CN105871136A - Production method of invisible magnetic pole and hub drive motor rotor provided with built-in permanent magnet steel - Google Patents
Production method of invisible magnetic pole and hub drive motor rotor provided with built-in permanent magnet steel Download PDFInfo
- Publication number
- CN105871136A CN105871136A CN201610314128.4A CN201610314128A CN105871136A CN 105871136 A CN105871136 A CN 105871136A CN 201610314128 A CN201610314128 A CN 201610314128A CN 105871136 A CN105871136 A CN 105871136A
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- rectangular
- magnet steel
- rotor
- slot
- outer end
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention provides a production method of an invisible magnetic pole and a hub drive motor rotor provided with built-in permanent magnet steel and belongs to the field of electric car motor electrical appliances. Rectangular permanent magnet steel is built in a first rectangular groove and a second rectangular groove of a rotor core respectively, the structure is a rotor magnetic bypass structure, the problem that the permanent magnet steel produces irreversible demagnetization under the armature reaction effect of impulse current can be effectively prevented, the permanent magnet steel can be ensured not to lose magnetism, at the same time, the magnetic field of the hub drive motor rotor is provided by the permanent magnet steel, no electrical excitation winding is required, the electrical energy consumption is low, no carbon brush or mechanical commutator exists, the fault rate is low, the structure is compact, and the working is reliable.
Description
Technical field
The present invention provides a kind of hidden magnetic pole and built-in permanent-magnet steel hub driven motor method for production of rotor, belongs to electric motor of automobile technical field of electric appliances.
Background technology
nullThe production method of the permanent magnet drive motor rotor used on electric automobile at present uses the outer damascene structures of permanent magnet mostly，Such as prior art，Patent name: brushless DC motor rotor，The patent No.: ZL200920116549.1，Disclose following technical scheme，Including rotor core、Rotating shaft and permanent magnet，Rotor core is made up of punching superposition and is connected，Rotating shaft is fixing with rotor core to be connected，The outer surface of rotor core is evenly distributed with even number T-shaped voussoir，Slot is constituted between adjacent T-shaped voussoir，Permanent magnet correspondence is embedded in slot，The permanent magnet of this construction rotor is directly facing air gap，Under the armature-reaction effect of dash current，Irreversible demagnetization may be produced，Permanent magnet once forms irreversible demagnetization，Driving electric efficiency reduces、Power、Moment of torsion declines rapidly，Its serviceability needs further improvement.
Summary of the invention
It is an object of the invention to provide one and can overcome drawbacks described above, rectangle permanent-magnet steel is embedded in the first rectangular slot and second rectangular slot of rotor core respectively, this structure is rotor magnetic bypass structure, can effectively prevent permanent-magnet steel from producing irreversible demagnetization problem under the armature-reaction effect of dash current, ensureing the hidden magnetic pole of permanent-magnet steel not loss of excitation and built-in permanent-magnet steel hub driven motor method for production of rotor, its technology contents is:
nullHidden magnetic pole and built-in permanent-magnet steel hub driven motor method for production of rotor，It is characterized in that: punching annular rotor punching，It is evenly equipped with on rotor punching and multiple runs through rotor punching thickness and the positive "eight" shape groove formed by two the first rectangular slots，It is provided with, in the middle of the outer end of the positive "eight" shape groove of two the first rectangular slot formation, the inverted "eight" shape groove running through rotor punching thickness and being formed by two the second rectangular slots，There is the not connected component of 1.5mm the inner of two the second rectangular slots of inverted "eight" shape groove formed，The inner edge of the first rectangular slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between the inner and the inner circle of rotor punching of the first rectangular slot，The outside of each first rectangular slot is straight line，The first rectangular channel running through rotor punching thickness it is provided with in the outer end of each first rectangular slot，The outer end of the first rectangular slot connects with the inner of the first rectangular channel，The length 0.6mm less than the width of the first rectangular slot of the first rectangular channel，The width of the first rectangular channel is 1mm，The inner edge of each second rectangular slot is dome arc，The sagitta of dome arc is 1mm，The outside of each second rectangular slot is straight line，The second rectangular channel running through rotor punching thickness it is provided with in the outer end of each second rectangular slot，The inner of second rectangular channel connects with the outer end of the second rectangular slot，The length 0.6mm less than the width of the second rectangular slot of the second rectangular channel，The width of the second rectangular channel is 1mm，The arc-shaped slot running through rotor punching thickness jointly it is provided with in the outer end of the outer end of each first rectangular channel and the second adjacent rectangular channel，The inner of arc-shaped slot all connects with the outer end of the first rectangular channel and the outer end of the second rectangular channel，The not connected component of 3mm is had between outer end and the cylindrical of rotor punching of arc-shaped slot，Adjacent arc-shaped slot does not connects，Arc-shaped slot as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，W type groove is had on rotor punching cylindrical，Rotor punching is laminated by burr mode in one direction，The mode using argon arc welding welds the mid portion laminating rear rotor punching W type groove，Form rotor core；
nullIn identical two panels the first rectangle permanent-magnet steel is respectively placed at the positive "eight" shape groove formed by two the first rectangular slots of rotor core and the inner side of positive "eight" shape that formed of two panels the first rectangle permanent-magnet steel is N pole，In the inverted "eight" shape groove formed by two the second rectangular slots be respectively placed at identical two panels the second rectangle permanent-magnet steel on rotor core and the outside of inverted "eight" shape that formed of two panels the second rectangle permanent-magnet steel is N pole，The S pole of the first rectangle permanent-magnet steel and the S of the second rectangle permanent-magnet steel are the most all guided to by rotor core on the rotor core of mid portion of the positive "eight" shape groove that adjacent two are formed by two the first rectangular slots，Form the S pole of hidden magnetic pole，Rotor core is fixed in the inner circle of hub-type casing，Complete the assembling of hidden magnetic pole and built-in permanent-magnet steel hub driven motor rotor.
The present invention is compared with prior art, rectangle permanent-magnet steel is embedded in the first rectangular slot and second rectangular slot of rotor core respectively, this structure is rotor magnetic bypass structure, can effectively prevent the problem that permanent-magnet steel produces irreversible demagnetization under the armature-reaction effect of dash current, it is ensured that permanent-magnet steel not loss of excitation, wheel hub drives rotor magnetic field to be provided by permanent-magnet steel simultaneously, few without electrical excitation winding, power consumption, non-carbonate and mechanical commutator, failure rate is low, compact conformation, reliable operation.
Accompanying drawing explanation
Fig. 1 is the production process flow chart of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
nullHidden magnetic pole and built-in permanent-magnet steel hub driven motor method for production of rotor，It is characterized in that: punching annular rotor punching，It is evenly equipped with on rotor punching and multiple runs through rotor punching thickness and the positive "eight" shape groove formed by two the first rectangular slots，It is provided with, in the middle of the outer end of the positive "eight" shape groove of two the first rectangular slot formation, the inverted "eight" shape groove running through rotor punching thickness and being formed by two the second rectangular slots，There is the not connected component of 1.5mm the inner of two the second rectangular slots of inverted "eight" shape groove formed，The inner edge of the first rectangular slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between the inner and the inner circle of rotor punching of the first rectangular slot，The outside of each first rectangular slot is straight line，The first rectangular channel running through rotor punching thickness it is provided with in the outer end of each first rectangular slot，The outer end of the first rectangular slot connects with the inner of the first rectangular channel，The length 0.6mm less than the width of the first rectangular slot of the first rectangular channel，The width of the first rectangular channel is 1mm，The inner edge of each second rectangular slot is dome arc，The sagitta of dome arc is 1mm，The outside of each second rectangular slot is straight line，The second rectangular channel running through rotor punching thickness it is provided with in the outer end of each second rectangular slot，The inner of second rectangular channel connects with the outer end of the second rectangular slot，The length 0.6mm less than the width of the second rectangular slot of the second rectangular channel，The width of the second rectangular channel is 1mm，The arc-shaped slot running through rotor punching thickness jointly it is provided with in the outer end of the outer end of each first rectangular channel and the second adjacent rectangular channel，The inner of arc-shaped slot all connects with the outer end of the first rectangular channel and the outer end of the second rectangular channel，The not connected component of 3mm is had between outer end and the cylindrical of rotor punching of arc-shaped slot，Adjacent arc-shaped slot does not connects，Arc-shaped slot as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，W type groove is had on rotor punching cylindrical，Rotor punching is laminated by burr mode in one direction，The mode using argon arc welding welds the mid portion laminating rear rotor punching W type groove，Form rotor core；
nullIn identical two panels the first rectangle permanent-magnet steel is respectively placed at the positive "eight" shape groove formed by two the first rectangular slots of rotor core and the inner side of positive "eight" shape that formed of two panels the first rectangle permanent-magnet steel is N pole，In the inverted "eight" shape groove formed by two the second rectangular slots be respectively placed at identical two panels the second rectangle permanent-magnet steel on rotor core and the outside of inverted "eight" shape that formed of two panels the second rectangle permanent-magnet steel is N pole，The S pole of the first rectangle permanent-magnet steel and the S of the second rectangle permanent-magnet steel are the most all guided to by rotor core on the rotor core of mid portion of the positive "eight" shape groove that adjacent two are formed by two the first rectangular slots，Form the S pole of hidden magnetic pole，Rotor core is fixed in the inner circle of hub-type casing，Complete the assembling of hidden magnetic pole and built-in permanent-magnet steel hub driven motor rotor.
Claims (1)
- null1. a hidden magnetic pole and built-in permanent-magnet steel hub driven motor method for production of rotor，It is characterized in that: punching annular rotor punching，It is evenly equipped with on rotor punching and multiple runs through rotor punching thickness and the positive "eight" shape groove formed by two the first rectangular slots，It is provided with, in the middle of the outer end of the positive "eight" shape groove of two the first rectangular slot formation, the inverted "eight" shape groove running through rotor punching thickness and being formed by two the second rectangular slots，There is the not connected component of 1.5mm the inner of two the second rectangular slots of inverted "eight" shape groove formed，The inner edge of the first rectangular slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between the inner and the inner circle of rotor punching of the first rectangular slot，The outside of each first rectangular slot is straight line，The first rectangular channel running through rotor punching thickness it is provided with in the outer end of each first rectangular slot，The outer end of the first rectangular slot connects with the inner of the first rectangular channel，The length 0.6mm less than the width of the first rectangular slot of the first rectangular channel，The width of the first rectangular channel is 1mm，The inner edge of each second rectangular slot is dome arc，The sagitta of dome arc is 1mm，The outside of each second rectangular slot is straight line，The second rectangular channel running through rotor punching thickness it is provided with in the outer end of each second rectangular slot，The inner of second rectangular channel connects with the outer end of the second rectangular slot，The length 0.6mm less than the width of the second rectangular slot of the second rectangular channel，The width of the second rectangular channel is 1mm，The arc-shaped slot running through rotor punching thickness jointly it is provided with in the outer end of the outer end of each first rectangular channel and the second adjacent rectangular channel，The inner of arc-shaped slot all connects with the outer end of the first rectangular channel and the outer end of the second rectangular channel，The not connected component of 3mm is had between outer end and the cylindrical of rotor punching of arc-shaped slot，Adjacent arc-shaped slot does not connects，Arc-shaped slot as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，W type groove is had on rotor punching cylindrical，Rotor punching is laminated by burr mode in one direction，The mode using argon arc welding welds the mid portion laminating rear rotor punching W type groove，Form rotor core；nullIn identical two panels the first rectangle permanent-magnet steel is respectively placed at the positive "eight" shape groove formed by two the first rectangular slots of rotor core and the inner side of positive "eight" shape that formed of two panels the first rectangle permanent-magnet steel is N pole，In the inverted "eight" shape groove formed by two the second rectangular slots be respectively placed at identical two panels the second rectangle permanent-magnet steel on rotor core and the outside of inverted "eight" shape that formed of two panels the second rectangle permanent-magnet steel is N pole，The S pole of the first rectangle permanent-magnet steel and the S of the second rectangle permanent-magnet steel are the most all guided to by rotor core on the rotor core of mid portion of the positive "eight" shape groove that adjacent two are formed by two the first rectangular slots，Form the S pole of hidden magnetic pole，Rotor core is fixed in the inner circle of hub-type casing，Complete the assembling of hidden magnetic pole and built-in permanent-magnet steel hub driven motor rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314128.4A CN105871136A (en) | 2016-05-13 | 2016-05-13 | Production method of invisible magnetic pole and hub drive motor rotor provided with built-in permanent magnet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314128.4A CN105871136A (en) | 2016-05-13 | 2016-05-13 | Production method of invisible magnetic pole and hub drive motor rotor provided with built-in permanent magnet steel |
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| CN105871136A true CN105871136A (en) | 2016-08-17 |
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| CN201610314128.4A Pending CN105871136A (en) | 2016-05-13 | 2016-05-13 | Production method of invisible magnetic pole and hub drive motor rotor provided with built-in permanent magnet steel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684439A (en) * | 2012-06-11 | 2012-09-19 | 中国矿业大学 | Reverse salient pole permanent magnet synchronous motor |
| CN103607081A (en) * | 2013-12-05 | 2014-02-26 | 山东理工大学 | Electromagnetism and permanent magnet invisible magnetic pole generator rotor assembling method |
| CN103887948A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Built-in permanent magnet steel hub driving motor of electric vehicle |
| CN103887946A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Invisible magnetic pole hub motor of electric vehicle |
-
2016
- 2016-05-13 CN CN201610314128.4A patent/CN105871136A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684439A (en) * | 2012-06-11 | 2012-09-19 | 中国矿业大学 | Reverse salient pole permanent magnet synchronous motor |
| CN103607081A (en) * | 2013-12-05 | 2014-02-26 | 山东理工大学 | Electromagnetism and permanent magnet invisible magnetic pole generator rotor assembling method |
| CN103887948A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Built-in permanent magnet steel hub driving motor of electric vehicle |
| CN103887946A (en) * | 2014-04-10 | 2014-06-25 | 山东理工大学 | Invisible magnetic pole hub motor of electric vehicle |
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Application publication date: 20160817 |