CN112366865A - Turbine heat dissipation type permanent magnet motor rotor - Google Patents
Turbine heat dissipation type permanent magnet motor rotor Download PDFInfo
- Publication number
- CN112366865A CN112366865A CN202011296818.4A CN202011296818A CN112366865A CN 112366865 A CN112366865 A CN 112366865A CN 202011296818 A CN202011296818 A CN 202011296818A CN 112366865 A CN112366865 A CN 112366865A
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- CN
- China
- Prior art keywords
- rotor core
- permanent magnet
- sleeve
- rotor
- heat dissipation
- 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
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- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to the field of rare earth permanent magnet motors, and provides a turbine heat dissipation type permanent magnet motor rotor. Including the pivot, the sleeve has been cup jointed in the middle of the pivot, telescopic lateral wall is equipped with turbine fan blade, rotor core has been cup jointed in the sleeve outside, rotor core's both ends are fixed in the sleeve through the end cover, rotor core is unsettled to be fixed in telescopic periphery, be formed with the wind channel between rotor core and sleeve, rotor core radially is equipped with the multiunit air vent, the air vent runs through rotor core, the wind channel passes through air vent and external intercommunication, rotor core equidimension is equipped with the multiunit permanent magnet, rotor core is equipped with the wall between every group permanent magnet and. The invention changes the mode that the rotor core is directly arranged on the rotating shaft, and the sleeve with the turbine fan is arranged between the rotor core and the rotating shaft, so that the utilization value of the internal space of the rotor core is deeply developed, and the rotor can generate heat dissipation wind power in the rotating process, thereby improving the heat dissipation efficiency of the rotor and avoiding the influence of the overheating of the rotor on the magnetic force of the permanent magnet.
Description
Technical Field
The invention relates to the field of rare earth permanent magnet motors, in particular to a turbine heat dissipation type permanent magnet motor rotor.
Background
The motor generally comprises a rotor, a stator, a rotating shaft, a cooling fan and a casing. The motor is used for realizing the conversion of electric energy and mechanical energy and electric energy, and in the working process of the motor, the rotor can rotate at a high speed to generate heat. If the generated heat is not discharged out of the motor cavity in time, the temperature of the motor cavity is overhigh, the permanent magnet on the rotor is demagnetized, and the service life of the motor is shortened.
The existing motor mainly utilizes a cooling fan to lead out heat in the motor, and the cooling fan is mainly arranged on a motor end cover or fixed at one end of a rotating shaft and needs to occupy the installation space of the motor. And rotor core is solid generally, and the permanent magnet adhesion or utilize the installed part installation to be fixed in rotor core on, be unfavorable for the inside heat dissipation of permanent magnet and rotor core.
Disclosure of Invention
The invention aims to provide a turbine heat dissipation type permanent magnet motor rotor, which changes the structure of a rotor core and solves the problems that the internal heat dissipation efficiency of the permanent magnet motor rotor is low and the heat dissipation area is mainly limited on the surface of the rotor.
The technical problem of the invention is mainly solved by the following technical scheme: including the pivot, the cover has cup jointed the sleeve in the middle of the pivot, telescopic lateral wall is equipped with turbine fan blade, rotor core has been cup jointed in the sleeve outside, rotor core's both ends are fixed in through the end cover the sleeve, rotor core is unsettled to be fixed in telescopic periphery, rotor core with be formed with the wind channel between the sleeve, rotor core radially is equipped with the multiunit air vent, the air vent runs through rotor core, the wind channel passes through air vent and external intercommunication, rotor core equidistance is equipped with the multiunit permanent magnet, rotor core is in every group be equipped with the wall between the permanent magnet and keep apart.
Preferably, the rotor core is provided with a mounting groove, the permanent magnet is fixed in the mounting groove, the bottom of the mounting groove is provided with a plurality of groups of axial ventilation grooves, and the ventilation holes penetrate through the ventilation grooves. Wind generated by the turbine partially enters the vent holes and then is exhausted from the vent grooves, and heat in the rotor core and heat at the bottoms of the permanent magnets can be exhausted in the process.
Preferably, the end cover is provided with a through hole, and the through hole is communicated with the air duct. Therefore, the air duct is prevented from being blocked by the end cover, and the wind power generated by the turbine in the air duct can axially circulate.
The invention has the beneficial effects that: the mode that rotor core direct mount changes in the pivot is equipped with the sleeve of taking the turbofan between rotor core and pivot, and degree of depth development rotor core inner space utilization value for the rotor just can produce the wind-force of dispelling the heat in the rotation in-process is inside, thereby improves rotor radiating efficiency, avoids the overheated permanent magnet magnetic force of influence of rotor.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a cross-sectional top view of the present invention;
description of reference numerals:
1. the structure of the wind turbine comprises a rotating shaft, 2. a sleeve, 3. turbine blades, 4. a rotor core, 401. a partition, 402. a mounting groove, 5. a ventilation groove, 6. a ventilation hole, 7. a permanent magnet, 8. an end cover, 801. a through hole and 9. an air channel.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1
The turbine heat dissipation type permanent magnet motor rotor of this embodiment, including pivot 1, sleeve 2 has been cup jointed in the middle of the pivot 1, sleeve 2's lateral wall is equipped with turbine fan blade 3, rotor core 4 has been cup jointed in the sleeve 2 outside, rotor core 4's both ends are fixed in sleeve 2 through end cover 8, rotor core 4 is unsettled to be fixed in sleeve 2's periphery, rotor core 4 and sleeve 2 are formed with wind channel 9 within a definite time, rotor core 4 radially is equipped with multiunit air vent 6, air vent 6 runs through rotor core 4, wind channel 9 passes through air vent 6 and external intercommunication, rotor core 4 wait the angle be equipped with multiunit permanent magnet 7, rotor core 4 is equipped with between every permanent magnet 7 and cuts off 401 and keeps.
Wherein, rotor core 4 of this embodiment is equipped with mounting groove 402, and permanent magnet 7 adhesion is fixed in mounting groove 402, and mounting groove 402 bottom is equipped with the axial ventilation groove 5 of multiunit, and ventilation hole 6 passes ventilation groove 5. Wind generated by the turbine partially enters the ventilation holes 6 and is then discharged from the ventilation slots 5, and heat inside the rotor core 4 and at the bottom of the permanent magnets 7 can be discharged in the process.
Wherein, the end cover 8 is provided with a through hole 801, and the through hole 801 is communicated with the air duct 9. Thereby avoiding the wind channel 9 being blocked by the end cover 8, and enabling the wind force generated by the turbine in the wind channel 9 to circulate in the axial direction.
Meanwhile, as the turbine fan blades 3 are arranged on the inner side of the rotor core 4, the inner space of the rotor core 4 is fully utilized, the heat dissipation effect is from inside to outside, and when the motor is assembled better than the motor which is blown and dissipated by the single-side outer surface, a heat dissipation fan can be selected not to be additionally installed.
In addition, the permanent magnets 7 may be fixed to the rotor core 4 in other manners. For example, permanent magnet 7 is embedded in rotor core 4, or permanent magnet 7 is fixed to rotor core 4 by using a connecting member.
While the foregoing embodiments are illustrative of the present invention, various modifications and changes may be readily made by those skilled in the art based upon the teachings and principles of this invention, which are intended to be limited not to the details of construction and methods herein shown, but rather to the preferred embodiments described, and therefore all equivalent modifications and changes in light of the above teachings are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (3)
1. The utility model provides a turbine heat dissipation type permanent magnet motor rotor, includes pivot (1), its characterized in that, sleeve (2) have been cup jointed in the middle of pivot (1), the lateral wall of sleeve (2) is equipped with turbine fan blade (3), rotor core (4) have been cup jointed in the sleeve (2) outside, the both ends of rotor core (4) are fixed in through end cover (8) sleeve (2), rotor core (4) unsettled be fixed in the periphery of sleeve (2), rotor core (4) with be formed with wind channel (9) between sleeve (2), rotor core (4) radially are equipped with multiunit air vent (6), air vent (6) run through rotor core (4), wind channel (9) pass through air vent (6) and external intercommunication, rotor core (4) equidirectional angle is equipped with multiunit permanent magnet (7), and partitions (401) are arranged between each group of permanent magnets (7) of the rotor core (4) for isolation.
2. The turbine heat dissipation type permanent magnet motor rotor as recited in claim 1, wherein the rotor core (4) is provided with a mounting groove (402), the permanent magnet (7) is fixed to the mounting groove (402), the bottom of the mounting groove (402) is provided with a plurality of sets of axial ventilation grooves (5), and the ventilation holes (6) penetrate through the ventilation grooves (5).
3. The turbine heat dissipation type permanent magnet motor rotor as recited in claim 1, wherein the end cover (8) is provided with a through hole (801), and the through hole (801) is communicated with the air duct (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296818.4A CN112366865A (en) | 2020-11-18 | 2020-11-18 | Turbine heat dissipation type permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011296818.4A CN112366865A (en) | 2020-11-18 | 2020-11-18 | Turbine heat dissipation type permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112366865A true CN112366865A (en) | 2021-02-12 |
Family
ID=74533235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011296818.4A Withdrawn CN112366865A (en) | 2020-11-18 | 2020-11-18 | Turbine heat dissipation type permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112366865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116961285A (en) * | 2023-07-25 | 2023-10-27 | 金华江科动力有限公司 | Permanent magnet motor |
-
2020
- 2020-11-18 CN CN202011296818.4A patent/CN112366865A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116961285A (en) * | 2023-07-25 | 2023-10-27 | 金华江科动力有限公司 | Permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210212 |
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| WW01 | Invention patent application withdrawn after publication |