Liquid-cooled motor structure with vibration suppression

Abstract

Based on the liquid shaking energy dissipation principle, the liquid cooling motor structure comprises an oil inlet pipe, a flow dispersing pipe, an oil outlet pipe and a plurality of vault tile kettles, each vault tile kettle is in a tile shape, the length of each vault tile kettle is equal to that of the outer surface of a stator in the axial direction of a motor, and the width of each vault tile kettle is 1 / 12-1 / 8 of that of the outer surface of the cross section of the stator. The inner radius is matched with the radius of the outer surface of the stator, and the stator is fixed on the outer surface of the stator and tightly attached to the outer surface of the stator; the plurality of vault tile kettles are uniformly distributed on the outer surface of the stator, so that sufficient liquid cooling and vibration reduction of the motor are realized. The ports of the oil inlet pipe and the oil outlet pipe are arranged at the positions where oil can flow out smoothly at the height of 50%, so that the oil capacity is maintained at 50%; by setting the positions and shapes of the oil inlet pipe and the diffuser pipe, the surface area of oil or the contact area with the outer surface of the motor stator is increased, so that the efficient heat dissipation is realized, the vibration reduction effect is remarkably improved, and the service lives of the motor and related parts are prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of motor cooling and vibration reduction, and in particular to a liquid-cooled motor structure with vibration suppression, which realizes efficient cooling and vibration reduction. Background Art

[0002] In industry and daily life, motors are widely used in various mechanical equipment as an important power source. During the operation of the motor, a large amount of heat will be generated due to the passage of current and the conversion of mechanical energy. If this heat cannot be effectively controlled and dissipated, the internal temperature of the motor will rise, thereby affecting the performance, efficiency and life of the motor. Therefore, the heat dissipation of the motor has always been a key issue in motor design and maintenance. Traditional motor heat dissipation methods mainly include air cooling and liquid cooling. Among them, the liquid cooling system is widely used in high-performance motors and precision equipment due to its advantages such as high heat dissipation efficiency and uniform cooling. However, the traditional liquid cooling system has certain limitations in vibration reduction.

[0003] Motor vibration is a common problem in motor operation. It is caused by various reasons, including rotor imbalance, poor shaft alignment, mechanical looseness, magnetic imbalance, and external factors. These vibrations will not only reduce the performance and efficiency of the motor and shorten its service life, but may also cause noise pollution and equipment damage. Traditional vibration reduction methods such as hydraulic vibration reduction, pneumatic vibration reduction, and electromagnetic vibration reduction often require additional structures, increase costs, and are not flexible and relatively fixed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a liquid-cooled motor structure with vibration suppression, which can effectively dissipate heat and achieve good vibration reduction effects.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: A liquid-cooled motor structure with vibration suppression is based on the principle of liquid sloshing energy dissipation, and includes an oil inlet pipe, a diffuser pipe, an oil outlet pipe and a dome tile pot. The dome tile pot is multiple, and each is shaped like a tile. Its length along the motor axis is the same as the outer surface of the stator, and its width is 1 / 12 to 1 / 8 of the outer surface of the stator cross section. Its inner radius matches the radius of the stator outer surface. It is fixed to the outer surface of the stator and fits tightly to the outer surface of the stator. Multiple dome tile pots are evenly distributed on the outer surface of the stator to achieve sufficient liquid cooling and vibration reduction of the motor.

[0006] The ports of the oil inlet pipe and the oil outlet pipe are arranged at positions to ensure that the oil can flow out smoothly at a height of 50%, thereby ensuring that the oil capacity is maintained at 50%; the oil inlet pipe of the arch pot is connected to an external oil supply structure, and the oil enters the arch pot from the external oil supply structure through the oil inlet pipe, flows out of the arch pot through the oil outlet pipe, and flows back to the external oil supply structure to complete the oil circulation; the heat generated during the operation of the motor is conducted from the stator to the arch pot, and then the oil carries the heat out of the motor to complete the heat dissipation.

[0007] The external oil inlet pipe of the arch pot is cylindrical, and a diffuser is arranged inside. The diffuser extends from the oil inlet port to the inside of the arch pot, and the diffuser port is closed at a position where 90% of the length of the arch pot; the diffuser is provided with a plurality of diffuser holes near the inner wall of the arch pot, and by adjusting the flow rate and pressure, the oil is first sprayed onto the inner wall of the arch pot, and then flows down along the inner wall of the arch pot close to the stator side, so that the surface area of ​​the oil in the arch pot can be expanded when entering the arch pot, thereby enhancing the contact with the stator and thus enhancing the heat absorption and heat dissipation effects.

[0008] The vaulted pot, oil inlet pipe, diffuser pipe and oil outlet pipe are motor structures made of silicone.

[0009] In order to increase the adhesion of the oil, fluid mineral oil or high-temperature silicone oil is used, which has good thermal conductivity, adhesion and stability.

[0010] The oil inlet pipes of the dome pot in different positions have their own unique shape structures. By designing the shape structure of the oil inlet pipe and adjusting the flow rate, the oil can flow down along the inner wall of the dome pot close to the stator side, thereby enhancing the contact with the stator and thus enhancing heat absorption and heat dissipation, or the surface area of ​​the oil inside the dome pot can be expanded when entering the dome pot, thereby further enhancing the oil heat dissipation effect.

[0011] The working principle of the present invention is as follows: based on the principle of liquid sloshing energy dissipation, when the motor vibrates, the oil will slosh in the vaulted earthenware pot and form waves. This fluctuation is manifested as the ups and downs of the liquid surface. When the external force stops, the sloshing of the liquid will gradually decay, accompanied by the mechanical energy of the system being dissipated as heat and turbulent energy through the waves. The sloshing of the liquid is relatively smooth in the early stage, weakening the energy of the motor vibration. As the motor continues to vibrate or intensifies the vibration, the waves on the oil surface will gradually break, and the mechanical energy in the system will be dissipated into the surrounding environment through these broken waves. The breaking of waves will enhance the energy dissipation of the motor vibration and further reduce the vibration amplitude of the system. The stronger the wave breaking, the greater the energy dissipation.

[0012] The friction between the liquid and the container wall will also produce energy dissipation. As the liquid sloshes more, the friction becomes more significant, which is beneficial to the heat dissipation and vibration reduction of the motor.

[0013] The positive beneficial effects of the present invention are as follows: 1. The present invention utilizes the principle of liquid sloshing energy dissipation to achieve efficient heat dissipation of the motor while significantly improving the vibration reduction effect and effectively reducing the vibration oil level during motor operation, thereby extending the service life of the motor and its related components. The unique design of the dome pot in the present invention allows the oil to be evenly distributed, ensuring that the motor surface is fully cooled and vibration-reduced, thereby improving the cooling efficiency.

[0014] 2. The present invention designs the shape and structure of the oil inlet pipe and the diffuser pipe, adjusts the flow rate, enhances the contact with the stator and thus enhances heat absorption and heat dissipation, so that when the oil enters the arch pot, the surface area in the arch pot can be expanded, further enhancing the oil heat dissipation effect.

[0015] 3. The present invention arranges the ports of the oil inlet pipe and the oil outlet pipe at positions where the oil can flow out smoothly at a height of 50%, thereby ensuring that the oil capacity is maintained at 50%, so that the oil capacity can be maintained in an optimal vibration reduction state, thereby further enhancing the vibration reduction effect.

[0016] 4. The present invention has a simple structure, is easy to install and maintain, and the oil circulation system is reasonably designed to ensure continuous flow of oil and effective heat transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the description of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other corresponding drawings can be obtained based on these drawings without creative work. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious: Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic diagram of the side structure of the dome-shaped pot with a top liquid-cooled vibration-damping structure; Figure 3 It is a schematic diagram of the structure of the oil inlet end of the top liquid cooling vibration reduction structure arch pot; Figure 4 It is a schematic diagram of the structure of the oil outlet end of the top liquid cooling vibration reduction structure arch pot; Figure 5 This is one of the three-dimensional schematic diagrams of the top liquid-cooled vibration-damping structure vaulted pot; Figure 6 This is the second three-dimensional schematic diagram of the top liquid cooling vibration reduction structure vaulted pot; Figure 7 It is a structural schematic diagram of the oil inlet pipe and the corresponding diffuser pipe in the top liquid cooling vibration reduction structure vault pot; Figure 8 for Figure 7 Schematic diagram of the three-dimensional structure; Fig. 9 The schematic diagram of the structure of the dome-shaped pot with liquid cooling and vibration reduction structure on the left side is a top view; Fig.10 It is a structural schematic diagram of the oil inlet end of the dome-shaped tile pot with a liquid-cooled vibration reduction structure on the left; Fig.11 It is a structural schematic diagram of the oil outlet end of the dome-shaped tile pot with a liquid-cooled vibration-damping structure on the left; Fig.12 This is one of the three-dimensional schematic diagrams of the vaulted pot with liquid-cooled vibration-damping structure on the left; Fig.13 This is the second three-dimensional schematic diagram of the vaulted clay pot with liquid cooling and vibration reduction structure on the left.

[0018] In the accompanying drawings, 1 is a rotor, 2 is a stator, 3 is a casing, 4 is a top dome tile pot, 5 is a first oil inlet pipe at the top, 6 is a second oil inlet pipe at the top, 7 is a third oil inlet pipe at the top, 8 is a first oil outlet pipe at the top, 9 is a second oil outlet pipe at the top, 10 is a third oil outlet pipe at the top, 11 is a top diffuser, 12 is a diffuser hole, 13 is an upper wall of the top dome tile pot, 14 is an inner wall of the top dome tile pot, 15 is a left dome tile pot, 16 is a left diffuser, 17 is a first oil inlet pipe at the left, 18 is a second oil inlet pipe at the left, 19 is a third oil inlet pipe at the left, 20 is an upper wall of the left dome tile pot, 21 is an inner wall of the left dome tile pot, 22 is a first oil outlet pipe at the left, 23 is a second oil outlet pipe at the left, and 24 is a third oil outlet pipe at the left. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. 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.

[0020] Example: See Figure 1 , Figure 1 In the middle are the rotor and the rotating shaft 1, and the outer side of the stator 2 is surrounded by the liquid-cooled motor structure with vibration suppression of the present invention, that is, the evenly distributed dome pot. The heat generated by the motor is conducted from the stator 2 to the dome pot, and then the oil carries the heat out of the inside of the motor to complete the heat dissipation.

[0021] There are four arched tile pots, including the top arched tile pot, the left arched tile pot, the bottom arched tile pot and the right arched tile pot; each arched tile pot is shaped like a tile, with a length along the axial direction of the motor being the same as the outer surface of the stator, a width being 1 / 8 of the outer surface of the stator cross section, an inner radius matching the radius of the outer surface of the stator, fixed to the outer surface of the stator and fitting tightly with the outer surface of the stator; the four arched tile pots are evenly distributed on the outer surface of the stator to achieve sufficient liquid cooling and vibration reduction of the motor.

[0022] The ports of the oil inlet pipe and the oil outlet pipe are arranged at positions to ensure that the oil can flow out smoothly at a height of 50%, thereby ensuring that the oil capacity is maintained at 50%; the oil inlet pipe of the arch pot is connected to an external oil supply structure, and the oil enters the arch pot from the external oil supply structure through the oil inlet pipe, flows out of the arch pot through the oil outlet pipe, and flows back to the external oil supply structure to complete the oil circulation; the heat generated during the operation of the motor is conducted from the stator to the arch pot, and then the oil carries the heat out of the motor to complete the heat dissipation.

[0023] The external oil inlet pipe of the arch pot is cylindrical, and a diffuser is arranged inside. The diffuser extends from the oil inlet port to the inside of the arch pot, and the diffuser port is closed at a position of 90% of the length of the arch pot; the diffuser is provided with a plurality of diffuser holes near the upper wall and the inner wall of the arch pot, and by adjusting the flow rate and pressure, the oil is first sprayed onto the upper wall and the inner wall of the arch pot, and then flows down along the upper wall and the inner wall of the arch pot, so that the surface area of ​​the oil in the arch pot can be expanded when entering the arch pot, thereby enhancing the contact with the stator and thus enhancing the heat absorption and heat dissipation effects.

[0024] The vaulted pot, oil inlet pipe, diffuser pipe and oil outlet pipe are motor structures made of silicone.

[0025] In order to increase the adhesion of the oil, the oil adopts fluid mineral oil or high-temperature silicone oil, which has good thermal conductivity, adhesion and stability.

[0026] When the motor vibrates, the oil will slosh in the vaulted earthenware pot and form waves. This fluctuation appears as ups and downs on the surface of the liquid. When the external force stops, the sloshing of the liquid will gradually decay, and the mechanical energy of the system will be dissipated as heat and turbulent energy through the waves.

[0027] The sloshing of liquid is relatively smooth in the early stage, which weakens the energy of motor vibration. As the motor continues to vibrate or intensifies, the waves on the oil surface will gradually break, and the mechanical energy in the system will be dissipated into the surrounding environment through these broken waves. Wave breaking will enhance the energy dissipation of motor vibration and further reduce the vibration amplitude of the system. The stronger the wave breaking, the greater the energy dissipation.

[0028] The friction between the liquid and the container wall will also produce energy dissipation. As the liquid sloshes more, the friction becomes more significant, which is beneficial to the heat dissipation and vibration reduction of the motor.

[0029] Example 1, see Figure 2 to Figure 6 The liquid cooling vibration reduction structure arranged on the top of the stator is a top arch pot 4, which includes a top first oil inlet pipe 5, a top second oil inlet pipe 6, a top third oil inlet pipe 7, a top first oil outlet pipe 8, a top second oil outlet pipe 9, a top third oil outlet pipe 10, a top diffuser 11, diffuser holes 12, a top arch pot upper wall 13 and a top arch pot inner wall 14.

[0030] The three oil inlet pipes (the top first oil inlet pipe 5, the top second oil inlet pipe 6 and the top third oil inlet pipe 7) of the top arch pot 4 are arranged on the inner wall 14 of the top arch pot near the upper wall 13. The oil enters the three top diffusers respectively through the three oil inlet pipes. Taking the top first oil inlet pipe 5 as an example, the oil enters the top diffuser 11 through the oil inlet pipe. When the oil is sprayed into the top arch pot 4 from the diffuser hole 12 due to the pressure, the flow rate is controlled. At the same time, due to the adhesion of the oil, the oil will flow along the upper wall 13 and the inner wall 14, thereby increasing the surface area of ​​the oil, increasing heat absorption and heat dissipation, and further enhancing the cooling effect on the motor.

[0031] The three oil outlet pipes (top first oil outlet pipe 8, top second oil outlet pipe 9 and top third oil outlet pipe 10) of the top arch pot 4 are arranged in the middle of the top arch pot to ensure that the oil can flow out smoothly at a height of 50% and to ensure that the oil capacity is maintained at 50%.

[0032] The three oil inlet pipes of the top dome pot 4 are connected to an external oil supply structure (such as an oil tank). The oil enters the dome pot through the three oil inlet pipes from the external oil supply structure, flows out of the dome pot through the three oil outlet pipes, and flows back to the external oil supply structure to complete the oil circulation; the heat generated during the operation of the motor is conducted to the dome pot by the stator, and then the oil carries the heat out of the inside of the motor to complete the heat dissipation.

[0033] See also Figure 7 and Figure 8 Taking the top arch pot as an example: the oil inlet pipe 5 is cylindrical, and a diffuser 11 is arranged inside. The diffuser 11 extends from the oil inlet port to the inside of the arch pot, and the diffuser port is closed at a position where 90% of the length of the arch pot; a plurality of diffuser holes 12 are opened at the diffuser 11 near the upper wall and inner wall of the arch pot, which is shaped like a cylindrical shower. By adjusting the flow rate and pressure, the oil is first sprayed onto the upper wall and inner wall of the arch pot, and then flows down along the upper wall and inner wall of the arch pot close to the stator side, so that the oil can expand the surface area in the arch pot when entering the arch pot, thereby enhancing the contact with the stator and thus enhancing the heat absorption and heat dissipation effects.

[0034] Example 2, see Figures 9 to 13The liquid-cooled vibration-damping structure arranged on the left side of the stator is a left-side dome pot 15, which includes a left-side diffuser 16, a left-side first oil inlet pipe 17, a left-side second oil inlet pipe 18, a left-side third oil inlet pipe 19, a left-side dome pot upper wall 20, a left-side dome pot inner wall 21, a left-side first oil outlet pipe 22, a left-side second oil outlet pipe 23 and a left-side third oil outlet pipe 24.

[0035] Three oil inlet pipes (the first oil inlet pipe 17 on the left, the second oil inlet pipe 18 on the left and the third oil inlet pipe 19 on the left) are arranged at a position where the oil inlet end is close to the outer surface of the stator 2. The oil enters the three diffusers respectively through the three oil inlet pipes. Taking the first oil inlet pipe 17 on the left as an example, the oil enters the top diffuser 16 through the oil inlet pipe, and due to the pressure, the oil is sprayed from the diffuser holes into the left arch pot 15. By controlling the flow rate and due to the adhesion of the oil, the oil will flow along the upper wall and the inner wall, thereby increasing the contact area with the outer surface of the stator 2, increasing heat absorption and heat dissipation, and further enhancing the cooling effect on the motor.

[0036] Three oil outlet pipes (the first oil outlet pipe 22 on the left, the second oil outlet pipe 23 on the left and the third oil outlet pipe 24 on the left) are arranged in the middle of the left arch pot to ensure that the oil can flow out smoothly at a height of 50% and to ensure that the oil capacity is maintained at 50%.

[0037] The three oil inlet pipes of the left arch pot 15 are connected to an external oil supply structure (such as an oil tank). The oil enters the left arch pot through the three oil inlet pipes from the external oil supply structure, flows out of the arch pot through the three oil outlet pipes, and flows back to the external oil supply structure to complete the oil circulation; the heat generated during the operation of the motor is conducted to the arch pot by the stator, and then the oil carries the heat out of the motor to complete the heat dissipation.

[0038] Embodiment 3: The liquid-cooled vibration-damping structure provided at the bottom of the stator is a bottom dome-shaped pot, and its structure is the same as that of the top dome-shaped pot 4, and is symmetrically provided, so details thereof will not be repeated here.

[0039] Embodiment 4: The liquid-cooled vibration-damping structure arranged on the right side of the stator is a right-side arched tile pot, and its structure is the same as that of the left-side arched tile pot 15, and is symmetrically arranged, so it will not be described in detail here.

[0040] The above shows and describes the basic principles, main features and innovations of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] In the present invention, all terms related to directions such as "upper", "lower", "left side", "right side", "up", and "down" are intended to explain the structure and technical solutions of the present invention, but do not limit the structure and technical solutions of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid-cooled motor structure with vibration suppression, based on the principle of liquid sloshing energy dissipation, includes an oil inlet pipe, a diffuser pipe, an oil outlet pipe and a dome pot, characterized in that: There are multiple arched tile pots, each of which is shaped like a tile, with a length along the motor axis that is equal to the outer surface of the stator, a width that is 1 / 12 to 1 / 8 of the outer surface of the stator cross section, an inner radius that matches the radius of the stator outer surface, and is fixed to the outer surface of the stator and fits tightly to the outer surface of the stator; multiple arched tile pots are evenly distributed on the outer surface of the stator to achieve sufficient liquid cooling and vibration reduction of the motor.

2. The liquid-cooled motor structure with vibration suppression according to claim 1, characterized in that: The ports of the oil inlet pipe and the oil outlet pipe are arranged at positions to ensure that the oil can flow out smoothly at a height of 50%, thereby ensuring that the oil capacity is maintained at 50%; the oil inlet pipe of the arch pot is connected to an external oil supply structure, and the oil enters the arch pot from the external oil supply structure through the oil inlet pipe, flows out of the arch pot through the oil outlet pipe, and flows back to the external oil supply structure to complete the oil circulation; the heat generated during the operation of the motor is conducted from the stator to the arch pot, and then the oil carries the heat out of the motor to complete the heat dissipation.

3. The liquid-cooled motor structure with vibration suppression according to claim 2, characterized in that: The external oil inlet pipe of the arch pot is cylindrical, and a diffuser is arranged inside. The diffuser extends from the oil inlet port to the inside of the arch pot, and the diffuser port is closed at a position where 90% of the length of the arch pot; the diffuser is provided with a plurality of diffuser holes near the upper wall and the inner wall of the arch pot, and by adjusting the flow rate and pressure, the oil is first sprayed onto the upper wall and the inner wall of the arch pot, and then flows down along the upper wall and the inner wall of the arch pot, so that the surface area of ​​the oil in the arch pot can be expanded when entering the arch pot, thereby enhancing the contact with the stator and thus enhancing the heat absorption and heat dissipation effects.

4. The liquid-cooled motor structure with vibration suppression according to claim 3, characterized in that: The vaulted pot, oil inlet pipe, diffuser pipe and oil outlet pipe are motor structures made of silicone.

5. The liquid-cooled motor structure with vibration suppression according to claim 4, characterized in that: In order to increase the adhesion of the oil, the oil adopts fluid mineral oil or high-temperature silicone oil, which has good thermal conductivity, adhesion and stability.

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