Self-lubricating dustproof permanent magnet synchronous motor
By installing a dustproof shell and buffer components on the outside of the permanent magnet synchronous motor, the problems of dust ingress and noise are solved, achieving dustproof and vibration reduction effects on the motor and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YUCHUAN POWER TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-14
Smart Images
Figure CN224503043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of permanent magnet synchronous motor technology, and in particular to a self-lubricating dustproof permanent magnet synchronous motor. Background Technology
[0002] There are generally two types of connection structures for the magnets on the rotor of a permanent magnet synchronous motor: external and internal. External magnets are usually arc-shaped and are pasted onto the outer circumference of the rotor core and bound to the core with binding material. This type is easy to manufacture and has a simple structure, but it increases the centrifugal force on the outside of the rotor, resulting in a corresponding increase in rotor volume. The pasted structure also leads to poor rotor strength, and the magnetic utilization rate of this structure is low. In contrast, internal magnets are strip-shaped, and the core has slots corresponding to the strip magnets. The strip magnets are inserted into the slots, and this structure solves the problem of poor strength.
[0003] The prior art patent CN217508461U discloses a self-lubricating dustproof permanent magnet synchronous motor, including a permanent magnet synchronous motor body, a motor shaft inside the permanent magnet synchronous motor body, a self-lubricating device on the top of the permanent magnet synchronous motor body, a stator inside the permanent magnet synchronous motor body, a rotor on the surface of the stator, and a recovery device inside the permanent magnet synchronous motor body. The self-lubricating device includes an oil tank, an oil pump, an oil pipe, a nozzle, a connecting frame, a hydraulic telescopic rod, and a clamping plate. This self-lubricating dustproof permanent magnet synchronous motor, in conjunction with the hydraulic telescopic rod, can drive the clamping plate to move left and right, thereby driving the oil pipe to move left and right in the horizontal direction, thus adjusting the angle of the nozzle and increasing the spraying range. This allows the nozzle to spray a larger area during automatic lubrication of the permanent magnet synchronous motor, providing comprehensive lubrication to the motor shaft, resulting in good performance during use.
[0004] However, existing self-lubricating dustproof permanent magnet synchronous motors are exposed to the outside, and when not in use, dust and impurities can enter the interior through the gaps in the permanent magnet motor's casing, which can easily affect the use of internal components and reduce their service life. At the same time, permanent magnet synchronous motors will generate vibrations during use, which will produce huge noise and affect the operating environment. Utility Model Content
[0005] To overcome the problems of existing self-lubricating dustproof permanent magnet synchronous motors lacking a dustproof structure, allowing dust to enter and damage internal components, shortening their service life, and generating significant noise during operation.
[0006] The technical solution of this utility model is as follows: a self-lubricating dustproof permanent magnet synchronous motor, including a permanent magnet synchronous motor body, an oil tank disposed on the top of the permanent magnet synchronous motor body, a dustproof shell sleeved on the outside of the permanent magnet synchronous motor body, insertion slots are provided on both the left and right sides inside the dustproof shell, and insertion parts are fixedly connected to both the left and right sides inside the two insertion slots, a receiving plate is provided inside the dustproof shell, sliding grooves are provided on both the left and right sides inside the dustproof shell, a first buffer component is provided inside the two sliding grooves, a second buffer component is provided on both the left and right sides inside the dustproof shell, and connecting plates are fixedly connected to the front and rear ends of the receiving plate and the first and second buffer components. The first and second buffer components are used to buffer the permanent magnet synchronous motor body.
[0007] Preferably, the dustproof housing has an inner cavity inside, into which the permanent magnet synchronous motor body is inserted for installation. A heat dissipation mechanism is provided at the rear end of the dustproof housing for dissipating heat from the permanent magnet synchronous motor body.
[0008] Preferably, dust filters are provided on both the left and right sides of the dustproof housing. The dust filters are used to prevent dust from entering the permanent magnet synchronous motor body, and at the same time, they can be used for air circulation, heat dissipation and dust prevention of the permanent magnet synchronous motor body.
[0009] Preferably, plug-in blocks are fixedly connected to the left and right sides of the rear end of the permanent magnet synchronous motor body. The plug-in blocks are inserted into the plug-in slots. Rivet holes are opened on the left and right sides inside the plug-in blocks. The plug-in components include tenons inserted into the rivet holes. The permanent magnet synchronous motor body and the dustproof shell are installed through mortise and tenon joints.
[0010] Preferably, the first buffer assembly includes a first guide rod, a first guide block is slidably sleeved on the outside of the first guide rod, and a first spring is fixedly connected above the first guide block and sleeved on the outside of the first guide rod, for buffering the vibration of the permanent magnet synchronous motor body.
[0011] Preferably, the second buffer assembly includes a second guide rod, a second guide block is slidably sleeved on the outside of the second guide rod, and connecting plates are fixedly connected to both ends of the second guide block, the first guide block, and the receiving plate.
[0012] Preferably, a third guide block is fixedly connected to both the left and right sides of the receiving plate and is slidably sleeved outside the second guide rod. A second spring is fixedly connected below the third guide block and sleeved outside the second guide rod, which is used to buffer the vibration of the permanent magnet synchronous motor body.
[0013] The beneficial effects of this utility model are:
[0014] 1. This self-lubricating dustproof permanent magnet synchronous motor has a dustproof shell installed on the outside of the permanent magnet synchronous motor. The dustproof filters on the left and right sides of the shell not only dissipate heat but also improve the dust protection of the motor and extend its service life.
[0015] 2. This self-lubricating dustproof permanent magnet synchronous motor uses a buffer structure inside the dustproof housing to buffer the vibration generated during motor operation. The reduction of vibration also reduces noise. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the self-lubricating dustproof permanent magnet synchronous motor of this utility model.
[0017] Figure 2 The diagram shown is a cross-sectional view of the internal structure of the dustproof outer shell of this utility model.
[0018] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point A;
[0019] Figure 4 The image shown is a front view of the internal structure of the dustproof outer shell of this utility model.
[0020] Figure 5 This utility model is shown. Figure 4 A magnified schematic diagram of the three-dimensional structure at point B.
[0021] Explanation of reference numerals in the attached drawings: 1. Dustproof outer shell; 2. Inner cavity; 3. Permanent magnet synchronous motor body; 4. Oil tank; 5. Dustproof filter; 6. Heat dissipation mechanism; 7. Support plate; 8. Slide groove; 9. First spring; 10. First guide rod; 11. First guide block; 12. Connecting plate; 13. Second guide rod; 14. Second guide block; 15. Second spring; 16. Third guide block; 17. Insertion groove; 18. Tenon. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5This utility model provides an embodiment of a self-lubricating dustproof permanent magnet synchronous motor, including a permanent magnet synchronous motor body 3, an oil tank 4 disposed on the top of the permanent magnet synchronous motor body 3, a dustproof shell 1 sleeved on the outside of the permanent magnet synchronous motor body 3, insertion slots 17 are provided on both the left and right sides of the inside of the dustproof shell 1, and insertion parts are fixedly connected to both the left and right sides of the two insertion slots 17, a receiving plate 7 is provided inside the dustproof shell 1, sliding grooves 8 are provided on both the left and right sides of the inside of the dustproof shell 1, a first buffer component is provided inside both the two sliding grooves 8, and a second buffer component is provided on both the left and right sides of the inside of the dustproof shell 1, and connecting plates 12 are fixedly connected to the front and rear ends of the receiving plate 7 and the first and second buffer components. The first and second buffer components are used to buffer the permanent magnet synchronous motor body 3. The structure of the permanent magnet synchronous motor body 3, the oil tank 4 and the heat dissipation mechanism 6 is a prior art solution, and the applicant will not provide a detailed description of the internal structure and components or their connection relationship of the permanent magnet synchronous motor body 3, the oil tank 4 and the heat dissipation mechanism 6.
[0024] Please see Figures 1-2 and Figure 5 In this embodiment, the dustproof housing 1 has an inner cavity 2 inside, into which the permanent magnet synchronous motor body 3 is inserted for installation. A heat dissipation mechanism 6 is provided at the rear end of the dustproof housing 1 for cooling the permanent magnet synchronous motor body 3. Dustproof filters 5 are provided on both the left and right sides of the dustproof housing 1 for dust protection of the permanent magnet synchronous motor body 3, while also allowing air circulation for both heat dissipation and dust protection. Insertion blocks are fixedly connected to the left and right sides of the rear end of the permanent magnet synchronous motor body 3, and these blocks are inserted into insertion slots 17. Rivet holes are provided on both the left and right sides inside the insertion blocks. The connector includes a tenon 18 that inserts into the rivet eye. It is used for the installation of the permanent magnet synchronous motor body 3 and the dustproof housing 1 through a mortise and tenon joint. The connector is inserted into the connector slot 17, and the tenon 18 is inserted into the rivet eye. The dustproof housing 1 and the permanent magnet synchronous motor body 3 are fixed by the mortise and tenon joint. The internal heat dissipation mechanism 6 can dissipate heat. At the same time, the dustproof filters 5 on the left and right sides can filter impurities and dust while also allowing air circulation, which helps to dissipate heat from the permanent magnet synchronous motor body 3. The dustproof housing 1 not only provides dust protection but also protects the permanent magnet synchronous motor body 3, greatly extending the service life of the permanent magnet synchronous motor body 3.
[0025] Please see Figures 2-4In this embodiment, the first buffer assembly includes a first guide rod 10, with a first guide block 11 slidably sleeved on the outside of the first guide rod 10. A first spring 9, sleeved on the outside of the first guide rod 10, is fixedly connected above the first guide block 11 for buffering the vibration of the permanent magnet synchronous motor body 3. The second buffer assembly includes a second guide rod 13, with a second guide block 14 slidably sleeved on the outside of the second guide rod 13. Connecting plates 12 are fixedly connected to both ends of the front end of the second guide block 14, the first guide block 11, and the receiving plate 7. Third guide blocks 16, slidably sleeved on the outside of the second guide rod 13, are fixedly connected to both sides of the receiving plate 7. A first spring 9, sleeved on the outside of the first guide rod 10, is fixedly connected below the third guide block 16. The second spring 15 outside the second guide rod 13 is used to buffer the vibration of the permanent magnet synchronous motor body 3. After the permanent magnet synchronous motor body 3 is inserted into the dustproof shell 1, it is located on the receiving plate 7. The third guide blocks 16 on the left and right sides slide outside the second guide rod 13, and the second spring 15 below it is compressed. At the same time, the second guide block 14 connected by the connecting plate 12 also slides outside the second guide rod 13. Meanwhile, the first guide block 11 slides up and down outside the first guide rod 10. Through the compression of the first spring 9, the overall buffering effect is improved, which reduces the vibration of the permanent magnet synchronous motor body 3 and also reduces noise.
[0026] During operation, the mortise and tenon joint secures the dustproof housing 1 to the permanent magnet synchronous motor body 3. Simultaneously, the dust filters 5 on both sides filter impurities and dust while allowing air circulation for heat dissipation of the internal permanent magnet synchronous motor body 3. The dustproof housing 1 serves as a dustproof barrier and protects the permanent magnet synchronous motor body 3. After the permanent magnet synchronous motor body 3 is inserted into the dustproof housing 1, it rests on the receiving plate 7. The third guide blocks 16 on both sides slide outside the second guide rod 13, compressing the second spring 15 below. Simultaneously, the first guide block 11 connected to the connecting plate 12 slides up and down outside the first guide rod 10. The compression of the first spring 9 enhances the overall buffering effect, reducing vibration of the permanent magnet synchronous motor body 3 and consequently reducing noise.
[0027] Through the above steps, by installing a dustproof housing 1 on the outside of the permanent magnet synchronous motor and utilizing the dustproof filters 5 on the left and right sides of the housing, the dust protection of the motor is improved while dissipating heat, thus extending its service life. This solves the problem that existing self-lubricating dustproof permanent magnet synchronous motors do not have a dustproof structure, which allows dust to enter the interior and cause damage to internal components, shortening their service life. At the same time, permanent magnet synchronous motors generate a lot of noise when running.
Claims
1. A self-lubricating dustproof permanent magnet synchronous motor, comprising a permanent magnet synchronous motor body (3), characterized in that: An oil tank (4) is provided on the top of the permanent magnet synchronous motor body (3). A dustproof shell (1) is fitted on the outside of the permanent magnet synchronous motor body (3). Insertion slots (17) are provided on both the left and right sides inside the dustproof shell (1). Insertion parts are fixedly connected to both the left and right sides inside the two insertion slots (17). A support plate (7) is provided inside the dustproof shell (1). Slide grooves (8) are provided on both the left and right sides inside the dustproof shell (1). A first buffer component is provided inside both slide grooves (8). A second buffer component is provided on both the left and right sides inside the dustproof shell (1). A connecting plate (12) is fixedly connected to both the front and rear ends between the support plate (7) and the first and second buffer components. The first and second buffer components are used to buffer the permanent magnet synchronous motor body (3).
2. The self-lubricating dustproof permanent magnet synchronous motor according to claim 1, characterized in that: The dustproof housing (1) has an inner cavity (2) inside, and the permanent magnet synchronous motor body (3) is inserted into the inner cavity (2) for installation of the permanent magnet synchronous motor body (3). The dustproof housing (1) has a heat dissipation mechanism (6) at the rear end, which is used to dissipate heat from the permanent magnet synchronous motor body (3).
3. The self-lubricating dustproof permanent magnet synchronous motor according to claim 1, characterized in that: Dustproof filters (5) are provided on both the left and right sides of the dustproof housing (1). The dustproof filters (5) are used to prevent dust from the permanent magnet synchronous motor body (3). At the same time, the dustproof filters (5) can be used for air circulation, and for heat dissipation and dust prevention of the permanent magnet synchronous motor body (3).
4. The self-lubricating dustproof permanent magnet synchronous motor according to claim 1, characterized in that: The left and right sides of the rear end of the permanent magnet synchronous motor body (3) are fixedly connected with plug blocks. The plug blocks are inserted into the plug slots (17). The left and right sides of the plug blocks are provided with rivet holes. The plug-in part includes a tenon (18) inserted into the rivet hole. It is used for the installation of the permanent magnet synchronous motor body (3) and the dustproof shell (1) through the tenon and mortise plug-in form.
5. The self-lubricating dustproof permanent magnet synchronous motor according to claim 1, characterized in that: The first buffer assembly includes a first guide rod (10), a first guide block (11) is slidably sleeved on the outside of the first guide rod (10), and a first spring (9) is fixedly connected above the first guide block (11) and sleeved on the outside of the first guide rod (10) for buffering the vibration of the permanent magnet synchronous motor body (3).
6. The self-lubricating dustproof permanent magnet synchronous motor according to claim 5, characterized in that: The second buffer assembly includes a second guide rod (13), a second guide block (14) is slidably sleeved on the outside of the second guide rod (13), and connecting plates (12) are fixedly connected at both ends of the second guide block (14) to the first guide block (11) and the receiving plate (7).
7. The self-lubricating dustproof permanent magnet synchronous motor according to claim 6, characterized in that: The left and right sides of the receiving plate (7) are fixedly connected with a third guide block (16) that is slidably sleeved outside the second guide rod (13). Below the third guide block (16) is a second spring (15) that is sleeved outside the second guide rod (13) for buffering the vibration of the permanent magnet synchronous motor body (3).