CN111181334A - Glue pouring method for permanent magnet synchronous motor rotor - Google Patents
Glue pouring method for permanent magnet synchronous motor rotor Download PDFInfo
- Publication number
- CN111181334A CN111181334A CN202010123169.1A CN202010123169A CN111181334A CN 111181334 A CN111181334 A CN 111181334A CN 202010123169 A CN202010123169 A CN 202010123169A CN 111181334 A CN111181334 A CN 111181334A
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- rotor
- rotor module
- magnetic steel
- module
- hole
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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
- H02K15/10—Applying solid insulation to windings, stators or rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
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- 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 discloses a glue filling method for a permanent magnet synchronous motor rotor, which comprises a rotor core, wherein the rotor core is formed by rotationally assembling a plurality of rotor modules, a plurality of magnetic steel groove structures are uniformly distributed in the circumferential direction of the rotor modules and are positioned inside the rotor modules, the magnetic steel groove structures comprise large magnetic steel grooves and two large magnetism isolating grooves, the large magnetic steel grooves are positioned between the two large magnetism isolating grooves, magnetic bridges are arranged between the large magnetic steel grooves and the two large magnetism isolating grooves, and large magnetic steel is inserted into the large magnetic steel grooves; the glue pouring method comprises the following steps: sequentially rotating and stacking a plurality of rotor modules from bottom to top to enable the large magnetism isolating grooves of the rotor modules to be communicated with the large magnetic steel grooves of the adjacent rotor modules; and (5) pouring glue into the large magnetism isolating groove of the rotor module positioned at the top. The invention can improve the production efficiency, improve the material utilization rate and reduce the cost. The motor performance can be optimized.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a permanent magnet synchronous motor rotor glue pouring method.
Background
The rotor core is used as a vital part of the motor, plays a role in conducting magnetism and connecting with a rotating shaft, and is used as a power source of various machines to convert electric energy into mechanical energy. The existing rotor glue filling process only can fill glue for one rotor module independently, and is low in efficiency. One rotor module is filled to generate one-time waste, and the material utilization rate is low. And in order to satisfy the encapsulating, need add encapsulating mouth 1 near big magnet steel groove 2, as shown in fig. 1, this kind of structural design of encapsulating mouth 1 can influence some motor performance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a permanent magnet synchronous motor rotor glue pouring method aiming at the defects of the prior art, and the permanent magnet synchronous motor rotor glue pouring method can improve the production efficiency, improve the material utilization rate and reduce the cost. The motor performance can be optimized.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a glue pouring method for a permanent magnet synchronous motor rotor comprises a rotor core, wherein the rotor core is formed by rotating and assembling a plurality of rotor modules, a plurality of magnetic steel groove structures are uniformly distributed in the circumferential direction of the rotor modules and are positioned inside the rotor modules, each magnetic steel groove structure comprises a large magnetic steel groove and two large magnetism isolating grooves, the large magnetic steel groove is positioned between the two large magnetism isolating grooves, magnetic bridges are arranged between the large magnetic steel groove and the two large magnetism isolating grooves, and large magnetic steel is inserted into the large magnetic steel groove;
the glue pouring method comprises the following steps: sequentially rotating and stacking a plurality of rotor modules from bottom to top to enable the large magnetism isolating grooves of the rotor modules to be communicated with the large magnetic steel grooves of the adjacent rotor modules; and (5) pouring glue into the large magnetism isolating groove of the rotor module positioned at the top.
As a further improved technical scheme of the invention, the number of the magnetic steel groove structures is 8.
As a further improved technical scheme of the invention, four first holes are uniformly distributed in the circumferential direction of the rotor module, four pairs of communicating holes are uniformly distributed in the circumferential direction of the rotor module, the first holes and the pairs of communicating holes are arranged at intervals, a magnetic steel slot structure is arranged between the first holes and the pairs of communicating holes, the pairs of communicating holes comprise a second hole and a third hole which are communicated with each other, the first holes, the second holes and the third holes are sequentially and clockwise arranged on the circumferential end surface of the rotor module, and the circumferential end surface is the front surface of the rotor module; the included angle between the center of the first hole and the center of the large magnetic steel groove adjacent to one side of the first hole is 22.5 degrees, the included angle between the center of the large magnetic steel groove and the center of the second hole adjacent to one side of the large magnetic steel groove is 21 degrees, and the included angle between the center of the second hole and the center of the third hole adjacent to the second hole is 4.5 degrees.
As a further improved technical scheme of the invention, the number of the rotor modules is 5, and the rotor modules are respectively a rotor module I, a rotor module II, a rotor module III, a rotor module IV and a rotor module V; and when the front surface of the rotor module is placed upwards, the mark slot is positioned between the middle part of one of the magnetic steel slot structures and the left end of the magnetic steel slot structure.
The glue pouring method specifically comprises the following steps:
(1) placing a front side of the rotor module upwards;
(2) placing the reverse side of the rotor module II upwards, aligning the hole II of the rotor module II with the hole III of the rotor module I, and placing the rotor module II on the rotor module I;
(3) placing the reverse side of the rotor module III upwards, aligning the hole I of the rotor module III with the hole II of the rotor module II and placing the rotor module III on the rotor module II;
(4) the front face of the rotor module IV is placed upwards, the hole II of the rotor module IV is aligned with the hole I of the rotor module III, and the rotor module IV is placed on the rotor module III;
(5) placing the reverse side of the rotor module V upwards, aligning the hole III of the rotor module V with the hole II of the rotor module IV and placing the rotor module V on the rotor module IV;
(6) and pressing the rotor module I, the rotor module II, the rotor module III, the rotor module IV and the rotor module V together by using a tool, and pouring glue into each large magnetism isolating groove of the rotor module V to finish the glue pouring process.
As a further improved technical scheme of the invention, the magnetic steel groove structure also comprises a small magnetic steel groove which is positioned outside the large magnetic steel groove, two sides of the small magnetic steel groove are both provided with small magnetism isolating grooves, and small magnetic steel is inserted into the small magnetic steel groove;
the step (5) of the glue filling method further comprises the following steps:
and (5) pouring glue into the small magnetism isolating grooves on two sides of the small magnetic steel groove of the rotor module V.
As a further improved technical scheme of the invention, the rotor module is formed by laminating and riveting a plurality of rotor punching sheets.
The invention has the beneficial effects that: compared with the prior art, the rotor glue filling process is optimized, a plurality of rotor modules can be filled with glue together, and the efficiency is higher. Several rotor modules are filled with glue together, only once waste is generated, and the material utilization rate is higher. And through oblique pole assembly, on the one hand, the cogging torque of the motor is optimized, the performance of the motor is better, and meanwhile, the design that a glue filling opening is added on a large magnetic steel slot is not needed.
Drawings
Fig. 1 is a schematic structural diagram of a rotor sheet in the prior art.
Fig. 2 is a schematic structural diagram of a rotor sheet according to the present embodiment.
Fig. 3 is a schematic view illustrating placement of the first rotor module according to the present embodiment.
Fig. 4 is a schematic view illustrating placement of a second rotor module according to the present embodiment.
Fig. 5 is a schematic view of the placement of a third rotor module according to the present embodiment.
Fig. 6 is a schematic view illustrating placement of a rotor module four according to the present embodiment.
FIG. 7 is a schematic view of the rotor module V of the present embodiment
Fig. 8 is a schematic view of the five rotor modules of the present embodiment being assembled by rotation.
Detailed Description
The following further describes embodiments of the present invention with reference to fig. 1 to 8:
the utility model provides a permanent magnet synchronous motor rotor, includes rotor core, rotor core is formed by 5 rotatory equipment of rotor module, rotor module is formed by a plurality of rotor punching stack rivets, and the structure of rotor punching is as shown in figure 2. The rotor module is characterized in that 8 magnetic steel groove structures and magnetic steel groove structures are evenly distributed in the circumferential direction of the rotor module and are located inside the rotor module, each magnetic steel groove structure comprises a large magnetic steel groove 2 and two large magnetism isolating grooves 3, each large magnetic steel groove 2 is located between the two large magnetism isolating grooves 3, a magnetic bridge is arranged between each large magnetic steel groove 2 and the two large magnetism isolating grooves 3, and large magnetic steel is inserted into each large magnetic steel groove 2. The magnetic steel groove structure further comprises a small magnetic steel groove 4 and the small magnetic steel groove 4 is located on the outer side of the large magnetic steel groove 2, the edge positions of two sides of the small magnetic steel groove 4 are communicated with a small magnetic isolation groove 5, and small magnetic steel is inserted into the small magnetic steel groove 4 (the small magnetic steel can be fixed and can be directly filled with glue in the small magnetic isolation groove 5).
The rotor module is characterized in that four first holes 6 are uniformly distributed in the circumferential direction of the rotor module, four pairs of communicating holes are uniformly distributed in the circumferential direction of the rotor module, the first holes 6 and the pairs of communicating holes are arranged at intervals, a magnetic steel slot structure is arranged between the first holes 6 and the pairs of communicating holes, the pairs of communicating holes comprise a second hole 7 and a third hole 8 which are communicated with each other, the first holes 6, the second holes 7 and the third holes 8 are sequentially and clockwise arranged on the circumferential end face of the rotor module, and the circumferential end face is the front face of the rotor module; the included angle between the center of the first hole 6 and the center of the large magnetic steel groove 2 adjacent to one side of the first hole is 22.5 degrees, the included angle between the center of the large magnetic steel groove and the center of the second hole 7 adjacent to one side of the large magnetic steel groove is 21 degrees, and the included angle between the center of the second hole 7 and the center of the third hole 8 adjacent to the second hole is 4.5 degrees.
The number of the rotor modules is 5, and the rotor modules are respectively marked as a rotor module I, a rotor module II, a rotor module III, a rotor module IV and a rotor module V; the outer circumferential surface of the rotor module is provided with a mark groove 9, and when the front surface of the rotor module is placed upwards, the mark groove 9 is positioned between the middle part of one of the magnetic steel groove structures and the left end of the magnetic steel groove structure. The marking groove 9 helps the worker to distinguish the front and back of the rotor module when the worker assembles.
The glue pouring method of the permanent magnet synchronous motor rotor comprises the following steps: sequentially rotating and stacking 5 rotor modules from bottom to top to enable the large magnetism isolating grooves 3 of the rotor modules to be communicated with the large magnetic steel grooves 2 of the adjacent rotor modules; and glue is poured into the large magnetism isolating groove 3 of the rotor module positioned at the top.
The operation steps of the permanent magnet synchronous motor rotor glue filling of the embodiment specifically include:
(1) as shown in fig. 3, a front surface of the rotor module is placed upwards;
(2) as shown in fig. 4, the second rotor module is placed with its back side facing upward, the second hole 7 of the second rotor module is aligned with the third hole 8 of the first rotor module, and the second rotor module is placed on the first rotor module;
(3) as shown in fig. 5, the third rotor module is placed with its reverse side facing upward, the first hole 6 of the third rotor module is aligned with the second hole 7 of the second rotor module, and the third rotor module is placed on the second rotor module;
(4) as shown in fig. 6, the front face of the rotor module four is placed upwards, the hole two 7 of the rotor module four is aligned with the hole one 6 of the rotor module three, and the rotor module four is placed on the rotor module three;
(5) as shown in fig. 7, the reverse side of the rotor module five is placed upwards, the hole three 8 of the rotor module five is aligned with the hole two 7 of the rotor module four, and the rotor module five is placed on the rotor module four;
(6) and pressing the rotor module I, the rotor module II, the rotor module III, the rotor module IV and the rotor module V together by using a tool, pouring glue into the 16 large magnetism isolating grooves 3 of the rotor module V, pouring glue into the small magnetism isolating grooves 5 on two sides of each small magnetic steel groove 4 of the rotor module V, ensuring that the glue is filled in each large magnetism isolating groove 3 and each small magnetism isolating groove 5, and finishing the glue pouring process. And after the glue filling is finished, inserting double-end bolts into the hole III 8 of the rotor module V, the hole II 7 of the rotor module IV, the hole I6 of the rotor module III, the hole II 7 of the rotor module II and the hole III 8 of the rotor module I in sequence to finish the fixed connection of the five rotor modules.
When workers normally assemble the rotor modules, the rotor modules are stacked only in the mode that the first hole 6, the second hole 7 or the third hole 8 are aligned, and therefore the large magnetic steel slots 2 between two adjacent rotor modules are naturally staggered by 1.5 degrees.
The mark groove 9 of this embodiment is defined as a front surface as shown in fig. 2. The first rotor module is arranged in the front, the third hole 8 and the corresponding positions (namely black shadow parts) uniformly distributed on the circumference are used for installing the stud bolts 10, and the schematic diagram of the first rotor module is shown in fig. 3. The placing schematic diagram of the rotor module II is shown in fig. 4, the reverse side is placed, the large magnetic steel slot 2 of the rotor module II is not completely aligned with the large magnetic steel slot 2 of the rotor module I, namely, the large magnetic steel slot 2 of the rotor module II deflects 1.5 degrees relative to the large magnetic steel slot 2 of the rotor module I, and the holes II 7 of the rotor module II and the corresponding positions uniformly distributed on the circumference are used for mounting the studs 10. The third rotor module is placed on the reverse side of the third rotor module as shown in fig. 5, the large magnetic steel slot 2 of the third rotor module deflects 1.5 degrees relative to the large magnetic steel slot 2 of the second rotor module, and the first holes 6 of the third rotor module and the corresponding uniformly distributed positions on the circumference are used for mounting the studs 10. The schematic diagram of the placement of the rotor module IV is shown in FIG. 6, the rotor module IV is placed in the front, the large magnetic steel slot 2 of the rotor module IV deflects 1.5 degrees relative to the large magnetic steel slot 2 of the rotor module III, and the second holes 7 of the rotor module IV and the corresponding evenly distributed positions on the circumference are used for installing the stud bolts 10. The schematic diagram of the placement of the rotor module five is shown in fig. 7, the rotor module five is placed on the reverse side, the large magnetic steel slot 2 of the rotor module five deflects 1.5 degrees relative to the large magnetic steel slot 2 of the rotor module four, and the three holes 8 of the rotor module five and the corresponding evenly distributed positions on the circumference are used for installing the stud bolts 10. In the above-described assembly manner, an effect of 1.5 ° deflection of adjacent rotor modules is achieved. And the large magnetism isolating groove 3 of one rotor module is communicated with the large magnetic steel groove 2 of the next rotor module. And the small magnetic isolation grooves 5 of the rotor modules are communicated in sequence from top to bottom. Therefore, glue is filled in the large magnetism isolating groove 3 and the small magnetism isolating groove 5 of the uppermost rotor module, and the large magnetic steel and the small magnetic steel in each rotor module can be fixed.
As shown in fig. 8, the five rotor modules are assembled in a rotating manner, so that the large magnetism isolating groove 3 is communicated with the large magnetic steel groove 2 of the adjacent rotor module, and the large magnetism isolating groove 3 can be used as a glue filling port of large magnetic steel, so that the large magnetic steel does not need an independent glue filling port. And the cogging torque of the motor can be optimized through the rotary assembly, and the performance of the motor is improved.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.
Claims (6)
1. A permanent magnet synchronous motor rotor glue pouring method is characterized in that: the rotor core is formed by rotationally assembling a plurality of rotor modules, a plurality of magnetic steel groove structures are uniformly distributed in the circumferential direction of the rotor modules and are positioned inside the rotor modules, each magnetic steel groove structure comprises a large magnetic steel groove and two large magnetism isolating grooves, the large magnetic steel groove is positioned between the two large magnetism isolating grooves, magnetic bridges are arranged between the large magnetic steel groove and the two large magnetism isolating grooves, and large magnetic steel is inserted into the large magnetic steel groove;
the glue pouring method comprises the following steps: sequentially rotating and stacking a plurality of rotor modules from bottom to top to enable the large magnetism isolating grooves of the rotor modules to be communicated with the large magnetic steel grooves of the adjacent rotor modules; and (5) pouring glue into the large magnetism isolating groove of the rotor module positioned at the top.
2. The glue pouring method for the permanent magnet synchronous motor rotor according to claim 1, characterized in that: the magnetic steel groove structure has 8.
3. The glue pouring method for the permanent magnet synchronous motor rotor according to claim 2, characterized in that: the rotor module comprises a rotor module, a rotor module and a magnetic steel groove structure, wherein four first holes are uniformly distributed in the circumferential direction of the rotor module, four pairs of communicating holes are uniformly distributed in the circumferential direction of the rotor module, the first holes and the pairs of communicating holes are arranged at intervals, a magnetic steel groove structure is arranged between the first holes and the pairs of communicating holes, the pairs of communicating holes comprise second holes and third holes which are communicated with each other, the first holes, the second holes and the third holes are sequentially and clockwise arranged on the circumferential end face of the rotor module, and the circumferential end face is the front face of the rotor module; the included angle between the center of the first hole and the center of the large magnetic steel groove adjacent to one side of the first hole is 22.5 degrees, the included angle between the center of the large magnetic steel groove and the center of the second hole adjacent to one side of the large magnetic steel groove is 21 degrees, and the included angle between the center of the second hole and the center of the third hole adjacent to the second hole is 4.5 degrees.
4. The glue pouring method for the permanent magnet synchronous motor rotor according to claim 3, characterized in that: the number of the rotor modules is 5, and the rotor modules are respectively a rotor module I, a rotor module II, a rotor module III, a rotor module IV and a rotor module V; and when the front surface of the rotor module is placed upwards, the mark slot is positioned between the middle part of one of the magnetic steel slot structures and the left end of the magnetic steel slot structure.
The glue pouring method specifically comprises the following steps:
(1) placing a front side of the rotor module upwards;
(2) placing the reverse side of the rotor module II upwards, aligning the hole II of the rotor module II with the hole III of the rotor module I, and placing the rotor module II on the rotor module I;
(3) placing the reverse side of the rotor module III upwards, aligning the hole I of the rotor module III with the hole II of the rotor module II and placing the rotor module III on the rotor module II;
(4) the front face of the rotor module IV is placed upwards, the hole II of the rotor module IV is aligned with the hole I of the rotor module III, and the rotor module IV is placed on the rotor module III;
(5) placing the reverse side of the rotor module V upwards, aligning the hole III of the rotor module V with the hole II of the rotor module IV and placing the rotor module V on the rotor module IV;
(6) and pressing the rotor module I, the rotor module II, the rotor module III, the rotor module IV and the rotor module V together by using a tool, and pouring glue into each large magnetism isolating groove of the rotor module V to finish the glue pouring process.
5. The glue pouring method for the permanent magnet synchronous motor rotor according to claim 4, characterized in that: the magnetic steel groove structure also comprises a small magnetic steel groove which is positioned outside the large magnetic steel groove, small magnetism isolating grooves are arranged on two sides of the small magnetic steel groove, and small magnetic steels are inserted into the small magnetic steel groove;
the step (5) of the glue filling method further comprises the following steps:
and (5) pouring glue into the small magnetism isolating grooves on two sides of the small magnetic steel groove of the rotor module V.
6. The glue pouring method for the rotor of the permanent magnet synchronous motor according to any one of claims 1 to 5, characterized in that: the rotor module is formed by stacking and riveting a plurality of rotor punching sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123169.1A CN111181334B (en) | 2020-02-27 | 2020-02-27 | Glue pouring method for permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010123169.1A CN111181334B (en) | 2020-02-27 | 2020-02-27 | Glue pouring method for permanent magnet synchronous motor rotor |
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| Publication Number | Publication Date |
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| CN111181334A true CN111181334A (en) | 2020-05-19 |
| CN111181334B CN111181334B (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010123169.1A Active CN111181334B (en) | 2020-02-27 | 2020-02-27 | Glue pouring method for permanent magnet synchronous motor rotor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023179A (en) * | 2011-09-22 | 2013-04-03 | 日产自动车株式会社 | Rotor |
| CN106849426A (en) * | 2017-02-27 | 2017-06-13 | 雷勃电气（苏州）有限公司 | A kind of assembly method of rotor punching, rotor core and rotor core |
| JP2017163761A (en) * | 2016-03-10 | 2017-09-14 | アイシン・エィ・ダブリュ株式会社 | Method of manufacturing rotor |
| CN108023417A (en) * | 2016-11-04 | 2018-05-11 | 三菱电机株式会社 | Magnet baried type electric rotating motivation and its manufacture method |
| CN109546774A (en) * | 2018-12-04 | 2019-03-29 | 菲仕绿能科技(北京)有限公司 | A kind of oblique pole structure of permanent-magnetic synchronous motor rotor and assemble method |
-
2020
- 2020-02-27 CN CN202010123169.1A patent/CN111181334B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023179A (en) * | 2011-09-22 | 2013-04-03 | 日产自动车株式会社 | Rotor |
| JP2017163761A (en) * | 2016-03-10 | 2017-09-14 | アイシン・エィ・ダブリュ株式会社 | Method of manufacturing rotor |
| CN108023417A (en) * | 2016-11-04 | 2018-05-11 | 三菱电机株式会社 | Magnet baried type electric rotating motivation and its manufacture method |
| CN106849426A (en) * | 2017-02-27 | 2017-06-13 | 雷勃电气（苏州）有限公司 | A kind of assembly method of rotor punching, rotor core and rotor core |
| CN109546774A (en) * | 2018-12-04 | 2019-03-29 | 菲仕绿能科技(北京)有限公司 | A kind of oblique pole structure of permanent-magnetic synchronous motor rotor and assemble method |
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| Publication number | Publication date |
|---|---|
| CN111181334B (en) | 2022-06-03 |
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