CN214626550U - Novel split-phase permanent magnet synchronous servo motor - Google Patents
Novel split-phase permanent magnet synchronous servo motor Download PDFInfo
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- CN214626550U CN214626550U CN202120066673.2U CN202120066673U CN214626550U CN 214626550 U CN214626550 U CN 214626550U CN 202120066673 U CN202120066673 U CN 202120066673U CN 214626550 U CN214626550 U CN 214626550U
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Abstract
The invention relates to the technical field of motors, in particular to a novel phase-splitting permanent magnet synchronous servo motor which comprises a shell, an end cover, a phase-splitting stator laminated assembly and a phase-splitting rotor laminated assembly. The split-phase stator laminated assembly comprises a stator core, a split-phase winding, a stator connecting sheet and a stator end seal; the split-phase rotor laminated assembly comprises a rotor shaft, permanent magnet blocks, a rotor connecting sheet and a magnet sealing ring. The stator core is divided into three groups along the axial direction: the stator comprises a group A, a group B and a group C, wherein the middle parts of two adjacent groups of stator cores are connected by a stator connecting sheet, and the two ends of the stator cores are sealed and fixed by stator ends. The novel split-phase permanent magnet synchronous servo motor does not need to detect the position change of a magnetic field through a Hall element, and the structure is simplified. After three-phase current is supplied, the three wires U, V, W drive the A, B, C parts to operate simultaneously, and the superposition of magnetic flux density and torque improves the power of the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a novel split-phase permanent magnet synchronous servo motor.
Background
The traditional permanent magnet synchronous motor has the advantages of simple structure, small volume, small loss and the like, and is widely applied to the fields of servo systems, electric automobiles, rail transit and the like.
In the stator structure of the conventional motor such as a synchronous motor and an asynchronous motor, the stator winding is fixed through the stator slot, and the three-phase winding is concentrated on one stator structure and fixed to form a complete stator.
In recent years, there has been a new type of coreless technology. For the brushless inner rotor hollow cup motor, the stator structure is also that three-phase windings are wound together and bonded into a complete stator.
For the two types of motors, the rotor permanent magnets are combined on the rotor shaft in different structural forms by three phases.
The invention is provided for overcoming the defects of complex winding process, small power and the like of the winding.
Disclosure of Invention
The invention aims to provide a novel split-phase permanent magnet synchronous servo motor with high power, high efficiency and low cost.
The invention provides a novel split-phase permanent magnet synchronous servo motor. The split-phase stator lamination type assembly comprises a shell, an end cover, a split-phase stator lamination type assembly and a split-phase rotor lamination type assembly; the phase-splitting stator laminated assembly comprises a stator core, a phase-splitting winding, a stator connecting sheet and a stator end seal; the split-phase rotor laminated assembly comprises a rotor shaft, permanent magnet blocks, a rotor connecting sheet and a magnet sealing ring; the stator core is formed by stacking silicon steel sheets and is axially divided into three phases: the stator core comprises a phase A, a phase B and a phase C, wherein adjacent two phases of stator cores are axially overlapped; all phases are connected by a stator connecting sheet, and two ends of the stator connecting sheet are sealed and fixed by stator ends; the stator component is provided with winding slots for fixing windings of corresponding phases of the motor; the stator assembly is fixedly combined by connecting sheets made of non-magnetic materials, and magnetic isolation is carried out on A, B, C three groups of stator iron cores; the permanent magnets are connected and fixed by rotor connecting sheets made of non-magnetic materials, so that the magnets are connected with the shaft into a whole through the connecting sheets, and two ends of each permanent magnet are fixed by magnet sealing rings.
The novel split-phase permanent magnet synchronous servo motor has the advantages that the split-phase winding of the novel split-phase permanent magnet synchronous servo motor takes A, B, C three phases as a group, the diameter of a stator core is fixed, and along with the increase of the length of the stator core, the multi-group split-phase winding can be arranged along the axial direction to increase the power of the motor.
The rotor shaft of the novel split-phase permanent magnet synchronous servo motor is axially divided into three phase regions corresponding to the stator core: the permanent magnet blocks are fixed in each phase area, the permanent magnet blocks are matched with the number of poles of the motor, the diameter of the rotor shaft is fixed, multiple groups of magnets can be arranged along the axial direction along with the increase of the length of the rotor shaft so as to increase the power of the motor, and the number of the increased rotor groups is matched with the number of the stator groups.
Novel phase-splitting permanent magnet synchronous servo motor, the combination of its rotor shaft and magnet has two kinds: firstly, surface combination is carried out, the rotor shaft of the combination part is in a symmetrical polygon shape, and secondly, groove embedding type combination is carried out between the shaft and the magnet; the outlet mode of the inlet and outlet wire end is two: one is centralized outgoing line, and the other is three-port split-phase outgoing line, namely U1U2Mouth, V1V2Mouth, W1W2And the anti-electromagnetic interference condition can be improved.
After three-phase current is conducted to the novel split-phase permanent magnet synchronous servo motor, the three wires U, V, W drive the A, B, C three groups of coils to work simultaneously, and the power is P ═ PU+PV+PW。
Drawings
Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.
Fig. 2 is a perspective view of a split-phase stator stacked assembly in accordance with an embodiment of the present invention.
Fig. 3 is a schematic plan view of a concentrated incoming/outgoing line terminal according to an embodiment of the present invention.
FIG. 4 is a schematic plan view of the split-phase inlet/outlet line according to the embodiment of the present invention.
In the figure: 1. a housing; 2. an end cap; 3. a split-phase stator laminated assembly; 31. a stator core; 32. split-phase winding; 33. A winding slot; 34. a stator connecting sheet; 35. sealing the end of the stator; 4. a split-phase rotor laminated assembly; 41. a rotor shaft; 42. Permanent magnet blocks; 43. a rotor connecting sheet; 44. sealing a ring by a magnet; 5. a bearing; 6. a screw; 7. ABC three-phase centralized outlet terminal; 8. a split-phase outlet terminal; 81. an A phase outlet end; 82. a phase B outgoing line end; 83. and C phase outlet terminal.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following specific examples are merely illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, an embodiment of the present invention provides a novel split-phase permanent magnet synchronous servo motor, which includes a housing 1, an end cover 2, a split-phase stator laminated assembly 3, and a split-phase rotor laminated assembly 4; the split-phase stator laminated assembly 3 comprises a stator core 31, a split-phase winding 32, a stator connecting sheet 34 and a stator end seal 35; the split-phase rotor laminated assembly 4 comprises a rotor shaft 41, permanent magnet blocks 42, a rotor connecting sheet 43 and a magnet sealing ring 44; the stator core 31 is formed by stacking silicon steel sheets, and is axially divided into three phases: the stator comprises a phase A, a phase B and a phase C, wherein the middle parts of adjacent two phases of stator cores 31 are connected by a stator connecting sheet 34, and the two ends of the adjacent two phases of stator cores are fixed by a stator end seal 35; the stator assembly 3 is provided with winding slots 33 for fixing the split-phase windings 32, and the stator assembly 3 is fixedly combined by connecting sheets made of non-magnetic-conductive materials to magnetically isolate A, B, C three groups of stator iron cores 31; the permanent magnets 42 are connected and fixed by rotor connecting pieces 43 made of non-magnetic material, and both ends are fixed by magnet sealing rings 44.
The novel split-phase permanent magnet synchronous servo motor has the advantages that the split-phase winding 32 of the novel split-phase permanent magnet synchronous servo motor takes A, B, C three phases as a group, the diameter of the stator core 31 is fixed, and along with the increase of the length of the stator core 31, the multi-group split-phase winding 32 can be arranged along the axial direction to increase the power of the motor.
The rotor shaft 41 of the novel split-phase permanent magnet synchronous servo motor is axially divided into three phase regions corresponding to the stator core 31: each phase area of A phase, B phase and C phase is fixed with permanent magnet blocks 42 which are matched with the number of poles of the motor. The diameter of the rotor shaft 41 is fixed, and as the length of the rotor shaft 41 increases, a plurality of groups of magnets 42 can be arranged along the axial direction to increase the power of the motor, and the number of the increased rotor groups is matched with the number of the stator groups.
The above-mentionedIn the novel split-phase permanent magnet synchronous servo motor, two types of combination of a rotor shaft 41 and a magnet 42 are adopted, wherein the rotor shaft at the combination part is in a symmetrical polygon shape; secondly, the shaft and the magnet are combined in a slot embedding way; the outlet mode of the inlet and outlet wire end is two: one is centralized outgoing line, and the other is three-port split-phase outgoing line, namely U1U2Mouth, V1V2Mouth, W1W2And the mouth can provide a condition for resisting electromagnetic interference.
After three-phase current is conducted to the novel split-phase permanent magnet synchronous servo motor, the three wires U, V, W drive the A, B, C three groups of coils to work simultaneously, and the power is P ═ PU+PV+PW。
Claims (5)
1. A novel phase-splitting permanent magnet synchronous servo motor comprises a shell, an end cover, a phase-splitting stator laminated assembly and a phase-splitting rotor laminated assembly; the split-phase stator laminated assembly comprises a stator core, a split-phase winding, a stator connecting sheet and a stator end seal; the split-phase rotor laminated assembly comprises a rotor shaft, permanent magnet blocks, a rotor connecting sheet and a magnet sealing ring; the stator core is formed by stacking silicon steel sheets and is axially divided into three phases: the stator comprises a phase A, a phase B and a phase C, wherein adjacent two phases of stator cores are axially overlapped, all the phases are connected by a stator connecting sheet, and two ends of the stator connecting sheet are sealed and fixed by stator ends; the stator component is provided with winding slots for fixing windings of corresponding phases of the motor; the stator assembly is fixedly combined by connecting sheets made of non-magnetic materials, and magnetic isolation is carried out on A, B, C three groups of stator iron cores; the permanent magnets are connected and fixed by rotor connecting sheets made of non-magnetic materials, so that the magnets are connected with the shaft into a whole through the connecting sheets, and two ends of each permanent magnet are fixed by magnet sealing rings.
2. The new split-phase permanent magnet synchronous servo motor as claimed in claim 1, wherein the split-phase windings are grouped into A, B, C three phases, the diameter of the stator core is fixed, and as the length of the stator core increases, the multi-component windings can be arranged along the axial direction to increase the power of the motor.
3. The new split-phase permanent magnet synchronous servo motor as claimed in claim 1, wherein the rotor shaft is axially divided into three phase sections corresponding to the stator core: the permanent magnet blocks are fixed in each phase area, the permanent magnet blocks are matched with the number of poles of the motor, the diameter of the rotor shaft is fixed, multiple groups of magnets can be arranged along the axial direction along with the increase of the length of the rotor shaft so as to increase the power of the motor, and the number of the increased rotor groups is matched with the number of the stator groups.
4. The split-phase permanent magnet synchronous servo motor as claimed in claim 1, wherein the rotor shaft and the magnet are combined into two types: firstly, surface combination is carried out, the rotor shaft of the combination part is in a symmetrical polygon shape, and secondly, groove embedding type combination is carried out between the shaft and the magnet; the outlet mode of the inlet and outlet wire end is two: one is centralized outgoing line, and the other is three-port split-phase outgoing line, namely U1U2Mouth, V1V2Mouth, W1W2And the mouth can provide a condition for resisting electromagnetic interference.
5. The new split-phase permanent-magnet synchronous servo motor as claimed in claim 1, wherein after three-phase current is applied, three wires U, V, W drive A, B, C three groups of coils to work simultaneously, and the power is P ═ PU+PV+PW。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066673.2U CN214626550U (en) | 2021-01-12 | 2021-01-12 | Novel split-phase permanent magnet synchronous servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066673.2U CN214626550U (en) | 2021-01-12 | 2021-01-12 | Novel split-phase permanent magnet synchronous servo motor |
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| Publication Number | Publication Date |
|---|---|
| CN214626550U true CN214626550U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120066673.2U Active CN214626550U (en) | 2021-01-12 | 2021-01-12 | Novel split-phase permanent magnet synchronous servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214626550U (en) |
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2021
- 2021-01-12 CN CN202120066673.2U patent/CN214626550U/en active Active
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