CN207184173U - A kind of motor stator and its external rotor electric machine of application - Google Patents
A kind of motor stator and its external rotor electric machine of application Download PDFInfo
- Publication number
- CN207184173U CN207184173U CN201721143866.3U CN201721143866U CN207184173U CN 207184173 U CN207184173 U CN 207184173U CN 201721143866 U CN201721143866 U CN 201721143866U CN 207184173 U CN207184173 U CN 207184173U
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- glue
- motor stator
- bearing block
- stator
- bearing
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Abstract
The utility model discloses a kind of motor stator and its external rotor electric machine of application,Described motor stator includes field frame assembly and plastic-sealed body,Bearing block is integrated bearing block,The both ends of bearing block are respectively equipped with a bearing chamber,Bearing is housed in bearing chamber,The lateral surface of bearing block is provided with the glue-feeder for injection molding material injection,The mistake glue groove flowed through for injection molding material and the gum outlet for injection molding material outflow,Glue groove one end is crossed to connect with glue-feeder,The other end connects with gum outlet,The bearing block of this spline structure,When being molded plastic packaging material,Injection molding material is merely not only to cross glue from stator slot,Also glue can be entered from glue-feeder,Stream passes through glue groove,And flowed out from gum outlet,Flow to the other end of field frame assembly,Accelerate stator faces crosses glue speed,Pass through so as to reduce injection molding material from stator slot,Reduce impact of the injection molding material to enamel-covered wire in stator slot,Reduce the paint for breaking through coil windings surface or thrust coil windings,Reduce interturn in stator windings,Broken string,Improve motor stator qualification rate.
Description
Technical field：
It the utility model is related to a kind of motor stator and its external rotor electric machine of application.
Background technology：
As depicted in figs. 1 and 2, existing external rotor electric machine includes motor stator and the rotor set being enclosed on outside motor stator
Part 200a, described motor stator include field frame assembly 1a and plastic-sealed body 2a, and field frame assembly 1a includes determining with through hole 110a
Sub- iron core 11a, coil windings 12a, overhang insulation 13a and bearing block 14a, overhang insulation 13a is installed in stator core 11a's
In both ends of the surface, coil windings 12a is wound on overhang insulation 13a, and bearing block 14a is logical from the press-in of stator core 11a both sides respectively
Inside the 110a of hole, bearing block 14a carries bearing chamber, bearing 15a is housed in bearing chamber, bearing 15a supports the two of rotating shaft 16a
End, bearing block 14a and stator core 11a through hole 110a are fitted close, and injection molding material can not be from bearing block 14a and stator core
Flowed through between 11a, line embedding groove is provided with stator core 11a, is embedded with coil windings 12a inside line embedding groove, injection molding material flows through embedding
Wire casing, is integrally formed plastic-sealed body 2a, and the motor stator of this spline structure has the shortcomings that following：Because injection molding material flows through line embedding groove,
Injection molding material can be to coil windings 12a generation impact, easily coil windings 12a thrust or the paint by coil windings 12a surfaces
Break through, cause broken string, turn-to-turn, so as to cause motor unqualified.
The content of the invention：
The purpose of this utility model is a kind of motor stator and its external rotor electric machine of application, can solve existing injection moulded stator
Middle injection molding material is excessive to coil windings impulsive force, easily thrusts coil windings or breaks through the paint on coil windings surface, so as to
The problem of causing broken string, turn-to-turn.
The purpose of this utility model is achieved by following technical proposals：
First purpose of the present utility model is to provide a kind of motor stator, described motor stator include field frame assembly and
Plastic-sealed body, field frame assembly include stator core, coil windings, overhang insulation and bearing block with through hole, overhang insulation peace
In the both ends of the surface of stator core, coil windings are wound on overhang insulation, and bearing block is arranged on inside through hole, described bearing
Seat is integrated bearing block, and the both ends of bearing block are respectively equipped with a bearing chamber, and bearing is housed in bearing chamber, and bearings, which, to be turned
The both ends of axle, the lateral surface of described bearing block are provided with the glue-feeder for injection molding material injection, the mistake glue groove flowed through for injection molding material
And the gum outlet for injection molding material outflow, cross glue groove one end and connected with glue-feeder, the other end connects with gum outlet.
Glue-feeder described above is higher by the end face of stator core.
Gum outlet described above is flushed or exceeded with stator core other end.
Mistake glue groove described above is a straight trough.
Bearing block lateral surface described above is provided with 6 and crosses glue groove, and is distributed on the lateral surface of bearing block.
It is provided with axial limiting boss on bearing block lateral surface described above, the one of axial limiting boss and stator core
Individual end contact.
Circumferential positive stop lug boss is provided with bearing block lateral surface described above, the internal face of the stator core is provided with
The circumferential limited impression being engaged with circumferential positive stop lug boss.
Axial limiting boss described above is an annular boss, and described glue-feeder is arranged on axial limiting boss,
And the radial depth H1 of described glue-feeder was more than the radial depth H2 of glue groove.
The number of circumferential positive stop lug boss described above is 2 and is symmetrical arranged that the number of the circumferential limited impression is 2
It is individual and be symmetrical arranged.
Second purpose of the present utility model is to provide a kind of external rotor electric machine, including motor stator and rotor assembly, turns
Sub-component is enclosed on the outside of motor stator, and described motor stator is a kind of motor stator described above.
The utility model compared with prior art, has the effect that：
1) lateral surface of bearing block is provided with the glue-feeder for injection molding material injection, the mistake glue groove flowed through for injection molding material and confession
The gum outlet of injection molding material outflow, cross glue groove one end and connected with glue-feeder, the other end connects with gum outlet, the bearing of this spline structure
Seat, when being molded plastic packaging material, injection molding material is merely not only to cross glue from stator slot, and glue can be also entered from glue-feeder, and stream passes through glue groove, and
Flowed out from gum outlet, flow to the other end of field frame assembly, accelerate the glue speed excessively of stator faces, so as to reduce injection molding material from calmly
By reducing impact of the injection molding material to enamel-covered wire in stator slot, reducing the paint for breaking through coil windings surface or thrust line in pilot trench
Winding is enclosed, interturn in stator windings, broken string is reduced, improves motor stator qualification rate.
2) glue-feeder is higher by the end face of stator core, and such structure is not easy to be blocked by other parts, convenient injection
Material crosses glue from glue groove is crossed, and accelerates glue speed.
3) gum outlet described in is flushed or exceeded with stator core other end, facilitates injection molding material to flow to stator from gum outlet
Assembly end face, accelerated glue speed.
4) the mistake glue groove described in is a straight trough, and the resistance of such glue groove excessively is small, is advantageous to injection molding material flowing, accelerated
Glue speed.
5) the bearing block lateral surface described in is provided with 6 and crosses glue groove, and is distributed on the lateral surface of bearing block.In bearing block
Under the intensity that can be born, it is more preferable that injection molding material crosses glue effect.
6) end contact of axial limiting boss, axial limiting boss and stator core is provided with bearing block lateral surface,
Facilitate the axially position of bearing block, fixed bearing block, prevent that rushing off normal by plastic packaging material puts.
7) circumferential positive stop lug boss is provided with the bearing block lateral surface, the internal face of the stator core is provided with and week
The circumferential limited impression being engaged to positive stop lug boss, prevents bearing block from being circumferentially rotated relative to stator core.
8) a kind of external rotor electric machine, as a result of motor stator described in the utility model, the stator of motor is reduced
Turn-to-turn, broken string, the qualification rate of motor are improved, and improve the injection moulding speed of injection molding material, so as to improve operating efficiency, drop
The low production cost of motor.
Brief description of the drawings：
Fig. 1 is the explosive view for the field frame assembly that the utility model background technology provides；
Fig. 2 is the external rotor electric machine diagrammatic cross-section that the utility model background technology provides；
Fig. 3 is the stereogram for the bearing block that the utility model embodiment provides；
Fig. 4 is the stereogram for another angle of bearing block that the utility model embodiment provides；
Fig. 5 is the upward view for the bearing block that the utility model embodiment provides；
Fig. 6 is the profile of A-A in Fig. 5；
Fig. 7 is the diagrammatic cross-section for the motor stator that the utility model embodiment provides；
Fig. 8 is the diagrammatic cross-section for the external rotor electric machine that the utility model embodiment provides；
Fig. 9 is the stereogram for the external rotor electric machine that the utility model embodiment provides；
Figure 10 is the profile of B-B in Fig. 9；
Figure 11 is the partial enlarged drawing of C in Figure 10.
Embodiment：
The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.
Embodiment one：
As shown in Fig. 3 to Fig. 7, Figure 11, the present embodiment provides a kind of motor stator, and described motor stator 100 wraps
Field frame assembly 1 and plastic-sealed body 2 are included, field frame assembly 1 includes stator core 11, coil windings 12, overhang insulation with through hole 110
13 and bearing block 14, overhang insulation 13 is arranged in the both ends of the surface 111 of stator core 11, and coil windings 12 are wound on overhang insulation
On 13, bearing block 14 is arranged on the inside of through hole 110, and described bearing block 14 is integrated bearing block, and the both ends of bearing block 14 are divided
Not She You a bearing chamber 140, bearing 15 is housed in bearing chamber 140, bearing 15 supports the both ends of rotating shaft 16, described bearing
The lateral surface of seat 14 is provided with the glue-feeder 144 for injection molding material injection, the mistake glue groove 141 flowed through for injection molding material and for injection molding material
The gum outlet 145 of outflow, cross the one end of glue groove 141 and connected with glue-feeder 144, the other end connects with gum outlet 145.
Specifically, described glue-feeder 144 is higher by the end face 111 of stator core 11.
Specifically, described gum outlet 145 is flushed or exceeded with the other end 111 of stator core 11.
Preferably, described mistake glue groove 141 is a straight trough.
Preferably, the described lateral surface of bearing block 14 is provided with 6 and crosses glue groove 141, and is distributed on the outside of bearing block 14
On face.
Specifically, be provided with axial limiting boss 142 on the described lateral surface of bearing block 14, axial limiting boss 142 with
One end face 111 of stator core 11 contacts.
Specifically, be provided with circumferential positive stop lug boss 143 on the described lateral surface of bearing block 14, the stator core 11 it is interior
Wall 112 is provided with the circumferential limited impression 113 being engaged with circumferential positive stop lug boss 143.
Preferably, described axial limiting boss 142 is an annular boss, and described glue-feeder 144 is arranged on axial limit
On the boss 142 of position, and the radial depth H1 of described glue-feeder 144 was more than the radial depth H2 of glue groove 141.
Preferably, the number of described circumferential positive stop lug boss 143 is 2 and is symmetrical arranged, the circumferential limited impression 113
Number 2 and to be symmetrical arranged.
Embodiment two：
As shown in Figs. 8 to 11, the present embodiment provides a kind of external rotor electric machine, including motor stator 100 and rotor
Component 200, rotor assembly 200 are enclosed on the outside of motor stator 100, and described motor stator 100 is one kind electricity described above
Machine stator.
Above example is better embodiment of the 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, it is included within protection scope of the present invention.
Claims (10)
1. a kind of motor stator, described motor stator (100) includes field frame assembly (1) and plastic-sealed body (2), field frame assembly (1)
Including the stator core (11) with through hole (110), coil windings (12), overhang insulation (13) and bearing block (14), end
(13) are insulated in the both ends of the surface (111) of stator core (11), and coil windings (12) are wound on overhang insulation (13), bearing
Seat (14) is arranged on inside through hole (110), and described bearing block (14) is integrated bearing block, and the both ends of bearing block (14) are distinguished
Provided with a bearing chamber (140), bearing chamber (140) is inner to be equipped with bearing (15), and bearing (15) supports the both ends of rotating shaft (16), its
It is characterised by：The lateral surface of described bearing block (14) is provided with the glue-feeder (144) for injection molding material injection, is flowed through for injection molding material
Mistake glue groove (141) and for injection molding material outflow gum outlet (145), cross glue groove (141) one end connected with glue-feeder (144),
The other end connects with gum outlet (145).
A kind of 2. motor stator according to claim 1, it is characterised in that：Described glue-feeder (144) is higher by stator iron
The end face (111) of core (11).
A kind of 3. motor stator according to claim 2, it is characterised in that：Described gum outlet (145) and stator core
(11) other end (111) flush or exceeded.
A kind of 4. motor stator according to claim 3, it is characterised in that：Described mistake glue groove (141) is a straight trough.
A kind of 5. motor stator according to claim 4, it is characterised in that：Described bearing block (14) lateral surface is provided with
6 are crossed glue groove (141), and are distributed on the lateral surface of bearing block (14).
6. according to a kind of motor stator described in claim 1 to 5 any one claim, it is characterised in that：Described axle
It is provided with axial limiting boss (142) on bearing (14) lateral surface, one of axial limiting boss (142) and stator core (11)
End face (111) contacts.
7. according to a kind of motor stator described in claim 1 to 5 any one claim, it is characterised in that：Described axle
Be provided with circumferential positive stop lug boss (143) on bearing (14) lateral surface, the internal face (112) of the stator core (11) be provided with
The circumferential limited impression (113) that circumferential positive stop lug boss (143) is engaged.
A kind of 8. motor stator according to claim 6, it is characterised in that：Described axial limiting boss (142) is
Annular boss, described glue-feeder (144) are arranged on axial limiting boss (142), and the radial direction of described glue-feeder (144)
Depth H 1 was more than the radial depth H2 of glue groove (141).
A kind of 9. motor stator according to claim 7, it is characterised in that：Of described circumferential positive stop lug boss (143)
Number is 2 and is symmetrical arranged, and the number of the circumferential limited impression (113) for 2 and is symmetrical arranged.
10. a kind of external rotor electric machine, including motor stator (100) and rotor assembly (200), rotor assembly (200) are enclosed on motor
The outside of stator (100), it is characterised in that：Described motor stator (100) is claim 1 to 9 any one claim
A kind of described motor stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143866.3U CN207184173U (en) | 2017-09-07 | 2017-09-07 | A kind of motor stator and its external rotor electric machine of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143866.3U CN207184173U (en) | 2017-09-07 | 2017-09-07 | A kind of motor stator and its external rotor electric machine of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184173U true CN207184173U (en) | 2018-04-03 |
Family
ID=61743123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721143866.3U Active CN207184173U (en) | 2017-09-07 | 2017-09-07 | A kind of motor stator and its external rotor electric machine of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184173U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768051A (en) * | 2018-07-04 | 2018-11-06 | 合肥市通得力电气制造有限公司 | A kind of bearing support structure for external rotor electric machine |
| CN108832734A (en) * | 2018-06-06 | 2018-11-16 | 界首市众鑫科技服务有限公司 | A kind of plastic packaging stator component |
| WO2020020346A1 (en) * | 2018-07-27 | 2020-01-30 | 广东美芝制冷设备有限公司 | Stator, single phase induction motor, compressor, and refrigeration device |
-
2017
- 2017-09-07 CN CN201721143866.3U patent/CN207184173U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832734A (en) * | 2018-06-06 | 2018-11-16 | 界首市众鑫科技服务有限公司 | A kind of plastic packaging stator component |
| CN108768051A (en) * | 2018-07-04 | 2018-11-06 | 合肥市通得力电气制造有限公司 | A kind of bearing support structure for external rotor electric machine |
| WO2020020346A1 (en) * | 2018-07-27 | 2020-01-30 | 广东美芝制冷设备有限公司 | Stator, single phase induction motor, compressor, and refrigeration device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |