CN107947480A - A kind of outer rotor brushless motor with radiator - Google Patents
A kind of outer rotor brushless motor with radiator Download PDFInfo
- Publication number
- CN107947480A CN107947480A CN201711227664.1A CN201711227664A CN107947480A CN 107947480 A CN107947480 A CN 107947480A CN 201711227664 A CN201711227664 A CN 201711227664A CN 107947480 A CN107947480 A CN 107947480A
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- China
- Prior art keywords
- rotor
- central shaft
- bearing
- heat pipe
- electric machine
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- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
- H02K9/225—Heat pipes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention proposes a kind of outer rotor brushless motor with radiator, including stator coil, rotor rear cover and rear bearing, and one or more heat pipes, the evaporator section of heat pipe is arranged near stator coil, the inner ring of the condensation segment of heat pipe from rotor rear cover or rear bearing is pierced by, so that the heat that motor is produced in the process of running efficiently sheds from motor internal.The present invention and its heat dissipation problem for efficiently solving closing motor or the outer rotor brushless motor with closing or semiclosed protective cover, make it not only have extraordinary water proof and dust proof performance, but also can long-time stable, reliability service.
Description
Technical field
The present invention relates to a kind of outer rotor brushless motor, more particularly to a kind of with water proof and dust proof characteristic, band heat dissipation dress
The outer rotor brushless motor put.
Background technology
With the related production such as the continuous development of robot technology, particularly unmanned air vehicle technique and industry, robot, unmanned plane
Industry is also higher and higher for the performance requirement of motor.For example in existing unmanned plane product, most of used motor is all
Do not possess water proof and dust proof performance so that current unmanned plane product is subject to very big in application scenarios, performance etc.
Restrict, under the weather conditions such as sand and dust, sleet or under the agricultural plant protection scene such as spray insecticide, the motor of unmanned plane holds very much
Easily break down, so as to have impact on the dynamical system of unmanned plane, cause unmanned plane can not normal use, under serious situation even
It may cause unmanned plane ground out of hand of falling, it is further to damage unmanned plane and its airborne expensive instrument.Therefore in order to
Improve the reliability of robot and unmanned plane and extend its application scenarios, it is necessary to improve the reliability for using motor, make its tool
Standby water proof and dust proof performance.But under normal circumstances, in order to improve motor waterproof anti-dust performance taken it is various by motor internal
Measure with the isolation of extraneous adverse circumstances often seriously causes the deterioration of motor radiating performance so that motor temperature rise it is serious,
So as to cause existing motor " both cannot have both at the same time " in good water proof and dust proof performance and good heat dissipation performance.
The content of the invention
Outer rotor brushless motor is generally designed using Open architecture or the semi-closed structure for having gap at present, is not possessed anti-
The dust-proof ability of water.The destruction of internal corrosion and insulation is easy to cause with the intrusion such as corrosive salt-containing liquid or soda acid, is made
Into hydraulic performance decline and damage.Particle foreign matter is also easy to cause rotor into motor and stator produces friction or stuck, especially iron
Magnetic particle, is easily sucked and can not be discharged by p-m rotor, rapidly result in motor failure.To environmental suitability and product
The occasion that reliability has higher requirements, motor must have enough dustproof and waterproof grades, could meet requirement accordingly.For
Improving the various isolating and protecting measures that the degree of protection of motor is taken, to often lead to motor radiating bad.Therefore there is an urgent need to
Not only there is good water proof and dust proof performance, but also the motor with good heat dissipation performance and the highly reliable work of energy.
The present invention is exactly the heat dissipation problem of the motor for closing motor or with closing or semiclosed protective cover, it is proposed that
A kind of outer rotor brushless motor with radiator so that the motor is under with good water proof and dust proof performance, with good
Good heat dissipation performance, so that motor energy long-time stable, reliability service.
According to an aspect of the invention, there is provided a kind of outer rotor brushless motor with radiator, including stator line
Circle, rotor rear cover and rear bearing, and one or more heat pipes, the evaporator section of heat pipe are arranged near stator coil, heat pipe
The inner ring of condensation segment from rotor rear cover or rear bearing is pierced by.
Preferably, which further includes central shaft, and the condensation segment of heat pipe passes through central shaft, and from rear bearing
Inner ring be pierced by.
Preferably, which further includes fore bearing, rotor protecgulum, rotor outer ring, the outer ring of fore bearing with
Rotor protecgulum is closely connected；Rotor protecgulum is closely connected with rotor outer ring；Stator coil is fixed with central shaft
Connection；Rotor outer ring is closely connected with rotor rear cover；The inner ring of central shaft and rear bearing is closely connected；Rotor rear cover
It is closely connected with the outer ring of rear bearing；So so that fore bearing, rotor protecgulum, rotor outer ring, central shaft, rotor rear cover and
Bearing forms a closed space afterwards, also, the evaporator section of heat pipe is arranged close to stator coil, and the condensation segment of heat pipe passes through center
Axis, the inner ring from rear bearing are pierced by the outside for extending to closed space.
Preferably, which further includes stator support, and central shaft is connected with stator support, stator support
It is connected again with stator coil, the condensation segment of heat pipe is pierced by and extends to through stator support and central shaft, the inner ring from rear bearing
The outside of closed space.Preferably, central shaft is a hollow Step Shaft.
Preferably, which further includes power output shaft, the outer ring of power output shaft and fore bearing or
Rotor protecgulum is closely connected.
Preferably, power output shaft further includes flange arrangement, is fitted close by the flange arrangement and rotor protecgulum
Connection, from technique effect, to close fore bearing.
Preferably, through central shaft and the inner ring of rear bearing, central shaft can use hollow the lead-out wire of stator coil
Structure.
Preferably, the lead-out wire of stator coil passes through the inner ring of stator support, central shaft and rear bearing.
Preferably, rear bearing is closing bearing, can be sealed-bearing or bearing oiling seal structure.
Preferably, which further includes one or more external radiators, and external radiator, which is arranged at, to be closed
The outside in space is closed, the condensation segment of heat pipe is connected with external radiator.
Hereafter by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to the outer rotor with radiator without
Above-mentioned characteristic, technical characteristic, advantage and its implementation of brush motor are further described.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is a kind of stereo decomposing of outer rotor brushless motor with radiator according to an embodiment of the invention
View.
Fig. 2 is that a kind of half assembling of outer rotor brushless motor with radiator according to an embodiment of the invention is vertical
Body diagrammatic cross-section.
Fig. 3 is a kind of profile of outer rotor brushless motor with radiator according to an embodiment of the invention.
Fig. 4 is a kind of outer rotor brushless motor and external heat radiation with radiator according to an embodiment of the invention
The connection diagram of device.
Reference numeral
1 power output shaft
2 fore bearings
3 rotor protecgulums
4 stator coils
5 stator supports
6 rotor outer rings
7 central shafts
8 rotor rear covers
Bearing after 9
10 stator coil lead-out wires
11 external radiators
12 heat pipes
Embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, now control brief description of the drawings is of the invention
Embodiment, in the various figures identical label represent the component that structure is identical or structure is similar but function is identical.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical solution.
To make simplified form, part related to the present invention is only schematically show in each figure, they are not represented
Its practical structures as product.In addition, to readily appreciate simplified form, with identical structure or function in some figures
Component, only symbolically depicts one of those, or has only marked one of those.
Herein, "one" not only represents " only this ", can also represent the situation of " more than one ".Herein
In, " first ", " second " etc. are only used for mutual differentiation, rather than represent their significance level and order etc..
Fig. 1 is a kind of stereo decomposing of outer rotor brushless motor with radiator according to an embodiment of the invention
View.Fig. 2 is that a kind of half assembling of outer rotor brushless motor with radiator according to an embodiment of the invention is three-dimensional
Diagrammatic cross-section.Fig. 3 is a kind of section of outer rotor brushless motor with radiator according to an embodiment of the invention
Figure.Fig. 4 is a kind of outer rotor brushless motor and external radiator with radiator according to an embodiment of the invention
Connection diagram.The embodiment of the present invention is described in detail with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4.
As shown in the figure, according to one embodiment of present invention, a kind of outer rotor brushless motor with radiator, including it is fixed
Subcoil 4, central shaft 7, and rotor protecgulum 3, rotor outer ring 6 and rotor rear cover 8, fore bearing 2 and rear bearing 9, and heat pipe
12.As shown in Figure 1, with reference to Fig. 2 and Fig. 3, stator coil 4, central shaft 7 are grouped together, and form stator component.
Rotor protecgulum 3, rotor outer ring 6 and rotor rear cover 8, combine, and form rotor part.Rotor protecgulum 3 and turn
Sub- outer ring 6 is closely connected, and rotor outer ring 6 is closely connected with rotor rear cover 8 again.Central shaft 7 is also outer with rear bearing 9
Circle is closely connected.The outer ring of fore bearing 2 is closely connected with rotor protecgulum 3, and inner ring and the central shaft 7 of fore bearing 2 connect
Connect.
In this way, rotor protecgulum 3, rotor outer ring 6 and rear cover 8, combine, rotor part is formed；Stator coil 4, in
Mandrel 7 is grouped together, and forms stator component；Stator component is included inside by rotor part, and passes through fore bearing 2 and rear bearing
9, form the housing or closed space of a closing.In this way, in the case that if the power of motor is larger, or rotating speed is higher,
Caused amount of heat is easily trapped in this closed space in the process of running, uses unique structure design for this,
Heat pipe 12 is configured with for motor, its evaporator section is arranged close to stator coil 4, after the condensation segment of heat pipe 12 can be directly through rotor
The inner ring of lid 8 or rear bearing 9, extends to the outside of above-mentioned closed space.Preferably, the condensation segment of heat pipe 12 initially passes through center
Axis 7, is then pierced by from the inner ring of rear bearing 9, extends to the outside of closed space again.In motor operation course, stator coil 4
The evaporator section heating of caused heat meeting opposite heat tube, by the thermal cycle of heat pipe 12, heat reaches heat by the evaporator section of heat pipe 12
The condensation segment of pipe 12.And the condensation segment of heat pipe 12 is arranged on the outside of above-mentioned closed space, so that by institute in motor operation course
The heat of generation is transferred to the outside of closed space, reaches the function of motor radiating., can also basis in specific implementation process
The performance parameter of motor, physical size etc., one or more heat pipes are configured for motor.Set as shown in Figure 1, being shown in figure
It is equipped with the outer rotor brushless motor of two heat pipes.The evaporator section of the two heat pipes be arranged respectively to it is semi-circular, and form one
Approximate round shape, it is dimensioned slightly smaller than the internal diameter of stator coil 4, so that what the evaporator section of the two heat pipes was formed
Round shape can be arranged close to stator coil 4, to reach more preferable heat dissipation effect.Similarly, can also be by one or more
The evaporator section of heat pipe is arranged to repeatedly the sector structure of multilayer, to meet corresponding heat dissipation performance.
Preferably, rear bearing 9 closes bearing, such as the structure sealed using sealed-bearing or bearing oiling, after motor
End seal is closed.Preferably, motor further includes power output shaft 1, it is fitted close with the outer ring of fore bearing 2 or rotor protecgulum 3 connects
Connect, motor outwards exports power by power output shaft 1.Preferably, power output shaft 1 is fixed on outside the fore bearing 2 of protecgulum, will
Fore bearing 2 is completely enclosed.It is highly preferred that power output shaft 1 further includes flange arrangement or similar flange arrangement, pass through it and rotor
Protecgulum 3 is closely connected, and fore bearing 2 is completely enclosed.
In addition, as shown in Fig. 2, the lead-out wire 10 of stator coil 4 passes through hollow central shaft 7, due to central shaft 7 and rear axle
Hold 9 inner ring to be closely connected, therefore be also correspondingly pierced by from rear bearing 9, the threading on lead-out wire 10 and central shaft 7
Hole is completely enclosed using realizations such as rubber components or silica gel.
Preferably, stator coil 4 is connected together by stator support 5 with central shaft 7, forms stator component.At this time, it is fixed
The lead-out wire 10 of subcoil 4 initially passes through stator support 5, then passes through hollow central shaft 7, and correspondingly out of rear bearing 9
Circle is pierced by, and the threading hole on lead-out wire 10 and central shaft 7 is completely enclosed using realizations such as rubber components or silica gel.In addition heat pipe 12
Condensation segment also through stator support 5, then pass through hollow central shaft 7, and be correspondingly pierced by from the inner ring of rear bearing 9, heat
Completely enclosed between pipe 12 and central shaft 7 using realizations such as rubber components or silica gel.Preferably, central shaft 7 is hollow step
Axis, lead-out wire 10 and heat pipe 12 are isolated from each other when through stator support 5, central shaft 7 and rear bearing 9, as shown in Figure 1.
Preferably, rear bearing 9 is using closing bearing, such as sealed-bearing or bearing oiling envelope etc..
In addition, as shown in figure 4, after the condensation segment of heat pipe 12 extended to outside above-mentioned closed space, can also and set
One or more external radiators 11 outside closed space are connected, faster to dissipate heat inside closed space
Go out.External radiator 11 can be close to rear bearing 9 and set.Preferably, when motor is used in unmanned plane etc. with propeller, blade
Etc. under occasion, its caused air flow faster position when external radiator 11 can also be arranged on propeller, blade rotates
Put, for example be positioned close near power output shaft 1 so that the heat of external radiator 11 is dissipated into air etc. faster
In environment, so as to further improve the heat dissipation performance of motor.
After assembling is completed, such as Fig. 3 of the outer rotor brushless motor with radiator according to an embodiment of the invention
It is shown.
Be used it should be appreciated that the file being cited herein is only for reference, and not comprising it is any its may be with this paper's
Afoul content.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment only includes one
A independent technical solution, this narrating mode of specification is only that those skilled in the art will should say for clarity
Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with
The other embodiment of understanding.
Those listed above is a series of to describe illustrating only for possible embodiments of the invention in detail,
They simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change
More, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. outer rotor brushless motor with radiator, it is characterised in that including stator coil (4), rotor rear cover (8) and Bearing (9) afterwards, and one or more heat pipes (12),The evaporator section of the heat pipe (12) is arranged near the stator coil (4), and the condensation segment of the heat pipe (12) is from described The inner ring of rotor rear cover (8) or the rear bearing (9) is pierced by.
- 2. brushless electric machine according to claim 1, it is characterised in that central shaft (7) is further included,The condensation segment of the heat pipe (12) passes through the central shaft (7), and is pierced by from the inner ring of the rear bearing (9).
- 3. brushless electric machine according to claim 2, it is characterised in that further include fore bearing (2), rotor protecgulum (3), rotor Outer ring (6),The outer ring of the fore bearing (2) is closely connected with the rotor protecgulum (3)；The rotor protecgulum (3) is closely connected with the rotor outer ring (6)；The stator coil (4) is fixedly connected with the central shaft (7)；The rotor outer ring (6) is closely connected with the rotor rear cover (8)；The central shaft (7) and the inner ring of the rear bearing (9) are closely connected；The rotor rear cover (8) and the outer ring of the rear bearing (9) are closely connected；It is so so that the fore bearing (2), the rotor protecgulum (3), the rotor outer ring (6), the central shaft (7), described Rotor rear cover (8) and the rear bearing (9) form a closed space,Also, the condensation segment of the heat pipe (12) passes through the central shaft (7), the inner ring from the rear bearing (9) to prolong after being pierced by Extend the outside of the closed space.
- 4. brushless electric machine according to claim 3, it is characterised in that further include stator support (5), the central shaft (7) It is connected with the stator support (5), the stator support (5) is connected with the stator coil (4) again, the heat pipe (12) Condensation segment through the stator support (5) and the central shaft (7), be pierced by from the inner ring of the bearing (9) afterwards after extend to The outside of the closed space.
- 5. brushless electric machine according to claim 4, it is characterised in that the central shaft (7) is a hollow Step Shaft.
- 6. according to the brushless electric machine described in claim 1-5 any one, it is characterised in that further include power output shaft (1), institute The outer ring or rotor protecgulum (3) for stating power output shaft (1) and the fore bearing (2) are closely connected.
- 7. brushless electric machine according to claim 6, it is characterised in that the power output shaft (1) includes flange arrangement, leads to The flange arrangement is crossed to be closely connected with the rotor protecgulum (3).
- 8. the brushless electric machine according to Claims 2 or 3, it is characterised in that the lead-out wire (10) of the stator coil (4) is worn Cross the inner ring of the central shaft (7) and the rear bearing (9).
- 9. brushless electric machine according to claim 4 or 5, it is characterised in that the lead-out wire (10) of the stator coil (4) is worn The inner ring of the stator support (5), the central shaft (7) and the rear bearing (9) is crossed, the rear bearing (9) is closing axis Hold.
- 10. according to the brushless electric machine described in claim 1-2 any one, it is characterised in that further include one or more external Radiator (11), the condensation segment of the heat pipe (12) are connected with the external radiator (11).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227664.1A CN107947480A (en) | 2017-11-29 | 2017-11-29 | A kind of outer rotor brushless motor with radiator |
| PCT/CN2018/117698 WO2019105344A1 (en) | 2017-11-29 | 2018-11-27 | Outer rotor brushless motor with heat dissipating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227664.1A CN107947480A (en) | 2017-11-29 | 2017-11-29 | A kind of outer rotor brushless motor with radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947480A true CN107947480A (en) | 2018-04-20 |
Family
ID=61947723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711227664.1A Pending CN107947480A (en) | 2017-11-29 | 2017-11-29 | A kind of outer rotor brushless motor with radiator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107947480A (en) |
| WO (1) | WO2019105344A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105345A1 (en) * | 2017-11-29 | 2019-06-06 | 上海翼锆自动化科技有限公司 | Brushless electric motor with outer rotor |
| WO2019105344A1 (en) * | 2017-11-29 | 2019-06-06 | 上海翼锆自动化科技有限公司 | Outer rotor brushless motor with heat dissipating device |
| CN109995190A (en) * | 2019-05-07 | 2019-07-09 | 哈尔滨工业大学 | A kind of high torque density electrical machine of stator winding and heat pipe integrated radiating structure |
| CN112787466A (en) * | 2021-01-29 | 2021-05-11 | 沈阳工业大学 | Novel cooling structure of high-power-density permanent magnet motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115833479B (en) * | 2022-11-16 | 2023-07-18 | 南昌三瑞智能科技有限公司 | Brushless motor heat abstractor brushless motor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56157238A (en) * | 1980-05-07 | 1981-12-04 | Fanuc Ltd | Rotary motor |
| AU2001229481A1 (en) * | 2000-01-12 | 2001-07-24 | Mol Belting Company | Electric motor with external rotor |
| CN205123442U (en) * | 2015-12-01 | 2016-03-30 | 莆田市远泰工业科技有限公司 | Automobile wheel hub motor and applied this in -wheel motor's car |
| CN205283340U (en) * | 2015-12-28 | 2016-06-01 | 江苏中能金石机电设备有限公司 | PMSM convenient to heat dissipation |
| CN105515227B (en) * | 2015-12-28 | 2018-05-15 | 华南理工大学 | A kind of device for strengthening wheel hub motor heat dissipation performance |
| CN107947480A (en) * | 2017-11-29 | 2018-04-20 | 上海翼锆自动化科技有限公司 | A kind of outer rotor brushless motor with radiator |
| CN207910635U (en) * | 2017-11-29 | 2018-09-25 | 上海翼锆自动化科技有限公司 | A kind of outer rotor brushless motor with radiator |
-
2017
- 2017-11-29 CN CN201711227664.1A patent/CN107947480A/en active Pending
-
2018
- 2018-11-27 WO PCT/CN2018/117698 patent/WO2019105344A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019105345A1 (en) * | 2017-11-29 | 2019-06-06 | 上海翼锆自动化科技有限公司 | Brushless electric motor with outer rotor |
| WO2019105344A1 (en) * | 2017-11-29 | 2019-06-06 | 上海翼锆自动化科技有限公司 | Outer rotor brushless motor with heat dissipating device |
| CN109995190A (en) * | 2019-05-07 | 2019-07-09 | 哈尔滨工业大学 | A kind of high torque density electrical machine of stator winding and heat pipe integrated radiating structure |
| CN112787466A (en) * | 2021-01-29 | 2021-05-11 | 沈阳工业大学 | Novel cooling structure of high-power-density permanent magnet motor |
| CN112787466B (en) * | 2021-01-29 | 2024-02-09 | 沈阳工业大学 | Novel cooling structure of high-power density permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019105344A1 (en) | 2019-06-06 |
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