Easily-torn scribed line shielding piece for protecting electronic element of PCB (Printed Circuit Board)

Abstract

The utility model relates to an easy-to-tear scribed line shielding piece for protecting electronic components of a PCB (Printed Circuit Board), which comprises a shielding piece body (1) arranged on the PCB and a plurality of tearing parts (2) oppositely arranged on the upper side and the lower side of the shielding piece body (1) in a sunken manner, and an area enclosed by the tearing parts (2) is used as a maintenance part (3) for maintaining the PCB. Compared with the prior art, the easy-to-tear scribed line shielding piece provided by the utility model is provided with the tearable area consisting of the tearing part as the maintenance part, and the tearable area is used for checking and maintaining components on a PCB (Printed Circuit Board). Therefore, the problem that when a traditional two-in-one patch piece or a cover support buckling piece is maintained, the patch piece needs to be damaged can be avoided, meanwhile, the rejection rate of parts is reduced, and cost and resource waste are reduced. After maintenance is finished, the copper foil can be continuously used only by additionally arranging the copper foil in the tearing area.

Description

Technical Field

[0001] This utility model relates to the field of electronic processing technology, and in particular to an easy-tear etched shielding for protecting electronic components on a PCB board. Background Technology

[0002] Shielding components are tools used to shield electronic signals. They play a role in absorbing, reflecting, and canceling out external and internal electromagnetic interference waves, thus reducing interference. Shielding components are typically made of 0.1-0.4mm thick material, with nickel plating being a metal that easily solders. Currently, traditional structures consist of a two-in-one surface mount component or a cover / support fastener. The two-in-one surface mount component and support are made of nickel plating and soldered onto the PCB. Because nickel plating has solderability, the support fastener has an additional cover. The cover, via a protrusion, engages with a hole in the surface mount component. The surface mount component needs to have some cutout areas to facilitate the repair of electronic components.

[0003] Because the function of a two-in-one surface mount component or a cover bracket fastener is to shield signal interference, it cannot be hollowed out. Therefore, an additional cover is assembled on top to isolate external interference. However, when electronic components need repair, the traditional two-in-one surface mount component structure is cumbersome to disassemble and is not easy to repair. If the component inside the surface mount component is faulty, the shielding cover needs to be removed during repair. The surface mount component usually needs to be pried open and cut off to be completely removed, and the damaged surface mount component cannot be soldered back and must be scrapped. After repair, a new surface mount component needs to be replaced and manually soldered on, which is time-consuming, labor-intensive, and carries the risk of damaging the PCB and rendering it unusable. Although traditional cover bracket fasteners allow the PCB to be inspected after removing the cover, the additional fastening process after the bracket is mounted is time-consuming and wasteful of materials, and there is also the risk of the cover falling off due to poor fastening. Therefore, in the industry of shielding electronic signals, it is imperative for shielding components to be easy to disassemble and assemble, which is a technical problem that R&D personnel urgently need to solve. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the existing technology and provide an easy-tear etched shield for protecting electronic components on a PCB board.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] The technical solution of this utility model is to provide an easy-tear etched shielding component for protecting electronic components on a PCB board, including a shielding component body disposed on the PCB board and a plurality of tear-off portions disposed on the upper and lower sides of the shielding component body, wherein the area enclosed by the tear-off portions serves as a repair area for repairing the PCB board.

[0007] In some specific embodiments, the tearing portion is wider at the top and narrower at the bottom.

[0008] In some specific embodiments, the angle between the sidewall of the tearing portion and the bottom of the tearing portion is 30° to 60°.

[0009] In some specific embodiments, the width of the bottom of the tearing portion is 0.02 to 0.08 mm.

[0010] In some specific embodiments, the distance between the bottoms of the two tear-off portions is 0.05 to 0.8 times the thickness of the shielding body.

[0011] In some specific embodiments, the thickness of the shielding body is 0.1 to 0.4 mm.

[0012] In some specific embodiments, the distance between the bottoms of the two tear-off portions is 0.03 to 0.07 mm.

[0013] In some specific embodiments, the area of ​​the maintenance section is 20% to 80% of the area of ​​the shielding body.

[0014] In some specific embodiments, the tearing portion is formed by stamping.

[0015] In some specific embodiments, the shielding component body is a copper patch.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) Easy to install and disassemble: The easy-tear etched shielding part of this utility model adopts a tearable two-in-one patch, which makes it easy to tear open the easy-tear etched area during maintenance, avoiding the problems of difficult maintenance, time-consuming and material-intensive maintenance of traditional two-in-one patch or cover bracket fastener.

[0018] (2) Continued Use: The new easy-tear etched shielding component of this utility model has a tearable area composed of tear-off sections as a repair section for the inspection and repair of components on the PCB board. This avoids the problem of needing to damage the surface mount component when repairing traditional two-in-one surface mount components or cover bracket fasteners, while reducing the scrap rate of parts and lowering costs and resource waste. After the inspection is completed, only copper foil needs to be added to the tearable area for continued use.

[0019] (3) Guaranteeing signal shielding function: The new type of easy-tear etched shielding component of this utility model guarantees the signal shielding function of the new type of easy-tear etched shielding component.

[0020] (4) Structural optimization: The easy-tear etched shield of this utility model is a stamped structure. It adds stamped easy-tear etched lines to the traditional two-in-one patch component and reduces the cover and fastening process of the traditional cover bracket fastener. These structural optimizations can improve the stability and reliability of the easy-tear etched shield.

[0021] (5) The easy-tear etched shielding component of this utility model reduces the cost of subsequent PCB motherboard repair and other aspects. After the PCB patch production test is qualified, it can be directly assembled into a finished product. When there is a problem in the test and repair is required, the easy-tear etched area can be directly peeled off from the patch component, without the need to blow off the patch component at high temperature. This avoids the motherboard being damaged when the patch component is blown off at high temperature, greatly reduces the failure rate caused by repair, and plays a direct protective role for the PCB motherboard.

[0022] At the same time, it enhances the competitiveness of the communication equipment, computer and other electronic equipment manufacturing industry, comprehensively reduces PCB motherboard repair costs, reduces the risk of PCB motherboard scrapping, improves production efficiency, and plays a direct role in improving the technical skills of the communication equipment and computer industries. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 for Figure 1 A magnified view of a portion of point AA.

[0025] The markings in the image are as follows:

[0026] 1 is the shielding component body, 2 is the tear-off part, and 3 is the repair part. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] In the following embodiments, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0031] Example 1:

[0032] like Figures 1-2 As shown, an easy-tear etched shielding component for protecting electronic components on a PCB board includes a shielding body 1 disposed on the PCB board and several tear-off portions 2 recessed on the upper and lower sides of the shielding body 1. The area enclosed by the tear-off portions 2 serves as a repair section 3 for repairing the PCB board.

[0033] In this technical solution, when the PCB board is in normal use, the shielding component body 1 can completely cover the PCB board, ensuring the signal shielding function. When the PCB board needs repair, a notch can be created by gently prying open a section of the tear-off part 2 with tweezers without damaging the shielding component body 1. Then, the pre-set tear-off part 2 can be torn open from the notch with needle-nose pliers to expose the repair part 3 for inspection. After the PCB board is repaired, copper foil can be added to the repair part 2 to cover the PCB board, thereby ensuring signal shielding.

[0034] This avoids the problem of damaging the shielding component during the repair of traditional two-in-one shielding components, while reducing the scrap rate of parts, lowering costs and reducing resource waste.

[0035] To facilitate tearing the tear section 1 and ensure that the flange after tearing the tear section 1 does not exceed 0.08 mm, the tear section 2 is wider at the top and narrower at the bottom. The angle between the sidewall of the tear section 2 and the bottom of the tear section 2 is 30° to 60°, and the width of the bottom of the tear section 2 is 0.02 to 0.08 mm. The distance between the bottoms of two relative tear sections 2 is 0.05 to 0.8 times the thickness of the shielding body 1; for example, the thickness of the shielding body 1 is 0.1 to 0.4 mm. The distance between the bottoms of two relative tear sections 2 is 0.03 to 0.07 mm.

[0036] The area of ​​the repair section 3 is 20% to 80% of the area of ​​the shielding body 1, which facilitates the inspection and repair of the PCB board after tearing open the tear section 1.

[0037] The tear-off section 2 is formed by stamping and is integrally formed with the shielding body 1. Adding the stamped tear-off section 2 to a traditional two-in-one patch component reduces cost and resource waste.

[0038] The shielding body 1 is a copper patch, such as a nickel plating patch.

[0039] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A tear-off etched shielding for protecting electronic components on a PCB board, characterized in that, It includes a shielding body (1) disposed on a PCB board and several tear-off portions (2) that are recessed on the upper and lower sides of the shielding body (1). The area enclosed by the tear-off portions (2) serves as a repair section (3) for repairing the PCB board.

2. The easy-tear engraved shielding component according to claim 1, characterized in that, The tearing part (2) is wider at the top and narrower at the bottom.

3. The easy-tear engraved shielding component according to claim 2, characterized in that, The angle between the side wall of the tearing part (2) and the bottom of the tearing part (2) is 30° to 60°.

4. The easy-tear engraved shielding component according to claim 3, characterized in that, The width of the bottom of the tearing part (2) is 0.02 to 0.08 mm.

5. The easy-tear engraved shielding component according to claim 1, characterized in that, The distance between the bottoms of the two tear sections (2) is 0.05 to 0.8 times the thickness of the shielding body (1).

6. The easy-tear engraved shielding member according to claim 5, characterized in that, The thickness of the shielding body (1) is 0.1 to 0.4 mm.

7. The easy-tear engraved shielding member according to claim 6, characterized in that, The distance between the bottoms of the two tear sections (2) is 0.03 to 0.07 mm.

8. The easy-tear engraved shielding component according to claim 1, characterized in that, The area of ​​the maintenance section (3) is 20% to 80% of the area of ​​the shielding body (1).

9. The easy-tear engraved shielding component according to claim 1, characterized in that, The tear-off portion (2) is formed by stamping.

10. The easy-tear engraved shielding member according to claim 1, characterized in that, The shielding body (1) is a copper patch.

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