Trapezoidal magnetic shoe insertion piece type rotor assembly of plastic package motor for air conditioner

Abstract

The invention relates to the technical field of a rotor in a plastic package motor, and discloses a trapezoidal magnetic shoe insert type rotor assembly of a plastic package motor for an air conditioner, the trapezoidal magnetic shoe insert type rotor assembly comprises a rotating shaft, the outer part of the rotating shaft is slidably connected with a rotor assembly, the rotor assembly comprises a rotor iron core, and a plurality of plastic package materials are arranged in the rotor iron core. An inner surrounding iron core is fixedly connected inside the rotor iron core, a plurality of rivets are fixedly connected outside the rotor iron core, the outside of the rotor iron core is coated and connected with an adhesive, the outside of the adhesive is coated and connected with a magnetic shoe, and a plurality of trapezoidal magnetic shoe slots are formed inside the rotor iron core. According to the invention, the plastic package material improves the insulativity, the structural stability and the durability, enables the magnetic field distribution in the motor to be uniform, and optimizes the performance of the motor in an all-around manner, thereby facilitating the reduction of the vibration and noise during the operation of the motor, and improving the performance and efficiency of the motor.

Description

Technical Field

[0001] The invention relates to the technical field of rotors in plastic-sealed motors, and in particular to a trapezoidal magnetic tile insert-type rotor assembly of a plastic-sealed motor for an air conditioner. Background Art

[0002] In the development process of modern air conditioners, as people's requirements for cooling and heating efficiency, comfort and energy consumption continue to increase, the performance optimization of the motor as one of the core driving components of the air conditioner has become a key factor. The traditional motor rotor assembly has gradually exposed some limitations in structure and performance, and it is difficult to meet the growing demand for high efficiency, energy saving and stable operation.

[0003] The air conditioner plastic sealed motor trapezoidal magnetic tile insert rotor assembly contains the rotor core, trapezoidal magnetic tile, shaft and possible balance block. The rotor core is laminated with silicon steel sheets, and the magnetic tile is made of permanent magnetic material. Its working principle is that the magnetic tile forms a magnetic field, which interacts with the rotating magnetic field of the stator to generate torque transmitted to the load through the shaft, so that the motor can stably drive the air conditioner components to operate.

[0004] In the prior art, the rotors in some air conditioner plastic-sealed motors are surface-mounted rotors. Adhesive is applied between the rotor core and the magnetic tile, and a fixing fixture is used to wait for the adhesive to solidify. Due to the curing time, the production is time-consuming and inconvenient. The rotors of plastic-sealed air conditioner motors are surface-mounted rotors. The magnetic tiles are made of brittle materials, and the spatial structure determines that the magnetic tiles are easily bumped during production and transportation, causing the surface of the magnetic tiles to break or even break as a whole. Surface-mounted rotors are prone to insufficient bonding strength and may also experience magnetic tile displacement. Therefore, a trapezoidal magnetic tile insert-type rotor assembly for a plastic-sealed motor for an air conditioner is proposed to solve the above problems. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a trapezoidal magnetic tile insert-type rotor assembly for a plastic-sealed motor for an air conditioner, aiming to improve the problems in the prior art of the surface-mounted rotor of the plastic-sealed motor of the air conditioner, such as long production time, easy bumping and breakage of the magnetic tiles, insufficient bonding strength, and easy displacement, which bring many inconveniences and hidden dangers to production and product quality.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A trapezoidal magnetic tile insert-type rotor assembly of a plastic-sealed motor for an air conditioner comprises a rotating shaft, the outer portion of the rotating shaft is slidably connected with a rotor assembly, the rotor assembly comprises a rotor core, a plurality of plastic sealing materials are arranged inside the rotor core, an inner peripheral core is fixedly connected inside the rotor core, a plurality of rivets are fixedly connected outside the rotor core, an adhesive is coated and connected outside the rotor core, and a magnetic tile is coated and connected outside the adhesive;

[0008] As a further description of the above technical solution:

[0009] The rotor core is provided with a plurality of trapezoidal magnetic tile slots, and the rotor core is provided with a plurality of core rivets;

[0010] As a further description of the above technical solution:

[0011] The rotor core is provided with a plurality of peripheral disconnected slots, and the rotor core is provided with an inner circular hole;

[0012] As a further description of the above technical solution:

[0013] The inner periphery iron core is slidably connected with a rotating shaft, and the inner periphery iron core is slidably connected with a plurality of rivets.

[0014] The present invention has the following beneficial effects:

[0015] In the present invention, a trapezoidal magnetic tile slot is provided along the outer circumference of the rotor core, the outer periphery of which is disconnected and the inner periphery is small, the magnetic tiles are inserted relatively at the same level, and are integrally sealed with a plastic sealing material and positioned with a ejector pin. The trapezoidal magnetic tile reduces the magnetic gap and increases the torque stability, and the plastic sealing material improves the insulation, structural stability and durability, and also makes the magnetic field in the motor evenly distributed, thereby optimizing the motor performance in all directions, which helps to reduce the vibration and noise during the operation of the motor and improve the performance and efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a trapezoidal magnetic tile insert rotor assembly of a plastic-encapsulated motor for an air conditioner proposed by the present invention;

[0017] Figure 2 A schematic structural diagram of a rotor core of a trapezoidal magnetic tile insert rotor assembly of a plastic-encapsulated motor for an air conditioner proposed by the present invention;

[0018] Figure 3 A schematic diagram of the structure of the plastic packaging material of a trapezoidal magnetic tile insert rotor assembly of a plastic-sealed motor for an air conditioner proposed by the present invention;

[0019] Figure 4 The present invention is a schematic structural diagram of an iron core rivet buckle of a trapezoidal magnetic tile insert rotor assembly of a plastic-encapsulated motor for an air conditioner.

[0020] Legend:

[0021] 1. Rotating shaft; 2. Rotor core; 3. Trapezoidal magnetic tile slot; 4. Core rivet; 5. Outer disconnect slot; 6. Plastic packaging material; 7. Inner core; 8. Inner circular hole; 9. Adhesive; 10. Magnetic tile; 11. Riveting. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Reference Figure 1 , Figure 2 , an embodiment of the present invention provides a trapezoidal magnetic tile insert rotor assembly of a plastic-sealed motor for an air conditioner, comprising a rotating shaft 1, the rotating shaft 1 serving as the rotation support core of the entire rotor assembly, and the rotating shaft 1 providing a stable rotation axis for the rotor core 2, the inner iron core 7 and other components, ensuring that the rotor maintains a precise position and direction during rotation, thereby ensuring the stability and accuracy of the motor output power. Secondly, the surface smoothness and dimensional accuracy of the rotating shaft 1 are strictly controlled, and a good sliding connection is formed with the inner iron core 7, etc., effectively reducing friction resistance, reducing energy loss, and improving the operating efficiency of the motor. The outer sliding connection of the rotating shaft 1 is connected to the rotor assembly, and the rotor assembly includes a rotor core 2, and the rotor core 2 is one of the key components of the electromagnetic conversion of the motor. The multiple trapezoidal magnetic tile slots 3 inside accurately position and fix the magnetic tile 10, so that the magnetic field generated by the magnetic tile can efficiently interact with the stator magnetic field, generate electromagnetic torque, drive the rotor to rotate, thereby realizing the conversion of electrical energy into mechanical energy, and directly affecting the power output performance of the motor. Multiple core rivets 4 greatly enhance the structural stability of the rotor core 2 itself. When the motor is running, facing the complex mechanical environment, multiple plastic packaging materials 6 are arranged inside the rotor core 2. The plastic packaging materials 6 can also play a certain role in shock absorption and noise reduction, absorb and buffer the vibration and noise generated by the operation of the motor, improve the stability and comfort of the motor operation, create a relatively quiet operating environment for the air conditioner, and enhance the user experience.

[0024] The inner part of the rotor core 2 is fixedly connected with an inner core 7, which is tightly surrounded by the outer part of the rotating shaft 1 and forms a high-precision sliding fit with the rotating shaft 1. It provides precise positioning and stable support for the rotor core 2, ensuring that the rotor core 2 always maintains good concentricity during rotation, reducing the unbalanced force and vibration caused by eccentricity, thereby improving the running stability and reliability of the motor, and reducing noise and wear. The outer part of the rotor core 2 is fixedly connected with a plurality of rivets 11, and the outer part of the rotor core 2 is coated with an adhesive 9. The adhesive 9 coated between the rotor core 2 and the magnetic tile 10 plays a key role in connection and performance optimization. First of all, it can fill the microscopic unevenness on the surface of the rotor core 2 and the magnetic tile 10, so that the two can be in close contact, thereby improving the magnetic permeability, enhancing the transmission efficiency of the magnetic field between the two, optimizing the electromagnetic performance of the motor, and improving the output power and efficiency of the motor. The outer coating of the adhesive 9 is connected with a magnetic tile 10, which can ensure that the motor can operate stably under different load conditions, meet various functional requirements of the air conditioner such as cooling, heating and wind speed adjustment, and improve the energy utilization rate of the motor to achieve the goal of energy saving and emission reduction;

[0025] Reference Figure 3 , Figure 4 , a plurality of trapezoidal magnetic tile slots 3 are provided inside the rotor core 2, and the unique trapezoidal design of the trapezoidal magnetic tile slots 3 is to achieve a tight and stable fit with the magnetic tile 10. On the one hand, this shape can accurately limit the position of the magnetic tile 10, so that it will not be displaced, loosened or fall off during the operation of the motor, ensuring the uniformity and stability of the magnetic field, and thus ensuring that the output torque of the motor is stable and reliable. A plurality of core rivets 4 are provided inside the rotor core 2, and the core rivets 4 play a key reinforcement role in the complex mechanical environment of the motor operation. When the motor rotates at high speed, the rotor core 2 will be subjected to huge centrifugal force, which has a tendency to cause the core to expand outward or even break, and the core rivets 4 form an integral force-bearing structure by tightly connecting the various parts of the core together, which effectively resists the action of centrifugal force and prevents the core from being damaged by cracks, delamination, etc.

[0026] Reference Figures 2 to 4The rotor core 2 is provided with a plurality of peripheral disconnect slots 5. The existence of these slots plays an important role in optimizing the magnetic circuit distribution inside the motor. By reasonably setting the peripheral disconnect slots 5, the magnetic flux can be guided to be distributed more evenly and reasonably in the core, the occurrence of local magnetic saturation can be reduced, the hysteresis loss can be reduced, and the effective utilization rate of magnetic energy can be improved, thereby improving the efficiency of the motor, reducing energy waste, and achieving energy-saving effects. The rotor core 2 is provided with an inner circular hole 8. The inner circular hole 8 located at the center of the rotor core 2 mainly serves to provide an accurate installation positioning reference and rotation space for the shaft 1. The strict control of its dimensional accuracy and surface roughness ensures that the shaft 1 can be smoothly inserted and maintain a high degree of coaxiality with the rotor core 2.

[0027] This high-precision fit not only reduces the friction and wear between the shaft 1 and the inner hole 8, extending the service life of both, but also helps to reduce the noise and vibration during the operation of the motor, and improves the running stability and reliability of the motor. The inner peripheral core 7 is slidably connected to the shaft 1, and the rotor core 2 is slidably connected to the rotor core 2 with multiple rivets 11. The multiple rivets 11 structures distributed on the outside of the rotor core 2 are of great significance for enhancing the overall strength and stability of the rotor core 2. When the motor is running, the rotor core 2 will be affected by a variety of complex forces, such as the strong centrifugal force generated by high-speed rotation, the effect of electromagnetic force, and the impact force caused by vibration.

[0028] Working principle: A trapezoidal magnetic tile slot 3 is opened along the outer circumference inside the rotor core 2 to avoid magnetic leakage. The outer circumference of the slot 5 is disconnected, and the inner circumference is as small as possible. When the magnetic tile 10 is inserted, it is inserted at the same level relative to each other. The rotor core 2 and the magnetic tile 10 are integrally sealed with a plastic sealing material 6. The ejector pin in the plastic sealing material 6 determines the relative position of the magnetic tile 10 and the rotor core 2. The magnetic tile 10 is trapezoidal in shape, which helps to reduce the magnetic gap between the magnetic steel and the stator, thereby increasing the torque and stability. The plastic sealing material 6 improves the insulation performance of the rotor core 2. The magnetic tile 10 is trapezoidal in shape, which helps to reduce Reduce the magnetic gap between the magnet and the stator, thereby increasing torque and stability. To increase the stability and durability of the structure, a trapezoidal magnetic tile slot 3 is opened along the outer circumference inside the rotor core 2. The magnetic tile 10 is inside the rotor core 2 and sealed by plastic sealing to form a more uniform magnetic field distribution inside the motor, which helps to reduce the vibration and noise during the operation of the motor and improve the performance and efficiency of the motor. It can accurately reduce the magnetic gap between the magnet and the stator, enhance the magnetic field coupling, reduce the magnetic flux loss, increase the torque output, make the motor drive the load more powerful, respond to changes in working conditions more quickly, and ensure efficient operation. At the same time, a stable and uniform magnetic field reduces vibration and noise, optimizes the working state, improves efficiency and reliability, meets diverse needs, and enhances the practical value and market prospects of the motor.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A trapezoidal magnetic tile insert rotor assembly for a plastic-encapsulated motor for an air conditioner, comprising a rotating shaft (1), characterized in that: The outside of the rotating shaft (1) is slidably connected to a rotor assembly, the rotor assembly comprising a rotor core (2), a plurality of plastic packaging materials (6) are arranged inside the rotor core (2), an inner peripheral core (7) is fixedly connected inside the rotor core (2), a plurality of rivets (11) are fixedly connected outside the rotor core (2), an adhesive (9) is coated on the outside of the rotor core (2), and a magnetic tile (10) is coated on the outside of the adhesive (9).

2. The trapezoidal magnetic tile insert rotor assembly of a plastic-encapsulated motor for an air conditioner according to claim 1, characterized in that: A plurality of trapezoidal magnetic tile slots (3) are provided inside the rotor core (2), and a plurality of core rivets (4) are provided inside the rotor core (2).

3. The trapezoidal magnetic tile insert rotor assembly of a plastic-encapsulated motor for an air conditioner according to claim 1, characterized in that: A plurality of peripheral disconnected slots (5) are provided inside the rotor core (2), and an inner circular hole (8) is provided inside the rotor core (2).

4. The trapezoidal magnetic tile insert rotor assembly of a plastic-encapsulated motor for an air conditioner according to claim 1, characterized in that: The inner periphery iron core (7) is slidably connected to a rotating shaft (1), and the inner periphery iron core (2) is slidably connected to a plurality of rivets (11).

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