47results about "EMI leakage reduction" patented technology

There is a housing preferably for accommodating electrical components. The housing has the following: (A) at least one first housing part and at least one second housing part, which form a closed housing when assembled, (B) at least the first housing part has a circumferential edge or circumferential contour in an edge area, (C) at least one compressible element, which is at least arranged on the circumferential edge or in or on the circumferential contour, and which is arranged between the first housing part and the second housing part in the assembled state, and (D) and at least one first electrically conductive layer. The first electrically conductive layer covers the inside of the first housing part in the assembled state of the housing.

A fan with electromagnetic radiation shielding structure includes a fan impeller and a shaft seat. The fan impeller includes a metal hub, a plurality of blades circumferentially spaced on an outer surface of the metal hub, and a magnetic element provided on an inner surface of the metal hub. The shaft seat is provided at a central area with an upward projected shaft barrel, which is rotatably connected to the fan impeller and has a stator externally fitted therearound. A metal carrier is provided on the shaft seat and has a peripheral edge extended upward to form a sidewall and define an open-topped receiving space for receiving the stator therein. The metal hub and the metal carrier together define a shielding space, such that the stator is located in the shielding space and isolated from outer environment to avoid leakage of electromagnetic radiation produced by the stator.

The invention discloses an electromagnetic interference method of a charger and a GaN charger, and the method comprises the steps: arranging a multi-layer composite electromagnetic shielding structure in the charger, and enabling the multi-layer composite electromagnetic shielding structure to be used for reflecting, absorbing and buffering an electromagnetic interference signal; the layout of a power circuit in the charger is optimized so as to block electromagnetic coupling interference among different power circuit areas; filter circuits are arranged at an input port and an output port of the charger and are used for inhibiting electromagnetic interference signals; a shell of the charger is subjected to conductive coating treatment, and the conductive coating is electrically connected with a grounding system in the charger so as to form a closed electromagnetic shielding space. A complete electromagnetic interference suppression system is formed, and the problem of electromagnetic interference (EMI) generated in the working process of the charger is solved.

The invention relates to a medical device (2) comprising: an application device (6, 58) that can be brought into contact with a patient (4) to be treated, and a galvanic isolation device (8, 38, 42, 48, 52, 62) that can be connected to the application device (6, 58), wherein the isolation device (8, 38, 42, 48, 52, 62) has at least one application port (10) for connecting to the application device (6, 58) and at least one supply port (12) for connecting to a device (14), wherein the isolation device (8, 38, 42, 48, 52, 62) is configured to galvanically isolate the application port (10) from the supply port (12), characterized in that the isolation device (8, 38, 42, 48, 52, 62) has at least one first connection to the application port (10). radio unit (16) with a first antenna (17,17a) and at least one second radio unit (18) connected to the supply connection (12) with a second antenna (19, 19a), wherein the respective first antenna (17, 17a) and the respective second antenna (19, 19a) are spaced apart from each other on a support (20, 44) in a manner visibly visible to the naked eye and are preferably fixed facing each other, and wherein the at least one first radio unit (16) and the at least one second radio unit (18) are configured to transmit signals or data between the application connection (10) and the supply connection (12).

In order to improve a housing, in particular for an electrotechnical apparatus, comprising at least two housing parts which each have a connecting face, said connecting faces, in a closed state of the housing, facing one another along a connecting section, it is proposed that at least one of the at least two housing parts, along the connecting section, has at least one integrated protective section, in particular for EMC shielding and / or for mechanical protection.

The invention relates to a housing with a seal. The invention relates to a housing (1), preferably for accommodating electrical components, comprising: at least one first housing part (2) and at least one second housing part (4), which, when assembled, form a closed housing (1); wherein at least the first housing part (2) has a circumferential edge (8) or a circumferential contour in an edge region; at least one compressible element (6, 60), which is arranged at least on the circumferential edge (8) or in or on the circumferential contour and, in the assembled state, is arranged between the first housing part (2) and the second housing part (4), and at least one first electrically conductive layer (10), which is electrically conductive with respect to the first housing part (2) and the second housing part (4), is provided, the first conductive layer (10) covers an inner side (13) of the first housing part (2) in an assembled state of the housing (1).

In a housing (1), preferably for accommodating electrical components, with - at least one first housing part (2) and at least one second housing part (4), which form a closed housing (1) in an assembled state, - wherein at least the first housing part (2) has a peripheral edge (8) or peripheral contour in the edge region, - at least one compressible element (6, 60) which is arranged at least on the peripheral edge (8) or in or on the peripheral contour, and which, in the assembled state, is arranged between the first housing part (2) and the second housing part (4), characterized in that at least one first electrically conductive layer (10) is provided, wherein, in the assembled state of the housing (1), the first electrically conductive layer (10) covers the inner side (13) of the first housing part (2).

EMC housing 1 for electrical components 40, 42, 44, comprising a first electrically conducting housing part 10; a second electrically conducting housing part 20, wherein the first housing part 10 and the second housing part 20 are attached to each other at a parting line 2 of the EMC housing 1; and a retainer 30 arranged within the housing 1, wherein the retainer 30 comprises a retainer frame 34 and an electrically conductive and compressible EMC foam 32 around the outer perimeter 38 of the retainer frame 34, wherein the EMC foam 32 covers the parting line 2 of the EMC housing 1.

The invention relates to the technical field of electromagnetic shielding, and particularly provides an electronic device and a preparation method and a clamp thereof, and a shielding assembly comprises a shielding cover which is erected on a substrate to surround an electronic device on the substrate; an opening and a shielding frame forming the opening are arranged on one side, deviating from the substrate, of the shielding cover, and a groove is formed in one side, deviating from the substrate, of the shielding frame; the shielding film is arranged at the opening of the shielding cover, covers the opening and the groove in the shielding frame, and is connected with the shielding cover through welding; the groove is arranged to store welding flux used for welding. In this way, the size of the shielding assembly can be reduced.

A structure formed by placing a metal sheets one on another in a sheet-thickness direction, the metal sheets each having an electrically conductive base material covered with an insulating coating, the structure including: a protrusion provided on a first metal sheet of the metal sheets that are adjacent to each other and are fastened together with a screw, the protrusion protruding toward a second metal sheet; an elastically deformable portion provided on the metal sheet in such a manner that the elastically deformable portion surrounds the protrusion, the elastically deformable portion being elastically deformable at the time of the fastening with the screw; a protrusion disposed on the metal sheet in such a manner that the protrusion protrudes toward the metal sheet, and crosses the protrusion; and an elastically deformable portion provided on the metal sheet in such a manner that the elastically deformable portion surrounds the protrusion.

The present application provides a kind of power conversion device capable of reducing the influence of electromagnetic wave on circuit substrate.Power conversion device (1) has circuit substrate (2), power conversion module (3) is oppositely arranged with circuit substrate (2), busbar (4) is connected with power conversion module (3), shielding electromagnetic wave shielding part (5).Busbar (4) extends to opposite side (S2) from one side (S1) of circuit substrate (2) through the side edge (21) of circuit substrate (2) along the thickness direction (Dt) of circuit substrate (2).Shielding part (5) is arranged between busbar (4) and the side edge (21) of circuit substrate (2), extends to opposite side (S2) from one side (S1) of circuit substrate (2) along the thickness direction (Dt) of circuit substrate (2), and extends to both sides of busbar (4) along the side edge (21) of circuit substrate (2).

The invention relates to a medical device having an application device (6, 58) which can be brought into contact with a patient (4) to be treated and an electrical isolating device which can be connected to the application device, the isolating device having at least one application terminal (10) for connection to the application device and at least one supply terminal (12) for connection to a device (14), the isolating device being configured to electrically isolate the application terminal from the supply terminal, the isolating device having at least one first radio unit (16) connected to the application terminal and having a first antenna and at least one second radio unit (18) connected to the supply terminal and having a second antenna, the respective first antenna and the respective second antenna being spaced apart from one another and preferably facing one another in a visible manner on a carrier (20, 44), the at least one first radio unit and the at least one second radio unit being configured to transmit signals and / or data between the application terminal and the supply terminal.

A structure formed by placing a plurality of metal sheets (10, 20) one on another in a sheet-thickness direction, the plurality of metal sheets (10, 20) each having an electrically conductive base material covered with an insulating coating, the structure including: a protrusion (11) provided on a first metal sheet (10) of the plurality of metal sheets (10, 20) that are adjacent to each other and are fastened together with a screw (51), the protrusion protruding toward a second metal sheet (20); an elastically deformable portion (12) provided on the metal sheet (10) in such a manner that the elastically deformable portion (12) surrounds the protrusion (11), the elastically deformable portion (12) being elastically deformable at the time of the fastening with the screw (51); a protrusion (21) disposed on the metal sheet (20) in such a manner that the protrusion (21) protrudes toward the metal sheet (10), and crosses the protrusion (11); and an elastically deformable portion (22) provided on the metal sheet (20) in such a manner that the elastically deformable portion (22) surrounds the protrusion (21), the elastically deformable portion (22) being elastically deformable at the time of the fastening with the screw (51). The end of the first protrusion (11) and the end of the second protrusion (21) contact each other at the time of the fastening with the screw (51).

A fan with electromagnetic radiation shielding structure includes a fan impeller and a shaft seat. The fan impeller includes a metal hub, a plurality of blades circumferentially spaced on an outer surface of the metal hub, and a magnetic element provided on an inner surface of the metal hub. The shaft seat is provided at a central area with an upward projected shaft barrel, which is rotatably connected to the fan impeller and has a stator externally fitted therearound. A metal carrier is provided on the shaft seat and has a peripheral edge extended upward to form a sidewall and define an open-topped receiving space for receiving the stator therein. The metal hub and the metal carrier together define a shielding space, such that the stator is located in the shielding space and isolated from outer environment to avoid leakage of electromagnetic radiation produced by the stator.

An electronic device (10) comprising: a housing (11); a circuit board (12) arranged within the housing (11) on which a plurality of circuit elements are mounted; and a shielding housing (15) provided on the circuit board (12) and made of metal. Among the plurality of circuit elements, a circuit element requiring electromagnetic shielding is located in a region of the circuit board (12) where the shielding housing (15) is provided. For example, the electronic device (10) further comprises a plurality of shielding clips (16) that electrically connect the shielding housing (15) to a ground pattern of the circuit board (12). The intervals of the plurality of shielding clips (16) are configured based on a noise propagation characteristic in a vacuum.

Apparatuses and techniques are disclosed for manufacturing apparatuses for use as test platforms and commercial equipment. In one aspect, an apparatus includes a non-conductive frame and a first shielding structure. The first shielding structure is part of the non-conductive frame. The first shielding structure includes a first laser-activated surface structure, a first base metal disposed on the first laser-activated surface structure, and a first plating metal disposed on the first base metal.

A housing for an electrical or electronic device is described, having a first housing part (1) made of metal and a second housing part (2) made of metal, in which the first housing part (1) has a groove (4) containing a sealant and in which one or more ribs of the second housing part (2) engage. According to the utility model, the one or more ribs are designed to be crimping ribs (3).

The invention discloses an integrated hybrid transmission three-phase EMC shielding structure and a design method, and the structure comprises a motor housing and an electric control housing, and also comprises a three-phase through-cylinder connector which passes through the junction of the motor housing and the electric control housing, a first retaining wall and a second retaining wall are respectively arranged between the three-phase through-cylinder connector and the motor shell and between the three-phase through-cylinder connector and the electric control shell; the first retaining wall and the second retaining wall are provided with dislocation areas in the horizontal direction, and the first retaining wall and the second retaining wall are provided with overlapping areas in the vertical direction. Compared with the prior art, by means of the labyrinth type metal retaining wall and the metal shielding elastic piece, compact space arrangement is guaranteed, electromagnetic body shielding and reflection attenuation can be effectively provided, effective dynamic sealing and electromagnetic escape restraining are carried out on gaps, assembling and independent replacement are easy, the material and process cost is greatly reduced, and the service life of the electromagnetic shielding device is prolonged. And the device can adapt to various severe working conditions of the hybrid transmission and is more reliable.

An EMC housing for an electrical component, having at least a first housing part and a second housing part, which are connected to one another via a sealing surface and together enclose a volume of the housing in a liquid-tight manner. A plate-shaped third housing part is arranged between the first housing part and the second housing part within the volume. The third housing part has a plurality of elastically deformable contact elements in at least one connection region with at least one of the first housing part and the second housing part for forming an electrically conductive connection between the housing parts.

The present disclosure provides EMC enclosures. An electromagnetic compatible (EMC) enclosure having a first part (2) and a second part (3) for forming an enclosure when assembled together. The first part (2) and the second part (3) comprise a first interface surface (4) and a second interface surface (5), respectively, for compressing a gasket (9) inserted between the interface surfaces (4, 5) when the first part and the second part are assembled together. At least one of the first interface surface (4) and the second interface surface (5) comprises a plurality of undercut regions (7) for reducing compression of the gasket (9) in the regions when the first part (2) and the second part (3) are assembled together.

An embodiment of the present application discloses a tray assembly and a wearable device. The tray assembly includes a tray made of a first conductive material, a first locking structure made of a second conductive material, and a connecting structure made of a non-conductive material. In the tray assembly provided by the embodiment of the present application, the connecting structure made of a non-conductive material is connected between the tray and the first locking structure, insulating the tray and the first locking structure from each other. Thus, when an electric current is generated on the tray, the connecting structure can block the direct conduction of the current to the first locking structure, thereby reducing the current of the first locking structure, further reducing the harmonic power, and enabling the wearable device to meet the EMC requirements. At the same time, by connecting the first locking structure and the second locking structure, the host can be locked to the tray, preventing the host of the wearable device from moving relative to the tray.

A sensor includes: a receptacle connectable to an external plug; a second housing accommodating at least part of the receptacle; a main substrate on which an electronic component used for sensing is mounted; a shield film covering at least part of the main substrate and shielding an electromagnetic wave emitted from the main substrate and / or an electromagnetic wave to penetrate the main substrate from the outside; a first housing accommodating at least part of the main substrate and at least part of the shield film; a flexible substrate connecting the main substrate and the receptacle; and a protection member abutting on an end of the shield film from the side opposite to the main substrate, the end of the shield film facing the flexible substrate.

A structure in which a plurality of metal plates (10, 20), each of which is obtained by covering a conductive base material with an insulating film, are stacked in the plate thickness direction, is provided with: a protruding part (11) which is provided on one metal plate (10) among the metal plates (10, 20) that are adjacent to each other and fastened by a screw (51), and which protrudes toward the other metal plate (20); an elastic deformation part (12) which is provided in the metal plate (10) so as to surround the periphery of the protruding part (11) and which elastically deforms when fastened by a screw (51); a protruding section (21) that protrudes toward the metal plate (10) in the metal plate (20) and is disposed so as to intersect the protruding section (11); and an elastic deformation part (22) provided in the metal plate (20) so as to surround the periphery of the protruding part (21), the elastic deformation part (22) being elastically deformed when fastened by the screw (51). When fastened by a screw (51), the tip of the protrusion (11) and the tip of the protrusion (21) are in contact with each other.

The device comprises a container made of a metamaterial that is transparent to visible light and intended for holding electrical or electronic equipment. The device provides electromagnetic protection and makes it electromagnetically undetectable. The purpose of the device is to ensure user confidentiality in the use of electromagnetic waves related to telecommunications. By using a type of container to enclose any type of telecommunications device or appliance, the enclosure of the appliance is likely to prevent detection by electromagnetic waves. Thus, tracking of the appliance by electromagnetic remote sensing means, including cellular, radio frequency, or satellite communication means such as GPS, Galileo, and other systems, is impossible without first powering down the appliance.

An electronic apparatus includes a noise generation source that generates electromagnetic noise and a housing. The housing includes first and second housing components defining an accommodation space R for accommodating the noise generation source. The first housing component includes a first fixing part and at least two ridge parts extending in directions away from the first fixing part. The second housing component includes a second fixing part fixed to the first fixing part, and at least two grooves extending in directions away from the second fixing part and into which the two ridge parts enter. The ridge parts and the grooves each have a protrusion amount and a depth that make the resonance frequency of the housing different from the frequency of the electromagnetic noise.

The invention relates to an EMV housing (1) for an electrical component (2), comprising at least a first housing part (3) and a second housing part (4) which are connected to one another by means of a sealing surface (5) and which together enclose a volume (6) of the housing (1) in a liquid-tight manner, a plate-like third housing part (7) being arranged in the volume (6) between the first housing part (3) and the second housing part (4); wherein the third housing part (7) has a plurality of elastically deformable contact elements (9, 10) in at least one connection region (8) to at least one of the first housing part (3) and the second housing part (4) for forming an electrically conductive connection of the housing parts (3, 4, 7) to each other.

Power conversion device (1) comprising: a printed circuit board (2); a power conversion module (3) arranged so that it faces the printed circuit board (2); a busbar (4) connected to the power conversion module (3); and a shielding section (5) that shields against electromagnetic waves, wherein the busbar (4) extends from one side along a thickness direction of the printed circuit board (2) through a side edge (21) of the printed circuit board (2) to an opposite side of the printed circuit board (2) and wherein the shielding section (5) is arranged between the busbar (4) and the side edge (21) of the printed circuit board (2), extends from one side along the thickness direction of the printed circuit board (2) to the opposite side and extends along the side edge (21) of the printed circuit board (2) to both sides of the busbar (4).

The invention describes a housing for an electrical or electronic device, comprising a first housing part (1) made of metal and a second housing part (2) made of metal, wherein the first housing part (1) has a groove (4) containing a sealing medium, into which one or more ribs of the second housing part (2) engage. According to the invention, the rib or ribs are designed as compression ribs (3).