Mobile phone metal shielding cover, the application of the shielding layer includes what +3.0 stamping parts design system

The hardware technicians of the manufacturer responsible for the processing of mobile phone metal screen shields said that the following aspects must be paid attention to after the design of the high-frequency transformer shielding layer is completed to ensure the effect of the application. The novel has sorted out some information, and let’s take a look at it below: First of all, for the internal shielding layer of a high-frequency transformer, the main function is not to shield the leakage magnetic field, but to shield the primary and secondary high-frequency electric field signals, so the high-frequency transformer The main function of the shielding layer is to connect to a quiet potential to ensure the connection effect of the primary ground wire and the connection effect of the high voltage end. If the copper foil shield cuts off the path of the primary and secondary stray capacitance, it will form a capacitance. When the winding shield cuts off the primary electrophoresis path, due to the difference in the number of winding turns, the effect on the winding direction and position will be very obvious. difference. It can effectively enhance the shielding effect, so the thickness of the copper foil is generally about 0.05 mm, and the width should be smaller than the width of the primary winding. Through this design method, it can be ensured that there is no short circuit at both ends of the shielding layer. In the production process, both ends of the copper foil need to be insulated with insulating tape. In the process of using the winding as the inner shield, it is necessary to use 0.1 mm~0.3 mm enameled wire for careful winding, and use the insulating tape to fix the closing position, which can be enhanced The insulation effect of the shielding layer. In the process of designing the shielding cover, since the attenuation of the shielding material must be measured according to the intensity of the magnetic field, data can be obtained, so a more suitable shielding cover should be selected. Generally speaking, the shape of the shielding cover such as rectangle, cylinder, rectangle, sphere, etc. is the most common. It is necessary to determine the magnetic flux density value when designing the shielding cover, because the distribution of the shielding material is a non-linear relationship. If the strength is relatively high or is closer to the magnetic field, this layer of material should be made of multilayer materials, and the secondary material should be made of materials with high magnetic permeability. Hardware, 15 years of focusing on mobile phone metal shields, 20,000+ sets of mold custom processing and production experience, monthly processing of 100+ sets of molds, daily production capacity of 3 million punches, stamping accuracy up to 0.01mm, and 16 quality inspections. It can quickly solve time-critical problems for you, solve stamping accuracy problems, and solve mass production quality problems. Choose, choose to rest assured!