New energy driven motor rotor structure

Abstract

The application discloses a new energy driving motor rotor structure, which comprises a rotating disc, a plurality of magnetic steels, a ring hoop and a rotor vibration adjusting mechanism. A plurality of supporting rods are arranged along the circumferential direction of the rotating disc. A clamping groove is formed between every two supporting rods and the rotating disc. The magnetic steels are clamped in the clamping groove. The ring hoop is arranged at the outer periphery of the magnetic steels. The rotor vibration adjusting mechanism is arranged between the rotating disc and the magnetic steels. In one aspect, the balancing adjusting block and the extrusion baffle are matched to form a radial direction pressing force on the magnetic steels, so that the position of the magnetic steels on the rotating disc is not easy to shake, thereby reducing the vibration phenomenon caused by the insecure installation. In another aspect, the balancing adjusting block and the adjusting block mounting groove are matched to ensure the dynamic balance of the rotor structure, thereby reducing the vibration phenomenon caused by the lack of dynamic balance of the rotor structure. The vibration phenomenon caused by the high-speed operation of the motor is reduced through the two aspects, and the efficiency of the motor is improved.

Description

Technical Field

[0001] This invention relates to motor rotor structure systems, and more particularly to a rotor structure for a new energy drive motor. Background Technology

[0002] Unlike the radial magnetic field of traditional cylindrical motors, disc motors have a planar air gap and an axial air gap magnetic field. They are characterized by short axial dimensions, light weight, simple structure, and flexible control. They also offer advantages such as high power-to-volume ratio, high power factor, and small inverter capacity, making them a widely used type of motor. The rotor of a disc motor is generally a component that rotates around a fixed axis. Ideally, the pressure exerted on the bearings is the same whether the rotor is rotating or not, resulting in a balanced rotating body. However, in reality, due to uneven material properties, defects in the blank, and errors in processing and assembly, the rotor vibrates during rotation, generating noise, accelerating bearing wear, shortening its service life, and reducing user comfort. Furthermore, existing connections between magnets and the disc are mostly detachable, causing the magnets to wobble during high-speed rotation, leading to rotor vibration. Therefore, a new energy drive motor rotor structure is needed that can both adjust dynamic balance and strengthen the stable connection between the disc and the magnets. Summary of the Invention

[0003] The purpose of this invention is to solve the existing problems and provide a rotor structure for a new energy drive motor.

[0004] A rotor structure for a new energy drive motor includes a turntable, multiple magnets, a ring clamp, and a rotor vibration adjustment mechanism. The turntable is arranged with several support rods in an array along the circumferential direction. A slot is formed between every two support rods and the turntable. The magnets are clamped in the slots. The ring clamp is located on the outer periphery of the magnets. The rotor vibration adjustment mechanism is located between the turntable and the magnets.

[0005] The rotor vibration adjustment mechanism includes at least one balance adjustment block, a compression baffle, a baffle fastening assembly, and an adjustment block mounting base. The adjustment block mounting base is located on the outer ring of the turntable, and an adjustment block mounting base is provided between each two adjacent support rods. The balance adjustment block is located within the adjustment block mounting base.

[0006] The balance adjustment block has adjustment surfaces on both sides, which slope inwards from the top to the bottom. A clamping working surface is located at the top of the balance adjustment block, abutting against the bottom of the magnet. Two compression baffles are located on both sides of the balance adjustment block. Each compression baffle has a compression surface with the same inclination angle as the adjustment surface on its side facing the adjustment surface. Through the baffle fastening assembly, the two compression baffles generate a force that compresses the balance adjustment block. The inward slope of the adjustment surfaces from the top to the bottom and the compression surface with the same inclination angle on its side facing the adjustment surface cause the compression baffles to exert a force. A force perpendicular to the adjustment surface is then dispersed into a vertical force and a component force that pushes the balance adjustment block. This component force generates a radial clamping force on the magnet, making the magnet less prone to wobbling on the turntable and more secure. This reduces vibrations caused by insecure installation during rotor rotation. Furthermore, the cooperation between the balance adjustment block and its mounting base allows the balance adjustment block to be detachably located within the mounting base. This allows for the addition or removal of balance adjustment blocks to ensure dynamic balance of the rotor structure, thereby reducing vibrations caused by insecure magnet and turntable installation and a lack of dynamic balance during high-speed rotor rotation.

[0007] Preferably, the baffle fastening assembly includes a fastening screw and a locking nut. The adjusting block mounting base has a first through hole along the axial direction of the turntable. The extrusion baffle has a second through hole corresponding to the first through hole. The fastening screw passes through the first through hole and the second through hole and is connected to the locking nut. Through the cooperation of the fastening screw and the locking nut, an extrusion force is generated on the extrusion baffle.

[0008] Preferably, each adjusting block mounting base located between two support rods includes multiple slots, allowing the number of balancing adjusting blocks to be variable, facilitating the addition or removal of balancing adjusting blocks, so that the balancing adjusting blocks can be used as balancing blocks to achieve dynamic balance of the motor.

[0009] Preferably, the side of the support rod is formed with a limiting groove along the radial direction of the turntable, and the magnet is formed with a limiting protrusion that cooperates with the limiting groove. The limiting groove is an arc-shaped groove. Through the cooperation of the limiting groove and the limiting protrusion, the magnet can be stuck in the groove to prevent circumferential shaking. The arc shape makes it easy for the limiting protrusion to slide into the limiting groove, which is convenient for installation.

[0010] Preferably, the ring is a fiber strip, which is wrapped around the outer periphery of the magnet. The fiber strip can be made of carbon fiber. Using carbon fiber will not significantly increase the weight of the rotor itself. Carbon fiber itself has high mechanical strength, which provides good fixation for the magnet. Carbon fiber is a non-magnetic material, so it will not form a magnetic leakage circuit on the surface of the magnet. Carbon fiber is a flexible material, and the winding method can effectively fill and fix the rotor when the outer edge is irregular.

[0011] The beneficial effects of this invention are as follows:

[0012] 1. This invention utilizes a rotor vibration adjustment mechanism. On one hand, the cooperation of the balance adjustment block and the compression baffle creates a tightening force on the radial direction of the magnet, making it less prone to wobbling on the turntable and thus reducing vibration caused by insecure installation. On the other hand, the cooperation of the balance adjustment block and the adjustment block mounting base ensures the dynamic balance of the rotor structure, thereby reducing vibration caused by the lack of dynamic balance in the rotor structure. By addressing these two aspects, the vibration caused by the motor during high-speed operation is reduced, thereby improving the motor's efficiency.

[0013] 2. The present invention uses the combination of the limiting groove and the limiting protrusion to allow the magnet to be locked in the slot, preventing circumferential wobbling. The arc shape facilitates the sliding of the limiting protrusion into the limiting groove, making installation easier. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall invention;

[0015] Figure 2 This is a schematic diagram showing the disassembly of the turntable and the extrusion baffle of the present invention;

[0016] Figure 3 For the present invention Figure 2 Enlarged view of point A;

[0017] Figure 4 This is a cross-sectional schematic diagram of the balance adjustment block being pushed out of the adjustment block mounting seat by the squeeze baffle of the present invention;

[0018] Figure 5 This is a cross-sectional view and a schematic diagram of the direction of force of the balance adjustment block of the present invention, showing that the balance adjustment block is not pushed out of the adjustment block mounting seat by the squeeze baffle.

[0019] Figure 6 This is a schematic diagram illustrating the fit between the magnet and the support rod of the present invention; Detailed Implementation

[0020] The following specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present invention.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1:

[0023] like Figure 1-6 As shown, a rotor structure for a new energy drive motor includes a turntable 31, multiple magnets 32, a ring clamp 33, and a rotor vibration adjustment mechanism 34. The turntable 31 has several support rods 35 arranged in a circular array along its circumference. A slot 36 is formed between every two support rods 35 and the turntable 31, and the magnets 32 are engaged within the slots 36. The ring clamp 33 is located on the outer periphery of the magnets 32. The rotor vibration adjustment mechanism 34 is located between the turntable 31 and the magnets 32, and includes at least one balancing... The system comprises an adjusting block 341, a pressing baffle 342, a baffle fastening assembly 343, and an adjusting block mounting base 344. Each adjusting block mounting base 344, located between two support rods 35, includes multiple slots 3443. The adjusting block mounting base 344 is disposed on the outer ring of the turntable 31, with each adjusting block mounting base 344 positioned between two adjacent support rods 35. The balance adjusting block 341 is disposed within the adjusting block mounting base 344. A gap 345 is provided between the pressing baffle 342 and the adjusting block mounting base 344. Both the upper and lower sides of the 44 are provided with baffle limiting grooves 346. The extrusion baffle 342 is disposed in the baffle limiting groove 346. The balance adjusting block 341 is provided with adjusting surfaces 3411 on both sides. The adjusting surfaces 3411 are inclined inward from the top to the bottom of the balance adjusting block 341. The top of the balance adjusting block 341 is provided with a pressing working surface 3412, which abuts against the bottom of the magnet 32. The two extrusion baffles 342 are disposed on both sides of the balance adjusting block 341, and the extrusion baffles 342 face towards A pressing surface 3421 with the same inclination angle as the adjusting surface 3411 is provided on one side of the adjusting surface 3411. The baffle fastening assembly 343 includes a fastening screw 3431 and a locking nut 3432. The adjusting block mounting base 344 is provided with a first through hole 3441 along the axial direction of the turntable. The pressing baffle 342 is provided with a second through hole 3442 corresponding to the first through hole 3441. The fastening screw 3431 passes through the first through hole 3441 and the second through hole 3442 and is connected to the locking nut 3432.

[0024] like Figure 2 and6 As shown, the side of the support rod 35 is formed with a limiting groove 351 along the radial direction of the turntable 31, and the magnet 32 ​​is formed with a limiting protrusion 321 that cooperates with the limiting groove 351. The limiting groove 351 is an arc-shaped groove, and the ring 33 is a fiber strip. The fiber strip is wrapped around the outer periphery of the magnet 32.

[0025] The working principle of the structure of this invention is as follows: Figure 1-6 As shown, the magnet 32 ​​is inserted into the slot 36 through the cooperation of the limiting groove 351 and the limiting protrusion 321 to prevent the magnet 32 ​​from moving circumferentially during rotation. Then, the fiber strip is wrapped around the outer periphery of the magnet 32 ​​to fix the outer periphery of the magnet 32. However, at this time, the magnet 32 ​​is only subjected to one force in the radial direction due to the only fiber strip winding, making the magnet 32 ​​very easy to shake during high-speed operation. Therefore, a balance adjustment block 341 is first inserted into the slot 3443 at the center position between each pair of support rods 35 to ensure the balance of the rotor structure. Then, the extrusion baffle 342 is placed into the baffle limiting groove 346. The fastening screw 3431 is passed through the first through hole 3441 and the second through hole 3442 and the locking nut 3432 to cooperate, so that the extrusion baffle 342 generates a force to push the balance adjustment block 341 out of the adjustment block mounting seat 344, thereby slightly adjusting the balance adjustment block 341. Out of the adjusting block mounting seat 344, the balance adjusting block 341 forms a radial clamping force on the magnet 32, making the position of the magnet 32 ​​on the turntable 31 less prone to shaking, thereby reducing vibration caused by insecure installation. Then, the rotor structure is inspected by a dynamic balance detection device to detect areas of uneven weight distribution. The fastening screw 3431 and locking nut 3432 are then removed, and the compression baffle 342 is taken off. As needed, a new number of balance adjusting blocks 341 are inserted into other adjusting block mounting seats 3446 as balance blocks. Then, the compression baffle 34 is installed by fastening the screw 3431 and locking nut 3432 to complete the fixation of the balance adjusting blocks 341. By using the balance adjusting blocks 341 as balance blocks, the dynamic balance of the motor is achieved, solving the vibration caused by insecure installation of the magnet and turntable and lack of dynamic balance of the rotor structure when the motor is running at high speed, thereby improving the efficiency of the motor.

Claims

1. A rotor structure for a new energy drive motor, characterized in that: The device includes a turntable (31), multiple magnets (32), a ring clamp (33), and a rotor vibration adjustment mechanism (34). The turntable (31) is arranged with several support rods (35) in a circumferential direction. A slot (36) is formed between every two support rods (35) and the turntable (31). The magnets (32) are locked in the slots (36). The ring clamp (33) is located on the outer periphery of the magnets (32). The rotor vibration adjustment mechanism (34) is located between the turntable (31) and the magnets (32). The rotor vibration adjustment mechanism (34) includes at least one balance adjustment block (341), a compression baffle (342), a baffle fastening assembly (343), and an adjustment block mounting seat (344). The adjustment block mounting seat (344) is located on the outer ring of the turntable (31), and the adjustment block mounting seat (344) is provided between two adjacent support rods (35). The balance adjustment block (341) is located inside the adjustment block mounting seat (344). A gap (345) is provided between the extrusion baffle (342) and the adjusting block mounting base (344); The upper and lower sides of the adjusting block mounting base (344) are provided with baffle limiting grooves (346), and the extrusion baffle (342) is provided in the baffle limiting grooves (346); The balance adjustment block (341) has adjustment surfaces (3411) on both sides. The adjustment surfaces (3411) are inclined inward from the top to the bottom of the balance adjustment block (341). The top of the balance adjustment block (341) is provided with a pressing working surface (3412), which abuts against the bottom of the magnet (32). Two extrusion baffles (342) are provided on both sides of the balance adjustment block (341). The side of the extrusion baffle (342) facing the adjustment surface (3411) is provided with an extrusion surface (3421) with the same inclination angle as the adjustment surface (3411).

2. The rotor structure of a new energy drive motor according to claim 1, characterized in that, The baffle fastening assembly (343) includes a fastening screw (3431) and a locking nut (3432). The adjusting block mounting base (344) is provided with a first through hole (3441) along the axial direction of the turntable (31). The extrusion baffle (342) is provided with a second through hole (3442) corresponding to the first through hole (3441). The fastening screw (3431) passes through the first through hole (3441) and the second through hole (3442) and is connected to the locking nut (3432).

3. The rotor structure of a new energy drive motor according to claim 1, characterized in that, Each adjustment block mounting base (344) located between two support rods (35) includes multiple slots (3443).

4. The rotor structure of a new energy drive motor according to claim 1, characterized in that, The side of the support rod (35) is formed with a limiting groove (351) along the radial direction of the turntable (31), and the magnet (32) is formed with a limiting protrusion (321) that cooperates with the limiting groove (351).

5. The rotor structure of a new energy drive motor according to claim 4, characterized in that, The limiting groove (351) is an arc-shaped groove.

6. The rotor structure of a new energy drive motor according to claim 1, characterized in that, The ring (33) is a fiber strip, which is wrapped around the outer periphery of the magnet (32).

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