CN206977213U - A kind of external rotor electric machine - Google Patents
A kind of external rotor electric machine Download PDFInfo
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- CN206977213U CN206977213U CN201720800746.XU CN201720800746U CN206977213U CN 206977213 U CN206977213 U CN 206977213U CN 201720800746 U CN201720800746 U CN 201720800746U CN 206977213 U CN206977213 U CN 206977213U
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- bearing
- bearing block
- overhang insulation
- stator core
- electric machine
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Abstract
The utility model discloses a kind of external rotor electric machine,Including stator module,Outer rotor component,Rotating shaft,Bearing block and bearing,Outer rotor component connects with rotating shaft installation,Outer rotor component is enclosed on outside stator module,Rotating shaft support is mounted on bearings,The stator module includes stator core,Overhang insulation and coil windings,Overhang insulation is arranged in the both ends of the surface of stator core,Coil windings are wound on overhang insulation,Through hole is offered among stator core,One step is set on the inner side of overhang insulation at least at one end,Step is located at the side of through hole,Bearing block is arranged on step,Bearing is arranged on bearing block,Insulated end portions have certain effect of heat insulation,Bearing block is arranged on overhang insulation,When motor operation,The heat transfer of stator core reduces to bearing block,Bearing Temperature can be prevented,Extend bearing life,Reduce running noise of motor.
Description
Technical field：
It the utility model is related to a kind of external rotor electric machine.
Background technology：
Existing external rotor electric machine includes stator module, outer rotor component, rotating shaft, bearing block and bearing, outer rotor
Component is connected with rotating shaft installation, and outer rotor component is enclosed on outside stator module, and rotating shaft support is mounted on bearings, described fixed
Sub-component includes stator core, overhang insulation and coil windings, and overhang insulation is arranged in the both ends of the surface of stator core, coil around
Group is wound on overhang insulation, and through hole, the nested through hole being arranged among stator core of bearing block are offered among stator core
Both ends inside, when motor operation, coil windings heating, heat is from stator core quickly to bearing block transmission, then pass to axle
Hold, make Bearing Temperature, noise can be produced when causing bearing life short with motor operating.
The content of the invention：
The purpose of this utility model is to provide a kind of external rotor electric machine, solves coil windings heating in the prior art, heat
From stator core quickly to bearing block transmission, then pass on bearing, make Bearing Temperature, when bearing life is short and motor operates
The technical problem of noise can be produced.
The purpose of this utility model is achieved by following technical proposals.
A kind of external rotor electric machine, including stator module, outer rotor component, rotating shaft, bearing block and bearing, outer rotor component with
Rotating shaft installation is connected, and outer rotor component is enclosed on outside stator module, and rotating shaft support is mounted on bearings, the stator module
Including stator core, overhang insulation and coil windings, overhang insulation is arranged in the both ends of the surface of stator core, coil windings coiling
On overhang insulation, through hole is offered among stator core, a step is set on the inner side of overhang insulation at least at one end,
Step is located at the side of through hole, and one of bearing block is arranged on step, and bearing is arranged on bearing block.
One step is all set on the inner side of the overhang insulation at both ends described above, and two steps are located at the two of through hole respectively
Side, two bearings seat are separately mounted on the step at both ends, and bearing is arranged on bearing block.
Another bearing block described above is nested to be arranged on inside through hole.
Step described above is step cutting pattern.
Bearing block described above is made up of metal material.
It is described above it also include a plastic-sealed body, the plastic-sealed body is by stator core, overhang insulation, coil windings, bearing
Seat links together.
It is described above also to include a base, a projection is protruded among the base, a bearing chamber, bearing are formed on projection bottom
On bearing chamber.
The utility model compared with prior art, has the effect that：
1) the utility model includes stator module, outer rotor component, rotating shaft, bearing block and bearing, and outer rotor component is with turning
Axle installation is connected, and outer rotor component is enclosed on outside stator module, and rotating shaft support is mounted on bearings, the stator module bag
Stator core, overhang insulation and coil windings are included, overhang insulation is arranged in the both ends of the surface of stator core, and coil windings are wound on
On overhang insulation, through hole is offered among stator core, a step, platform are set on the inner side of overhang insulation at least at one end
Component level is arranged on step in the side of through hole, bearing block, and bearing is arranged on bearing block, and overhang insulation has necessarily heat-insulated
Effect, bearing block is arranged on overhang insulation, and when motor operation, the heat transfer of stator core to bearing block reduction can be with
Bearing Temperature is prevented, extends bearing life, reduces running noise of motor.
2) step is all set on the inner side of the overhang insulation at both ends, two steps are located at the both sides of through hole respectively, and two
Bearing block is separately mounted on the step at both ends, and bearing is arranged on bearing block, in addition to it can prevent Bearing Temperature, is led to
The concentricity of two bearing block upper bearing (metal)s can also be ensured by crossing the positioning of two steps, simplify technique.
3) step is set on the inner side of overhang insulation, step is located at the side of through hole, and bearing block is arranged on step,
To there is a preliminary fixation to bearing block, when injection, bearing block will not shift, and simplify technique, while can
To improve the positioning precision of bearing.
Brief description of the drawings：
Fig. 1 is the stereogram of embodiment one；
Fig. 2 is the front view of embodiment one；
Fig. 3 is the sectional view of A-A in Fig. 2；
Fig. 4 is the overhang insulation structural representation of embodiment one；
Fig. 5 is the stereogram of embodiment two；
Fig. 6 is the front view of embodiment two；
Fig. 7 is the sectional view of B-B in Fig. 6.
Embodiment：
The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.
Embodiment one：As shown in Figures 1 to 4, the present embodiment is a kind of external rotor electric machine, including stator module 1, outer rotor
Component 2, rotating shaft 3, bearing block 4 and bearing 5, outer rotor component 2 connect with the installation of rotating shaft 3, and outer rotor component 2 is enclosed on stator
The outside of component 1, the support of rotating shaft 3 are arranged on bearing 5, and the stator module 1 includes stator core 11, overhang insulation 12 and coil
Winding 13, overhang insulation 12 are arranged in the both ends of the surface of stator core 11, and coil windings 13 are wound on overhang insulation 12, stator
Through hole 14 is offered among iron core 11, a step 121, step 121 are set on the inner side of overhang insulation 12 at least at one end
Positioned at the side of through hole 14, one of bearing block 4 is arranged on step 121, and bearing 3 is arranged on bearing block 4.
Another bearing block 4 is nested to be arranged on the inside of through hole 14.
The step 121 is step cutting pattern.
The bearing block 4 is made up of metal material.
Above-mentioned external rotor electric machine also includes a plastic-sealed body 6, and the plastic-sealed body 6 is by stator core 11, overhang insulation 12, line
Circle winding 13, bearing block 4 link together.
Embodiment two：As shown in Figures 5 to 7, the present embodiment is a kind of external rotor electric machine, including stator module 1, outer rotor
Component 2, rotating shaft 3, bearing block 4 and bearing 5, outer rotor component 2 connect with the installation of rotating shaft 3, and outer rotor component 2 is enclosed on stator
The outside of component 1, the support of rotating shaft 3 are arranged on bearing 5, and the stator module 1 includes stator core 11, overhang insulation 12 and coil
Winding 13, overhang insulation 12 are arranged in the both ends of the surface of stator core 11, and coil windings 13 are wound on overhang insulation 12, stator
Through hole 14 is offered among iron core 11, a step 121, step 121 are set on the inner side of overhang insulation 12 at least at one end
Positioned at the side of through hole 14, bearing block 4 is arranged on step 121, and bearing 3 is arranged on bearing block 4.
The step 121 is step cutting pattern.
The bearing block 4 is made up of metal material.
Above-mentioned external rotor electric machine also includes a base 7, protrudes a projection 71, the bottom shape of projection 71 among the base 7
Into a bearing chamber 72, bearing 5 is arranged on bearing chamber 72.
Embodiment three：The present embodiment is according to one of embodiment one improvement, the inner side of the overhang insulation 12 at the both ends
On a step 121 is all set, two steps 121 are located at the both sides of through hole 14 respectively, and two bearing blocks 4 are separately mounted to both ends
Step 121 on, bearing 3 is arranged on bearing block 4, and plastic-sealed body 6 is by stator core 11, overhang insulation 12, coil windings 13, axle
Bearing 4 links together.
Inventive principle：Through hole 14 is offered among stator core 11, is set on the inner side of overhang insulation 12 at least at one end
A step 121 is put, step 121 is located at the side of through hole 14, and bearing block 4 is arranged on step 121, and bearing 3 is arranged on bearing
On seat 4, overhang insulation 12 has certain effect of heat insulation, and bearing block 4 is arranged on overhang insulation 12, fixed when motor operation
The heat transfer of sub- iron core 11 reduces to bearing block 4, can prevent that the temperature of bearing 5 is too high, extends the life-span of bearing 5, reduces motor
Running noise.
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 (7)
1. a kind of external rotor electric machine, including stator module (1), outer rotor component (2), rotating shaft (3), bearing block (4) and bearing
(5), outer rotor component (2) is connected with rotating shaft (3) installation, and outer rotor component (2) is enclosed on outside stator module (1), rotating shaft
(3) support is arranged on bearing (5), and the stator module (1) includes stator core (11), overhang insulation (12) and coil windings
(13), overhang insulation (12) is arranged in the both ends of the surface of stator core (11), and coil windings (13) are wound on overhang insulation (12)
On, offer through hole (14) among stator core (11), it is characterised in that：On the inner side of overhang insulation (12) at least at one end
One step (121) is set, and step (121) is located at the side of through hole (14), and one of bearing block (4) is arranged on step
(121) on, bearing (5) is arranged on bearing block (4).
A kind of 2. external rotor electric machine according to claim 1, it is characterised in that：On the inner side of the overhang insulation (12) at both ends
One step (121) is all set, and two steps (121) are located at the both sides of through hole (14) respectively, and two bearings seat (4) is separately mounted to
On the step (121) at both ends, bearing (5) is arranged on bearing block (4).
A kind of 3. external rotor electric machine according to claim 1, it is characterised in that：Another bearing block (4) nesting is arranged on
Inside through hole (14).
4. according to a kind of external rotor electric machine described in claim 1 or 2 or 3, it is characterised in that：The step (121) is circular
Step.
A kind of 5. external rotor electric machine according to claim 4, it is characterised in that：The bearing block (4) is by metal material
It is made.
A kind of 6. external rotor electric machine according to claim 5, it is characterised in that：It also includes a plastic-sealed body (6), the modeling
Envelope body (6) links together stator core (11), overhang insulation (12), coil windings (13), bearing block (4).
A kind of 7. external rotor electric machine according to claim 1, it is characterised in that：Also include a base (7), the base
(7) bearing chamber (72) is formed on one projection of protrusion (71) among, projection (71) bottom, and bearing (5) is arranged on bearing chamber (72).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720800746.XU CN206977213U (en) | 2017-07-04 | 2017-07-04 | A kind of external rotor electric machine |
| 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 |
|---|---|---|---|
| CN201720800746.XU CN206977213U (en) | 2017-07-04 | 2017-07-04 | A kind of external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206977213U true CN206977213U (en) | 2018-02-06 |
Family
ID=61407386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720800746.XU Active CN206977213U (en) | 2017-07-04 | 2017-07-04 | A kind of external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206977213U (en) |
Cited By (1)
| 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 |
-
2017
- 2017-07-04 CN CN201720800746.XU patent/CN206977213U/en active Active
Cited By (1)
| 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 |
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