82results about How to "Prevent electromagnetic leakage" patented technology

A wireless IC device includes a wireless IC chip, a power supply circuit board upon which the wireless IC chip is mounted, and in which a power supply circuit is provided, the power supply circuit includes a resonant circuit having a predetermined resonant frequency, and a radiation pattern, which is adhered to the underside of the power supply circuit board, for radiating a transmission signal supplied from the power supply circuit, and for receiving a reception signal to supply this to the power supply circuit. The resonant circuit is an LC resonant circuit including an inductance device and capacitance devices. The power supply circuit board is a multilayer rigid board or a single-layer rigid board, and between the wireless IC chip and the radiation pattern is connected by DC connection, magnetic coupling, or capacitive coupling.

A staggered embedded type casing is provided. The staggered embedded type casing includes a first casing and a second casing combine together to form a casing body. The first casing has a first surface and a first side. The second casing has a second surface and a second side. The first surface and the second surface are coplanar. A plurality of first embedded portions protrudes from the first side of the first casing and extends to the bottom of the second surface. A plurality of second embedded portions protrudes from the second side of the second casing and extends to the bottom of the first surface. The first embedded portions and the second embedded portions are staggered.

The invention discloses a ruggedized computer display screen electromagnetic compatibility processing method, and belongs to the display screen electromagnetic compatibility processing technology field. The problems are solved that electromagnetic leakage is easy to cause and the electromagnetic shielding reliability is lowered during display screen electromagnetic compatibility processing. The technical scheme is as follows: a structural form combined with a liquid crystal screen front cover, an electromagnetic shielding conducting adhesive, a shielding silk screen and conductive foam is employed, and the method comprises the following steps: firstly, a boss is reserved in a position, where shielding glass is installed, of the liquid crystal screen front cover, and a square groove is processed on the boss; secondly, the shielding glass exposed from the shielding silk screen is fixed on the liquid crystal screen front cover by conductive double faced adhesive tapes, and the shielding and the boss are level; thirdly, the electromagnetic shielding conducting adhesive is painted inside the square groove; fourth, one side, with a binder, of the conductive foam is connected with the shielding silk screen, the shielding silk screen is pressed into the square groove in a manner of pressing the conductive foam, and after the electromagnetic shielding conducting adhesive is cured, tight contact of the shielding silk screen and the shielding glass is achieved.

The invention provides a cabinet capable of electromagnetic shielding. The cabinet comprises a shielding cabinet body, a cable assembly and a connector, the connector is in connection and communication with external equipment of the shielding cabinet body, the connector is connected with the output end of the cable assembly, a shielding layer of the cable assembly is provided with a flange assembly which prevents the shielding layer from electromagnetic leakage, the shielding cabinet body is provided with through holes through which the cable assembly penetrates, and the flange assembly is mounted at the positions of the through holes in a sealed manner. The cabinet can prevent transmission signals from interference, and the installation position of the connector can be changed.