At least one shielding layer made of conductive material is formed on a body of a magnetic device to prevent magnetic fields from leaking to the outside of the magnetic device so as to reduce EMI and the size of the magnetic device.

An Electric and Magnetic Fields (EMF) protection device, includes: a metallic bottom; a metallic side extending from the metallic bottom; and a top opening, wherein the metallic bottom and the metallic side form a cylinder enclosure configured to substantially block a signal passing through the metallic side and the metallic bottom and allow the signal to pass only through the top opening.

Disclosed are a method and an apparatus for designing a magnetic shielding apparatus and a magnetic shielding apparatus. The method includes: determining a region of interest inside the magnetic shielding apparatus, the region of interest being a region where a magnetic shielding effect is expected to be achieved, and the magnetic shielding apparatus including N layers of shields disposed in a nested manner; determining a complete parameter set; and obtaining, based on the complete parameter set, a set of result parameters for describing the geometric structure, the set of result parameters that enables magnetic flux density in the region of interest to meet a preset threshold. This method not only greatly improves optimized magnetic shielding performance compared with an equal-spacing solution, but also resolves a problem that an analytical method cannot be used to optimize a magnetic shielding apparatus with a non-concentric structure.

An EMP-resistant (electromagnetic pulse-resistant) case for portable electronic devices is provided. The case includes a conductive external housing configured to enclose the electronic device. The housing includes a lower housing having a continuous connection surface. The housing also includes an upper housing having a continuous connection surface. The lower and upper housing are configured to releasably engage at the continuous connection surface. The housing includes a conductive gasket positioned at the continuous connection surface between the upper and lower housing. The case also includes a first insulative layer at least partially covering the inside surface of the upper and lower housing.

An Electric and Magnetic Fields (EMF) protection device, includes: a metallic bottom; a metallic side extending from the metallic bottom; and a top opening, wherein the metallic bottom and the metallic side form a cylinder enclosure configured to substantially block a signal passing through the metallic side and the metallic bottom and allow the signal to pass only through the top opening.

A shielded enclosure receives REID-tagged packaging from consumed medical items. The enclosure includes a housing and a lid. An opening in the lid receives the packaging into an internal space. A chute surrounds the opening and extends downward into the internal space. The chute has front, left, right, and rear walls. A hood attached to the lid surrounds the opening. An aperture in the hood allows passage of the packaging into the lid opening. The hood includes rear, right, left, and top walls. RF absorbing material covers inside surfaces of the chute and hood, including a front panel on the chute front wall, a rear panel on the hood rear wall and the chute rear wall, a left side panel on the hood left side wall and the chute left side wall, a right side panel on the hood right side wall and the chute right side wall, and a top panel on the hood top.

A shell structure includes a shell and a shielding cover. The shell has an accommodating space, the accommodating space has an inner wall, and the inner wall has a first buckling portion. The shielding cover is arranged in the accommodating space, the shielding cover has an outer wall, the outer wall corresponds to the inner wall, and the outer wall has a second buckling portion corresponding to the first buckling portion. The first buckling portion and the second buckling portion are buckled with each other to limit relative degrees of freedom of the shell and the shielding cover.

Embodiments of the present application relate to a power supply device, including a housing, a circuit board and a connecting assembly. The housing defines an accommodation space, and includes: a housing positioning component, a first opening, and a second opening. The housing positioning component is disposed in the accommodation space. The circuit board is disposed in the accommodation space, and includes: a circuit board positioning component, a power input port, and a power output port. The power input port is disposed corresponding to the first opening. The power output port is disposed corresponding to the second opening, and electrically connected to the power output port. The connecting assembly is configured to connect the housing positioning component and the circuit board positioning component, and position the circuit board in the accommodation space of the housing.

A cabinet enclosure for mounting to a vehicle and providing an inner cavity isolated from a surrounding environment. The cabinet enclosure includes a removable module including a frame and a plurality of mounts on the frame for receiving an electrical component. A housing defines the inner cavity and includes a plurality of predefined mounting locations within the inner cavity configured to receive the removable module. The housing is configured to protect the inner cavity from exposure to moisture, heat, vibration and/or electromagnetic forces. An interface element secures the housing to a vehicle.

The disclosure relates to an electronic device case assembly for providing protection against electromagnetic field radiation and microbes. The case assembly includes a case configured to receive an electronic device and have a sealed pocket. The case assembly further includes at least one electromagnetic field radiation attenuating layer. The electromagnetic field radiation attenuating layer is embedded within the sealed pocket of the case. The electromagnetic field radiation attenuating layer is made of material selected from the group consisting of aluminium, silver, copper and zinc. The case assembly further includes a coat of material selected from the group consisting of silver ions, copper ions and charcoal powder on the case in order to eliminate the microbes.