CN206517185U - Rotor assembly and motor - Google Patents

Rotor assembly and motor Download PDF

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Publication number
CN206517185U
CN206517185U CN201621108951.1U CN201621108951U CN206517185U CN 206517185 U CN206517185 U CN 206517185U CN 201621108951 U CN201621108951 U CN 201621108951U CN 206517185 U CN206517185 U CN 206517185U
Authority
CN
China
Prior art keywords
rotor assembly
outer barrel
rotor
rotating shaft
core
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.)
Expired - Fee Related
Application number
CN201621108951.1U
Other languages
Chinese (zh)
Inventor
李忠雨
张小波
刘健宁
张芳
郭长光
贾金信
李广海
魏琼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Zhuhai Kaibang Motor Manufacture Co Ltd
Original Assignee
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd filed Critical Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority to CN201621108951.1U priority Critical patent/CN206517185U/en
Application granted granted Critical
Publication of CN206517185U publication Critical patent/CN206517185U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of rotor assembly and motor.The rotor assembly includes rotating shaft (1) and is set in the outer barrel (2) of rotating shaft (1) outside, it is connected between the inwall of outer barrel (2) and the outer wall of rotating shaft (1) by axial flow fan leaf (3), outer wall of multiple axial flow fan leaves (3) along rotating shaft (1) is circumferentially disposed.According to rotor assembly of the present utility model, the speed air flow of peritrochanteric can be accelerated, rotor heat-sinking capability is improved.

Description

Rotor assembly and motor
Technical field
The utility model is related to technical field of motors, in particular to a kind of rotor assembly and motor.
Background technology
Because surface conditions are complicated during electric automobile during traveling, its motor usually needs to relate to dirt, operation of paddling, institute To there is very high requirement in terms of dust-proof, water resistance to motor.With automobile drive electric motor manufacture level and technique essence The continuous lifting of degree, motor is greatly improved in dust and water protection performance.
Current most motors have used the cooling structure of Totally Enclosed Water-Cooled, and its casing can effectively prevent water And dust granules enter motor inside, it is ensured that motor safety run, and water cooling type machine shell have to the stationary part of motor compared with Good cooling effect, but rotor portion is wrapped in the air cavity at air gap and two ends, its surrounding air flowing velocity is relatively low, right Flow exchange capability of heat undesirable, so that rotor heat dispersion is reduced, permanent magnet can be caused to send out into demagnetization phenomenon when serious so that Electric efficiency reduces and adds the control difficulty to motor.
Utility model content
A kind of rotor assembly and motor are provided in the utility model embodiment, the air flow speed of peritrochanteric can be accelerated Degree, improves rotor heat-sinking capability.
To achieve the above object, the utility model embodiment provides a kind of rotor assembly, including rotating shaft and is set in rotating shaft Outer outer barrel, is connected between the inwall of outer barrel and the outer wall of rotating shaft by axial flow fan leaf, outer wall of multiple axial flow fan leaves along rotating shaft It is circumferentially disposed.
Preferably, rotor assembly also includes rotor core, rotor core is set in outside outer barrel, and is formed between outer barrel It is circumferential spacing.
Preferably, connecting to form circumferential spacing by connecting key between rotor core and outer barrel.
Preferably, multiple connecting keys are uniform along the circumference of outer barrel.
Preferably, the shaft end backstop being provided at both ends with to rotor core formation axially position of rotor core.
Preferably, shaft end backstop is the ring baffle being set in outside outer barrel.
Preferably, the stop end end of outer barrel is provided with radial protrusion, radial protrusion forms axial limit to rotor core Position.
Preferably, each axial flow fan leaf is extended spirally along the outer wall of rotating shaft.
According to another aspect of the present utility model there is provided a kind of motor, including rotor assembly and it is set in rotor assembly Outer stator core, the rotor assembly is to be provided with multiple air gaps, air gap on above-mentioned rotor assembly, the internal perisporium of stator core Opening towards rotor assembly periphery wall.
Using the technical solution of the utility model, rotor assembly includes rotating shaft and the outer barrel being set in outside rotating shaft, outer barrel Connected between inwall and the outer wall of rotating shaft by axial flow fan leaf, multiple axial flow fan leaves are circumferentially disposed along the outer wall of rotating shaft.In rotor Axial flow fan leaf is provided between the rotating shaft of component and outer barrel, the axial flow fan leaf can play self-excitation when rotor assembly is rotated Fan is acted on, and disturbs rotor assembly internal flow, and disturbance high pressure is produced inside rotor assembly, a part of fluid is forced along motor Axially blowout, therefore the flow efficiency of rotor assembly internal gas can be accelerated, the heat-sinking capability of rotor assembly is improved, reduces wind The generation of abrasion consumption, improves motor service behaviour.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application, Schematic description and description of the present utility model is used to explain the utility model, does not constitute to of the present utility model improper Limit.In the accompanying drawings:
Fig. 1 is the broken section structural representation of the rotor assembly of the utility model embodiment;
Fig. 2 is the cross-sectional structure schematic diagram of the rotor assembly of the utility model embodiment;
Fig. 3 is longitudinal cross section structure diagram of the rotor assembly of the utility model embodiment.
Description of reference numerals:1st, rotating shaft;2nd, outer barrel;3rd, axial flow fan leaf;4th, rotor core;5th, connecting key;6th, ring baffle; 7th, radial protrusion;8th, stator core;9th, air gap.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as to this practicality New restriction.
The signified direction of arrow is the direction of motor internal flow of fluid in figure.
Referring to shown in Fig. 1 to Fig. 3, according to embodiment of the present utility model, rotor assembly includes rotating shaft 1 and is set in rotating shaft Outer barrel 2 outside 1, is connected between the inwall of outer barrel 2 and the outer wall of rotating shaft 1 by axial flow fan leaf 3, and multiple axial flow fan leaves 3 are along rotating shaft 1 Outer wall it is circumferentially disposed.
Rotating shaft 1 is located at the center that motor rotates, and is connected with external device, power, axial flow fan leaf 3 are provided for external device Between the outer barrel 2 of rotating shaft 1 and rotor assembly, play a part of connection rotating shaft 1 and outer barrel 2, and institute is provided for rotor assembly The support strength needed, it is ensured that rotor assembly not eccentric rotary.
Axial flow fan leaf 3 is provided between the rotating shaft 1 of rotor assembly and outer barrel 2, axial flow fan leaf 3 has in the axial direction of rotating shaft 1 Certain angle of inclination, depending on the angle of inclination can need according to the structural strength of cooling and rotor assembly, axial flow fan leaf is in itself There is certain radian, this radian meets aerodynamic principle, therefore the axial flow fan leaf 3 is when rotor assembly is rotated, can The fan effect of self-excitation property is played, rotor assembly internal flow is disturbed, disturbance high pressure is produced inside rotor assembly, a part is forced Fluid is axially blown out along motor, can accelerate the flow efficiency of rotor assembly internal gas, improves the heat-sinking capability of rotor assembly, Reduce the generation of wind moussing loss simultaneously, improve electric efficiency.The radian of axial flow fan leaf 3 can be according to institute's required airflow and Pneumatic pressure Depending on power.
Rotor assembly also includes rotor core 4, and rotor core 4 is set in outside outer barrel 2, and forms circumferential between outer barrel 2 It is spacing.It is circumferential spacing by being formed between rotor core 4 and outer barrel 2, the rotary action power of rotating shaft 1 can be passed by outer barrel 2 Rotor core 4 is handed to, rotor core 4 is together rotated with rotating shaft 1, the stable operation of rotor assembly is realized.
In the present embodiment, form circumferential spacing by the connection of connecting key 5 between rotor core 4 and outer barrel 2.Rotating assembly Outer barrel 2 be located between support lacing wire and rotor core, and there is keyway distribution on its surface, on the internal perisporium of rotor core 4 Corresponding keyway is also equipped with, connecting key 5 is arranged between corresponding two keyways, to being formed between rotor core 4 and outer barrel 2 Connection, so as to play a part of fixed rotor iron core.
Preferably, multiple connecting keys 5 are along the circumferential uniform of outer barrel 2, so as to ensure the week between outer barrel 2 and rotor core 4 It is evenly distributed to position-limiting action power, it is to avoid shearing force caused by unbalance stress etc., reduction outer barrel 2 or rotor core 4 occur The possibility twisted due to circumferential unbalance stress.Connecting key 5 can be flat key, or spline, specifically can basis Need to be set.
Circumference between connecting key 5 and outer barrel 2 is spacing to be realized by modes such as clampings.
Preferably, the shaft end backstop being provided at both ends with to the formation axially position of rotor core 4 of rotor core 4.The shaft end Backstop can carry out axial limiting to rotor core 4, prevent rotor core 4 from occurring play on axial direction, improve rotor assembly Stability and reliability during work.
In the present embodiment, shaft end backstop is the ring baffle 6 being set in outside outer barrel 2.The ring baffle 6 can the company of fixation It is connected on outer barrel 2, or realization being fixed to rotor core 4 is applied to ring baffle 6 by external structure.The shaft end Backstop can also be nut either bearing pin etc..If shaft end backstop uses nut, be preferred to use double nut, i.e., per side Shaft end backstop includes two nuts, so as to prevent nut from falling off in use, improves the steady of stop configurations It is qualitative.
In the present embodiment, the stop end end of outer barrel 2 is provided with radial protrusion 7, and radial protrusion 7 is to the shape of rotor core 4 Into axial limiting.When carrying out the installation of rotor core 4, a ring baffle 6 can be first installed on outer barrel 2, then will be turned Sub- iron core 4 is set on outer barrel 2, and rotor core 4 is slided into vertically on outer barrel 2, when mounted ring baffle 6 is reached During radial protrusion 7, rotor core 4 is installed in place, and now another ring baffle 6 can be arranged on outer barrel 2, to rotor The axial stop of the formation other end of iron core 4.
Preferably, outer wall of each axial flow fan leaf 3 along rotating shaft 1 is extended spirally, by increasing capacitance it is possible to increase conveying of the axial flow fan leaf 3 to fluid Efficiency, improves the heat exchange efficiency inside rotor assembly.
With reference to shown in referring to Fig. 1 to 3, according to embodiment of the present utility model, motor includes rotor assembly and is set in turn Stator core 8 outside sub-component, the rotor assembly is above-mentioned rotor assembly, is provided with the internal perisporium of stator core 8 multiple Air gap 9, the periphery wall of the opening of air gap 9 towards rotor assembly.
When the rotor rotates, the support of self-excitation property aerofoil fan can disturb its internal flow, internally produce disturbance high pressure, compel A part of fluid is axially blown out along motor, be blown to after end cap and react on stator winding end, cooling, such as Fig. 3 are provided for it Shown in middle wind path a, another part fluid can be brushed under Coriolis Effect (Coriolis force) direct effect stator around The inner side of group end, is that Stator End Winding plays further cooling effect, as shown in wind path b in Fig. 3, two-way fluid exists Air gap entrance converges, and during due to fluid before air gap is flowed into, the flowing space die-offs, and can cause speed when fluid flows through air gap Have and be greatly improved, so as to improve the convection transfer rate of rotor surface, improve the cooling effect to rotor surface, gas After air gap comes out, the Stator End Winding of opposite side is brushed again, into axial fan type self-excitation rotor supports, forms fluid Flow circuit so that the heat between heat and rotor assembly and stator winding inside rotor assembly can be discharged quickly, Avoid the occurrence of permanent magnet demagnetization phenomenon.
Certainly, above is preferred embodiment of the present utility model.It should be pointed out that for the ordinary skill of the art For personnel, on the premise of the utility model general principle is not departed from, some improvements and modifications can also be made, these improvement Protection domain of the present utility model is also considered as with retouching.

Claims (9)

1. a kind of rotor assembly, it is characterised in that including rotating shaft (1) and be set in the outer barrel (2) of rotating shaft (1) outside, the outer barrel (2) it is connected between inwall and the outer wall of the rotating shaft (1) by axial flow fan leaf (3), multiple axial flow fan leaves (3) are along described The outer wall of rotating shaft (1) is circumferentially disposed.
2. rotor assembly according to claim 1, it is characterised in that the rotor assembly also includes rotor core (4), institute State rotor core (4) and be set in the outer barrel (2) outside, and form circumferential spacing between the outer barrel (2).
3. rotor assembly according to claim 2, it is characterised in that between the rotor core (4) and the outer barrel (2) The circumference is formed by connecting key (5) connection spacing.
4. rotor assembly according to claim 3, it is characterised in that multiple connecting keys (5) are along the outer barrel (2) It is circumferential uniform.
5. rotor assembly according to claim 2, it is characterised in that the rotor core (4) is provided at both ends with to institute State the shaft end backstop of rotor core (4) formation axially position.
6. rotor assembly according to claim 5, it is characterised in that the shaft end backstop is to be set in the outer barrel (2) Outer ring baffle (6).
7. rotor assembly according to claim 6, it is characterised in that the stop end end of the outer barrel (2) is provided with footpath To raised (7), the radial protrusion (7) is to the rotor core (4) formation axial limiting.
8. rotor assembly according to claim 1, it is characterised in that each axial flow fan leaf (3) is along the rotating shaft (1) Outer wall is extended spirally.
9. a kind of motor, including rotor assembly and the stator core (8) being set in outside the rotor assembly, it is characterised in that institute State and set on rotor assembly of the rotor assembly any one of claim 1 to 8, the internal perisporium of the stator core (8) There are multiple air gaps (9), the periphery wall of the opening of the air gap (9) towards the rotor assembly.
CN201621108951.1U 2016-10-08 2016-10-08 Rotor assembly and motor Expired - Fee Related CN206517185U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621108951.1U CN206517185U (en) 2016-10-08 2016-10-08 Rotor assembly and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621108951.1U CN206517185U (en) 2016-10-08 2016-10-08 Rotor assembly and motor

Publications (1)

Publication Number Publication Date
CN206517185U true CN206517185U (en) 2017-09-22

Family

ID=59861042

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621108951.1U Expired - Fee Related CN206517185U (en) 2016-10-08 2016-10-08 Rotor assembly and motor

Country Status (1)

Country Link
CN (1) CN206517185U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374661A (en) * 2016-10-08 2017-02-01 珠海格力节能环保制冷技术研究中心有限公司 Rotor assembly and motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374661A (en) * 2016-10-08 2017-02-01 珠海格力节能环保制冷技术研究中心有限公司 Rotor assembly and motor
CN106374661B (en) * 2016-10-08 2019-01-04 珠海格力电器股份有限公司 Rotor assembly and motor

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Legal Events

Date Code Title Description
TR01 Transfer of patent right

Effective date of registration: 20180507

Address after: 519000 9 Building (Science and technology building) 789 Jinji Road, Qianshan, Zhuhai, Guangdong

Co-patentee after: ZHUHAI KAIBANG MOTOR MANUFACTURE Co.,Ltd.

Patentee after: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI

Address before: 519070 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong

Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170922

Termination date: 20211008