An embodiment relates to a controller and a motor assembly comprising same, the controller comprising: a substrate; a controller housing disposed on the substrate; a CM filter unit disposed between the substrate and the controller housing; a DM filter unit disposed under the CM filter unit; a controller cover disposed between the substrate and the DM filter unit; a power module unit disposed between the substrate and the controller cover; and a connector unit coupled to the substrate, wherein the power module unit comprises a power module and a mold unit surrounding the power module. Accordingly, the heat generating problem of the power module unit can be resolved.

A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

Air circulation passages connect an accommodation space of an electronic control unit to the outside to circulate air to buffer internal pressure fluctuations. The accommodation space side of the air circulation passages is formed as a divided air circulation passage with a plurality of passages, a cooling object member is arranged to come in thermal contact with air flowing through the divided air circulation passage, and the total cross-sectional area of the divided air circulation passage is smaller than the cross-sectional area of the air circulation passages that are not divided. Because the accommodation space of the electronic control unit is connected to the outside, internal pressure fluctuations can be buffered, and increasing the flow velocity of the air flowing through the divided air circulation passage on the accommodation space side of the air circulation passages allows heat inside the accommodation space to be efficiently radiated to the outside.

The bus bar includes the motor connection member electrically connected to the coil provided in the motor, and the terminal member that is formed of a separate member from the motor connection member and is electrically connected to the external terminal. The motor connection member includes the body portion electrically connected to the coil, and the bent portion that is bent at the first end portion of the body portion in a direction intersecting with the body portion. The terminal member is connected to the bent portion.

An electric pump includes a motor including a rotor rotatable about an axis extending in an axial direction and a stator with a coil wire, a pump connected to the rotor, a circuit board on a first side in the axial direction of the motor, and a coil guide between the motor and the circuit board. The coil wire extends to the first side in the axial direction and is connected to the circuit board. The coil guide includes a first portion guiding the coil wire along the axial direction, and a second portion which faces the motor and in which the first portion is opened. The second portion is a surface inclined to the first side in the axial direction toward an opening of the first portion. A width of the second portion as viewed from the axial direction decreases toward the opening of the first portion.

An electric power generator is provided for a human-powered vehicle. The electric power generator includes an axle, a stator, a rotor and a first electrical cable. The axle has a first axial end, and a second axial end. The stator has a first axial stator-end that faces the first axial end of the axle with respect to the rotational center axis and a second axial stator-end that faces the second axial end of the axle with respect to the rotational center axis. The rotor is rotatably mounted on the axle to rotate around a rotational center axis of the electric power generator. The first electrical cable is electrically connected to the stator on the first axial stator-end of the stator. The first electrical cable extends axially through the stator toward the second axial stator-end of the stator with respect to the rotational center axis.

A rotating electric machine includes a stator housed in a case, from which a power line is pulled out, and a temperature sensing element provided on the stator. The rotating electric machine includes a harness retainer that guides a wire harness that extends from the temperature sensing element, toward an inner circumferential wall of the case.

An electric pump includes a motor including a rotor rotatable about an axis extending in an axial direction and a stator, a circuit board on a first side in the axial direction of the motor, a pump mechanism connected to the rotor on a second side in the axial direction of the motor, a housing with a housing space for the motor, the pump mechanism, and the circuit board, and a seal member. The stator includes a coil wire extending to the first side and connected to the circuit board. The seal member includes a first surface facing the motor and a second surface facing the circuit board, a first guide penetrating the seal member in the axial direction, a potting material between the coil wire and the first guide, and a second guide which is on the first surface and in which the first guide is opened.

In accordance with one aspect of the present disclosure, an electronic device includes a housing, a contact member attached to the housing, and a vibration generating device. The vibration generating device is fixed to the contact member or the housing. A gap is formed between a surface of the vibration generating device facing the housing and a surface of the housing facing the vibration generating device.

A connection structure of an electric component, a motor and a connection method of an electric component are provided. The connection structure of the electric component includes: an electric component main body having a connection terminal; a connector for wiring which is connected with the connection terminal; a base member; and a cover member. The base member is provided with an accommodation recessed part which accommodates inside a connected portion between the connection terminal and the connector. The accommodation recessed part has an opening part opened to an upper side. The cover member is attached to the base member so as to cover the opening part. An inside of the accommodation recessed part is filled with a sealing material which seals the connected portion between the connection terminal and the connector, and the sealing material fixes the connected portion, the base member and the cover member to each other.