An EMC filter plug-in arrangement with an EMC filter to avoid or reduce electrical and/or electromagnetic interference caused by an electronic component, in particular an inverter of a refrigerant compressor. The EMC filter plug-in arrangement has an EMC filter, a plug-in housing formed for receiving the EMC filter and having electrical conductor contacts formed on the outside which are in electrical contact with the EMC filter, and a plug-in receptacle formed for arrangement with an electronic component into which the plug-in housing can be plugged in to provide electrical contact between the EMC filter and the electronic component.

An inverter for an electric motor is disclosed. The inverter includes a capacitor board including at least one capacitor, at least one transistor board, and a cooling element. The capacitor board and the at least one transistor board are electrically interconnected. The capacitor board and the at least one transistor board are each aligned transversely to a longitudinal central axis of the inverter. The cooling element is pot-shaped and provides a housing of the inverter that receives the capacitor board and the at least one transistor board.

The present invention can provide a motor including a shaft, a rotor disposed outside the shaft, a stator disposed outside the rotor, a sensing magnet coupled to the rotor, a circuit substrate disposed above the sensing magnet and including a sensor configured to detect a magnetic flux change due to the sensing magnet, and a cap member which covers the sensor, wherein the circuit substrate includes a first substrate, a second substrate disposed to be spaced apart from the first substrate, and connecting portions connecting the first substrate to the second substrate, the sensor is mounted on the second substrate, and the cap member is disposed to pass through a separating space between the first substrate and the second substrate.

A drive device includes an electric motor and a control unit which are integrated together. The control unit is configured to control the electric motor by using an electric power supply and a signal supplied through an external cable. The control unit includes: a parent circuit board, which is installed to the electric motor; and a connector module, which is configured to connect the parent circuit board to an external connector of the external cable. The connector module includes: a connector portion that is configured to be coupled with and decoupled from the external connector; a wiring module that is configured to receive the electric power supply and the signal from the external cable through the connector portion; and a plurality of connecting conductors that electrically connect the wiring module to the parent circuit board.

A motor control assembly for an electric motor. The motor control assembly is configured to be coupled to the electric motor, and includes a wireless communication module, an input power connector, and an inverter module. The wireless communication module is configured to receive a wireless signal from a system controller. The input power connector is configured to receive a DC voltage from an external power supply module. The inverter module is coupled to the wireless communication module and the input power connector. The inverter module is configured to convert the DC voltage to an AC voltage to operate the electric motor according to the wireless signal.

A motor control assembly for an electric motor. The motor control assembly is configured to be coupled to the electric motor, and includes a wireless communication module, an input power connector, and an inverter module. The wireless communication module is configured to receive a wireless signal from a system controller. The input power connector is configured to receive a DC voltage from an external power supply module. The inverter module is coupled to the wireless communication module and the input power connector. The inverter module is configured to convert the DC voltage to an AC voltage to operate the electric motor according to the wireless signal.

A power tool comprising: a conductive tube; a rear unit located at a rear end of the tube; a front unit located at a front end of the tube; a battery interface comprising a plurality of terminals, wherein the battery interface is located in the rear unit; a motor located in the front unit; at least one power line for supplying power from the rear unit to the front unit, wherein at least a portion of the power line is located within the tube; and an electromagnetic interference (EMI) suppressor for suppressing EMI from the at least one power line, the EMI suppressor comprising an electrical component electrically connecting the tube to a first terminal of the plurality of terminals.

A power tool comprising: a conductive tube; a rear unit located at a rear end of the tube; a front unit located at a front end of the tube; a battery interface comprising a plurality of terminals, wherein the battery interface is located in the rear unit; a motor located in the front unit; at least one power line for supplying power from the rear unit to the front unit, wherein at least a portion of the power line is located within the tube; and an electromagnetic interference (EMI) suppressor for suppressing EMI from the at least one power line, the EMI suppressor comprising an electrical component electrically connecting the tube to a first terminal of the plurality of terminals.

A controller including a first housing; a first cover disposed on an opening of the first housing; filter units disposed above the first cover; a power module unit disposed below the first cover; and a substrate disposed below the power module unit; wherein the power module unit includes a bracket; and a power module disposed between the bracket and the first cover, and wherein the power module includes a power module body; a plurality of first pins arranged to protrude downward from one side of the power module body; and five terminal pins arranged to protrude downward from the other side of the power module body, wherein an end portion of the first pin is coupled to the substrate.

An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.