The present application provides a high-speed train gearbox sensing device, comprising: a housing, disposed on the high-speed train gearbox; a piezoelectric sensor, fixedly disposed in the housing, and with vibration of the high-speed gearbox, converting mechanical energy generated by the vibration into electric energy using piezoelectric effect, and transmitting a signal to a central control system; a shielding case, disposed outside the piezoelectric sensor for shielding electromagnetic interference from the piezoelectric sensor. The above sensing device is installed to the high-speed train gearbox, for collecting vibration information using the piezoelectric sensor, so as to enable monitoring of gearbox vibration. In order to ensure the normal operation of the sensor, the design with high-pressure resistance and anti-electromagnetic interference in structure is adopted to prolong the service life of the sensor, so as to achieve the purpose of real-time online monitoring whether the gearbox is in a good state.

A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board for electrical power conversion. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber.

An electronic device includes a housing enclosure, which at least sealingly contains an electronic component, a barrier, a pump, and a coolant. The electronic component is located on a substrate, while the barrier defines a circulation loop in which the coolant is exposed to the electronic component. The pump is positioned within the circulation loop to cause flow of the coolant through the circulation loop along one side of the at least one barrier in one direction and along an opposite side of the at least one barrier in an opposite direction.

A capacitively-coupled plasma processing apparatus includes: at least one chamber body providing chambers separated from each other; upper electrodes respectively installed in upper spaces within the chambers; lower electrodes respectively installed in lower spaces within the chambers; a high frequency power supply; a transformer including a primary coil electrically connected to the high frequency power supply, and secondary coils each of which coils having a first end and a second end; first condensers respectively connected between each of the first ends of the secondary coils and the upper electrodes; and second condensers respectively connected between each of the second ends of the secondary coils and the lower electrodes. The primary coil extends around a central axis. The secondary coils are configured to be coaxially disposed with respect to the primary coil. A self-inductance of each of the secondary coils is smaller than that of the primary coil.

An electromagnetic interference shield includes a housing having an opening formed by a peripheral flange, and a base heat sink engaged onto the housing, the base heat sink includes an aperture formed the base heat sink and includes one or more folds for increasing a surface size of the base heat sink, a conductive member is engaged with the peripheral flange of the housing, and the conductive member includes a fastener engaged through the opening of the housing and engaged with the aperture of the base heat sink, and one or more heat sinks are further attached onto the base heat sink for increasing a surface size of the heat sinks.

In a camera, a circuit board converts light having passed through a lens into an electric signal. A connector connects the circuit board to an outside cable. A shielding conductor surrounds the circuit board. An insulating housing houses the circuit board and the shielding conductor. A connector includes inner, intermediate, and outer connectors. The inner connector includes a first outer skin conductor, and is mounted to the circuit board. The intermediate connector includes a second outer skin conductor supporting a shielding conductor, and is connected to the inner connector and the shielding conductor. The outer connector includes a third outer skin conductor, and connects an outside cable to the intermediate connector. The shielding conductor wraps the circuit board from a boundary, as a starting point, between the second outer skin conductor and the shielding conductor. The insulating housing is connected to and supported by the intermediate connector.

A portable and mobile deployable data center (DDC) is disclosed, which includes various components that enables the DDC to have multiple functions including, computing, data storage and retrieval, communications and routing. A DDC includes a rugged case that suitable for harsh environments, an interconnection mechanism, a plurality of hot swappable readers, a plurality of hot swappable portable computing devices, and a plurality of hot swappable power supplies.

What is provided is a shield housing for shielding interconnect structures and/or components disposed on a circuit board, wherein at least two antenna radiators can be disposed on the shield housing, and wherein the shield housing is configured in such a manner that it can cover the interconnect structures and/or components disposed on the circuit board, at least in part, can be connected with a ground surface of the circuit board, and has a region between the antenna radiators, which region is configured in such a manner that it provides electrical decoupling of the feed of the antenna radiators from one another.

A field device having a monitoring device for grounding and/or shield connections, wherein the monitoring device is connected to a power supply of the field device, an activation arrangement for activating a monitoring current and at least one current detection device downstream of the activation arrangement, wherein the at least one current detection device is connected to at least one component of the field device to be grounded and/or to be shielded.

A vehicle controller includes: a control box having a first outer surface and a second outer surface disposed opposite to each other in a thickness direction of the control box, the first outer surface including a control cooling water channel, which includes an Insulated Gate Bipolar Transistor (IGBT) cooling layer, a power supply cooling layer, and a transition section, and the IGBT cooling layer and the power supply cooling layer stacked in the thickness direction of the control box and communicated to each other by using the transition section; an IGBT module mounted on the first outer surface and extending into the IGBT cooling layer and being cooled by coolant in the IGBT cooling layer; and a power supply module mounted on the second outer surface and the power supply module adjacent to the power supply cooling layer and cooled by coolant in the power supply cooling layer.