A controller assembly includes a plurality of controller units, and a heat dissipating unit interposed between the controller units. Male and female connectors are disposed in the controller units, and the connectors thereof are fitted to female and male connectors of the heat dissipating unit to thereby establish electrical contact therebetween. Upon driving electric actuators, heat generated in circuit boards of the controller units is dissipated to the exterior through a plurality of heat dissipating protrusions provided on the heat dissipating unit, so that heat generating sources of the circuit boards are cooled.

A modular interface system having a modular SPE-based bus system with an SPE-based twin-core line and a plurality of SPE-based connectors, wherein a plurality of modules, each of which has an SPE-based connector, can be electrically and mechanically coupled to the SPE-based bus system by means of the SPE-based connectors.

A drive system includes at least one drive unit, and at least one control device which at least partially influences the functionality of the drive unit and is connected to the drive unit along a connection region such that a thermal bridge is formed, and wherein the waste heat produced inside the thermal bridge during operation of the system, caused by the respective operating temperature of the drive unit and/or control device, can be discharged from the connection region by at least one heat pipe.

There has conventionally been a problem that a cable duct must be disposed as a separate member apart from a device when cable wiring between devices is carried out, and a fixed space is necessary for disposing the cable duct, and thus the space cannot be effectively used. An electrical device incorporates an electrical unit such as an inverter that is wired to a cable, and a cable duct part that houses a cable wired to another device, and has structure in which, by providing slide structure, the size of cable duct part can be adjusted in accordance with the requirements of cable wiring.

A frequency converter (10a, 10b, 10c) includes a housing (30), a circuit board (12a) arranged in the housing, and a coupling arrangement (20) arranged externally on the housing (30) for galvanically coupling the circuit board (12a) to an adjacently arranged second frequency converter (10b, 10c), wherein the coupling arrangement (20) either comprises a base portion (22) and a coupling member (26) movable with respect to the base portion (22) along a defined movement path, or is formed as a rigid busbar which is designed for simultaneous attachment to the frequency converter and the second frequency converter, and the coupling arrangement (22) is galvanically coupled to the circuit board (12a). The coupling arrangement (22) is connected to the circuit board (12a) by a spring element (40), wherein this spring element (40) has a fastening portion (44) on the circuit board side and a fastening portion (42) on the coupling arrangement side. The fastening portions are interconnected by a resilient spring portion (46).

A detachable industrial network module, including: a housing in which a plurality of through holes are formed; and a communication module embedded in the housing and including a plurality of terminal portions to be electrically connected to an external device, wherein the through holes of the housing are provided in a lattice pattern and the housing is selectively detachable from or attachable to an outer surface of the actuator module, at least one guide groove is provided in the housing to prevent wiring bundles coupled to the terminal portions of the communication module from interfering with each other, and the communication module is electrically connected to the actuator module by a sub-connector as a medium.

A modular actuator control system comprising first and second actuator control modules configured to control first and second actuators and each having a housing, control and power electronics, power and communication connections, an actuator power connection, a flow path in each housing between an inlet and outlet port that is configured to provide a liquid coolant to the power electronics in the housing, an attachment connecting the first and second housings of the first and second actuator control modules, and a coolant inlet port of the first actuator control module configured to connect to a fluid coolant source and a coolant outlet port of the first actuator control module connected to a coolant inlet port of the second actuator control module, wherein the first actuator control module and the second actuator control module are stacked in coolant fluid communication with each other.