CN207504651U - A kind of novel injection molding stator and its external rotor electric machine of application - Google Patents
A kind of novel injection molding stator and its external rotor electric machine of application Download PDFInfo
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- CN207504651U CN207504651U CN201721416202.XU CN201721416202U CN207504651U CN 207504651 U CN207504651 U CN 207504651U CN 201721416202 U CN201721416202 U CN 201721416202U CN 207504651 U CN207504651 U CN 207504651U
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- teeth portion
- injection molding
- stator
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Abstract
The utility model discloses a kind of novel injection molding stator and its external rotor electric machines of application, by being equipped with first boss on the insulation double wedge of the overhang insulation in injection moulded stator, first boss side is extended with second boss along double wedge toward public root portion direction, by increasing second boss, so that when increasing outer groove coiling, enameled wire inwardly squeezes, so as to reduce enameled wire line outlet groove and by not needing to be inserted into slot wedge in line embedding groove notch after increasing second boss, less manufacturing procedure improves production efficiency.
Description
Technical field：
The utility model is related to a kind of injection moulded stator and external rotor electric machines.
Background technology：
It is described fixed including stator core 1a, overhang insulation 2a and coil windings 3a as shown in Figure 1, existing injection moulded stator
Sub- iron core includes ring-shaped yoke portion and several first teeth portion and the second teeth portion stretched out outward from ring-shaped yoke portion, first teeth portion
Replace circumferential array with the second teeth portion, first teeth portion includes public root portion and stretches out outward from the public root portion
Several double wedges form the first line embedding groove 4a, shape between first teeth portion and the second teeth portion between two adjacent double wedges
Into the second line embedding groove 5a；The overhang insulation includes annular insulation yoke portion 6a and is stretched out outward from annular insulation yoke portion 6a several
First insulation teeth portion 6a1 and the second insulation teeth portion 6a2, the first insulation teeth portion and the second insulation teeth portion alternating circumferential array,
The first insulation teeth portion includes public insulation root portion 6a11 and is stretched out outward from public insulation root portion 6a11 several exhausted
Edge double wedge 6a12, the outer ledge of the insulation double wedge are equipped with boss 7a,
After first line embedding groove insertion coil windings, coil windings walk out the first line embedding groove in order to prevent, can be in the first embedding
Slot notch is inserted into slot wedge, and slot wedge easily hinders line, and causes often to occur in coil windings during stator winding because boss is too small
Enameled wire go out slot, so as to cause interturn in stator windings breakage ratio height.
Invention content：
The purpose of this utility model is to provide a kind of novel injection molding stator and its external rotor electric machine of application, can solve existing
The problem of occurring enameled wire line during stator winding and go out slot, hindering line and turn-to-turn broken string.
The purpose of this utility model is achieved by following technical proposals.
A kind of novel injection molding stator, including stator core, overhang insulation and coil windings, wherein, the stator core packet
Include ring-shaped yoke portion and several first teeth portion and the second teeth portion stretched out outward from ring-shaped yoke portion, first teeth portion and the second tooth
Portion replaces circumferential array, and first teeth portion includes public root portion and stretched out outward from the public root portion several convex
Tooth forms the first line embedding groove between two adjacent double wedges, and it is embedding that second is formed between first teeth portion and the second teeth portion
Wire casing；The overhang insulation include annular insulation yoke portion and several first insulation teeth portion for being stretched out outward from annular insulation yoke portion and
Second insulation teeth portion, the first insulation teeth portion and the second insulation teeth portion alternating circumferential array, the first insulation teeth portion include
Public insulation root portion and several insulation double wedges stretched out outward from public insulation root portion, the outer ledge of the insulation double wedge
It is equipped with boss；In the end face in the ring-shaped yoke portion, described first insulate teeth portion in first tooth in the annular insulation yoke portion
The end face in portion, the second insulation teeth portion is in the end face of second teeth portion, and the boss includes first boss, and described first is convex
Platform side is extended with second boss along insulation double wedge toward public insulation root portion direction, the coil windings across the second teeth portion simultaneously
It is placed in two the first adjacent line embedding grooves so that first boss and second boss squeeze coil windings inside.
The surface of second insulation teeth portion described above is a plane.
The outer edge of second insulation teeth portion described above is equipped with third boss.
The shape of third boss described above is up-small and down-big isosceles trapezoid.
Overhang insulation described above and the stator core are integrated injection moldings
The outside of second boss described above is set toward axial direction there are one groove.
Baffle is equipped between public insulation root portion and insulation double wedge described above.
Baffle described above is arc-shaped.
Insulation double wedge described above includes the curved tooth of two insulation and an insulation straight-tooth, the first boss and second boss
It is arranged on the curved tooth of insulation.
The insulate area of curved tooth of first boss and second boss described above covering is the half of curved tooth surface area of insulating.
The outer ledge of insulation straight-tooth described above is equipped with the 4th boss.
Stator core described above includes teeth portion outer end edges, the distance between the teeth portion outer end edges and the boss
L is at least 0.5mm.
A kind of external rotor electric machine, including injection moulded stator and rotor assembly, rotor assembly is sleeved on the outside of motor stator, described
Injection moulded stator be a kind of injection moulded stator described above.
The utility model compared with prior art, has the following effects that：
1) the insulation double wedge of the overhang insulation of injection moulded stator is equipped with first boss, and first boss side is along double wedge toward public
Root portion direction is extended with second boss, by increasing second boss so that when increasing outer groove coiling, enameled wire inwardly squeezes
Pressure, it is less to add so as to reduce enameled wire line outlet groove and by not needing to be inserted into slot wedge in line embedding groove notch after increasing second boss
Work process improves production efficiency.
2) surface of the second insulation teeth portion is a plane, by cancelling the boss in the second teeth portion, is increased on double wedge
Second boss, so that when increasing outer groove coiling, enameled wire inwardly squeezes, and exposes wire casing so as to reduce enameled wire, can be with
Save slot wedge process, line is hindered in reduction, and increase stator slot is made a slip of the tongue glue surface product, reduces glue resistance.
3) outer edge of the second teeth portion is equipped with third boss so that enameled wire outlet can be more reduced during coiling.
4) shape of third boss is up-small and down-big isosceles trapezoid, and coiling is made to be easier into leading groove.
5) overhang insulation and the stator core are integrated injection moldings, easy to process, and production efficiency is high.
6) outside of second boss is set toward axial direction there are one groove, and stator can fin when being to solve determinant injection
The problem of, stator can be pressed with tooling with by the groove after stator fin, so as to increase the area of pressure stator, anti-fastening
Sub- fin.
7) baffle is equipped between the public insulation root portion and insulation double wedge, prevents from mixing between main winding and auxiliary winding
Line.
8) baffle described above is arc-shaped, makes baffle arrangement reasonable, it is not easy to hinder line.
9) insulation double wedge described above includes two curved teeth of insulation and an insulation straight-tooth, the first boss and second convex
Platform is arranged on the curved tooth of insulation, and boss structure arranges reasonable.
10) the insulate area of curved tooth of the first boss and second boss covering is the half of curved tooth surface area of insulating,
Can more reduce enameled wire expose wire casing, increase stator slot make a slip of the tongue glue surface product, reduced glue resistance.
11) the insulation straight-tooth outer ledge is equipped with the 4th boss, can prevent the possibility that enameled wire exposes wire casing completely.
12) stator core includes teeth portion outer end edges, the distance between the teeth portion outer end edges and the boss L
At least 0.5mm, setting apart from reasonable design, will not only cause lug boss position that can not enough cause to press stator area enough again,
To prevent stator fin.
13) a kind of external rotor electric machine, including injection moulded stator and rotor assembly, the injection moulded stator is that injection described above is fixed
Son by using above-mentioned injection moulded stator so as to reduce turn-to-turn broken string quantity when motor is molded, improves motor qualification rate.
Description of the drawings：
Fig. 1 is the vertical view for the plastic packaging stator that background technology provides；
Fig. 2 is the front view of one plastic packaging stator of embodiment；
Fig. 3 is the partial view of A in Fig. 2；
Fig. 4 is the bottom view of one plastic packaging stator of embodiment；
Fig. 5 is the stereogram of one plastic packaging stator of embodiment；
Fig. 6 is one plastic packaging stator wiring diagram of embodiment；
Fig. 7 is the front view of two plastic packaging stator of embodiment；
Fig. 8 is the partial view of B in Fig. 7；
Fig. 9 is the stereogram of two plastic packaging stator of embodiment；
Figure 10 is the explosive view of two plastic packaging stator of embodiment；
Figure 11 is three external rotor electric machine sectional view of embodiment.
Specific embodiment：
The utility model is described in further detail below by specific embodiment and with reference to attached drawing.
Embodiment one：As shown in Fig. 2 to 6, the present embodiment is a kind of novel injection molding stator, exhausted including stator core 1, end
Edge 2 and coil windings 3, wherein, the stator core 1 includes ring-shaped yoke portion 11 and is stretched out outward from ring-shaped yoke portion 11 several
First teeth portion 12 and the second teeth portion 13,12 and second teeth portion 13 of the first teeth portion replace circumferential array, first teeth portion 12
Including public root portion 121 and from several double wedges 122 that the public root portion 121 stretches out outward, described adjacent two convex
The first line embedding groove 14 is formed between tooth 122, the second line embedding groove 15 is formed between 12 and second teeth portion 13 of the first teeth portion；It is described
Overhang insulation 2 includes annular insulation yoke portion 21 and several first insulation teeth portion 22 for being stretched out outward from annular insulation yoke portion 21 and the
Two insulation teeth portion 23, the first insulation teeth portion 22 and second insulation teeth portion 23 replace circumferential array, the first insulation teeth portion
22 include public insulation root portion 221 and several insulation double wedges 222 stretched out outward from public insulation root portion 221, described exhausted
The outer ledge of edge double wedge 222 is equipped with boss 24；The annular insulation yoke portion 21 is described in the end face in the ring-shaped yoke portion 11
For first insulation teeth portion 22 in the end face of first teeth portion 12, described second insulate teeth portion 23 at the end of second teeth portion 13
Face；The boss 24 includes first boss 241, and 241 side of first boss is along insulation double wedge 222 toward public insulation root portion
221 directions are extended with second boss 242, and the coil windings 3 are across the second teeth portion 13 and to be placed on two adjacent first embedding
In wire casing 14 so that first boss 241 and second boss 242 squeeze coil windings inside.
Preferably, the surface of the second insulation teeth portion 23 is a plane.
Preferably, the overhang insulation 2 and the stator core 1 are integrated injection moldings
Preferably, the outside of the second boss 242 is set toward axial direction there are one groove 2421.
Preferably, the insulation double wedge 222 includes two curved teeth 2221 of insulation and an insulation straight-tooth 2222, and described first
Boss 241 and second boss 242 are arranged on the curved tooth 2221 of insulation.
Preferably, the area of the first boss 241 and the curved tooth 2221 of the covering insulation of second boss 242 is the curved tooth of insulation
The half of 2221 surface areas.
Preferably, the stator core includes teeth portion outer end edges 16, the teeth portion outer end edges 16 and the boss 24
The distance between L be at least 0.5mm, the distance of the L is preferably in 0.5mm between 2.0mm.
Preferably, the first boss 241 and second boss 242 are integrated injection moldings.
Preferably, the curved tooth 2221 of the insulation includes the connecting portion 61 being connect with public insulation root portion 221, from institute
The bending section 62 that connecting portion 61 extends outwardly and is bent is stated, is extended from the bending section 62 to stator the first line embedding groove notch direction
Stopper 63, the bending tooth is similar D-shaped, and the first boss 241 is located at stopper 63, and the second boss 242 is positioned at curved
Pars convoluta 62.
Embodiment two：As shown in Fig. 7 to 10, the present embodiment is another novel injection molding stator, including stator core 1, end
Portion's insulation 2 and coil windings 3, wherein, the stator core 1 includes ring-shaped yoke portion 11 and is stretched out outward from ring-shaped yoke portion 11
Several first teeth portion, 12 and second teeth portion 13,12 and second teeth portion 13 of the first teeth portion replace circumferential array, first tooth
Portion 12 includes public root portion 121 and several double wedges 122 for being stretched out outward from the public root portion 121, and described adjacent two
The first line embedding groove 14 is formed between a double wedge 122, the second line embedding groove 15 is formed between 12 and second teeth portion 13 of the first teeth portion；
The overhang insulation 2 includes annular insulation yoke portion 21 and several first insulation teeth portion 22 stretched out outward from annular insulation yoke portion 21
With the second insulation teeth portion 23, the first insulation teeth portion 22 and second insulation teeth portion 23 replaces circumferential array, first insulation
Teeth portion 22 includes public insulation root portion 221 and several insulation double wedges 222 stretched out outward from public insulation root portion 221, institute
The outer ledge for stating insulation double wedge 222 is equipped with boss 24；The annular insulation yoke portion 21 in the end face in the ring-shaped yoke portion 11,
For the first insulation teeth portion 22 in the end face of first teeth portion 12, described second insulate teeth portion 23 in second teeth portion 13
End face；The boss 24 includes first boss 241, and 241 side of first boss is along insulation double wedge 222 toward public insulation tooth root
221 direction of portion is extended with second boss 242, and the coil windings 3 are across the second teeth portion 13 and are placed on two adjacent first
In line embedding groove 14 so that first boss 241 and second boss 242 squeeze coil windings inside.
Preferably, the outer edge of the second insulation teeth portion 23 is equipped with third boss 231.
Preferably, the shape of the third boss 231 is up-small and down-big isosceles trapezoid.
Preferably, the overhang insulation 2 and the stator core 1 are integrated injection moldings.
Preferably, the outside of the second boss 242 is set toward axial direction there are one groove 2421.
Preferably, it is equipped with baffle 4 between the public insulation root portion 221 and insulation double wedge 222.
Preferably, the baffle 4 is arc-shaped.
Preferably, the insulation double wedge 222 includes two curved teeth 2221 of insulation and an insulation straight-tooth 2222, and described first
Boss 241 and second boss 242 are arranged on the curved tooth 2221 of insulation.
Preferably, the area of the first boss 241 and the curved tooth 2221 of the covering insulation of second boss 242 is the curved tooth of insulation
The half of 2221 surface areas.
Preferably, the outer ledge of the insulation straight-tooth 2222 is equipped with the 4th boss 5.
Preferably, the stator core includes teeth portion outer end edges 16, the teeth portion outer end edges 16 and the boss 24
The distance between L be at least 0.5mm., the distance of the L is preferably between 2.0mm in 0.5mm.
Preferably, the first boss 241 and second boss 242 are integrated injection moldings.
Preferably, the curved tooth 2221 of the insulation includes the connecting portion 61 being connect with public insulation root portion 221, from institute
The bending section 62 that connecting portion 61 extends outwardly and is bent is stated, is extended from the bending section 62 to stator the first line embedding groove notch direction
Stopper 63, the bending tooth is similar D-shaped, and the first boss 241 is located at stopper 63, and the second boss 242 is positioned at curved
Pars convoluta 62.
Embodiment three：As shown in figure 11, present embodiment discloses a kind of external rotor electric machine, including injection moulded stator and rotor set
Part 100, rotor assembly 100 are sleeved on the outside of motor stator, and the injection moulded stator is above-described embodiment one or embodiment two
The injection moulded stator.
Better embodiment of the above example for the present invention, but the implementation of the present invention is not limited to this, and other are any
Without departing from the present invention Spirit Essence with made under principle change, modification, replacement, combine, simplification, be equivalent displacement side
Formula is included within protection scope of the present invention.
Claims (13)
1. a kind of novel injection molding stator, including stator core (1), overhang insulation (2) and coil windings (3), wherein,
Several first teeth portion that the stator core (1) is stretched out outward including ring-shaped yoke portion (11) and from ring-shaped yoke portion (11)
(12) and the second teeth portion (13), first teeth portion (12) and the second teeth portion (13) replace circumferential array, first teeth portion
(12) including public root portion (121) and from several double wedges (122) that the public root portion (121) is stretched out outward, the phase
The first line embedding groove (14), shape between first teeth portion (12) and the second teeth portion (13) are formed between two adjacent double wedges (122)
Into the second line embedding groove (15)；
The overhang insulation (2) including annular insulation yoke portion (21) and from annular insulation yoke portion (21) stretch out outward several first
The teeth portion that insulate (22) and the second insulation teeth portion (23), the first insulation teeth portion (22) and the second insulation teeth portion (23) are alternately circumferential
Arrangement, the first insulation teeth portion (22) are past overhanging including public insulation root portion (221) and from public insulation root portion (221)
Several insulation double wedges (222) gone out, the outer ledge of the insulation double wedge (222) are equipped with boss (24)；
Annular insulation yoke portion (21) is in the end face of the ring-shaped yoke portion (11), and the first insulation teeth portion (22) is described the
The end face of one teeth portion (12), the second insulation teeth portion (23) is in the end face of second teeth portion (13)；
It is characterized in that：The boss (24) includes first boss (241), first boss (241) the side edge insulation double wedge
(222) second boss (242) is extended with toward public insulation root portion (221) direction, the coil windings (3) are across the second teeth portion
(13) it and is placed in two adjacent the first line embedding grooves (14) so that first boss (241) and second boss (242) are squeezed inside
Press coil windings (3).
2. a kind of novel injection molding stator according to claim 1, it is characterised in that：The table of the second insulation teeth portion (23)
Face is a plane.
3. a kind of novel injection molding stator according to claim 1, it is characterised in that：Outside the second insulation teeth portion (23)
Edge is equipped with third boss (231).
4. a kind of novel injection molding stator according to claim 3, it is characterised in that：The shape of the third boss (231)
It is up-small and down-big isosceles trapezoid.
5. a kind of novel injection molding stator according to claim 1, it is characterised in that：The overhang insulation (2) and described fixed
Sub- iron core (1) is integrated injection molding.
6. a kind of novel injection molding stator according to claims 1 or 2 or 3 or 4 or 5, it is characterised in that：The second boss
(242) outside is set toward axial direction there are one groove (2421).
7. a kind of novel injection molding stator according to claim 6, it is characterised in that：The public insulation root portion (221)
Baffle (4) is equipped between insulation double wedge (222).
8. a kind of novel injection molding stator according to claim 7, it is characterised in that：The baffle (4) is arc-shaped.
9. a kind of novel injection molding stator according to claim 6, it is characterised in that：The insulation double wedge (222) is including two
A curved tooth (2221) of insulation and an insulation straight-tooth (2222), the first boss (241) and second boss (242) are arranged on absolutely
On the curved tooth of edge (2221).
10. a kind of novel injection molding stator according to claim 9, it is characterised in that：The first boss (241) and second
The insulate area of curved tooth (2221) of boss (242) covering is the half of curved tooth (2221) surface area of insulating.
11. a kind of novel injection molding stator according to claim 10, it is characterised in that：Outside the insulation straight-tooth (2222)
Lateral edges are equipped with the 4th boss (5).
12. a kind of novel injection molding stator according to claim 6, it is characterised in that：The stator core is included outside teeth portion
End margin (16), the distance between the teeth portion outer end edges (16) and the boss (24) L are at least 0.5mm.
13. a kind of external rotor electric machine, including injection moulded stator and rotor assembly (100), rotor assembly (100) is sleeved on motor stator
Outside, it is characterised in that：The injection moulded stator is a kind of novel injection molding stator described in claim 1 to 12 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416202.XU CN207504651U (en) | 2017-10-28 | 2017-10-28 | A kind of novel injection molding stator and its external rotor electric machine of application |
| PCT/CN2018/074395 WO2019007040A1 (en) | 2017-07-04 | 2018-01-28 | External rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721416202.XU CN207504651U (en) | 2017-10-28 | 2017-10-28 | A kind of novel injection molding stator and its external rotor electric machine of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207504651U true CN207504651U (en) | 2018-06-15 |
Family
ID=62501966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721416202.XU Active CN207504651U (en) | 2017-07-04 | 2017-10-28 | A kind of novel injection molding stator and its external rotor electric machine of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207504651U (en) |
-
2017
- 2017-10-28 CN CN201721416202.XU patent/CN207504651U/en active Active
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