Rotor pressing plate for synchronous motor

Abstract

The rotor pressing plate comprises a pressing plate body and a shaft paddle disc, the surface of the pressing plate body is provided with an air guide groove, the shaft paddle disc is fixedly installed on the surface of the pressing plate body and located on the inner side of the air guide groove, and the surface of the pressing plate body is provided with an axis sleeve hole used for being connected to the surface of a rotor shaft rod in a sleeved mode. The multiple threaded sleeve mounting holes are located between the adjacent air guide grooves, the shaft paddle disc comprises three flow guide ring blades, and each flow guide ring blade extends in an arc shape and is symmetrically distributed around the original point of the central axis of the axis sleeve hole. According to the utility model, the air guide grooves and the flow guide ring blades are arranged on the surface of the pressing plate body, so that the air flow is effectively guided to flow, the heat dissipation effect is enhanced, the temperature stability of a rotor in high-speed operation is ensured, and the service life of a motor is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of motor pressure plate technology, specifically a rotor pressure plate for a synchronous motor. Background Technology

[0002] In traditional synchronous motor structures, the rotor clamping plate typically employs a planar structure or a simple straight blade structure, primarily used to fix the rotor windings and provide some mechanical support. Traditional rotor clamping plate designs are relatively simple, usually lacking structures to guide airflow. When the rotor operates at high speeds, the lack of effective airflow guidance within the internal structure results in poor heat dissipation, causing the windings and other components to age easily due to excessive temperature, thus affecting the motor's lifespan. Furthermore, traditional rotor clamping plates are also inadequate in terms of airflow balance, generating significant vibration and noise during high-speed operation, further reducing the motor's stability and efficiency.

[0003] Compared to the beneficial effects of this invention, traditional technologies lack effective heat dissipation structures on the pressure plate surface, failing to effectively guide airflow and hindering rotor surface heat dissipation, resulting in poor heat dissipation and difficulty in maintaining stable rotor temperature during high-speed operation. Furthermore, traditional pressure plates lack balanced airflow control, easily causing vibration and noise, failing to meet the requirements of high-performance motors for smooth and quiet operation. Therefore, there is an urgent need for a novel rotor pressure plate structure that can improve heat dissipation performance, balance airflow, and reduce vibration and noise. In view of this, this invention addresses the existing problems by providing a rotor pressure plate for synchronous motors to solve current issues, aiming to solve the problems and improve practical value. Utility Model Content

[0004] This invention provides a rotor pressure plate structure for a synchronous motor, aiming to improve the overall performance and service life of the motor by optimizing airflow guidance and heat dissipation. The structure specifically includes the following:

[0005] A rotor pressure plate for a synchronous motor includes: a pressure plate body and a propeller disc. The surface of the pressure plate body has air guide grooves. The propeller disc is fixedly installed on the surface of the pressure plate body and located inside the air guide grooves. The surface of the pressure plate body has a central sleeve hole for fitting onto the surface of a rotor shaft. Several threaded sleeve mounting holes are located between adjacent air guide grooves. The propeller disc includes three guide vanes, each extending in an arc shape and symmetrically distributed around the origin of the central axis of the central sleeve hole. This structure, by providing multiple air guide grooves and guide vanes on the surface of the pressure plate body, can effectively guide airflow, enhance heat dissipation, ensure the temperature stability of the rotor under high-speed operation, and thus extend the service life of the motor.

[0006] In a preferred embodiment, this invention can be further configured such that the arc-shaped portion of the guide ring gradually expands from the inside out, forming a ring-shaped blade with a curved structure. The arc-shaped guide ring significantly improves the airflow guidance effect, effectively guiding the airflow along the blade, further enhancing the motor's heat dissipation performance, and reducing vibration and noise during high-speed operation.

[0007] In a preferred embodiment, this invention can be further configured such that the shaft sleeve hole is circular, and the thickness of the pressure plate disc is less than the thickness of the guide ring blade. The circular shaft sleeve hole facilitates a close fit with the rotor shaft surface, ensuring the installation accuracy of the pressure plate, while the thinner design of the pressure plate disc reduces the overall weight of the pressure plate, improving the motor's response speed and efficiency.

[0008] In a preferred embodiment, this invention can be further configured such that the pressure plate disc and the propeller disc are integrally formed, and the surface of the guide ring blade has a smooth arc surface structure. The integrally formed pressure plate disc and propeller disc enhance the overall strength of the pressure plate and avoid assembly errors. At the same time, the smooth arc surface structure reduces airflow resistance and further improves the heat dissipation effect.

[0009] In a preferred embodiment, this invention can be further configured such that a gap is provided between the inner side of the air guide groove and the outer periphery of the guide ring blade, and the inner side of the air guide groove is parallel to the surface of the guide ring blade. The gap between the air guide groove and the guide ring blade allows airflow to pass more smoothly through the outer periphery of the guide ring blade, while the parallel design prevents turbulence from forming as the airflow flows along the surface of the guide ring blade, further improving heat dissipation performance.

[0010] In a preferred embodiment, this invention can be further configured such that the pressure plate and the propeller disc are made of glass fiber reinforced plastic or carbon fiber reinforced composite material. Using glass fiber reinforced plastic or carbon fiber reinforced composite material gives the pressure plate a good strength-to-weight ratio and corrosion resistance, making it suitable for high-load and high-speed environments. At the same time, it reduces the weight of the pressure plate and improves the efficiency and reliability of the motor.

[0011] Through the above structural design, the rotor pressure plate of this utility model has significant advantages in terms of heat dissipation, stability and durability, overcomes the defects in traditional structures, and effectively improves the overall performance of synchronous motors.

[0012] The beneficial effects achieved by this utility model are as follows:

[0013] 1. In this utility model, by setting air guide grooves and guide ring blades on the surface of the pressure plate, the airflow is effectively guided, the heat dissipation effect is enhanced, the temperature stability of the rotor under high-speed operation is ensured, and the service life of the motor is extended.

[0014] 2. In this utility model, by setting multiple guide ring blades symmetrically distributed at the origin, a ring-shaped blade with a curved structure is formed, which improves the airflow guidance effect, further enhances the heat dissipation performance and airflow balance of the motor, and reduces vibration and noise during motor operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0016] Figure 2 This is a top view of one embodiment of the present invention.

[0017] Figure 3 This is a side view of one embodiment of the present invention.

[0018] Figure label:

[0019] 100, Pressure plate body; 110, Shaft sleeve hole; 120, Screw sleeve mounting hole; 130, Air guide groove; 200, Shaft propeller disc; 210, Guide ring blade. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0022] The following is in conjunction with the appendix Figures 1-3 This invention describes a rotor pressure plate for a synchronous motor, based on some embodiments of the present invention. The following are specific embodiments of the present invention, described in detail with reference to the claims, and at least two embodiments are provided to better demonstrate the practical application of this synchronous motor rotor pressure plate. Example 1

[0023] This embodiment provides a rotor pressure plate structure for a synchronous motor, comprising a pressure plate disc 100 and a shaft propeller disc 200. The pressure plate disc 100 has several air guide grooves 130 on its surface for guiding airflow and enhancing heat dissipation. The shaft propeller disc 200 is fixedly mounted on the surface of the pressure plate disc 100 and located inside the air guide grooves 130. The pressure plate disc 100 also includes a circular shaft sleeve hole 110 for fitting onto the rotor shaft to achieve stable installation. Several threaded sleeve mounting holes 120 are evenly distributed between adjacent air guide grooves 130, providing a mounting and fixing function.

[0024] Furthermore, the propeller disk 200 includes three guide ring blades 210, each extending in an arc shape and symmetrically distributed around the origin of the central axis of the shaft sleeve hole 110. This symmetrical design allows for uniform airflow guidance, resulting in excellent heat dissipation. The arc-shaped portion of each guide ring blade 210 gradually expands from the inside out, forming a ring-shaped blade structure with a curved structure to increase airflow guidance and reduce vibration and noise during high-speed operation.

[0025] In this embodiment, the pressure plate 100 and the propeller disk 200 are made of glass fiber reinforced plastic, giving the pressure plate high strength and corrosion resistance while reducing the weight of the components, making it suitable for high-speed rotation environments. The entire structure is a one-piece molded design, avoiding assembly errors in traditional assembled structures and improving overall stability. Example 2

[0026] In this embodiment, the rotor pressure plate of this invention further optimizes the structural relationship between the guide ring blade 210 and the air guide slot 130. Based on Embodiment 1, a wider gap is designed so that a certain distance is maintained between the inner side of the air guide slot 130 and the outer periphery of the guide ring blade 210, and the inner side of the air guide slot 130 is arranged parallel to the surface of the guide ring blade 210. This design allows airflow to pass more smoothly through the outer periphery of the guide ring blade 210, further improving heat dissipation performance.

[0027] Furthermore, in this embodiment, carbon fiber reinforced composite material is used as the material for the pressure plate disc 100 and the propeller disc 200 to improve impact resistance and durability. The excellent strength-to-weight ratio of carbon fiber material makes this rotor pressure plate suitable for higher speed and higher load conditions. At the same time, the pressure plate disc 100 and the propeller disc 200 adopt an integral molding structure, which further reduces airflow resistance and improves the overall efficiency of the motor.

[0028] This embodiment also adds a guide groove to the screw sleeve mounting hole 120 to ensure precise alignment when installing bolts. This design ensures that the pressure plate disc 100 is more tightly and stably mounted on the motor shaft, avoiding loosening or misalignment that may occur at high speeds.

[0029] In summary, the specific embodiments of this utility model, through optimizing the structural design of the air guide slot 130, the air guide ring 210, and the screw sleeve mounting hole 120, further improve the overall performance of the motor in terms of heat dissipation, airflow guidance, mechanical stability, and material selection. The two embodiments above demonstrate the application of this utility model in different material selections and structural optimizations, which can meet the operating requirements of synchronous motors under high load and high speed.

[0030] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rotor plate for a synchronous electric machine, characterized in that Include: The surface of the pressing plate disc body (100) is provided with a wind guide groove (130), the shaft paddle disc (200) is fixedly installed on the surface of the pressing plate disc body (100) and located at the inner side of the wind guide groove (130), the surface of the pressing plate disc body (100) is provided with a shaft sleeve hole (110) for sleeving on the surface of the rotor shaft, the number of the screw sleeve mounting hole (120) is several and located between adjacent wind guide grooves (130), the shaft paddle disc (200) includes three guide vane leaves (210), each guide vane leaf (210) is arc-shaped and symmetrically distributed around the center axis origin of the shaft sleeve hole (110).

2. A rotor plate for a synchronous machine according to claim 1, characterized in that The arc-shaped part of the guide vane leaf (210) gradually expands from inside to outside, forming a ring-shaped blade with a curved structure.

3. A rotor plate for a synchronous machine according to claim 1, characterized in that The shaft sleeve hole (110) is circular, and the thickness of the pressing plate disc body (100) is less than the thickness of the guide vane leaf (210).

4. A rotor plate for a synchronous machine according to claim 1, characterized in that The pressing plate disc body (100) and the shaft paddle disc (200) are integrally formed, and the surface of the guide vane leaf (210) is a smooth arc surface structure.

5. A rotor plate for a synchronous machine according to claim 1, characterized in that The inner side of the wind guide groove (130) and the outer periphery of the guide vane leaf (210) are provided with a gap, and the inner side of the wind guide groove (130) is parallel to the surface of the guide vane leaf (210).

6. A rotor plate for a synchronous machine according to claim 1, characterized in that The pressing plate disc body (100) and the shaft paddle disc (200) are glass fiber reinforced plastic or carbon fiber reinforced composite material components.

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