CN217882984U - Magnetic flux reverse transverse flux permanent magnet motor - Google Patents
Magnetic flux reverse transverse flux permanent magnet motor Download PDFInfo
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- CN217882984U CN217882984U CN202221564266.5U CN202221564266U CN217882984U CN 217882984 U CN217882984 U CN 217882984U CN 202221564266 U CN202221564266 U CN 202221564266U CN 217882984 U CN217882984 U CN 217882984U
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- 230000004907 flux Effects 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 24
- 230000004323 axial length Effects 0.000 claims description 12
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 6
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 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 discloses a magnetic flux reverse transverse flux permanent magnet motor, which comprises a non-magnetic-conductive stator shell, a stator mechanism and a rotor mechanism; the stator mechanism comprises a stator core and an armature winding, the stator core is of an inverted U-shaped structure, permanent magnets which are symmetrically distributed are arranged on two salient pole teeth of the stator core, the rotor mechanism comprises a motor rotating shaft, a non-magnetic-conductive cylinder and a rotor core, the rotor core is of a U-shaped structure, adjacent rotor cores are arranged in a left-right staggered interval mode along the axial direction, a magnetic field in the motor forms a closed loop through the stator mechanism and the rotor mechanism, the magnetic-flux reverse transverse-magnetic-flux permanent magnet motor has higher electromagnetic torque output capacity than a permanent magnet motor of a traditional structure, the armature winding is located inside the stator mechanism, the permanent magnets are arranged on the salient pole teeth of the stator core, and the rotor core is not provided with either the permanent magnets or the winding, is simple and reliable in structure and has higher mechanical strength; the unique stator mechanism improves the air gap magnetic density of the motor and improves the power density of the motor.
Description
Technical Field
The utility model belongs to the technical field of the motor, concretely relates to reverse transverse flux permanent-magnet machine of magnetic flux.
Background
In the prior art, because the teeth and the grooves of a stator or a rotor are on the same section, the sizes of the teeth and the grooves are restricted mutually, so that the output torque of the motor is limited, therefore, the German H.Weh teaches that the transverse magnetic field permanent magnet motor is invented, the tooth space structure of the stator and the armature coil of the motor are mutually vertical in the spatial position, and the main magnetic flux in the motor flows along the axial direction of the motor, therefore, the size of the stator and the size of the electrified coil are mutually independent, higher torque and power density can be obtained, and the design of the multiphase motor to realize fault-tolerant redundant operation becomes more convenient because of mutual independence between phases, and the transverse magnetic flux motor has wide application prospect in the fields of new energy automobiles, household appliances, wind driven generators and the like.
However, the transverse flux motor with the existing structure has the defects of large cogging torque, low permanent magnet utilization rate, high magnetic leakage, complex manufacturing process, high cost and the like, and the application of the transverse flux permanent magnet motor is limited, so that a magnetic flux reverse transverse flux permanent magnet motor is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reverse transverse flux permanent-magnet machine of magnetic flux to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a magnetic flux reverse transverse magnetic flux permanent magnet motor comprises a non-magnetic-conductive stator shell, a stator mechanism arranged on the inner side wall of the non-magnetic-conductive stator shell and a rotor mechanism rotatably arranged inside the non-magnetic-conductive stator shell;
the stator mechanism comprises a stator core and an armature winding, the stator core is circumferentially distributed along the inner side wall of the non-magnetic-conductive stator shell, the armature winding is arranged in an inner groove of the stator core, the stator core is of an n-shaped structure, two salient pole teeth of the stator core are respectively provided with a permanent magnet which is symmetrically distributed, the magnetizing directions of adjacent permanent magnets on the salient pole teeth on the same stator core are opposite, the magnetizing directions of adjacent permanent magnets on the salient pole teeth on the adjacent stator core are opposite, and the magnetizing directions of the permanent magnets on the same circumference of the adjacent stator core are opposite;
the rotor mechanism comprises a motor rotating shaft rotatably mounted on the non-magnetic conductive stator shell, a non-magnetic conductive cylinder connected with the motor rotating shaft and rotor cores distributed along the outer circumference of the non-magnetic conductive cylinder in a circumferential direction, the rotor cores are of a U-shaped structure, the adjacent rotor cores are staggered and arranged at intervals left and right along the axial direction, and two salient pole teeth of each rotor core are aligned with the permanent magnets on the two salient pole teeth of the stator core respectively, wherein the magnetizing directions of the permanent magnets are opposite;
the magnetic field in the motor forms a closed loop through the stator mechanism and the rotor mechanism.
Preferably, the permanent magnets symmetrically distributed on each salient pole tooth on the stator core have the same size, and the axial length of each permanent magnet is equal to half of the axial length of one salient pole tooth on the stator core.
Preferably, the permanent magnet is a radial magnetized permanent magnet made of neodymium iron boron materials.
Preferably, the motor rotating shaft is rotatably mounted on the non-magnetic conductive stator housing through a bearing.
Preferably, the axial length of the pole teeth on the rotor core is equal to the axial length of the permanent magnets.
Preferably, the number of the stator cores and the number of the rotor cores are both N, and N is more than or equal to 2.
Preferably, the stator core is a stator core made of silicon steel sheets, and the rotor core is a rotor core made of silicon steel sheets.
Compared with the prior art, the beneficial effects of the utility model are that: compared with a permanent magnet motor with a traditional structure, the magnetic flux reverse transverse magnetic flux permanent magnet motor has higher electromagnetic torque output capacity, namely higher torque density, an armature winding is positioned in a stator mechanism, a permanent magnet is arranged on a salient pole tooth part of a stator core, and a rotor core has neither the permanent magnet nor a winding, so that the magnetic flux reverse transverse magnetic flux permanent magnet motor is simple and reliable in structure, low in manufacturing cost and higher in mechanical strength; the unique stator mechanism improves the air gap magnetic density of the motor and improves the power density of the motor.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of the main flux (clockwise) of the flux-reversing transverse-flux permanent magnet machine at time t 0;
fig. 4 is a schematic diagram of the main flux (counterclockwise) of the flux-opposing tfem at time t 1.
In the figure: 1. a stator core; 2. an armature winding; 3. a permanent magnet; 4. a rotor core; 5. a non-magnetically permeable cylinder; 6. a motor shaft; 7. a non-magnetically permeable stator housing; 8. and (5) a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the magnetic flux reversed transverse flux permanent magnet motor provided by the present invention includes a non-magnetic conductive stator housing 7, a stator mechanism disposed on the inner sidewall of the non-magnetic conductive stator housing 7, and a rotor mechanism rotatably mounted inside the non-magnetic conductive stator housing 7;
the stator mechanism comprises a stator core 1 and an armature winding 2, wherein the stator core 1 is distributed along the circumferential direction of the inner side wall of a non-magnetic-conductive stator shell 7, the armature winding 2 is arranged in an inner groove of the stator core 1, the stator core 1 is of an n-shaped structure, the stator core 1 is a stator core prepared from silicon steel sheets, two salient pole teeth of the stator core 1 are respectively provided with a permanent magnet 3 which is symmetrically distributed, the size of the permanent magnet 3 which is symmetrically distributed on each salient pole tooth on the stator core 1 is the same, the axial length of the permanent magnet 3 is equal to half of the axial length of one salient pole tooth on the stator core 1, the magnetizing directions of the adjacent permanent magnets 3 on the salient pole teeth on the same stator core 1 are opposite, the magnetizing directions of the adjacent permanent magnets 3 on the salient pole teeth on the adjacent stator core 1 are opposite, the magnetizing directions of the permanent magnets 3 on the same circumference of the adjacent stator core 1 are opposite, and the permanent magnets 3 are permanent magnets which are radially magnetized by neodymium iron boron materials;
the rotor mechanism comprises a motor rotating shaft 6 rotatably mounted on a non-magnetic-conductive stator shell 7, a non-magnetic-conductive cylinder 5 connected with the motor rotating shaft 6 and rotor cores 4 distributed along the outer circumference of the non-magnetic-conductive cylinder 5, the motor rotating shaft 6 is rotatably mounted on the non-magnetic-conductive stator shell 7 through a bearing 8, the rotor cores 4 are of a U-shaped structure, the rotor cores 4 are rotor cores made of silicon steel sheets, the adjacent rotor cores 4 are arranged in a left-right staggered and spaced mode along the axial direction, the axial length of salient pole teeth on the rotor cores 4 is equal to the axial length of the permanent magnets 3, two salient pole teeth of the rotor cores 4 are respectively aligned with the permanent magnets 3 with opposite magnetizing directions on the two salient pole teeth of the stator cores 1, the number of the stator cores 1 and the number of the rotor cores 4 are N, and N is more than or equal to 2;
a magnetic field in the motor forms a closed loop through the stator mechanism and the rotor mechanism;
in the utility model, the magnetic flux reverse transverse flux permanent magnet motor generates a changing magnetic field in the annular armature winding 2 through rotation, so that a changing potential is induced to realize the operation of the motor, at the moment of t0, when the rotor core 4 shown in fig. 3 (a) passes through the annular armature winding 2, the magnetic flux direction formed by the rotor core 4 and the permanent magnet 3 is clockwise, the rotor core 4 shown in fig. 3 (b) passes through the annular armature winding 2, and the magnetic flux direction formed by the rotor core 4 and the permanent magnet 3 is clockwise; when the rotor core 4 shown in fig. 4 (a) passes through the annular armature winding 2 at the time point t1, the direction of the magnetic flux formed by the rotor core 4 and the permanent magnet 3 is counterclockwise, the rotor core 4 shown in fig. 4 (b) passes through the annular armature winding 2, and the direction of the magnetic flux formed by the rotor core 4 and the permanent magnet 3 is also counterclockwise; therefore, with the difference of the position of the motor rotor, the electric potential which changes periodically is induced in the annular armature winding, compared with the permanent magnet motor with the traditional structure, the permanent magnet motor with the magnetic flux reverse transverse magnetic flux has higher electromagnetic torque output capability, namely higher torque density, the armature winding 2 is positioned in the stator structure, the permanent magnet 3 is arranged in the salient pole tooth part of the stator core 1, the rotor core 4 has neither permanent magnet nor winding, the structure is simple and reliable, and the mechanical strength is higher; the unique stator mechanism improves the air gap magnetic density of the motor and improves the power density of the motor.
The utility model provides a stator mechanism and rotor mechanism among the reverse transverse flux permanent-magnet machine of magnetic flux can replace for the reverse transverse flux permanent-magnet machine of magnetic flux is the motor structure of external rotor, internal stator.
In summary, the working principle of the flux-reversal transverse flux permanent magnet motor provided by this embodiment is as follows: when a rotor iron core 4 shown in a figure 3 (a) penetrates through the annular armature winding 2, the direction of magnetic flux formed by the rotor iron core 4 and the permanent magnet 3 is clockwise, the direction of magnetic flux formed by the rotor iron core 4 and the permanent magnet 3 shown in a figure 3 (b) penetrates through the annular armature winding 2, and the direction of magnetic flux formed by the rotor iron core 4 and the permanent magnet 3 is clockwise; when the rotor core 4 shown in fig. 4 (a) passes through the annular armature winding 2 at the time point t1, the direction of the magnetic flux formed by the rotor core 4 and the permanent magnet 3 is counterclockwise, the rotor core 4 shown in fig. 4 (b) passes through the annular armature winding 2, and the direction of the magnetic flux formed by the rotor core 4 and the permanent magnet 3 is also counterclockwise; as a result, a periodically varying electrical potential is induced in the toroidal armature winding as a function of the position of the rotor of the electric machine.
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 (7)
1. The flux reversal transverse flux permanent magnet motor is characterized by comprising a non-magnetic conductive stator shell (7), a stator mechanism arranged on the inner side wall of the non-magnetic conductive stator shell (7) and a rotor mechanism rotatably arranged in the non-magnetic conductive stator shell (7);
the stator mechanism comprises stator cores (1) distributed along the circumferential direction of the inner side wall of the non-magnetic-conductive stator shell (7) and armature windings (2) arranged in inner grooves of the stator cores (1), the stator cores (1) are n-shaped, permanent magnets (3) symmetrically distributed are arranged on two salient pole teeth of each stator core (1), the magnetizing directions of adjacent permanent magnets (3) on the same salient pole tooth of each stator core (1) are opposite, the magnetizing directions of adjacent permanent magnets (3) on the adjacent salient pole teeth of each stator core (1) are opposite, and the magnetizing directions of the permanent magnets (3) on the same circumference of the adjacent stator cores (1) are opposite;
the rotor mechanism comprises a motor rotating shaft (6) rotatably mounted on the non-magnetic-conductive stator shell (7), a non-magnetic-conductive cylinder (5) connected with the motor rotating shaft (6) and rotor cores (4) distributed along the circumferential direction of the excircle of the non-magnetic-conductive cylinder (5), the rotor cores (4) are of a U-shaped structure, the adjacent rotor cores (4) are staggered and arranged at intervals left and right along the axial direction, and two salient pole teeth of each rotor core (4) are respectively aligned with the permanent magnets (3) on the two salient pole teeth of the stator core (1) and have opposite magnetizing directions;
the magnetic field in the motor forms a closed loop through the stator mechanism and the rotor mechanism.
2. A flux-reversing transverse flux permanent magnet machine according to claim 1, wherein: the permanent magnets (3) symmetrically distributed on each salient pole tooth on the stator core (1) are identical in size, and the axial length of each permanent magnet (3) is equal to half of the axial length of one salient pole tooth on the stator core (1).
3. A flux-reversing transverse flux permanent magnet machine according to claim 1, wherein: the permanent magnet (3) is a radial magnetized permanent magnet prepared from neodymium iron boron materials.
4. A flux reversing transverse flux permanent magnet machine according to claim 1, wherein: the motor rotating shaft (6) is rotatably arranged on the non-magnetic conductive stator shell (7) through a bearing (8).
5. A flux reversing transverse flux permanent magnet machine according to claim 1, wherein: and the axial length of the salient pole teeth on the rotor core (4) is equal to the axial length of the permanent magnet (3).
6. A flux-reversing transverse flux permanent magnet machine according to claim 1, wherein: the number of the stator cores (1) and the number of the rotor cores (4) are both N, and N is more than or equal to 2.
7. A flux-reversing transverse flux permanent magnet machine according to claim 1, wherein: the stator core (1) is prepared from silicon steel sheets, and the rotor core (4) is prepared from silicon steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221564266.5U CN217882984U (en) | 2022-06-21 | 2022-06-21 | Magnetic flux reverse transverse flux permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221564266.5U CN217882984U (en) | 2022-06-21 | 2022-06-21 | Magnetic flux reverse transverse flux permanent magnet motor |
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| Publication Number | Publication Date |
|---|---|
| CN217882984U true CN217882984U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221564266.5U Active CN217882984U (en) | 2022-06-21 | 2022-06-21 | Magnetic flux reverse transverse flux permanent magnet motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116865470A (en) * | 2023-07-04 | 2023-10-10 | 安徽大学 | High-power-density cylindrical transverse flux permanent magnet motor |
| DE102022214361A1 (en) * | 2022-12-23 | 2024-07-04 | BSH Hausgeräte GmbH | Coffee machine with gearless drive |
-
2022
- 2022-06-21 CN CN202221564266.5U patent/CN217882984U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022214361A1 (en) * | 2022-12-23 | 2024-07-04 | BSH Hausgeräte GmbH | Coffee machine with gearless drive |
| CN116865470A (en) * | 2023-07-04 | 2023-10-10 | 安徽大学 | High-power-density cylindrical transverse flux permanent magnet motor |
| CN116865470B (en) * | 2023-07-04 | 2024-02-20 | 安徽大学 | High-power-density cylindrical transverse flux permanent magnet motor |
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