摘要:
An electronic device may have a printed circuit to which electrical components are mounted. Electromagnetic shields may be mounted to the printed circuit over the components to suppress interference. A shield may have a metal frame covered with a conductive fabric. The conductive fabric may cover an opening in the top of the frame. An insulating layer may be formed on the lower surface of the conductive fabric to prevent shorts between components on the printed circuit and the conductive fabric. An insulating cap such as an elastomeric polymer cap may also be formed over each component to provide electrical isolation between the components and the conductive fabric. Shields may be formed by coupling shield cans to subscriber identity module shields or other metal structures in a device. Intervening wall structures may be removed to help provide additional shielding volume.
摘要:
An electronic device may have a signal cable formed from a flexible printed circuit. A service loop may be formed in the signal cable. The bend may be formed in a desired location on the flexible printed circuit by contraction of an elastic member having ends attached to the flexible printed circuit. The elastic member may be conductive to carry signals and provide shielding. Structures may be attached to the flexible printed circuit to promote bending in a desired location and direction. A crease or other bending promotion feature may be applied to the flexible printed circuit at a desired bend location. Overbending prevention structures such as overmolded elastomeric structures may be applied to the flexible printed circuit at the bend. Integral strain relief features may prevent overbending of the flexible printed circuit upon exiting the elastomeric structures. Overmolded structures may serve as protective bumpers.
摘要:
A multiple antenna feed assembly including an antenna feed support having a body made of an electrically insulating material and a method of forming the antenna feed assembly. The antenna feed support may have a slot adapted to receive a connector; and a gap formed in the body having a thickness to fit a printed circuit board (PCB). The multiple antenna feed assembly may include a first connector adapted to fit in the slot of the antenna feed support; and a second connector electrically isolated from the first connector. Also provided is an antenna feed support to provide structural support and electrical isolation for the components of a multiple antenna feed assembly as above.
摘要:
Several embodiments for ejecting a SIM tray from an electronic device are disclosed. In some embodiments, a lever positioned behind the tray can be actuated to eject the tray. In some embodiments, a pivot mechanism can be actuated to eject the tray. In other embodiments, a gear mechanism can be actuated to eject the tray. In other embodiments, a spring element can be actuated to eject the tray. In some embodiments, the electronic device may include a key feature that allows the tray to eject only when a tool is used having a mating key feature with the key feature of the electronic device.
摘要:
An electronic device may have a printed circuit to which electrical components are mounted. Electromagnetic shields may be mounted to the printed circuit over the components to suppress interference. A shield may have a metal frame covered with a conductive fabric. The conductive fabric may cover an opening in the top of the frame. An insulating layer may be formed on the lower surface of the conductive fabric to prevent shorts between components on the printed circuit and the conductive fabric. An insulating cap such as an elastomeric polymer cap may also be formed over each component to provide electrical isolation between the components and the conductive fabric. Shields may be formed by coupling shield cans to subscriber identity module shields or other metal structures in a device. Intervening wall structures may be removed to help provide additional shielding volume.
摘要:
Electrical components are mounted on a printed circuit in an electronic device housing. Shielding can structures may include a sheet metal shield can layer with a conductive gasket. The printed circuit may have an opening. A screw passes through the opening in the printed circuit and openings in the conductive gasket and sheet metal shield can layer to secure the shielding can structures to the housing. When secured, a lip in the gasket lies between the printed circuit substrate and the housing. The gasket may be formed from conductive elastomeric material. A shield can lid and a flexible printed circuit may be embedded within conductive elastomeric material that provides a thermal conduction path to dissipate heat from electrical components under the lid. Shield can members that are located on opposing sides of a bend in a flexible printed circuit substrate may be coupled by a conductive elastomeric bridging structure.
摘要:
An electronic device contains electrical components. An electrical component is mounted to an electronic device housing using mounting structures. The mounting structures include a flexible printed circuit jumper having opposing ends with metal contact pads. Metal traces in the flexible printed circuit jumper form contact traces within openings in a solder mask layer. Solder in the openings may be used to connect the metal contact pads to the contact traces. A metal bracket may be screwed into the electronic device housing to mount the electrical component to the electronic device housing. The metal bracket may press the metal contact pads on one end of the jumper against mating contact terminals on the electrical component and may press the metal contacts on the other end of the jumper against mating contact pads on an additional printed circuit.
摘要:
An electronic device has circuitry mounted within an electronic device housing. The electronic device housing may have housing walls such as metal sidewalls. Openings are formed in an electronic device housing wall to accommodate buttons. A button may have a switch with a switch housing mounted to the housing wall. A movable button member that extends from the switch housing may protrude through a housing opening. Switch terminals are coupled to signal lines on structures such as flexible printed circuits. The switch terminals may be formed from portions of elongated switch leads supported by support structure that are mounted to the housing wall or may be formed on an inner surface of the switch housing. Support structures may be molded into engagement with features on a housing wall or may be mounted to a housing wall using a fastener such as a screw.
摘要:
Multi-purpose cowling structures are provided to minimize spacing impact within an electronic device, while maximizing functional utility. In one embodiment, an electromagnetic interference shield may provide one or more anchors for enabling a logic board cowling to apply sufficient downward force to one or more board connectors to prevent inadvertent disconnects. In another embodiment, a cowling can electrically connect the ground plane of a logic board to the ground plane of a housing member and provide a pre-load force to a conductor connection existing on logic board. A compass mounted on a flexible printed circuit board is also provided. Mounting the compass on a flexible printed circuit board enables the compass to be mounted remote from ferrous object that may affect the compass's performance.