and the two elements may be connected internally or in an interaction relationship, and a person skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a shielding structure based on double-layer PCB comprises a shielding shell 1, an upper PCB 2, a mounting bolt 3, a positioning rod 4, a lower PCB 5, a positioning block 6, a clamping hole 7, a positioning groove 8, a spring 9, a pull rod 10, a supporting pad 11, a supporting rod 12 and a clamping column 13, wherein the supporting rod 12 is fixed below the inner part of the shielding shell 1, the supporting pad 11 is installed at the top of the supporting rod 12, the lower PCB 5 is arranged at the top of the supporting pad 11, the lower PCB 5 is in contact with the supporting pad 11, the lower PCB 5 is connected with the upper PCB 2 through the mounting bolt 3, the positioning groove 8 is arranged at the top of the lower PCB 5, the positioning rod 4 is fixed at the bottom of the upper PCB 2, the positioning block 6 is fixed at the bottom end of the positioning rod 4, the clamping hole 7 penetrates through one side of the mounting bolt 3, the spring 9 is installed on both sides of the inner wall of the shielding shell 1, one end of the spring 9 is connected with the clamping column 13 extending into the, one end of the clamping column 13 is connected with a pull rod 10 extending to the outside of the shielding shell 1, and the positioning rod 4 is arranged to prevent the upper PCB 2 and the lower PCB 5 from shifting in the installation process and improve the installation efficiency.

Referring to fig. 1-4, the positioning block 6 is located inside the positioning slot 8, and the positioning block 6 is adapted to the positioning slot 8, so that the positioning block 6 is clamped into the positioning slot 8 to prevent displacement when the upper PCB 2 and the lower PCB 5 are mounted, the clamping column 13 is adapted to the clamping hole 7, and one end of the clamping column 13 is arc-shaped, so that the clamping column 13 is clamped into the clamping hole 7 to fix the shielding shell 1.

Referring to fig. 1-2, the supporting pad 11 is made of rubber material to support the lower PCB 5 and prevent the bottom of the lower PCB 5 from being worn, two pull rods 10 are provided, rubber is adhered to the outer surfaces of the two pull rods 10 through strong glue, and the two pull rods 10 are symmetrically arranged along the center line of the longitudinal axis of the shielding shell 1, so that a user can conveniently pull the pull rods 10 to move the clamping columns 13 to disassemble and assemble the shielding shell 1.

Referring to fig. 1 and 4, the upper PCB 2 is screwed to the lower PCB 5 by the mounting bolts 3, so that a user can assemble the upper PCB 2 and the lower PCB 5 by the mounting bolts 3.

The working principle is as follows: firstly, when the upper PCB 2 and the lower PCB 5 need to be assembled, a user places the upper PCB 2 on the top of the lower PCB 5, and simultaneously, the positioning block 6 at the bottom of the positioning rod 4 is clamped into the positioning groove 8, then the upper PCB 2 and the lower PCB 5 are installed through the installation bolt 3, after the installation is finished, a user puts the lower PCB on the top of the supporting pad 11, then the user pulls the pull rod 10, the pull rod 10 moves to make the clamping column 13 move, meanwhile, the spring 9 is pressed, the spring 9 is compressed under force, when the fastening hole 7 of the mounting bolt 3 is aligned with the fastening post 13, the user releases the pull rod 10, the spring 9 recovers elasticity and moves the fastening post 13, and the fastening post 13 is fastened into the fastening hole 7 to fix the shielding shell 1, when the shielding shell 1 needs to be disassembled, a user can disassemble the shielding shell 1 by pulling the pull rod 10 to enable the clamping column 13 to move out of the clamping hole 7.

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

1. The utility model provides a shielding structure based on double-deck PCB board, includes shielding shell (1), its characterized in that: a support rod (12) is fixed at the lower part inside the shielding shell (1), a support pad (11) is installed at the top of the support rod (12), a lower PCB (5) is arranged at the top of the support pad (11), the lower PCB (5) is contacted with the supporting pad (11), the lower PCB (5) is connected with the upper PCB (2) through a mounting bolt (3), the top of the lower PCB (5) is provided with a positioning groove (8), the bottom of the upper PCB (2) is fixed with a positioning rod (4), a positioning block (6) is fixed at the bottom end of the positioning rod (4), a clamping hole (7) penetrates through one side of the mounting bolt (3), springs (9) are arranged on two sides of the inner wall of the shielding shell (1), one end of each spring (9) is connected with a clamping column (13) extending into the clamping hole (7), one end of the clamping column (13) is connected with a pull rod (10) extending to the outside of the shielding shell (1).

2. The shielding structure of claim 1, wherein: the positioning block (6) is located inside the positioning groove (8), and the positioning block (6) is matched with the positioning groove (8).

3. The shielding structure of claim 1, wherein: the clamping column (13) is matched with the clamping hole (7), and one end of the clamping column (13) is arc-shaped.

4. The shielding structure of claim 1, wherein: the supporting pad (11) is made of rubber materials.

5. The shielding structure of claim 1, wherein: the shielding shell is characterized in that the number of the pull rods (10) is two, rubber is adhered to the outer surfaces of the two pull rods (10) through strong glue, and the two pull rods (10) are symmetrically arranged along the center line of the longitudinal axis of the shielding shell (1).

6. The shielding structure of claim 1, wherein: the upper PCB (2) is in threaded connection with the lower PCB (5) through the mounting bolt (3).