Motor stator coil and in-wire embedding slot insulation paper shaping device

Abstract

The invention discloses a motor stator coil and in-wire embedding slot insulation paper shaping device. The device includes a hole-outside coil shaping device and a expanding device for expanding and shaping an in-hole coil; the expanding device comprises a mold core and an expansion pushing head which can move along the axial direction of the mold core; the expanding device comprises a plurality of expanding sheets which can move along the radial direction of the mold core; one end of each expanding sheet passes through an assembling slot and thereafter abuts against one end of the expansion pushing head, or a gap is left between the one end of the expanding sheet and the one end of the expansion pushing head; at least one part of each of the corresponding surfaces of the expanding sheet and the expansion pushing head is an oblique surface or a conical surface; and the other end of the expanding sheet is provided with a portion which abuts against a hole-outside coil and a portion which abuts against an in-hole coil, wherein the portion which abuts against the hole-outside coil and the portion which abuts against the in-hole coil are not located in the same circumferential surface. With the motor stator coil and in-wire embedding slot insulation paper shaping device of the invention adopted, after a stator coil is shaped, a creepage distance between the coil and a rotor can be increased.

Description

technical field [0001] The invention relates to a motor stator coil and an insulating paper shaping device in a wire embedding slot. Background technique [0002] For the stator of the motor, it is composed of a stator core and a coil, wherein a part of the coil is wrapped by insulating paper and embedded in the slot of the stator core to form a coil in the hole of the stator, and the other part of the coil is The outer coil of the stator is formed outside the inner hole of the stator core. Usually the coil is embedded longitudinally on the stator core manually or by a wire inserting machine. However, for stator cores with high slot fullness rate, main and auxiliary phases, etc., it is not convenient to insert wires once, and it needs two to three times to insert wires. To the creepage distance between the stator and the rotor, therefore, it is necessary to shape the coil after embedding the wire. [0003] The utility model patent whose notification number is CN204145220U...

AI Technical Summary

Problems solved by technology

Second, in the above-mentioned process of shaping the coil outside the hole by the clamping head 9, the clamping head 9 is synchronously displaced radially to the coil outside the hole, from figure 1 It can be seen that there is a distance between two adjacent clamping heads 9. Therefore, after these clamping heads 9 act on the coil, there will also be a distance between two adjacent clamping heads 9. Before, because the coils are not arranged evenly and neatly, the above-mentioned intervals cannot be suppressed by the locking teeth 901 for some enameled wires that are more messy, or for some warped enameled wires that are simultaneously pressed by the clamping head 9 on the coil outside the hole. , therefore, the coils outside the hole cannot be fully integrated

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