CN207910584U - Inner-rotor brushless motor of the band from cooling mechanism - Google Patents

Inner-rotor brushless motor of the band from cooling mechanism Download PDF

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Publication number
CN207910584U
CN207910584U CN201721895835.3U CN201721895835U CN207910584U CN 207910584 U CN207910584 U CN 207910584U CN 201721895835 U CN201721895835 U CN 201721895835U CN 207910584 U CN207910584 U CN 207910584U
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CN
China
Prior art keywords
shaft
rotor
shell
bearing bracket
brushless motor
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Active
Application number
CN201721895835.3U
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Chinese (zh)
Inventor
张硕
郭广宇
章晓冬
周振飞
顾维春
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Wuxi Hanhe Aviation Technology Co Ltd
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Wuxi Hanhe Aviation Technology Co Ltd
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Priority to CN201721895835.3U priority Critical patent/CN207910584U/en
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Abstract

The utility model is related to brushless motor field, inner-rotor brushless motor of specifically a kind of band from cooling mechanism.It includes shell, and the stator of winding coil is circumferentially fixed in shell, has shaft in shell, the rotor of permanent-magnet steel is cased in shaft.The output end that one end of shaft extends except shell as the motor, the corresponding shell one end of shaft output end has drive end bearing bracket, the other end of shell to have rear end cap.Its main feature is that the rotor is made of the inner sleeve and outer tube of arranged concentric, inner sleeve is sleeved in the shaft and the two is in being fixedly connected, and by the radial support plate being circumferentially evenly arranged is in integrally connected between the outer wall of inner sleeve and the inner wall of outer tube.The drive end bearing bracket and rear end cap are concentric in the shaft between drive end bearing bracket and rotor to be fixed with centrifugal fan in Openworks shape.The inner-rotor brushless motor not only has good heat dissipation effect, and can prevent foreign matter from entering, and ensures the safe operation of motor.

Description

Inner-rotor brushless motor of the band from cooling mechanism
Technical field
The utility model is related to brushless motor field, specifically a kind of band from the inner-rotor brushless motor of cooling mechanism, It is particularly suitable for the internal rotor power motor that unmanned plane uses.
Background technology
It is well known that brushless motor usually has the structure of full-closed structure and open type heat dissipation, the difference of radiator structure to set Meter can bring different operating temperature, the job requirements for adapting to different occasions.
Traditional open type brushless motor is all the frame structure at radioactive ray by the end cover designs at both ends, will not usually be set Dedicated heat dissipation wind channel is set, because of the open architecture of its own, can meet the heat discharge under high power operating.And it is right Usually all it is to radiate by shell, or in addition setting is special in those for use environment has the brushless motor of seal request The cooling mechanism of door, but the heat dissipation effect in the case where running at high speed is often not satisfactory.
In unmanned plane field, drives the inner-rotor brushless motor of power source to be generally used open type as propeller and dissipate Heat structure.However, when unmanned plane flight in rugged environment, foreign matter falls into electricity easily through the open cover board in upper end Inside machine, motor is caused even to get stuck to seize up, there are prodigious security risks.And if turned using in full-closed structure Sub- brushless motor only relies on shell heat dissipation and cannot be satisfied cooling requirements motor runs at high speed under, the installation space of motor and by To the limitation of unmanned plane volume, in addition cooling mechanism can not be set, the job requirements of unmanned plane can not be met.
Utility model content
Problem to be solved in the utility model is to provide a kind of band from the inner-rotor brushless motor of cooling mechanism, the internal rotor Brushless motor not only has good heat dissipation effect, and can prevent foreign matter from entering, and ensures the safe operation of motor.
To solve the above problems, taking following technical scheme:
The band of the utility model from the inner-rotor brushless motor of cooling mechanism include columnar shell, in shell circumferentially Be fixed with the stator of winding coil, there is the shaft of arrangement concentric with it in shell, be cased with the rotor of permanent-magnet steel in shaft, rotor with There is gap between stator.The output end that one end of the shaft extends except shell as the motor, shaft output end are corresponding Shell one end has drive end bearing bracket, the other end of shell to have rear end cap, be rotating between shaft and drive end bearing bracket, rear end cap.It is special Point is that the rotor is made of the inner sleeve and outer tube of arranged concentric, and inner sleeve is sleeved in the shaft and the two connects in fixed It connects, by the radial support plate that is circumferentially evenly arranged is in integrally connected between the outer wall of inner sleeve and the inner wall of outer tube.It is described Drive end bearing bracket and rear end cap are concentric in the shaft between drive end bearing bracket and rotor to be fixed with centrifugal fan in Openworks shape.
Wherein, the position for connecting shaft on the rear end cap from center is in radioactive ray frame structure outward so that rear end cap In Openworks shape.
The position for connecting shaft on the drive end bearing bracket from center is densely covered with cellular through-hole outward so that drive end bearing bracket is in engrave Empty shape.
Further improvement of the utility model scheme is the radiating fin that the outer wall of the shell is evenly equipped with annular.
Said program is taken, is had the following advantages:
The band of the utility model is from the rotor of the inner-rotor brushless motor of cooling mechanism by the inner sleeve of arranged concentric and outer Casing forms, and inner sleeve is sleeved in the shaft and the two is in being fixedly connected, and is led between the outer wall of inner sleeve and the inner wall of outer tube It is in integrally connected to cross the radial support plate being circumferentially evenly arranged;Drive end bearing bracket and rear end cap are in Openworks shape, on the inside of rear end cap Shaft is fixedly connected with centrifugal fan with one heart.The inner-rotor brushless motor is mounted on unmanned plane and is used, rotor rotation When centrifugal fan can be driven to rotate, to generate via the sector channel of inner room inside and outside rear end cap, rotor, drive end bearing bracket movement it is steady Determine air-flow, heat when by motor operation is taken away, and has good heat dissipation performance.Simultaneously as installing internal rotor on unmanned plane Require its output end that must install upwards when brushless motor, thus from rear end cap forward end cap move steady air flow will generate to On thrust, the foreign matter that will fall into motor can be blown away, prevent foreign matter from entering inside motor and generate to seize up or card Shell ensures the safe operation of motor or even unmanned plane.
Description of the drawings
Fig. 1 is the band of the utility model from the perspective cross-sectional structural schematic diagram of the inner-rotor brushless motor of cooling mechanism;
Fig. 2 be the utility model band from the inner-rotor brushless motor operation of cooling mechanism when air-flow move towards schematic diagram.
Specific implementation mode
The utility model is described in further details below in conjunction with attached drawing.
As depicted in figs. 1 and 2, the band of the utility model includes columnar outer from the inner-rotor brushless motor of cooling mechanism Shell 3 is circumferentially fixed with the stator 4 of winding coil in shell 3, has the shaft 1 of arrangement concentric with it in shell 3, is covered in shaft 1 There is the rotor of permanent-magnet steel, has gap between rotor and stator 4.One end of the shaft 1 extends except shell 3 as the motor Output end, corresponding 3 one end of shell of 1 output end of shaft have drive end bearing bracket 2, the other end of shell 3 to have rear end cap 6, shaft 1 and front end It is rotating between lid 2, rear end cap 6.The rotor is made of the inner sleeve 73 and outer tube 71 of arranged concentric, inner sleeve 73 It is sleeved in the shaft 1 and the two is in being fixedly connected, by circumferentially equal between the outer wall and the inner wall of outer tube 71 of inner sleeve 73 The radial support plate 72 of even arrangement is in integrally connected.The drive end bearing bracket 2 and rear end cap 6 are in Openworks shape, between drive end bearing bracket 2 and rotor Shaft 1 on be fixed with centrifugal fan 8 with one heart.
Wherein, the position for connecting shaft 1 on the rear end cap 6 from center is in radioactive ray frame structure outward so that rear end Lid 6 is in Openworks shape.The position for connecting shaft 1 on the drive end bearing bracket 2 from center is densely covered with cellular through-hole outward so that front end Lid 2 is in Openworks shape.The outer wall of the shell 3 is evenly equipped with the radiating fin 5 of annular.
In use, the band of the utility model is mounted on from the inner-rotor brushless motor of cooling mechanism on unmanned plane.Work as nothing When man-machine flight, the rotor high-speed rotation of the inner-rotor brushless motor drives centrifugal fan 8 to run at high speed, after being produced from The steady air flow of the sector channel of inner room, centrifugal fan 8, drive end bearing bracket 2 flowed up inside and outside end cap 6, rotor(Such as Fig. 2), this Stock air-flow can incessantly by motor operation when heat take away, have good heat dissipation performance.Moreover, uniformly distributed on shell 3 Radiating fin 5 can also play the effect of auxiliary heat dissipation, can further improve the heat dissipation performance of the inner-rotor brushless motor.Together When, due to the inner-rotor brushless motor installed on unmanned plane output end upwards and be connected with propeller, the internal rotor without Ascending air inside brush motor can generate upward thrust.This burst of lifting force can blow away the foreign matter above motor, prevent They are entered inside motor, can avoid the phenomenon that motor occurs to seize up or gets stuck, it is ensured that the normal operation of motor ensures The safe flight of unmanned plane.

Claims (4)

1. band is from the inner-rotor brushless motor of cooling mechanism, including columnar shell(3), shell(3)Inside circumferentially it is fixed with The stator of winding coil(4), shell(3)Inside there is the shaft of arrangement concentric with it(1), shaft(1)On be cased with the rotor of permanent-magnet steel, Rotor and stator(4)Between have gap;The shaft(1)One end extend shell(3)Except output end as the motor, turn Axis(1)The corresponding shell of output end(3)There is drive end bearing bracket in one end(2), shell(3)The other end have rear end cap(6), shaft(1)With Drive end bearing bracket(2), rear end cap(6)Between be rotating;It is characterized in that inner sleeve of the rotor by arranged concentric(73)With Outer tube(71)Composition, inner sleeve(73)It is sleeved on the shaft(1)Upper and the two is in be fixedly connected, inner sleeve(73)Outer wall and Outer tube(71)Inner wall between pass through the radial support plate that is circumferentially evenly arranged(72)In integrally connected;The drive end bearing bracket(2) And rear end cap(6)It is in Openworks shape, drive end bearing bracket(2)Shaft between rotor(1)On be fixed with centrifugal fan with one heart(8).
2. band as described in claim 1 is from the inner-rotor brushless motor of cooling mechanism, it is characterised in that the rear end cap(6)On Shaft is connected from center(1)Position outward be in radioactive ray frame structure so that rear end cap(6)In Openworks shape.
3. band as described in claim 1 is from the inner-rotor brushless motor of cooling mechanism, it is characterised in that the drive end bearing bracket(2)On Shaft is connected from center(1)Position be densely covered with cellular through-hole outward so that drive end bearing bracket(2)In Openworks shape.
4. band as claimed any one in claims 1 to 3 is from the inner-rotor brushless motor of cooling mechanism, it is characterised in that described Shell(3)Outer wall be evenly equipped with annular radiating fin(5).
CN201721895835.3U 2017-12-30 2017-12-30 Inner-rotor brushless motor of the band from cooling mechanism Active CN207910584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721895835.3U CN207910584U (en) 2017-12-30 2017-12-30 Inner-rotor brushless motor of the band from cooling mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721895835.3U CN207910584U (en) 2017-12-30 2017-12-30 Inner-rotor brushless motor of the band from cooling mechanism

Publications (1)

Publication Number Publication Date
CN207910584U true CN207910584U (en) 2018-09-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109818457A (en) * 2019-03-18 2019-05-28 扬州市华胜机电制造有限公司 A kind of heat dissipation brushless motor certainly
CN113054775A (en) * 2019-12-27 2021-06-29 威刚科技股份有限公司 Inner rotor and motor
WO2021128274A1 (en) * 2019-12-27 2021-07-01 威刚科技股份有限公司 Internal rotor and motor
CN117294076A (en) * 2023-11-27 2023-12-26 南昌三瑞智能科技股份有限公司 Motor cooling system and unmanned aerial vehicle power device
CN117294076B (en) * 2023-11-27 2024-02-20 南昌三瑞智能科技股份有限公司 Motor cooling system and unmanned aerial vehicle power device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109818457A (en) * 2019-03-18 2019-05-28 扬州市华胜机电制造有限公司 A kind of heat dissipation brushless motor certainly
WO2020186805A1 (en) * 2019-03-18 2020-09-24 扬州市华胜机电制造有限公司 Self-heat-dissipation brushless motor
CN113054775A (en) * 2019-12-27 2021-06-29 威刚科技股份有限公司 Inner rotor and motor
WO2021128274A1 (en) * 2019-12-27 2021-07-01 威刚科技股份有限公司 Internal rotor and motor
CN113054775B (en) * 2019-12-27 2023-01-03 威刚科技股份有限公司 Inner rotor and motor
CN117294076A (en) * 2023-11-27 2023-12-26 南昌三瑞智能科技股份有限公司 Motor cooling system and unmanned aerial vehicle power device
CN117294076B (en) * 2023-11-27 2024-02-20 南昌三瑞智能科技股份有限公司 Motor cooling system and unmanned aerial vehicle power device

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