34results about "Ventilation panels with screening provisions" patented technology

In one embodiment, an enclosure device for a printed circuit board (PCB) includes: an enclosure wall structure enclosing an enclosure interior which has a PCB space in which to dispose the PCB, the enclosure wall structure including therein an internal geometry of a monolithic heat exchanger core of a monolithic heat exchanger having a plurality of internal channels, the enclosure wall structure including one or more vents; and one or more fans configured to drive air via one or more inlets from an enclosure exterior outside of the enclosure wall structure through the internal channels and out of the one or more vents. The enclosure wall structure is configured to block air flowing through the internal channels from entering the enclosure interior.

The present technology relates to a breather assembly. The breather assembly has an assembly body having a coupling structure configured to be coupled to a housing, an assembly opening, and an environmental opening. The assembly body is configured to define an airflow pathway between the assembly opening and an outside environment through the environmental opening. A conductive shield is coupled to the assembly body and disposed across the assembly opening. The conductive shield defines a portion of the airflow pathway. The conductive shield is configured to be in conductive communication with the housing in response to the coupling structure being coupled to the housing.

A fan guard that includes an array of openings disposed adjacent to one another along a plane to enable flow of air directed transverse to the plane, segments that each include a face extending along the plane and a thickness extending transverse to the plane, and flanges connected to the segments to cooperatively form the array of openings. Each flange includes a depth extending transverse to the plane, the depth being greater than the thickness of each segment of the plurality of segments.

An intelligent cabinet (1) comprises a housing (2) with an internal cavity (2a) and a separate compartment (2b). At least one RFID reader antenna (32) is arranged within the internal cavity (2a), and a cooling and / or ventilation arrangement (4) is arranged in the separate compartment (2b), outside the internal cavity (2a). At least one passage (5) is provided to allow air to circulate between the internal cavity (2a) and the cooling and / or ventilation arrangement (4). The internal cavity (2a) and the compartment (2b) are separated by an internal wall (6) within the housing (2), wherein the passage (5) comprises a plurality of openings (7a, 7b) through the internal wall (6). The openings are arranged directly in the internal wall (6) or in a separate part (8a, 8b) being connected to the internal wall. Each of the openings (7a, 7b) have a maximal extension in the range of 1-20 mm, and preferably 5-15 mm, and at least the surface of the internal wall (6) and / or the separate part (8a, 8b) comprises a conductive material. Hereby, the openings allow a flow of air through the openings, and at the same time provides attenuation or blocking of RF signals.

A fan guard that includes an array of openings disposed adjacent to one another along a plane to enable flow of air directed transverse to the plane, segments that each include a face extending along the plane and a thickness extending transverse to the plane, and flanges connected to the segments to cooperatively form the array of openings. Each flange includes a depth extending transverse to the plane, the depth being greater than the thickness of each segment of the plurality of segments.

A fan silencer module includes a housing having a first end of the housing, a second end of the housing, and an interior surface between the first end of the housing and the second end of the housing. Acoustic absorbing material is disposed on the interior surface. A honeycomb air flow director is disposed at the second end of the housing. And an electromagnetic interference gasket surrounds an outer edge of the honeycomb air flow director. In an embodiment, a depth of the electromagnetic interference gasket is at least as deep as a depth of the honeycomb air flow director. Also provided is a handle, and a latch actuator, to enable removal and replacement of the fan silencer module and an associated fan module from a chassis.

The thermal assembly has a shield portion and a heat exchanger portion. The shield portion includes a plurality of honeycomb structures adapted to block radio frequency radiation (RF) having a frequency within a target frequency range, and the heat exchanger portion includes a plurality of elongated channels, each of the elongated channels being physically connected to and in fluid communication with at least one corresponding honeycomb structure of the plurality of honeycomb structures.

An electronic apparatus includes: a chassis formed of a conductive member and including an opening; a radiation source arranged in the chassis and radiating noise electric waves; and a conductor formed of a conductive member and arranged on a same side of the radiation source as the opening with at least a part of the conductor overlapping the opening in a plan view of the opening. The conductor has one end electrically connected to the chassis and the other end as an electrically open end.

This application provides a communication device. The communication device includes a circuit board assembly and a shielding and heat dissipation assembly. The circuit board assembly includes multiple board groups arranged sequentially along a vertical direction. The multiple board groups are electrically connected to each other. The shielding and heat dissipation housing includes a first shielding cavity, a second shielding cavity, and a first heat sink. Along the vertical direction, the circuit board assembly is located between the first shielding cavity and the second shielding cavity. The first heat sink is disposed on the side of the first shielding cavity facing away from the circuit board assembly. A first receiving space is provided within the first shielding cavity. A portion of the circuit board assembly is located within the first receiving space. A second receiving space is provided within the second shielding cavity. A portion of the circuit board assembly is located within the second receiving space. Multiple thermally conductive bumps are provided on the opposing surfaces of the first and second shielding cavities. The thermally conductive bumps are in contact with the circuit board assembly. The communication device of this application can solve the problem of large size caused by heat dissipation and radiation shielding treatment in existing communication devices.

An intelligent cabinet (1) comprises a housing (2) with an internal cavity (2a) and a separate compartment (2b). At least one RFID reader antenna (32) is arranged within the internal cavity (2a), and a cooling and / or ventilation arrangement (4) is arranged in the separate compartment (2b), outside the internal cavity (2a). At least one passage (5) is provided to allow air to circulate between the internal cavity (2a) and the cooling and / or ventilation arrangement (4). The internal cavity (2a) and the compartment (2b) are separated by an internal wall (6) within the housing (2), wherein the passage (5) comprises a plurality of openings (7a, 7b) through the internal wall (6). The openings are arranged directly in the internal wall (6) or in a separate part (8a, 8b) being connected to the internal wall. Each of the openings (7a, 7b) have a maximal extension in the range of 1-20 mm, and preferably 5-15 mm, and at least the surface of the internal wall (6) and / or the separate part (8a, 8b) comprises a conductive material. Hereby, the openings allow a flow of air through the openings, and at the same time provides attenuation or blocking of RF signals.

The invention discloses an anti-electromagnetic radiation power supply and distribution control box shell structure which structurally comprises a main body, a box door, a warning mark and heat dissipation openings, the box door is arranged at the front end of the main body, the warning mark is located on the end face of the box door, and the heat dissipation openings are located on the end faces of the two sides of the main body; the main body comprises a supporting base, a mounting plate and a shell structure, the supporting base is arranged at the inner bottom end of the main body, the mounting plate is vertically mounted at the top of the supporting base, and the shell structure is arranged at the inner side end of the main body; according to the invention, electromagnetic radiation is isolated through the three isolation plates to prevent radiation diffusion from affecting normal work of a power system, and the interior of the main body can be ventilated through the two ventilation structures, so that air flow can flow to the outside of the heat dissipation port, and a heat dissipation effect on electronic components is achieved; and the protective net cover can prevent mosquitoes from entering the main body to interfere with the normal work of the electronic components.

The invention discloses an electromagnetic shielding ventilation device. The electromagnetic shielding ventilation device comprises an upper bottom plate which is used for totally reflecting electromagnetic waves; the lower bottom plate is used for ventilation; the unequal-distance spiral structure is located between the upper bottom plate and the lower bottom plate, and the unequal-distance spiral structure is used for reflecting and consuming electromagnetic waves of different frequencies. Through the unique spiral shape design, electromagnetic waves can be effectively reflected and dissipated, high-frequency broadband electromagnetic shielding is achieved, meanwhile, a large ventilation caliber can be achieved through the spiral structure, and the good ventilation effect is achieved.

To provide electronic equipment capable of reducing a noise radio wave leaking out without employing a structure which shields an opening part of an enclosure with a conductive member.SOLUTION: An enclosure 4 is formed of an electrically conductive member, and has an opening part 4b. A carrier part 2 is arranged in the enclosure 4, and radiates a noise radio wave. The electrically conductive part 6 is formed of an electrically conductive member, and is arranged on the side of the opening part 4b about the carrier part 2 to overlap at least in part with the opening part 4b in plan view, one end being electrically connected to the enclosure 4 and the other end being an electrically open end.SELECTED DRAWING: Figure 2

Described herein is an enclosure comprising at least one planar portion with an array of extruded holes disposed thereon. The holes are extruded along an axis normal to a plane of the planar portion and configured as apertures for heat transfer through the enclosure. The holes have an inner diameter and have a height along the axis relative to the plane, which provide greater stiffness to the planar portion compared to non-extruded holes. Techniques for producing enclosures with extruded holes such as this are also described. A schematic of an array of extruded holes can be generated by determining, based on a predetermined pilot hole diameter, a thickness of an associated portion of sheet metal, and a hole diameter, an extruded height usable for the extruded holes in the schematic. This may allow for simple conversion from an array of non-extruded thru holes to an array of extruded holes.

A thermal management device includes a fin pack and a plurality of channels. The fin pack has a hot side and a cold side, and the plurality of channels in the fin pack provide fluid communication from the hot side to the cold side. The channels have a transverse dimension and a longitudinal dimension, and the longitudinal dimension is at least 2.5 times the transverse dimension.

Described herein is electromagnetic shielding that is configured to attenuate electromagnetic interference (EMI) by at least a threshold amount when the EMI has a frequency within a predefined frequency range. The electromagnetic shielding includes a layer of metal, such as aluminum foil, and a layer of thermoplastic polymer fabric (such as woven polyethylene fabric), where the electromagnetic shielding has several apertures that extend therethrough. The electromagnetic shielding is at least partially draped over electronic equipment that is to be shielded from EMI.

The invention therefore relates to a contact arrangement comprising at least an electrically conductive housing, a circuit carrier received in the housing, and a contact element, in particular made of a spring sheet. The contact element is arranged between the housing and the circuit carrier and electrically bridges the connection of a ground line of the circuit carrier to the housing. A force-actuated galvanic contact is thus formed at least between the contact element and the ground line. For this purpose, the contact element itself has a flexible spring arm, which is designed as a bending beam fixed at one or both sides in a respective spring base. Furthermore, at least one contact point is integrally formed on the spring arm in a resiliently yielding region of the spring arm, spaced apart from the spring base.During assembly, and especially in the final assembly position of the circuit carrier, each sheet metal plane of the spring base and the contact tip is oriented perpendicular to the contact side.

Embodiments presented in this disclosure relate to the reduction of radiated emissions in electronic devices through the use of a mesh with a sparse cell structure. One embodiment includes a conductive panel comprising a plurality of ventilation holes, each ventilation hole having an inner perimeter. A mesh is attached to the conductive panel, the mesh comprising a plurality of cells, where each respective cell encloses the inner perimeter of a respective ventilation hole to form a conductive barrier around each respective ventilation hole.

An EMC scattering shield apparatus and method of use is provided. The EMC scattering shield apparatus includes a mounting feature that permits the EMC scattering shield apparatus to attach to an external component. The EMC scattering shield apparatus includes an EMC scattering shield to scatter energy that may be emitted from the product and to provide immunity by scattering energy within the environment. The EMC scattering shield apparatus an extension arm configured to position the EMC scattering shield at a desired distance away from the external component. The EMC scattering shield apparatus can include a rotation hinge that permits the EMC scattering shield to rotate away from the external component

A thermal management device includes a fin pack and a plurality of channels. The fin pack has a hot side and a cold side, and the plurality of channels in the fin pack provide fluid communication from the hot side to the cold side. The channels have a transverse dimension and a longitudinal dimension, and the longitudinal dimension is at least 2.5 times the transverse dimension.

Methods and systems for an electronic package for a vehicle are provided. In one example, the electronic package includes a chassis having a plurality of bent tabs forming a plurality of respective vent openings in the chassis, and a circuit board coupled to the chassis, wherein the bent tabs directly contact the circuit board.

The invention relates to a housing (1) suitable for receiving a first power electronic component (2) and at least one second power electronic component (3), wherein the housing (1) is configured to shield electromagnetic radiation from the inside of the housing to the outside, and wherein the housing (1) - a first receiving space (4) within which the first power electronic component (2) can be received, - at least a second receiving space (5) within which the second power electronic component (3) can be received, as well as - a separation arrangement (6) configured to separate the first receiving chamber (4) from the second receiving chamber (5) and to shield electromagnetic radiation, wherein the receiving chambers (4, 5) are configured to be permeated by a cooling fluid, and wherein the separation arrangement (6) is formed by at least one fluid-permeable labyrinth separation structure (60) or has at least one fluid-permeable labyrinth separation structure (60), wherein the labyrinth separation structure (60) is configured to form a labyrinthine flow passage for the cooling fluid.

The present disclosure envisages a hybrid filter assembly (100A, 100B, 100C, 100D) for mitigating electromagnetic interference (EMI) and sound attenuation. The hybrid filter assembly (100A, 100B, 100C, 100D) inludes a honeycomb structure (10A, 10B, 10C, 10D, 10E, 10F, 10G, 10H) and the louver structure (20A, 20B, 20C). The honeycomb structure (10A, 10B, 10C, 10D, 10E, 10F, 10G, 10H) is made from of a metallic material for electromagnetic interference (EMI) attenuation. The honeycomb structure (10A, 10B, 10C, 10D, 10E, 10F, 10G, 10H) includes a honeycomb core, a frame for supporting the honeycomb core, and a protective screen. The louver structure (20A, 20B, 20C) integrated with the honeycomb structure (10A, 10B, 10C, 10D, 10E, 10F, 10G, 10H). The louver structure (20A, 20B, 20C) is configured for sound attenuation and includes a sound-absorbing material consisting of at least one of foam (22), cork (24), and fire-resistant (FR) cotton fiber (26).

A propulsion system for an aerial vehicle with a suppressed radar observability comprises one or more rotors (100) with rotor blades (no); a fuselage (200), a tubular channel structure (300), and a shielding structure (400). The fuselage (200) provides a support for the one or more rotors (100) and at least one integrated engine (210) to drive the one or more rotors (100), wherein the rotor blades (110) protrude radially outwards from the fuselage (200). The tubular channel structure (300) circumferentially extends around the fuselage (200) and covers the protruding rotor blades (110), wherein the tubular channel structure (300) includes an inlet (310) and an outlet (320) between which the rotor blades (110) are arranged to drive a propulsion airflow (F). The shielding structure (400) is formed at the inlet (310) and / or at the outlet (320) for radar signals to suppress radar detection of the rotor blades (110).

The invention discloses a high-stability high-frequency welding system electromagnetic anti-interference device, and belongs to the technical field of welding, the high-stability high-frequency welding system electromagnetic anti-interference device comprises a mounting plate, the upper surface of the mounting plate is in bolted connection with a shell, the upper surface of the mounting plate is fixedly connected with a motor, the outer wall of the shell is in bolted connection with a material box, and the surface of the shell is fixedly connected with a circulating cooling pipe; the output end of the motor is fixedly connected with a two-way lead screw, and the surface of the two-way lead screw is in threaded connection with a movable plate. According to the high-stability electromagnetic anti-interference device for the high-frequency welding system, firstly, the mounting plate is mounted in the high-frequency welding system, when the temperature in the shell is too high, the motor is started, the pressing plate does reciprocating rectilinear motion in the vertical direction, then cooling liquid in the material box does reciprocating motion in the material box and the circulating cooling pipe, and the cooling effect is achieved; meanwhile, dust on the surface of the heat dissipation opening can be cleaned, the cleaning roller rotates anticlockwise, dust cannot enter the shell, and stability of internal electronic instruments is guaranteed.

A method for managing electromagnetic interference (EMI) includes: obtaining a request; in response to the request: terminating EMI generation by EMI emitting devices in an EMI suppressed internal volume of a data processing device to place the EMI emitting devices in a quiet state; placing the EMI suppressed internal volume into an EMI suppression compromised state to obtain access to the EMI emitting devices in the quiet state; replacing one of the EMI emitting devices in the quiet state, to obtain updated EMI emitting devices, while: the EMI suppressed internal volume is in the EMI suppression compromised state, and the EMI emitting devices are in the quiet state; placing the EMI suppressed internal volume into an EMI suppressed state after replacing the one of the EMI emitting devices; and enabling EMI generation by the updated EMI emitting devices to place the updated EMI emitting devices into an active state.

Methods, systems, and devices for managing the operation of data processing systems are disclosed. A data processing system may include a computing device that may provide computer-implemented services. To provide the computer-implemented services, hardware components of the data processing system may need to operate within certain thermal dissipation requirements. To regulate the temperature of the hardware components, a fan may circulate air through the data processing system when the temperatures fall outside the thermal dissipation requirements. To regulate the temperature of the hardware components more efficiently, higher air flow rates may be desired. To increase air flow rates, a three-dimensional ventilation port may be implemented to de-constrict air flow when air enters or exits the data processing system.

Methods and systems for an electronic package for a vehicle are provided. In one example, the electronic package includes a chassis having a plurality of bent tabs forming a plurality of respective vent openings in the chassis, and a circuit board coupled to the chassis, wherein the bent tabs directly contact the circuit board.