CN218183593U

CN218183593U - Shielding case and PCBA board that PCB board was used

Info

Publication number: CN218183593U
Application number: CN202222009622.3U
Authority: CN
Inventors: 任恒昌
Original assignee: Shanghai X-Chang Telecom Ltd
Current assignee: Shanghai X-Chang Telecom Ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-12-30
Anticipated expiration: 2032-08-01

Abstract

The utility model relates to a shield cover that PCB board was used, including the shield cover body, the edge of shield cover body downwardly extending forms annular limit body respectively, the other end of limit body is open portion, be equipped with more than one joint portion on the limit body. The utility model also discloses a PCBA board, which comprises a PCB board and the shielding case; the PCB board is provided with a through hole, the clamping part is clamped on the through hole and fixes the shielding cover and the PCB board, and the other end of the edge body of the shielding cover is attached to the surface of the PCB board. The beneficial effects are as follows: the installation and the disassembly are simple and convenient, the use is convenient, and the safety and the reliability are realized.

Description

Shielding case and PCBA board that PCB board was used

Technical Field

The utility model belongs to the technical field of the PCB board, concretely relates to shield cover and PCBA board that PCB board was used.

Background

With the development of the society, electronic devices are being developed toward the direction of light weight, miniaturization and diversification of functional modules, accordingly, the number of PCB boards in the electronic devices is also increased, and a great amount of electromagnetic interference inevitably exists between components in the electronic devices, so that there is a great need to add shielding cases to the components on the PCB.

The conventional shield can for a PCB board mainly includes: a welding type shielding cover, a combined type shielding cover (namely a double shielding cover with a shielding cover additionally arranged on the shielding cover), and a twisting pin type shielding cover.

For the welding type shielding case, welding is needed during installation, welding points need to be pre-buried on the PCB, and the area of the PCB which can be placed is occupied, so that the welding type shielding case is obviously inconvenient to install and disassemble; the combined shielding case has large thickness, is not beneficial to the development of light weight, thinness and miniaturization of electronic equipment, and is inconvenient to use; the twisting pin type shielding case needs twisting pins to ensure connection when being installed, and also needs twisting pins to be detached when being detached, so that the installation and the detachment are inconvenient, and the twisting pins have the hidden trouble of breaking after being detached for a plurality of times.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shielding cover for a PCB board, which solves the problem that the prior shielding cover is inconvenient to install and disassemble; a second object of the present invention is to provide a PCBA board.

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

the utility model provides a shield cover that PCB board was used, includes the shield cover body, the edge downwardly extending forms annular limit body respectively of shield cover body, the other end of limit body is open portion, be equipped with more than one joint portion on the limit body.

Preferably, the clamping portion comprises an elastic member with elasticity, wherein the elastic member is in the shape of an arc plate.

Preferably, the clamping portion further comprises a straight section, one end of the straight section is connected with the side body, the other end of the straight section is connected with the elastic piece, and the length of the straight section is not larger than the thickness of the PCB.

Preferably, the arc height of the elastic member is greater than the thickness of the side body.

Preferably, the utility model provides a shield cover that PCB board was used still includes first rib, first rib is located the limit body with junction between the joint portion.

Preferably, the utility model provides a shield cover that PCB board was used still includes the second rib, the second rib is located on the shield cover body.

Preferably, the open part is a smooth surface, and the edge is arc-shaped; the opening part is set to be a smooth surface, and the contact part of the shielding cover and the PCB is ensured not to scratch the PCB.

Preferably, at least the shielding case body is made of metal; at least the shield body is made of metal, which is utilized to dissipate heat of the components covered by the shield, and the metal includes but is not limited to aluminum, copper or other known metals.

As a second aspect of the present invention, a PCBA board includes a PCB board and the above-mentioned shield case; the PCB board is provided with a through hole, the clamping part is clamped on the through hole and fixes the shielding cover and the PCB board, and the other end of the edge body of the shielding cover is attached to the surface of the PCB board.

Preferably, the width of the through hole is greater than the thickness of the clamping portion and less than the arc height of the elastic piece.

The utility model discloses a shield cover and PCBA board that PCB board was used, its beneficial effect is: the installation and the disassembly are simple, the use is convenient, and the safety and the reliability are realized; the concrete body is as follows:

the shielding cover comprises a clamping part and a clamping part, wherein the clamping part comprises an elastic piece, particularly an elastic piece; similarly, when the clamping part is disassembled, the elastic part in the clamping part is withdrawn from the through hole only by pressing the clamping part from the other surface, so that the obvious assembly and disassembly are simple and convenient, and tools are not needed.

Secondly, the straight section is additionally arranged on the clamping part, and after the shielding cover is installed on the PCB, the stress of the elastic part on the through hole on the PCB can be reduced to the maximum extent by utilizing the straight section, so that the possibility of damaging or even destroying the PCB due to the use of the shielding cover is avoided; the strength of the shielding cover is ensured by using the reinforcing ribs; meanwhile, at least the shielding case body in the shielding case is made of metal, so that the heat dissipation of the covered element is ensured, and the shielding case is obviously safe and reliable.

And thirdly, the open part of the shielding cover is made into a smooth surface, so that the contact part of the shielding cover and the PCB is ensured not to scratch the PCB, and the safety is further improved.

Drawings

FIG. 1 is a schematic structural view of a PCBA board of the present invention;

FIG. 2 is a rear view of a PCBA board of the present invention;

FIG. 3 is an exploded view of a PCBA board of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

Wherein: 1. a shield case body; 2. a side body; 21. an opening portion; 3. a clamping part; 31. a straight section; 32. an elastic member; 4. a first reinforcing portion; 5. a PCB board; 6. and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, a PCBA board includes a PCB board 5, a shield case; the PCB board 5 is provided with a through hole 6, and the shielding cover is clamped on the through hole 6.

Further, in this embodiment, as shown in fig. 1 and fig. 2, a shielding case for a PCB 5 includes a shielding case body 1, edges of the shielding case body 1 respectively extend downward to form annular side bodies 2, another end of the side body 2 is an open portion 21, the open portion 21 is provided with at least two clamping portions 3 in the same direction as the side bodies 2, and the shielding case is clamped on the PBC board 5 through the clamping portions 3; in the drawings of the present embodiment, the engaging portion 3 is provided on the opening portion 21, and actually, the engaging portion 3 may be provided on both sides of the side body 2.

Further, in the present embodiment, as shown in fig. 2 and fig. 3, the clamping portion 3 includes an elastic member 32 having elasticity, wherein the elastic member 32 has an arc-shaped plate shape; the clamping part 3 is provided with an elastic part 32, and the elastic part 32 can penetrate through the through hole 6 by applying certain external force to the shielding cover, such as pressing the shielding cover; meanwhile, the elastic member 32 has elasticity, and it is ensured that only the end portion of the clamping portion 3, that is, one end of the elastic member 32 is aligned with the through hole 6, in the installation process, the through hole 6 forces the elastic member 32 to deform, so that the elastic member can easily pass through the through hole 6, and the elastic member 32 can restore to the original state, so that the elastic member 32 can ensure that the shielding case is firmly clamped on the PCB 5.

Further, in this embodiment, the two ends of the elastic element 32 are located on the same plane as the corresponding side body 2, so that the elastic element 32 can smoothly pass through the through hole 6 under the limitation of the through hole 6 when an external force is applied to the shielding case after the end of the elastic element 32 enters the through hole 6 during the installation process.

Further, in this embodiment, as shown in fig. 2 to 4, the clamping portion 3 further includes a straight section 31, one end of the straight section 31 is connected to the side body 2, the other end is connected to the elastic member 32, and the length of the straight section 31 is not greater than the thickness of the PCB 5; after the shield case is assembled on the PCB, the elastic member 32 only needs to contact with the opening of the through hole 6, and the stability of the shield case can be ensured, so that the elastic acting force of the elastic member 32 on the through hole 6 is reduced or even eliminated by adding the straight section 31.

Further, in the present embodiment, the arc height of the elastic member 32 is greater than the thickness of the side body 2; as is well known, the arc height is the vertical distance from the midpoint of an arc, i.e., the top of the arc, to the connecting line between the two ends of the arc, i.e., the chord; the arc height is larger than the thickness of the side body 2, namely, the thickness of the side body 2 is reduced as much as possible, so that the contact area between the shielding cover and the PCB 5 is reduced, and correspondingly, the utilization area of the PCB is enlarged to the maximum extent.

Further, in this embodiment, as shown in fig. 4, the shielding case further includes a first reinforcing portion 4, where the first reinforcing portion 4 is disposed at a connection position of the side body 2 and connected to the clamping portion 3; through set up first rib 4 on the side body 2 at joint portion 3 department, at installation or dismantlement in-process, side body 2 can not warp because of the extrusion of through-hole 6 to elastic component 32, and wherein, first rib 4 includes the structure that current known can increase plane intensity such as stamping groove, strengthening rib.

Further, in this embodiment, the shield case further includes a second reinforcing portion (not shown), and the second reinforcing portion is disposed on the shield case body 1; since the components on the PCB 5 are not interfered by external rf signals, the shielding cover is fastened to the corresponding components, and in order to prevent the components covered from being damaged by misoperation due to impact on the shielding cover during the assembly process, a second reinforcing part may be disposed on the shielding cover body 1 to enhance the strength of the shielding cover body 1, wherein the second reinforcing part includes a stamping groove, a reinforcing rib, and other structures known in the art that can increase the planar strength.

Further, in the present embodiment, the opening portion 21 is a smooth surface, and the edge is arc-shaped; wherein the open portion 21 is provided as a smooth surface, ensuring that the portion of the shield case in contact with the PCB 5 does not scratch the PCB 5.

Further, in this embodiment, at least the shield case body 1 is made of metal; at least the shield case body 1 is made of metal, which is used for dissipating heat of the components covered by the shield case, and the metal includes but is not limited to aluminum, copper or other known metals.

A PCBA board comprises a PCB board 5 and a shielding case; the PCB 5 is provided with a through hole 6, the shielding cover is fixed with the PCB 5 by being clamped on the through hole 6 through the clamping part 3, the shielding cover is attached to the surface of the PCB through the opening part 21, and the shielding cover is reversely clamped on the PCB 5; wherein, the width of through-hole 6 is greater than the thickness of joint portion 3, and is less than the arc height of elastic component 32, the arc height of elastic component 32 are greater than the width of through-hole 6, and the shield cover is installed on PCB board 5 after, just can dismantle by using external force.

The shield cover and PCBA board that PCB board 5 that this embodiment provided used, its beneficial effect is: the installation and the disassembly are simple, the use is convenient, and the safety and the reliability are realized; the concrete expression is as follows:

firstly, the clamping part 3 on the shielding cover comprises an elastic element 32, particularly the elastic element 32 with elasticity, when the shielding cover is installed, only the end part of the clamping part 3 needs to be aligned to the through hole 6 on the PCB 5, the through hole 6 can generate a certain acting force on the elastic element 32 of the clamping part 3 by pressing the shielding cover, so that the elastic element 32 generates deformation and passes through the through hole 6, and after the elastic element 32 passes through the through hole 6, the acting force of the through hole 6 on the elastic element 32 can firmly clamp the shielding cover on the PCB 5; similarly, when disassembling, only the clamping part 3 needs to be pressed from the other surface, so that the elastic part 32 in the clamping part 3 can be withdrawn from the through hole 6, thereby obviously simplifying the assembly and disassembly without tools.

Secondly, the straight section 31 is additionally arranged on the clamping part 3, after the shielding cover is installed on the PCB, the stress of the elastic piece 32 on the through hole 6 on the PCB 5 can be reduced to the maximum extent by utilizing the straight section 31, and the possibility that the PCB 5 is damaged or even destroyed due to the use of the shielding cover is avoided; the strength of the shielding cover is ensured by using the reinforcing ribs; meanwhile, at least the shielding case body 1 in the shielding case is made of metal, so that the heat dissipation of the covered element is ensured, and the shielding case is obviously safe and reliable.

Thirdly, the opening part 21 of the shielding cover is made into a smooth surface, so that the contact part of the shielding cover and the PCB 5 is ensured not to scratch the PCB 5, and the safety is further improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention. Such modifications and finishes are also to be considered as the scope of protection of the present invention.

Claims

1. The utility model provides a shield cover that PCB board was used which characterized in that: including the shield cover body, the edge of shield cover body downwardly extending forms annular limit body respectively, the other end of limit body is open portion, be equipped with more than one joint portion on the limit body.

2. The shield can for a PCB board as claimed in claim 1, wherein: the clamping portion comprises an elastic piece with elasticity, wherein the elastic piece is arc-shaped plate-shaped.

3. A shield can for a PCB as recited in claim 2, wherein: the clamping part further comprises a straight section, one end of the straight section is connected with the edge body, the other end of the straight section is connected with the elastic piece, and the length of the straight section is not larger than the thickness of the PCB.

4. The shield can for a PCB board as claimed in claim 2, wherein: the arc height of the elastic piece is larger than the thickness of the side body.

5. The shield can for a PCB board as claimed in claim 1, wherein: still include first rib, first rib locates the side body with the junction between the joint portion.

6. The shield can for a PCB board as claimed in claim 1, wherein: the shielding case further comprises a second reinforcing part, and the second reinforcing part is arranged on the shielding case body.

7. The shield can for a PCB board as claimed in claim 1, wherein: the open part is a smooth surface, and the edge is arc-shaped.

8. The shield can for a PCB board according to any one of claims 1 to 7, wherein: at least the shielding case body is made of metal.

9. A PCBA board characterized by: comprising a PCB board and a shielding cage according to any of claims 1-8; the PCB board is provided with a through hole, the clamping part is clamped on the through hole and fixes the shielding cover and the PCB board, and the other end of the edge body of the shielding cover is attached to the surface of the PCB board.