An electric-power conversion apparatus has a heat sink in which one side portion out of a pair of side portions that extend in a direction perpendicular to the axial direction of a motor is formed shorter than the other side portion thereof; a lower case to which the heat sink is fixed is fastened to a driving apparatus through the intermediary of fixing portions at the both end portions of each of the pair of side portions of the heat sink or at respective positions in the vicinity of the both end portions of each of the pair of side portions of the heat sink; at least one of a reactor and capacitors is disproportionately disposed to be closer to said one side portion than to said the other side portion of the heat sink.

The invention relates to a power converter assembly including at least two power converter units; a busbar; at least two connecting elements, each connecting element electrically connecting one of said power converter units to the busbar, thereby interconnecting the at least two power converter units; and at least one converter housing, enclosing and shielding at least one of said power converter units. It further includes a busbar housing in which the busbar is contained and shielded, wherein the at least two connecting elements are electrically isolated from the busbar housing and from the at least one converter housing. The invention further relates to a working machine and a power system including said power converter assembly.

An integrated controller (A) for a vehicle, and a vehicle (B), where the integrated controller (A) includes a box body (10), a high-voltage power distribution module (900) disposed in the box body (10), and a left driving motor controller (300), a right driving motor controller (400), an air compressor motor controller (500), a steering motor controller (600), and a DC-DC voltage converter (700) that are all connected to the high-voltage power distribution module (900); and the box body (10) is provided with a plurality of input/output interfaces corresponding to the high-voltage power distribution module (900), the left driving motor controller (300), the right driving motor controller (400), the air compressor motor controller (500), the steering motor controller (600), and the DC-DC voltage converter (700).

Disclosed is a modular housing for drivers used for LED lamps. The housing includes connectors for AC in from a power source, DC out to the lamps, and also has connectors allowing for control lines to be received from a control box. The housing includes an arrangement for creating two opposite stacks of drivers. The fronts of the drivers are cooled by circulating air through the space between the stacks, and heat is also dissipated through the side walls of the housing, which acts as a heat sink. The number and specifications of the drivers in the housing are configured such that every module is able to serve a number of LED lamps.

A sub-module is disclosed. A sub-module according to an embodiment of the present invention comprises a short-circuiting control part. The short-circuiting control part comprises a movable member slidably coupled to a frame on which capacitor assemblies are seated. A variable connector is coupled to the movable member. Moreover, a plurality of short-circuiting blocks are arranged on the frame while being spaced away from each other. When the movable member has slid, the variable connector comes into contact with one or more short-circuiting blocks adjacent to each other to be electrically conductive. The short-circuiting blocks are connected to the capacitor assemblies, respectively, to be electrically conductive. Therefore, a plurality of capacitor elements can be short-circuited simultaneously only by moving the movable member.

A modular electronic power converter is disclosed and includes a first housing, a second housing, and a coupling element. The coupling element is arranged between the housings and is connected to at least one of the housings via a detent connection.

An inverter power assembly includes: a mounting frame; a power module mounted on the mounting frame; and a capacitor electrically connected to the power module. The inverter power assembly has the power module mounted on the mounting frame and the capacitor electrically connected to the power module, which leads to a simple and compact structure and a reasonable arrangement for the entire inverter power assembly.

An electrical apparatus disclosed herein includes first/second electrical units configured to be fixed to each other. The first electrical unit has a first surface including a connector. The second electrical unit has a second surface facing the first surface of the first electrical unit. The second surface includes a socket configured to fit with the connector. One of the first and second electrical units includes a stud bolt extending toward the other of the first electrical unit and the second electrical unit, and the other of the first and second electrical units includes a bolt hole through which the stud bolt is configured to pass. When the second electrical unit is separated from the first electrical unit with the second surface facing the first surface, a bolt-hole distance from the stud bolt to the bolt hole is shorter than a connector-socket distance from the connector to the socket.

A semiconductor module is disclosed. The semiconductor module may include a housing having a sidewall portion, a housing support plate coupled to a bottom surface of the sidewall portion such that the housing support plate and the sidewall portion define an interior space of the housing of the semiconductor module, and a semiconductor device disposed within the interior space and fixedly coupled to the housing. The semiconductor module may further include a cover member fixedly attached to a top surface of the sidewall portion such that the cover member, the housing and the housing support plate form a protective enclosure for the semiconductor device.

An inverter for converting an input-end direct current into an output-end alternating current to be fed into an AC voltage supply system includes a first housing part with direct current connections for receiving direct current lines of a direct current generator, a second housing part with alternating current connections for receiving alternating current lines of an AC voltage supply system, a third housing part for accommodating power-electronics components of a DC voltage converter, and a fourth housing part for accommodating power-electronics components of an inverter bridge circuit. The housing parts each have an essentially planar rear wall and are arranged in such a way that they enclose a cooling-air duct with an essentially rectangular cross section, wherein the first housing part is arranged opposite the second housing part and the third housing part is arranged opposite the fourth housing part. The inverter also includes a heat sink, which has two essentially planar cooling faces opposite one another arranged in the cooling-air duct, wherein the cooling faces are assigned to the rear walls of the third housing part and the fourth housing part and are in thermal contact with power-electronics components arranged in these housing parts.