Efficient homogenizing mixing production device for new energy automobile insulation lubricating oil

Abstract

This application relates to the technical field of insulating lubricating oil production equipment, and more particularly to a high-efficiency homogeneous mixing production device for insulating lubricating oil used in new energy vehicles, comprising a pre-dispersion component, a mixing and degassing component, and a conveying component connected in sequence. The pre-dispersion component achieves preliminary dispersion and preheating of materials through a pre-disperser and a heat-conducting jacket. The mixing and degassing component is the core, and its interior is equipped with a degassing rotor assembly driven by a hollow rotating shaft. The degassing rotor assembly includes a dynamic vacuum chamber periodically connected to a vacuum system; the outer wall of the dynamic vacuum chamber is equipped with retractable wall-scraping stirring blades, and adaptive wall adhesion and vibration are achieved through pulsed magnetic force generated by an external electromagnetic coil and a permanent magnet on the stirring blades. This application integrates preheating, high-shear mixing, pulsed dynamic vacuum degassing, and filtration into an integrated sealing system, achieving synchronization of mixing and degassing in time and space, significantly improving the homogeneity, degassing efficiency, and insulation performance of the final product of the insulating lubricating oil.

Description

Technical Field

[0001] This invention relates to the field of insulating lubricating oil production equipment technology, and more specifically, to a high-efficiency homogeneous mixing production device for insulating lubricating oil used in new energy vehicles. Background Technology

[0002] The core high-voltage components of new energy vehicles, such as the electric drive system, high-voltage electronic control system, and power battery liquid cooling system, place stringent requirements on the performance of insulating lubricating oils. These oils not only need to possess high breakdown voltage and low volume resistivity for electrical insulation, but also must maintain good lubricity, thermal conductivity, and chemical stability. The performance of insulating lubricating oils directly depends on the degree of homogeneity of the mixture of base oil, insulating reinforcing agents, anti-wear additives, thermally conductive fillers, and other components.

[0003] Currently, high-shear homogenizers, three-roll mills, or conventional stirred tanks are commonly used for the mixing and production of insulating lubricating oils. Among them, the high-shear homogenizer generates shear force through the high-speed relative motion of the rotor and stator, breaking up agglomerated particles in the raw materials; the three-roll mill relies on the squeezing and shearing action between the rollers to achieve fine mixing of paste-like materials; and the conventional stirred tank completes the initial fusion of multiple components through paddle stirring.

[0004] Regarding the aforementioned existing technologies, current mixing production equipment and processes mostly operate under normal pressure. During high-speed stirring or shearing, air is easily entrained, forming numerous tiny bubbles. Although some equipment is equipped with simple degassing modules, the degassing time is short and the vacuum level is insufficient, failing to completely remove dissolved air and entrained bubbles from the oil. These residual bubbles significantly reduce the breakdown voltage of insulating lubricating oil, becoming a potential electrical breakdown hazard during high-voltage system operation, and in severe cases, even causing short-circuit faults. Simultaneously, bubbles can cause cavitation during oil circulation, damaging equipment pipelines and components. Furthermore, the mixing and degassing processes in existing equipment are independent, resulting in a lengthy production process and low production efficiency, making it difficult to meet the large-scale mass production needs of insulating lubricating oil for new energy vehicles. Summary of the Invention

[0005] The technical problem to be solved by this invention is that a large number of bubbles are generated during the mixing process of insulating lubricating oil, which affects the performance of the insulating lubricating oil. In view of the above-mentioned defects of the prior art, this invention provides a high-efficiency uniform mixing production device for insulating lubricating oil for new energy vehicles.

[0006] The technical solution adopted by this invention to solve its technical problem is: A high-efficiency homogeneous mixing production device for insulating lubricating oil for new energy vehicles includes a pre-dispersion component, a mixing and degassing component, and a conveying component; The pre-dispersion component is used to initially disperse and preheat the raw materials, break up large agglomerates, and control the initial stability of the polymer system. The mixing and degassing component is used to perform vacuum degassing on the lubricating oil while homogenizing it, eliminating newly generated bubbles and existing bubbles in the system during the mixing process. The conveying assembly is used to filter and dispense the insulating lubricating oil that has been mixed and degassed; the pre-dispersion assembly, the mixing and degassing assembly, and the conveying assembly are connected in sequence through a sealed pipeline.

[0007] By adopting the above technical solution, multiple independent processes such as dispersion, preheating, mixing, degassing, filtration, and packaging are integrated into a continuous and automated device, which significantly reduces material transfer, waiting time, and human intervention, and improves production efficiency. The preliminary dispersion and preheating processes of the pre-dispersion component create good initial conditions for subsequent main mixing. Mixing and degassing are carried out simultaneously. Vacuum degassing is directly used during the dynamic mixing process, which can immediately break newly generated and encapsulated bubbles, significantly improving the uniformity, density, and insulation performance of the product. The entire process is connected by sealed pipelines, which prevents the intrusion of external impurities and the loss of internal volatile components, ensuring the purity of the product and the cleanliness and safety of the production environment.

[0008] Preferably, the mixing and degassing assembly includes a mixing and degassing tank, a degassing rotor assembly, and a vacuum component; the mixing and degassing tank is a top-sealed tank, the top of the mixing and degassing tank is provided with a feed inlet, a vacuum port, and a drive shaft sealing interface, and the bottom of the mixing and degassing tank is provided with a discharge port; The vacuum component is connected to the interior of the mixing and degassing tank through the vacuum port, and the vacuum component is used to establish and maintain a vacuum environment inside the mixing and degassing tank. The degassing rotor assembly includes a hollow rotating shaft, a vacuum distribution chamber, a dynamic vacuum chamber, and retractable wall-scraping stirring blades. The hollow rotating shaft is driven to rotate by a drive motor at the top of the mixing and degassing tank. The hollow rotating shaft is coaxially arranged with the mixing and degassing tank and rotatably connected inside the mixing and degassing tank. The vacuum distribution chamber is sleeved on the upper part of the hollow rotating shaft and is fixedly connected to the inner wall of the mixing and degassing tank. The contact surface between the lower part of the vacuum distribution chamber and the hollow rotating shaft is sealed with a sealing element, and the upper part of the vacuum distribution chamber communicates with the interior of the mixing and degassing tank. The dynamic vacuum chamber is a cylindrical cavity, which is fixedly connected to the lower part of the hollow rotating shaft and rotates synchronously with the hollow rotating shaft; the inner wall and bottom of the dynamic vacuum chamber are porous structures, and the dynamic vacuum chamber is periodically or continuously connected to the vacuum distribution cavity through the axial channel inside the hollow rotating shaft. The stirring blades are arranged in multiple sets along the circumference of the dynamic vacuum chamber. One end of the stirring blade is connected to the outer wall of the dynamic vacuum chamber by a hinge or elastic element. The outer shape of the stirring blade matches the internal curvature of the mixing and degassing tank.

[0009] By adopting the above technical solution, the drive motor drives the central control shaft to rotate, and the hollow shaft drives the dynamic vacuum chamber and stirring blades to rotate together. The vacuum component works at the top of the mixing and degassing tank to form a negative pressure. The negative pressure passes through the sealed interface between the vacuum distribution chamber and the hollow shaft, enters the internal axial channel of the central shaft, and then reaches the interior of the dynamic vacuum chamber that rotates synchronously with the hollow shaft. Finally, the vacuum forms a dynamic local high vacuum region inside the mixing and rotating lubricating oil through the porous structure of the side wall and bottom of the dynamic chamber. The rotating dynamic vacuum chamber serves as the core carrier. The stirring blades on the outer wall of the dynamic vacuum chamber mix the lubricating oil under the action of centrifugal force, fluid resistance, and their own elasticity. This extends the vacuum source from the static top space to the dynamic rotating stirring core, allowing the vacuum negative pressure to directly act on the area with the most intense mixing shear. At the same time, it simplifies the internal structure of the tank and avoids the sealing and interference problems caused by introducing additional vacuum pipes.

[0010] Preferably, at least one radial through hole is provided along the axial direction on the shaft segment corresponding to the vacuum distribution cavity of the hollow rotating shaft.

[0011] By adopting the above technical solution, when the hollow shaft rotates to align the radial through-hole with the internal cavity of the vacuum distribution chamber, the dynamic vacuum chamber connects to the vacuum system through the axial channel and radial through-hole within the hollow shaft, achieving vacuuming. When the shaft rotates away from the aligned position, the passage is cut off by the rotating seal. This structure allows the dynamic vacuum chamber to periodically and intermittently connect to the vacuum system during rotation, forming pulsed suction, which helps to break up and remove stubborn air bubbles.

[0012] Preferably, a stator screen barrel is coaxially fixedly installed inside the mixing and degassing tank. The stator screen barrel is provided with sieve holes, and there is a shear gap between the stator screen barrel and the stirring blade.

[0013] By adopting the above technical solution, when the stirring blade drives the lubricating oil to rotate at high speed, the fluid is forced to pass through the sieve holes on the stator screen barrel. Within the narrow gaps of the sieve holes, it receives extremely high shear and impact forces, which can break up tiny agglomerated particles. At the same time, the porous wall of the dynamic vacuum chamber is located in a high-shear region, which allows the broken material that may release new bubbles to be immediately degassed under vacuum, greatly improving the insulation strength and physical stability of the final product.

[0014] Preferably, the pre-dispersion assembly includes a pre-dispersion tank, a pre-dispersion device, and a thermally conductive jacket; the pre-dispersion device is disposed at the bottom of the pre-dispersion tank, and the pre-dispersion device includes a driving gear and a driven gear, which mesh with each other and compress the polymer; the thermally conductive jacket is wrapped around the outer wall of the pre-dispersion tank, and the thermally conductive jacket is filled with a thermally conductive medium, and the temperature of the thermally conductive jacket can be controlled by a temperature control system.

[0015] By adopting the above technical solution, the pre-disperser can effectively disperse the initial large agglomerates in the raw materials, the heat-conducting jacket can avoid local overheating, and the preheating operation reduces the viscosity of the lubricating oil, which not only reduces the load on the pre-disperser itself, but also allows the material to enter the mixing and degassing tank in the best rheological state, which significantly improves the mixing efficiency and vacuum degassing speed in the mixing and degassing tank.

[0016] Preferably, the conveying assembly includes a conical buffer chamber, a filter element, and a discharge valve; the filter element is used to filter and intercept impurities in the mixed lubricating oil, the filter element is fixed inside the conical buffer chamber, and the discharge valve is located at the discharge port of the conical buffer chamber.

[0017] By adopting the above technical solution, the mixed and degassed lubricating oil enters the conical buffer chamber. The structure of the conical buffer chamber facilitates the convergence of material towards the central filter element. Impurities are filtered through the internal double-layer composite filter screen, and finally, the discharge valve controls the dispensing. The conical structure facilitates material flow and reduces residue, while the double-layer filter screen improves filtration accuracy and dirt-holding capacity, ensuring the cleanliness of the discharged material and the accuracy of dispensing, thus meeting the high purity requirements of insulating lubricating oil.

[0018] Preferably, the porous structure of the sidewalls and bottom of the dynamic vacuum cavity is a gradient pore size structure, wherein the pore size of the porous structure gradually increases radially outward; the dynamic vacuum cavity comprises at least two layers.

[0019] By adopting the above technical solution, different vacuum suction characteristics are formed in different aperture regions of the dynamic vacuum chamber wall when the chamber rotates. Small apertures result in high vacuum but low flow rates, suitable for suctioning small, stubborn bubbles; large apertures result in high flow rates, suitable for quickly removing large bubbles. The multi-layered chamber can be understood as multiple coaxially nested gradient porous cylinders, which greatly increases the effective surface area for vacuum action and allows the lubricating oil to undergo vacuum treatment of varying intensities and methods as it flows from the inner layer to the outer layer.

[0020] Preferably, a permanent magnet block is fixedly embedded on the inner side of the free end of the stirring blade, and several electromagnetic coils are wound around the outer wall of the mixing and degassing tank at positions corresponding to the movement trajectory of the stirring blade.

[0021] By employing the above technical solution, when the stirring blade rotates to the position corresponding to a certain electromagnetic coil, the coil can be briefly energized through an external control circuit, causing it to generate a magnetic field force that repels the permanent magnet. This applies an additional pulsed clamping force towards the tank wall to the stirring blade. This purely mechanical-magnetic linkage structure can dynamically compensate for changes in centrifugal force caused by wear or material resistance of the stirring blade, ensuring that it always effectively adheres to the wall. Furthermore, through periodic pulsed magnetic vibration, it can help shake off viscous materials adhering to the tank wall and stirring blade, maintaining heat transfer and mixing efficiency.

[0022] The beneficial effects of this invention are as follows: 1. By integrating multiple independent processes such as dispersion, preheating, mixing, degassing, filtration, and packaging into a continuous and automated device, material transfer, waiting time, and human intervention are significantly reduced, thereby improving production efficiency. The preliminary dispersion and preheating processes of the pre-dispersion component create favorable initial conditions for subsequent main mixing. Mixing and degassing are carried out simultaneously. Vacuum degassing is directly utilized during the dynamic mixing process, which can immediately break newly generated and encapsulated bubbles, significantly improving the uniformity, density, and insulation performance of the product. The entire process is connected by sealed pipelines, preventing the intrusion of external impurities and the loss of internal volatile components, ensuring the purity of the product and the cleanliness and safety of the production environment. 2. The drive motor drives the central control shaft to rotate, and the hollow shaft drives the dynamic vacuum chamber and stirring blades to rotate together. The vacuum component works at the top of the mixing and degassing tank to create negative pressure. The negative pressure passes through the sealed interface between the vacuum distribution chamber and the hollow shaft, enters the internal axial channel of the central shaft, and then reaches the interior of the dynamic vacuum chamber that rotates synchronously with the hollow shaft. Finally, the vacuum passes through the porous structure of the side walls and bottom of the dynamic chamber, forming a dynamic local high vacuum region inside the mixing and rotating lubricating oil. The rotating dynamic vacuum chamber serves as the core carrier. The stirring blades on the outer wall of the dynamic vacuum chamber mix the lubricating oil under the action of centrifugal force, fluid resistance, and their own elasticity. This extends the vacuum source from the static top space to the dynamic rotating stirring core, allowing the vacuum negative pressure to directly act on the area with the most intense mixing shear. At the same time, it simplifies the internal structure of the tank and avoids the sealing and interference problems caused by introducing additional vacuum pipes. 3. When the hollow shaft rotates to align the radial through-hole with the internal cavity of the vacuum distribution chamber, the dynamic vacuum chamber connects to the vacuum system through the axial channel and radial through-hole within the hollow shaft, achieving vacuuming. When the shaft rotates away from the aligned position, the passage is cut off by the rotating seal. This structure allows the dynamic vacuum chamber to periodically and intermittently connect to the vacuum system during rotation, forming pulsed suction, which helps to break up and remove stubborn air bubbles. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a schematic diagram of the overall structure of the hybrid production apparatus according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the structure of the mixing and degassing component in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Pre-dispersion assembly; 11. Pre-dispersion tank; 12. Pre-disperser; 121. Drive gear; 122. Driven gear; 13. Thermally conductive jacket; 2. Mixing and degassing assembly; 21. Mixing and degassing tank; 22. Degassing rotor assembly; 221. Hollow rotating shaft; 222. Vacuum distribution chamber; 223. Dynamic vacuum chamber; 224. Stirring blade; 23. Stator screen barrel; 24. Vacuum component; 3. Conveying assembly; 31. Conical buffer chamber; 32. Filter component; 33. Discharge valve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0027] This application provides an efficient homogeneous mixing production apparatus for insulating lubricating oil used in new energy vehicles, as shown in the embodiments below. Figure 1 and Figure 2 As shown, a high-efficiency homogeneous mixing production device for insulating lubricating oil for new energy vehicles includes a pre-dispersion component 1, a mixing and degassing component 2, and a conveying component 3 connected in sequence through sealed pipes.

[0028] The pre-dispersion component 1 is used for preliminary dispersion and preheating of raw materials, breaking up large agglomerates and controlling the initial stability of the polymer system. The pre-dispersion component 1 includes a pre-dispersion tank 11, a pre-dispersant 12, and a heat-conducting jacket 13. The pre-dispersion tank 11 is a vertical cylindrical container with a sealed inlet and temperature probe interface at the top, and an arc-shaped outlet structure at the bottom. The pre-dispersioner 12 is located at the bottom of the pre-dispersion tank 11 and is connected to the tank via a mechanical seal and driven by an external motor. As an optional embodiment, the pre-dispersioner 12 can be configured as a dual-shaft counter-rotating gear disperser. The pre-dispersioner 12 includes a driving gear 121 and a driven gear 122, which are driven by a driving mechanism to rotate counter-rotate, generating strong tearing and compressive forces in the meshing area to effectively break up the initial agglomerates in the solid raw materials. The driving mechanism can be a drive motor. The heat-conducting jacket 13 is a jacket structure covering the outer wall of the pre-dispersion tank 11. The interior of the heat-conducting jacket 13 is filled with a low-boiling-point heat-conducting medium and is circulated and heated by an external temperature control system. As an optional embodiment, a spiral guide plate is provided inside the jacket to achieve uniform and gradual preheating of the material, avoiding local overheating and thus reducing the overall viscosity of the material. This achieves precise preheating of the material, reduces viscosity, and facilitates subsequent degassing.

[0029] The pre-disperser 12 can effectively break up the initial large agglomerates in the raw materials, and the heat-conducting jacket 13 can prevent local overheating. At the same time, the preheating operation reduces the viscosity of the lubricating oil, which not only reduces the load on the pre-disperser 12 itself, but also allows the material to enter the mixing and degassing tank 21 in the best rheological state, which significantly improves the mixing efficiency and vacuum degassing speed in the mixing and degassing tank 21.

[0030] The mixing and degassing assembly 2 is used to perform vacuum degassing of the lubricating oil while homogenizing it, eliminating newly generated bubbles and existing bubbles in the system during the mixing process. The mixing and degassing assembly 2 includes a mixing and degassing tank 21, a degassing rotor assembly 22, a stator mesh tank 23, and a vacuum component 24. The mixing and degassing tank 21 is a top-sealed tank with an inlet, a vacuum port, and a drive shaft sealing interface at the top, and an outlet at the bottom. As an optional embodiment, the mixing and degassing tank 21 can be equipped with a cooling jacket to control the process temperature. The vacuum component 24 communicates with the interior of the mixing and degassing tank 21 through a vacuum port, and is used to establish and maintain a vacuum environment within the mixing and degassing tank 21.

[0031] The degassing rotor assembly 22 includes a hollow rotating shaft 221, a vacuum distribution chamber 222, a dynamic vacuum chamber 223, and a retractable, scraping stirring blade 224. The hollow rotating shaft 221 is driven to rotate by a drive motor at the top of the mixing and degassing tank 21. The vacuum distribution chamber 222 is fixedly sleeved on the upper part of the hollow rotating shaft 221, and the contact surface between the lower part of the vacuum distribution chamber 222 and the hollow rotating shaft 221 is sealed with a seal. The upper part of the vacuum distribution chamber 222 communicates with the interior of the mixing and degassing tank 21. The dynamic vacuum chamber 223 is a cylindrical cavity, fixedly connected to the lower part of the hollow rotating shaft 221, and rotates synchronously with the hollow rotating shaft 221. The sidewalls and bottom of the dynamic vacuum chamber 223 have a porous structure, and the dynamic vacuum chamber 223 communicates periodically or continuously with the vacuum distribution chamber through an axial channel inside the hollow rotating shaft 221.

[0032] At least one radial through hole is provided on the shaft end corresponding to the vacuum distribution cavity 222 along the axial direction of the hollow rotating shaft 221. When the hollow rotating shaft 221 rotates to align the radial through hole with the internal cavity of the vacuum distribution cavity 222, the dynamic vacuum cavity 223 is connected to the vacuum component 24 through the axial channel and radial through hole in the hollow rotating shaft 221 to achieve vacuum degassing; when the radial through hole rotates away from the aligned position, the passage is cut off by the rotating seal; so that the dynamic vacuum cavity 223 is periodically and intermittently connected to the vacuum system during the rotation process, forming pulsed suction, which helps to break up and remove stubborn air bubbles.

[0033] The porous structure on the sidewalls and bottom of the dynamic vacuum chamber 223 is a gradient pore structure, with the pore size gradually increasing radially outwards. When the dynamic vacuum chamber 223 rotates, different pore size regions on its wall exhibit different vacuum suction characteristics. Smaller pore sizes result in higher vacuum levels but lower flow rates, suitable for suctioning fine, stubborn bubbles; larger pore sizes result in higher flow rates, suitable for rapidly removing large bubbles. The multi-layered chamber can be understood as multiple coaxially nested gradient porous cylinders, which greatly increases the effective surface area for vacuum action and allows the lubricating oil to undergo vacuum treatment of varying intensities and methods as it flows from the inner to the outer layers.

[0034] The porous structure of the dynamic vacuum chamber 223 is not a typical open-pore structure, but rather a multi-layer composite structure. Specifically, it includes an inner layer of dense, single-layer skeleton layer with micron-sized flow-guiding pores, and an outer layer of metal fiber sintered felt layer with an average pore size larger than the flow-guiding layer. This structure forms a gradient pore size, effectively preventing lubricating oil mixtures from entering the dynamic vacuum chamber 223 during time-phase vacuum pumping. The metal fiber sintered felt layer has high porosity and a tortuous path, forming a surface tension barrier on the liquid phase, allowing only gas molecules to pass through, thus achieving the functions of liquid phase isolation and gas phase pumping.

[0035] The dynamic vacuum chamber 223 comprises at least two layers; as an optional embodiment, the dynamic vacuum chamber 223 includes an inner layer and an outer layer. The inner layer is a dense support skeleton layer with uniformly distributed micron-sized flow guide holes on its surface; the outer layer is a metal fiber sintered felt layer covering the support skeleton layer, with an average pore diameter larger than that of the flow guide holes. This structure, while ensuring the structural strength of the chamber, creates a suction gradient that allows materials to gradually diffuse from the inside of the high vacuum chamber to the outside, which can efficiently suction air bubbles and prevent high-viscosity materials from clogging the micropores. The vacuum component 24 performs vacuum degassing in the mixing degassing tank 21 in two ways: first, the vacuum component 24 directly performs vacuum degassing on the lubricating oil mixture in the upper middle part of the mixing degassing tank 21; second, when the hollow rotating shaft 221 rotates to connect with the radial through-hole vacuum distribution chamber 222, the vacuum component 24 can intermittently degas the lubricating oil mixture in the lower middle stirring position of the mixing degassing tank 21 through the hollow rotating shaft 221. The dynamic vacuum chamber 223 and the stirring blade 224 are integrated into the rotating structure to achieve synchronization of mixing and degassing in time and space, and the degassing efficiency is significantly improved through the gradient porous structure and pulsed suction mechanism.

[0036] The drive motor drives the central control shaft to rotate, and the hollow shaft 221 drives the dynamic vacuum chamber 223 and the stirring blades 224 to rotate together. The vacuum component 24 works at the top of the mixing and degassing tank 21 to form a negative pressure. The negative pressure passes through the sealed interface between the vacuum distribution chamber 222 and the hollow shaft 221, enters the internal axial channel of the central shaft, and then reaches the interior of the dynamic vacuum chamber 223, which rotates synchronously with the hollow shaft 221. Finally, the vacuum forms a dynamic local high vacuum region inside the mixing and rotating lubricating oil through the porous structure of the side wall and bottom of the dynamic chamber. The rotating dynamic vacuum chamber 223 serves as the core carrier. The stirring blades 224 on the outer wall of the dynamic vacuum chamber 223 mix the lubricating oil under the action of rotational centrifugal force, fluid resistance, and their own elasticity. The vacuum source is extended from the static top space to the dynamic rotating stirring core, so that the vacuum negative pressure can directly act on the area with the most intense mixing shear. At the same time, it simplifies the internal structure of the tank and avoids the sealing and interference problems caused by the introduction of additional vacuum pipes.

[0037] Multiple sets of stirring blades 224 are arranged circumferentially along the dynamic vacuum chamber 223. One end of each stirring blade 224 is connected to the outer wall of the dynamic vacuum chamber 223 via a hinge or elastic element. The outer shape of the stirring blade 224 matches the internal curvature of the mixing and degassing tank 21. A permanent magnet block is fixedly embedded on the inner side of the free end of the stirring blade 224. Several electromagnetic coils are wound around the outer wall of the mixing and degassing tank 21 at positions corresponding to the movement trajectory of the stirring blade 224. When the stirring blade 224 rotates to the position corresponding to a certain electromagnetic coil, the coil can be briefly energized by an external control circuit, causing it to generate a magnetic field force that repels the permanent magnet, thereby applying an additional pulsed clamping force towards the tank wall to the stirring blade 224. This purely mechanical and magnetic linkage structure can dynamically compensate for changes in centrifugal force caused by wear or material resistance of the stirring blade 224, ensuring that it always effectively adheres to the wall. It can also assist in shaking off viscous materials adhering to the tank wall and stirring blade 224 through periodic pulsed magnetic vibration.

[0038] The stator screen barrel 23 is coaxially fixed inside the mixing and degassing tank 21. The stator screen barrel 23 is equipped with precision sieve holes. A narrow and uniform shear gap is maintained between the stator screen barrel 23 and the stirring blades 224. When the stirring blades 224 drive the material to rotate at high speed, the material fluid is forced through the shear gap and the sieve holes on the stator screen barrel 23, experiencing strong shearing and compression. Simultaneously, the dynamic vacuum chamber 223 near the shear zone can instantly remove newly generated or released microbubbles. When the stirring blades 224 drive the lubricating oil to rotate at high speed, the fluid is forced through the sieve holes on the stator screen barrel 23, receiving extremely high shear and impact forces within the narrow sieve gap, which can break up tiny agglomerated particles. At the same time, the porous wall of the dynamic vacuum chamber 223 is located in the high-shear zone, allowing the broken material, which may release new bubbles, to immediately undergo degassing under vacuum, greatly improving the insulation strength and physical stability of the final product.

[0039] The conveying assembly 3 is used for the final filtration and controlled dispensing of the mixed and degassed insulating lubricating oil. The conveying assembly 3 includes a conical buffer chamber 31, a filter element 32, and a discharge valve. The conical buffer chamber 31 receives material from the mixing and degassed tank 21. The structure of the conical buffer chamber 31 facilitates the convergence of material towards the central filter element 32. As an optional embodiment, the filter element 32 is configured as a double-layer composite filter structure and fixed inside the conical buffer chamber 31. The inner layer is a high-precision stainless steel woven mesh used to intercept fine impurities, and the outer layer is a coarse filter protective mesh to improve overall dirt-holding capacity and service life. The discharge valve is located at the discharge port of the conical buffer chamber 31. As an optional embodiment, a pneumatic or electric control valve can be used in conjunction with a flow meter to achieve precise dispensing. The mixed and degassed lubricating oil enters the conical buffer chamber 31, is filtered for impurities by the internal double-layer composite filter, and is finally dispensed under the control of the discharge valve. The conical structure facilitates material flow and reduces residue, while the double-layer filter improves filtration accuracy and dirt-holding capacity, ensuring the cleanliness of the output and the accuracy of dispensing, thus meeting the high purity requirements of insulating lubricating oil.

[0040] The implementation principle of the high-efficiency homogeneous mixing production device for insulating lubricating oil for new energy vehicles in this application embodiment is as follows: multiple independent processes such as dispersion, preheating, mixing, degassing, filtration, and packaging are integrated into a continuous and automated device, which greatly reduces material transfer, waiting time, and human intervention, and improves production efficiency. The preliminary dispersion and preheating process of the pre-dispersion component 1 creates good initial conditions for subsequent main mixing. Mixing and degassing are carried out simultaneously. Vacuum degassing is directly used in the dynamic process of mixing, which can immediately break newly generated and encapsulated bubbles, significantly improving the uniformity, density, and insulation performance of the product. The entire process is connected by sealed pipelines to prevent the intrusion of external impurities and the loss of internal volatile components, ensuring the purity of the product and the cleanliness and safety of the production environment.

[0041] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A high-efficiency homogeneous mixing production apparatus for insulating lubricating oil for new energy vehicles, characterized in that, It includes a pre-dispersion component (1), a mixing and degassing component (2), and a conveying component (3); The pre-dispersion component (1) is used to initially disperse and preheat the raw materials, break up large agglomerates, and control the initial stability of the polymer system. The mixing and degassing component (2) is used to perform vacuum degassing on the lubricating oil while homogenizing it, thereby eliminating newly generated bubbles and existing bubbles in the system during the mixing process. The conveying assembly (3) is used to filter and dispense the insulating lubricating oil that has been mixed and degassed. The pre-dispersion component (1), the mixing and degassing component (2), and the conveying component (3) are connected in sequence through a sealed pipeline.

2. The high-efficiency homogeneous mixing production device for insulating lubricating oil for new energy vehicles according to claim 1, characterized in that, The mixing and degassing assembly (2) includes a mixing and degassing tank (21), a degassing rotor assembly (22), and a vacuum component (24); the mixing and degassing tank (21) is a top-sealed tank, the top of the mixing and degassing tank (21) is provided with a feed inlet, a vacuum port and a drive shaft sealing interface, and the bottom of the mixing and degassing tank (21) is provided with a discharge port; The vacuum component (24) is connected to the interior of the mixing and degassing tank (21) through the vacuum port. The vacuum component (24) is used to establish and maintain a vacuum environment inside the mixing and degassing tank (21). The degassing rotor assembly (22) includes a hollow rotating shaft (221), a vacuum distribution chamber (222), a dynamic vacuum chamber (223), and a retractable wall-scraping stirring blade (224). The hollow rotating shaft (221) is driven to rotate by a drive motor at the top of the mixing degassing tank (21). The hollow rotating shaft (221) is coaxially arranged with the mixing degassing tank (21) and rotatably connected inside the mixing degassing tank (21). The vacuum distribution chamber (222) is sleeved on the upper part of the hollow rotating shaft (221) and fixedly connected to the inner wall of the mixing degassing tank (21). The contact surface between the lower part of the vacuum distribution chamber (222) and the hollow rotating shaft (221) is sealed with a sealing element. The upper part of the vacuum distribution chamber (222) is connected to the interior of the mixing degassing tank (21). The dynamic vacuum chamber (223) is a cylindrical cavity. The dynamic vacuum chamber (223) is fixedly connected to the lower part of the hollow rotating shaft (221) and rotates synchronously with the hollow rotating shaft (221). The sidewalls and bottom of the dynamic vacuum chamber (223) are porous structures. The dynamic vacuum chamber (223) is periodically or continuously connected to the vacuum distribution chamber through the axial channel inside the hollow rotating shaft (221). The stirring blades (224) are arranged in multiple sets and are arranged circumferentially along the dynamic vacuum chamber (223). One end of the stirring blades (224) is connected to the outer wall of the dynamic vacuum chamber (223) by a hinge or elastic element. The outer shape of the stirring blades (224) matches the curvature of the inner wall of the mixing and degassing tank (21).

3. A high-efficiency homogeneous mixing production apparatus for insulating lubricating oil for new energy vehicles as described in claim 2, characterized in that, At least one radial through hole is provided on the shaft segment corresponding to the hollow rotating shaft (221) and the vacuum distribution cavity (222) along the axial direction.

4. A high-efficiency homogeneous mixing production apparatus for insulating lubricating oil for new energy vehicles according to claim 2 or 3, characterized in that, The mixing degassing tank (21) is coaxially fixedly installed with a stator screen barrel (23), which is provided with sieve holes, and there is a shear gap between the stator screen barrel (23) and the stirring blade (224).

5. The high-efficiency homogeneous mixing production device for insulating lubricating oil for new energy vehicles according to claim 2, characterized in that, The pre-dispersion assembly (1) includes a pre-dispersion tank (11), a pre-dispersion device (12), and a thermally conductive jacket (13). The pre-dispersion device (12) is located at the bottom of the pre-dispersion tank (11). The pre-dispersion device (12) includes a driving gear (121) and a driven gear (122). The driving gear (121) and the driven gear (122) mesh with each other and compress the polymer. The thermally conductive jacket (13) is wrapped around the outer wall of the pre-dispersion tank (11). The thermally conductive jacket (13) is filled with a thermally conductive medium. The temperature of the thermally conductive jacket (13) can be controlled by a temperature control system.

6. The high-efficiency homogeneous mixing production apparatus for insulating lubricating oil for new energy vehicles according to claim 1, characterized in that, The conveying assembly (3) includes a conical buffer chamber (31), a filter element (32), and a discharge valve; the filter element (32) is used to filter and intercept impurities in the mixed lubricating oil, the filter element (32) is fixed inside the conical buffer chamber (31), and the discharge valve is located at the discharge port of the conical buffer chamber (31).

7. A high-efficiency homogeneous mixing production apparatus for insulating lubricating oil for new energy vehicles according to claim 2 or 3, characterized in that, The porous structure of the sidewalls and bottom of the dynamic vacuum cavity (223) is a gradient pore structure, and the pore size of the porous structure gradually increases radially outward; the dynamic vacuum cavity (223) body includes at least two layers.

8. The high-efficiency homogeneous mixing production apparatus for insulating lubricating oil for new energy vehicles according to claim 2, characterized in that, A permanent magnet block is fixedly embedded on the inner side of the free end of the stirring blade (224), and several sets of electromagnetic coils are wound on the outer wall of the mixing and degassing tank (21) at positions corresponding to the mixing trajectory of the stirring blade (224).

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