Abstract: A slide-contact portion of a motor has a slide-contact face that contacts a rotating rotor. The slide-contact portion is composed of a material containing an intermetallic compound phase produced by chemical reaction between a first metal which is Sn or an alloy including Sn and a second metal which is a CuNi alloy, a CuMn alloy, an AgPd alloy, a CuAl alloy, or a CuCr alloy.

Abstract: A method of constructing an electrical machine by assembling a first structure (one of a rotor and stator structure) and a second structure (the other of the rotor and stator structure), along with a plurality of first elements (one of a plurality of permanent magnet elements and a plurality of winding elements) and a plurality of second elements (the other plurality of the permanent magnet elements and winding elements). The first elements are attached to a rim of the first structure, and the second elements are attached to the first elements, this attachment being caused by a magnetic attraction. The first structure is assembled with the second structure such that the second elements are positioned for a posterior attachment to a rim of the second structure, and the second elements are attached to the rim of the second structure.

Abstract: Comparison circuitry includes a comparator having a first input configured to receive a pixel signal. A switch is coupled to a second input of the comparator, a reference generator, and a ramp generator. A first capacitance is coupled to the switch. The switch is configured to couple the first capacitance to the reference generator to charge the first capacitance to a reference voltage from the reference generator prior to a ramp event in a ramp signal, and to couple the first capacitance to the ramp signal from the ramp generator at an onset of the ramp event in the ramp signal. The first capacitance is coupled to provide positive current injection into the ramp signal at the onset of the ramp event in the ramp signal to reduce a ramp settling time in the ramp signal, which is provided to the second input of the comparator.

Abstract: Power tools with housings or hammer cases include a thin wall titanium shell tapering from a smaller forward section to a larger rearward section; with at least the rearward section having a wall with a substantially constant wall thickness and an interface flange that includes an outer perimeter profile that is curvilinear and defines a plurality of outwardly extending detents that provide an interference fit with the wall of the hammer case.

Abstract: The present invention is directed to systems for providing a pathway for at least one electrical conductor to supply current from a vehicle or marine craft power source to a steering wheel comprising at least one working element for heating or controls. The present invention utilizes a brush and slip ring assemblies inside a hub for infinite rotation of the steering wheel while still maintaining a path for current to travel through the hub to the wheel.

Abstract: A linear actuator includes a housing with an electric motor, which through a transmission drives a spindle with a spindle nut. To the spindle nut is secured a tubular adjustment element, which is guided in a guide tube. A bushing is secured at the rear end of the guide tube for securing the guide tube to the chassis of the actuator. Expediently, the securing is done with stampings from the outer side of the mounting bushing and into the guide tube. These stampings are appropriately done opposite channels, such as screw channels in the guide tube, such that the stampings are received in the channels and do not protrude into the guide tube and prevent the movement of the spindle nut and the adjustment element.

Abstract: The present invention relates to a motor and a brake device including the same, wherein the motor including: a rotary shaft; a rotor part in which the rotary shaft is disposed at the center thereof; a stator part disposed on the outside of the rotor part; a housing accommodating the rotor part and the stator part, and having an opening formed at one side thereof; and a motor cover disposed at the opening of the housing, wherein the motor cover includes: a motor cover body; a first protruding part and a second protruding part, which are each formed at a predetermined location and configured to protrude in the radial direction from the center of the motor cover body; and a third protruding part formed to protrude from an edge of the motor cover body, and a sealing part is further disposed between the second protruding part and the end portion of the housing disposed between the second protruding part and the third protruding part.

Abstract: A rotor includes a magnet yoke and a number of permanent magnets. The magnet yoke defines a number of accommodating slots therein, and each of the permanent magnets is received in one of the accommodating slots. An elastic member protrudes from the magnet yoke towards each of the accommodating slots, the permanent magnets are inserted in the corresponding accommodating slots, and the elastic members are bent and abut against the permanent magnets. A motor and a power tool include the rotor are also disclosed.

Abstract: The present invention relates to a brush holder assembly (100) for an electric motor (1) of a motor vehicle equipment item comprising: a plate (9) intended to hold at least one connection brush (7) against a collector (6) arranged on a rotor (6) of en electric motor (1), the plate (9) extending in a plane perpendicular to said rotor (6), at least one induction coil (19) intended to be connected to said connection brush (7), the brush holder assembly (100) also comprising at least one retaining element (27) of the at least one induction coil (18) configured to hold the induction coil (19) in a plane parallel to the plate (9).

Abstract: The present invention provides a conductor unit, which hardly generates an insulation-related fault, for a rotating electrical machine, and a rotating electrical machine. A supply line unit (30) of the rotating electrical machine comprises a conductor (35) and a resin part (32) that encapsulates at least a part of the conductor (35), where the resin portion has an air removing portion (51) leading to the conductor (35) in a powder coating coverage area (52), in which powder coating is further implemented on the resin part (32).

Abstract: An electric motor for a blower and the like has a commutator and a brush assembly for making electrical contact with the commutator. The brush assembly includes a brush holder and a brush slidably mounted to the brush holder. The brush holder includes a brush holder plate and a side portion extending from the brush holder plate. The brush is arc-shaped and includes a first surface contacting the brush holder plate and a second surface contacting the side portion of the brush holder. The side portion of the brush holder has a number of ribs contacting the second surface of the brush.

Abstract: A rotating electrical machine connection component includes a plurality of linear conductors, and a first molded resin portion that covers portions of the plurality of linear conductors and connects the plurality of linear conductors to each other. Each of the plurality of linear conductors includes a first straight portion extending out of the first molded resin portion in a direction parallel to a rotational axis of the rotor and connected to the terminal block, a second straight portion extending out of the first molded resin portion in a different direction from the first straight portion and a bent portion bent between the first and second straight portions. Of each of the plurality of linear conductors, a part of the first straight portion, the bend portion and a part of the second straight portion are covered by the first molded resin portion.

Abstract: A motor is disclosed. The motor includes a first end bell, a second end bell and a stator with a stator coil disposed between the first end bell and the second end bell. A rotor with a rotor shaft is disposed relative to the stator, the rotor configured to rotate relative to the stator and the rotor shaft extending through the first end bell. The second end bell includes a first wall and a chamber, the first wall adjacent to the stator. The first wall includes a wire through hole to permit a plurality of conductors of the stator to pass through the first wall and into the chamber. A connector block with a plurality of terminals are disposed within the chamber. Ends of each of the plurality of conductors are electrically connected to one of the plurality of terminals of the connector block.

Abstract: A brush holder apparatus has a stationary support member having two opposing grooves, a fork electrical connector, and a conductive bar passing through a main body of the stationary support member. A brush holder is releasably affixed to the stationary support member, and has two rails that slide along the grooves. The brush holder's knife electrical connector mates with the fork electrical connector. A brush spring is clipped on the brush holder, and presses a brush against a collector. A brush lead connects the brush to a brush terminal. The brush terminal has a generally L-shaped body with a lower part thereof retained under a terminal compression plate, and an upper part thereof located on a front side of the terminal compression plate. The brush terminal is removed from or installed into a front side of the brush holder, and by hand or without the use of any tools.

Abstract: An end cap assembly for an electric motor has a brush assembly, a circuit board, an inductor and a grounded metal element. The brush assembly has a plurality of brushes. The circuit board is fixed relative to the brush assembly. The inductor is electrically connected to the circuit board. The grounded metal element is positioned between the brushes and the inductor to absorb high frequency electromagnetic radiation transmitted from the brushes to the inductor.

Abstract: 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).

Abstract: An assembly has a handle, a brush holder, and a support that connect and disconnect to each other using a locking mechanism. The handle reversibly connects and disconnects from the brush holder. The locking mechanism includes a connecting member on the brush holder that attaches to the handle by interaction of a locking flange on the connecting member with a pair of teeth inside of the handle. Insertion of the support within the brush holder extends a post on the support through the connecting member to interact with the handle and enable disconnection of the handle from the brush holder when the support is fully engaged by the brush holder. The locking mechanism prevents the handle from releasing from the brush holder before the brush holder is completely seated on the support.

Abstract: A laminated carbon brush for a liquid pump motor slides in a liquid fuel on a disk-like commutator. The laminated carbon brush includes two layers of a lower resistivity layer and a higher resistivity layer. In both the lower resistivity layer and the higher resistivity layer, circular directional resistivities of the brush along a circular direction in the rotation of the commutator are higher than non-circular directional resistivities of the brush along a radial direction of the commutator and a perpendicular direction to the sliding surface of the commutator. A non-circular directional resistivity of the higher resistivity layer are higher than or equal to 90,000 ??·cm. No spark discharges occur if the fuel pump motor is operated to output a high power.

Abstract: A method includes bending back a wire fed to a first end side of a magnetic pole in a winding position by guiding the wire from a first end side to a second end side of a multi-pole armature, so that a first extending portion, a second extending portion, and an arc portion are formed. The first extending portion and the second extending portion are continuous via the arc portion. The first extending portion and the second extending portion are parallel to each other. The first extending portion and second extending portion are simultaneously inserted into slots on both sides of one or more of the magnetic poles in the winding position by moving the wire in a radial direction of the multi-pole armature. The slots are parallel to each other. The bending back the wire step and the simultaneous insertion step are performed repeatedly.

Abstract: The metal conductive plate 60 electrically connecting the bracket 51 on the output side and the bracket 52 on the counter-output side includes: a first abutting portion 61 formed on one end and abutted on a side of the bearing house 520 on the counter-output side, the first abutting portion 61 warping in a direction away from the case 20; a second abutting portion 62 formed on the other end and abutted on an inner side of the bracket 51 on the output side press-fitted on the case 20; and a conductive sleeve 63 connecting the first abutting portion 61 and the second abutting portion 62. The conductive plate 60 and the case 20 include a holding unit for holding a state in which the first abutting portion 61 is abutted on the side of the bearing house 520 on the counter-output side.

Abstract: A contact holder device for a hand-held power tool includes at least one main body that is disposed inside a housing unit of the hand-held power tool. The main body accommodates or fixes contact elements configured to transmit data signals and/or electrical energy. The main body has at least one disposition plane and at least one group of contact elements are disposed in the disposition plane. The main body has at least one further disposition plane and at least one further group of contact elements are disposed in the further disposition plane. The further disposition plane is disposed in an offset manner in relation to the disposition plane.

Abstract: A processing apparatus such as a heating and/or debulking apparatus that may be used to debulk a plurality of uncured composite layers to form an article such as an aircraft component may include a plurality of interconnected smart susceptor heater blankets. The plurality of smart susceptor heater blankets may be connected in series or in parallel, and may be controlled to uniformly heat the component during formation. The plurality of smart susceptor heater blankets may be supported by a deployment system that lowers the plurality of smart susceptor heater blankets toward, and raises the plurality of smart susceptor heater blankets away from, a working surface.

Abstract: An electric motor including a coil assembly having a plurality of coils which may be arranged in the shape of a cylinder. The motor further includes a rotor including a plurality of outer magnets configured as a first Halbach cylinder surrounding the coil assembly. An outer magnet housing of the rotor is coupled to and surrounds the plurality of outer magnets. A plurality of inner magnets are arranged as a second Halbach cylinder with the coil assembly being interposed between the plurality of inner magnets and the plurality of outer magnets. An inner magnet housing is coupled to the plurality of inner magnets and surrounds an output shaft.

Abstract: An external connection connector includes: an insulating resin molded body in which are formed integrally: a second flange portion that is fixed to a first axial end surface of a first bulging portion of a unit housing; an extended portion that extends from the second flange portion alongside an outer circumferential surface of the actuator housing toward the first axial end; a first flange portion that extends radially inward from a first axial end of the extended portion; and a connector portion that is formed on the first flange portion; and a plurality of electrical conductors that are insert-molded into the insulating resin molded body such that first ends thereof protrude inside the connector portion and second ends thereof protrude into a connection window that is formed on a second bulging portion of a heatsink, the electrical conductors being connected to control portion connecting terminals inside the connection window.

Abstract: A first brush holder is assembled to a core-side connection plate by inserting a slit insertion portion into a slit from an outer circumferential side of the core-side connection plate, and a radial outside position of the first brush holder to the core-side connection plate is regulated by both sides in a circumferential direction of a first slit being inserted into a pair of guiding grooves. A radial outside position of the brush holder is regulated by being fixed to a counter-core-side connection plate by press-fitting a convex portion provided on a counter-core-side of the first brush holder into a second slit of a counter-core-side connection plate. A second brush holder is assembled to the counter-core-side connection plate from an outer circumferential side of the counter-core-side connection plate, and a radial outside position is regulated by the core-side connection plate.

Abstract: An electronically commutated motor has a rotor with a permanent magnet arrangement, a stator (30) with a bundle of laminations (32) and a winding (34).

Abstract: The invention relates to a contacting part (5) for a drive module (1), comprising: a main body for providing contacting of a brush-commutated drive motor (2) by means of brushes; at least one supply line (62), in particular a punched-grid line (62), for electrically contacting the drive motor (2); a circuit surface (57), to which a conducting track is directly applied by means of an MID technique; and at least one component (59), in particular a surface-mounted device (59), which is electrically connected to the conducting track (58).

Abstract: An electric motor has a stator, a rotor rotatable with respect to the stator, motor windings, a connection plate electrically connected to the motor windings, and a power lead for connecting the motor to a power source. The power lead is connected to the connection plate by an electrical connection and by a separate mechanical connection. The mechanical connection protects the electrical connection from vibration or movement which may otherwise break the electrical connection.

Abstract: An object of the present invention is to provide an electric motor which can prevent electric noise generated from a contact between a brush and a commutator from being radiated and diffused to the outside. An electric motor comprises: an armature shaft 28; a coil 29b attached to the armature shaft 28; a commutator 30 attached to the armature shaft 28, and electrically connected to the coil 29b; a brush through which an electric current is supplied to the commutator 30; a conductive shaft bearing 35 configured to rotatably support the armature shaft 28; a yoke 26 incorporated with the shaft bearing 35, and electrically connected to a ground conductor; a conductive shaft bearing 34 arranged in a direction along a center line of the armature shaft 28, different in position from the shaft bearing 35, and configured to rotatably support the armature shaft 28; and a contact plate 51 electrically connected to the shaft bearing 34, and electrically connected to the ground conductor.

Abstract: A disc power generator comprises a first housing and a second housing. The first housing and the second housing are locked and fixed together to enclose a receiving space. The disc power generator further comprises a first magnet set and a second magnet set provided in the receiving space. A plane where the first magnet set is located is parallel to a plane where the second magnet set is located, and a unidirectional magnetic field is formed between the first magnet set and the second magnet set. An armature parallel to the plane where the first magnet set is located is provided between the first magnet set and the second magnet set. The armature comprises a board. On the board, with the board as the center, multiple coils arranged at equal intervals in a circumferential form on a same plane are fixed mounted. The coils are in a spiral form, the plane where the coils are located is parallel to the board. The multiple coils are electrically connected to each other through circuits on the board.

Abstract: This brush holder assembly includes: a brush holder formed in a disk shape by molding of insulating resin, and including a pair of box fixing sections each including a groove formed from an outer peripheral side toward inside: and brush box assemblies each having a brush box which houses a brush therein, each of the brush box assemblies being disposed in the box fixing section. Each of the brush box assemblies is formed of box-like metal, and has a plurality of mounting legs. Additionally, each of the box fixing sections of the brush holder has a plurality of mounting holes. In this brush holder assembly, these mounting legs are inserted into the respective mounting holes, and the brush box assembly is fixed. Furthermore, in the brush holder assembly of the present invention, the brush holder assemblies face the brush holder through gaps. Additionally, a commutator motor of the present invention includes the above brush holder assembly.

Abstract: A gearbox includes: a gearbox main body made of resin that constitutes a part of a speed reducer to which a motor is mounted; and a terminal that conducts power supplied from an external source to the motor. The gearbox main body includes a through hole formed to correspond to a mold that is used to maintain a position of the terminal while the terminal is being integrated with the gearbox main body by insert molding. The through hole may function as a vent hole in the gearbox main body.

Abstract: A brush-holder for a motor vehicle starter comprising at least one first electrically conductive cage receiving a first brush having a first polarity, at least one second cage receiving a second brush having a second polarity different to the first polarity, at least one support plate on which the first cage and the second cage are attached, the support plate being electrically connected to the second polarity, and a deformable heat-sensitive member that is deformable from a pre-defined temperature, wherein the deformable member is arranged so as to electrically insulate the first cage relative to the support plate and wherein it further comprises a means for moving the first cage or the support plate in such a way as to establish contact between the first cage and the support plate following a deformation of the deformable member.

Abstract: An example method for fast ramp start-up during analog to digital conversion (ADC) includes opening a feedback bypass switch coupled to an amplifier to initiate an ADC operation, providing an injection current pulse to an inverting input of the amplifier, where the non-inverting input is coupled to a feedback bypass switch, integrating a first reference current coupled to the inverting input of the amplifier, where the integrating of the first reference current occurs due to the opening of the feedback bypass switch, and providing a reference voltage in response to the injection current pulse, the integrating of the first reference current, and a reference voltage coupled to a non-inverting input of the amplifier, where a level of the reference voltage is increased at least at initiation of the ADC operation in response to the injection current pulse.

Abstract: A rotary device having a brush that includes a slide-contact portion, a fixing section, and a conductive bonding material. The conductive bonding material bonds together the slide-contact portion and the fixing section. The conductive bonding material is composed of an intermetallic compound phase that is an alloy containing one of (1) at least two selected from a first group consisting of Sn, Cu and Ni, and (2) at least two selected from a second group consisting of Sn, Cu, and Mn.

Abstract: An electric motor is provided including a stator and an armature rotatably received within the stator, the armature having an armature shaft on which a commutator is mounted. The motor also includes a brush assembly having a brush card mount disposed around the commutator, a brush holder mounted on a surface of the brush card mount, and a brush disposed within the brush holder in sliding contact with the commutator to supply electric current to the commutator. A torsion spring is secured to the brush card mount adjacent the brush holder, the spring having a leg arranged to engage the back surface of the brush. A spring stop post is disposed proximate an outer periphery of the brush card mount to limit an outward movement of the leg of the spring away from the back surface of the brush.

Abstract: A valve-timing control apparatus includes a motor housing formed with an accommodating space; a permanent magnet provided along an inner circumference of the accommodating space of the motor housing; a rotor configured to rotate relative to the permanent magnet; a transmitting mechanism configured to transmit a rotational force of the rotor to a cam shaft; a switching brush mounted on the motor housing and configured to switch an energization of coil; a power-feeding brush provided to one of the motor housing and a fixed member and configured to feed electric power to the switching brush; a slip ring provided to another of the motor housing and the fixed member and being in contact with the power-feeding brush; a pigtail harness connecting the power-feeding brush with a power-feeding terminal; and contact portions bending the pigtail harness at a plurality of spots of the pigtail harness by contact with the pigtail harness.

Abstract: A mechanically commutated electric motor is at least partially arranged in a closure apparatus for a housing. The closure apparatus includes at least a first rod-like throttle coil and a second rod-like throttle coil which are wound in opposite directions with coil wire and which are arranged parallel to one another. The first throttle coil is electrically directly coupled to a first coupling element provided for electrical coupling to the mechanically commutated electric motor, and the second throttle coil is electrically directly coupled to a second coupling element provided for electrical coupling to the mechanically commutated electric motor, such that, when the mechanically commutated electric motor is connected to the coupling elements and the mechanically commutated electric motor is operated, the magnetic fluxes (Phi1, Phi2) in the first throttle coil and second throttle coil at least partially compensate one another.

Abstract: An actuating drive contains a housing which has a first housing part and a second housing part. The two housing parts each have an edge, each edge having an end face, and the two end faces face each other when the two housing parts are joined. The first housing part and the second housing part can be detachably joined. The actuating drive is configured to accommodate an exchangeable connection module for a cable feed. The exchangeable connection module can be inserted into an opening of the first edge of the first housing part and the exchangeable connection module can be connected in a form-closed manner to the end faces of the edges in a region of the opening when the two housing parts are joined. Thus, an actuating drive, in particular for ventilation flaps or fire dampers, having high flexibility in the electrical connection contacting is provided.

Abstract: A brush lead guide for a brush holder assembly configured to retain the leads extending from a brush in a desired position/orientation to ensure the leads do not interfere with movement of the brush within the brush holder. In some instances, the lead guide includes a first guide rail including a channel for receiving a first lead of the brush and a second guide rail including a channel for receiving a second lead from the brush. The lead guide maintains the leads in a position such that the leads are held within the width of the opening of the brush holder to ensure the leads do not interfere with movement of the brush within the brush holder during use of the brush holder assembly.

Abstract: A windscreen wiper motor with a housing is disclosed. In the housing, an armature shaft with a commutator is arranged, which cooperates with carbon elements arranged in the region of a carbon holder plate in carbon holder elements, which carbon elements are connected via electrical connections, in the form of strands, in an electrically conducting manner with voltage supply lines. An electrical connection and a voltage supply line are in a fixed manner in their respective end region in respectively a clamping holder element, where the clamping holder element is part of the carbon holder element.

Abstract: There is provided a motor, the motor comprising (1) a brush unit that is provided at one axial direction side of a motor main body, and that includes a first brush and a second brush, (2) a pair of power supply terminals that are provided at the brush unit, that are respectively electrically connected to either the first brush or the second brush, and that include connector connection portions to which external connectors connect and that extend out toward another axial direction side of the motor main body at respective other end sides of the power supply terminals, and (3) a pair of element connection portions that are respectively provided at the other end sides of the power supply terminals, and that are disposed offset from each other in the radial direction of the motor main body.

Abstract: An electric motor is provided including a stator assembly having a stator body and magnets attached to an inner surface of the stator body via an adhesive, and an armature rotatably received within the stator assembly and having an armature shaft on which a commutator is mounted. A brush assembly is provided including a brush card mount disposed around the commutator and a mating housing longitudinally extending from the brush card mount. The mating housing includes a cylindrical wall and a mating surface formed substantially perpendicularly to an inner surface of the cylindrical wall and arranged to mate with an end surface of the stator body. The mating surface of the mating housing includes posts longitudinally extending along the inner surface of the cylindrical wall and recessed surfaces formed therebetween, the posts being mounted on the end surface of the stator body.

Abstract: An assembly has a handle, a brush holder, and a support that connect and disconnect to each other using a locking mechanism. The handle reversibly connects and disconnects from the brush holder. The locking mechanism includes a connecting member on the brush holder that attaches to the handle by interaction of a locking flange on the connecting member with a pair of teeth inside of the handle. Insertion of the support within the brush holder extends a post on the support through the connecting member to interact with the handle and enable disconnection of the handle from the brush holder when the support is fully engaged by the brush holder. The locking mechanism prevents the handle from releasing from the brush holder before the brush holder is completely seated on the support.

Abstract: A brush assembly including a housing having a first opening, a second opening, and an interior space defined between the first opening and the second opening. The brush assembly further includes a removable cover at least partially received within the interior space and covering the first opening, and a brush at least partially received within the interior space and extending from the second opening. The brush is operable to move between an extended position and a retracted position. More of the brush is received within the interior space in the retracted position than in the extended position. The brush assembly further includes a contact received within a mounting aperture formed in the removable cover. The contact is electrically connected to the brush. The brush assembly also includes a spring coupled to the removable cover. The spring biases the brush into the extended position.

Abstract: The invention relates to a drill head and a device for drilling a bore in the ground, the drill head having a first unit coupleable with an inner drill pipe of a double drill pipe assembly and a second unit coupleable with the outer drill pipe of the double drill pipe assembly. By means of the inner drill pipe the first unit is rotatable about an axis of rotation relative to the second unit which is drivable by means of the outer drill pipe. The drill head has a sliding contact arrangement for establishing an electrical connection between the first unit and the second unit.

Abstract: A power tool is provided including a housing and an electric motor disposed within the housing, where the electric motor includes a stator and an armature rotatably received within the stator, and the armature includes an armature shaft on which a commutator is mounted. The power tool includes a brush assembly disposed around the commutator. The brush assembly includes at least two brushes in contact with the commutator and a circuit board mounted on the brush assembly and in electrical contact with the brushes. The circuit board includes at least one electromagnetic interference (EMI) suppression component electrically mounted thereon, the EMI suppression component being electrically coupled to the brushes.

Abstract: A modularized servo case includes a hollow first barrel and a hollow second barrel, each of which has a lower opening at a bottom end thereof. The first barrel and the second barrel have a first connecting portion and a second connecting portion disposed on outer surfaces thereof, respectively. The first and second barrels can be combined together by engagement between the first connecting portion and the second connecting portion. In this way, the different inner components required for the first and second barrels can be separately installed beforehand by modularization, and then the first and second barrels can be assembled. Therefore, the assembly is preferably convenient and the inner components can be assembled simultaneously, thus enhancing the whole production capacity and efficiency and facilitating the disassembly procedure in the later repair and maintenance operation.

Abstract: A brush holder apparatus includes a stationary support member having at least one groove and a fork electrical connector. A brush retainment member has a brush restraint apparatus having a plunger brush restraint configured to restrain a brush from sliding within the brush retainment member by pressing it against the brush retainment member. The brush retainment member has at least one rail configured to slide along the at least one groove, and a knife electrical connector configured to mate with the fork electrical connector. The brush retainment member is configured to be releasably affixed to the stationary support member. The stationary support member is configured for electrical connection to a collector mount, and the brush retainment member is configured to retain at least one brush.

Abstract: A brush holder apparatus includes a stationary support member having at least one groove and a fork electrical connector. A brush retainment member is configured to be releasably affixed to the stationary support member. The brush retainment member has at least one rail configured to slide along the at least one groove. The brush retainment member has a knife electrical connector configured to mate with the fork electrical connector. The stationary support member is configured for electrical connection to a collector mount and the brush retainment member is configured to retain at least one brush.