Disclosed is an inverter module, comprising a housing and an inverter body mounted within the housing. The housing and the inverter body are joined to form a cooling channel. A fan is mounted in the cooling channel. An air inlet and an air outlet in communication with the cooling channel are provided on the housing. The cooling channel is distributed at two sides of the inverter body. In the inverter module described above, the housing and the inverter body are joined to form the cooling channel, and the cooling channel at least is distributed at either side of the inverter body, thus allowing a cooling airflow to cool the inverter body from either side, favoring the implementation of even cooling, and increasing the cooling effect. Also disclosed is an inverter cabinet, which is applicable for the inverter module described above and provides an excellent cooling effect.

An apparatus includes: a power converter including a plurality of electronic switches, the electronic switches being controllable to produce a driver signal having a variable amplitude, frequency, and/or phase; and a single-piece base made of a thermally conductive polymer material. The single-piece base includes: a first side configured to hold the power converter; a second side; and one or more heat dissipating elements that extend from the second side. The heat dissipating elements are configured to dissipate heat generated by the electronic switches, and each of the one or more heat dissipating elements is made of the thermally conductive polymer material.

A system and apparatus for a ceiling fan electronics assembly including a housing with an interior for housing an electrical system. The electrical system can provide a supply of power to the ceiling fan as well as interpret electrical instruction signals for controlling the operation of the ceiling fan.

In a housing of a vehicle control device are formed a suction port for taking outdoor air and a discharge port for discharging air taken in through the suction port. A flow passage that connects the suction port and the discharge port is formed inside the housing. A blocking member, a radiator, and a blower are provided in the flow passage. The blocking member is provided at a position where the blocking member faces at least a portion of an opening face of the suction port in the flow passage and a distance between the blocking member and the suction port is in a predetermined range.

A motor drive device that closes a mounting hole for mounting a fan unit by way of a fan fixing member is provided with a structure that can effectively improve operability for maintenance. A bar serving as a regulating member of a motor drive device has a first projecting piece that is formed so as to curve downwards after extending in the horizontal direction from a top part thereof, and a second projecting piece that projects downwards from a bottom part thereof, and by the first projecting piece being placed in an upper insertion part and the second projecting piece being placed in a lower insertion part, a fan unit is fixed in a mounting hole of a flange.

A power converter for a railway vehicle includes a power converter body configured to be installed on the railway vehicle; a first radiating fin unit arranged on a front side on the power converter body for dissipating heat from the power converter body; a second radiating fin unit arranged on the power converter body on a rear side for dissipating heat from the power converter body; and an air duct that takes in air from a region other than regions in which the first and second radiating fin units are disposed while the railway vehicle is moving, the air duct extending into a fin separation space that is defined as a space between the first radiating fin unit and the second radiating fin unit so as to guide air that is taken in into the fin separation space.

An electronic equipment cooling device is provided, which has housing in which heat-generating components are housed, and which can cool surfaces of the housing. A blower fan blows air toward the surfaces via a chamber room. An inclined flat plate-like partition portion is provided inside the chamber room so as to distribute a desired amount of air corresponding to a heat generating ratio of the respective surfaces.

A power electronics cooling system includes a ram air fan with one or more blades and a ram air fan motor connected via an output shaft. The ram air fan draws in air and passes it across a heat exchanger to cool one or more cooling liquids. One or more pumps pressurize and pump the cooling liquids to various electronic components, including one or more motor controllers. The pumps may be mechanically or electrically coupled to the output shaft of the ram air fan, such that the motor of the ram air fan provides energy to the pumps.

An electric motor assembly includes a stator, a rotor, a motor housing, a rotatable shaft, a radial fan, and an air scoop. The motor housing at least partly houses the stator and rotor and presents an exterior motor surface. The rotatable shaft is associated with the rotor for rotational movement therewith, with the rotatable shaft extending along a rotational axis. The radial fan is mounted on the rotatable shaft exteriorly of the motor housing and is rotatable with the shaft to direct airflow in a radially outward direction. The air scoop extends radially outwardly relative to the radial fan and axially to receive radial airflow from the radial fan and turn the airflow axially to flow along the exterior motor surface. The air scoop includes spaced apart axially extending airflow vanes to guide the airflow as the airflow is turned axially.

A control cabinet for at least one electrical drive controller includes a control cabinet housing a first cabinet compartment formed in the control cabinet housing and having at least one inlet opening for fresh air, at least one first transfer opening and a fresh air duct flow-connecting the inlet opening to the first transfer opening. A second cabinet compartment is formed in the control cabinet housing and has at least one outlet opening for exhaust air, at least one second transfer opening, and an exhaust air duct flow-connecting the outlet opening to the second transfer opening. A third cabinet compartment is formed in the control cabinet housing and is sealed off in terms of flow from the first cabinet compartment, the second cabinet compartment, and the environment outside the control cabinet. A partition delimits the third cabinet compartment in terms of flow from the first cabinet compartment and the second cabinet compartment, and has the at least one first transfer opening and the at least one second transfer opening. The third cabinet compartment is in the form of a rack with at least one drawer, wherein each drawer is designed to receive an insertable control device.