Thrust disc and fan integrated magnetic suspension bearing motor
By designing a blade structure that integrates the thrust disk and fan in the magnetic levitation bearing motor, multiple cooling channels are formed, solving the problem of poor heat dissipation and achieving more efficient heat dissipation and cost reduction.
Patent Information
- Application Number
- CN202520628736.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-03
AI Technical Summary
In existing magnetic levitation bearing motors, the thrust plate and cooling fan are separated, resulting in poor heat dissipation and increased axial length of the motor. It is necessary to install the thrust plate and cooling fan separately, which increases costs.
Design a magnetic levitation bearing motor that integrates the thrust plate and fan. By combining the thrust plate and fan into one unit and setting multiple blade circumferential structures, multiple cooling channels are formed to achieve rapid airflow and enhance heat dissipation.
The heat dissipation performance of the magnetic levitation motor has been improved, and the axial length and cost of the motor have been reduced.
Smart Images
Figure CN223843635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic levitation motor technology, and in particular to a magnetic levitation bearing motor that integrates a thrust plate and a fan. Background Technology
[0002] In existing magnetic levitation bearing motors, a thrust plate and a cooling fan are separately installed. The thrust plate is a flat disc structure that protrudes from the rotor surface, obstructing the cooling airflow. Furthermore, both the thrust plate and the cooling fan are designed to increase the axial length of the motor. Currently, this type of motor suffers from poor heat dissipation and requires separate components for the thrust plate and cooling fan. Utility Model Content
[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide a magnetic levitation bearing motor that integrates the thrust plate and the fan. By integrating the thrust plate and the fan into a single unit, the heat dissipation of this motor structure is enhanced, and the cost can be reduced.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A magnetic levitation bearing motor integrating a thrust plate and a fan is disclosed. The motor includes a housing, a stator disposed within the housing, a rotor disposed in the middle of the stator, and radial magnetic bearings disposed at both ends of the stator and located inside the housing. The motor also includes an integral component for mounting the thrust plate and the fan, the integral component being composed of multiple circumferentially arranged blades, the inner diameter of the integral component being radially disposed on the rotor. Thrust bearings are disposed at both ends of the integral component.
[0006] Preferably, the motor housing is provided with a first air inlet, a second air inlet, a third air inlet, and an air outlet. The first air inlet and the air outlet cooperate to form a first cooling channel, the second air inlet and the air outlet cooperate to form a second cooling channel, and the third air inlet and the air outlet cooperate to form a third cooling channel.
[0007] Preferably, the first cooling channel further includes a left-end radial clearance between the housing and the left-end radial magnetic bearing and a left-end axial clearance between the left-end radial magnetic bearing and the rotor; the first air inlet is connected to the left-end radial clearance and the left-end axial clearance in sequence, and is ventilated and cooled through the blade gap and air outlet of the integral component.
[0008] Preferably, the second cooling channel also includes a central axial gap located between the rotor and the stator; the second air inlet is connected to the central axial gap and is ventilated and cooled through the blade gap and air outlet of the integral component.
[0009] Preferably, the third cooling channel also includes a right-end radial clearance between the housing and the right-end radial magnetic bearing and a right-end axial clearance between the right-end radial magnetic bearing and the rotor; the third air inlet is connected in sequence to the right-end radial clearance, the right-end axial clearance and the middle axial clearance, and is ventilated and cooled through the blade gap and air outlet of the integral component.
[0010] In summary, the advantages of this utility model are as follows:
[0011] By integrating the thrust plate and fan into a single unit within the magnetic levitation motor, the motor's heat dissipation is enhanced, and costs are reduced. This single unit is composed of multiple curved blade circumferences, allowing airflow to escape more quickly through the gaps between the blades during heat dissipation. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the cross-sectional structure of the magnetic levitation motor;
[0013] Figure 2 A schematic diagram of the structure of a single piece;
[0014] Reference numerals: 1. Housing; 2. Rotor; 3. Stator; 4. Radial magnetic bearing; 5. Integrated component; 6. Blade; 7. Thrust bearing; 11. First air inlet; 12. Second air inlet; 13. Third air inlet; 14. Air outlet; 15. First cooling channel; 16. Second cooling channel; 17. Third cooling channel; 18. Radial clearance at the left end; 19. Axial clearance of the left magnetic bearing; 20. Axial clearance at the middle; 21. Radial clearance at the right end; 22. Axial clearance of the right magnetic bearing. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0016] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0017] It should also be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0019] like Figures 1 to 2 As shown, a magnetic levitation bearing motor integrating a thrust plate and a fan is disclosed. The motor includes a housing 1, a stator 3 disposed within the housing 1, a rotor 2 disposed in the middle of the stator 3, and radial magnetic bearings 4 disposed at both ends of the stator 3 and located inside the housing 1. Since the above structure is a conventional structure for motors, it will not be described in detail further.
[0020] like Figures 1 to 2 As shown, the motor also includes an integral component 5 that houses the thrust plate and the fan. The integral component 5 is composed of multiple curved blades 6 arranged circumferentially. The inner diameter of the integral component 5 is radially arranged on the rotor 2 and located between the stator 3 and the left-end radial magnetic bearing 4.
[0021] Among them, thrust bearings 7 are provided at both ends of the integral component 5.
[0022] like Figures 1 to 2 As shown, the aforementioned integral component 5 can be integrally mounted on the rotor 2 or sleeved on the rotor 2.
[0023] like Figures 1 to 2 As shown, to ensure heat dissipation of the magnetic levitation motor, a first air inlet 11, a second air inlet 12, a third air inlet 13, and an air outlet 14 are provided on the motor housing 1. The first air inlet 11 and the air outlet 14 cooperate to form a first cooling channel 15, the second air inlet 12 and the air outlet 14 cooperate to form a second cooling channel 16, and the third air inlet 13 and the air outlet 14 cooperate to form a third cooling channel 17. The overall airflow path is unobstructed, and the axial dimension can be reduced.
[0024] The first cooling channel 15 also includes a left-end radial gap 18 located between the housing 1 and the left-end radial magnetic bearing 4 and a left-end magnetic bearing axial gap 19 located between the left-end radial magnetic bearing 4 and the rotor 2; the first air inlet 11 is connected to the left-end radial gap 18 and the left-end magnetic bearing axial gap 19 in sequence, and is ventilated and cooled through the gap of the blade 6 of the integral piece 5 and the air outlet 14.
[0025] The second cooling channel 16 also includes a central axial gap 20 located between the rotor 2 and the stator 3; the second air inlet 12 is connected to the central axial gap 20 and is ventilated and cooled through the gap of the blade 6 of the integral piece 5 and the air outlet 14.
[0026] The third cooling channel 17 also includes a right-end radial gap 21 located between the housing 1 and the right-end radial magnetic bearing 4 and a right-end magnetic bearing axial gap 22 located between the right-end radial magnetic bearing 4 and the rotor 2; the third air inlet 13 is connected to the right-end radial gap 21, the right-end magnetic bearing axial gap 22 and the middle axial gap 20 in sequence, and is ventilated and cooled through the gap of the blade 6 of the integral piece 5 and the air outlet 14.
[0027] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.
Claims
1. A magnetic levitation bearing motor integrating a thrust plate and a fan, the motor comprising a housing (1), a stator (3) disposed within the housing (1), a rotor (2) disposed in the middle of the stator (3), and radial magnetic bearings (4) disposed at both ends of the stator (3) and located inside the housing (1); characterized in that, The motor also includes an integral part (5) that provides a thrust plate and a fan. The integral part (5) is composed of multiple blades (6) arranged circumferentially. The inner diameter of the integral part (5) is radially arranged on the rotor (2). Thrust bearings (7) are provided at both ends of the integral part (5).
2. The magnetic levitation bearing motor integrating a thrust disk and a fan according to claim 1, characterized in that, The motor housing (1) is provided with a first air inlet (11), a second air inlet (12), a third air inlet (13), and an air outlet (14). The first air inlet (11) and the air outlet (14) cooperate to form a first cooling channel (15), the second air inlet (12) and the air outlet (14) cooperate to form a second cooling channel (16), and the third air inlet (13) and the air outlet (14) cooperate to form a third cooling channel (17).
3. A magnetic levitation bearing motor integrating a thrust disk and a fan according to claim 2, characterized in that, The first cooling channel (15) also includes a left-end radial gap (18) between the housing (1) and the left-end radial magnetic bearing (4) and a left-end magnetic bearing axial gap (19) between the left-end radial magnetic bearing (4) and the rotor (2); the first air inlet (11) is connected to the left-end radial gap (18) and the left-end magnetic bearing axial gap (19) in sequence, and is ventilated and cooled through the gap of the blade (6) of the integral part (5) and the air outlet (14).
4. A magnetic levitation bearing motor integrating a thrust disk and a fan according to claim 2, characterized in that, The second cooling channel (16) also includes a central axial gap (20) between the rotor (2) and the stator (3); the second air inlet (12) is connected to the central axial gap (20) and is ventilated and cooled through the gap of the blade (6) of the integral piece (5) and the air outlet (14).
5. A magnetic levitation bearing motor integrating a thrust disk and a fan according to claim 2, characterized in that, The third cooling channel (17) also includes a right-end radial gap (21) between the housing (1) and the right-end radial magnetic bearing (4) and a right-end magnetic bearing axial gap (22) between the right-end radial magnetic bearing (4) and the rotor (2); the third air inlet (13) is connected to the right-end radial gap (21), the right-end magnetic bearing axial gap (22) and the middle axial gap (20) in sequence, and is ventilated and cooled through the gap of the blade (6) of the integral part (5) and the air outlet (14).