Low-noise rotor of small and micro energy-saving refrigeration motor

Abstract

The utility model discloses a low-noise rotor of a small and micro energy-saving refrigeration motor, and relates to the technical field of motor rotors. Comprising a rotor core and a shaft connecting structure arranged in the rotor core, the shaft connecting structure comprises a main shaft piece, an auxiliary shaft piece, a plurality of connecting rods, a plurality of bolts, a limiting ring and a clamping and embedding ring, the sides, close to each other, of the main shaft piece and the auxiliary shaft piece are embedded in the rotor core, one ends of the connecting rods are fixedly arranged on the main shaft piece, and the other ends of the connecting rods are fixedly arranged on the clamping and embedding ring. And the other ends of the plurality of connecting rods are fixedly embedded in the auxiliary shaft piece through a plurality of bolts respectively. Through the main shaft piece, the auxiliary shaft piece, the connecting rod, the bolt and the limiting ring, the overall weight of the rotor can be effectively reduced, the operation efficiency of equipment can be improved, the lighter rotor can reduce the burden of a bearing and a driving system, the service life of the equipment is prolonged, meanwhile, the proper centrifugal force can ensure that the motor rotor keeps stable in the operation process, and the service life of the equipment is prolonged. And vibration and noise are reduced, so that the overall performance and reliability of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor technology, specifically a low-noise rotor for a small energy-saving refrigeration motor. Background Technology

[0002] Currently, the motor rotor, as the rotating part of the motor, is usually composed of components such as iron core, windings, shaft and fan. It plays a vital role in the operation of the motor, converting electrical energy into mechanical energy through the principle of electromagnetic induction to drive the equipment.

[0003] Currently, motor rotors are solid, which increases the overall weight of the rotor. A heavier rotor increases the burden on the bearings and drive system, reducing the lifespan of the equipment. Moreover, the rotor generates centrifugal force during rotation. A large centrifugal force will aggravate the vibration of the equipment and easily generate noise, while a small centrifugal force will increase the consumption of electrical energy. Utility Model Content

[0004] This utility model provides a low-noise rotor for a small energy-saving refrigeration motor. By using a main shaft, a secondary shaft, a connecting rod, bolts, and a limiting ring, the overall weight of the rotor can be effectively reduced, which is beneficial to improving the operating efficiency of the equipment. The lighter rotor can reduce the burden on the bearings and drive system, extending the service life of the equipment. At the same time, appropriate centrifugal force can ensure that the motor rotor remains stable during operation, reducing vibration and noise, thereby improving the overall performance and reliability of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-noise rotor for a small, energy-saving refrigeration motor, comprising:

[0006] Rotor core;

[0007] The shaft connection structure is located inside the rotor core;

[0008] The shaft connection structure includes a main shaft, a secondary shaft, multiple connecting rods, multiple bolts, a limiting ring, and a retaining ring. The main shaft and the secondary shaft are both embedded in the rotor core on their adjacent sides. One end of each of the multiple connecting rods is fixed to the main shaft, and the other end of each of the multiple connecting rods is fixedly embedded in the secondary shaft by multiple bolts. The outer wall of the limiting ring is embedded in the secondary shaft by the retaining ring, and the inner wall of the limiting ring is slidably sleeved on the multiple bolts.

[0009] As a low-noise rotor for a small energy-saving refrigeration motor according to this utility model, the outer wall of the main shaft is fixedly sleeved with a wire outlet, and the outer wall of the auxiliary shaft is fixedly sleeved with a connector.

[0010] As a low-noise rotor for a small energy-saving refrigeration motor of this utility model, the inner wall of the rotor core is slidably embedded with multiple rotor bars at equal intervals along the circumferential surface.

[0011] As a low-noise rotor for a small energy-saving refrigeration motor of this utility model, one end of each of the rotor windings is embedded in the lead wire head, and the other end of each of the rotor windings is connected to the lead wire head.

[0012] As a low-noise rotor for a small energy-saving refrigeration motor according to this utility model, a central shaft is embedded between the main shaft and the auxiliary shaft.

[0013] As a low-noise rotor for a small energy-saving refrigeration motor of this utility model, the outer wall of the rotor core is provided with multiple stabilizing slots at equal intervals.

[0014] This invention provides a low-noise rotor for a small, energy-saving refrigeration motor. It offers the following advantages:

[0015] (1) The low-noise rotor of this small energy-saving refrigeration motor can effectively reduce the overall weight of the rotor through the main shaft, secondary shaft, connecting rod, bolt and limiting ring, which is conducive to improving the operating efficiency of the equipment. The lighter rotor can reduce the burden on the bearing and drive system and extend the service life of the equipment. At the same time, the appropriate centrifugal force can ensure that the motor rotor remains stable during operation, reduce vibration and noise, thereby improving the overall performance and reliability of the equipment. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an exploded view of the present invention.

[0019] In the diagram: 1. Rotor core; 2. Main shaft; 3. Secondary shaft; 4. Connecting rod; 5. Bolt; 6. Restricting ring; 7. Clamping ring; 8. Outlet head; 9. Connector; 10. Rotor winding bar; 11. Stabilizing groove; 12. Central shaft. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution: a low-noise rotor for a small, energy-saving refrigeration motor, comprising:

[0022] Rotor core 1;

[0023] The shaft connection structure is located inside the rotor core 1;

[0024] The shaft connection structure includes a main shaft 2, a secondary shaft 3, multiple connecting rods 4, multiple bolts 5, a limiting ring 6, and a retaining ring 7. The main shaft 2 and the secondary shaft 3 are both embedded in the rotor core 1 on their adjacent sides. One end of each of the multiple connecting rods 4 is fixed to the main shaft 2, and the other end of each of the multiple connecting rods 4 is fixed and embedded in the secondary shaft 3 by multiple bolts 5. The outer wall of the limiting ring 6 is embedded in the secondary shaft 3 by the retaining ring 7, and the inner wall of the limiting ring 6 is slidably sleeved on the multiple bolts 5.

[0025] In this implementation scheme: the rotor core 1 is an important component of the motor rotor, mainly serving to support the rotor windings and form the motor magnetic circuit. At the same time, the central part of the rotor core 1 is hollow, which can effectively reduce the overall weight of the rotor and improve the operating efficiency of the equipment. The lighter rotor can reduce the burden on the bearings and drive system. The main shaft 2 and the auxiliary shaft 3 are clamped with multiple connecting rods 4 to form a fixed structure. The multiple connecting rods 4 are used to change the centrifugal force generated by the rotor core 1. The appropriate centrifugal force can ensure that the motor rotor remains stable during operation, reduce vibration and noise, thereby improving the overall performance and reliability of the equipment. The multiple connecting rods 4 are fixed with multiple bolts 5. The limiting ring 6 is embedded in the auxiliary shaft 3, preventing the multiple bolts 5 from rotating and avoiding loosening. At the same time, the locking ring 7 prevents the limiting ring 6 from slipping out.

[0026] Specifically, the outer wall of the main shaft 2 is fixedly fitted with a wire outlet 8, and the outer wall of the auxiliary shaft 3 is fixedly fitted with a connector 9.

[0027] In this embodiment, the lead wire 8 is made of a metal material with good conductivity to ensure that the current can flow smoothly into and out of the rotor winding, and the connector 9 can electrically connect multiple rotor windings 10 to each other.

[0028] Specifically, multiple rotor bars 10 are slidably embedded in the inner wall of the rotor core 1 at equal intervals along the circumferential surface.

[0029] In this embodiment, the working principle of multiple rotor windings 10 is based on electromagnetic induction. When three-phase alternating current is applied to the stator windings of the motor, a rotating magnetic field is formed.

[0030] Specifically, one end of each of the multiple rotor windings 10 is embedded in the lead-out head 8, and the other end of each of the multiple rotor windings 10 is connected to the head 9.

[0031] In this embodiment: the connector 9 can connect one end of multiple rotor windings 10. When the closed rotor windings 10 cut the magnetic lines of force of the stator magnetic field, an electromotive force and current will be induced. The charged conductor will move in the magnetic field, thereby making the motor rotor rotate.

[0032] Specifically, a central shaft 12 is embedded between the main shaft 2 and the secondary shaft 3.

[0033] In this embodiment, the connection between the main shaft 2 and the secondary shaft 3 is increased by the central shaft 12 to avoid excessive torque generated by rotation.

[0034] Specifically, the outer wall of the rotor core 1 is provided with multiple stabilizing grooves 11 at equal intervals.

[0035] In this embodiment, multiple stabilizing slots 11 can make the rotor core 1 more stable during rotation.

[0036] In use, the rotor core 1 is a crucial component of the motor rotor, primarily supporting the rotor windings and forming the motor's magnetic circuit. The hollow center of the rotor core 1 effectively reduces the overall weight of the rotor, improving equipment operating efficiency. A lighter rotor also reduces the burden on bearings and the drive system. The main shaft 2 and the auxiliary shaft 3 are secured to the rotor core 1 by multiple connecting rods 4. These connecting rods 4 alter the centrifugal force generated by the rotor core 1. Appropriate centrifugal force ensures the motor rotor remains stable during operation, reducing vibration and noise, thereby improving the overall performance and reliability of the equipment. The auxiliary shaft 3 is fixed to the connecting rods 4 using multiple bolts 5. A limiting ring 6 is embedded within the auxiliary shaft 3, preventing the bolts 5 from rotating. The mechanism is designed to prevent multiple bolts 5 from loosening, and the locking ring 7 prevents the limiting ring 6 from slipping out. The lead-out head 8 is made of a metal material with good conductivity to ensure that the current can flow smoothly into and out of the rotor winding. The connector 9 can electrically connect multiple rotor windings 10 to each other. The working principle of multiple rotor windings 10 is based on electromagnetic induction. When three-phase alternating current is applied to the stator winding of the motor, a rotating magnetic field will be formed. The connector 9 can connect one end of multiple rotor windings 10. When the closed rotor windings 10 cut the magnetic lines of force of the stator magnetic field, an electromotive force and current will be induced. The charged conductor will move in the magnetic field, thereby making the motor rotor rotate. The central shaft 12 increases the connection between the main shaft 2 and the auxiliary shaft 3 to avoid excessive torque generated by rotation.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-noise rotor for a small, energy-saving refrigeration motor, characterized in that, include: Rotor core (1); The shaft connection structure is located inside the rotor core (1); The shaft connection structure includes a main shaft (2), a secondary shaft (3), multiple connecting rods (4), multiple bolts (5), a limiting ring (6), and a retaining ring (7). The main shaft (2) and the secondary shaft (3) are both embedded in the rotor core (1) on their sides that are close to each other. One end of each of the multiple connecting rods (4) is fixed on the main shaft (2), and the other end of each of the multiple connecting rods (4) is fixedly embedded in the secondary shaft (3) by multiple bolts (5). The outer wall of the limiting ring (6) is embedded in the secondary shaft (3) by the retaining ring (7), and the inner wall of the limiting ring (6) is slidably sleeved on the multiple bolts (5).

2. The low-noise rotor of a small energy-saving refrigeration motor according to claim 1, characterized in that: The outer wall of the main shaft (2) is fixedly fitted with a wire outlet (8), and the outer wall of the auxiliary shaft (3) is fixedly fitted with a connector (9).

3. The low-noise rotor of a small energy-saving refrigeration motor according to claim 2, characterized in that: The inner wall of the rotor core (1) is slidably embedded with multiple rotor bars (10) at equal distances along the circumferential surface.

4. The low-noise rotor of a small energy-saving refrigeration motor according to claim 3, characterized in that: One end of each of the rotor windings (10) is embedded in the lead wire (8), and the other end of each of the rotor windings (10) is connected to the head (9).

5. The low-noise rotor of a small energy-saving refrigeration motor according to claim 4, characterized in that: A central shaft (12) is embedded between the main shaft (2) and the secondary shaft (3).

6. The low-noise rotor of a small energy-saving refrigeration motor according to claim 5, characterized in that: The outer wall of the rotor core (1) is provided with multiple stabilizing grooves (11) at equal intervals.

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