Shielding cover is our main product of Dongguan Bosi Hardware. It is a tool used to shield electronic signals, mainly to shield the impact of external electromagnetic waves on internal circuits and the external radiation of electromagnetic waves generated inside. Some people may not be familiar with this metal stamping part. Below, the editor will introduce the shielding cover for everyone

Composition and application of shielding cover

　　shield canComposed of legs and a cover, the legs are connected to the cover in a movable manner; The hood has a spherical crown shape.

This component is mainly used in fields such as mobile phones and GPS to prevent electromagnetic interference (EMI) and provide shielding for components and LCM on PCB boards.

The material of the shielding cover is generally made of 0.2mm thick stainless steel and phosphor bronze, among which phosphor bronze is a metal shielding material that is easy to tin. When using SMT patches, the design of suction cups should be considered.

Application of shielding cover materials

Generally, Cu-C7521-H [universal material] and Cu-C7521-OH [soft material, used for deep drawing] (nickel white copper, copper nickel zinc alloy, NickelSilver) are used, t=0.2, 0.3mm; The shielding cover is generally made of stainless steel SUS304R-1/2H for bending processing and SUS304R-1/4H for deep drawing, t=0.15，0.2mm， Tin plated steel strip (tinplate), etc;

For soldering on PCBs, white copper and tin sheet can be used, and it is recommended to use white copper because it is better in soldering, heat dissipation, and steam.

Design considerations for shielding covers

The tray for placing the shielding cover has too much space for movement, which makes it easy to swing during surface mounting, resulting in inability to extract the material. The material must be placed in the tray, which has a movement space of about 1.0mm. If it is too large, the material may swing, and if it is too small, it may not be able to be retrieved.

The size of the sampling point for the shielding cover should be appropriate, preferably located in the middle of the material. The size of the sampling point should be preferably Φ 6.0mm. The larger the sampling point, the higher the stability and efficiency of the patch.

The above is what the editor introduces to you aboutWhat is a shielding cover： http://www.bosiwj.com/mp-01.html

Our company has over 200 types of shielding cover designs and on-site molds available for customers to choose from, which can effectively reduce their remaining mold making costs. We also offer German CNC micro sampling technology, which can be provided for free if needed. Welcome to click on the right for consultation and quotation. We are dedicated to serving you!