CN217741401U - Three-phase permanent-magnet DC motor - Google Patents
Three-phase permanent-magnet DC motor Download PDFInfo
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- CN217741401U CN217741401U CN202221529778.8U CN202221529778U CN217741401U CN 217741401 U CN217741401 U CN 217741401U CN 202221529778 U CN202221529778 U CN 202221529778U CN 217741401 U CN217741401 U CN 217741401U
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- 230000005389 magnetism Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 20
- 238000009434 installation Methods 0.000 abstract description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of the motor, concretely relates to adopt distributed winding stator and spoke structure rotor three-phase permanent magnet direct current motor, the stator is provided with a plurality of wire casings around central equidistance, slot number m = Pn, P is the number of poles, n is greater than or equal to 3, first phase coil installs in the wire casing with span t, the head side of third phase coil and first phase coil tail side cochannel and install in the wire casing with span t, the head side of second phase coil and third phase coil tail side cochannel, tail side and first phase coil head side cochannel, and install in the wire casing with span t; the rotor is installed in the stator, the rotor adopts spoke structure to be provided with a plurality of permanent magnets. Compared with the prior art, the direct current motor of this patent adopts the distributed winding, and the winding coefficient is high, and torque ripple is little, and the rotor adopts SPOKE (SPOKE) rotor structure, and the tooth's socket torque is little, and the noise vibration is little and the installation is simple, and it is effectual to gather magnetism simultaneously, and the noise vibration is little, and motor efficiency is high.
Description
Technical Field
The utility model relates to a permanent magnet brushless DC motor, concretely relates to adopt three permanent magnet DC motor of distributed winding stator and spoke structure rotor.
Background
The common permanent magnet brushless direct current motor usually adopts a concentrated winding form, and has low winding coefficient, low efficiency, large torque pulsation and large noise vibration; ordinary permanent magnet brushless DC motor adopts surface-mounted magnetite or embedded magnetite rotor structure, and surface-mounted magnetite permanent-magnet machine tooth's socket torque is big, leads to the noise vibration big to the installation is complicated, and fixed needs add the protective sheath, and embedded magnetite rotor motor magnetic leakage is serious, and motor inefficiency.
Disclosure of Invention
The utility model aims at solving prior art, three-phase permanent magnetism brushless DC motor stator adopts concentrated winding and surface-mounted magnetite or embedded magnetite rotor structure, and the winding coefficient is low, and torque pulsation is big, and the tooth's socket torque is big, and the noise vibration is big, and the problem complicated with the installation of inefficiency adopts distributed winding stator and spoke structure rotor to solve.
The scheme that this patent adopted is as follows: three-phase permanent magnet direct current motor, wherein:
the stator is provided with a plurality of wire slots at equal intervals around the center, the number of the slots m = Pn, P is the number of poles, n is more than or equal to 3, the first phase coil is installed in the wire slots with a span t, the head side edge of the third phase coil is in common groove with the tail side edge of the first phase coil and is installed in the wire slots with the span t, the head side edge of the second phase coil is in common groove with the tail side edge of the third phase coil, the tail side edge is in common groove with the head side edge of the first phase coil, and the second phase coil is installed in the wire slots with the span t; the rotor is installed in the stator, the rotor adopts spoke structure to be provided with a plurality of permanent magnets.
Compared with the prior art, the direct current motor of this patent adopts the distributed winding, and the winding coefficient is high, and torque ripple is little, and the rotor adopts SPOKE (SPOKE) rotor structure, and the tooth's socket torque is little, and the noise vibration is little and the installation is simple, and it is effectual to gather magnetism simultaneously, and the noise vibration is little, and motor efficiency is high.
Preferably, each slot corresponds to a slot floor n =3, and the span t is 3 slots.
Preferably, the rotor is provided with a plurality of magnet mounting grooves arranged radially, and the plurality of permanent magnets are mounted in the magnet mounting grooves.
Preferably, the rotor is provided with a plurality of magnet mounting grooves arranged radially, and the plurality of permanent magnets are fixed in the magnet mounting grooves by an adhesive material.
Drawings
FIG. 1 is a schematic diagram of the A/U phase winding of the present invention
FIG. 2 is a schematic diagram of the B/V phase winding of the present invention
FIG. 3 is a schematic diagram of the C/W phase winding of the present invention
FIG. 4 is a schematic diagram of the distributed winding of the present invention
FIG. 5 is a schematic sectional view of a stator according to the present invention
Detailed Description
The technical scheme of the utility model is described below with the accompanying drawings:
referring to fig. 4 and 5, the permanent magnet dc motor of the present invention includes a stator and a rotor, wherein the stator includes a stator core and a three-phase winding, and the rotor includes a rotor core 1 and a plurality of permanent magnet pieces 2; the stator core body is provided with a plurality of wire grooves at equal intervals around the center, the number of the grooves is m = Pn, P is the number of poles, n is more than or equal to 3, a first-phase coil is installed in the wire grooves in a span t mode, the head side edge of a third-phase coil and the tail side edge of the first-phase coil share the groove and are installed in the wire grooves in the span t mode, the head side edge of a second-phase coil and the tail side edge of the third-phase coil share the groove, the tail side edge and the head side edge of the first-phase coil share the groove, and the tail side edge and the head side edge of the first-phase coil share the groove and are installed in the wire grooves in the span t mode; the rotor is installed in the stator, the rotor adopts spoke structure, and rotor core 1 is provided with a plurality of radial magnet mounting grooves 1.1 that set up, a plurality of permanent magnets 2 are installed in the magnet mounting groove, and 3 are the pivot in figure 5.
The permanent magnets can be fixed in the magnet mounting grooves through bonding materials or the conventional way of fixing the permanent magnets is adopted.
Compared with the prior art, the direct current motor of the patent adopts distributed windings, the winding coefficient is high, the torque ripple is small, the rotor adopts a SPOKE (SPOKE) rotor structure, the tooth space torque is small, the noise vibration is small, the installation is simple, the magnetic concentration effect is good, the noise vibration is small, and the motor efficiency is high.
In one embodiment, each slot corresponds to a slotline n =3 and the span t is 3 slots.
The technical principle of the utility model is illustrated by taking an 8-pole motor as an example as follows:
the number of stator pole pairs is 8,n =3, the span t is 3 slots, and the wire slot on the stator core is 8 poles × 3=24 slots, which is named 1-24 for convenience of description.
Referring to fig. 1, the A/U phase is wound firstly and is wound in 23,1 grooves in sequence; 2,4 grooves; 5,7 grooves; 8,10 slots; 11 13 grooves; 14 16 grooves; 17 19 grooves; 20 22 grooves.
Referring to fig. 2, winding B/V phase, winding in 24,2 grooves in sequence; 3,5 grooves; 6,8 grooves; 9,11 grooves; 12 14, a groove; 15 17 groove; 18 20, a groove; 21 23, grooves.
Referring to fig. 3, C/W phases are wound and are sequentially wound in 1,3 grooves; 4,6 grooves; 7,9 grooves; 10 12 grooves; 13 15 grooves; 16 18, a groove; 19 21 groove; 22 And 24 grooves.
The head side edge and the C/W tail side edge of the B/V phase coil share the groove, the tail side edge and the A/U phase coil head side edge of the B/V phase coil share the groove, and the tail side edge and the C/W head side edge of the A/U phase coil share the groove.
Modifications and variations of the above-described embodiments are possible to those skilled in the art in light of the above teachings and teachings, and the invention is not limited to the specific embodiments disclosed and described, but rather, modifications and variations are possible within the scope of the invention as defined by the appended claims.
Claims (4)
1. Three-phase permanent magnetism direct current motor, its characterized in that includes:
the stator is provided with a plurality of wire grooves at equal intervals around the center, the number of the grooves is m = Pn, P is the number of poles, n is more than or equal to 3, the first-phase coil is arranged in the wire grooves in a span t mode, the head side edge of the third-phase coil is in common groove with the tail side edge of the first-phase coil and is arranged in the wire grooves in the span t mode, the head side edge of the second-phase coil is in common groove with the tail side edge of the third-phase coil, the tail side edge is in common groove with the head side edge of the first-phase coil, and the tail side edge is arranged in the wire grooves in the span t mode;
and the rotor is arranged in the stator and is provided with a plurality of permanent magnets by adopting a spoke structure.
2. A three-phase permanent magnet dc machine according to claim 1, characterized in that n =3 and the span t is 3 slots.
3. The three-phase permanent magnet direct current electric machine according to claim 1, wherein the rotor is provided with a plurality of radially arranged magnet mounting slots in which the plurality of permanent magnets are mounted.
4. The three-phase permanent magnet dc motor of claim 1, wherein the rotor is provided with a plurality of radially arranged magnet mounting slots, and the plurality of permanent magnets are fixed in the magnet mounting slots by an adhesive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221529778.8U CN217741401U (en) | 2022-06-17 | 2022-06-17 | Three-phase permanent-magnet DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221529778.8U CN217741401U (en) | 2022-06-17 | 2022-06-17 | Three-phase permanent-magnet DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217741401U true CN217741401U (en) | 2022-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221529778.8U Active CN217741401U (en) | 2022-06-17 | 2022-06-17 | Three-phase permanent-magnet DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217741401U (en) |
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2022
- 2022-06-17 CN CN202221529778.8U patent/CN217741401U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240305 Address after: 528300 Factory Building 1, No. 202, Yongyong Road, Zhongyong Village, Leliu Street, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan Dilute Technology Co.,Ltd. Country or region after: China Address before: 528300 No.1, Xianglian Road, Xincheng Community No.1 Industrial Zone, Leliu Street, Shunde District, Foshan City, Guangdong Province Patentee before: Foshan Shanglianda Electrical Technology Co.,Ltd. Country or region before: China |