CN207320994U - A kind of high stability external rotor electric machine - Google Patents
A kind of high stability external rotor electric machine Download PDFInfo
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- CN207320994U CN207320994U CN201721209153.2U CN201721209153U CN207320994U CN 207320994 U CN207320994 U CN 207320994U CN 201721209153 U CN201721209153 U CN 201721209153U CN 207320994 U CN207320994 U CN 207320994U
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Abstract
The utility model discloses a kind of high stability external rotor electric machine, belong to motor field.A kind of high stability external rotor electric machine of the utility model, including casing, end cap, shaft, stator core, stator winding and magnet steel, the shaft both ends are installed on end cap by bearing respectively, the stator core is set in outside shaft and is fixed on the sleeve of end cap, the stator winding is arranged on stator core, the magnet steel is fixed on casing inner wall, and positioned at the periphery of stator core, the casing is fixedly connected with shaft one end, and the casing is equipped with the rib for spacing magnet steel by the end of proximal cover one end.The main application of the utility model is to provide a kind of high stability external rotor electric machine, and the stability in use of the motor is high, and the electric machine structure is simple, and easy to manufacture, production cost is low.
Description
Technical field
A kind of external rotor electric machine is the utility model is related to, more specifically to a kind of high stability external rotor electric machine.
Background technology
Brushless electric machine is a kind of motor type quickly popularized, and can be divided into inner rotor motor and external rotor electric machine, nothing
Brush motor replaces traditional mechanical commutation using electronic commutation, that is, eliminates brush motor changing for checker electromagnetic field
To brush.Brushless electric machine has better characteristics, can fast dynamic response, meanwhile, delivery noise is small, and work efficiency is high, makes
With long lifespan, therefore it is often used in every field such as model plane, precision instrumentation, household electrical appliance, medical treatment.In brushless electric machine
In, external rotor electric machine is widely used in the equipment such as household ventilation fan, smoke exhaust ventilator, shoe-cleaning machine, good market prospect.It is outer to turn
Sub-motor is a kind of motor that rotor is arranged on to stator exterior, and rotor is connected together with shell with output shaft.
The existing a variety of external rotor electric machines of in the market, such as number of patent application CN201420825606.4, authorized announcement date is
On June 10th, 2015, utility model is entitled：External rotor electric machine.This application is related to a kind of rotor electric machine, including：Rotor set
Cylinder, formed with an accommodating chamber；Stator core, is at least partially housed in rotor sleeve；Transmission shaft, using first axle as shaft simultaneously
At least partially across stator core；Rotor sleeve includes：Sleeve part, around forming accommodating chamber；End cap portions, positioned at sleeve part one end
And it is integrally formed or is fixedly connected with sleeve part；The first through hole that rotor sleeve is passed through for transmission shaft is additionally provided with end cap portions；
External rotor electric machine further includes：Stator coil, is wound on stator core and around transmission shaft；Bracket component, including at least for pacifying
The stator support for filling the stator mount of stator core and being fixedly connected with stator mount；The cable surface of stator coil is by
One insulating layer wraps up；Stator support is equipped with the second through hole, and the one end of transmission shaft away from end cap portions passes through the second through hole；Stator support
It is made of the second insulating materials.The external rotor electric machine good insulating of this application, can be suitable for high pressure field.But this is outer
It is unreliable that the rotor of rotor electric machine is connected with rotor sleeve, after motor long time running, easily occurs between rotor and rotor sleeve
The problems such as axially rocking, influences the use of motor.
The content of the invention
1. utility model technical problems to be solved
Be connected the purpose of the utility model is to overcome existing External rotor electric machine rotor with motor case it is insecure not
Foot, there is provided a kind of high stability external rotor electric machine, the magnetic steel of motor and motor case stable connection are reliable, improve external rotor electric
Machine stability in use, and the electric machine structure simple and compact, it is easy to manufacture.
2. technical solution
To reach above-mentioned purpose, technical solution provided by the utility model is：
A kind of high stability external rotor electric machine of the utility model, including casing, end cap, shaft, stator core, stator around
Group and magnet steel, the shaft both ends are installed on end cap by bearing respectively, and the stator core is set in outside shaft
And be fixed on the sleeve of end cap, the stator winding is arranged on stator core, and the magnet steel is fixed on casing inner wall,
And be fixedly connected positioned at the periphery of stator core, the casing with shaft one end, the casing leans on the end of proximal cover one end
Portion is equipped with the rib for spacing magnet steel.
Further, the stator winding is fixed on stator core by upper skeleton and lower skeleton.
Further, the stator winding is enameled wire.
Further, it is additionally provided with bushing between the bottom of shell and the bearing of close casing side.
Further, crimp ring and shaft block ring, the crimp ring and axis gear are also arranged with the shaft
Circle is pressed on two end faces of the bearing away from casing one end respectively.
3. beneficial effect
Using technical solution provided by the utility model, compared with existing known technology, have the advantages that：
(1) a kind of high stability external rotor electric machine of the utility model, the stator core of the external rotor electric machine are fixed on end
On the sleeve of lid, connection is reliable, in addition, the casing of the external rotor electric machine is equipped with by the end of proximal cover one end is used for spacing magnet steel
Rib, the rib cause magnet steel fix it is relatively reliable, improve external rotor electric machine stability in use.
(2) a kind of high stability external rotor electric machine of the utility model, the stator winding in the external rotor electric machine is enamel-cover
Line, various aspects of performance is more excellent, stronger to the adaptability of external environment, is more conducive to the rotation of external rotor electric machine.
(3) a kind of high stability external rotor electric machine of the utility model, the motor case bottom is with leaning on proximal cover side
Bushing is additionally provided between bearing, which is pressed on bearing on the sleeve of end cap so that bearing installation is more firm, carries indirectly
High shaft traveling comfort.
(4) a kind of high stability external rotor electric machine of the utility model, the electric machine structure simple and compact, system easy to process
Make, operate steadily, noise it is small.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of high stability external rotor electric machine of the utility model.
Label declaration in schematic diagram：
1st, end cap；2nd, casing；3rd, magnet steel；4th, stator core；5th, stator winding；6th, lower skeleton；7th, upper skeleton；8th, bushing；
9th, shaft；10th, bearing；11st, rib；12nd, crimp ring；13rd, shaft block ring；14th, wiring board；15th, lead-out wire.
Embodiment
To further appreciate that the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
With reference to shown in Fig. 1, a kind of high stability external rotor electric machine of the present embodiment, including it is casing 2, end cap 1, shaft 9, fixed
Sub- iron core 4, stator winding 5 and magnet steel 3, wherein, 9 both ends of shaft are installed on end cap 1 by bearing 10 respectively.Need what is illustrated
It is that above-mentioned stator core 4 is set in the outside of shaft 9 and is fixed on the sleeve of end cap 1, meanwhile, above-mentioned stator winding 5 is set
In on stator core 4.In addition, above-mentioned magnet steel 3 is fixed on 2 inner wall of casing, and positioned at the periphery of stator core 4, it is above-mentioned
Casing 2 is fixedly connected with 9 one end of shaft.Specifically, above-mentioned stator winding 5 is fixed on stator by upper skeleton 7 and lower skeleton 6
On iron core 4,7 one end of upper skeleton be installed on end cap 1 on, the other end be installed on stator core 4 on, lower skeleton 8 one of them
End face is fixed on stator core 4, sets stator winding 5 more convenient using this kind of mode, and which can make stator around
Group 5 is more reliably connected on stator core 4.More specifically, as a preferred embodiment, the stator winding 5 of the present embodiment
For enameled wire, enameled wire has good thermal shock resistance properties, and its mechanical performance, chemical property and electrical property are more excellent,
It is stronger to the adaptability of external environment, it is more conducive to the running of external rotor electric machine.Further, above-mentioned casing 2 leans on proximal cover 1 one
The end at end is equipped with the rib 11 for spacing magnet steel 3.Before the installation of magnet steel 3, the side wall of the rib 11 and casing 2 is located at together
On straight line, after magnet steel 3 installs, rib 11 is subjected to backfin so that rib 11 and the side wall shape of casing 2 are in 90 °
Angle, the rib 11 can leave gap with magnet steel 3, can also be close to magnet steel 3.It is relatively reliable that the rib 11 causes magnet steel 3 to fix, and keeps away
Exempt from magnet steel 3 and the situation such as get loose, slide after motor long time running, improve external rotor electric machine stability in use.
Further, shown in hookup 1, also set between the bearing 10 of above-mentioned 2 bottom of casing and close 2 side of casing
There is bushing 8, which is resisted against on the end face of bearing 10, and the other end is resisted against on the inner wall of casing 2, at the same time, on
The shaft shoulder for limiting the axial movement of bearing 10 is additionally provided with the sleeve for the end cap 1 stated, above-mentioned bushing 8 is made jointly with the shaft shoulder
With bearing 10 being reliably pressed on the sleeve of end cap 1 so that the installation of bearing 10 is more firm, improves shaft 9 indirectly
Traveling comfort.In addition, being also arranged with crimp ring 12 and shaft block ring 13 in above-mentioned shaft 9, the crimp ring 12 and axis are used
Baffle ring 13 is pressed on two end faces of the bearing 10 away from 2 one end of casing respectively, and the crimp ring 12 is also so that corresponding bearing
10 installations are more firm, further consolidated shaft 9, meanwhile, shaft block ring 13 not only acts as the effect for fixing bearing 10, and
Countershaft 9 plays firm effect, reduces the vibration amplitude of shaft 9, reduces noise.
A kind of high stability external rotor electric machine of the utility model, the magnet steel installation of the motor is reliable, improves outer rotor
The stability in use of motor, and the electric machine structure simple and compact, easy to manufacture, production cost is low, operates steadily, noise
It is small.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, attached drawing
Shown in be also the utility model one of embodiment, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, without creatively designing
The frame mode similar to the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of high stability external rotor electric machine, including casing (2), end cap (1), shaft (9), stator core (4), stator winding
(5) it is installed on respectively by bearing (10) on end cap (1) with magnet steel (3), the shaft (9) both ends, it is characterised in that：It is described
Stator core (4) be set in that shaft (9) is exterior and be fixed on the sleeve of end cap (1), and the stator winding (5) is arranged on fixed
On sub- iron core (4), the magnet steel (3) is fixed on casing (2) inner wall, and positioned at the periphery of stator core (4), the machine
Shell (2) is fixedly connected with shaft (9) one end, and the casing (2) is equipped with by the end of proximal cover (1) one end is used for spacing magnet steel
(3) rib (11).
A kind of 2. high stability external rotor electric machine according to claim 1, it is characterised in that：The stator winding (5)
It is fixed on by upper skeleton (7) and lower skeleton (6) on stator core (4).
A kind of 3. high stability external rotor electric machine according to claim 2, it is characterised in that：The stator winding (5)
For enameled wire.
A kind of 4. high stability external rotor electric machine according to claim 3, it is characterised in that：Described casing (2) bottom
With being additionally provided with bushing (8) between the bearing (10) of casing (2) side.
A kind of 5. high stability external rotor electric machine according to claim 4, it is characterised in that：In the shaft (9) also
Crimp ring (12) and shaft block ring (13) are arranged with, the crimp ring (12) and shaft block ring (13) are pressed on away from machine respectively
On two end faces of the bearing (10) of shell (2) one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209153.2U CN207320994U (en) | 2017-09-20 | 2017-09-20 | A kind of high stability external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209153.2U CN207320994U (en) | 2017-09-20 | 2017-09-20 | A kind of high stability external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207320994U true CN207320994U (en) | 2018-05-04 |
Family
ID=62383215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721209153.2U Active CN207320994U (en) | 2017-09-20 | 2017-09-20 | A kind of high stability external rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207320994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246014A1 (en) * | 2022-06-23 | 2023-12-28 | 杭州宇树科技有限公司 | Motor outer rotor structure, rotary power unit, and quadruped robot |
-
2017
- 2017-09-20 CN CN201721209153.2U patent/CN207320994U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023246014A1 (en) * | 2022-06-23 | 2023-12-28 | 杭州宇树科技有限公司 | Motor outer rotor structure, rotary power unit, and quadruped robot |
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