CN118074392A - Driving motor of electric tricycle - Google Patents
Driving motor of electric tricycle Download PDFInfo
- Publication number
- CN118074392A CN118074392A CN202410459977.3A CN202410459977A CN118074392A CN 118074392 A CN118074392 A CN 118074392A CN 202410459977 A CN202410459977 A CN 202410459977A CN 118074392 A CN118074392 A CN 118074392A
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- magnetic steel
- magnetic
- rotor
- iron core
- motor
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 114
- 239000010959 steel Substances 0.000 claims abstract description 114
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000008859 change Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 5
- 230000001808 coupling effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2793—Rotors axially facing stators
- H02K1/2795—Rotors axially facing stators the rotor consisting of two or more circumferentially positioned magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a driving motor of an electric tricycle, which belongs to the technical field of motor structures and comprises: a stator, wherein an iron core of an embedded winding is arranged in the stator, a coil is wound on the iron core, and a motor rotating shaft is connected in the stator in a rotating way through a bearing; a rotor rotatably disposed in the stator; the rotor includes: the middle part of the rotor iron back is fixed with a shaft sleeve and is connected with a motor rotating shaft through the shaft sleeve; a collar fixed to one side of the rotor back; the magnetic steel groups are circumferentially distributed on the rotor iron back, and adjacent magnetic steel groups are arranged at intervals; the magnetic conduction mechanisms are arranged in one-to-one correspondence with the magnetic steel groups, can be matched and installed between the shaft collar and the shaft sleeve, and are used for positioning and installing the magnetic steel groups on the rotor iron back; according to the invention, the arrangement angles of the four magnetic steel components are flexibly adjusted through the guide blocks, so that the magnetic flux density is improved, the magnetic resistance is reduced, the motor efficiency is improved, and the magnetizing direction of the magnetic steel is conveniently fine-tuned in the production process, so that the optimal magnetic field coupling effect is realized.
Description
Technical Field
The invention belongs to the technical field of motor structures, and particularly relates to a driving motor of an electric tricycle.
Background
The disk motor has the advantages of small axial size, high torque density, high power density, high efficiency and the like, and is widely applied to the fields of electric automobiles, general industries, household appliances and the like. In the field of electric tricycles, because the vehicles generally have higher requirements on space utilization efficiency, power performance and endurance mileage, a disc motor (especially a hub motor) can directly integrate a motor inside a wheel, and the traditional transmission shaft, a differential mechanism and other parts are omitted, so that a transmission system is greatly simplified.
The existing disc type motor rotor generally comprises a fixed disc and permanent magnets arranged on the fixed disc, wherein the accuracy of the installation positions of the permanent magnets can directly influence the service performance of the axial magnetic field motor. If the permanent magnet lacks protection, the permanent magnet is easy to loosen relative to the fixed disc. The publication number is: in the CN114678978A patent, a plurality of pressing plates which are distributed at intervals are adopted to fix the magnetic steel axially and circumferentially, so that the magnetic steel is prevented from being thrown out under the condition that a motor rotates at a high speed, and the fixing structure is simpler; as another example, publication No.: CN116436246a, which adopts an integrated pole shoe core to achieve the protection of the cover connection of the magnetic steel, but the magnetic steel adaptation specification is single, and the magnetizing magnetic circuit cannot be optimized, so as to affect the motor performance; as another example, publication No.: the combined structure of the rotor back plate, the magnetic steel layer and the surface iron core layer adopted by the CN108233568B realizes the fixation of magnetic steel, and the special arrangement mode can improve the torque of the motor to a certain extent, but because the production and maintenance cost of a nonstandard magnetic steel magnetic circuit is high, the replaceable range of accessories is small. Therefore, it is necessary to provide an electric tricycle driving motor to solve the above-mentioned problems in the prior art.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: an electric tricycle drive motor, comprising:
The stator is internally provided with an iron core of an embedded winding, a coil is wound on the iron core, and a motor rotating shaft is rotatably connected in the stator through a bearing;
a rotor rotatably disposed in the stator, the rotor comprising:
the middle part of the rotor iron back is fixed with a shaft sleeve, and is connected with a motor rotating shaft through the shaft sleeve;
a collar fixed to one side of the rotor back;
The magnetic steel groups are circumferentially distributed on the rotor iron back, and adjacent magnetic steel groups are arranged at intervals;
the magnetic conduction mechanisms are arranged in one-to-one correspondence with the magnetic steel groups, can be matched and arranged between the shaft collar and the shaft sleeve, and are used for positioning and arranging the magnetic steel groups on the rotor iron back; and the interelectrode sheets are distributed with the circumference of the magnetic conduction mechanism in a staggered manner, two positioning holes are formed in the interelectrode sheets, threaded holes are correspondingly formed in the rotor iron backs, and the interelectrode sheets are detachably arranged on the rotor iron backs.
Further, preferably, the cross section of the magnetic conduction mechanism is in a fan-shaped structure, convex edges are extended laterally at two sides of the magnetic conduction mechanism, and the interelectrode pieces are pressed and buckled on the convex edges, so that the magnetic conduction mechanism is fixed with the rotor iron back.
Further, preferably, the number of the magnetic steel groups is even, the magnetic steel groups are constructed by adopting four magnetic steel members with fan-shaped structures, and are stacked up and down to form two layers, and the magnetic pole directions of the magnetic steel members in each magnetic steel group are in the same direction; the magnetizing directions of the adjacent magnetic steel groups are opposite.
Further, preferably, fixed shafts are fixed at both radial ends of the magnetic steel members in each magnetic steel group, the magnetic steel members are arranged in the magnetic conduction mechanism in a deflectable manner through the fixed shafts, and the steering angle of the horizontal plane of the magnetic steel members is not more than 18 degrees.
Further, preferably, the magnetic conduction mechanism includes: the pole shoe iron core is of an inverted U-shaped structure in cross section, an inner connecting plate and an outer connecting plate are detachably arranged in the pole shoe iron core, the inner connecting plate and the outer connecting plate are matched with the magnetic steel group, and rubber pressing pads are fixed at four corners of the magnetic steel group in the pole shoe iron core.
Further, preferably, an airflow seam is formed on the surface of the pole shoe core.
Further, preferably, one side of the pole shoe core, which is far away from the shaft sleeve, is provided with an opening structure, the shaft collar is provided with a plurality of guide blocks corresponding to the pole shoe core in a radial sliding manner, one end of each guide block extends into the magnetic steel group through the opening of the pole shoe core, the other end of each guide block is provided with an adjusting stud in a rotating manner, and the adjusting studs are in threaded connection in the shaft collar.
Further, preferably, the cross section of the end of the guide block is rectangular, the other end of the guide block is diamond-shaped, and when the end of the guide block partially stretches into the magnetic steel groups, the magnetic steel components in each magnetic steel group are horizontally arranged, and the magnetic steel components can deflect due to the change of the cross section of the guide block along with the radial displacement adjustment of the guide block.
Compared with the prior art, the invention has the beneficial effects that:
The driving motor applied to the electric tricycle mainly adopts a disc motor to provide high output torque so as to meet the requirements of the electric tricycle such as strong starting, climbing, heavy load traction and the like under complex road conditions; the magnetic conduction mechanism arranged on the rotor inside the motor can realize the fixed installation of the magnetic steel component on one hand, and can effectively optimize the magnetic flux path by reasonably configuring the size, shape and arrangement mode of the magnetic steel component on the other hand, thereby being convenient for magnetizing, optimizing the power density of the disk motor and having higher universality; meanwhile, four magnetic steel components distributed in a Chinese character 'tian' are adopted in each magnetic steel group, the distribution angles of the four magnetic steel components are adaptively and flexibly adjusted through the guide blocks, so that the magnetic flux density is further improved, the magnetic resistance is reduced, the motor efficiency is improved, and meanwhile, the magnetizing direction of the magnetic steel is also conveniently and finely adjusted in the production process, so that the optimal magnetic field coupling effect is realized, the adjustment and the duplication are easy in motors with different sizes or power levels, the design and the production complexity are reduced, the generalization and modularization of the magnetic steel components are facilitated for electric tricycle manufacturers on different model product lines, the cost is reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic structural view of a magnetic steel member according to the present invention;
FIG. 4 is a schematic diagram of a magnetic conductive mechanism according to the present invention;
FIG. 5 is a schematic cross-sectional view of a magnetic conductive mechanism according to the present invention;
FIG. 6 is a schematic view of the structure of the guide block according to the present invention;
FIG. 7 is a schematic diagram of optimizing magnetic circuit of a magnetic steel set in the first embodiment of the invention;
FIG. 8 is a schematic diagram II of magnetic circuit optimization of a magnetic steel set in the present invention;
FIG. 9 is a schematic diagram III of magnetic circuit optimization of a magnetic steel set in the invention;
in the figure: 1. a rotor iron back; 11. a collar; 12. a shaft sleeve; 13. an interelectrode piece; 14. a screw; 2. a magnetic conduction mechanism; 21. pole shoe iron core; 22. an inner connecting plate; 23. an outer connecting plate; 24. a rubber press pad; 25. a convex edge; 26. an air flow seam; 3. a magnetic steel group; 31. a magnetic steel member; 32. fixing the shaft; 4. a guide block; 41. and adjusting the stud.
Detailed Description
Referring to fig. 1-9, in an embodiment of the present invention, an electric tricycle driving motor includes:
a stator (not shown in the figure), wherein an iron core of an embedded winding is arranged in the stator, a coil is wound on the iron core, and a motor rotating shaft is rotatably connected in the stator through a bearing; a rotor rotatably disposed in the stator; the rotor includes:
the middle part of the rotor iron back 1 is fixed with a shaft sleeve 12, and is connected with a motor rotating shaft through the shaft sleeve 12;
A collar 11 fixed to one side of the rotor back 1;
The magnetic steel groups 3 are circumferentially distributed on the rotor iron back 1, and adjacent magnetic steel groups 3 are arranged at intervals;
The magnetic conduction mechanisms 2 are arranged in one-to-one correspondence with the magnetic steel groups 3, and the magnetic conduction mechanisms 2 can be arranged between the shaft collar 11 and the shaft sleeve 12 in a matching way and position and install the magnetic steel groups 3 on the rotor iron back 1; the inter-pole pieces 13 and the magnetic conduction mechanism 2 are distributed in a staggered manner circumferentially, two positioning holes are formed in the inter-pole pieces 13, threaded holes are correspondingly formed in the rotor iron back 1, the inter-pole pieces 13 are detachably arranged on the rotor iron back 1, that is, the inter-pole pieces 13 can be fixed on the rotor iron back 1 through the threaded connection effect between the screws 14 and the threaded holes, and can also be connected through other modes, such as buckle connection or rivet connection, and the invention is not described; namely, the magnetic steel group 3 can be fixed on the rotor iron back 1 through the magnetic conduction mechanism 2, so that the protection of the magnetic steel group 3 is high, the magnetic steel group 3 is prevented from being damaged by impact, and the service life of the motor is prolonged.
Referring to fig. 2, in this embodiment, the cross section of the magnetic conduction mechanism 2 is in a fan-shaped structure, and convex edges 25 extend laterally on two sides of the magnetic conduction mechanism 2, and the inter-pole pieces 13 are pressed and fastened on the convex edges 25, so that the magnetic conduction mechanism 2 and the rotor back 1 are fixed, that is, after the magnetic conduction mechanism 2 is circumferentially arranged in the collar during installation, the inter-pole pieces 13 are directly placed between the magnetic conduction mechanisms 2 in a staggered manner, and at this time, a complete splicing plane is formed between the magnetic conduction mechanism 2 and the inter-pole pieces 13, and the installation accuracy is high.
Referring to fig. 2 and 3, as a preferred embodiment, the number of the magnetic steel groups 3 is even, the magnetic steel groups 3 are configured by four magnetic steel members 31 with fan-shaped structures, and are stacked up and down to form two layers, and the magnetic pole directions of the magnetic steel members 31 in each magnetic steel group 3 are arranged in the same direction; that is, the four magnetic steel components are distributed in the magnetic conduction mechanism in a Chinese character 'tian' shape, and at the moment, the N pole of each magnetic steel component faces upwards or downwards;
the magnetizing directions of the adjacent magnetic steel groups 3 are opposite.
In this embodiment, the fixed shafts 32 are fixed at the two radial ends of the magnetic steel members 31 in each magnetic steel group 3, the magnetic steel members 31 are arranged in the magnetic conduction mechanism 2 in a deflectable manner through the fixed shafts 32, the steering angle of the horizontal plane of the magnetic steel members 31 is not greater than 18 ° (the steering angle needs to be strictly controlled within the rated deflection range, if the deflection angle is too large, the coupling effect between the magnetic steel and the stator magnetic field may be weakened, and instead the output power of the motor is reduced), that is, according to the specification of the magnetic steel members 31 in the motor, the optimal magnetizing magnetic circuit (including the sizes of the iron core and the air gap) is formulated, so that the magnetic steel members are positioned and adjusted based on the magnetizing magnetic circuit to improve the power density of the disc-type motor, wherein the steering angle of the magnetic steel members 31 is not greater than 18 °, and when the steering angle of the magnetic steel members 31 is 0 °, the magnetic steel members 31 in the magnetic steel groups 3 cooperate to form a universal magnetic steel which is horizontally placed as a whole.
Referring to fig. 2, 4 and 5, in this embodiment, the magnetic conduction mechanism 2 includes: the pole shoe iron core 21, its cross-section is set up to the structure of falling U font, interior fishplate bar 22 and external fishplate bar 23 are installed to detachable in the pole shoe iron core 21, interior fishplate bar 22 and external fishplate bar 23 all with magnet steel group 3 looks adaptation, the four corners position that is located magnet steel group 3 in the pole shoe iron core 21 all is fixed with rubber pressure pad 24, and in the slope assembly, the rubber pressure pad can receive magnet steel component 3 extrusion to produce deformation when magnet steel component 3, guarantees magnet steel component installation tightness on the one hand, on the other hand can assist the steering adjustment of magnet steel component 3.
In this embodiment, the surface of the pole shoe core 21 is provided with the air flow slot 26, and the air flow slot 26 is used for blocking the induced eddy in the pole shoe core, reducing the eddy loss and hysteresis loss in the rotor core.
As a preferred embodiment, the side of the pole shoe core 21 far from the shaft sleeve 12 is provided with an opening structure, the shaft collar 11 is provided with a plurality of guide blocks 4 corresponding to the pole shoe core 21 in a radial sliding manner, one end of each guide block 4 extends into the magnetic steel group 3 through the opening of the pole shoe core 21, the other end of each guide block 4 is rotatably provided with an adjusting stud 41, and the adjusting studs 41 are in threaded connection with the shaft collar 11.
Referring to fig. 5-9, in this embodiment, the cross section of the end portion of the guide block 4 is rectangular, the other end of the guide block is diamond-shaped, and when the end portion of the guide block 4 is partially extended into the magnetic steel groups 3, the magnetic steel members 31 in each magnetic steel group 3 are horizontally arranged, and the magnetic steel members 31 can be deflected by the change of the cross section of the guide block 4 along with the radial displacement adjustment of the guide block 4, and the guide block 4 can approach or separate from the motor axis direction, so as to achieve the radial sliding adjustment;
In the first embodiment, before the rotor structure is assembled, the stud can be manually rotated and adjusted, so that the guide block 4 slides into the magnetic steel group 3 in a uniform extending amount, and the magnetic steel components 31 in the pole shoe core are horizontally and rhombically arranged, so as to optimize the magnetizing magnetic circuit, and the method has the remarkable advantages that:
First, optimizing a magnetizing magnetic circuit: by adjusting the relative position and angle of the magnetic steel member 31, the magnetic flux path inside the motor can be optimized, so that magnetic lines of force are more concentrated and efficient, the magnetic flux density and torque output capacity of the motor are improved, and the power density and efficiency of the motor are improved;
Secondly, adapt to different electric tricycle specification demands: different magnetic steel arrangement modes correspond to different magnetic field distribution and motor performance characteristics. For example, the horizontal arrangement is suitable for the requirement of uniform magnetic field, in the aspect of selecting motors with different specifications of the electric tricycle, the horizontally arranged magnetic steel structure is easy to standardize and scale production, the design is easy to adjust and copy in motors with different sizes or power levels, the complexity of the design and production is reduced, and the electric tricycle manufacturer is facilitated to realize the universalization and modularization of the magnetic steel assembly on different model product lines, so that the cost is reduced and the production efficiency is improved. Meanwhile, the horizontal arrangement is easy to maintain and replace, so that the convenience of the after-market of the electric tricycle is improved;
In the second embodiment, before the rotor structure is assembled, the lower side surface of the diamond-shaped end part of the guide block 4 is weakened and thinned, at this time, the end part of the guide block 4 is in a triangular structure, and the magnetic steel components 31 in the pole shoe core can be correspondingly arranged in a triangular shape;
In the third embodiment, before the rotor structure is assembled, the upper side surface of the diamond-shaped end part of the guide block 4 is weakened and thinned, at this time, the end part of the guide block 4 is in an inverted triangle structure, and the magnetic steel components 31 in the pole shoe core can be correspondingly arranged in an inverted triangle shape;
The diamond-shaped, triangular or inverted triangular arrangement is more suitable for application occasions requiring specific magnetic field gradients and moment characteristics, such as improvement of starting torque, optimization of load response (namely, magnetic field distribution can be automatically adjusted according to load change, so that the motor can have better torque response in light load, heavy load and even abrupt load, and driving comfort and safety are improved).
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. An electric tricycle driving motor, characterized in that it includes:
The stator is internally provided with an iron core of an embedded winding, a coil is wound on the iron core, and a motor rotating shaft is rotatably connected in the stator through a bearing;
a rotor rotatably disposed in the stator, the rotor comprising:
the rotor iron back (1) is fixedly provided with a shaft sleeve (12) at the middle part, and is connected with a motor rotating shaft through the shaft sleeve (12);
A collar (11) fixed to one side of the rotor back (1);
The magnetic steel groups (3) are circumferentially distributed on the rotor iron back (1), and adjacent magnetic steel groups (3) are arranged at intervals;
The magnetic conduction mechanisms (2) are arranged in one-to-one correspondence with the magnetic steel groups (3), the magnetic conduction mechanisms (2) can be arranged between the shaft collar (11) and the shaft sleeve (12) in a matched mode, and the magnetic steel groups (3) are arranged on the rotor iron back (1) in a positioning mode; and inter-pole pieces (13) are distributed with the circumference of the magnetic conduction mechanism (2) in a staggered manner, two positioning holes are formed in the inter-pole pieces (13), threaded holes are correspondingly formed in the rotor iron back (1), and the inter-pole pieces (13) are detachably arranged on the rotor iron back (1).
2. The electric tricycle drive motor of claim 1, wherein: the cross section of the magnetic conduction mechanism (2) is in a fan-shaped structure, convex edges (25) are extended laterally at two sides of the magnetic conduction mechanism (2), and the interelectrode sheets (13) are pressed and buckled on the convex edges (25) so that the magnetic conduction mechanism (2) is fixed with the rotor back iron (1).
3. The electric tricycle drive motor of claim 1, wherein: the number of the magnetic steel groups (3) is even, the magnetic steel groups (3) are constructed by adopting four magnetic steel components (31) with fan-shaped structures, and are stacked up and down to form two layers, and the magnetic pole directions of the magnetic steel components (31) in each magnetic steel group (3) are arranged in the same direction; the magnetizing directions of the adjacent magnetic steel groups (3) are opposite.
4. The electric tricycle drive motor of claim 3 wherein: the fixed shafts (32) are fixed at the two radial ends of the magnetic steel members (31) in each magnetic steel group (3), the magnetic steel members (31) are arranged in the magnetic conduction mechanism (2) in a deflectable way through the fixed shafts (32), and the steering angle of the horizontal plane of the magnetic steel members (31) is not more than 18 degrees.
5. The electric tricycle drive motor of claim 1, wherein: the magnetic conduction mechanism (2) comprises: the pole shoe iron core (21) is of an inverted U-shaped structure in cross section, an inner connecting plate (22) and an outer connecting plate (23) are detachably arranged in the pole shoe iron core (21), the inner connecting plate (22) and the outer connecting plate (23) are matched with the magnetic steel group (3), and rubber pressing pads (24) are fixed at four corners of the magnetic steel group (3) in the pole shoe iron core (21).
6. The electric tricycle drive motor of claim 5 wherein: an airflow seam (26) is formed in the surface of the pole shoe iron core (21).
7. The electric tricycle drive motor of claim 5 wherein: one side of the pole shoe iron core (21), which is far away from the shaft sleeve (12), is provided with an opening structure, a plurality of guide blocks (4) corresponding to the pole shoe iron core (21) are radially arranged on the shaft collar (11) in a sliding manner, one end of each guide block (4) extends into the magnetic steel group (3) through the opening of the pole shoe iron core (21), the other end of each guide block (4) is rotatably provided with an adjusting stud (41), and the adjusting studs (41) are in threaded connection with the shaft collar (11).
8. The electric tricycle drive motor of claim 7 wherein: the end section of the guide block (4) is of a rectangular structure, the other end of the guide block is of a diamond structure, and when the end part of the guide block (4) locally stretches into the magnetic steel groups (3), magnetic steel components (31) in each magnetic steel group (3) are horizontally arranged, and the magnetic steel components (31) can deflect due to the change of the section of the guide block (4) along with the radial displacement adjustment of the guide block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410459977.3A CN118074392B (en) | 2024-04-17 | 2024-04-17 | Driving motor of electric tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410459977.3A CN118074392B (en) | 2024-04-17 | 2024-04-17 | Driving motor of electric tricycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118074392A true CN118074392A (en) | 2024-05-24 |
| CN118074392B CN118074392B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410459977.3A Active CN118074392B (en) | 2024-04-17 | 2024-04-17 | Driving motor of electric tricycle |
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| Country | Link |
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| CN (1) | CN118074392B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210265884A1 (en) * | 2018-09-24 | 2021-08-26 | Whylot Sas | Axial-flux rotor with magnets and body made of layers of composite with fibers of different orientations |
| CN116054519A (en) * | 2023-03-03 | 2023-05-02 | 上海盘毂动力科技股份有限公司 | Axial magnetic field motor rotor structure |
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2024
- 2024-04-17 CN CN202410459977.3A patent/CN118074392B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210265884A1 (en) * | 2018-09-24 | 2021-08-26 | Whylot Sas | Axial-flux rotor with magnets and body made of layers of composite with fibers of different orientations |
| CN116054519A (en) * | 2023-03-03 | 2023-05-02 | 上海盘毂动力科技股份有限公司 | Axial magnetic field motor rotor structure |
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| Publication number | Publication date |
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| CN118074392B (en) | 2024-07-02 |
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