The present invention provides a battery clamp, comprising: a first and second wire clamps and a control device. Each of the first and second wire clamps is electrically connected to the control device. The control device comprises: a housing; a master-control board mounted within the housing; and connectors disposed at one side of the housing, and being electrically connected to the master-control board, comprising: at least a first and second electrode connectors, which are connected to an external power supply for receiving power, and at least one communication connector connected to the external power supply for building a communication connection between the battery clamp and the external power supply. The battery clamp is communicatively connected to the external power supply by the communication connector, thereby effectively solving the problems of a lithium battery in an external power supply e.g. battery bulge or explosion resulted from improper uses.

A modular electronic apparatus includes an electric box, an insert, and optionally one or more electric modules. The insert is configured to be inserted at least partially into an internal space of the electric box and connect to electric wires of a building. The insert is further configured to receive the electric modules such that they can be powered from the electric wires without directly connecting to them. The electric modules can engage with the insert and be easily replaceable without the need to reconnect the electric wires. Each of the electric modules can be one of the following: a programmable electric socket (smart socket), traditional electric socket, programmable electric switch (smart switch), traditional electric switch, dimmer, touch screen panel, speaker, personal computer, television device, lighting device, audio player, multimedia device, network hub, a router, and the like.

Systems, methods, and apparatus to facilitate wireless device monitoring and control are provided. A first device controller may be adapted to be disposed within a power connector, in series with conductors of the power connector. The power connector may be adapted to provide power from a power source to a device. The first device controller may include two terminals to electrically couple the first device controller with the conductors of the power connector. The first device controller may further include a power component to power the first device controller. The first device controller may be configured to monitor one or more conditions of the device, control one or more functions of the device, and wirelessly communicate with a system controller that is remote from the power connector and the device. The power connector may correspond to a power plug and/or a terminal block.

A modular electrical receptacle wherein more than one of the modular electrical receptacles can be connected to form a larger receptacle connected to a single source of power. The modular electrical receptacle includes a housing having a front surface with a first and a second electrical outlet. The housing further includes a first tab extending from a first end and a second end extending from a second end for securing the modular receptacle to an in-wall electrical box. The housing further includes a power link, such as a conductive extension, for connecting directly to another module and providing the other module with access to the single source of power. The power link can be three links for connecting a positive line, a neutral line and a ground line to another module. The housing also includes a coupler for connecting the housing to a power link of another module.

A memory card reader body has a generally rectangular parallelepiped shape and a slot for inserting a memory card. The reader body furthermore includes a housing for receiving a memory card connector, and at least one protection circuit. The body includes an upper lid and a lower lid, where the protection circuit is positioned on an internal face of the upper lid.

A portable power strip is provided for charging one or more electronic devices using both DC and AC power output connection ports. The portable power strip may include a housing having an internal rechargeable battery unit for connecting to and recharging electronic devices, as necessary, at least one power input connector interface for recharging the internal battery unit from an external power source, and AC and DC power output connection ports for connecting the power charger with electronic devices, as necessary. The power strip further includes internal circuitry providing surge protection.

An electrical connection element is for a power connector. The power connector includes an electrical component having a number of first electrical mating members. The electrical connection element comprises: a housing including a number of second electrical mating members structured to be electrically connected to the number of first electrical mating members; a contact assembly enclosed by the housing and being electrically connected to the number of second electrical mating members; and an operating mechanism for opening and closing the contact assembly. The contact assembly is structured to electrically connect and disconnect power while the number of first electrical mating members remain mechanically coupled to the number of second electrical mating members.

The present invention effectively prevents a short circuit from occurring between a power supply terminal and a ground electrode. A receptacle-side connector (3) includes a metal plate (mid-plate 32) and a shell part (23). An edge surface (end surface part 32a) of the metal plate, which edge surface is located at an end surface facing a first ide toward an opening (23a) of the shell part (23) and which corresponds to a position of a power supply terminal (Vbus terminal 25), is shaped so as to be set back toward a second side opposite the first side.

The present invention effectively prevents a short circuit from occurring between a power supply terminal and a ground electrode. In a plug-side connector (1), a first protection element (first capacitor 16a) is provided between a metal plate (center plate 12) and a ground electrode (11a) and a second protection element (second capacitor 16b) is provided between an outer jacket (15b) of a cable (15) and the ground electrode (11a), inside a shell part (23).

A grounding module for telecommunication systems is mountable to an AC wall outlet and includes two cable connectors to which signal carrying cables are attached. The grounding module includes a housing having a main ground contact to provide a ground to an external electronic device connected thereto. An external grounding lug is mounted on one of the cable connectors to provide a separate ground connection to the metallic sleeves of the cable connectors. At least one of a surge protection circuit and ground protection circuit is provided and which is in electrical communication with the main ground contact. The grounding lug and metallic sleeves of the cable connectors are selectively electrically isolatable from the main ground contact.