Water-cooled motor hollow shaft

Abstract

The utility model relates to the technical field of water-cooled motor equipment, and discloses a water-cooled motor hollow shaft, which comprises a base, and a fixed part assembly and a rotor which are arranged on a central shaft in the base, an upper cover plate is arranged at the upper end of the base, a bearing seat is arranged in the center of the upper cover plate, and a water inlet is formed in one end of the upper cover plate; the interior of the base is a cavity, the water inlet penetrates into the base, a water outlet hole is formed in the side face of the base, and a flow guide plate is arranged at the end, close to the water outlet hole, of the base. Heat conduction assemblies are arranged at the two ends, close to the fixed part assembly and the rotor, of the base, each heat conduction assembly comprises a fixing plate, the heat conduction assemblies are fixedly connected with the inner wall of the base through the fixing plates, holes are formed in the fixing plates, heat conduction wires are connected to the holes in a winding mode, the two ends of the heat conduction wires extend to the fixing plates, and a heat dissipation plate is arranged on the outer surface of the base. While the cooling effect is improved, the overall structure is simplified, and the manufacturing difficulty and cost are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of water-cooled motor equipment, and in particular to a hollow shaft of a water-cooled motor. Background Art

[0002] In modern motor technology, water-cooled motors are widely used due to their effective heat dissipation performance, especially in high-power and high-load applications. The hollow shaft design of the water-cooled motor introduces cooling water into the hollow shaft of the motor, and uses the high heat capacity of water to take away the heat generated during the operation of the motor, thereby effectively reducing the motor temperature and ensuring the operating efficiency and life of the motor.

[0003] The existing water-cooled motor hollow shaft design mainly includes a hollow shaft with a cooling water channel. The cooling water enters the channel inside the hollow shaft from the inlet, flows along the channel and takes away the heat generated by the motor, and then is discharged from the outlet.

[0004] However, the existing water-cooled motor hollow shaft has some shortcomings. First, the cooling efficiency is low. The existing cooling settings are usually simple, mostly linear or single-loop, resulting in a limited contact area between the cooling water and the inner wall of the hollow shaft, which cannot fully remove the heat generated by the motor. Second, the cooling device with a complex structure is difficult and costly to manufacture, and increases the probability of equipment failure. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. The purpose of the utility model is to provide a water-cooled motor hollow shaft for solving the problems raised in the above-mentioned background technology.

[0006] In a first aspect, the present application provides a water-cooled motor hollow shaft, which adopts the following technical solution:

[0007] A water-cooled motor hollow shaft comprises a base and a stator assembly and a rotor on a central axis inside the base;

[0008] An upper cover plate is provided at the upper end of the base, a bearing seat is provided at the center of the upper cover plate, and a water inlet is provided at one end of the upper cover plate;

[0009] The interior of the base is arranged in a hollow cavity, the water inlet penetrates into the interior of the base, a water outlet is provided on the side of the base, and a guide plate is provided at one end of the base close to the water outlet;

[0010] The base is provided with heat conducting components at both ends close to the stator component and the rotor;

[0011] The outer surface of the base is provided with a heat dissipation plate.

[0012] By adopting the above technical solution; the interior of the base is designed as a cavity, providing a water flow channel to facilitate the circulation of the coolant inside the motor, the stator assembly and the rotor inside the base are installed on the central axis, the power is generated by the rotation of the rotor, and the electrical energy is converted into mechanical energy through the stator assembly; wherein, the water inlet is arranged at one end of the upper cover plate, penetrating into the internal cavity of the base, allowing the coolant to enter the base, and a water outlet is provided on the side of the base, and the coolant flows out from the water outlet after circulating inside the base, taking away the heat generated when the motor is running; a guide plate is arranged at one end of the base near the water outlet, and the guide plate guides the flow direction of the coolant to ensure that the coolant can effectively cover the stator assembly and the rotor. The base is provided with heat conducting components at both ends near the stator assembly and the rotor, and the heat conducting components promote the conduction of heat from the inside of the motor to the outside of the base, thereby improving the cooling efficiency.

[0013] Optionally, the heat-conducting component includes a fixing plate, the heat-conducting component is fixedly connected to the inner wall of the base through the fixing plate, the fixing plate is provided with a hole, a heat-conducting wire is wound around the hole, and both ends of the heat-conducting wire extend to the fixing plate.

[0014] By adopting the above technical solution, the coolant in the base is in full contact with the thermal wire through the thermal wire on the thermal conductive component, which further promotes heat conduction and ensures its stability when transferring heat.

[0015] Optionally, an embedding groove is provided on the fixing plate, and both ends of the heat conductive wire are embedded in the embedding groove of the fixing plate.

[0016] By adopting the above technical solution, the setting of the embedding groove can ensure good fixation between the heat-conducting wire and the fixing plate, and prevent the heat-conducting wire from moving in the coolant.

[0017] Optionally, the water inlet and the water outlet are respectively provided with filter screens.

[0018] By adopting the above technical solution, the filter can prevent larger particles or impurities from entering the motor, avoiding blocking of the coolant channel or damage to internal components.

[0019] Optionally, a wear-resistant coating is provided on the surface of the flow channel inside the base.

[0020] By adopting the above technical solution, the wear-resistant coating can effectively improve the wear resistance of the base flow channel, reduce the wear on the flow channel surface caused by the flow of coolant, and extend the service life of the base.

[0021] Optionally, the stator assembly includes a plurality of stator coils, the rotor includes a plurality of rotor magnets, and the stator coils and the rotor magnets are separated by an air gap.

[0022] By adopting the above technical solution, the electromagnetic field generated by the stator coil interacts with the magnetic field of the rotor magnet, and energy is transferred through the air gap, so that electrical energy is efficiently converted into mechanical energy.

[0023] Optionally, the upper cover plate and the base are formed by welding, and a sealant is applied at the connection between the upper cover plate and the base.

[0024] By adopting the above technical solution; the upper cover is the upper end cover of the base, which plays the role of closing the internal structure of the base and providing additional structural support; a sealant is applied at the joint between the upper cover and the base to ensure the sealing of the welded joint and prevent coolant leakage. The sealant is usually a high temperature and corrosion resistant material, which can remain effective for a long time in the working environment of the motor.

[0025] Optionally, the heat sink is provided with heat sink fins, and the guide plate is provided with guide grooves.

[0026] By adopting the above technical solution, the multiple heat dissipation fins arranged on the heat dissipation plate can improve the heat dissipation efficiency by increasing the heat dissipation area.

[0027] Optionally, the heat dissipation plate corresponds to the position of the heat conduction component.

[0028] By adopting the above technical solution, the heat-conducting components arranged at both ends of the base close to the stator component and the rotor are used to promote the conduction of heat from the inside of the motor to the outside of the base. The positions of the heat sink and the heat-conducting components correspond to each other to improve the overall heat dissipation effect.

[0029] Optionally, a one-way valve is provided on the water inlet and the water outlet respectively.

[0030] By adopting the above technical solution, the water inlet and the water outlet are respectively provided with a one-way valve to ensure that the coolant can only flow in the set direction to prevent backflow and loss.

[0031] To summarize, the present application includes at least one of the following beneficial technical effects: First, by arranging a heat-conducting component inside the base, the contact area between the cooling water and the inner wall of the hollow shaft is increased, thereby significantly improving the heat exchange efficiency so that the cooling water can fully cover and take away the heat generated during the operation of the motor. At the same time, in conjunction with the heat sink on the outside of the base, it is ensured that the internal heat can be efficiently transferred to the heat sink and dissipated, thereby maintaining a stable operating temperature of the motor. Secondly, the guide plate optimizes the flow path of the coolant, ensuring that the coolant can effectively cover the key components of the motor, take away more heat, and improve the cooling efficiency. While improving the cooling effect, the device simplifies the overall structure and reduces the manufacturing difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the cross-sectional structure of the base in the utility model.

[0033] Figure 2 It is a structural schematic diagram of the upper cover plate in the utility model.

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the heat conducting component in the utility model.

[0035] Figure numerals: 1, base; 110, upper cover plate; 111, bearing seat; 2, stator assembly; 3, rotor; 4, water inlet; 11, water outlet; 6, filter screen; 7, guide plate; 8, heat conduction assembly; 81, fixing plate; 810, embedding groove; 82, hole; 83, thermal wire; 9, heat sink. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0037] like Figures 1 to 3 In one embodiment of the water-cooled motor hollow shaft of the utility model shown, the water-cooled motor hollow shaft of the embodiment includes a base 1 and a stator assembly 2 and a rotor 3 on the central axis inside the base 1. The flow channel surface inside the base 1 is provided with a wear-resistant coating. The stator assembly 2 includes a plurality of stator coils, and the rotor 3 includes a plurality of rotor magnets. The stator coils and the rotor magnets are separated by an air gap. The electromagnetic field generated by the stator coils interacts with the magnetic field of the rotor magnets, and energy is transferred through the air gap, so that electrical energy is efficiently converted into mechanical energy. The working principle and implementation method of the stator assembly 2 and the rotor 3 belong to the well-known technology of those skilled in the art, and will not be described in detail here.

[0038] An upper cover plate 110 is provided at the upper end of the base 1, a bearing seat 111 is provided at the center of the upper cover plate 110, and a water inlet 4 is provided at one end of the upper cover plate 110;

[0039] The interior of the base 1 is arranged as a cavity, the water inlet 4 penetrates into the interior of the base 1, a water outlet 11 is provided on the side of the base 1, a check valve is provided on the water inlet 4 and the water outlet 11 respectively, a guide plate 7 is provided at one end of the base 1 close to the water outlet 11, and a guide groove is provided on the guide plate 7;

[0040] Heat conducting components 8 are provided at both ends of the base 1 close to the stator component 2 and the rotor 3;

[0041] A heat sink 9 is disposed on the outer surface of the base 1 , and the position of the heat sink 9 corresponds to that of the heat conducting component 8 .

[0042] Specifically, firstly, by arranging a heat-conducting component 8 inside the base 1, the contact area between the cooling water and the inner wall of the hollow shaft is increased, and the heat exchange efficiency is significantly improved so that the cooling water can fully cover and take away the heat generated during the operation of the motor. At the same time, in conjunction with the heat sink on the outside of the base 1, it is ensured that the internal heat can be efficiently transferred to the heat sink and dissipated, thereby maintaining a stable operating temperature of the motor. Secondly, the guide plate 7 optimizes the flow path of the coolant, ensuring that the coolant can effectively cover the key components of the motor, take away more heat, and improve the cooling efficiency. While improving the cooling effect, the device simplifies the overall structure and reduces the manufacturing difficulty and cost.

[0043] like Figure 3 As shown, the heat-conducting component 8 includes a fixing plate 81, and the heat-conducting component 8 is fixedly connected to the inner wall of the base 1 through the fixing plate 81. A hole 82 is opened on the fixing plate 81, and a heat-conducting wire 83 is wound around the hole 82. Both ends of the heat-conducting wire 83 extend to the fixing plate 81. An embedding groove 810 is opened on the fixing plate 81, and both ends of the heat-conducting wire 83 are embedded in the embedding groove 810 of the fixing plate 81.

[0044] Furthermore, the heat conducting component 8 is fixedly connected to the inner wall of the base 1 through the fixing plate 81, which ensures the stability and efficiency of the heat conduction path. The holes 82 on the fixing plate 81 in the heat conducting component 8 and the heat conducting wire 83 wound on the holes 82 increase the heat conduction area and the heat conduction path, significantly improving the heat conduction efficiency. In this way, the heat generated inside the motor can be transferred to the outside of the base 1 more quickly, and then dissipated through the heat sink 9 and the heat dissipation fins. The embedded groove 810 opened on the fixing plate 81 is used to fix the two ends of the heat conducting wire 83, ensuring that the heat conducting wire 83 will not move due to flow or vibration in the coolant, thereby ensuring the stability and reliability of the heat conducting component 8. The stability of the heat conducting wire 83 has a direct impact on the heat transfer and heat dissipation effect, effectively preventing the heat conducting wire 83 from loosening or falling off, and ensuring the long-term and effective operation of the heat dissipation system.

[0045] like Figure 2 As shown, the water inlet 4 and the water outlet 11 are respectively provided with a filter screen 6, the upper cover plate 110 and the base 1 are welded, the connection between the upper cover plate 110 and the base 1 is coated with sealant, and the heat sink 9 is provided with heat sink fins.

[0046] Furthermore, the filter 6 can prevent larger particles or impurities from entering the interior of the base 1, avoiding clogging of the coolant channel or damage to internal components; the upper cover 110 and the base 1 are formed by welding, ensuring the strength and stability of the overall structure, and being able to withstand the mechanical stress and thermal stress during the operation of the high-power motor. The welding process avoids the risk of loosening and leakage at the joints, and sealant is applied at the joints between the upper cover 110 and the base 1 to further enhance the sealing of the welding parts, prevent coolant leakage, and ensure the reliability and operational stability of the system; the heat dissipation fins arranged on the heat sink 9 significantly improve the heat dissipation efficiency by increasing the heat dissipation area and optimizing the air flow path; the use of the heat conductive component 8 and the heat dissipation fins enables the motor to maintain a low temperature even when running at high loads, thereby extending the service life of the equipment.

[0047] The implementation principle of the utility model is: by optimizing the cooling system and improving the structural design, the heat dissipation efficiency, structural stability and system reliability of the hollow shaft of the water-cooled motor are improved; the base 1 is used as a cavity, and the coolant is guided to circulate inside the motor through the optimized cooling channel. The coolant enters from the water inlet 4, flows along the internal cooling channel, takes away the heat generated during the operation of the motor, and is discharged from the water outlet 11. The guide groove on the guide plate 7 further optimizes the flow path of the coolant, ensuring that the coolant can effectively cover the stator assembly and the rotor, thereby improving the cooling effect;

[0048] Secondly, a plurality of heat dissipation fins are arranged on the heat dissipation plate 9, and the heat dissipation fins significantly improve the heat dissipation efficiency by increasing the heat dissipation area and optimizing the air flow path; the heat conduction component 8 is fixedly connected to the inner wall of the base 1 through the fixing plate 81, and the hole 82 on the fixing plate 81 is wound with a heat conduction wire 83, and the two ends of the heat conduction wire 83 are embedded in the embedding groove 810 of the fixing plate 81, so as to ensure the stability and efficiency of the heat conduction path, and the heat conduction component 8 quickly transfers the heat generated inside the motor to the heat dissipation plate 9, and quickly dissipates it through the heat dissipation fins;

[0049] Finally, the upper cover plate 110 and the base 1 are welded together to form a whole, thereby enhancing the strength and stability of the structure. Sealant is applied at the connection between the upper cover plate 110 and the base 1 to further enhance the sealing of the welding part, prevent coolant leakage, and ensure the reliability and operational stability of the system.

[0050] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A water-cooled motor hollow shaft, characterized in that: It comprises a base (1) and a stator assembly (2) and a rotor (3) on a central axis inside the base (1); An upper cover plate (110) is provided at the upper end of the base (1), a bearing seat (111) is provided at the center of the upper cover plate (110), and a water inlet (4) is provided at one end of the upper cover plate (110); The interior of the base (1) is arranged in a hollow cavity, the water inlet (4) penetrates into the interior of the base (1), a water outlet (11) is provided on the side of the base (1), and a guide plate (7) is provided at one end of the base (1) close to the water outlet (11); Heat conducting components (8) are provided at both ends of the base (1) close to the stator component (2) and the rotor (3); The outer surface of the base (1) is provided with a heat dissipation plate (9).

2. The water-cooled motor hollow shaft according to claim 1, characterized in that: The heat-conducting component (8) comprises a fixing plate (81), the heat-conducting component (8) is fixedly connected to the inner wall of the base (1) via the fixing plate (81), a hole (82) is provided on the fixing plate (81), a heat-conducting wire (83) is wound around the hole (82), and both ends of the heat-conducting wire (83) extend to the fixing plate (81).

3. The water-cooled motor hollow shaft according to claim 2, characterized in that: An embedding groove (810) is provided on the fixing plate (81), and two ends of the heat conductive wire (83) are embedded in the embedding groove (810) of the fixing plate (81).

4. The water-cooled motor hollow shaft according to claim 1, characterized in that: The water inlet (4) and the water outlet (11) are respectively provided with filter screens (6).

5. The water-cooled motor hollow shaft according to claim 1, characterized in that: The surface of the flow channel inside the base (1) is provided with a wear-resistant coating.

6. The water-cooled motor hollow shaft according to claim 1, characterized in that: The stator assembly (2) comprises a plurality of stator coils, and the rotor (3) comprises a plurality of rotor magnets. The stator coils and the rotor magnets are separated by an air gap.

7. The water-cooled motor hollow shaft according to claim 1, characterized in that: The upper cover plate (110) and the base (1) are welded together, and a sealant is applied at the connection between the upper cover plate (110) and the base (1).

8. The water-cooled motor hollow shaft according to claim 1, characterized in that: The heat dissipation plate (9) is provided with heat dissipation fins, and the guide plate (7) is provided with guide grooves.

9. The water-cooled motor hollow shaft according to claim 1, characterized in that: The heat dissipation plate (9) corresponds to the position of the heat conduction component (8).

10. The water-cooled motor hollow shaft according to claim 1, characterized in that: The water inlet (4) and the water outlet (11) are respectively provided with a one-way valve.

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