Abstract:
A lightweight audio player for vehicular application is virtually “fastenerless” and includes a fold-up case formed of polymer based material molded to provide details to accept audio devices, as well as the circuit boards required for electrical control and display. The case is of composite structure, including an insert molded electrically conductive wire mesh screen. The wire mesh provides shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips. Side wall closure members define self-engaging attachment features for affixing to the case, providing electrical self-grounding with the wire screen and thermal grounding with internal power devices. The major components and subassemblies are self-fixturing during the final assembly process, eliminating the need for dedicated tools, fixtures and assembly equipment.
Abstract:
An electrical connector include a movable hold down member that is configured to receive a fastener so as to secure the electrical connector to an underlying substrate to which the electrical connector is mounted.
Abstract:
A stack structure of a high frequency printed circuit, mainly includes a transmission conductor pin group in a form of single row, where each signal pair and each transmission pair of the transmission conductor pin group respectively have a through hole portion thereon, and the inner layer of the circuit board has a trace portion in electric connection with the through hole portion, allowing each four terminals to be formed into one group. Utilizing the clever arrangement of the through hole portions and trace portions separates each terminal properly, thereby increasing the property of transmitted signals, and, at the same time, reducing noise interferences such as EMI and RFI.
Abstract:
A lightweight radio/CD player for vehicular application includes a case and frontal interface formed of polymer based material molded to provide details to accept audio devices and radio receivers, as well as the circuit boards required for electrical control and display. The case and frontal interface are of composite structure, including an insert molded electrically conductive wire mesh screen that has been pre-formed to contour with the molding operation. The wire mesh provides shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips. The PCB architecture is bifurcated into a first board carrying common circuit components in a surface mount configuration suitable for high volume production, and a second board carrying application specific circuit components in a wave soldered stick mount configuration.
Abstract:
Example embodiments are directed to circuit boards, connectors, cases, circuit board assemblies, case assemblies, devices and methods of manufacturing the same, which are common to at least two different form factors.
Abstract:
An assembly including a substrate that includes a plurality of conductive plane layers including a first group and a second group of common conductive plane layers, where electrically isolated first and second attach pads are on an edge surface of the substrate and at least thermally coupled to the first and second groups of common conductive plane layers, respectively. A surface mount technology (SMT) component, such as a thermal jumper, mounted on the first and second attach pads such that the SMT component is at least thermally coupled to the first and second groups of common conductive plane layers via the first and second attach pads, respectively. Methods of forming such an assembly also are disclosed.
Abstract:
Example embodiments are directed to circuit boards, connectors, cases, circuit board assemblies, case assemblies, devices and methods of manufacturing the same, which are common to at least two different form factors.
Abstract:
A method is for making a printed wiring board (PWB) assembly. The method may include forming a first PWB having a plurality of first electrically conductive pads, forming a second PWB including a plurality of electrically conductive traces having exposed ends on an edge surface of the second PWB, and covering the edge surface of the second PWB with an electrically conductive layer. The method may also include selectively removing portions of the electrically conductive layer to define a plurality of second electrically conductive pads electrically connected to corresponding ones of the exposed ends of the electrically conductive traces, and assembling the first and second PWBs together so that the first and second electrically conductive pads are electrically coupled together to define the PWB assembly.
Abstract:
A cable bypass assembly is disclosed for use in providing a high speed transmission line for connecting a board mounted connector of an electronic device to a chip on the device board. The bypass cable assembly has a structure that permits it, where it is terminated to the board mounted connector and the chip member, or closely proximate thereto to replicate closely the geometry of the cable. The connector terminals are arranged in alignment with the cable signal conductors and shield extensions are provided so that shielding can be provided up to and over the termination between the cable signal conductors and the board connector terminal tails. Likewise, a similar termination structure is provided at the opposite end of the cable where a pair of terminals are supported by a second connector body and enclosed in a shield collar. The shield collar has an extension that engages the second end of the cable.
Abstract:
A modular light emitting diode (LED) mounting configuration is provided including a light source module having a plurality of pre-packaged LEDs arranged in a serial array. The module includes a heat conductive body portion adapted to conduct heat generated by the LEDs to an adjacent heat sink. As a result, the LEDs are able to be operated with a higher current than normally allowed. Thus, brightness and performance of the LEDs is increased without decreasing the life expectancy of the LEDs. The LED modules can be used in a variety of illumination applications employing one or more modules.