CN105449935B - External rotor electric machine - Google Patents
External rotor electric machine Download PDFInfo
- Publication number
- CN105449935B CN105449935B CN201510996780.4A CN201510996780A CN105449935B CN 105449935 B CN105449935 B CN 105449935B CN 201510996780 A CN201510996780 A CN 201510996780A CN 105449935 B CN105449935 B CN 105449935B
- Authority
- CN
- China
- Prior art keywords
- electric machine
- external rotor
- rotor electric
- stator
- stator axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of external rotor electric machine, the external rotor electric machine includes stator axis and the matched stator of the stator axis, the mover located at the stator peripheral, wherein described stator has armature, uniform winding has armature winding on the armature, the inwall of the mover is provided with permanent magnet paster, the external rotor electric machine also includes encoder, and the encoder includes the lenticular lenses coordinated with the stator axis.Outer rotor motor structure provided by the invention is simple, small volume, cost are relatively low.
Description
Technical field
The present invention relates to a kind of external rotor electric machine.
Background technology
At present, manipulator uses servomotor more, and the servomotor includes stator, the rotor being arranged in stator composition,
When this kind of motor driven mechanical arm rotates, motor output end needs connection gear reducing gear to realize, so as to need motor to do more
More work(, the waste of resource is so not only caused, and the electric machine structure is complicated, volume is larger, and cost is higher.
The content of the invention
The technical problem to be solved in the present invention has been to provide a kind of external rotor electric machine, and the outer rotor motor structure is simple, body
Product is smaller, cost is relatively low.
The present invention is to solve technical scheme used by above-mentioned technical problem：
A kind of external rotor electric machine, the external rotor electric machine include stator axis, the stator matched with the stator axis, are located at
The mover of the stator peripheral, wherein the stator has an armature, uniform winding has armature winding, the mover on the armature
Inwall be provided with permanent magnet paster, the external rotor electric machine also includes encoder, and the encoder includes and the stator axis
The lenticular lenses of cooperation.
The invention has the advantages that the lenticular lenses of encoder are in stator axis so that outer rotor motor structure letter
List, small volume, cost are relatively low.
Preferably, the external rotor electric machine is used for manipulator, and the manipulator includes mechanical arm, and the mechanical arm is described
The mover of external rotor electric machine, when the external rotor electric machine has pulse input, the mechanical arm rotates around the stator axis, and institute
The location parameter for stating mechanical arm passes through the encoder feedback.
Preferably, the manipulator includes frame, and the stator axis is fixed at the frame.
Preferably, the encoder feeds back the location parameter of the mechanical arm by Ethernet.
Preferably, the stator is coupled by connecting key and the stator axis.
Preferably, the both ends of the stator are provided with upper end cover and bottom end cover, are set between the upper end cover and the stator axis
There is upper bearing (metal), lower bearing is provided between the bottom end cover and the stator axis.
Preferably, the upper end cover has the first locating ring, and the bottom end cover has the second locating ring, and the upper bearing (metal) is set
In the first locating ring, the lower bearing is located at the second locating ring, the inner ring of the upper bearing (metal) and the lower bearing with it is described fixed
Sub- axle interference fit.
Preferably, the permanent magnet paster is pasted on the inwall of the mover.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the partial sectional view of external rotor electric machine provided in an embodiment of the present invention.
Fig. 2 is the top view of external rotor electric machine provided in an embodiment of the present invention.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
As depicted in figs. 1 and 2, a kind of external rotor electric machine, including stator axis 10, with the matched stator 12 of stator axis 10,
Mover 14 located at the periphery of stator 12, wherein stator 12 have an armature, and uniform winding has armature winding 16 on armature, mover 14
Inwall is provided with permanent magnet paster 18, and external rotor electric machine also includes encoder 20, and encoder 20 includes what is coordinated with stator axis 10
Lenticular lenses.
The external rotor electric machine that this preferred embodiment provides, because the lenticular lenses of encoder 20 are in stator axis 10 so that
The outer rotor motor structure is simple, small volume, cost are relatively low.
Stator 12 is coupled by connecting key 22 and stator axis 10.Specifically, stator axis 10 is provided with the first keyway 24, stator
12 are provided with the second keyway 26, connecting key 22 are assemblied in the first keyway 24 of stator axis 10 first, and stator axis 10 is connected
It is interference fitted with connecting key 22 along the second keyway 26 of stator 12.In addition, being additionally provided with first shaft shoulder 27 in stator axis 10, it is fixed to make
Son 12 is fitted close with first shaft shoulder 27.
In addition, the external rotor electric machine that this preferred embodiment provides can be used for manipulator, manipulator includes mechanical arm, mechanical arm
For the mover 14 of external rotor electric machine, so, when external rotor electric machine has pulse input, mechanical arm rotates around stator axis 10, and machine
The location parameter of tool arm is fed back by encoder 20.It is arranged such so that mover 14 of the mechanical arm as external rotor electric machine so that
Electric machine structure is compacter, small volume, and cost is lower, so as to further such that the volume of manipulator is also smaller, cost compared with
It is low.
Further, manipulator also includes the operating mechanism (not shown) for being connected to mechanical arm, and operating mechanism is manipulator
End effector, Ke Yiwei：Clamping jaw, for automatic crawl, plug-in unit etc.；Or be suction nozzle, cut for paster 18, wafer；
Or be bonding machine, for scolding tin etc..In this preferred embodiment, the high transmission accuracy of external rotor electric machine direct drive mechanical arm, sound
Fast, small volume is answered, and cost is relatively low.
In this preferred embodiment, manipulator also includes frame 21, and stator axis 10 is fixed at frame 21.Specifically, stator
Axle 10 is fixedly connected on frame 21 by key 23, and the end of frame 21 is additionally provided with pad 25 and nut 29, so as to prevent stator axis 10
Axial float.
In addition, in this preferred embodiment, encoder 20 feeds back the location parameter of mechanical arm by Ethernet.So that control is more
Add conveniently, accurately.
In this preferred embodiment, permanent magnet paster 18 is pasted on the inwall of mover 14.Certainly, other setting sides can also be used
Method.Specifically, namely it is pasted on the inwall of mechanical arm.
The both ends of stator 12 are provided with upper end cover 28 and bottom end cover 30, and upper end cover 28 and bottom end cover 30 are sheathed on stator axis 10
On, upper end cover 28 and bottom end cover 30 coordinate with the gap of stator axis 10.In addition, upper bearing (metal) is provided between upper end cover 28 and stator axis 10
32, lower bearing 34 is provided between bottom end cover 30 and stator axis 10.So so that the rotation of mover 14 is more flexibly light.Specifically
, second shaft shoulder 36 and the 3rd shaft shoulder 38 are additionally provided with stator axis 10, upper bearing (metal) 32 is fitted close with second shaft shoulder 36, lower bearing
34 are fitted close with the 3rd shaft shoulder 38.
Further, upper end cover 28 has the first locating ring 40, and bottom end cover 30 has the second locating ring 42, and upper bearing (metal) 32 is set
In the first locating ring 40, lower bearing 34 is located at the second locating ring 42.In this way, when installing upper bearing (metal) 32 and lower bearing 34, hold very much
Easily positioning, facilitate the installation of upper bearing (metal) 32 and lower bearing 34, improve operating efficiency.In addition, upper bearing (metal) 32 and lower bearing 34 is interior
Circle is interference fitted with stator axis 10, and the outer ring of upper bearing (metal) 32 is interference fitted with upper end cover 28, and the outer ring of lower bearing 34 is with
End cap 30 is interference fitted.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of external rotor electric machine, the external rotor electric machine includes stator axis and the matched stator of the stator axis, located at institute
State the mover of stator peripheral, it is characterised in that：The stator has an armature, and uniform winding has armature winding on the armature, institute
The inwall for stating mover is provided with permanent magnet paster, and the external rotor electric machine also includes encoder, the encoder include with it is described
The lenticular lenses that stator axis coordinates, the external rotor electric machine are used for manipulator, and the manipulator includes mechanical arm, and the mechanical arm is
The mover of the external rotor electric machine, when the external rotor electric machine has pulse input, the mechanical arm rotates around the stator axis,
And the location parameter of the mechanical arm passes through the encoder feedback.
2. external rotor electric machine according to claim 1, it is characterised in that：The manipulator includes frame, the stator axis
It is fixed at the frame.
3. external rotor electric machine according to claim 1, it is characterised in that：The encoder feeds back the machine by Ethernet
The location parameter of tool arm.
4. external rotor electric machine according to claim 1, it is characterised in that：The stator passes through connecting key and the stator axis
Mating.
5. external rotor electric machine according to claim 1, it is characterised in that：The both ends of the stator are provided with upper end cover and lower end
Lid, is provided with upper bearing (metal), lower bearing is provided between the bottom end cover and the stator axis between the upper end cover and the stator axis.
6. external rotor electric machine according to claim 5, it is characterised in that：The upper end cover has the first locating ring, described
Bottom end cover has the second locating ring, and the upper bearing (metal) is located at the first locating ring, and the lower bearing is located at the second locating ring, it is described on
The inner ring of bearing and the lower bearing is interference fitted with the stator axis.
7. external rotor electric machine according to claim 1, it is characterised in that：The permanent magnet paster is pasted on the mover
Inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996780.4A CN105449935B (en) | 2015-12-28 | 2015-12-28 | External rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996780.4A CN105449935B (en) | 2015-12-28 | 2015-12-28 | External rotor electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105449935A CN105449935A (en) | 2016-03-30 |
| CN105449935B true CN105449935B (en) | 2018-03-20 |
Family
ID=55559831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510996780.4A Active CN105449935B (en) | 2015-12-28 | 2015-12-28 | External rotor electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105449935B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112236649A (en) * | 2019-11-04 | 2021-01-15 | 深圳市大疆创新科技有限公司 | Sensor, movable platform and microwave radar sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324139A (en) * | 2001-07-05 | 2001-11-28 | 上海交通大学 | Directly driven synchronous dragger with Nd-Fe-B permanent magnetic rotor |
| CN201478969U (en) * | 2009-04-30 | 2010-05-19 | 浙江关西电机有限公司 | Integrated hub motor |
| CN203761200U (en) * | 2014-02-17 | 2014-08-06 | 中国电子科技集团公司第二十一研究所 | Permanent magnet synchronous motor assembly used for diving of space mechanical arm joint |
| CN204231115U (en) * | 2014-09-23 | 2015-03-25 | 廊坊科森电器有限公司 | A kind of motor |
| CN104795958A (en) * | 2014-12-18 | 2015-07-22 | 遨博（北京）智能科技有限公司 | Brushless direct-current servo system provided with hollow shaft motor and applying mechanical arm |
| CN205265463U (en) * | 2015-12-28 | 2016-05-25 | 苏州大学 | Outer rotor motor |
-
2015
- 2015-12-28 CN CN201510996780.4A patent/CN105449935B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324139A (en) * | 2001-07-05 | 2001-11-28 | 上海交通大学 | Directly driven synchronous dragger with Nd-Fe-B permanent magnetic rotor |
| CN201478969U (en) * | 2009-04-30 | 2010-05-19 | 浙江关西电机有限公司 | Integrated hub motor |
| CN203761200U (en) * | 2014-02-17 | 2014-08-06 | 中国电子科技集团公司第二十一研究所 | Permanent magnet synchronous motor assembly used for diving of space mechanical arm joint |
| CN204231115U (en) * | 2014-09-23 | 2015-03-25 | 廊坊科森电器有限公司 | A kind of motor |
| CN104795958A (en) * | 2014-12-18 | 2015-07-22 | 遨博（北京）智能科技有限公司 | Brushless direct-current servo system provided with hollow shaft motor and applying mechanical arm |
| CN205265463U (en) * | 2015-12-28 | 2016-05-25 | 苏州大学 | Outer rotor motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105449935A (en) | 2016-03-30 |
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