CN210780253U - Plastic package stator and plastic package motor using same - Google Patents
Plastic package stator and plastic package motor using same Download PDFInfo
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- CN210780253U CN210780253U CN201922065340.3U CN201922065340U CN210780253U CN 210780253 U CN210780253 U CN 210780253U CN 201922065340 U CN201922065340 U CN 201922065340U CN 210780253 U CN210780253 U CN 210780253U
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Abstract
The utility model discloses a plastic package stator and plastic package motor using the same, which comprises a stator core, an end insulation, a coil winding and a plastic package body, wherein the stator core comprises a yoke part and a plurality of tooth parts protruding from the inner side of the yoke part, a slot embedding groove is formed between two adjacent tooth parts, a slot insulation strip is installed in the slot embedding groove and is used for shielding the slot opening of the slot embedding groove on the motor, the slot insulation strip comprises an insulation top plate and a plurality of insulation sheets, the top parts of the insulation sheets are connected with the bottom surface of the insulation top plate, the insulation sheets are distributed along the top plate at intervals and are inserted in the slot embedding groove, an arc-shaped groove is arranged on the inner side surface of the insulation sheet, the arc-shaped groove faces to the slot opening of the slot embedding groove, the plastic package body permeates into the arc-shaped groove when in injection molding, the thickness between the insulation sheets and the slot, effectively prevent to have the hidden danger bad with stator core notch creepage distance after the enameled wire receives the impact of moulding plastics.
Description
The technical field is as follows:
the utility model relates to a plastic envelope stator and plastic envelope motor of using thereof.
Background art:
the existing plastic package motor has relatively high full rate of a motor slot with high power, an enameled wire which is closer to a slot opening is easily dispersed by large impact force of BMC (bulk molding compound) of a feeding hole to cause copper exposure, the manufacturing process of the plastic package motor determines that the enameled wire has a mutual extrusion phenomenon after high-temperature BMC (bulk molding compound) fluid injection molding, and once the enameled wire is extruded, copper exposure is easily caused to cause defects.
In the related art in the field, in order to solve the above problem, for a copper wire or aluminum wire plastic package motor with a high groove filling rate, a notch insulating strip is placed at a notch position at a feed port. However, this solution has the following disadvantages: when moulding plastics, the BMC material between notch and the notch insulating strip is too thin, leads to droing easily, still can appear the enameled wire receive BMC impact after exist with the stator core notch between the bad hidden danger of creepage distance.
The utility model has the following contents:
the utility model aims at providing a plastic envelope stator and plastic envelope motor of using thereof, BMC material between notch and the notch insulating strip is too thin among the solution prior art, leads to droing easily, still can appear the enameled wire receive BMC impact after exist with the stator core notch between the technical problem of the bad hidden danger of creepage distance.
The purpose of the utility model is realized by the following technical scheme.
The utility model aims at providing a plastic envelope stator, including stator core, install the tip insulation on stator core, around coil winding and the plastic-sealed body on the tip insulation, stator core includes yoke portion and a plurality of convex tooth portions in the follow yoke portion inboard, form the rule groove between two adjacent tooth portions, the inboard of tooth portion encloses into the hole, install the notch insulating strip in the rule groove, the notch insulating strip is used for sheltering from the notch of rule groove on the motor, stator core, the tip insulation, coil winding and notch insulating strip are moulded plastics into a whole through the plastic-sealed body, its characterized in that: the notch insulating strip includes insulating roof and a plurality of insulating piece, and the top of a plurality of insulating pieces is connected with the bottom surface of insulating roof, and roof interval distribution is followed to a plurality of insulating pieces, and insulating roof supports on the tip is insulating, and the insulating piece cartridge is equipped with the arc wall on the medial surface of insulating piece in the rule groove, and the arc wall permeates in the arc wall towards the notch of rule groove when the plastic-sealed body moulds plastics.
Be equipped with a plurality of exhaust holes on the insulating roof, be equipped with first exhaust groove on the lateral surface of insulating piece, the exhaust hole is linked together with first exhaust groove.
A plurality of bulges protrude on the bottom surface of the insulating top plate, gaps are formed between the bulges and the insulating sheets, second exhaust grooves are formed in the inner side surfaces of the bulges, and the second exhaust grooves are communicated with the exhaust holes.
The outer side surface of the projection is an inclined surface.
The number of the insulating sheets is 2 or 4.
The insulating top plate is a flat plate, the insulating top plate is arc-shaped, a plurality of grooves are formed in the outer side wall face of the insulating top plate, and the grooves are located between the two insulating sheets.
The bottom of the insulating sheet is conical.
The first exhaust groove and the second exhaust groove are semicircular grooves.
A coil winding is wound around the yoke.
The utility model provides a plastic envelope motor, includes plastic envelope stator, its characterized in that: the plastic package stator is the plastic package stator.
Compared with the prior art, the utility model, following effect has:
1) the utility model discloses a stator core, install the tip insulation on stator core, around coil winding and the plastic-sealed body on the tip insulation, stator core includes yoke portion and from a plurality of convex tooth portions of yoke portion inboard, form the rule groove between two adjacent tooth portions, the inboard of tooth portion encloses into the hole, install the notch insulating strip in the rule groove, the notch insulating strip is used for sheltering from the notch of rule groove on the motor, stator core, the tip insulation, coil winding and notch insulating strip are moulded plastics into a whole through the plastic-sealed body, its characterized in that: the notch insulating strip comprises an insulating top plate and a plurality of insulating sheets, the tops of the insulating sheets are connected with the bottom surface of the insulating top plate, the insulating sheets are distributed at intervals along the top plate, the insulating top plate is supported on end insulation, the insulating sheets are inserted into the wire embedding grooves, arc-shaped grooves are formed in the inner side surfaces of the insulating sheets and face the notches of the wire embedding grooves, and a plastic package body permeates into the arc-shaped grooves during injection molding, so that the thickness between the insulating sheets and the notches of the wire embedding grooves can be increased, the bonding force of the notch insulating strip and a stator core after injection molding is improved, the integral structural strength is high, and the hidden trouble that the creepage distance between the enameled wire and the notches;
2) other advantages are detailed in the detailed description of the embodiments.
Description of the drawings:
fig. 1 is a perspective view of a first embodiment of the present invention;
fig. 2 is an exploded perspective view of a first embodiment of the present invention;
fig. 3 is a perspective view of a stator core according to a first embodiment of the present invention;
fig. 4 is a front view of a first embodiment of the present invention;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a partial enlarged view of B in FIG. 5;
fig. 7 is a perspective view of a slot insulating strip according to an embodiment of the present invention;
fig. 8 is another perspective view of a slot insulating strip according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a slot insulating strip according to an embodiment of the present invention;
fig. 10 is a front view of a slot insulating strip according to an embodiment of the present invention;
fig. 11 is a cross-sectional view of C-C in fig. 10.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the following detailed description of preferred embodiments and accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 11, the embodiment provides a plastic package stator, including stator core 1, install end insulation 2 on stator core 1, wind coil winding 3 and the plastic package body on end insulation 2, stator core 1 includes yoke portion 11 and a plurality of tooth portions 12 protruding from yoke portion 11 inboard, form rule groove 13 between two adjacent tooth portions 12, bore 14 is enclosed to the inboard of tooth portion 12, install notch insulating strip 4 in rule groove 13, notch insulating strip 4 is used for sheltering from the notch 131 of rule groove 13 on the motor, stator core 1, end insulation 2, coil winding 3 and notch insulating strip 4 are moulded plastics into a whole through the plastic package body, its characterized in that: notch insulating strip 4 includes insulating roof 41 and a plurality of insulating piece 42, the top of a plurality of insulating pieces 42 is connected with insulating roof 41's bottom surface 411, a plurality of insulating pieces 42 are along roof 41 interval distribution, insulating roof 41 supports on end insulation 2, insulating piece 42 cartridge is in rule groove 13, be equipped with arc 422 on insulating piece 42's the medial surface 421, arc 422 is towards rule groove 13's notch 131, the infiltration is in arc 422 when the plastic-sealed body is moulded plastics, can increase the thickness between insulating piece 42 and rule groove 42's notch 131, improve the cohesion after notch insulating strip 4 and stator core 1 are moulded plastics, holistic structural strength is high, effectively prevent to have after the enameled wire receives the impact of moulding plastics with the bad hidden danger of stator core notch creepage distance.
Be equipped with a plurality of exhaust holes 412 on insulating roof 41, be equipped with first exhaust groove 423 on the lateral surface 422 of insulating piece 42, exhaust hole 412 is the intercommunication with first exhaust groove 423, exhausts when being convenient for mould plastics BMC.
A plurality of protrusions 413 protrude from the bottom surface 411 of the insulating top plate 41, a gap 410 is formed between each protrusion 413 and the insulating sheet 42, a second exhaust groove 415 is formed in the inner side surface 414 of each protrusion 413, and the second exhaust grooves 415 are communicated with the exhaust holes 412, so that exhaust is facilitated during BMC injection molding.
The outer side 416 of the protrusion 413 is a bevel to avoid scraping the paint skin of the enameled wire when the slot insulation strip 4 is assembled.
The number of the plurality of insulation sheets 42 is 2 or 4.
The insulating top plate 41 is a flat plate, the insulating top plate 41 is arc-shaped, a plurality of grooves 418 are arranged on the outer side wall surface 417 of the insulating top plate 41, and the grooves 418 are located between the two insulating sheets 42, so that interference between the flat plate of the slot insulating strip 4 and the convex blocking piece on the end insulating layer is avoided.
The bottom of the insulation sheet 42 is conical, so that the insulation sheet 42 can be conveniently inserted into the wire embedding groove 13.
The first exhaust groove 423 and the second exhaust groove 415 are semicircular grooves.
The coil winding 3 is wound around the yoke 11.
Example two:
the utility model provides a plastic envelope motor, includes plastic envelope stator, its characterized in that: the plastic package stator is the plastic package stator described in the first embodiment.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.
Claims (10)
1. The utility model provides a plastic envelope stator, including stator core (1), install tip insulation (2) on stator core (1), coil winding (3) and the plastic envelope body around on tip insulation (2), stator core (1) include yoke portion (11) and from yoke portion (11) inboard convex a plurality of tooth portion (12), form rule groove (13) between two adjacent tooth portion (12), hole (14) are enclosed into to the inboard of tooth portion (12), install notch insulating strip (4) in rule groove (13), notch insulating strip (4) are used for sheltering from notch (131) of rule groove (13), stator core (1), tip insulation (2), coil winding (3) and notch insulating strip (4) are moulded plastics into a whole through the plastic envelope body, its characterized in that: notch insulating strip (4) are including insulating roof (41) and a plurality of insulating piece (42), the top of a plurality of insulating pieces (42) is connected with bottom surface (411) of insulating roof (41), roof (41) interval distribution is followed in a plurality of insulating pieces (42), insulating roof (41) support on tip is insulating (2), insulating piece (42) cartridge is in rule groove (13), be equipped with arc wall (422) on medial surface (421) of insulating piece (42), arc wall (422) are towards notch (131) of rule groove (13), infiltration is in arc wall (422) when the plastic-sealed body is moulded plastics.
2. The plastic package stator according to claim 1, wherein: a plurality of exhaust holes (412) are formed in the insulating top plate (41), a first exhaust groove (423) is formed in the outer side face (422) of the insulating sheet (42), and the exhaust holes (412) are communicated with the first exhaust groove (423).
3. The plastic package stator according to claim 1 or 2, wherein: a plurality of bulges (413) protrude from the bottom surface (411) of the insulating top plate (41), a gap (410) is formed between each bulge (413) and the corresponding insulating sheet (42), a second exhaust groove (415) is formed in the inner side surface (414) of each bulge (413), and the second exhaust groove (415) is communicated with the exhaust holes (412).
4. The plastic package stator according to claim 3, wherein: the outer side surface (416) of the protrusion (413) is an inclined surface.
5. The plastic package stator according to claim 4, wherein: the number of the insulating sheets (42) is 2 or 4.
6. The plastic package stator according to claim 5, wherein: the insulating top plate (41) is a flat plate, the insulating top plate (41) is arc-shaped, a plurality of grooves (418) are arranged on the outer side wall surface (417) of the insulating top plate (41), and the grooves (418) are positioned between the two insulating sheets (42).
7. The plastic package stator according to claim 6, wherein: the bottom of the insulation sheet (42) is conical.
8. The plastic package stator according to claim 3, wherein: the first exhaust groove 423 and the second exhaust groove 415 are semicircular grooves.
9. The plastic package stator according to claim 3, wherein: the coil winding (3) is wound around the yoke (11).
10. The utility model provides a plastic envelope motor, includes plastic envelope stator, its characterized in that: the plastic stator is the plastic stator according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922065340.3U CN210780253U (en) | 2019-11-26 | 2019-11-26 | Plastic package stator and plastic package motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922065340.3U CN210780253U (en) | 2019-11-26 | 2019-11-26 | Plastic package stator and plastic package motor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210780253U true CN210780253U (en) | 2020-06-16 |
Family
ID=71040370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922065340.3U Active CN210780253U (en) | 2019-11-26 | 2019-11-26 | Plastic package stator and plastic package motor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210780253U (en) |
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2019
- 2019-11-26 CN CN201922065340.3U patent/CN210780253U/en active Active
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