A universal serial bus (USB) adaptor supplies a large charging current to charge a device. The USB adaptor includes a voltage conversion circuit, a USB interface, a current detection circuit, a first switch, a second switch, and a third switch. The USB interface includes a power pin, a first data pin, a second data pin, and a ground pin. The current detection circuit detects a charging current of the device, and converts the charging current into a voltage to compare the charging current with a reference voltage to output a comparison signal. The first switch, the second switch, and the third switch control connection relationships between the power pin and the first data pin, the first data pin and the second data pin, and the second data pin and the ground pin according to the comparison signal, respectively. A USB cable is also provided.

An arrangement for plug connecting electrical connections through a housing, particularly a device for driving a compressor. The arrangement includes a first plug connection having first plug connectors and a second plug connection having second plug connectors for transmitting electrical energy in independent transmitting ranges and a receiving element for receiving plug connectors. The receiving element having first plug connectors of the first plug connection and second plug connectors of the second plug connection is thereby implemented as an integral and cohesive unit and one-piece component.

An electrical connection jumper is of the screw type for terminal blocks of switchboards. The jumper includes conducting body including at least two sub-bodies, each with a shape substantially in the form of an overturned “U”, insulating body including at least two sub-bodies with a substantially parallelepiped shape made of suitable insulating material, connected together longitudinally by a vertical membrane with a reduced thickness in the transverse direction. Insulating body has a plane for coupling with the conducting body. The coupling plane includes, between each sub-body and adjacent sub-body, a pair of arched lugs arranged opposite each other in the transverse direction and extending in the longitudinal direction so that the respective vertical arms are respectively connected to each one of the adjacent sub-bodies. Each arched lug has a tooth extending in the transverse direction towards the inside of the insulating body in empty space between the two sub-bodies.

A joint connector, including: a connector housing; a joint terminal; a terminal holder; and a lock arm that is formed in an outer peripheral wall of the connector housing, in which a rear end portion of the terminal holder is provided with convex portions that protrude rearward from a rearmost end edge of the connector housing in a proper assembled state of the terminal holder with respect to the connector housing.

Connectors each include wires (2) formed with core exposed portions (2B) by removing parts of coatings (2A) and a connector housing (1) for accommodating the wires (2) while exposing the core exposed portions (2B) in an opening (4). The connectors are stacked with the openings (4) facing each other. An operation hole (5) is formed on a side opposite to the opening (4) in each of the connector housings (1). Electrodes (9) of a welding machine are inserted through both operation holes (5) and the core exposed portions (2B) corresponding in a stacking direction are welded to each other. In this way, the wires (2) can be connected directly between the both connectors without using terminals.

Connectors each include wires (2) formed with core exposed portions (2B) by removing parts of coatings (2A) and a connector housing (1) for accommodating the wires (2) while exposing the core exposed portions (2B) in an opening (4). The connectors are stacked with the openings (4) facing each other. An operation hole (5) is formed on a side opposite to the opening (4) in each of the connector housings (1). Electrodes (9) of a welding machine are inserted through both operation holes (5) and the core exposed portions (2B) corresponding in a stacking direction are welded to each other. In this way, the wires (2) can be connected directly between the both connectors without using terminals.

An electrical machine having a housing with a central receiving space in which a stator winding and an interconnection arrangement with a plurality of internal conductors is arranged. A high-voltage connection arrangement with a plurality of connecting points at which the internal conductors are connected in pairs to external conductors of a high-voltage source are provided. The high-voltage connection arrangement has a removable cover which closes an access region, and an electrical safety locking device (interlock) with a low-voltage circuit that detects an opening state of the access region of the high-voltage connection arrangement and the high-voltage connection arrangement is switched to zero potential when an open state of the access region is detected. The external conductors are inserted into the receiving space through the machine housing from the outside forming the high-voltage connection arrangement and arranging the electrical component within the receiving space.

An electrical machine having a housing with a central receiving space in which a stator winding and an interconnection arrangement with a plurality of internal conductors is arranged. A high-voltage connection arrangement with a plurality of connecting points at which the internal conductors are connected in pairs to external conductors of a high-voltage source are provided. The high-voltage connection arrangement has a removable cover which closes an access region, and an electrical safety locking device (interlock) with a low-voltage circuit that detects an opening state of the access region of the high-voltage connection arrangement and the high-voltage connection arrangement is switched to zero potential when an open state of the access region is detected. The external conductors are inserted into the receiving space through the machine housing from the outside forming the high-voltage connection arrangement and arranging the electrical component within the receiving space.

A wall mountable connector for securing a thermostat to a wall is disclosed. The wall mountable connector may include built in jumper functionality. In some cases, the wall mountable connector may include a plurality of wiring terminals as well as structure enabling an installer or other person to easily electrically connect (e.g. jumper) one or more of the wiring terminals in order to accommodate different equipment installations. For example, in some cases there may be a desire to electrically connect (e.g. jumper) or disconnect certain wiring terminals that correspond to transformer input terminals, which in some equipment installations are intended to be independently powered while in others they are not.

A wall mountable connector for securing a thermostat to a wall is disclosed. The wall mountable connector may include built in jumper functionality. In some cases, the wall mountable connector may include a plurality of wiring terminals as well as structure enabling an installer or other person to easily electrically connect (e.g. jumper) one or more of the wiring terminals in order to accommodate different equipment installations. For example, in some cases there may be a desire to electrically connect (e.g. jumper) or disconnect certain wiring terminals that correspond to transformer input terminals, which in some equipment installations are intended to be independently powered while in others they are not.