Methods and systems are provided for a winch including a motor and a contactor assembly positioned within a same housing. In one example, the contactor assembly is positioned at an end of an armature of the motor and may include a controller configured to control winch component operation. The contactor assembly is electrically coupled to the armature via a plurality of electrically conductive brushes.

The invention relates mainly to an assembly comprising a brush cage and a spiral spring (36), the spiral spring (36) comprising an axis (Y), a wound part (37) wound about the axis (Y) and an arm (39) extending from one end of the wound part (37), the brush cage comprising at least one lateral wall provided with an opening for the passage of the arm (39) through the lateral wall so that one end of the arm (39) can press against at least part of an end face of a brush, wherein the arm (39) comprises a first portion (391) of which the width (L5) measured along the axis (Y) is different from the width (L6) of the wound part (37) measured along the axis (Y) of the spiral spring (36).

Electric motors and machines including such electric motors, the electric motors having improved impact resistance. Features of the electric motors minimize axial shifting of the motor shaft and other components of the electric motor, and/or minimize damage to components caused by such axial shifting occasioned by an impact force on the motor.

Methods and systems are provided for a winch including a motor and a contactor assembly positioned within a same housing. In one example, the contactor assembly is coupled to the motor and includes two or more coils spaced apart from one another within a contactor housing of the contactor assembly and a brush assembly including a plurality of brushes surrounding a rotational axis of the motor and arranged axially to the motor armature.

An actuator with switchable releasing speed includes an actuation rod, a screw, and a motor. The motor drives the screw rotating so that the actuation rod axially moves relative to the screw. The motor includes a stator, a rotor, a plurality of commutators, and at least three brushes. The at least three brushes have a positive brush, a negative brush, and at least one auxiliary brush. The positive brush is connected to a positive DC voltage. One of the negative brush and the least one auxiliary brush is adjusted to connect to a negative DC voltage so as to change a rotational speed of the rotor, thereby controlling a movement speed of the actuation rod. Accordingly, the releasing speed of the actuator is switchable.

A drive including a commutator motor having a motor housing, an end shield secured to the housing, feedthroughs defined in the end shield, brushes mounted in the feedthroughs; and at least one stranded conductor forming a direct electrical and mechanical connection between a brush and the terminal contact arranged outside the motor housing.

Electric motors and machines including such electric motors, the electric motors having improved impact resistance. Features of the electric motors minimize axial shifting of the motor shaft and other components of the electric motor, and/or minimize damage to components caused by such axial shifting occasioned by an impact force on the motor.

Brush holder support plate (1) for an electric engine comprises a central through-hole (2) for the engine manifold and guide elements (10) for receiving brush holders (20) in sliding connection on the plate. The plate allows the brush holder to be mounted on the plate, engaging same in the direction running from the edge (1e) of the plate towards the central through-hole (2). The plate comprises a non-return stop (11) for each brush holder (20) after the latter has been mounted in sliding connection on the plate, the stop being elastically retractable. The brush holders (20) have a base shaped so as to be received in sliding connection in the guide elements (10) of the plate (1). They have a recess in the base of same suitable for being engaged by the corresponding non-return stop (11) of the plate (1).

An oscillating power tool, including: a housing; an output shaft for installing a working head, the output shaft being installed in the housing and extending out of the housing; a transmission mechanism, installed in the housing, and the transmission mechanism being connected to the output shaft; and a motor, installed in the housing, the motor being connected to the transmission mechanism and driving the transmission mechanism to drive the output shaft to move, where an outer diameter of the motor is in a range of 40 mm to 50 mm.

An electric working machine includes a motor, a circuit board having capacitors and choke coils for noise reduction, and a fixing tool for fixing the circuit board to a portion of a case of the motor including motor terminals for power feed. The circuit board includes input terminal members to receive an externally supplied driving power, and a ground connection member electrically coupled to the portion of the case. The capacitors couple the input terminal members to the ground connection member. The choke coils couple the input terminal members to the motor terminals. The ground connection member is arranged in a certain area of the circuit board, which is one of areas on the circuit board defined by dividing the circuit board with a straight line crossing a rotational shaft and is an area where the input terminal members are located. The capacitors are mounted in the certain area.