A variety of improvements to portable electronic devices are disclosed, particularly electronic devices designed for use in and around water. The improvements include a more secure interface jack, improved waterproofing techniques, improved battery stability, and improved device functionality. One or more of the disclosed improvements may be incorporated into a variety of portable electronic devices.

A display apparatus having a plurality of display surfaces controlled by a controller, the display apparatus having a mounting substrate for mounting the plurality of display surfaces. The mounting structure having a conductor layer for providing electrical connections to the plurality of display surfaces. The display apparatus may further have at least one display surface sufficiently flexible to have a curvature, wherein the curvature produces a space between the at least one display surface and the mounting structure to house the controller.

A display device having a compact structure includes a main board and an inverter board of the display device connected to each other. A bracket supports the main board and the inverter board. The bracket includes a shielding part to block electromagnetic waves, an inverter board holding part to allow the inverter board to be easily seated on the bracket, and a support and fixing part to support and fix the bracket. Further, a front cover and a back cover are connected in a snap-fit manner, and a bottom chassis includes a cable receipt groove to organize the internal wiring of the display device.

An electronic device can include a housing at least partially defining an internal volume and an aperture in communication with the internal volume and an ambient environment. A speaker module can be positioned at the aperture and sealed to the housing to define a liquid barrier. The speaker module can include a metallic support member partially defining the internal volume and a flat mounting surface, a magnet affixed to the flat surface, a speaker module enclosure affixed to the metallic support member, and a diaphragm carried by the speaker module enclosure and positioned opposite the magnet.

A capacitor module has a module case including a lower case and an upper case. A housing case is fixed to an inner face of the upper case, and a capacitor is housed in the housing case. A circuit board is fixed to an upper face of the lower case. The circuit board has wiring that is electrically connectable to the capacitor, and electronic components and constituting a circuit that controls electric current to the capacitor are mounted on the circuit board.

Aspects of the present disclosure are presented for managing simultaneous outputs of surgical instruments. In some aspects, methods are presented for synchronizing the current frequencies. In some aspects, methods are presented for conducting duty cycling of energy outputs of two or more instruments. In some aspects, systems are presented for managing simultaneous monopolar outputs of two or more instruments, including providing a return pad that properly handles both monopolar outputs in some cases.

Methods, systems, and apparatuses provide power from multiple input power sources to adjacent outputs efficiently and reliably. Aspects of the disclosure provide a power distribution unit (PDU) that includes a number of power outputs including first and second adjacent power outputs. The PDU includes a printed circuit board having a first conducting layer electrically interconnected to a first power input connection and the first power output, a second conducting layer that is at least partially above the first conducting layer and in facing relationship thereto. The second conducting layer is electrically insulated from the first conducting layer and electrically interconnected with a second power input connection and the second power output, the first and second power outputs thereby connected to different power inputs.

A module for a networking node is disclosed. The module includes a Printed Circuit Board (“PCB”), one or more circuits mounted to the PCB and a faceplate. The faceplate includes a middle plate, a first side plate, and a second side plate. The first side plate extends from the middle plate at an obtuse angle relative to the middle plate towards a first side and back of the module. The second side plate extends from the middle plate, opposite to the first side plate, at an obtuse angle relative to the middle plate towards a second side and the back of the module.

A semiconductor device, including a case that has a first power terminal including a first bonding area and a second power terminal including a second bonding area, and an insulating unit located between the first power terminal and the second power terminal, and having a shape of a flat plate, the insulating unit being bonded to the case. The insulating unit has a first insulating portion in a sheet form, and a second insulating portion which covers an upper surface, a lower surface, or both the upper and lower surfaces, of the first insulating portion. The first bonding area and the second bonding area are exposed from the insulating unit and from the case.

A fanless cooling system for particularly fail-safe and efficient cooling of electronic modular systems in vehicles, more particularly in rail vehicles, includes a preferably frame-shaped rack or assembly carrier for holding at least one module or assembly, more particularly a processor module having high-performance multi-core processors. A heat transport body can be mounted in a heat-transferring manner on a part or component of the module. The rack has at least one heat distribution body, to which the heat transport body can be fastened in a heat-transferring manner, preferably detachably, when the module having the part coupled to the heat transfer body is held in the rack. At least one heat tube is connected to the heat distribution body in a heat-transferring manner. An electronic modular system with a fanless cooling system is also provided.