EVO drive motor shaft

By designing a liquid circulation system with a liquid flow channel and liquid cooler on the EVO drive motor shaft, the problem of the motor shaft lacking self-heating was solved, achieving a continuous cooling effect and improving the reliability and service life of the motor.

CN224684022UActive Publication Date: 2026-08-25JIN YICHENG (NANTONG) PRECISION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521218287.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-08-25
Estimated Expiration
2035-06-16

AI Technical Summary

Technical Problem

The existing EVO drive motor shaft lacks a self-heating structure, which leads to high temperatures during operation, causing a decrease in motor performance and thermal deformation of the shaft material, thus reducing the reliability and service life of the motor.

Method used

Liquid flow channels are opened at both ends of the motor shaft and sealed with sealing plugs. Liquid cooling radiators and flow structures are installed to achieve liquid circulation cooling. The liquid flows under mechanical seal conditions using rotating rings and flow rings with high heat dissipation effect. After being cooled by the liquid cooling radiator, it flows back to form a continuous liquid circulation cooling system.

Benefits of technology

It effectively reduces the temperature of the motor shaft, preventing motor performance degradation and shaft material thermal deformation caused by excessive temperature, thereby improving motor reliability and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides EVO drive motor axle. EVO drive motor axle includes: mounting panel, axle, liquid tank, the top of mounting panel is fixedly connected in the liquid tank, the top of liquid tank is equipped with liquid cooling radiator, the top of liquid cooling radiator is equipped with return flow pipe, the top of return flow pipe is equipped with first flow structure, first flow structure contains rotary ring and flow ring, the inner surface of flow ring is located rotary ring. The utility model provides EVO drive motor axle, and the heat is passed through the high thermal conductivity axle body inner surface surface and is given cooling liquid rapidly through this design, and the cooling liquid of being heated again flows out axle body through swivel joint, and the return flow after heat dissipation through liquid cooling radiator, so this cycle is back and forth, realizes the sustained cooling of motor axle, effectively reduces axle body temperature, prevents the motor performance decline and the thermal deformation of axle body material because of temperature is too high, improves the reliability and life of motor.
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Description

Technical Field

[0001] This utility model relates to the field of EVO drive motor shaft technology, and in particular to EVO drive motor shaft. Background Technology

[0002] The EVO drive motor adopts advanced electromagnetic design and lightweight materials, significantly improving power density. Taking some vehicle models as an example, the motor size is smaller than that of traditional similar products, while the power is increased. Its windings use high-purity copper materials and employ special insulation technology to reduce resistance and energy loss. At the same time, the motor core uses new silicon steel sheets, which have low hysteresis loss characteristics. The optimized magnetic circuit design makes the magnetic field distribution more uniform, further improving the overall performance of the motor and achieving efficient power output.

[0003] The motor shaft supports rotating components such as the rotor through bearings, ensuring stability and alignment during operation. The motor shaft is precisely designed to fix the relative position of the rotor and stator, ensuring uniform air gap and avoiding frictional losses.

[0004] The existing EVO drive motor shaft lacks a self-heating structure. The high temperature generated during shaft operation will cause a decrease in motor performance and thermal deformation of the shaft material, reducing the reliability and service life of the motor.

[0005] Therefore, it is necessary to provide an EVO drive motor shaft to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides an EVO drive motor shaft, which solves the problem that the lack of self-heating in the VO drive motor shaft easily generates high temperatures during operation, causing material thermal deformation and reducing the reliability and service life of the motor.

[0007] To solve the above-mentioned technical problems, the EVO drive motor shaft provided by this utility model includes: a mounting plate and a shaft;

[0008] A liquid tank is fixedly connected to the top of a mounting plate. A liquid cooling radiator is installed on the top of the liquid tank. A return pipe is installed on the top of the liquid cooling radiator. A first flow structure is installed at the top of the return pipe. The first flow structure includes a rotating ring and a flow ring. The rotating ring is located on the inner surface of the flow ring. A conveying assembly is installed on the top of the mounting plate. A conveying pipe is installed at the outlet of the conveying assembly. A second flow structure is installed at the other end of the conveying pipe.

[0009] Multiple reinforcing rings are installed on corresponding positions on the outer surface of the shaft. One of the reinforcing rings has an injection port and a return hole on its outer surface. Two connecting pipes with fixing heads are installed on the outer surface of one of the reinforcing rings. The other end of each of the two fixing heads is fixedly connected to a connecting pipe. Both ends of the shaft have through liquid flow channels. Both ends of the shaft are threaded with sealing plugs. A partition block is installed inside the liquid flow channel.

[0010] The rotating ring and the flow ring are connected by a mechanical rotating structure to ensure sealing during rotation. The sealing plug seals the threads at both ends of the liquid flow channel. The two connecting pipes correspond to the injection port and the return port, which are located on both sides of the partition block.

[0011] Preferably, the delivery assembly includes a protective shell, a straw, and a miniature delivery component, wherein the protective shell is used to mount the miniature delivery component that provides delivery force.

[0012] Preferably, an installation component is installed at one end of both the first flow structure and the second flow structure, and a channel for liquid flow is provided between the rotating ring and the flow ring.

[0013] Both the rotating ring and the flow ring are made of materials with high heat dissipation performance.

[0014] Preferably, the mounting assembly includes a fixing plate and a fixing hole, wherein the fixing hole is formed on the fixing plate.

[0015] Preferably, the liquid-cooled radiator includes heat dissipation fins, a heat dissipation base, and a fan, wherein the heat dissipation base is used to fix the heat dissipation fins;

[0016] The liquid flows through channels inside the heat sink fins, and the fan is used to increase the airflow speed to assist in heat dissipation.

[0017] Preferably, the injection port and the reflux hole both penetrate the reinforcing ring and communicate with the liquid flow channel, and the outer surface of the reinforcing ring is a polygonal carbon fiber structure.

[0018] Compared with related technologies, the EVO drive motor shaft provided by this utility model has the following beneficial effects:

[0019] This utility model provides an EVO drive motor shaft. To improve the heat dissipation of the EVO drive motor shaft during operation, two interconnected liquid flow channels are opened at both ends of the shaft, and the openings at both ends of the shaft are sealed with four sealing plugs. A partition block is fixedly connected inside the liquid flow channels, allowing liquid to be injected from the inlet and discharged from the return hole, achieving liquid circulation. A first flow structure and a second flow structure are respectively installed on the outer surface of the shaft. The first and second flow structures are connected to the return hole via connecting pipes and the inlet, respectively. During shaft rotation, the rotating ring rotates on the inner surface of the flow ring, allowing liquid to flow through the channel between the rotating ring and the flow ring. A mechanical seal is applied between the two to prevent... Liquid leakage is followed by the delivery component injecting the liquid into the second flow structure, then into the liquid flow channel through the injection port, and finally flowing into the first flow structure through the return hole. After being cooled by the liquid cooler, it flows back into the liquid tank, forming a liquid circulation. This circulation removes heat from the shaft and assists in shaft cooling. Through this design, heat is quickly transferred to the coolant through the highly thermally conductive inner surface of the shaft. The heated coolant then flows out of the shaft through the rotary joint, is cooled by the liquid cooler, and flows back. This cycle repeats continuously, achieving continuous cooling of the motor shaft, effectively reducing the shaft temperature, preventing motor performance degradation and thermal deformation of the shaft material due to excessive temperature, and improving the reliability and service life of the motor. Attached Figure Description

[0020] Figure 1 A schematic diagram of a preferred embodiment of the EVO drive motor shaft provided by this utility model;

[0021] Figure 2 A schematic diagram of the first flow structure is provided for this utility model;

[0022] Figure 3 A schematic diagram of the structure of the liquid flow channel is provided for this utility model;

[0023] Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0024] Figure 5 A schematic diagram of the structure of the miniature conveying component provided for this utility model.

[0025] The following are the labeling elements in the diagram: 1. Mounting plate, 2. Liquid tank, 3. Liquid cooler, 4. Return pipe, 5. Shaft, 6. First flow structure, 601. Rotating ring, 602. Flow ring, 7. Mounting assembly, 701. Fixing plate, 702. Fixing hole, 8. Second flow structure, 9. Delivery pipe, 10. Delivery assembly, 101. Protective shell, 102. Suction tube, 103. Miniature delivery component, 11. Reinforcing ring, 12. Return hole, 13. Inlet, 14. Liquid flow channel, 15. Separator block, 16. Sealing plug, 17. Connecting pipe, 18. Fixing head, 19. Connecting pipe. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the EVO drive motor shaft provided by this utility model; Figure 2 A schematic diagram of the first flow structure is provided for this utility model; Figure 3 A schematic diagram of the structure of the liquid flow channel is provided for this utility model;

[0028] Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 5 This invention provides a structural schematic diagram of a miniature conveying component. The EVO drive motor shaft includes: a mounting plate 1 and a shaft 5;

[0029] Liquid tank 2 is fixedly connected to the top of mounting plate 1. Liquid cooling radiator 3 is installed on the top of liquid tank 2. Return pipe 4 is installed on the top of liquid cooling radiator 3. First flow structure 6 is installed at the top end of return pipe 4. First flow structure 6 includes rotating ring 601 and flow ring 602. Rotating ring 601 is located on the inner surface of flow ring 602. Conveying assembly 10 is installed on the top of mounting plate 1. Conveying pipe 9 is installed at the outlet of conveying assembly 10. Second flow structure 8 is installed at the other end of conveying pipe 9.

[0030] Multiple reinforcing rings 11 are respectively installed on corresponding positions on the outer surface of the shaft 5. One of the reinforcing rings 11 has an injection port 13 and a return hole 12 on its outer surface. Two connecting pipes 17 with fixing heads 18 are respectively installed on the outer surface of one of the reinforcing rings 11. The other end of each of the two fixing heads 18 is fixedly connected to a connecting pipe 19. Both ends of the shaft 5 have through liquid flow channels 14. Both ends of the shaft 5 are threaded with sealing plugs 16. A partition block 15 is installed inside the liquid flow channel 14.

[0031] The rotating ring 601 and the flow ring 602 are connected by a mechanical rotating structure to ensure sealing during rotation. The sealing plug 16 seals the two ends of the liquid flow channel 14 with threads. The two connecting pipes 17 correspond to the injection port 13 and the return hole 12 respectively. The injection port 13 and the return hole 12 are located on both sides of the partition block 15 to facilitate liquid flow. The two connecting pipes 19 are connected to the inner surfaces of the first flow structure 6 and the second flow structure 8 respectively.

[0032] The delivery assembly 10 includes a protective shell 101, a straw 102, and a miniature delivery component 103. The protective shell 101 is used to install the miniature delivery component 103, which provides delivery force.

[0033] The straw 102 is used to connect the inlet of the miniature delivery component 103 to the liquid tank 2.

[0034] An installation component 7 is installed at one end of both the first flow structure 6 and the second flow structure 8, and a channel for liquid flow is provided between the rotating ring 601 and the flow ring 602.

[0035] Both the rotating ring 601 and the flow ring 602 are made of materials with high heat dissipation performance.

[0036] The mounting component 7 includes a fixing piece 701 and a fixing hole 702, wherein the fixing hole 702 is formed on the fixing piece 701;

[0037] Mounting component 7 is used to fix the flow ring 602 in the flow structure.

[0038] The liquid-cooled radiator 3 includes heat dissipation fins, a heat dissipation base and a fan, and the heat dissipation base is used to fix the heat dissipation fins.

[0039] The liquid flows through channels inside the heat sink fins, and the fan is used to increase the airflow speed to assist in heat dissipation.

[0040] The injection port 13 and the return hole 12 both pass through the reinforcing ring 11 and communicate with the liquid flow channel 14. The outer surface of the reinforcing ring 11 is a polygonal carbon fiber structure.

[0041] Carbon fiber structures can reduce weight.

[0042] The working principle of the EVO drive motor shaft provided by this utility model is as follows:

[0043] Two interconnected liquid flow channels 14 are opened at both ends of the shaft 5, and the openings at both ends of the shaft 5 are sealed by four sealing plugs 16. The liquid flow channels 14 are fixedly connected to the interior of the liquid flow channels 14, so that the liquid can be injected from the injection port 13 and discharged from the return port 12 to realize liquid circulation. A first flow structure 6 and a second flow structure 8 are respectively installed on the outer surface of the shaft 5. The first flow structure 6 and the second flow structure 8 are connected to the return port 12 through the connecting pipe 17 and the injection port 13, respectively. During the rotation of the shaft 5, the rotating ring 601 will rotate on the inner surface of the flow ring 602, so that the liquid can flow through the channel between the rotating ring 601 and the flow ring 602. The two are mechanically sealed to prevent liquid leakage. Then, the liquid is injected into the interior of the second flow structure 8 through the conveying component 10, and then into the liquid flow channel 14 through the injection port 13. Finally, it flows into the interior of the first flow structure 6 through the return port 12. Finally, it is cooled by the liquid cooling radiator 3 and flows back to the liquid tank 2 to form a liquid circulation, which can remove the heat inside the shaft 5 and assist in the cooling of the shaft 5.

[0044] Compared with related technologies, the EVO drive motor shaft provided by this utility model has the following beneficial effects:

[0045] To improve heat dissipation during EVO drive motor shaft operation, two interconnected liquid flow channels 14 are opened at both ends of shaft 5, and the openings at both ends of shaft 5 are sealed by four sealing plugs 16. A partition block 15 is fixedly connected inside the liquid flow channels 14, allowing liquid to be injected from the injection port 13 and discharged from the return port 12, achieving liquid circulation. A first flow structure 6 and a second flow structure 8 are respectively installed on the outer surface of shaft 5. The first flow structure 6 and the second flow structure 8 are connected to the return port 12 via connecting pipes 17 and the injection port 13, respectively. During shaft 5 rotation, the rotating ring 601 rotates on the inner surface of the flow ring 602, allowing liquid to flow through the channel between the rotating ring 601 and the flow ring 602, with a mechanical seal between them. To prevent liquid leakage, the liquid is then injected into the second flow structure 8 through the conveying component 10, and then into the liquid flow tank 14 through the injection port 13. Finally, it flows into the first flow structure 6 through the return hole 12, and after being cooled by the liquid cooler 3, it flows back into the liquid tank 2, forming a liquid circulation. This can remove the heat inside the shaft 5 and assist in the cooling of the shaft 5. Through this design, the heat is quickly transferred to the coolant through the highly thermally conductive inner surface of the shaft. The heated coolant then flows out of the shaft through the rotary joint, is cooled by the liquid cooler 3, and flows back. This cycle repeats continuously, achieving continuous cooling of the motor shaft, effectively reducing the shaft temperature, preventing the motor performance from deteriorating and the shaft material from thermal deformation due to excessive temperature, and improving the reliability and service life of the motor.

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An EVO drive motor shaft, characterized in that, include: Mounting plate, shaft; A liquid tank is fixedly connected to the top of a mounting plate. A liquid cooling radiator is installed on the top of the liquid tank. A return pipe is installed on the top of the liquid cooling radiator. A first flow structure is installed at the top of the return pipe. The first flow structure includes a rotating ring and a flow ring. The rotating ring is located on the inner surface of the flow ring. A conveying assembly is installed on the top of the mounting plate. A conveying pipe is installed at the outlet of the conveying assembly. A second flow structure is installed at the other end of the conveying pipe. Multiple reinforcing rings are installed at corresponding positions on the outer surface of the shaft. One of the reinforcing rings has an injection port and a reflux hole on its outer surface. Two connecting pipes with fixing heads are installed on the outer surface of one of the reinforcing rings. The other end of each of the two fixing heads is fixedly connected to a connecting pipe. Both ends of the shaft have through liquid flow channels. Both ends of the shaft are threaded with sealing plugs. A partition block is installed inside the liquid flow channel.

2. The EVO drive motor shaft according to claim 1, characterized in that, The delivery assembly includes a protective shell, a straw, and a miniature delivery component. The protective shell is used to mount the miniature delivery component that provides delivery force.

3. The EVO drive motor shaft according to claim 1, characterized in that, Both the first and second flow structures have an installation component installed at one end, and a channel for liquid flow is provided between the rotating ring and the flow ring.

4. The EVO drive motor shaft according to claim 3, characterized in that, The mounting assembly includes a fixing plate and a fixing hole, wherein the fixing hole is formed on the fixing plate.

5. The EVO drive motor shaft according to claim 1, characterized in that, The liquid-cooled radiator includes heat dissipation fins, a heat dissipation base, and a fan. The heat dissipation base is used to fix the heat dissipation fins.

6. The EVO drive motor shaft according to claim 1, characterized in that, Both the injection port and the reflux hole penetrate the reinforcing ring and communicate with the liquid flow channel. The outer surface of the reinforcing ring is a polygonal carbon fiber structure.