Patent classifications
H02K15/0068
Wiring device, motor stator and wiring method
A wiring device includes a plurality of trenches and a plurality of channel sets. The trenches at least include a first trench, a second trench and a third trench, bottoms of which are respectively located at different height positions. Each of the channel sets at least includes a first channel, a second channel and a third channel. The first channels penetrate the wiring device from an outer sidewall thereof to the first trenches, respectively, the second channels penetrate the wiring device from the outer sidewall thereof to the second trenches, respectively, and the third channels penetrate the wiring device from the outer sidewall thereof to the third trenches, respectively. The wiring device has the advantages of a simple structure and a low cost for molding and manufacturing, and is suitable to perform winding by a manual or automatic machine and thus can prevent first output wires of the coil windings with in phase or out of phase from entangling or knotting with each other.
PUMP WITH DIRECT CONNECTION OF STATOR TO PRINTED CIRCUIT BOARD
A pump includes an electric motor with a rotor rotatably mounted about an axis of rotation and circumferentially surrounding a stator. The stator includes a stator core and coils wound on the stator core. The coils are made from a winding wire with winding wire end sections electrically contacted at an end surface with a printed circuit board. The winding wire end sections, starting from the stator, extend radially outwardly to the axis of rotation and are directly contacted with the printed circuit board via insulation displacement contacts.
Stator of rotating electric apparatus
A stator of a rotating electric apparatus is disclosed. The stator includes a stator core that defines a plurality of slots that are located a circumference of the stator core. The stator further includes a stator coil that includes a plurality of conductors electrically connected, located in the plurality of slots, and configured to conduct electricity. The stator coil includes a plurality of phase coils that are each connected to a phase of a power source. A first conductor of the stator coil is connected to a power line and is located in an nth layer that is an outermost layer of one of the plurality of slots. An Nth conductor of the stator coil is connected to a neutral line and is located in an n−1th layer that is located nearer to a center of the stator than the nth layer.
Stator of a Brushless Motor
A stator of a brushless motor has an iron core, a bobbin, and a winding assembly. The iron core has multiple stator poles mounted on an interior annular surface of a core body and spaced apart from each other. The bobbin is mounted on one of two open ends of the core body and has a substrate, at least one neutral connector mounted on an upper surface of the substrate, and at least one neutral solder pad mounted in the at least one neutral connector. The winding assembly is formed by one wire wound on multiple stator poles and the connectors. The winding assembly is electrically connected to the at least one neutral solder pad.
ARMATURE AND MANUFACTURING METHOD OF ARMATURE
In this stator armature, a first leg portion has a first surface side part that has a thickness in a radial direction smaller than a thickness of a first leg portion body portion in the radial direction, a second leg portion has a second surface side part that has a thickness in the radial direction smaller than a thickness of a second leg portion body portion in the radial direction, and in the radial direction, a thickness of a joint portion is equal to or more than a thickness of a part other than the joint portion.
Positioning Device and Method for Positioning Wire Ends in the Manufacture of an Electrical Machine
A positioning device (10; 50; 60) for positioning wire ends (14) in the manufacture of an electrical machine (12) has a positioning unit (13) which has an alignment element (22a) and a counter-alignment element (22b) which are arranged one above the other in two parallel planes (16, 18) and can be displaced relative to each other along a displacement path (34), being at least partially superimposed or superimposable. Thereby, the alignment element (22a) has at least one through recess (24a) and the counter alignment element (22b) has at least one counter through recess (24b), which are arranged and designed in such a way that a clear positioning passage (99) perpendicular to the two planes (16, 18) of the alignment element (22a) and the counter-alignment element (22b), through which the at least one wire ends (14) can extend and the cross-sectional area of which can be varied by displacing the alignment and counter-alignment elements (22a, 22b) with respect to each other. In order to distort the wire ends as little as possible, the at least one through recess (24a) on the aligning element (22a) and the at least one counter through recess (24b) on the counter-aligning element (22b) each have two rectilinear edge sections (30a, 30b, 30c, 30d) which run in the respective plane (16, 18) at an oblique angle to the direction of displacement (
Electric machine and method for making electrical contact with a winding of an electric machine
An electric machine comprises a rotor and a stator, wherein the stator comprises a stator body which carries at least one respective winding of at least one phase, wherein the winding of the respective phase or at least one of the windings of the respective phase is conductively connected to a respective contact bridge, which connects the respective winding to an associated power source and/or drain, wherein the respective winding and the contact bridge connected to it each end in a conductor section which extends away from the stator body in the axial direction of the electric machine, these conductor sections being conductively connected to one another, wherein a fixing section of the respective contact bridge is arranged stationary with respect to a housing accommodating the stator by being fixed by an insulation element or directly, on the one hand, to the housing itself and/or, on the other hand, to the power source and/or drain, which, in turn, is fixed to the housing.
ELECTRIC MOTOR
A stator includes insulation including a back insulation portion covering a back stator portion, a first tooth portion covering a first tooth, a second tooth portion covering a second tooth. A first flange portion has a first face that is in facing relationship with the back insulation portion. A second flange portion has a second face that is in facing relationship with the back insulation portion. The first face and the second face together substantially defining a boundary plane, such that a cross-sectional slot area is defined between the back insulation portion, the first tooth portion, the second tooth portion, and the boundary plane. A plurality of conductive wires are arranged in the cross-sectional slot area, the wires defining a cross-sectional winding area within the cross-sectional slot area. A ratio of the cross-sectional winding area to the cross-sectional slot area is greater than or equal to 0.45.
STATOR, ELECTRIC MACHINE, CONNECTION BRIDGE AND METHOD FOR MANUFACTURING A STATOR
The invention relates to a stator which may be used within an electric rotating machine and a method for manufacturing a stator. The stator (200) comprises a stator core (100) having a plurality of slots (101, 101a, 101b) arranged in circumferential direction (C) of the stator core (100), a plurality of conductors (102, 103) forming a stator winding, wherein at least a radially outer conductor (102) and a radially inner conductor (103) are arranged along a radial direction (R) of each slot (101). At least one pair of a radially outer conductor (102) of a first slot (101a) and a radially inner conductor (103) of a second slot (101b) circumferentially spaced from the first slot (101a) is electrically connected by a connection bridge (1). The connection bridge (1) comprises a first base element (2) and a second base element (3) connected to a respective conductor (102, 103) and a top element (4) being connected to the base elements (2, 3) and preferably arranged in a larger distance from the stator core (100) than the first base element (2) and second base element (3).
Cold pressure welding apparatus, coil manufacturing apparatus, coil, and method of manufacturing the same
The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.