Motor rotor copper end ring

Abstract

The utility model relates to the technical field of motor parts of specific models, and discloses a motor rotor copper end ring, which comprises a ring body, a plurality of heat dissipation fins are fixedly connected around the middle part of the upper end of the ring body, a plurality of heat dissipation grooves are arranged around the ring body, a plurality of heat dissipation holes are arranged at the lower ends of the inner walls of the heat dissipation grooves, and the heat dissipation fins are fixedly connected with the ring body. The lower end of the ring body is provided with a rotor main body, the periphery of the rotor main body is fixedly connected with a plurality of cooling fins, the middle part of the ring body is fixedly connected with an outer cylinder, the middle part of the outer cylinder is provided with an inner cylinder, and the middle part of the inner cylinder is in threaded connection with a screw. According to the utility model, the heat dissipation fins, the heat dissipation grooves and the heat dissipation fins form a heat dissipation system, when the rotor main body rotates, hot air in the motor can be discharged through the heat dissipation holes and the heat dissipation grooves, the heat dissipation fins increase the contact area between the ring body and the air, and the heat dissipation devices ensure that the heat dissipation effect of the device is better.

Description

Technical Field

[0001] The utility model relates to the technical field of specific model motor parts, in particular to a motor rotor copper end ring. Background Art

[0002] The copper end rings of motor rotors are widely used. During the operation of the motor, the rotor needs to rotate at high speed to generate power. As an important component of the motor rotor, the copper end rings mainly play the role of conducting current, fixing the rotor winding, and balancing electromagnetic forces.

[0003] Traditional motors consist of two parts: a rotor and a stator. Their function is to convert electrical energy into mechanical energy and vice versa. The rotor is the rotating component in the motor. The copper end rings on it receive the power for conversion. The end ring structure is stable inside the motor to prevent vibration caused by the rotor's rotation. The anti-slip ring in the end ring's insert is fixedly connected to the shaft, ensuring the stable rotation of the rotor inside the motor.

[0004] However, due to material and structural limitations, traditional copper end rings for motor rotors often have low heat dissipation efficiency. As operating speed increases, heat accumulation becomes severe. Poor heat dissipation not only causes the motor temperature to rise, affecting its efficiency and output power, but can also cause aging of the insulation material, thereby shortening the motor's service life. Therefore, a new copper end ring for motor rotors has been proposed to address this issue. Traditional copper end ring designs are inadequate when dealing with complex mechanical stresses. During high-speed rotation, the motor rotor is subject to centrifugal force and other forces, which can easily lead to stress concentration at the copper end ring. This stress concentration can cause deformation of the copper end ring, seriously affecting the motor's operating stability and reliability. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a motor rotor copper end ring, which aims to improve the problems of traditional devices in the prior art in terms of stress dispersion and heat dissipation.

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

[0007] A motor rotor copper end ring, comprising a ring body, a plurality of heat dissipation fins fixedly connected around the middle of the upper end of the ring body, a plurality of heat dissipation grooves formed around the ring body, a plurality of heat dissipation holes formed at the lower ends of the inner walls of the plurality of heat dissipation grooves, an oil filling hole formed on one side of the middle of the upper end of the ring body, a sealing ring provided at the lower end of the ring body, and an outer cylinder fixedly connected to the middle of the ring body;

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

[0009] An inner cylinder is provided in the middle of the outer cylinder, and a screw is threadedly connected to the middle of the inner cylinder;

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

[0011] The middle part of the ring body is provided with a rotor body, and a plurality of bolt holes are opened around the rotor body. The inner cylinder is fixedly connected to the middle part of the upper end of the rotor body.

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

[0013] A plurality of bolt holes are provided around the ring body, and a plurality of bolt posts are provided inside the plurality of bolt holes;

[0014] As a further description of the above technical solution:

[0015] The rotor body is fixedly connected to a plurality of heat sinks around its periphery, and the outer cylinder is provided with a slide groove 1;

[0016] As a further description of the above technical solution:

[0017] A plurality of sliding grooves 2 are provided around the lower middle portion of the inner cylinder, and the outer wall of the inner cylinder is slidably connected to the inner wall of the outer cylinder;

[0018] As a further description of the above technical solution:

[0019] The upper portion of the second chute is slidably connected to a wedge-shaped slider, and one side of the middle portion of the wedge-shaped slider is movably connected to the first chute;

[0020] As a further description of the above technical solution:

[0021] One end of the sliding groove is fixedly connected with a spring, and one side of the spring is connected to the wedge-shaped sliding block.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, the heat sink rotates under the drive of the rotor main body structure. The rotation of the heat sink discharges the hot air generated by the rotation of the rotor main body in the motor from the heat dissipation holes. The hot air discharged from the heat dissipation holes is evenly released through the heat dissipation grooves. The heat dissipation fins can increase the contact area between the ring body and the air, thereby improving the heat dissipation effect, thereby achieving a more efficient heat dissipation effect.

[0024] 2. In the present invention, with the cooperation of the force dissipation groove, when the screw is turned downward, the lower end of the ring body will squeeze the wedge-shaped slider to slide inward, and the wedge-shaped slider slides through the first and second slide grooves and squeezes the spring in the first slide groove. When the screw reaches the bottom end, the wedge-shaped slider can press the wedge-shaped slider and clamp the outer tube and the inner tube. With the cooperation of the bolt column and the bolt hole, the rotor body and the ring body are integrated, so as to solve the problem that the traditional copper end ring design is insufficient in dealing with complex mechanical stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a copper end ring of a motor rotor proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the overall disassembly of the copper end ring of the motor rotor proposed by the utility model;

[0027] Figure 3 This is a partial structural diagram of a copper end ring of a motor rotor proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the partially disassembled structure of a motor rotor copper end ring proposed by the utility model;

[0029] Figure 5 The present invention is a schematic structural diagram of a heat sink for a copper end ring of a motor rotor.

[0030] Legend:

[0031] 1. Ring body; 2. Heat dissipation fins; 3. Heat dissipation grooves; 4. Oil filling holes; 5. Force dissipation grooves; 6. Heat dissipation holes; 7. Bolts; 8. Bolt holes; 9. Sealing rings; 10. Screws; 11. Inner cylinder; 12. Outer cylinder; 13. Wedge-shaped slider; 14. Spring; 15. Slideway 1; 16. Heat sink; 17. Rotor body; 18. Slideway 2. DETAILED DESCRIPTION

[0032] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 3The utility model provides an embodiment: a motor rotor copper end ring, comprising a ring body 1, a plurality of heat dissipation fins 2 are fixedly connected around the middle of the upper end of the ring body 1, a plurality of heat dissipation grooves 3 are opened around the ring body 1, and a plurality of heat dissipation holes 6 are opened at the lower ends of the inner walls of the plurality of heat dissipation grooves 3, an oil filling hole 4 is opened on one side of the middle of the upper end of the ring body 1, a sealing ring 9 is provided at the lower end of the ring body 1, an outer cylinder 12 is fixedly connected to the middle of the ring body 1; an inner cylinder 11 is provided in the middle of the outer cylinder 12, and a screw 10 is threadedly connected to the middle of the inner cylinder 11; a rotor main body 17 is provided in the middle of the ring body 1, a plurality of bolt holes 8 are opened around the rotor main body 17, and the inner cylinder 11 is fixedly connected to the middle of the upper end of the rotor main body 17; a plurality of bolt holes 8 are opened around the ring body 1, and a plurality of bolt columns 7 are provided on the inner sides of the plurality of bolt holes 8.

[0034] In an embodiment of a motor rotor copper end ring provided by the present invention, the first aspect is the structural design. The ring body 1 serves as the core component, and a plurality of heat dissipation fins 2 are firmly fixed around the middle of its upper end. At the same time, a plurality of heat dissipation grooves 3 are provided around the ring body 1. The lower ends of the inner walls of these heat dissipation grooves 3 are further provided with a plurality of heat dissipation holes 6. The heat dissipation fins 2, heat dissipation holes 6, and heat dissipation grooves 3 form a heat dissipation channel network, which greatly improves the heat dissipation efficiency. An oil filling hole 4 is provided on one side of the middle of the upper end of the ring body 1 to facilitate the injection of lubricating oil and ensure the smooth operation of the motor. At the lower end of the ring body 1, the presence of a sealing ring 9 effectively prevents oil leakage and impurity intrusion. In the middle of the ring body 1, the outer cylinder 12 and the inner cylinder 11 cooperate with each other. The inner cylinder 11 is firmly connected to the middle of the upper end of the rotor body 17 by screws 10, providing solid support for the entire structure. A plurality of bolt holes 8 are evenly distributed around the ring body 1, and a plurality of bolt posts 7 are neatly arranged inside each bolt hole 8, enhancing the stability and reliability of the structure.

[0035] Reference Figure 3-Figure 5 The rotor body 17 is fixedly connected to a plurality of heat sinks 16 around its periphery, and a slide groove 15 is provided on the outer cylinder 12; a plurality of slide grooves 18 are provided around the lower middle part of the inner cylinder 11, and the outer wall of the inner cylinder 11 is slidably connected to the inner wall of the outer cylinder 12; a wedge-shaped slider 13 is slidably connected to the upper part of the slide groove 18, and one side of the middle part of the wedge-shaped slider 13 is movably connected to the slide groove 15; a spring 14 is fixedly connected to one end of the slide groove 15, and one side of the spring 14 is connected to the wedge-shaped slider 13.

[0036] In this embodiment of the present invention, multiple cooling fins 16 are fixedly attached to the periphery of the rotor body 17. When the rotor body 17 rotates, heat is dissipated from the motor interior, further enhancing the heat dissipation efficiency of the entire device. A first chute 15 on the outer cylinder 12 cooperates with multiple second chute 18 around the lower midsection of the inner cylinder 11, allowing the outer wall of the inner cylinder 11 to slide smoothly on the inner wall of the outer cylinder 12. The wedge-shaped slider 13 cleverly slides along the second chute 18, with one side of its midsection also slidingly connected to the first chute 15. A spring 14 is fixedly attached to one end of the first chute 15, one side of which is connected to the wedge-shaped slider 13. During motor operation, when the rotor is subjected to various forces, the sliding of the inner cylinder 11 within the outer cylinder 12 and the sliding of the wedge-shaped slider 13 along the first and second chute 15, 18, effectively disperse and buffer stress. The spring 14, through its elastic deformation, provides a rebound force for the wedge-shaped slider 13, making the entire structure more stable and reliable in complex mechanical environments. The stress dissipation groove 5 is chamfered to ensure that the stress on the ring body 1 can be dispersed as much as possible, thereby ensuring the normal operation of the ring body 1.

[0037] Working Principle: The multiple heat dissipation fins 2 distributed throughout the ring body 1 significantly increase the contact area with the surrounding air, allowing heat to be transferred more quickly from the end ring to the air. Simultaneously, the multiple heat dissipation slots 3 formed around the ring body 1 further increase the surface area for heat dissipation, while the multiple heat dissipation holes 6 at the lower ends of the inner walls of the heat dissipation slots 3 form a three-dimensional heat dissipation channel. When heat is generated within the motor, the rotor body 17 drives the heat dissipation fins 16 to rotate, and the hot air within the motor is expelled through the heat dissipation holes 6 and heat dissipation slots 3 by the rotating heat dissipation fins 16. These heat dissipation structures work together to promote the flow and exchange of hot air, effectively dissipating heat and preventing overheating that can affect the motor's performance and lifespan. Structurally, the outer cylinder 12 and inner cylinder 11 in the middle of the ring body 1 are cleverly coordinated. The inner cylinder 11 is tightly fixed to the rotor body 17 via screws 10, ensuring the stability of the entire structure. The wedge-shaped sliders 13 in the second chute 18, which are located around the lower side of the middle portion of the inner cylinder 11, slide smoothly along the first chute 15. The spring 14, fixedly connected to one end of the slideway 15, plays a crucial role in buffering this process. When the wedge-shaped slider 13 is moved by an external force, the spring 14 is compressed or stretched, thereby absorbing and storing energy. When the external force disappears, the spring 14 releases this energy, pushing the wedge-shaped slider 13 back to its original position. In this way, the coordinated action of the spring 14 and the wedge-shaped slider 13 effectively buffers and disperses the various stresses generated during motor operation, reducing their impact and damage to the end ring structure, and ensuring stable and continuous rotation of the rotor. The multiple heat sinks 16 surrounding the rotor body 17 further enhance the overall heat dissipation effect. They quickly transfer heat generated by the rotor body 17 to the surrounding environment, reducing the temperature of the rotor body 17. In addition, the multiple bolt holes 8 arranged around the ring body 1 and the multiple bolt posts 7 positioned within the bolt holes 8 not only strengthen the connection between the ring body 1 and other components, but also disperse stress to a certain extent, improving the mechanical strength and reliability of the entire structure. The stress dissipation grooves 5 are chamfered to ensure that the stresses exerted on the ring body 1 are dispersed as much as possible, ensuring the normal operation of the ring body 1.

[0038] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A motor rotor copper end ring, comprising a ring body (1), characterized in that: A plurality of heat dissipation fins (2) are fixedly connected around the middle of the upper end of the ring body (1), a plurality of heat dissipation grooves (3) are provided around the ring body (1), a plurality of heat dissipation holes (6) are provided at the lower ends of the inner walls of the plurality of heat dissipation grooves (3), an oil filling hole (4) is provided on one side of the middle of the upper end of the ring body (1), a sealing ring (9) is provided at the lower end of the ring body (1), and an outer cylinder (12) is fixedly connected to the middle of the ring body (1).

2. The motor rotor copper end ring according to claim 1, characterized in that: An inner cylinder (11) is provided in the middle of the outer cylinder (12), and a screw (10) is threadedly connected to the middle of the inner cylinder (11).

3. The motor rotor copper end ring according to claim 2, characterized in that: A rotor body (17) is provided in the middle of the ring body (1), a plurality of bolt holes (8) are provided around the rotor body (17), and the inner cylinder (11) is fixedly connected to the middle of the upper end of the rotor body (17).

4. The motor rotor copper end ring according to claim 1, characterized in that: A plurality of bolt holes (8) are provided around the ring body (1), and a plurality of bolt posts (7) are provided inside the plurality of bolt holes (8).

5. The motor rotor copper end ring according to claim 3, characterized in that: The rotor body (17) is fixedly connected to a plurality of heat sinks (16) around its periphery, and a slide groove (15) is provided on the outer cylinder (12).

6. The motor rotor copper end ring according to claim 2, characterized in that: A plurality of sliding grooves (18) are provided around the lower middle portion of the inner cylinder (11), and the outer wall of the inner cylinder (11) is slidably connected to the inner wall of the outer cylinder (12).

7. The motor rotor copper end ring according to claim 6, characterized in that: The upper portion of the second chute (18) is slidably connected to a wedge-shaped slider (13), and one side of the middle portion of the wedge-shaped slider (13) is movably connected to the first chute (15).

8. The motor rotor copper end ring according to claim 5, characterized in that: One end of the slide groove (15) is fixedly connected to a spring (14), and one side of the spring (14) is connected to the wedge-shaped slider (13).

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