CN220985395U - Motorcycle and motor thereof - Google Patents
Motorcycle and motor thereof Download PDFInfo
- Publication number
- CN220985395U CN220985395U CN202322787962.3U CN202322787962U CN220985395U CN 220985395 U CN220985395 U CN 220985395U CN 202322787962 U CN202322787962 U CN 202322787962U CN 220985395 U CN220985395 U CN 220985395U
- Authority
- CN
- China
- Prior art keywords
- motor
- centrifugal force
- silicon steel
- magnetism isolating
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 83
- 230000005389 magnetism Effects 0.000 claims abstract description 67
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000013011 mating Effects 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000002955 isolation Methods 0.000 claims description 12
- 230000004308 accommodation Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000035699 permeability Effects 0.000 description 12
- 230000004907 flux Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a motorcycle and a motor thereof. The power assembly is drivingly connected to the travel assembly and includes a motor. The motor includes a housing, a stator, a rotor, and windings. The rotor comprises a rotating shaft, a rotor core and a permanent magnet, wherein the rotor core comprises a magnetic steel groove, the permanent magnet is arranged in the magnetic steel groove, the magnetic steel groove comprises a first magnetism isolating groove and a second magnetism isolating groove, the first magnetism isolating groove is arranged at two ends of the permanent magnet, the first magnetism isolating groove is far away from the rotating shaft, and the second magnetism isolating groove is close to the rotating shaft. The first magnetism isolating groove is formed with a communicating state and a closing state by the rotation centrifugal force of the motor, when the rotation centrifugal force of the motor is smaller than a preset centrifugal force, the first magnetism isolating groove is in a communicating state with the outer edge of the silicon steel sheet, and when the rotation centrifugal force of the motor is larger than or equal to the preset centrifugal force, the first magnetism isolating groove is in a closing state with the outer edge of the silicon steel sheet. Through the arrangement, the voltage of the motor is kept stable, so that the working efficiency of the motor is improved.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a motorcycle and a motor thereof.
Background
With the change of the environment, the demand of people for motorcycles is also becoming more and more diversified. Permanent magnet motors are characterized by high power density and high efficiency, and thus become one of the best choices for motor drive motors.
In the prior art, as the centrifugal force of the rotor of the permanent magnet motor becomes larger, in order to maintain the peak torque of the permanent magnet motor unchanged, the thickness of the magnetism isolating bridge needs to be increased. However, as the thickness of the magnetic isolation bridge increases, the magnetic isolation effect of the magnetic isolation bridge also decreases, the main flux leakage of the permanent magnet rotor increases, and the output torque of the non-weak magnetic area of the motor is reduced, thereby reducing the working efficiency of the motor.
Disclosure of utility model
In order to solve the defects of the prior art, the utility model aims to provide a motorcycle, and the motor of the motorcycle is high in working efficiency.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
A motorcycle includes a frame, a running assembly, and a power assembly. The walking assembly is arranged on the lower side of the frame. The power assembly is drivingly connected to the travel assembly and includes a motor. The motor includes a housing, a stator, a rotor, and windings. An accommodating space is formed in the housing. The stator is at least partially disposed in the receiving space. The rotor is at least partially disposed in the receiving space, and the stator is at least partially disposed around the rotor. The windings are at least partially disposed on the stator. The rotor comprises a rotating shaft, a rotor iron core and a permanent magnet, wherein the rotor iron core is sleeved on the rotating shaft and synchronously rotates with the rotating shaft, the rotating shaft is rotationally connected with the shell, the rotor iron core comprises a plurality of silicon steel sheets, the silicon steel sheets comprise a plurality of magnetic steel grooves, the permanent magnet is arranged in the magnetic steel grooves, the magnetic steel grooves comprise first magnetism isolating grooves and second magnetism isolating grooves which are arranged at two ends of the permanent magnet, the first magnetism isolating grooves are far away from the rotating shaft, and the second magnetism isolating grooves are close to the rotating shaft. The first magnetism isolating slot is in a communication state communicated with the outer edge of the silicon steel sheet when the rotating centrifugal force of the motor is smaller than a preset centrifugal force, and is in a closed state separated from the outer edge of the silicon steel sheet when the rotating centrifugal force of the motor is larger than or equal to the preset centrifugal force.
Further, the silicon steel sheet includes the silicon steel body and with silicon steel body integrated into one piece's cooperation portion, silicon steel body and cooperation portion are formed with the magnet steel groove, and cooperation portion is including keeping away from the contact end of pivot, and the silicon steel body is including the link of keeping away from the pivot, and contact end and link are formed with first magnetism isolation groove.
Further, the matching part is subjected to the rotation centrifugal force of the motor to generate relative displacement with the silicon steel body, when the rotation centrifugal force of the motor is smaller than the preset centrifugal force, the connecting end and the contact end are separated, so that the first magnetism isolating groove is in a communicating state, and when the rotation centrifugal force of the motor is larger than or equal to the preset centrifugal force, the connecting end and the contact end are abutted, so that the first magnetism isolating groove is in a closing state.
Further, the silicon steel sheet still includes connecting portion, and cooperation portion and silicon steel body pass through connecting portion and connect, and the ratio of the maximum width of cooperation portion along pivot circumference and the maximum width of connecting portion along pivot circumference is greater than or equal to 15 and less than or equal to 23.
Further, the cross section of the mating portion is basically fan-shaped, so that two magnetic steel grooves distributed in a V shape are formed after the mating portion is connected with the silicon steel body, and the connecting portion is located between the two magnetic steel grooves.
Further, the contact end is at least partially disposed between the shaft and the connection end.
Further, the contact end and the connecting section at least partially coincide, as seen in a radial direction of the rotation axis.
Further, when the first magnetism isolating slot is in the communicating state, the minimum interval between the connecting end and the contact end is set to be 0.1mm or more and 0.7mm or less.
An electric machine includes a housing, a stator, a rotor, and windings. An accommodating space is formed in the housing. The stator is at least partially disposed in the receiving space. The rotor is at least partially disposed in the receiving space, and the stator is at least partially disposed around the rotor. The windings are at least partially disposed on the stator mechanism. The rotor comprises a rotating shaft, a rotor iron core and a permanent magnet, wherein the rotor iron core is sleeved on the rotating shaft and synchronously rotates with the rotating shaft, the rotating shaft is rotationally connected with the shell, the rotor iron core comprises a plurality of silicon steel sheets, the silicon steel sheets comprise a plurality of magnetic steel grooves, the permanent magnet is arranged in the magnetic steel grooves, the magnetic steel grooves comprise first magnetism isolating grooves and second magnetism isolating grooves which are arranged at two ends of the permanent magnet, the first magnetism isolating grooves are far away from the rotating shaft, and the second magnetism isolating grooves are close to the rotating shaft. The first magnetism isolating slot is in a communication state communicated with the outer edge of the silicon steel sheet when the rotating centrifugal force of the motor is smaller than a preset centrifugal force, and is in a closed state separated from the outer edge of the silicon steel sheet when the rotating centrifugal force of the motor is larger than or equal to the preset centrifugal force.
Further, the silicon steel sheet comprises a silicon steel body and a matching part integrally formed with the silicon steel body, the silicon steel body and the matching part are provided with magnetic steel grooves, the matching part comprises a contact end far away from the rotating shaft, the silicon steel body comprises a connecting end far away from the rotating shaft, and the contact end and the connecting end are provided with first magnetic isolation grooves; the cooperation portion receives the rotation centrifugal force of motor in order to take place with the relative displacement of silicon steel body, and when the rotation centrifugal force of motor was less than the default centrifugal force, link and contact end separation to make first magnetism isolating slot be in the intercommunication state, when the rotation centrifugal force of motor more than or equal to default centrifugal force, link and contact end butt, so that first magnetism isolating slot is in the closed state.
The first magnetism isolating groove on the motor of the motorcycle is subjected to the rotation centrifugal force of the motor to form a communication state and a closing state, so that the voltage of the motor is kept stable, and the working efficiency of the motor is improved.
Drawings
Fig. 1 is a schematic view of the structure of a motorcycle of the present utility model.
Fig. 2 is a schematic structural view of a rotor of the motorcycle of the present utility model.
Fig. 3 is a schematic view of the structure of the motorcycle of the present utility model when the silicon steel sheet is in a connected state.
Fig. 4 is an enlarged view of a portion of fig. 3 a in accordance with the present utility model.
Fig. 5 is a schematic view of the structure of the motorcycle of the present utility model in a closed state.
Fig. 6 is a partial enlarged view of the present utility model at B in fig. 5.
Detailed Description
In order to make the present utility model better understood by those skilled in the art, the technical solutions in the specific embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 and 2, a motorcycle 100 includes a frame 11, a traveling assembly 12, and a power assembly 13. The frame 11 is used to form the basic frame of the motorcycle 100. The traveling assembly 12 is disposed under the frame 11, and the motorcycle 100 moves through the traveling assembly 12. The power assembly 13 is at least partially disposed on the frame 11. The power assembly 13 is capable of transmitting kinetic energy to the traveling assembly 12, thereby effecting movement of the traveling assembly 12. The power assembly 13 includes a motor 131, the motor 131 including a housing 1311, a stator (not shown), a rotor 1312, and windings (not shown). Housing 1311 has an accommodation space formed therein, and stator, rotor 1312, and windings are at least partially disposed in the accommodation space (not shown). The stator and windings are disposed at least partially around the rotor 1312, with the windings being disposed at least partially on the stator.
As shown in fig. 2 to 4, specifically, the rotor 1312 includes a rotating shaft 1312a, a rotor core 1312b, and a permanent magnet 1312c. Wherein, the rotating shaft 1312a is used for driving the rotor core 1312b to rotate; the rotor core 1312b is used for stabilizing the magnetic field of the motor 131; the permanent magnet 1312c is used to generate a magnetic field of the motor 131. More specifically, the rotor core 1312b is sleeved on the rotating shaft 1312a and rotates synchronously with the rotating shaft 1312a, and the rotating shaft 1312a is rotatably connected with the housing 1311. The rotor core 1312b includes a plurality of silicon steel sheets 1312d, and the silicon steel sheets 1312d include a plurality of magnetic steel grooves 1312e. The silicon steel sheet 1312d serves to improve the magnetic permeability of the rotor core 1312 b. The permanent magnet 1312c is disposed in the magnetic steel groove 1312e, and in this embodiment, the magnetic steel groove 1312e includes a first magnetism isolating groove 1312h and a second magnetism isolating groove 1312i disposed at two ends of the permanent magnet 1312c, the first magnetism isolating groove 1312h is disposed away from the rotating shaft 1312a, and the second magnetism isolating groove 1312i is disposed close to the rotating shaft 1312 a.
As shown in fig. 2 to 5, as one implementation, the first magnetism isolating slot 1312h is centrifugal force by rotation of the motor 131 to form a communication state and a closed state. When the rotational centrifugal force of the motor 131 is smaller than the preset centrifugal force, the first magnetism isolating groove 1312h is in a communication state of being communicated with the outer edge of the silicon steel sheet 1312 d; when the rotational centrifugal force of the motor 131 is equal to or greater than the preset centrifugal force, the first magnetism isolating groove 1312h is in a closed state spaced apart from the outer edge of the silicon steel sheet 1312 d. The preset centrifugal force refers to the centrifugal force of the motor 131 when the first magnetism isolating slot 1312h is in a critical state between the connected state and the closed state.
Specifically, when the first magnetism isolating groove 1312h is communicated with the outer edge of the silicon steel sheet 1312d, the ratio of the relative magnetic permeability in the air to the relative magnetic permeability of the silicon steel sheet 1312d is smaller than 1, the magnetism isolating effect between the first magnetism isolating groove 1312h and the outer edge of the silicon steel sheet 1312d is good, as the rotation speed of the motor 131 increases, the ratio of the relative magnetic permeability in the air to the relative magnetic permeability of the silicon steel sheet 1312d is continuously increased, so that the magnetism isolating effect between the first magnetism isolating groove 1312h and the outer edge of the silicon steel sheet 1312d is continuously decreased, the torque of the motor 131 is continuously increased, when the torque of the motor 131 reaches the preset torque, the centrifugal force of the motor 131 is also increased, and when the centrifugal force of the motor 131 is larger than the preset centrifugal force, the ratio of the relative magnetic permeability in the air to the relative magnetic permeability of the silicon steel sheet 1312d is larger than 1, so that the magnetism isolating effect between the first magnetism isolating groove 1312h and the silicon steel sheet 1312d is reduced, the required voltage of the motor 131 is also made to be larger than the voltage provided by a power supply, and the voltage of the motor 131 is unstable. At this time, the first magnetic isolation groove 1312h is separated from the outer edge of the silicon steel sheet 1312d, and the ratio of the relative magnetic permeability in the air to the relative magnetic permeability of the silicon steel sheet 1312d is continuously decreased, so as to improve the magnetic isolation effect between the first magnetic isolation groove 1312h and the outer edge of the silicon steel sheet 1312d, so that the rotation speed of the motor 131 is consistent with the preset rotation speed. Wherein, the relative permeability refers to the ratio of the permeability and the positive air permeability of the special medium; the preset torque is a torque when the rotational speed of the motor 131 is equal to or greater than the optimal operation rotational speed of the motor 131; the preset rotational speed refers to an optimal operation rotational speed of the motor 131. Through the arrangement, the first magnetism isolating groove 1312h can realize the mutual conversion between the communication state and the closed state, so that the stability of the voltage of the motor 131 is improved when the rotating speed of the motor 131 is greater than or equal to the preset rotating speed, the working stability of the motor 131 is improved, and the working efficiency of the motor 131 is further improved; it is also beneficial to reduce the usage amount of the silicon steel sheet 1312d of the motor 131 when the rotation speed of the motor 131 is smaller than the preset rotation speed, namely, the thickness of the silicon steel sheet 1312d is reduced, so that the production cost of the silicon steel sheet 1312d is reduced, and further, the production cost of the motor 131 is reduced.
As one implementation, the silicon steel sheet 1312d includes a silicon steel body 1312f and a mating portion 1312g. The silicon steel body 1312f and the mating portion 1312g are integrally formed. The silicon steel body 1312f and the mating portion 1312g are formed with a magnetic steel groove 1312e. The mating portion 1312g includes a contact end 1312k, and the silicon steel body 1312f includes a connection end 1312j, the contact end 1312k and the connection end 1312j being formed with a first magnetism isolating slot 1312h. Specifically, the contact end 1312k and the connection end 1312j are both disposed away from the rotation shaft 1312 a. Through the arrangement, the passing efficiency of the electromagnetic in the silicon steel sheet 1312d can be improved, so that the utilization rate of the electromagnetic by the motor 131 is improved, and the working efficiency of the motor 131 is further improved.
Specifically, the fitting portion 1312g is subjected to rotational centrifugal force of the motor 131 to undergo relative displacement with the silicon steel body 1312 f. When the rotational centrifugal force of the motor 131 is less than the preset centrifugal force, the connection end 1312j and the contact end 1312k are separated to place the first magnetism isolating slot 1312h in a communicating state; when the rotational centrifugal force of the motor 131 is equal to or greater than the preset centrifugal force, the connecting end 1312j and the contact end 1312k abut against each other, so that the first magnetic isolation slot 1312h is in a closed state. More specifically, when the rotational speed of the motor 131 is less than the preset rotational speed, that is, when the centrifugal force of the rotation of the motor 131 is less than the preset centrifugal force, the connection end 1312j and the contact end 1312k are separated, and at this time, the main magnetic flux of the silicon steel sheet 1312d is small, the magnetic fluxes passing through the connection end 1312j and the contact end 1312k are small, so that the magnetism isolating efficiency between the connection end 1312j and the contact end 1312k is high. As the rotational speed of the motor 131 increases, the main magnetic flux of the silicon steel sheet 1312d increases, so that the magnetic flux passing through the connection end 1312j and the contact end 1312k increases, the magnetic shielding efficiency between the connection end 1312j and the contact end 1312k decreases, the torque of the motor 131 increases, and the rotational speed of the motor 131 increases. When the torque of the motor 131 reaches the preset torque, if the centrifugal force of the motor 131 is greater than the preset centrifugal force, the main magnetic flux of the silicon steel sheet 1312d is large, the magnetic flux passing through the connection end 1312j and the contact end 1312k increases, and the magnetic isolation efficiency between the connection end 1312j and the contact end 1312k decreases, so that the required voltage of the motor 131 is greater than the voltage supplied by the power supply, and the voltage of the motor 131 is unstable. At this time, the connection end 1312j and the contact end 1312k are abutted, so that the magnetic flux passing through the connection end 1312j and the contact end 1312k is reduced, and the magnetic isolation efficiency between the connection end 1312j and the contact end 1312k is improved, so that the required voltage of the motor 131 is equal to the voltage provided by the power supply, and the rotation speed of the motor 131 is equal to the preset rotation speed. With the above arrangement, in the case that the rotational speed of the motor 131 is less than the preset rotational speed, the torque when the motor 131 operates can be increased, so that the time interval from the start of the motor 131 to the time when the rotational speed of the motor 131 is greater than or equal to the preset rotational speed is reduced; under the condition that the rotation speed of the motor 131 is greater than or equal to the preset rotation speed, the stability of the voltage of the motor 131 can be improved, so that the stability of the rotation of the rotor 1312 is improved, and the working efficiency of the motor 131 is further improved. The magnetic flux refers to a physical quantity of the magnetic field distribution of the motor 131; the main magnetic flux is magnetic flux passing through the rotor core 1312 b.
As one implementation, the silicon steel sheet 1312d further includes a connection portion 1312l. The mating portion 1312g and the silicon steel body 1312f are connected by a connecting portion 1312l. The ratio of the maximum width of the fitting portion 1312g in the circumferential direction of the rotation shaft 1312a to the maximum width of the connecting portion 1312l in the circumferential direction of the rotation shaft 1312a may be set to 15 or more and 23 or less. Specifically, the ratio of the maximum width of the fitting portion 1312g in the circumferential direction of the rotation shaft 1312a to the maximum width of the connecting portion 1312l in the circumferential direction of the rotation shaft 1312a may be set to 17 or more and 21 or less. More specifically, the ratio of the maximum width of the fitting portion 1312g in the circumferential direction of the rotation shaft 1312a to the maximum width of the connecting portion 1312l in the circumferential direction of the rotation shaft 1312a may also be set to 19 or more and 20 or less. Through the arrangement, the unstable matching part 1312g caused by the overlarge ratio of the maximum width of the matching part 1312g along the circumferential direction of the rotating shaft 1312a to the maximum width of the connecting part 1312l along the circumferential direction of the rotating shaft 1312a can be prevented, so that the rotating speed of the motor 131 is more than or equal to the preset rotating speed, and the matching part 1312g can be prevented from falling off from the silicon steel body 1312f, so that the connection stability of the matching part 1312g and the silicon steel body 1312f is improved; the ratio of the maximum width of the mating portion 1312g along the circumferential direction of the rotating shaft 1312a to the maximum width of the connecting portion 1312l along the circumferential direction of the rotating shaft 1312a is too small to cause the distance of the connecting portion 1312l to be too large, so that the situation that the first magnetism isolating slot 1312h on the magnetic steel slot 1312e cannot displace on the silicon steel sheet 1312d due to the too large distance between the two magnetic steel slots 1312e is avoided, and further, when the centrifugal force of the motor 131 is larger than the preset centrifugal force, the connecting end 1312j and the contact end 1312k can be contacted, so that the voltage of the motor 131 is always smaller than or equal to the voltage provided by a power supply, the running stability of the motor 131 is improved, and the working efficiency of the motor 131 is also improved.
As an implementation manner, the cross section of the mating portion 1312g is substantially fan-shaped, so that two magnetic steel grooves 1312e distributed in a V-shape are formed after the mating portion 1312g and the silicon steel body 1312f are connected, and the connecting portion 1312l is located between the two magnetic steel grooves 1312 e. Through the arrangement, friction between the stator and the rotor 1312 is reduced, so that the rotating speed and output power of the rotor 1312 are improved, and the working efficiency of the motor 131 is further improved. In addition, noise and vibration of the motor 131 are reduced.
As one implementation, the contact end 1312k is at least partially disposed between the rotating shaft 1312a and the connecting end 1312 j. The contact end 1312k at least partially coincides with the connection end 1312j as viewed in the radial direction of the rotational axis 1312 a. Through the above arrangement, when the rotation speed of the motor 131 is greater than or equal to the preset rotation speed, the contact end 1312k can be quickly abutted with the connection end 1312j, so that the abutting time of the contact end 1312k and the connection end 1312j is reduced, the voltage of the motor 131 is always less than or equal to the voltage provided by the power supply, the running stability of the motor 131 is further improved, and the working efficiency of the motor 131 is also improved.
In the present embodiment, when the first magnetism isolating slot 1312h is in the communication state, the minimum interval L between the connection end 1312j and the contact end 1312k may be set to 0.1mm or more and 0.7mm or less. Specifically, the minimum interval L between the connection terminal 1312j and the contact terminal 1312k may be set to 0.2mm or more and 0.6mm or less. More specifically, the minimum interval L between the connection terminal 1312j and the contact terminal 1312k may also be set to 0.3mm or more and 0.5mm or less. Through the arrangement, the contact end 1312k and the connection end 1312j can be prevented from abutting when the centrifugal force of the motor 131 is smaller than the preset centrifugal force due to the fact that the minimum interval L between the connection end 1312j and the contact end 1312k is too small, the torque of the motor 131 is prevented from being smaller than the preset torque, the rotating speed of the motor 131 can be enabled to reach the preset rotating speed, and the working efficiency of the motor 131 is improved. In addition, through the above arrangement, the contact end 1312k and the connection end 1312j are prevented from being separated when the centrifugal force of the motor 131 is larger than the preset centrifugal force due to the fact that the minimum interval L between the connection end 1312j and the contact end 1312k is too large, the voltage required by the motor 131 is prevented from being larger than the voltage provided by the power supply, the voltage of the motor 131 can be kept stable, and the working efficiency of the motor 131 is improved.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. A motorcycle, comprising:
a frame;
the walking assembly is arranged on the lower side of the frame;
The power assembly is in transmission connection with the walking assembly and comprises a motor;
The motor includes:
A housing in which an accommodation space is formed;
a stator at least partially disposed in the accommodation space;
A rotor at least partially disposed in the receiving space, the stator being at least partially disposed around the rotor;
A winding disposed at least partially on the stator;
The rotor comprises a rotating shaft, a rotor iron core and a permanent magnet, wherein the rotor iron core is sleeved on the rotating shaft and rotates synchronously with the rotating shaft, the rotating shaft is rotationally connected with the shell, the rotor iron core comprises a plurality of silicon steel sheets, the silicon steel sheets comprise a plurality of magnetic steel grooves, the permanent magnet is arranged in the magnetic steel grooves, the magnetic steel grooves comprise a first magnetism isolating groove and a second magnetism isolating groove which are arranged at two ends of the permanent magnet, the first magnetism isolating groove is far away from the rotating shaft, and the second magnetism isolating groove is close to the rotating shaft;
It is characterized in that the method comprises the steps of,
The first magnetism isolating groove is in a communication state and a closing state by the rotating centrifugal force of the motor, when the rotating centrifugal force of the motor is smaller than a preset centrifugal force, the first magnetism isolating groove is in the communication state communicated with the outer edge of the silicon steel sheet, and when the rotating centrifugal force of the motor is greater than or equal to the preset centrifugal force, the first magnetism isolating groove is in the closing state separated from the outer edge of the silicon steel sheet.
2. The motorcycle of claim 1, wherein the silicon steel sheet comprises a silicon steel body and a mating portion integrally formed with the silicon steel body, the silicon steel body and the mating portion are formed with the magnetic steel groove, the mating portion comprises a contact end far away from the rotating shaft, the silicon steel body comprises a connection end far away from the rotating shaft, and the contact end and the connection end are formed with the first magnetism isolating groove.
3. The motorcycle according to claim 2, wherein the engaging portion is subjected to a rotational centrifugal force of the motor to be displaced relative to the silicon steel body, the connecting end and the contact end are separated to bring the first magnetism isolating groove into the communication state when the rotational centrifugal force of the motor is smaller than the preset centrifugal force, and the connecting end and the contact end are abutted to bring the first magnetism isolating groove into the closed state when the rotational centrifugal force of the motor is equal to or larger than the preset centrifugal force.
4. A motorcycle according to claim 3, wherein the silicon steel sheet further comprises a connecting portion, the mating portion and the silicon steel body are connected by the connecting portion, and a ratio of a maximum width of the mating portion in the circumferential direction of the rotation shaft to a maximum width of the connecting portion in the circumferential direction of the rotation shaft is 15 or more and 23 or less.
5. The motorcycle of claim 4, wherein the cross section of the mating portion is substantially fan-shaped, so that two magnetic steel grooves are formed in a V-shape after the mating portion and the silicon steel body are connected, and the connecting portion is located between the two magnetic steel grooves.
6. A motorcycle according to claim 3, wherein the contact end is at least partially disposed between the spindle and the connection end.
7. A motorcycle according to claim 3, wherein the contact end and the connecting section at least partially coincide, as viewed in a radial direction of the rotation axis.
8. The motorcycle according to claim 2, wherein a minimum interval between the connection end and the contact end is set to 0.1mm or more and 0.7mm or less when the first magnetism isolating slot is in the communication state.
9. An electric machine, comprising:
A housing in which an accommodation space is formed;
a stator at least partially disposed in the accommodation space;
A rotor at least partially disposed in the receiving space, the stator being at least partially disposed around the rotor;
A winding disposed at least partially on the stator mechanism;
The rotor comprises a rotating shaft, a rotor iron core and a permanent magnet, wherein the rotor iron core is sleeved on the rotating shaft and rotates synchronously with the rotating shaft, the rotating shaft is rotationally connected with the shell, the rotor iron core comprises a plurality of silicon steel sheets, the silicon steel sheets comprise a plurality of magnetic steel grooves, the permanent magnet is arranged in the magnetic steel grooves, the magnetic steel grooves comprise a first magnetism isolating groove and a second magnetism isolating groove which are arranged at two ends of the permanent magnet, the first magnetism isolating groove is far away from the rotating shaft, and the second magnetism isolating groove is close to the rotating shaft;
It is characterized in that the method comprises the steps of,
The first magnetism isolating groove is in a communication state and a closing state by the rotating centrifugal force of the motor, when the rotating centrifugal force of the motor is smaller than a preset centrifugal force, the first magnetism isolating groove is in the communication state communicated with the outer edge of the silicon steel sheet, and when the rotating centrifugal force of the motor is greater than or equal to the preset centrifugal force, the first magnetism isolating groove is in the closing state separated from the outer edge of the silicon steel sheet.
10. The electric machine of claim 9, wherein the silicon steel sheet comprises a silicon steel body and a mating portion integrally formed with the silicon steel body, the silicon steel body and the mating portion forming the magnetic steel groove, the mating portion comprising a contact end remote from the rotating shaft, the silicon steel body comprising a connection end remote from the rotating shaft, the contact end and the connection end forming the first magnetic isolation groove; the matching part is subjected to the rotating centrifugal force of the motor so as to generate relative displacement with the silicon steel body, when the rotating centrifugal force of the motor is smaller than the preset centrifugal force, the connecting end is separated from the contact end so that the first magnetism isolating groove is in the communication state, and when the rotating centrifugal force of the motor is larger than or equal to the preset centrifugal force, the connecting end is abutted with the contact end so that the first magnetism isolating groove is in the closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322787962.3U CN220985395U (en) | 2023-10-17 | 2023-10-17 | Motorcycle and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322787962.3U CN220985395U (en) | 2023-10-17 | 2023-10-17 | Motorcycle and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220985395U true CN220985395U (en) | 2024-05-17 |
Family
ID=91035327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322787962.3U Active CN220985395U (en) | 2023-10-17 | 2023-10-17 | Motorcycle and motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220985395U (en) |
-
2023
- 2023-10-17 CN CN202322787962.3U patent/CN220985395U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100566088C (en) | A kind of integrated alternating current electric motor for mixed power automobile | |
| CN103812248A (en) | Electrical machine and rotor therefor | |
| CN220985395U (en) | Motorcycle and motor thereof | |
| CN204615556U (en) | ISG motor and the syndeton with engine thereof | |
| CN207926379U (en) | Permanent magnet synchronous motor | |
| CN108667248B (en) | Motor | |
| CN211089406U (en) | Double-layer rotor motor | |
| CN212717261U (en) | Industrial fan based on low-speed large-torque magnetic regulating motor | |
| CN105720772B (en) | A kind of electric car composite excitation motor | |
| CN209896791U (en) | Electric machine | |
| CN105871118A (en) | Warm wind and power generation integral machine of tricycle | |
| CN100533921C (en) | Low-speed motor for electric bicycle | |
| CN201171179Y (en) | Fourth order DC electric machine for offset electrical brush | |
| CN206017029U (en) | There is the intelligent fuel pump of double rotational directions noise reduction rotor | |
| CN220775487U (en) | Brushless motor rotor | |
| CN216122077U (en) | Electric speed flywheel machine | |
| CN200994095Y (en) | Motor for automobile electric controlled mechanical speed variator | |
| CN210629233U (en) | Reluctance motor | |
| CN217522719U (en) | Miniature external rotor brushless direct current motor | |
| CN211930391U (en) | Compact permanent magnet motor | |
| CN220234454U (en) | Scooter motor | |
| CN219760731U (en) | Motor rotor structure and motor | |
| CN211321176U (en) | Combined motor and wheel driving system | |
| CN109660076A (en) | brushless motor for automobile EPS | |
| CN215870949U (en) | Brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |