Provided is a wall grommet, which can be installed through the surfaces of walls to route wiring in the walls' interior spaces. In particular, the wall grommet is configured for running power cords inside walls and presenting the electrical connectors of a power cord in a manner such that power cords are hidden from view. The grommet may comprise a housing, which defines an interior space that is adapted to hold either the female connector or male connector of a power cord. The housing may be configured to enclose and secure the electrical connector of the power cord in the housing.

A connector system is described herein. The connector system includes a first connector having a first fastener and a second connector having a second fastener cooperating with the first fastener to fasten the first connector to the second connector. The first connector includes a blocking component that is moveable between a blocking position, in which the blocking component is locked and prevents cooperation of the first fastener with the second fastener, and an non-blocking position in which the blocking component allows the first fastener to cooperate with the second fastener. The second connector includes a marker interacting with the blocking component in order to unlock the blocking component when the first and second connectors are in a position for connection, thereby allowing movement of the blocking component from the blocking position to the non-blocking position. A method of assembling such a connector system is also presented.

The present disclosure provides a flexible illuminating flat cable structure including a connector, a circuit board, a plurality of external signal lines, a first illuminating unit, a shell, signal lines, a fiber cable, and a transparent coat. The connector connects to an electronic device. The circuit board includes contact welds, signal line welds, a first illuminating unit weld, controller welds, and a external signal line welds. The external signal lines conducts a power signal and a control signal. The controller generates a power control signal according to the power signal and the control signal sent from the external signal lines. The first illuminating unit generates lights according the power control signal. The shell includes an illuminating mark corresponding to the first illuminating unit. The signal lines transmit data signals. The fiber cable transmits lights.

A terminal block marker designed to identify a terminal block. The terminal block marker includes a rigid base and a flexible film insert. The rigid base includes a top with a first arm having a first inwardly extending projection and a second arm having a second inwardly extending projection. The rigid base also includes a bottom with legs extending in a direction opposite the arms to hold the terminal block marker in the terminal block. A flexible film insert with identification markings is installed on the rigid base. The flexible film insert is positioned under a first projection of the first arm and rotated downward until the flexible film insert snaps under the second projection of the second arm. The first and second projections retain the flexible film insert on the rigid base to form the terminal block marker.

A light emitting power line plug structure is disclosed, comprising a plug accommodation body, an electric power line communicatively connected to the plug accommodation body, a plug front end assembly, a connection assembly fixedly locked to the plug front end assembly and a light emitting circuit assembly, wherein the light emitting circuit assembly is located between the plug front end assembly and the connection assembly, and is configured with at least a light emitting diode (LED) which faces towards the light guiding line extending from the inside of the electric power line; therefore, when the electric power cords in the electric power line conduct electric power, the LEDs in the light emitting circuit assembly can become conductive and emit light such that the light guiding line integrally illuminates by means of light transfers and glow outwards on the entire electric power line through the translucent cladding.

Example techniques for acoustic position measurement in an example listening environment are disclosed. An example implementation involves a control device including a first transducer, a playback device including a second transducer, and a network microphone device (NMD) including a microphone array. The NMD determines a first direction of the control device with respect to the NMD based at least in part on a first test sound received at the microphone array from the first transducer and determines a second direction of the playback device with respect to the NMD based at least in part on a second test sound received at the microphone array from the second transducer. The NMD adjusts one or more beamforming parameters of the microphone array thereby causing amplifying sound received at the microphone array from the first direction and attenuating sound received at the microphone array from the second direction.

A back shell is described herein. The back shell is configured to be attached to a connector body defining a first attaching feature in its outer surface. The back shell has an attachment portion defining a second attaching feature and a generally tubular support portion extending from this attachment portion. The second attaching feature is configured to engage the first attaching feature of the connector body to secure the back shell to the connector body. An outer surface of the attachment portion of the back shell defines a third attaching feature that is identical in configuration and function to the first attaching feature.

An electrical Kelvin contact assembly for testing IC testing apparatus that uses an assembly design that reduces the tolerance to a near negligible range. The assembly does not use any screws, dowel pins, adhesives or welding to fasten the electrical contacts to the housing. The design of the assembly uses rows of contacts with specially designed protrusions that sit snugly in openings located on three plate-like layers. These layers contain the contacts in the horizontal plane by securing the protrusions in the opening, as well as in the vertical plane by means of a sandwich between three separate layers. A second contact is slid into back slits formed by the three layers.

A current transport mechanism with an elongated, electromechanical base conductor that has an electrically rigidly mechanical plug-in connection device connected thereto in an electrically-rigidly mechanical manner and which, in turn, can be electrically contacted by an electrically-rigidly mechanical mating plug-in connection device.

A current transport mechanism with an elongated, electromechanical base conductor that has an electrically rigidly mechanical plug-in connection device connected thereto in an electrically-rigidly mechanical manner and which, in turn, can be electrically contacted by an electrically-rigidly mechanical mating plug-in connection device.