CN216146506U

CN216146506U - Shielding structure based on PCB board

Info

Publication number: CN216146506U
Application number: CN202121663436.0U
Authority: CN
Inventors: 张金明
Original assignee: Suzhou Geruizhi Electronic Technology Co ltd
Current assignee: Suzhou Geruizhi Electronic Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-03-29
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a shielding structure based on a PCB (printed circuit board), which comprises a PCB mainboard, an external plug-in component A, an external plug-in component B and an external plug-in component C, wherein the external plug-in component A, the external plug-in component B and the external plug-in component C are arranged at the position, close to the rear end, of the top end of the PCB mainboard, the external plug-in component A is arranged at the position, close to the right end, of the top end of the PCB mainboard, the external plug-in component B is arranged on the left side of the external plug-in component A, the external plug-in component B is pressed downwards, an elastic clamping piece is compressed towards the inside of a groove in the pressing process, then the elastic clamping piece rebounds after the elastic clamping piece is pressed to the bottom, then a shielding cover and a fixing leg on the upper side are fixed inside the PCB mainboard, the PCB mainboard is installed in a circuit through an installation hole, then the external plug-in component A, the external plug-in component B and the external plug-in component C are connected with corresponding data lines on the outside, and then the shielding cover can shield the influence of an internal circuit from external electromagnetic wave and radiate outwards when the shielding cover is used.

Description

Shielding structure based on PCB board

Technical Field

The utility model belongs to the technical field related to shielding structures, and particularly relates to a shielding structure based on a PCB (printed circuit board).

Background

A shield is a means for shielding electronic signals. The electromagnetic shielding device has the function of shielding the influence of external electromagnetic waves on an internal circuit and the outward radiation of electromagnetic waves generated inside, and is a device mode in electrical engineering. In order to prevent interference of external electric, magnetic or electromagnetic fields with the internal devices or to avoid influence of the electromagnetic fields of the devices on the outside, the devices are placed in a closed or nearly closed metal shell or mesh enclosure, which is referred to as a shield. In structural chemistry, the term masking is used to name the following effects. The repulsion of inner electrons to outer electrons in atoms reduces the effective attraction of the atoms to the outer electrons, which is equivalent to the 'shielding' of the inner electrons by a part of nuclear charges, so the shielding effect is called as shielding effect, and the mounting is needed when the device is used.

The prior shielding structure technology based on the PCB has the following problems: the existing shielding structure based on the PCB is mainly used for protecting an internal main board, the whole shielding structure based on the PCB is mainly realized through a shell, the shell can play a role in protecting internal elements, but when the shielding structure is used, a cover needs to be inserted, and then tin soldering is carried out, so that the shielding structure is very troublesome in installation, and is inconvenient to disassemble and maintain.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shielding structure based on a PCB (printed circuit board), which aims to solve the problems that although the shielding structure in the background art can protect internal elements through a shell, when in use, a cover needs to be inserted into the shielding structure and then soldered by tin, so that the shielding structure is very troublesome to mount and inconvenient to detach and maintain.

In order to achieve the purpose, the utility model provides the following technical scheme: a shielding structure based on a PCB comprises a PCB mainboard, an external plug-in component A, an external plug-in component B and an external plug-in component C, wherein the external plug-in component A, the external plug-in component B and the external plug-in component C are arranged at the top end of the PCB mainboard and close to the rear end, the external plug-in component A is arranged at the top end of the PCB mainboard and close to the right end, the external plug-in component B is arranged on the left side of the external plug-in component A, the external plug-in component C is arranged on the left side of the external plug-in component B, a mounting hole penetrates through the inner part of the PCB mainboard and close to four corners, a fixed protection device is arranged at the top end of the PCB mainboard and close to the middle part, the fixed protection device comprises a shielding cover, a fixed leg, a groove and an elastic clamping piece, the fixed leg penetrates through the inner part of the PCB mainboard, the shielding cover is arranged at the upper end of the fixed leg, and the elastic clamping pieces are arranged at the front end and the back end of the fixed leg and close to the bottom end, the fixed leg is provided with a groove in the inner part close to the bottom end.

Preferably, the surface of the PCB main board is coated with insulating paint, and the intercepting line of the PCB main board is arranged inside the PCB main board.

Preferably, the aperture of the mounting hole is two millimeters, and the mounting hole is symmetrical about the center.

Preferably, the fixed protection device is detachable and reusable, and an element having a radiation function is provided inside the fixed protection device.

Preferably, the outside plug-in A, the outside plug-in B and the outside plug-in C are electrically connected with an internal circuit, and the rear ends of the outside plug-in A, the outside plug-in B and the outside plug-in C are arranged on the same plane.

Preferably, the outer walls of the elastic clamping pieces are polished, and the elasticity of the elastic clamping pieces is ten newtons.

Compared with the prior art, the utility model provides a shielding structure based on a PCB, which has the following beneficial effects:

1. according to the utility model, the fixed protection device is added on the shielding structure based on the PCB, and the newly added fixed protection device is arranged at the bottom when not in use, so that the normal use of the whole PCB is not influenced when not in use, and when in use, the shielding cover is fixed by the fixed protection device on the original basis, so that the installation is particularly quick, and the internal disassembly and maintenance are also particularly simple, so that the whole body is more convenient;

2. the specific use method of the fixed protection device comprises the following steps of carrying the whole PCB-based shielding structure to a place to be used, checking whether the whole PCB-based shielding structure is damaged or not, so that accidents can be prevented when the fixed protection device is used, then installing the fixed protection device on a PCB mainboard, aligning a fixing leg in the fixed protection device with a hole during installation, pressing downwards, compressing an elastic clamping piece towards the inside of a groove during pressing, rebounding the elastic clamping piece after the elastic clamping piece is pressed to the bottom, fixing a shielding cover and the fixing leg on the PCB mainboard inside, then installing the PCB mainboard in a circuit through an installation hole, then connecting an external plug-in A, an external plug-in B and an external plug-in C with corresponding data lines outside, and then shielding the influence of external electromagnetic waves on an internal circuit and electromagnetic waves generated inside by the shielding cover during use And (4) external radiation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:

fig. 1 is a schematic front perspective view of a shielding structure based on a PCB board according to the present invention;

fig. 2 is a schematic view of a partial planar structure of a shielding structure based on a PCB board according to the present invention;

fig. 3 is a schematic diagram of a partially enlarged structure of a shielding structure based on a PCB board according to the present invention;

in the figure: 1. a PCB main board; 2. mounting holes; 3. fixing a protection device; 4. an outside plug-in A; 5. an outside plug-in B; 6. an outside plug-in C; 7. a shield case; 8. a fixed leg; 9. a groove; 10. an elastic fastener.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a shielding structure based on a PCB comprises a PCB mainboard 1, an external plug-in A4, an external plug-in B5 and an external plug-in C6, wherein the external plug-in A4, the external plug-in B5 and the external plug-in C6 are electrically connected with an internal circuit, the rear ends of the external plug-in A4, the external plug-in B5 and the external plug-in C6 are arranged on the same plane, so that the installation is orderly, the external plug-in A4, the external plug-in B5 and the external plug-in C6 are arranged at the position, close to the rear end, of the top end of the PCB mainboard 1, the external plug-in A4 is arranged at the position, close to the right end, the surface of the PCB mainboard 1 is coated with insulating paint, so that the shielding structure is safer in use, an intercepting line of the PCB mainboard 1 is arranged inside, the left side of the external plug-in A4 is provided with the external plug-in B5, the left side of the external plug-in B5 is provided with the external plug-in C6, the inside of the mainboard 1 and the four adjacent mounting holes 2 are all penetrated through, the aperture of mounting hole 2 is two millimeters, and mounting hole 2 is about central symmetry, and is more stable like this when fixed, and the top of PCB mainboard 1 just is close to the middle part and is provided with fixed protection device 3.

Example two

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: the utility model provides a shielding structure based on PCB board, fixed protection device 3 includes shield cover 7, fixed leg 8, recess 9 and elasticity fastener 10, fixed protection device 3 can be dismantled and reuse many times, resources are saved so relatively, the reuse of resource can be accomplished, the inside of fixed protection device 3 is provided with the component that has the radiation function, fixed leg 8 runs through the inside at PCB mainboard 1, the upper end of fixed leg 8 is provided with shield cover 7, the position department that fixed leg 8 front and back end and be close to the bottom is provided with elasticity fastener 10, the outer wall of elasticity fastener 10 all is through polishing processing, it inserts into and can not loosen to change back relatively easy when using like this, the elasticity of elasticity fastener 10 is ten, the inside that Newton's fixed leg 8 is close to the bottom is provided with recess 9.

The working principle and the using process of the utility model are as follows: after the utility model is installed, when the shielding structure based on the PCB is used, firstly, the whole shielding structure based on the PCB needs to be carried to a place needing to be used, then the whole shielding structure based on the PCB is checked whether the place is damaged or not, thus accidents can be prevented when the shielding structure based on the PCB is used, then, the fixed protection device 3 is installed on the PCB mainboard 1, when in installation, the fixed leg 8 in the fixed protection device 3 is aligned with the hole, then, the fixed leg is pressed downwards, the elastic clamping piece 10 is compressed towards the inner part of the groove 9 when in pressing, then, after the elastic clamping piece 10 is pressed to the bottom, the upper shielding cover 7 and the fixed leg 8 are fixed in the PCB mainboard 1, then, the PCB mainboard 1 is installed in a circuit through the installation hole 2, then, the external plug-in A4, the external plug-in B5 and the external plug-in C6 are connected with corresponding data lines outside, then, the shield case 7 shields the influence of external electromagnetic waves on the internal circuit and the outward radiation of internally generated electromagnetic waves when in use.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a shielding structure based on PCB board, includes PCB mainboard (1), external plug-in components A (4), external plug-in components B (5) and external plug-in components C (6), its characterized in that: the PCB is characterized in that an external plug-in component A (4), an external plug-in component B (5) and an external plug-in component C (6) are arranged at the top end of the PCB main board (1) and close to the rear end, the external plug-in component A (4) is arranged at the top end of the PCB main board (1) and close to the right end, the external plug-in component B (5) is arranged on the left side of the external plug-in component A (4), the external plug-in component C (6) is arranged on the left side of the external plug-in component B (5), a mounting hole (2) penetrates through the inner part of the PCB main board (1) and close to four corners, a fixed protection device (3) is arranged at the top end of the PCB main board (1) and close to the middle part of the top end of the PCB main board (1), the fixed protection device (3) comprises a shielding cover (7), a fixed leg (8), a groove (9) and an elastic fastener (10), the fixed leg (8) penetrates through the inner part of the PCB main board (1), the upper end of the fixed leg (8) is provided with the shielding cover (7), elastic clamping pieces (10) are arranged at the front end and the rear end of the fixed leg (8) and at the position close to the bottom end, and grooves (9) are formed in the fixed leg (8) close to the bottom end.

2. The PCB board-based shielding structure of claim 1, wherein: insulating paint is coated on the surface of the PCB main board (1), and an intercepting circuit of the PCB main board (1) is arranged inside the PCB main board.

3. The PCB board-based shielding structure of claim 1, wherein: the aperture of the mounting hole (2) is two millimeters, and the mounting hole (2) is symmetrical about the center.

4. The PCB board-based shielding structure of claim 1, wherein: the fixed protection device (3) can be detached and used for multiple times, and an element with a radiation function is arranged inside the fixed protection device (3).

5. The PCB board-based shielding structure of claim 1, wherein: the external plug-in components A (4), the external plug-in components B (5) and the external plug-in components C (6) are electrically connected with an internal circuit, and the rear ends of the external plug-in components A (4), the external plug-in components B (5) and the external plug-in components C (6) are arranged on the same plane.

6. The PCB board-based shielding structure of claim 1, wherein: the outer walls of the elastic clamping pieces (10) are polished, and the elasticity of the elastic clamping pieces (10) is ten newtons.