High-power motor rotor

Abstract

The utility model belongs to motor rotor field, specifically is high -power motor rotor, including motor rotor body, the outer end of motor rotor body is equipped with the magnetic shoe spare, the inner end of magnetic shoe spare is equipped with a plurality of flow guide grooves, the flow guide groove is annular distribution, the inner end of flow guide groove all is fixedly connected with the cooling fin, the inner end movable joint of cooling fin has the heat conduction cylinder, through the structural design of cooling fin and heat conduction cylinder, the inside of heat conduction cylinder is full of coolant, and the heat energy conduction of cooperation flow guide groove can form a plurality of cooling heat dissipation structure outside motor rotor body, and the cooling fin and heat conduction cylinder can quickly export heat, control magnetic shoe temperature in the safety range, avoid magnetic property attenuation, good heat dissipation can reduce the temperature rise of stator and rotor, improve the efficiency of this high -power motor rotor operation, and cooling structure helps to support high -speed operation without thermal runaway, improves the operation effect of this high -power motor rotor.

Description

Technical Field

[0001] This utility model relates to the field of motor rotors, specifically high-power motor rotors. Background Technology

[0002] The motor rotor is one of the most important components of a motor. Its main function is to convert electrical energy into mechanical energy through electromagnetic interaction with the stator. Therefore, the use of the motor rotor is very important.

[0003] Chinese patent application number CN201220242259.3 provides a motor rotor. This solution is made by integral injection molding, eliminating the original connecting plate structure, and the production process is simple and convenient.

[0004] When motor rotors are in use, they lack adequate cooling and heat dissipation structures. Furthermore, the magnetism of permanent magnets is highly sensitive to temperature. For example, neodymium iron boron magnets will demagnetize severely after exceeding a certain temperature. Therefore, the heat dissipation and heat conduction functions of high-power motor rotors are crucial during operation. Thus, a high-power motor rotor is proposed to address the above issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the lack of a cooling and heat dissipation structure for motor rotors, and the fact that the magnetism of permanent magnets is very sensitive to temperature (e.g., neodymium iron boron magnets will severely demagnetize after exceeding a certain temperature), this invention proposes a high-power motor rotor.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a high-power motor rotor, including a motor rotor body; a magnetic tile is sleeved on the outer end of the motor rotor body, and multiple guide grooves are opened on the inner end of the magnetic tile. The guide grooves are distributed in a ring, and a heat sink is fixedly connected to the inner end of each guide groove. A heat conduction cylinder is movably connected to the inner end of the heat sink. By installing the heat sink and the heat conduction cylinder, the operating effect of the high-power motor rotor can be improved.

[0007] Preferably, each of the outer ends of the heat-conducting cylinder is fixedly connected to a connector, and a piston is movably connected inside the connector. By installing the connector and the piston, the transfer and replacement of coolant inside the heat-conducting cylinder can be made more convenient.

[0008] Preferably, the heat sink has an assembly groove at its inner end, a locking block is fixedly connected to the inner end of the assembly groove, and an assembly bracket is snapped onto the outer end of the locking block. By installing the locking block, the connection and installation between the heat conduction cylinder and the heat sink can be made more convenient.

[0009] Preferably, the mounting bracket is located at the rear end of the heat-conducting cylinder, and the inner end of the mounting bracket is provided with a slot. By installing the slot, the ease of assembling and connecting the heat-conducting cylinder and the heat sink can be improved.

[0010] Preferably, a drive shaft is fixedly connected to the outer end of the motor rotor body, and a bushing is fitted on the outer end of the drive shaft. By installing the drive shaft and the bushing, the cooperation effect between the connection structures of the motor rotor body can be improved.

[0011] Preferably, a commutator is fixedly connected to the outer end of the drive shaft, and a rotating shaft is fixedly connected to the outer end of the commutator. A second bushing is fitted onto the outer end of the rotating shaft. By installing the commutator and the second bushing, the rotating shaft can operate more stably.

[0012] Preferably, a support frame is fixedly connected to the inner end of the magnetic tile, the support frame is distributed in a ring, and a reinforcing cylinder is fixedly connected to the inner end of the support frame. By installing the magnetic tile and the reinforcing cylinder, the overall stability of the motor rotor body during operation is improved.

[0013] The advantages of this utility model are:

[0014] 1. This utility model, through the structural design of heat sinks and heat conduction cylinders, with the heat conduction cylinder filled with coolant and combined with the flow channel for heat conduction, can form multiple cooling and heat dissipation structures on the outside of the motor rotor body. The heat sinks and heat conduction cylinders can quickly dissipate heat, control the temperature of the magnetic tiles within a safe range, avoid magnetic performance decay, and the good heat dissipation can reduce the temperature rise of the stator and rotor, improve the operating efficiency of the high-power motor rotor, and the cooling structure helps to support high-speed operation without thermal runaway, thus improving the operating effect of the high-power motor rotor;

[0015] 2. This utility model, through the structural design of magnetic tiles and reinforcing cylinders, effectively improves heat dissipation by placing the magnetic tiles externally. Furthermore, the magnetic tiles typically use high-performance permanent magnet materials, and placing them outside the rotor helps to better utilize external space and improve the efficiency of the rotor in generating magnetic force. In addition, the magnetic tiles are equipped with a support frame and a reinforcing cylinder located at the outer end of the motor rotor body. The motor rotor body is subjected to great centrifugal force when rotating at high speed, especially in high-power motors. The design of the reinforcing cylinder and support frame can effectively disperse these stresses, prevent the rotor from deforming or being damaged when rotating at high speed, and improve the overall operational stability of the motor rotor body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the motor rotor body of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional structural diagram of the magnetic tile component of this utility model;

[0020] Figure 4 For the present utility model Figure 3 A magnified three-dimensional structural diagram at point A in the middle;

[0021] Figure 5 This is a three-dimensional structural diagram of the heat sink of this utility model.

[0022] In the diagram: 1. Motor rotor body; 2. Bushing 1; 3. Drive shaft; 4. Commutator; 401. Rotating shaft; 402. Bushing 2; 5. Magnet; 6. Guide channel; 7. Reinforcing cylinder; 8. Support frame; 9. Heat sink; 10. Heat conduction cylinder; 11. Connector; 12. Piston; 13. Assembly slot; 14. Locking block; 15. Assembly frame; 16. Locking groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] This application discloses a high-power motor rotor in its embodiments. (Refer to...) Figures 1-5 A high-power motor rotor includes a motor rotor body 1. A magnetic tile 5 is fitted onto the outer end of the motor rotor body 1. Multiple guide grooves 6 are formed on the inner end of the magnetic tile 5, arranged in a ring. Heat sinks 9 are fixedly connected to the inner ends of each guide groove 6. Heat conduction cylinders 10 are movably connected to the inner ends of the heat sinks 9. By installing the heat sinks 9 and the heat conduction cylinders 10, and with the heat conduction cylinders 10 filled with coolant, multiple cooling and heat dissipation structures can be formed on the outside of the motor rotor body 1 through heat conduction with the guide grooves 6. The heat sinks 9 and the heat conduction cylinders 10 can quickly dissipate heat, controlling the temperature of the magnetic tile within a safe range and preventing magnetic performance decay. Good heat dissipation can reduce the temperature rise of the stator and rotor, improving the operating efficiency of the high-power motor rotor. Furthermore, the cooling structure helps support high-speed operation without thermal runaway, improving the operating performance of the high-power motor rotor.

[0026] Reference Figures 3-5 The outer ends of the heat conduction cylinder 10 are all fixedly connected to the connector 11, and the piston 12 is movably connected inside the connector 11. By installing the connector 11 and the piston 12, with the piston 12 located inside the connector 11, the piston 12 can be moved out, and then an external extraction tool can be used to make the coolant inside the heat conduction cylinder 10 easy to replace, making the transfer and replacement of the coolant inside the heat conduction cylinder 10 more convenient.

[0027] Reference Figure 2 and Figure 5 The heat sink 9 has an assembly slot 13 at its inner end. A locking block 14 is fixedly connected to the inner end of the assembly slot 13. An assembly frame 15 is snapped onto the outer end of the locking block 14. By installing the locking block 14, the locking block 14 can be snapped onto the inner end of the assembly frame 15, making the connection and installation between the heat conduction cylinder 10 and the heat sink 9 more convenient.

[0028] Reference Figure 4 and Figure 5 The assembly frame 15 is located at the rear end of the heat conduction cylinder 10. The inner end of the assembly frame 15 is provided with a slot 16. By installing the slot 16, the slot 16 can be adapted to the slot block 14, thus making it easier to engage the assembly frame 15 and the slot block 14, and improving the ease of assembly and connection between the heat conduction cylinder 10 and the heat sink 9.

[0029] Reference Figure 1 and Figure 2 A drive shaft 3 is fixedly connected to the outer end of the motor rotor body 1. A bushing 2 is sleeved on the outer end of the drive shaft 3. By installing the drive shaft 3 and the bushing 2, the drive shaft 3 can form a connection structure between the rotor core and the commutator 4 of the motor rotor body 1. When the motor rotor body 1 is running, the bushing 2 plays a role in fixing and guiding, maintaining good alignment and stability. The bushing 2 can realize low-friction rotation between the core and the drive shaft 3, avoiding wear caused by direct contact, extending the life of parts, and improving the cooperation effect between the connection structures of the motor rotor body 1.

[0030] Reference Figure 1 and Figure 2 A commutator 4 is fixedly connected to the outer end of the drive shaft 3, and a rotating shaft 401 is fixedly connected to the outer end of the commutator 4. A bushing 402 is sleeved on the outer end of the rotating shaft 401. By installing the commutator 4 and the bushing 402, the commutator 4 is arranged in a region far away from the main magnetic field, which helps to avoid the interference of magnetic flux fluctuations on commutation accuracy or current conduction, improves the stability of motor operation, and the bushing 402 can form a guide structure on the outer end of the rotating shaft 401, making the rotating shaft 401 run more stably.

[0031] Reference Figure 1 and Figure 3The inner end of the magnetic tile 5 is fixedly connected to a support frame 8, which is distributed in a ring. The inner end of the support frame 8 is fixedly connected to a reinforcing cylinder 7. By installing the magnetic tile 5 and the reinforcing cylinder 7, the external placement of the magnetic tile 5 can effectively improve heat dissipation. The magnetic tile 5 usually uses high-performance permanent magnet materials. Placing it outside the rotor helps to better utilize external space and improve the efficiency of the rotor in generating magnetic force. The support frame 8 and the reinforcing cylinder 7 are set inside the magnetic tile 5 at the outer end of the motor rotor body 1. The rotor of the motor rotor body 1 will be subjected to great centrifugal force when rotating at high speed, especially in high-power motors. The design of the reinforcing cylinder 7 and the support frame 8 can effectively disperse these stresses, prevent the rotor from deforming or being damaged when rotating at high speed, and improve the overall operational stability of the motor rotor body 1.

[0032] Working principle: When the motor rotor body 1 is running, the external magnetic tile 5 can effectively improve heat dissipation. The magnetic tile 5 usually uses high-performance permanent magnet material. Placing it on the outside of the rotor helps to better utilize the external space and improve the efficiency of the rotor in generating magnetic force. The magnetic tile 5 has a support frame 8 and a reinforcing cylinder 7 located at the outer end of the motor rotor body 1. The rotor of the motor rotor body 1 is subjected to great centrifugal force when rotating at high speed, especially in high-power motors. The design of the reinforcing cylinder 7 and the support frame 8 can effectively disperse these stresses, making the motor rotor body 1 run stably. The commutator 4 is arranged far away from the main magnetic field area, which helps to avoid the interference of magnetic flux fluctuations on commutation accuracy or current conduction, and improves the stability of motor operation. The bushing 2 402 can form a guide structure at the outer end of the rotating shaft 401. The bushing 2 plays a role in fixing and guiding, maintaining good alignment and stability. The bushing 2 can realize low-friction rotation between the magnetic core and the transmission shaft 3, avoiding wear caused by direct contact and extending the life of components.

[0033] The inner end of the guide groove 6 of the magnetic tile 5 is provided with heat sink 9 and heat conduction cylinder 10. The heat conduction cylinder 10 is filled with coolant. Together with the guide groove 6, heat energy can be conducted to form multiple cooling and heat dissipation structures on the outside of the motor rotor body 1. The heat sink 9 and heat conduction cylinder 10 can quickly dissipate heat, control the temperature of the magnetic tile within a safe range, avoid magnetic performance decay, and good heat dissipation can reduce the temperature rise of the stator and rotor, and improve the operating efficiency of the high-power motor rotor.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-power motor rotor, characterized in that: It includes a motor rotor body (1); the outer end of the motor rotor body (1) is fitted with a magnetic tile (5), and the inner end of the magnetic tile (5) is provided with multiple guide grooves (6). The guide grooves (6) are arranged in a ring. The inner end of each guide groove (6) is fixedly connected with a heat sink (9), and the inner end of the heat sink (9) is movably connected with a heat conduction cylinder (10).

2. The high-power motor rotor according to claim 1, characterized in that: Each of the heat-conducting cylinders (10) is fixedly connected to a connector (11), and a piston (12) is movably connected inside the connector (11).

3. The high-power motor rotor according to claim 1, characterized in that: The heat sink (9) has an assembly slot (13) at its inner end. A locking block (14) is fixedly connected to the inner end of the assembly slot (13), and an assembly bracket (15) is snapped onto the outer end of the locking block (14).

4. The high-power motor rotor according to claim 3, characterized in that: The assembly frame (15) is located at the rear end of the heat-conducting cylinder (10), and the inner end of the assembly frame (15) is provided with a slot (16).

5. The high-power motor rotor according to claim 1, characterized in that: The outer end of the motor rotor body (1) is fixedly connected to a transmission shaft (3), and the outer end of the transmission shaft (3) is fitted with a bushing (2).

6. The high-power motor rotor according to claim 5, characterized in that: A commutator (4) is fixedly connected to the outer end of the drive shaft (3), and a rotating shaft (401) is fixedly connected to the outer end of the commutator (4). A bushing (402) is sleeved on the outer end of the rotating shaft (401).

7. The high-power motor rotor according to claim 1, characterized in that: The inner end of the magnetic tile (5) is fixedly connected to a support frame (8), the support frame (8) is arranged in a ring, and the inner end of the support frame (8) is fixedly connected to a reinforcing cylinder (7).

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