CN112583158A - Novel embedded structure built-in permanent magnet motor rotor core - Google Patents
Novel embedded structure built-in permanent magnet motor rotor core Download PDFInfo
- Publication number
- CN112583158A CN112583158A CN202011383907.2A CN202011383907A CN112583158A CN 112583158 A CN112583158 A CN 112583158A CN 202011383907 A CN202011383907 A CN 202011383907A CN 112583158 A CN112583158 A CN 112583158A
- Authority
- CN
- China
- Prior art keywords
- rotor core
- permanent magnet
- magnet motor
- groove
- motor rotor
- 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.)
- Pending
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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
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a novel embedded structure built-in permanent magnet motor rotor core, which belongs to the technical field of motor rotor cores and comprises a rotor core, wherein a plurality of magnetic steel grooves are uniformly arranged at positions close to the edge in the rotor core, an embedding groove is arranged in the middle of each magnetic steel groove, an embedding piece is embedded in the middle of each embedding groove, a fixing hole is formed in the middle of the rotor core, and a heat dissipation groove hole is uniformly formed in the surface of the rotor core. The rotor core is made of the insert made of the non-magnetic material as the reinforcing rib, the insert is designed to be I-shaped, the surface of the rotor core is positioned in the middle of the magnetic steel groove, the insert is inserted into the insert groove and well integrated into the whole structure of the rotor core, the rotor core is quickly fixed, the distribution of a magnetic circuit is basically not influenced, the rotor core can operate at a high rotating speed, and the core is not easy to deform or damage and is portable in use.
Description
Technical Field
The invention belongs to the technical field of motor rotor cores, and particularly relates to a novel embedded structure built-in permanent magnet motor rotor core.
Background
In order to meet the requirement of high-rotating-speed operation, the built-in permanent magnet motor needs to accurately calculate stress and deformation caused by centrifugal force when a rotor core is designed, and the motor rotor is prevented from being damaged due to overlarge centrifugal force. Therefore, one or more reinforcing ribs can be designed at the middle part of each magnetic pole of the rotor core to improve the safety and reliability of the whole rotor core, but the occurrence of the reinforcing ribs can provide a passage for the leakage flux of the magnetic pole, so that the leakage flux of the magnetic pole part is increased, and the performance of the motor is weakened to a certain extent.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a novel embedded structure built-in permanent magnet motor rotor iron core which has the characteristics of simple structure and difficult deformation and damage of the iron core.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel built-in permanent magnet motor rotor core of mosaic structure, includes rotor core, rotor core's inside is close to border position and evenly is provided with a plurality of magnet steel grooves, the centre in magnet steel groove is provided with the caulking groove, the centre embedding of caulking groove has the inserts, rotor core's centre is provided with the fixed orifices, rotor core's surface evenly is provided with the heat dissipation slotted hole.
Preferably, eight groups of empty slots are uniformly arranged on the surface of the rotor core.
Preferably, two ends of the fixing hole are provided with symmetrical fixing lugs.
Preferably, the magnetic steel groove is arranged in a V-shaped structure.
Preferably, the rotor core is a stamped silicon steel sheet structure.
Preferably, the insert is of an I-shaped structure.
Preferably, the insert is connected with the caulking groove in a clamping mode.
Preferably, the heat dissipation slotted holes are uniformly distributed around the empty slots and the magnetic steel slots.
Compared with the prior art, the invention has the beneficial effects that:
the rotor core is made of the insert made of the non-magnetic material as the reinforcing rib, the insert is designed to be I-shaped, the surface of the rotor core is positioned in the middle of the magnetic steel groove, the insert is inserted into the insert groove and well integrated into the whole structure of the rotor core, the rotor core is quickly fixed, the distribution of a magnetic circuit is basically not influenced, the rotor core can operate at a high rotating speed, and the core is not easy to deform or damage and is portable in use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a rotor core structure according to the present invention;
FIG. 3 is a schematic view of an insert structure of the present invention;
in the figure: 1. a rotor core; 2. an insert; 3. a fixing hole; 4. an empty groove; 5. a heat dissipation slot; 6. fixing the bump; 7. a magnetic steel groove; 8. and (4) caulking grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a novel built-in permanent magnet motor rotor core of mosaic structure, includes rotor core 1, and rotor core 1's inside is close to border position and evenly is provided with a plurality of magnet steel grooves 7, and the centre of magnet steel groove 7 is provided with caulking groove 8, and the centre embedding of caulking groove 8 has inserts 2, and rotor core 1's centre is provided with fixed orifices 3, and rotor core 1's surface evenly is provided with heat dissipation slotted hole 5.
Specifically, eight groups of empty slots 4 are uniformly arranged on the surface of the rotor core 1,
through adopting above-mentioned technical scheme, conveniently carry out spacing and heat dissipation.
Specifically, two ends of the fixing hole 3 are provided with symmetrical fixing lugs 6,
through adopting above-mentioned technical scheme, conveniently fix.
Specifically, the magnetic steel groove 7 is arranged in a V-shaped structure,
by adopting the technical scheme, the number is increased.
Specifically, the rotor core 1 is a stamped silicon steel sheet structure,
through adopting above-mentioned technical scheme, improve structural stability.
In particular, the insert 2 is in an I-shaped structure,
through adopting above-mentioned technical scheme, conveniently carry out spacing fixed.
In particular, the insert 2 is clamped and connected with the caulking groove 8,
through adopting above-mentioned technical scheme, conveniently carry out quick fixed.
Specifically, the heat dissipation slot holes 5 are uniformly distributed around the empty slots 4 and the magnetic steel slots 7,
by adopting the technical scheme, the number of the heat dissipation slotted holes 5 is increased, the heat dissipation slotted holes are uniformly distributed, and the heat dissipation effect is improved.
The working principle and the using process of the invention are as follows: according to the invention, the rotor core 1 adopts the insert 2 made of non-magnetic materials as the reinforcing rib, the insert 2 is designed to be I-shaped, the surface of the rotor core 1 is provided with the caulking groove 8 in the middle of the magnetic steel groove 7, the insert 2 is inserted into the caulking groove 8 and well integrated into the whole structure of the rotor core 1, the fixation is fast, the magnetic circuit distribution is basically not influenced, the rotor core 1 can operate at high rotating speed, and the core is not easy to deform or damage and is portable in use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a novel built-in permanent-magnet machine rotor core of mosaic structure, includes rotor core (1), its characterized in that: the utility model discloses a rotor core's structure, including rotor core (1), the inside of rotor core (1) is close to border position and evenly is provided with a plurality of magnet steel groove (7), the centre of magnet steel groove (7) is provided with caulking groove (8), the centre embedding of caulking groove (8) has inserts (2), the centre of rotor core (1) is provided with fixed orifices (3), the surface of rotor core (1) evenly is provided with heat dissipation slotted hole (5).
2. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: eight groups of empty grooves (4) are uniformly formed in the surface of the rotor core (1).
3. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: and two ends of the fixing hole (3) are provided with symmetrical fixing lugs (6).
4. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: the magnetic steel groove (7) is of a V-shaped structure.
5. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: the rotor iron core (1) is of a stamped silicon steel sheet structure.
6. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: the insert (2) is of an I-shaped structure.
7. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: the insert (2) is connected with the caulking groove (8) in a clamping manner.
8. The novel mosaic structure built-in permanent magnet motor rotor core of claim 1, characterized in that: the heat dissipation slotted holes (5) are uniformly distributed on the periphery of the empty slots (4) and the magnetic steel slots (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383907.2A CN112583158A (en) | 2020-11-30 | 2020-11-30 | Novel embedded structure built-in permanent magnet motor rotor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011383907.2A CN112583158A (en) | 2020-11-30 | 2020-11-30 | Novel embedded structure built-in permanent magnet motor rotor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112583158A true CN112583158A (en) | 2021-03-30 |
Family
ID=75126564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011383907.2A Pending CN112583158A (en) | 2020-11-30 | 2020-11-30 | Novel embedded structure built-in permanent magnet motor rotor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112583158A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203632391U (en) * | 2013-12-26 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Rotor silicon steel sheet structure |
| CN206117455U (en) * | 2016-10-13 | 2017-04-19 | 上海大郡动力控制技术有限公司 | A towards chip architecture for high -speed PMSM rotor |
| CN107492964A (en) * | 2017-09-25 | 2017-12-19 | 北京首钢股份有限公司 | A kind of high rotating speed built-in rotor structure of permanent-magnet motor |
| CN210201568U (en) * | 2019-07-04 | 2020-03-27 | 江苏力信电气技术有限公司 | Permanent magnet motor rotor structure |
| CN210577990U (en) * | 2019-09-03 | 2020-05-19 | 中克骆瑞新能源科技有限公司 | Rotor punching sheet of permanent magnet synchronous motor |
-
2020
- 2020-11-30 CN CN202011383907.2A patent/CN112583158A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203632391U (en) * | 2013-12-26 | 2014-06-04 | 安徽江淮汽车股份有限公司 | Rotor silicon steel sheet structure |
| CN206117455U (en) * | 2016-10-13 | 2017-04-19 | 上海大郡动力控制技术有限公司 | A towards chip architecture for high -speed PMSM rotor |
| CN107492964A (en) * | 2017-09-25 | 2017-12-19 | 北京首钢股份有限公司 | A kind of high rotating speed built-in rotor structure of permanent-magnet motor |
| CN210201568U (en) * | 2019-07-04 | 2020-03-27 | 江苏力信电气技术有限公司 | Permanent magnet motor rotor structure |
| CN210577990U (en) * | 2019-09-03 | 2020-05-19 | 中克骆瑞新能源科技有限公司 | Rotor punching sheet of permanent magnet synchronous motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |