CN211655958U - Stator structure of permanent magnet motor - Google Patents
Stator structure of permanent magnet motor Download PDFInfo
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- CN211655958U CN211655958U CN201922189056.7U CN201922189056U CN211655958U CN 211655958 U CN211655958 U CN 211655958U CN 201922189056 U CN201922189056 U CN 201922189056U CN 211655958 U CN211655958 U CN 211655958U
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- 238000004804 winding Methods 0.000 claims abstract description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 239000010949 copper Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of permanent magnet motors, and discloses a stator structure of a permanent magnet motor, which comprises an inner stator and an outer stator; the inner stator comprises an inner stator iron core and an inner stator winding, and the outer stator comprises an outer stator iron core and an outer stator winding; the inner stator iron core is arranged on an auxiliary shaft of the motor rotor, the outer stator iron core is arranged on the inner wall of the motor shell, the number of winding tooth slots on the inner stator iron core and the outer stator iron core is the same, the winding mode of the inner stator winding and the winding mode of the outer stator winding are the same, and the phase difference of the inner stator winding and the winding phase of the outer stator winding is 180 degrees. The stator structure of this scheme adopts fractional slot, and single double-deck hybrid concentrates the winding, and the beneficial effect of this kind of winding is that the tooth's socket torque who reduces the motor improves the output torque of motor, reduces the use amount of copper line, reduces the resistance of winding, reduces the copper loss of motor, reduces the temperature rise of motor.
Description
Technical Field
The utility model relates to a permanent-magnet machine technical field specifically is a permanent-magnet machine's stator structure.
Background
With the development of motor technology and permanent magnet materials, the permanent magnet motor is widely applied to a motor system due to the advantages of high efficiency, high power density, high power factor and the like. State of the art permanent magnet motors use a stator to rotate the motor rotor, which limits the efficiency and power density of the motor.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a permanent-magnet machine's stator structure, it adopts a stator to come the driving motor rotor rotatory to solve prior art, has restricted the efficiency of motor and power density's problem.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a stator structure of a permanent magnet motor comprises an inner stator and an outer stator which are coaxially sleeved from inside to outside in sequence; the inner stator comprises an inner stator iron core and an inner stator winding arranged on the inner stator iron core, and the outer stator comprises an outer stator iron core and an outer stator winding arranged on the outer stator iron core; the inner stator iron core is arranged on an auxiliary shaft of the motor rotor, the outer stator iron core is arranged on the inner wall of the motor shell, the number of winding tooth grooves on the inner stator iron core and the outer stator iron core is the same, the winding mode of the inner stator winding and the winding mode of the outer stator winding are the same, and the phase difference of the windings of the inner stator winding and the outer stator winding is 180 degrees.
Further, the outer stator and the outer magnetic pole of the rotor form an outer air gap magnetic field of the motor, and the inner stator and the inner magnetic pole of the rotor form an inner air gap magnetic field of the motor.
Further, the inner stator iron core and the outer stator iron core are formed by silicon steel sheets in an overlapping mode.
Has the advantages that: the stator structure of this scheme adopts fractional slot, and single double-deck hybrid concentrates the winding, and the beneficial effect of this kind of winding is that the tooth's socket torque who reduces the motor improves the output torque of motor, reduces the use amount of copper line, reduces the resistance of winding, reduces the copper loss of motor, reduces the temperature rise of motor.
Drawings
FIG. 1 is a schematic half-sectional view of a stator structure of the present embodiment;
FIG. 2 is a stator winding distribution diagram of the present embodiment;
FIG. 3 is a schematic view of the stator structure of the present embodiment;
reference numerals: the motor comprises an inner stator iron core 1, an outer stator iron core 2, an auxiliary shaft 3, a motor shell 4 and a winding tooth slot 5.
Detailed Description
The technical solution of the stator structure of the permanent magnet motor according to the present invention will be described in further detail with reference to the following embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 2 and fig. 3, the stator structure of the permanent magnet motor of the present embodiment includes an inner stator and an outer stator coaxially sleeved from inside to outside in sequence; the inner stator comprises an inner stator iron core 1 and an inner stator winding arranged on the inner stator iron core 1, and the outer stator comprises an outer stator iron core 2 and an outer stator winding arranged on the outer stator iron core 2; the inner stator iron core 1 is arranged on an auxiliary shaft 3 of the motor rotor, the outer stator iron core 2 is arranged on the inner wall of a motor shell 4, the number of winding tooth grooves 5 on the inner stator iron core 1 and the outer stator iron core 2 is the same, the winding mode of the inner stator winding and the outer stator winding is the same, and the winding phase difference of the inner stator winding and the outer stator winding is 180 degrees. The outer stator and the outer magnetic pole of the rotor form an outer air gap magnetic field of the motor, and the inner stator and the inner magnetic pole of the rotor form an inner air gap magnetic field of the motor. The inner stator iron core 1 and the outer stator iron core 2 are formed by silicon steel sheets in an overlapping mode.
The stator structure of this scheme adopts fractional slot, and single double-deck hybrid concentrates the winding, and the beneficial effect of this kind of winding is that the tooth's socket torque who reduces the motor improves the output torque of motor, reduces the use amount of copper line, reduces the resistance of winding, reduces the copper loss of motor, reduces the temperature rise of motor.
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 (3)
1. A permanent-magnet machine's stator structure which characterized in that: comprises an inner stator and an outer stator which are coaxially sleeved from inside to outside in sequence; the inner stator comprises an inner stator iron core and an inner stator winding arranged on the inner stator iron core, and the outer stator comprises an outer stator iron core and an outer stator winding arranged on the outer stator iron core; the inner stator iron core is arranged on an auxiliary shaft of the motor rotor, the outer stator iron core is arranged on the inner wall of the motor shell, the number of winding tooth grooves on the inner stator iron core and the outer stator iron core is the same, the winding mode of the inner stator winding and the winding mode of the outer stator winding are the same, and the phase difference of the windings of the inner stator winding and the outer stator winding is 180 degrees.
2. The stator structure of a permanent magnet motor according to claim 1, wherein: the outer stator and the outer magnetic pole of the rotor form an outer air gap magnetic field of the motor, and the inner stator and the inner magnetic pole of the rotor form an inner air gap magnetic field of the motor.
3. The stator structure of a permanent magnet motor according to claim 1, wherein: the inner stator iron core and the outer stator iron core are formed by silicon steel sheets in an overlapping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922189056.7U CN211655958U (en) | 2019-12-09 | 2019-12-09 | Stator structure of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922189056.7U CN211655958U (en) | 2019-12-09 | 2019-12-09 | Stator structure of permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211655958U true CN211655958U (en) | 2020-10-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922189056.7U Active CN211655958U (en) | 2019-12-09 | 2019-12-09 | Stator structure of permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211655958U (en) |
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2019
- 2019-12-09 CN CN201922189056.7U patent/CN211655958U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 1, 201, Building 1, No. 16 Dahua Road, Yanchuan Community, Yanluo Street, Bao'an District, Shenzhen City, Guangdong Province, 518127 Patentee after: Shenzhen Zhongyue New Energy Technology Co.,Ltd. Country or region after: China Address before: Building 1, 201, Building 1, No. 16 Dahua Road, Yanchuan Community, Yanluo Street, Bao'an District, Shenzhen City, Guangdong Province, 518000 Patentee before: Shenzhen Zhongyue Electromechanical Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |