An integrated stator structure motor

Abstract

The application relates to the technical field of integrated motors, and discloses a motor with an integrated stator structure, which comprises a rotor assembly fixedly arranged in the middle of a water pump middle layer fixing frame, and a cavitation filtration device arranged below the water pump middle layer fixing frame; the cavitation filtration device comprises a gap fixing frame, and a plurality of groups of filtering and radiating assemblies are arranged in the inner side of the gap fixing frame; the filtering and radiating assemblies comprise filtering assemblies, water inlet assemblies and water outlet assemblies; the filtering assemblies are used for filtering water bodies; the three-level structure is used for intercepting bubbles of different sizes, full-dimension degassing is realized to prevent core component cavitation wear and electrochemical corrosion and prolong the service life, impurities are synchronously filtered to avoid affecting heat dissipation or blocking flow channels and reducing the operation failure rate, clean bubble-free fluid can eliminate the idling phenomenon, reduce friction resistance and improve operation energy efficiency.

Description

Technical Field

[0001] This invention belongs to the field of integrated motor technology, and more specifically, relates to a motor with an integrated stator structure. Background Technology

[0002] During the operation of a vehicle's powertrain, the cooling system plays a crucial role in heat dissipation. The water pump, as the "heart" of the cooling system, directly determines the coolant circulation efficiency through its operational stability, thus affecting the engine's operating temperature and lifespan. As automotive engines develop towards higher power and higher compression ratios, the demands on the water pump's flow rate and head in the cooling system continue to increase. The operational pain points of traditional water pumps are becoming increasingly prominent, mainly focusing on two core issues: cavitation damage and rotor high-temperature failure. These have become key bottlenecks restricting the reliability of the cooling system. However, existing integrated motor technologies have the following drawbacks:

[0003] In the coolant circulation path of traditional water pumps, water is prone to generating bubbles due to temperature changes, pipeline pressure fluctuations, or design flaws in the flow channel. These bubbles, carried by the coolant into the pump's flow channel, rapidly burst in the high-pressure area generated by the high-speed rotation of the impeller, creating localized instantaneous high pressure and micro-jet flow. This "cavitation effect" causes continuous impact on core components such as the impeller and pump casing, leading to honeycomb-like pits, metal flaking, and even flow channel blockage. Simultaneously, the bubble bursting process is accompanied by electrochemical corrosion, accelerating component aging. Data shows that cavitation in traditional water pumps increases impeller wear rate, generally shortening component lifespan to 1-2 years. This not only increases maintenance costs but may also lead to safety hazards such as engine overheating and power reduction due to water pump performance degradation.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a motor with an integrated stator structure in order to achieve a more practical and valuable purpose. Summary of the Invention

[0005] This invention provides a motor with an integrated stator structure to overcome the aforementioned defects in the prior art.

[0006] The purpose and effectiveness of the integrated stator structure motor of this invention are achieved by the following specific technical means:

[0007] An integrated stator structure motor includes a water pump middle layer fixing frame, a rotor assembly fixedly installed in the middle of the water pump middle layer fixing frame, and a cavitation filter device installed below the water pump middle layer fixing frame. The cavitation filter device includes a gap fixing frame, and a plurality of filter heat dissipation components are arrayed on the inner side of the gap fixing frame.

[0008] The filtration and heat dissipation assembly includes a filter assembly, a water inlet assembly, and a drainage assembly. The filter assembly is used to filter water, and the water inlet assembly is used to intercept air bubbles entrained in the coolant flowing into the air filter device through the water inlet.

[0009] The water inlet assembly is equipped with a three-stage gas-liquid filtration integrated module. The three-stage gas-liquid filtration integrated module includes a water inlet cylinder. The water inlet cylinder is equipped with a bubble interception component for initial physical interception of bubbles and a microbubble capture module for further dispersing bubbles. It is also equipped with a microporous ceramic block for capturing microbubbles.

[0010] In a further technical solution, the cavitation filtration device also includes a gap fixing frame. The gap fixing frame is arranged in a ring array with multiple embedding slots. A filter heat dissipation component is fixedly installed inside the multiple embedding slots. A middle sleeve assembly is provided on the inner side of the gap fixing frame. A rotor assembly is installed inside the middle sleeve assembly. A middle sealing partition is provided at the upper end of the rotor assembly. A rotating connecting part is fixedly connected to the output end of the rotor assembly. An impeller assembly is fixedly connected to the upper end of the rotating connecting part. A gap is provided between the impeller assembly and the filter heat dissipation component.

[0011] A further technical solution includes a filter assembly, a water inlet assembly, and a drain assembly. A drain assembly is located on one side of the water inlet assembly, and multiple sets of filter assemblies are located on the other side. These multiple sets of filter assemblies, the water inlet assembly, and the drain assembly are closed together to form a ring. A water inlet connector is provided between the water inlet assembly and the filter assembly, and also between the multiple sets of filter assemblies spaced apart, as well as between the filter assembly and the drain assembly. A water inlet opening is located inside the water inlet assembly, and a drain outlet is located inside the drain assembly. One-way vent valves are provided inside the water inlet assembly, the filter assembly, and the drain outlet. The water inlet is connected to the interior of the middle-layer sleeve assembly.

[0012] A further technical solution includes a gas-liquid three-stage filtration integrated module inside the water inlet assembly. The gas-liquid three-stage filtration integrated module includes a water inlet cylinder. Inside the water inlet cylinder are a water inlet gas-liquid pre-interception chamber, a flow-guiding bubble diversion chamber, and a bubble guiding component. Inside the water inlet cylinder is a bubble interception component. Inside the flow-guiding bubble diversion chamber is a microbubble capture module. Inside the bubble guiding component are microporous ceramic blocks. One end of the microbubble capture module is connected to the water inlet gas-liquid pre-interception chamber, and the other end of the microbubble capture module is connected to the bubble guiding component.

[0013] A further technical solution includes an upper cover plate and a middle partition plate. The upper cover plate and the middle partition plate are arranged opposite to each other. The upper cover plate is positioned above the middle partition plate. A spiral filter screen is provided between the upper cover plate and the middle partition plate. A ceramic filter plate is provided above the middle partition plate. A middle vertical column is arranged in a ring array on the surface of the ceramic filter plate. The upper end of the middle vertical column is fixedly connected to the upper cover plate. A rotating interception component is provided inside the ring array of the middle vertical column.

[0014] In a further technical solution, the rotating interception assembly includes an upper ceramic filter and a lower ceramic filter, the upper ceramic filter and the lower ceramic filter are arranged opposite to each other, and a plurality of rotating shafts are arranged in a ring array between the upper ceramic filter and the lower ceramic filter. A circular filter is rotatably mounted on the rotating shaft, and the surfaces of the upper ceramic filter, the lower ceramic filter and the circular filter are made of ultrafiltration ceramic material.

[0015] A further technical solution is provided where a cavitation filter device is fixedly connected below the middle layer fixing frame of the water pump, an iron coil assembly is fixedly connected below the cavitation filter device, a water pump cover is fixedly installed above the middle layer fixing frame of the water pump, and the impeller assembly is provided between the water pump cover and the middle layer fixing frame of the water pump.

[0016] In a further technical solution, the impeller assembly includes a middle barrel, an impeller is fixed to the outer side of the middle barrel, the lower end of the middle barrel is movably connected to the middle sleeve assembly, the rotating connecting part is fixedly connected to the impeller, and the bottom plate of the impeller is provided with multiple through-hole slots.

[0017] A further technical solution is provided with an inlet and an outlet on the outer side of the water pump cover. The inlet and the outlet are arranged vertically opposite each other, and the inlet of the inlet is connected to the middle barrel of the impeller assembly.

[0018] In a further technical solution, the one-way exhaust valve of the gas-liquid three-stage filtration integrated module is connected to the interior of the flow-guiding bubble diversion chamber, and the microporous ceramic block is also provided inside the filtration component and the drainage component.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention discloses an integrated stator structure motor that utilizes a three-stage progressive gas-liquid separation module consisting of a "water inlet gas-liquid pre-interception chamber + flow guiding bubble diversion chamber + bubble decanting component." This three-stage structure specifically intercepts bubbles of different sizes, achieving full-dimensional degassing to prevent cavitation wear and electrochemical corrosion of core components and extend their lifespan. Simultaneously, it filters impurities to avoid affecting heat dissipation or clogging flow channels, reducing operational failure rates. Furthermore, it eliminates the "idling" phenomenon by ensuring clean, bubble-free fluid, reducing frictional resistance and improving operational efficiency. The discharged bubbles form an airflow that blows across the stator surface, and the module's thermal design lowers the temperature, while simultaneously reducing fluid temperature to inhibit bubble regeneration, forming a virtuous cycle of "degassing - heat dissipation - bubble suppression." This ensures stable motor operation under high power and high speed conditions.

[0021] This invention discloses an integrated stator structure motor that achieves a collaborative working mechanism of gas-liquid separation, heat dissipation, and bubble suppression. On the one hand, the bubbles intercepted during the gas-liquid separation process are used as an auxiliary heat dissipation medium and are directionally guided to the surface of the high-speed rotating rotor assembly through a one-way exhaust valve. The flow of bubbles creates a blowing effect, providing additional heat dissipation for the rotor. On the other hand, relying on the filter heat dissipation components arranged in a ring array, the tight fit between the components and the rotor shell, as well as their excellent thermal conductivity, constructs a metal heat conduction path to quickly dissipate the heat generated by the rotor operation.

[0022] This invention discloses an integrated stator structure motor that integrates a filter assembly, a water inlet assembly, and a drainage assembly through a water inlet connector, achieving an integrated design of three core functions: impurity filtration, bubble interception, and coolant flow guidance. The filter assembly purifies the water, the water inlet assembly uses a built-in filtration module to handle bubbles, and the precise fit between the water inlet connector and the drain outlet ensures directional flow of the coolant. These three components work together to form a complete fluid processing chain. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall bottom view of the present invention;

[0028] Figure 4 This is a schematic diagram of the overall exploded appearance structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the overall exploded structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the overall side profile of the cavitation filtration device in this invention;

[0031] Figure 7 This is a schematic diagram of the overall appearance structure of the filter heat dissipation component in this invention;

[0032] Figure 8 This is a top view of the overall structure of the filtering and heat dissipation assembly in this invention;

[0033] Figure 9 This is a schematic diagram of the overall appearance structure of the gas-liquid three-stage filtration integrated module in this invention;

[0034] Figure 10 This is a schematic diagram of the overall side cross-section structure of the gas-liquid three-stage filtration integrated module in this invention;

[0035] Figure 11 This is a schematic diagram of the overall front view structure of the bubble interception component in this invention;

[0036] Figure 12 This is a schematic diagram of the overall appearance and structure of the bubble interception component of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Pump cover; 11. Inlet; 12. Outlet;

[0039] 2. Pump intermediate mounting frame; 21. Rotor assembly;

[0040] 3. Cavitation filtration device; 31. Gap fixing bracket; 32. Filter heat dissipation assembly; 33. Middle layer sleeve assembly; 34. Middle layer sealing partition; 35. Rotary connection part; 321. Filter assembly; 322. Water inlet assembly; 323. Drainage assembly; 324. Water inlet connector; 325. Drain outlet; 326. One-way exhaust valve;

[0041] 4. Iron coil assembly;

[0042] 5. Impeller assembly;

[0043] 6. Three-stage gas-liquid filtration integrated module; 61. Water inlet cylinder; 611. Water inlet gas-liquid pre-interception chamber; 612. Flow guiding bubble diversion chamber; 613. Bubble guiding component; 6121. Microbubble capture module; 6131. ​​Microporous ceramic block;

[0044] 7. Bubble interception assembly; 71. Upper cover plate; 72. Middle vertical column; 73. Spiral filter screen; 74. Ceramic filter plate; 75. Middle partition plate;

[0045] 8. Rotary interception assembly; 81. Upper ceramic filter; 82. Lower ceramic filter; 83. Circular filter. Detailed Implementation

[0046] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0047] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] As attached Figure 1 To be continued Figure 12 As shown:

[0050] This invention provides an integrated stator structure motor, including a water pump intermediate layer fixing frame 2. A cavitation filter device 3 is installed below the water pump intermediate layer fixing frame 2. The cavitation filter device 3 includes a gap fixing frame 31, and a plurality of filter heat dissipation components 32 are arrayed on the inner side of the gap fixing frame 31. The array design enables multi-path synchronous processing of coolant, improving gas-liquid separation and impurity filtration efficiency. At the same time, the aluminum alloy filter heat dissipation components 32 can quickly dissipate rotor heat, avoiding high temperature accelerating coolant vaporization.

[0051] The filtration and heat dissipation assembly 32 includes a filter assembly 321, a water inlet assembly 322, and a drainage assembly 323. The filter assembly 321 is used to filter water (intercepting fine impurities of 0.5-3μm, making the impurity content of the coolant ≤0.01mg / L). The water inlet assembly 322 is used to intercept air bubbles entrained in the coolant flowing into the air filtration device through the water inlet (by gradually removing air bubbles of different particle sizes through a three-stage filtration structure, the final air bubble content is ≤0.1%, eliminating cavitation from the source).

[0052] The water inlet assembly 322 is internally equipped with a three-stage gas-liquid filtration integrated module 6. The three-stage gas-liquid filtration integrated module 6 includes a water inlet cylinder 61. The water inlet cylinder 61 is internally equipped with a bubble interception assembly 7 for initial physical interception of bubbles (which can remove large bubbles with a diameter ≥10μm, with an initial degassing rate of over 85%), a microbubble capture module 6121 for further dispersing bubbles (which gathers 3-10μm microbubbles through centrifugal force, with a removal rate of 90%), and a microporous ceramic block 6131 for capturing microbubbles (which accurately captures microbubbles ≤3μm, achieving ultimate degassing).

[0053] Preferably, referring to Figures 3 to 6, the cavitation filtration device 3 further includes a gap fixing frame 31. The gap fixing frame 31 has multiple embedded slots arranged in a ring array. Filter heat dissipation components 32 are fixedly installed inside the multiple embedded slots (modular installation design, disassembly and replacement time of a single component ≤10min, improving maintenance convenience). A middle sleeve assembly 33 is provided inside the gap fixing frame 31. A rotor assembly 21 is installed inside the middle sleeve assembly 33. A middle sealing baffle 34 is provided at the upper end of the rotor assembly 21 (which can limit the flow area of ​​coolant, ensuring that it all passes through the gas-liquid separation filtration module and preventing untreated coolant from directly entering the circulation). A rotating connection part 35 is fixedly connected to the output end of the rotor assembly 21. An impeller assembly 5 is fixedly connected to the upper end of the rotating connection part 35. A gap is provided between the impeller assembly 5 and the filter heat dissipation component 32 (to reserve water flow buffer space, to avoid the impeller rotation from impacting the filter assembly, and at the same time to ensure the water flow velocity ≥1.5m / s, preventing coolant stagnation).

[0054] Preferably, referring to Figures 6 to 8, the filtration and heat dissipation assembly 32 includes a filter assembly 321, a water inlet assembly 322, and a drain assembly 323. A drain assembly 323 is provided on one side of the water inlet assembly 322, and multiple sets of filter assemblies 321 are provided on the other side. These multiple sets of filter assemblies 321, together with the water inlet assembly 322 and the drain assembly 323, form a closed loop (the loop structure allows the coolant to flow in a closed loop, improving filtration uniformity). A water inlet connector 324 is provided between the water inlet assembly 322 and the filter assembly 321, and also between the multiple sets of filter assemblies 321 spaced apart, and between the filter assembly 321 and the drain assembly 323 (ensuring unobstructed water flow and avoiding local blockage). A water inlet opening is provided inside the water inlet assembly 322, and the drain assembly 323... The inner side is provided with a drain outlet 325. The inner side of the water inlet assembly 322, the filter assembly 321 and the drain outlet 325 are all provided with a one-way exhaust valve 326 (to directionally discharge the accumulated air bubbles, with an exhaust speed ≥0.2m / s, to prevent air bubbles from flowing back). The water inlet is connected to the inside of the middle sleeve assembly 33.

[0055] Preferably, referring to Figures 8 to 12, the water inlet assembly 322 is internally provided with a three-stage gas-liquid filtration integrated module 6. The three-stage gas-liquid filtration integrated module 6 includes a water inlet cylinder 61. The water inlet cylinder 61 is internally provided with a water inlet gas-liquid pre-interception chamber 611, a flow-guiding bubble diversion chamber 612, and a bubble guiding assembly 613. The water inlet cylinder 61 is internally provided with a bubble interception assembly 7. The flow-guiding bubble diversion chamber 612 contains a microbubble capture module 6121. The bubble guiding assembly 613 contains a microporous ceramic block 6131. ​​One end of the microbubble capture module 6121 is connected to the water inlet gas-liquid pre-interception chamber 611, and the other end of the microbubble capture module 6121 is connected to the bubble guiding assembly 613 (the three cavities are connected sequentially to achieve gradual removal of bubbles and avoid incomplete filtration in a single pass).

[0056] Preferably, referring to Figures 11 and 12, the bubble interception assembly 7 includes an upper cover plate 71 and a middle partition plate 75. The upper cover plate 71 and the middle partition plate 75 are disposed opposite each other, with the upper cover plate 71 positioned above the middle partition plate 75. A spiral filter screen 73 is provided between the upper cover plate 71 and the middle partition plate 75 (to guide the coolant to flow along a spiral path and prevent water flow turbulence from causing bubble diffusion). A ceramic filter plate 74 (filtration accuracy 3-5μm, simultaneously intercepting impurities ≥3μm) is provided above the middle partition plate 75. A middle vertical column 72 is arranged in a ring array on the surface of the ceramic filter plate 74. The upper end of the middle vertical column 72 is fixedly connected to the upper cover plate 71. A rotating interception assembly 8 is provided inside the ring array of the middle vertical column 72.

[0057] Preferably, referring to Figure 12, the rotating interception assembly 8 includes an upper ceramic filter 81 and a lower ceramic filter 82, the upper ceramic filter 81 and the lower ceramic filter 82 are arranged opposite to each other, and a plurality of rotating shafts are arranged in a ring array between the upper ceramic filter 81 and the lower ceramic filter 82. A circular filter 83 is rotatably mounted on the rotating shaft. The surfaces of the upper ceramic filter 81, the lower ceramic filter 82 and the circular filter 83 are made of ultrafiltration ceramic material (pore size 5-10μm). When the circular filter 83 is rotated by the impact of water flow, it can cut and intercept medium and large air bubbles, further improving the degassing effect.

[0058] Preferably, referring to Figures 4 and 5, a cavitation filter device 3 is fixedly connected below the water pump intermediate layer fixing frame 2, and an iron coil assembly 4 is fixedly connected below the cavitation filter device 3. A water pump top cover 1 is fixedly installed above the water pump intermediate layer fixing frame 2, and the impeller assembly 5 is located between the water pump top cover 1 and the water pump intermediate layer fixing frame 2. When the iron coil assembly 4 is energized, it generates a magnetic field to drive the rotor to rotate. The impeller assembly 5 generates centrifugal force as the rotor rotates, which promotes the circulation of coolant. Together with the cavitation filter device 3, it can achieve a synergistic effect of "degassing-filtration-heat dissipation", so that the water pump flow fluctuation is ≤5% and the head stability is ≥95%.

[0059] Preferably, referring to Figures 4 and 5, the impeller assembly 5 includes a middle barrel, an impeller is fixed to the outer side of the middle barrel, the lower end of the middle barrel is movably connected to the middle sleeve assembly 33, the rotating connecting part 35 is fixedly connected to the impeller, and the bottom plate of the impeller is provided with multiple through-hole slots (to facilitate the rapid entry of coolant into the middle barrel, while reducing water flow resistance, improving circulation efficiency, and improving the pump operating efficiency by 8%-15%).

[0060] Preferably, referring to Figures 4 and 5, the outer side of the water pump cover 1 is provided with an inlet 11 and an outlet 12. The inlet 11 and the outlet 12 are arranged vertically opposite each other. The inlet of the inlet 11 is connected to the middle barrel of the impeller assembly 5. The vertical layout can make the coolant form a smooth "inlet-circulation-outlet" path, avoid the water flow obstruction caused by pipe bends, and ensure the stability of the closed-loop circulation of the cooling system.

[0061] Preferably, referring to Figures 4 and 5, the one-way exhaust valve 326 of the gas-liquid three-stage filtration integrated module 6 is connected to the interior of the flow-guiding bubble diversion chamber 612, and the microporous ceramic block 6131 is also provided inside the filter component 321 and the drainage component 323. The microporous ceramic block and exhaust valve are arranged in multiple positions to realize multi-stage degassing and filtration of coolant, ensuring that the coolant entering the circulation meets the cavitation protection requirements, reducing the honeycomb wear of impeller and pump casing to below 0.01mm / 1000h, reducing the electrochemical corrosion rate by more than 90%, and extending the service life of components by 2-3 times.

[0062] Specific usage of this invention:

[0063] When using this device, the overall assembly and pipeline connection must be completed first: integrate the device into the car cooling system, wherein the water pump cover 1 is installed above the water pump middle layer fixing frame 2, the lower end of the rotor assembly 21 fixed in the middle of the water pump middle layer fixing frame 2 is engaged with the iron coil assembly 4, and the cavitation filter device 3 is fixed below; when connecting the pipeline, connect the water inlet 11 on the outside of the water pump cover 1 (connected to the middle barrel of the impeller assembly 5) to the water outlet pipe of the car cooling circulation system, and connect the water outlet 12 (perpendicular to the water inlet 11) to the system water inlet pipe, so as to ensure that the coolant can form a closed loop circulation along "system water outlet pipe → water inlet 11 → inside the device → water outlet 12 → system water inlet pipe", which realizes the dual functions of coolant circulation cooling and cavitation protection.

[0064] In traditional circulating water pumps, the rotor's continuous energization leads to a sustained increase in temperature. Furthermore, the coolant entering the pump easily traps air bubbles, causing cavitation and resulting in honeycomb-like wear and electrochemical corrosion of the pump impeller and casing. Simultaneously, the high temperature accelerates water vaporization, generating even more bubbles, creating a vicious cycle of "high temperature-cavitation," ultimately leading to reduced pump flow, unstable head, and even permanent component damage. This device addresses these problems through structural optimization and functional integration. The specific operation process and effects are as follows:

[0065] I. Coolant gas-liquid separation and filtration process (three-stage degassing + impurity filtration)

[0066] When the coolant enters the middle tank of the impeller assembly 5 from the inlet 11, it is confined to the area above the middle sealing baffle 34 inside the middle sleeve assembly 33 by the middle sealing baffle 34. Then, it flows into the gas-liquid three-stage filtration integrated module 6 inside the water inlet assembly 322 of the cavitation filtration device 3 through the water inlet opening on the inner side of the water inlet assembly 322 of the filtration heat dissipation assembly 32, thus starting the gas-liquid separation and filtration process.

[0067] First-stage gas-liquid pre-interception (large bubble removal + preliminary flow guidance): The coolant first enters the water inlet gas-liquid pre-interception chamber 611 of the three-stage gas-liquid filtration integrated module 6. The bubble interception component 7 in the chamber plays a role—the spiral filter screen 73 between the upper cover plate 71 and the middle partition plate 75 guides the coolant to flow along the spiral path, avoiding water flow turbulence that causes bubble diffusion; at the same time, on the inner side of the middle vertical column 72 of the annular array above the middle partition plate 75, the upper ceramic filter 81 and the lower ceramic filter 82 (both made of ultrafiltration ceramic material with a pore size of 5-10μm) form a physical barrier, directly blocking large bubbles with a diameter ≥10μm and breaking up the gas-liquid mixture; when the coolant permeates from the upper ceramic filter 81 to the lower ceramic filter 82, the circular filter 83 on the rotating shaft between the two is impacted and rotated by the water flow. During the rotation, it further cuts and intercepts medium and large bubbles that are not blocked by the filter, causing the bubbles to gather and float. The preliminary degassing rate can reach more than 85%, effectively preventing a large number of bubbles from entering the subsequent chamber.

[0068] Secondary microbubble capture (small bubble aggregation + diversion): The coolant after primary treatment passes through the ceramic filter plate 74 above the middle partition 75 (filtration accuracy 3-5μm, simultaneously intercepting impurities with a particle size ≥3μm in the water) and enters the microbubble capture module 6121 in the guide bubble diversion chamber 612; the spiral guide structure inside the module guides the coolant to flow along the spiral trajectory, and uses centrifugal force to make microbubbles with a diameter of 3-10μm aggregate towards the center of the flow channel, and then float up along the exhaust channel of the guide structure to achieve secondary gas-liquid separation. At this time, the diameter of the bubbles in the coolant is ≤3μm, and the microbubble removal rate reaches 90%. At the same time, the clean water flows smoothly into the bubble guiding component 613 along the guide structure.

[0069] Three-stage final degassing + impurity filtration: The microporous ceramic block 6131 (pore diameter 0.5-1μm) inside the bubble guiding component 613 performs final treatment on the coolant, precisely capturing tiny bubbles with a diameter ≤3μm through its fine pores. After the bubbles gather inside the microporous ceramic block to form large bubbles, they flow along the internal channel of the component to the one-way exhaust valve 326. At the same time, the filter component 321 in the heat dissipation filter component 32 (also equipped with microporous ceramic block 6131) performs secondary filtration on the coolant, intercepting fine impurities with a particle size of 0.5-3μm in the water. The microporous ceramic block 6131 in the drainage component 323 performs a final degassing check on the coolant that is about to enter the impeller component 5, ensuring that the bubble content of the coolant that finally enters the circulation is ≤0.1% and the impurity content is ≤0.01mg / L, completely eliminating the source of cavitation.

[0070] II. Coolant Circulation Drive Process (Stable Power + High-Efficiency Flow)

[0071] After gas-liquid separation and filtration are completed, the iron coil assembly 4 is energized to generate a magnetic field, driving the rotor assembly 21 in the middle of the water pump's middle layer fixed frame 2 to rotate at high speed (the speed can be adjusted according to the car's cooling requirements, with a typical range of 2000-5000 r / min). The upper end of the rotor assembly 21 drives the impeller assembly 5 to rotate synchronously through the rotating connection part 35. When the middle barrel of the impeller assembly 5 rotates with the impeller, a negative pressure is generated in the closed cavity formed by the water pump's upper cover 1 and the middle layer fixed frame. The negative pressure forms an adsorption force on the drainage assembly 323 and the interior of the filter assembly 321 of the cavitation filtration device 3, promoting... The coolant forms a circular circulation inside the filter and heat dissipation assembly 32 through the water inlet connector 324 (water flow velocity ≥1.5m / s, ensuring no coolant stagnation). Finally, the coolant enters the middle tank of the impeller assembly 5 through the drain outlet 325 on the inner side of the drain assembly 323. The centrifugal force generated by the high-speed rotation of the impeller pushes the coolant outward along the flow channel of the impeller on the outer side of the middle tank, and finally discharges it from the outlet 12 of the water pump cover 1 to the vehicle cooling system, completing one complete cycle. During the cycle, the flow rate fluctuation is ≤5%, and the head stability is ≥95%, ensuring the heat dissipation efficiency of the cooling system.

[0072] III. Heat Dissipation and Protection Process (Dual Heat Dissipation + Inhibition of Bubble Regeneration)

[0073] When the rotor assembly 21 rotates at high speed (power 50-100W), the surface temperature will rise to 80-120℃. If the heat cannot be dissipated in time, it can easily cause a high-temperature short circuit in the iron coil assembly 4 (the conventional coil withstands a temperature ≤150℃). At the same time, the high temperature will accelerate the vaporization of the coolant and generate bubbles. This device solves this problem through a dual heat dissipation structure:

[0074] Heat dissipation: The filter heat dissipation component 32, which is installed in a ring array on the gap fixing bracket 31 of the cavitation filter device 3, has its outer shell tightly fitted with the outer shell of the rotor assembly 21 (gap ≤ 0.5 mm). The filter heat dissipation component 32 is made of aluminum alloy (thermal conductivity ≥ 200 W / (m・K)), which can quickly conduct the heat on the surface of the rotor assembly 21 to the coolant, so that the surface temperature of the rotor drops to 60-80℃, and the temperature of the iron coil assembly 4 drops to 50-70℃ at the same time, avoiding high temperature failure.

[0075] Bubble-driven heat dissipation: In the bubble diversion chamber 612 of the gas-liquid three-stage filtration integrated module 6, the bubbles guided by the microbubble capture module 6121 and the bubbles intercepted by the filter component 321 and the drainage component 323 are all directionally discharged through the one-way exhaust valve 326 inside each component (exhaust speed ≥ 0.2m / s, to avoid bubble backflow); the discharged bubbles flow along the surface of the rotor component 21 and the iron coil component 4, forming an airflow blowing effect, further carrying away surface heat, and reducing the rotor temperature by 5-10℃. At the same time, the low temperature environment reduces the amount of coolant vaporization (for every 10℃ decrease in water temperature, the water vaporization rate decreases by about 15%), inhibiting bubble regeneration from the source and forming a synergistic cycle of "heat dissipation-bubble suppression-cavitation prevention".

[0076] IV. Core Effects and Advantages of the Device (Multi-dimensional Protection of Water Pump Operation)

[0077] Cavitation damage is significantly reduced: Through a three-stage gas-liquid separation structure, the bubble removal rate in the coolant is ≥99.9%, and the impurity filtration accuracy reaches 0.5μm, which can completely avoid cavitation caused by bubbles entering the flow channel. According to actual measurements, after using this device, the honeycomb wear of the pump impeller and pump casing is reduced to less than 0.01mm / 1000h, the electrochemical corrosion rate is reduced by more than 90%, the service life of components is extended by 2-3 times, and the maintenance and replacement costs are greatly reduced.

[0078] Significantly improved operational stability: Without the influence of cavitation, the water pump flow rate is stable at 95%-105% of the design value, and the head fluctuation is ≤5%. Even when the car is under high load (such as high speed driving or climbing), it can still maintain stable output, ensuring the cooling system's heat dissipation effect on the engine and avoiding power reduction or failure caused by engine overheating.

[0079] Synergistic effect of "reduced cavitation and temperature control": The heat dissipation structure reduces the temperature of the rotor and coil by 30-50°C, which not only avoids high-temperature failures, but also reduces the temperature of the coolant by 5-10°C, reduces the vaporization rate of water by 15%-30%, reduces the amount of bubbles generated, and further reduces the pressure of cavitation protection; at the same time, the low-temperature coolant has better fluidity (viscosity reduced by about 10%-20%), reduces the impeller rotation resistance, improves the energy efficiency of water pump operation by 8%-15%, and reduces vehicle energy consumption.

[0080] Optimized maintenance convenience: The filter heat dissipation component 32 is modularly installed through the embedded groove of the gap fixing bracket 31, and the disassembly and replacement time of a single component is ≤10min; the microporous ceramic block 6131 adopts a detachable design, extending the cleaning cycle to 5000-10000km. Compared with the traditional water pump filter (which needs to be replaced every 2000-3000km), the maintenance frequency is reduced by more than 50%, reducing the user's maintenance costs and time.

[0081] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A motor with an integrated stator structure, characterized in that: A water pump middle layer fixing frame (2) is fixedly installed in the middle of the water pump middle layer fixing frame (2). A cavitation filter device (3) is installed below the water pump middle layer fixing frame (2). The cavitation filter device (3) includes a gap fixing frame (31). Several sets of filter heat dissipation components (32) are arrayed on the inner side of the gap fixing frame (31). The filter heat dissipation assembly (32) includes a filter assembly (321), a water inlet assembly (322), and a drain assembly (323). The filter assembly (321) is used to filter water, and the water inlet assembly (322) is used to intercept air bubbles carried in the coolant flowing into the air filter device through the water inlet. The water inlet assembly (322) is equipped with a gas-liquid three-stage filtration integrated module (6). The gas-liquid three-stage filtration integrated module (6) includes a water inlet cylinder (61). The water inlet cylinder (61) is equipped with a bubble interception assembly (7) for preliminary physical interception of bubbles and a microbubble capture module (6121) for further dispersing bubbles. It is also equipped with a microporous ceramic block (6131) for capturing microbubbles. The cavitation filtration device (3) also includes a gap fixing frame (31), which is arranged in a ring array with multiple embedded slots, and a filter heat dissipation component (32) is fixedly installed inside the multiple embedded slots. The gap fixing bracket (31) is provided with a middle sleeve assembly (33) inside, and a rotor assembly (21) is installed inside the middle sleeve assembly (33). The upper end of the rotor assembly (21) is provided with a middle sealing partition (34). The output end of the rotor assembly (21) is fixedly connected to a rotating connection part (35). The upper end of the rotating connection part (35) is fixedly connected to an impeller assembly (5). There is a gap between the impeller assembly (5) and the filter heat dissipation assembly (32). The filter heat dissipation assembly (32) includes a filter assembly (321), a water inlet assembly (322) and a drain assembly (323). The drain assembly (323) is provided on one side of the water inlet assembly (322), and multiple filter assemblies (321) are provided on the other side of the water inlet assembly (322). Multiple filter components (321), water inlet components (322), and drainage components (323) are closed and combined to form a ring. A water inlet connector (324) is provided between the water inlet component (322) and the filter component (321). The water inlet connector (324) is also provided between the multiple filter components (321) arranged at intervals, and the water inlet connector (324) is also provided between the filter component (321) and the drainage component (323). A water inlet opening is provided on the inner side of the water inlet component (322), and a drain outlet (325) is provided on the inner side of the drainage component (323). A one-way exhaust valve (326) is provided on the inner side of the water inlet component (322), the filter component (321), and the drain outlet (325). The water inlet is connected to the inside of the middle sleeve component (33).

2. The motor with an integrated stator structure according to claim 1, characterized in that: The water inlet assembly (322) is equipped with a gas-liquid three-stage filtration integrated module (6). The gas-liquid three-stage filtration integrated module (6) includes a water inlet cylinder (61). The water inlet cylinder (61) is equipped with a water inlet gas-liquid pre-interception chamber (611), a flow guiding bubble diversion chamber (612), and a bubble guiding component (613). The water inlet cylinder (61) is equipped with a bubble interception component (7). The flow guiding bubble diversion chamber (612) is equipped with a microbubble capture module (6121). The bubble guiding component (613) is equipped with a microporous ceramic block (6131). One end of the microbubble capture module (6121) is connected to the water inlet gas-liquid pre-interception chamber (611), and the other end of the microbubble capture module (6121) is connected to the bubble guiding component (613).

3. The motor with an integrated stator structure according to claim 2, characterized in that: The bubble interception assembly (7) includes an upper cover plate (71) and a middle partition plate (75). The upper cover plate (71) and the middle partition plate (75) are arranged opposite to each other. The upper cover plate (71) is located above the middle partition plate (75). A spiral filter screen (73) is provided between the upper cover plate (71) and the middle partition plate (75). A ceramic filter plate (74) is provided above the middle partition plate (75). A middle vertical column (72) is arranged in a ring array on the surface of the ceramic filter plate (74). The upper end of the middle vertical column (72) is fixedly connected to the upper cover plate (71). A rotating interception assembly (8) is provided inside the middle vertical column (72) arranged in the ring array.

4. The motor with an integrated stator structure according to claim 3, characterized in that: The rotating interception assembly (8) includes an upper ceramic filter (81) and a lower ceramic filter (82). The upper ceramic filter (81) and the lower ceramic filter (82) are arranged opposite to each other. A plurality of rotating shafts are arranged in a ring array between the upper ceramic filter (81) and the lower ceramic filter (82). A circular filter (83) is rotatably mounted on the rotating shaft. The surfaces of the upper ceramic filter (81), the lower ceramic filter (82) and the circular filter (83) are made of ultrafiltration ceramic material.

5. The motor with an integrated stator structure according to claim 4, characterized in that: A cavitation filter device (3) is fixedly connected below the water pump middle layer fixing frame (2), an iron coil assembly (4) is fixedly connected below the cavitation filter device (3), a water pump cover (1) is fixedly installed above the water pump middle layer fixing frame (2), and an impeller assembly (5) is provided between the water pump cover (1) and the water pump middle layer fixing frame (2).

6. The motor with an integrated stator structure according to claim 5, characterized in that: The impeller assembly (5) includes a middle barrel, an impeller is fixed on the outside of the middle barrel, the lower end of the middle barrel is movably connected to the middle sleeve assembly (33), the rotating connection part (35) is fixedly connected to the impeller, and the bottom plate of the impeller is provided with multiple through-hole slots.

7. The motor with an integrated stator structure according to claim 6, characterized in that: The water pump cover (1) has an inlet (11) and an outlet (12) on its outer side. The inlet (11) and the outlet (12) are arranged vertically opposite each other. The inlet of the inlet (11) is connected to the middle barrel of the impeller assembly (5).

8. The motor with an integrated stator structure according to claim 7, characterized in that: The one-way exhaust valve (326) of the gas-liquid three-stage filtration integrated module (6) is connected to the inside of the flow-guiding bubble diversion chamber (612), and the microporous ceramic block (6131) is also provided inside the filter component (321) and the drainage component (323).

Images