CN106451856A - Permanent magnet synchronous motor rotor with gas circulating function - Google Patents
Permanent magnet synchronous motor rotor with gas circulating function Download PDFInfo
- Publication number
- CN106451856A CN106451856A CN201611033616.4A CN201611033616A CN106451856A CN 106451856 A CN106451856 A CN 106451856A CN 201611033616 A CN201611033616 A CN 201611033616A CN 106451856 A CN106451856 A CN 106451856A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- rotating shaft
- synchronous motor
- spiral blade
- 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.)
- Granted
Links
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a permanent magnet synchronous motor rotor with a gas circulating function. A spiral blade is arranged on a rotating shaft of the rotor; a rotor iron core and a permanent magnet are arranged at the outer edge of the spiral blade; the rotor comprises the rotating shaft, the spiral blade, external spline discs, the rotor iron core and a permanent magnet sleeve; the inner edge of the spiral blade is fixed on the rotating shaft; the external spline discs are coaxially fixed on the rotating shaft at two ends of the spiral blade; internal splines matched with the corresponding external spline discs are arranged on the rotor iron core and at two ends of an inner cavity of the permanent magnet sleeve; ventilation holes are formed in the external spline discs. According to the permanent magnet synchronous motor rotor disclosed by the invention, air circulation inside the motor can be accelerated, temperature differences among all parts of a whole permanent magnet synchronous motor are enabled to be reduced, magnetic loss of a permanent magnet caused by local overheat is avoided, and the aim of reducing the temperature of a motor rotor is indirectly achieved.
Description
Technical field
The present invention relates to a kind of permanent-magnetic synchronous motor rotor, specifically a kind of by the indoor design spiral in original rotor
Shape blade and air vent realize the gas circulation of permagnetic synchronous motor internal closed space, realize the transmission of heat.
Background technology
Permasyn morot power factor is high, and efficiency high progressively replaces AC induction motor in many occasions.Few at present
Number developed country begins to use permanent-magnet synchronizing traction motor as the power source of high-speed railway.For avoiding the corruption such as water, dust, iron filings
Erosion motor internal permanent magnet, magneto adopts full-closed structure.Due to permanent magnet traction motor power used in track traffic
It is usually more than 500KW, caloric value is big, the permanent-magnet material in rotor is under the mal-conditions such as high temperature it may occur however that loss of excitation
Possibility.Temperature control is the bottleneck that permanent-magnet synchronizing traction motor uses, and the heat radiation power how increasing rotor becomes urgently
The difficult problem solving.
The gas circulation of existing permagnetic synchronous motor internal closed space, relies primarily on and is arranged on two ends of rotor end face
Fin is followed in the space between rotor and end cap when rotor rotates together and is carried out heat exchange, and larger for caloric value
Rotor outer surface and winding outer surface, space therebetween is less, and gas fluidity is poor.
Content of the invention
The problem running into for the radiating of above-mentioned permanent-magnet synchronizing traction motor inner rotator, the present invention provides a kind of reinforcement permanent magnetism
The structure that synchronous motor inner chamber gas circulate.
To achieve these goals, present invention employs technical scheme below：
A kind of permanent-magnetic synchronous motor rotor with gas circulatory function, the rotating shaft of described rotor is provided with helical blade,
Rotor core and permanent magnet are arranged on helical blade outer.
Described rotor includes rotating shaft, helical blade and external splines disk and rotor core and permanent magnet sleeve, described
Along being fixed in rotating shaft in helical blade, the rotating shaft at helical blade two ends is coaxially fixed with external splines disk, rotor iron respectively
The two ends of core and permanent magnet barrel bore are provided with the internal spline matching with external splines disk, and external splines disk offers ventilation
Hole.
Compared with prior art, the beneficial effect that the present invention possesses：
The present invention can accelerate the air circulation of motor internal, makes between each position of the whole permagnetic synchronous motor of reduction
The temperature difference, it is to avoid the permanent magnet loss of excitation that hot-spot leads to occurs, indirectly reduces the purpose of motor rotor temperature.
Brief description
Fig. 1 is the assembling structure schematic diagram of helical blade, external splines disk and rotor shaft.
Fig. 2 is rotor core and permanent magnet tube-in-tube structure schematic diagram.
Fig. 3 is the assembling structure schematic diagram of permagnetic synchronous motor.
Specific embodiment
Below by embodiment, technical scheme is further elaborated.
Embodiment 1
A kind of permanent-magnetic synchronous motor rotor with gas circulatory function, the rotating shaft 1 of described rotor is provided with helical blade
2, rotor core and permanent magnet are arranged on helical blade 2 outer.
Described rotor includes rotating shaft 1, helical blade 2, external splines disk 4 and rotor core and permanent magnet sleeve 3, described
Along being fixed in rotating shaft 1 in helical blade 2, the rotating shaft 1 at helical blade 2 two ends is coaxially fixed with external splines disk 4 respectively, turns
The two ends of sub- iron core and permanent magnet sleeve 3 inner chamber are provided with the internal splined hole 6 matching with external splines disk 4, on external splines disk 4
Offer passage 5.
External splines disk 4 and internal splined hole 6 matching relationship therebetween are spline tooth top interference fit.
During electric motor operation, rotor core and permanent magnet sleeve 3 produce turning moment, transmit moment to rotor by spline
Rotating shaft 1 part, export outside motor.
The centre of rotor shaft part is spiral flabellum, and when permagnetic synchronous motor works, flabellum is in company with rotating shaft 1 one
With rotation so that the gas of one end of rotor moves to the other end in the presence of spiral sector.Meanwhile, the other end
Gas passes through the space between rotor and stator, returns to one end, completes circulating of gas.The heat that rotor produces leads to
Cross casing and end cap sheds.
In figure, 7 is stator winding, and 8 is outer air duct, and 9 is interior air channel, and 10 is motor housing.
Claims (2)
1. a kind of permanent-magnetic synchronous motor rotor with gas circulatory function is it is characterised in that the rotating shaft of described rotor is provided with
Helical blade, rotor core and permanent magnet are arranged on helical blade outer.
2. permanent-magnetic synchronous motor rotor as claimed in claim 1 it is characterised in that described rotor include rotating shaft, helical blade,
And external splines disk and rotor core and permanent magnet sleeve, in described helical blade, edge is fixed in rotating shaft, helical blade
External splines disk is coaxially fixed with the rotating shaft at two ends, the two ends of rotor core and permanent magnet barrel bore are provided with and outer flower respectively
The internal spline that key disk matches, external splines disk offers passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033616.4A CN106451856B (en) | 2016-11-18 | 2016-11-18 | A kind of permanent-magnetic synchronous motor rotor with gas circulatory function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033616.4A CN106451856B (en) | 2016-11-18 | 2016-11-18 | A kind of permanent-magnetic synchronous motor rotor with gas circulatory function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106451856A true CN106451856A (en) | 2017-02-22 |
| CN106451856B CN106451856B (en) | 2019-05-21 |
Family
ID=58221467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033616.4A Active CN106451856B (en) | 2016-11-18 | 2016-11-18 | A kind of permanent-magnetic synchronous motor rotor with gas circulatory function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451856B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142974A1 (en) * | 2020-12-31 | 2022-07-07 | 广东美的制冷设备有限公司 | Motor rotor and motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030063979A1 (en) * | 2001-09-03 | 2003-04-03 | Sunonwealth Electric Machines Industry Co., Ltd. | Heat-dissipating fan structure |
| CN101098092A (en) * | 2006-06-27 | 2008-01-02 | 本田技研工业株式会社 | Motor |
| CN201288630Y (en) * | 2008-11-01 | 2009-08-12 | 广东万和新电气有限公司 | Water flow electricity generating apparatus for gas water heater |
| CN202417973U (en) * | 2012-01-17 | 2012-09-05 | 昆明千恒信息技术有限公司 | Minitype axial flow type brushless direct current air pump |
| CN203482005U (en) * | 2012-09-10 | 2014-03-12 | 樊方杰 | Duct moment rotor integrated spiral electric water spray propeller |
-
2016
- 2016-11-18 CN CN201611033616.4A patent/CN106451856B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030063979A1 (en) * | 2001-09-03 | 2003-04-03 | Sunonwealth Electric Machines Industry Co., Ltd. | Heat-dissipating fan structure |
| CN101098092A (en) * | 2006-06-27 | 2008-01-02 | 本田技研工业株式会社 | Motor |
| CN201288630Y (en) * | 2008-11-01 | 2009-08-12 | 广东万和新电气有限公司 | Water flow electricity generating apparatus for gas water heater |
| CN202417973U (en) * | 2012-01-17 | 2012-09-05 | 昆明千恒信息技术有限公司 | Minitype axial flow type brushless direct current air pump |
| CN203482005U (en) * | 2012-09-10 | 2014-03-12 | 樊方杰 | Duct moment rotor integrated spiral electric water spray propeller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142974A1 (en) * | 2020-12-31 | 2022-07-07 | 广东美的制冷设备有限公司 | Motor rotor and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106451856B (en) | 2019-05-21 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |