New energy vehicle motor heat dissipation shell with built-in lubrication circulation channel

Abstract

The application provides a new energy automobile motor heat dissipation shell with built-in lubrication circulation channels, and relates to the technical field of automobile motor shells. The shell assembly is internally provided with a channel mechanism, and the channel mechanism is externally connected with a circulation assembly. The shell assembly comprises a shell mechanism and a bearing seat. The shell mechanism comprises a main shell, a front cover and a protective sleeve. The channel mechanism comprises a basic pipeline, a stator pipeline arranged around the stator and a bearing pipeline arranged around the bearing seat. The stator pipeline comprises a spiral oil channel connected with the main oil inlet channel. The side wall of the spiral oil channel towards the distribution oil channel is uniformly provided with first oil holes at equal intervals. The distribution oil channel is internally provided with an oil groove, and the side wall of the distribution oil channel away from the spiral oil channel is provided with second oil holes. The application can precisely lubricate, improve the reliability of the moving pair operation, and improve the heat management efficiency from the source.

Description

Technical Field

[0001] This invention relates to the field of automotive motor housing technology, and in particular to a heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel. Background Technology

[0002] With the rapid iteration of the new energy vehicle industry, market demands for vehicle range, power performance, and service life continue to rise. The core power component—the drive motor—is rapidly developing towards higher power density, higher speed, and greater integration. Currently, the power density of mainstream new energy vehicle drive motors has reached 3-5 kW / kg, with maximum speeds exceeding 20,000 rpm. This makes the motor's operating environment increasingly demanding, and heat dissipation and lubrication issues have become core bottlenecks restricting performance improvement and lifespan extension. Under high-speed, high-load conditions, the lubrication requirements for key moving parts such as motor bearings are upgraded to avoid wear and seizing caused by dry friction or boundary friction. Housing designs without dedicated lubrication channels cannot achieve precise fluid supply to key moving parts, leading to uneven lubrication and shortened lifespan.

[0003] Patent CN108718130A discloses a wound-tube type new energy vehicle motor housing, including a device body and a top cover. A shock-absorbing spring is located at the bottom of the device body, and a load-bearing plate is connected to the top of the spring. Sound-insulating cotton is located on the top surface of the load-bearing plate, and a telescopic rod is located on one side of the sound-insulating cotton along the inner wall of the device body. A limiting plate is welded to the top right side of the telescopic rod. A copper tube is located below the telescopic rod, and the top cover is connected above the copper tube at the top of the device body. A cooling fan is located on the surface of the top cover, and an air filter is located below the cooling fan at the bottom of the top cover. A temperature sensor is located on one side of the bottom of the air filter, and a microprocessor is located next to the temperature sensor. The device itself is equipped with a U-shaped copper tube, which absorbs heat through its thermal conductivity and cools the device through an internal water-cooling system, greatly improving the device's heat dissipation effect.

[0004] Most of the above-mentioned technical solutions and existing technologies treat heat dissipation and lubrication as independent systems. Heat dissipation relies solely on water cooling or air cooling, while lubrication relies on external pipelines. The two lack a synergistic mechanism, resulting in frictional heat not being efficiently removed from the source, thus limiting both heat dissipation and lubrication efficiency.

[0005] To address the aforementioned technical challenges, there is an urgent need to develop and apply heat dissipation housings for new energy vehicle motors with built-in lubrication circulation channels. This would not only improve the efficiency, lifespan, and stability of the motors but also promote the integrated upgrade of new energy vehicle electric drive systems, helping to resolve range anxiety and reliability issues. This has significant technical value and market implications. Summary of the Invention

[0006] To address the technical problem that most existing heat dissipation housings for new energy vehicle motors treat heat dissipation and lubrication as independent systems, with heat dissipation relying solely on water cooling or air cooling and lubrication relying on external pipelines, and the lack of a synergistic mechanism between the two, resulting in the inability to efficiently remove frictional heat from the source and limiting the efficiency of both heat dissipation and lubrication, this invention provides a heat dissipation housing for new energy vehicle motors with a built-in lubrication circulation channel.

[0007] The technical solutions provided by the embodiments of the present invention are as follows:

[0008] The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel provided in this embodiment of the invention includes: a housing assembly, a base mechanism for support provided under the housing assembly; a channel mechanism provided inside the housing assembly, and a circulation assembly externally connected to the channel mechanism;

[0009] The housing assembly includes a housing mechanism and a bearing housing; the housing mechanism includes a main housing, a front cover, and a protective sleeve;

[0010] The channel mechanism includes a base pipeline, a stator pipeline arranged around the stator, and a bearing pipeline arranged around the bearing housing.

[0011] The basic pipeline includes a main oil inlet channel and a main oil return channel arranged along the motor axis. The main oil inlet channel and the main oil return channel are located on the upper and lower sides inside the main housing and the front cover, respectively. The upper side of the main oil inlet channel is fixedly connected to an oil inlet port that penetrates the main housing and the protective sleeve, and the lower side of the main oil return channel is fixedly connected to an oil return port that penetrates the main housing and the protective sleeve.

[0012] The stator piping includes a spiral oil passage connecting to the main oil inlet. A U-shaped distribution oil passage is fixedly fitted inside the spiral oil passage. First oil holes are evenly spaced and penetrated through the sidewall of the spiral oil passage facing the distribution oil passage. An oil groove is formed inside the distribution oil passage. Second oil holes corresponding to the first oil holes are evenly spaced and penetrated through the sidewall of the distribution oil passage away from the spiral oil passage. A coating layer covering the stator is fixedly connected inside the distribution oil passage. Heat-conducting columns are evenly spaced and fixedly connected between the coating layer and the distribution oil passage.

[0013] The circulation component includes a gas-liquid mechanism and a sedimentation mechanism.

[0014] One end of the main shell is fixedly connected to the front cover via a flange, and the other end of the main shell is fixedly connected to the rear cover via a flange; a partition cover is fixedly clamped between the main shell and the rear cover; a protective sleeve is attached to the inner side of both the main shell and the front cover.

[0015] The bearing seats are fixedly connected to the end face of the front cover and the surface of the partition cover; the bearing seats on the front cover and the bearing seats on the partition cover are symmetrical.

[0016] Part of the first oil hole is fixedly connected to an oil drip tube facing the second oil hole.

[0017] A return oil mechanism is provided on part of the first oil hole; the return oil mechanism includes a telescopic tube located in a spiral oil passage, and bowl-shaped oil receiving trays are symmetrically fixed to both ends of the telescopic tube. A spring is fixedly connected between the two oil receiving trays and located inside the telescopic tube. A third oil hole is opened through the outer wall of the telescopic tube. A first suction tube connected to a second oil hole is fixedly connected to the inner wall of the telescopic tube. The first suction tube passes through the first oil hole. Second suction tubes are symmetrically arranged on both sides of the first suction tube and fixedly connected to the telescopic tube. The second suction tubes pass through the spiral oil passage.

[0018] The spiral oil passage is connected to auxiliary oil passages that are evenly arranged along the axial direction.

[0019] The bearing pipeline includes an annular oil passage sleeved on the outer wall of the bearing housing and an oil cover embedded in the inner wall of the bearing housing.

[0020] The upper side of the annular oil passage is fixedly connected to the main oil inlet passage, and the lower side of the annular oil passage is fixedly connected to the main oil return passage.

[0021] The oil cover has a U-shaped cross-section, and the oil cover and the annular oil passage are fixedly connected by an oil pipe with an embedded bearing seat at equal intervals; an annular coating ring is provided in the main return oil passage, and coating blocks adapted to fill the oil cover are fixedly embedded on the coating ring at equal intervals.

[0022] The base mechanism includes a base, with brackets fixedly connected to both sides of the upper surface of the base. The two brackets support the housing mechanism through fixed flanges, and support legs are fixedly connected to the four corners of the lower surface of the base.

[0023] The gas-liquid mechanism includes a gas-liquid cavity that penetrates the fixed base;

[0024] The lower middle part of the gas-liquid chamber is fixedly connected to an oil inlet pipe, and the two ends of the oil inlet pipe are symmetrical and both are connected to the gas-liquid chamber along the tangent; the oil return port passes through the base and is fixedly connected to the oil inlet pipe.

[0025] The upper part of the gas-liquid chamber is fixedly connected to an oil outlet pipe, and the oil outlet pipe is fixedly connected to an oil pump installed on the base.

[0026] The lower interior of the gas-liquid cavity is provided with a rotating plate that fits the gas-liquid cavity. Insert strips are fixedly embedded on the rotating plate at equal intervals, and the insert strips are fixedly connected to the gas-liquid cavity.

[0027] An air cage is fixedly inserted into the upper middle part of the rotary plate;

[0028] The lower interior of the gas-liquid cavity is fixedly connected with elastic sheets that are intersected with the rotating plate at equal intervals.

[0029] The upper end of the gas-liquid chamber is fastened with a top cover, and a venting component corresponding to the air cage is fixedly embedded in the middle of the surface of the top cover. A guide plate for connecting the venting component is fixedly connected to the lower surface of the top cover. An exhaust pump communicating with the venting component is fixedly connected to the upper surface of the top cover. Exhaust pipes that fit against the main shell are fixedly connected to both sides of the exhaust pump in the circumferential direction. The exhaust pump fits against the main shell.

[0030] The sedimentation mechanism includes an upper outward-expanding sedimentation tube, and the lower end of the gas-liquid chamber is fastened to the sedimentation tube;

[0031] The lower part of the sedimentation tube is equipped with a threaded strip and a sealing ring;

[0032] The upper inner side of the sedimentation tube is provided with vibrating beads at equal intervals, and an arc-shaped flexible rod is fixedly connected between the vibrating beads and the sedimentation tube.

[0033] The lower part of the sedimentation tube is fastened to a piston by a sealing ring. A plug thread adapted to be inserted into the sedimentation tube is fixedly connected to the middle of the lower inner wall of the piston. The plug thread is screwed to the sedimentation tube by a threaded strip. The upper end of the plug thread is ball-jointed to a magnetic bead adapted to be located in the middle of the sedimentation tube. A wrench groove is opened in the middle of the lower surface of the piston.

[0034] The beneficial effects of the technical solutions provided by the embodiments of the present invention include at least the following:

[0035] In this invention, precise lubrication of key moving parts is achieved through a second oil hole, a coating layer, an oil cover, and a coating block, ensuring stable oil film thickness at high speeds, completely avoiding dry friction and boundary friction, reducing bearing wear, reducing the failure rate of core moving parts of the motor, and improving the reliability of moving parts operation through precise lubrication.

[0036] The oil in the channel mechanism directly carries away the heat generated by friction pairs such as bearings and stators. Then, through oil circulation and coordinated heat exchange, a closed loop of absorption of frictional heat source and enhanced heat dissipation is achieved, improving heat dissipation efficiency, extending the full-load operation time of the motor, avoiding efficiency decay and insulation aging caused by high temperature, and improving thermal management efficiency by dissipating heat from the source.

[0037] The oil introduced from the oil inlet enters the spiral oil channel of the stator pipeline through the main oil inlet channel. When the oil moves in the spiral oil channel, it is introduced into the drip pipe through the first oil hole, and then discharged through the drip pipe directly into the second oil hole. The discharged oil wets the coating layer covering the stator, so that the oil is evenly attached to the stator surface and the overall lubrication of the stator surface is improved.

[0038] Under the compression and expansion of the telescopic tube, excess oil can be received and sucked up through the first and second suction tubes, allowing the oil to flow back into the spiral oil passage through the third oil hole, thus improving the oil circulation efficiency.

[0039] The oil return mechanism's suction function removes excess heat from the stator surface through oil circulation. Combined with the heat conduction effect of the heat conduction columns, it increases the contact probability between the oil and heat, thereby improving the speed and comprehensiveness of stator heat dissipation.

[0040] The oil is evenly applied to the bearing by the applicator block. In addition, the excess oil is returned from the lower oil pipe to the annular oil passage by gravity and the applicator block. Then, it circulates in the channel mechanism through the main return oil passage, thereby improving the uniformity of bearing lubrication and the speed of heat dissipation.

[0041] The flow is swirled by the guide plate, and centrifugal force is used to throw the denser oil to the cavity wall, while the less dense air gathers to the center of the cavity. An air cage is set in the middle of the gas-liquid cavity. The air is thrown into the air cage at the bottom of the gas-liquid cavity and then rises through the air cage. It is prevented from being sucked into the oil outlet pipe by the air cage. At the same time, it guides the oil to flow smoothly, prolongs the separation time, and can discharge the gas in the oil before it enters the circulation, thereby improving the smoothness of the oil circulation.

[0042] The gas-liquid mechanism is connected to the sedimentation mechanism below. The upper part of the sedimentation tube is expanded outward. Impurities in the oil are precipitated into the sedimentation tube under the action of gravity and centrifugal force. At the same time, the ball joint of the plug inserted into the lower part of the sedimentation tube is connected to a magnetic bead to adsorb magnetic impurities, thereby improving the quality of the circulating oil.

[0043] The embedded strips on the rotating plate and the elastic sheets uniformly connected on the inner wall of the gas-liquid chamber generate a small resonance when vibrating, which stirs the oil and accelerates the aggregation of bubbles. Combined with the tangential connection of the oil inlet pipe, the centrifugal force generated by the oil swirling and the bubble-breaking effect of the vibration improve the gas-liquid separation efficiency.

[0044] The vibration of the shell mechanism causes the vibrating beads installed inside the sedimentation tube to vibrate. Under the limiting action of the rod, the beads strike the upper inner wall of the sedimentation tube, thereby shaking off the impurities attached to the inner wall of the sedimentation tube, preventing the impurities from forming a continuous adhesion layer, and thus improving the impurity removal rate. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0046] Figure 1 This is a schematic diagram of the base mechanism of the heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0047] Figure 2 This is a schematic diagram of the housing mechanism of a new energy vehicle motor heat dissipation housing with a built-in lubrication circulation channel provided in an embodiment of the present invention.

[0048] Figure 3 A schematic diagram of the bearing housing of a new energy vehicle motor heat dissipation housing with a built-in lubrication circulation channel provided in an embodiment of the present invention.

[0049] Figure 4 This is a schematic diagram of the stator pipe structure of the heat dissipation housing of a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0050] Figure 5 This is a schematic diagram of the oil dripping pipe of the heat dissipation housing of a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0051] Figure 6 A schematic diagram showing the location of the oil return mechanism in the heat sink housing of a new energy vehicle motor with a built-in lubrication circulation channel, as provided in an embodiment of the present invention.

[0052] Figure 7 This is a schematic diagram of the oil return mechanism of the heat dissipation housing of a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0053] Figure 8 A schematic diagram of the bearing pipe structure of the heat dissipation housing of a new energy vehicle motor with a built-in lubrication circulation channel provided in an embodiment of the present invention.

[0054] Figure 9 A schematic diagram showing the position of the bearing pipe in the heat dissipation housing of a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0055] Figure 10 A schematic diagram of the circulation component of a new energy vehicle motor heat dissipation housing with a built-in lubrication circulation channel provided in an embodiment of the present invention.

[0056] Figure 11 This is a schematic diagram of the oil inlet pipe of the heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0057] Figure 12 This is a schematic diagram of the gas-liquid mechanism of the heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel, provided in an embodiment of the present invention.

[0058] Figure 13 A schematic diagram of the rotating plate of the heat dissipation housing of a new energy vehicle motor with built-in lubrication circulation channel provided in an embodiment of the present invention.

[0059] Figure 14A schematic diagram of the sedimentation mechanism of the heat dissipation housing of a new energy vehicle motor with a built-in lubrication circulation channel provided in an embodiment of the present invention.

[0060] Reference numerals: 1. Shell mechanism; 101. Main shell; 102. Front cover; 103. Rear cover; 104. Separator cover; 105. Protective sleeve; 2. Bearing seat; 3. Channel mechanism; 301. Oil inlet; 302. Main oil inlet channel; 303. Oil return port; 304. Main oil return channel; 305. Spiral oil channel; 306. Distribution oil channel; 307. First oil hole; 308. Oil groove; 309. Second oil hole; 310. Shaft through oil channel; 311. Coating layer; 312. Heat-conducting column; 313. Ring oil channel; 314. Oil cover; 315. Oil pipe; 316. Coating ring; 317. Coating block; 4. Oil return mechanism; 401. Drip pipe; 402. Telescopic pipe; 403. Oil receiving tray; 404. 5. Spring; 405. Third oil hole; 406. First suction tube; 407. Second suction tube; 5. Gas-liquid mechanism; 501. Gas-liquid chamber; 502. Oil inlet pipe; 503. Oil outlet pipe; 504. Oil pump; 505. Rotary plate; 506. Insert strip; 507. Air cage; 508. Elastic sheet; 509. Top cover; 510. Vent component; 511. Air guide plate; 512. Exhaust pump; 513. Exhaust pipe; 6. Sedimentation mechanism; 601. Sedimentation tube; 602. Threaded strip; 603. Sealing ring; 604. Vibrating ball; 605. Tough rod; 606. Piston; 607. Plug; 608. Magnetic bead; 609. Wrench groove; 7. Base mechanism; 701. Base; 702. Bracket; 703. Support leg.

[0061] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0062] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0063] like Figures 1 to 14 As shown, an embodiment of the present invention provides a heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel, comprising: a housing assembly, a base mechanism 7 for support provided under the housing assembly; a channel mechanism 3 provided inside the housing assembly, and a circulation assembly connected to the channel mechanism 3 externally;

[0064] The housing assembly includes a housing mechanism 1 and a bearing housing 2; the housing mechanism 1 includes a main housing 101, a front cover 102 and a protective sleeve 105;

[0065] The channel mechanism 3 includes a base pipeline, a stator pipeline arranged around the stator, and a bearing pipeline arranged around the bearing housing 2;

[0066] The basic pipeline includes a main oil inlet channel 302 and a main oil return channel 304 arranged along the motor axis. The main oil inlet channel 302 and the main oil return channel 304 are located on the upper and lower sides of the main housing 101 and the front cover 102, respectively. The main oil inlet channel 302 is on the upper side and the main oil return channel 304 is on the lower side, using gravity to assist oil return. The upper side of the main oil inlet channel 302 is fixedly connected to an oil inlet port 301 that penetrates the main housing 101 and the protective sleeve 105. The lower side of the main oil return channel 304 is fixedly connected to an oil return port 303 that penetrates the main housing 101 and the protective sleeve 105.

[0067] The stator piping includes a spiral oil passage 305 that connects to the main oil inlet passage 302. A U-shaped distribution oil passage 306 is fixedly connected inside the spiral oil passage 305. First oil holes 307 are evenly and equidistantly opened through the side wall of the spiral oil passage 305 facing the distribution oil passage 306. An oil groove 308 is opened inside the diameter of the distribution oil passage 306. Second oil holes 309 corresponding to the first oil holes 307 are evenly and equidistantly opened through the side wall of the distribution oil passage 306 away from the spiral oil passage 305. A coating layer 311 covering the stator is fixedly connected inside the diameter of the distribution oil passage 306. Heat-conducting columns 312 are evenly and equidistantly fixedly connected between the coating layer 311 and the distribution oil passage 306.

[0068] The circulation assembly includes a gas-liquid mechanism 5 and a sedimentation mechanism 6.

[0069] In one possible implementation, one end of the main shell 101 is fixedly connected to the front cover 102 via a flange, and the other end of the main shell 101 is fixedly connected to the rear cover 103 via a flange; a partition cover 104 is fixedly clamped between the main shell 101 and the rear cover 103; a protective sleeve 105 is attached to the inner side of the main shell 101 and the front cover 102.

[0070] The bearing seat 2 is fixedly connected to the end face of the front cover 102 and the surface of the partition cover 104; the bearing seat 2 on the front cover 102 and the bearing seat 2 on the partition cover 104 are symmetrical.

[0071] In one possible implementation, a portion of the first oil hole 307 is fixedly connected to an oil drip tube 401 facing the second oil hole 309.

[0072] In one possible implementation, a return oil mechanism 4 is provided on some of the first oil holes 307, and the return oil mechanism 4 is mostly located at the lower part of the stator pipeline. The return oil mechanism 4 includes a telescopic tube 402 located in the spiral oil passage 305. The two ends of the telescopic tube 402 are symmetrically fixed with bowl-shaped oil receiving trays 403. The radii of the telescopic tube 402 and the oil receiving trays 403 are both smaller than the inner diameter of the spiral oil passage 305. A spring 404 located in the telescopic tube 402 is fixedly connected between the two oil receiving trays 403. A third oil hole 405 is opened through the outer diameter of the telescopic tube 402. A first suction tube 406 connected to the second oil hole 309 is fixedly connected to the inner diameter of the telescopic tube 402. The first suction tube 406 passes through the first oil hole 307. Second suction tubes 407 are symmetrically arranged on both sides of the first suction tube 406 and fixedly connected to the telescopic tube 402. The second suction tubes 407 pass through the spiral oil passage 305.

[0073] In one possible implementation, the spiral oil passage 305 is connected to an auxiliary oil passage 310 that is evenly arranged along the axial direction, further connecting the spiral oil passage 305 in series to avoid blockage leading to heat dissipation failure.

[0074] In one possible implementation, the bearing pipeline includes an annular oil passage 313 that sleeves the outer wall of the bearing housing 2 and an oil cover 314 that is embedded in the inner wall of the bearing housing 2.

[0075] The upper side of the annular oil passage 313 is fixedly connected to the main oil inlet passage 302, and the lower side of the annular oil passage 313 is fixedly connected to the main oil return passage 304.

[0076] The cross-section of the oil cover 314 is U-shaped. The oil cover 314 and the annular oil passage 313 are connected by an oil pipe 315 that is embedded in the bearing seat 2. The main return oil passage 304 is provided with an annular coating ring 316. The coating ring 316 is fixedly embedded with a coating block 317 that is adapted to fill the oil cover 314.

[0077] In one possible implementation, the base mechanism 7 includes a base 701, with brackets 702 fixedly connected to both sides of the upper surface of the base 701. The two brackets 702 support the housing mechanism 1 through fixed flanges, and legs 703 are fixedly connected to the four corners of the lower surface of the base 701.

[0078] In one possible implementation, the gas-liquid mechanism 5 includes a gas-liquid cavity 501 that penetrates the fixed base 701.

[0079] The lower middle part of the gas-liquid chamber 501 is fixedly connected to the oil inlet pipe 502. The two ends of the oil inlet pipe 502 are symmetrical and both are connected to the gas-liquid chamber 501 along the tangent. The oil return port 303 passes through the base 701 and is fixedly connected to the oil inlet pipe 502.

[0080] An oil outlet pipe 503 is fixedly connected to the upper middle part of the gas-liquid chamber 501, and an oil pump 504 is fixedly connected to the oil outlet pipe 503 on the base 701.

[0081] A rotary plate 505 is provided in the lower interior of the gas-liquid cavity 501 to fit the gas-liquid cavity 501. An insert strip 506 is fixedly embedded on the rotary plate 505 at equal intervals. The insert strip 506 is made of tough material and is fixedly connected to the gas-liquid cavity 501.

[0082] An air cage 507 is fixedly inserted into the upper middle part of the rotary plate 505, and the upper end of the air cage 507 is higher than the oil outlet pipe 503.

[0083] The lower interior of the gas-liquid cavity 501 is fixedly connected with elastic plates 508 that are intersected with the rotating plate 505.

[0084] In one possible implementation, a top cover 509 is fastened to the upper end of the gas-liquid chamber 501, and a venting element 510 corresponding to the air cage 507 is fixedly embedded in the middle of the surface of the top cover 509. A guide plate 511 connecting the venting element 510 is fixedly connected to the lower surface of the top cover 509. An exhaust pump 512 communicating with the venting element 510 is fixedly connected to the upper surface of the top cover 509. Exhaust pipes 513 that are attached to the main shell 101 are fixedly connected to both sides of the exhaust pump 512 in the circumferential direction. The exhaust pump 512 is attached to the main shell 101.

[0085] In one possible implementation, the sedimentation mechanism 6 includes an upper outwardly expanding sedimentation tube 601, and the lower end of the gas-liquid chamber 501 is fastened to the sedimentation tube 601.

[0086] The lower part of the sedimentation tube 601 is equipped with a threaded strip 602 and a sealing ring 603;

[0087] Vibrating beads 604 are evenly and equidistantly arranged on the upper inner side of the sedimentation tube 601, and an arc-shaped flexible rod 605 is fixedly connected between the vibrating beads 604 and the sedimentation tube 601.

[0088] A piston 606 is fastened to the lower part of the sedimentation tube 601 by a sealing ring 603. A plug 607 adapted to be inserted into the sedimentation tube 601 is fixedly connected to the middle of the lower inner wall of the piston 606. The plug 607 is screwed to the sedimentation tube 601 by a threaded strip 602. A magnetic bead 608 adapted to be located in the middle of the sedimentation tube 601 is connected to the upper end of the plug 607 by a ball joint. The magnetic bead 608 is made of magnetic material. A wrench groove 609 is opened in the middle of the lower surface of the piston 606.

[0089] The beneficial effects of the technical solutions provided by the embodiments of the present invention include at least the following:

[0090] In this invention, a channel mechanism 3 is provided inside the housing assembly. Oil enters the main oil inlet 302 through the oil inlet 301, lubricates and cools the stator through the stator pipe, and lubricates and cools the bearing through the bearing pipe. The channel mechanism 3 supplies oil in priority zones. Precise oiling and lubrication of key moving parts are achieved through the second oil hole 309, the coating layer 311, the oil cover 314, and the coating block 317. This ensures stable oil film thickness at high speeds, completely avoids dry friction and boundary friction, reduces bearing wear, reduces the failure rate of the core moving parts of the motor, and improves the reliability of the moving parts operation through precise lubrication.

[0091] The oil in channel mechanism 3 directly carries away the heat generated by friction pairs such as bearings and stators. Then, through oil circulation and coordinated heat exchange, a closed loop of absorption of frictional heat source and enhanced heat dissipation is achieved, improving heat dissipation efficiency, extending the full-load operation time of the motor, avoiding efficiency decay and insulation aging caused by high temperature, and improving thermal management efficiency from the source of heat dissipation.

[0092] The oil introduced from the oil inlet 301 enters the spiral oil passage 305 of the stator pipeline through the main oil inlet 302. When the oil moves in the spiral oil passage 305, it is introduced into the drip pipe 401 through the first oil hole 307, and then discharged through the second oil hole 309 directly opposite the drip pipe 401. The discharged oil wets the coating layer 311 covering the stator, so that the oil is evenly attached to the stator surface and the overall lubrication of the stator surface is improved.

[0093] Oil continuously seeps out through the second oil hole 309. Under the action of gravity, excess oil accumulates at the bottom of the coating layer 311. The oil return mechanism 4, which is located at the bottom of the spiral oil channel 305, works in conjunction with oil suction. When the oil circulates in the spiral oil channel 305, it pushes the oil receiving plate 403 irregularly, causing the telescopic tube 402 to contract under the support of the spring 404. This changes the internal volume of the telescopic tube 402. Under the compression and expansion of the telescopic tube 402, the excess accumulated oil can be received and sucked through the first suction tube 406 and the second suction tube 407. This allows the oil to flow back into the spiral oil channel 305 through the third oil hole 405, improving the oil circulation efficiency.

[0094] The oil return mechanism 4 can remove excess heat from the stator surface through oil circulation. In addition, the heat conduction of the heat conduction column 312 can increase the contact rate between the oil and heat, thereby improving the speed and comprehensiveness of stator heat dissipation.

[0095] The annular oil passage 313, which connects to the main oil inlet passage 302 and the main oil return passage 304, continuously supplies oil to the bearing through the oil pipe 315. Correspondingly, the oil is evenly applied to the bearing by the applicator block 317. In addition, the excess oil is returned from the lower oil pipe 315 to the annular oil passage 313 by gravity and the applicator block 317. Then, it circulates in the channel mechanism 3 through the main oil return passage 304, thereby improving the uniformity of bearing lubrication and the speed of heat dissipation.

[0096] The main return oil channel 304 is connected to the return oil port 303 to discharge high-temperature oil into the circulation component. The oil inlet pipe 502 is tangentially connected to the gas-liquid chamber 501. After the oil enters the gas-liquid chamber 501 tangentially, it is guided by the swirl plate 505 to form a swirling flow. Centrifugal force is used to throw the denser oil towards the chamber wall, while the less dense air gathers to the center of the chamber. An air cage 507 is provided in the middle of the gas-liquid chamber 501. The air is thrown into the air cage 507 at the bottom of the gas-liquid chamber 501 and rises through the air cage 507. Under the obstruction of the air cage 507, it is prevented from being sucked into the oil outlet pipe 503. At the same time, it guides the oil to flow smoothly, prolongs the separation time, and can discharge the gas in the oil before it enters the circulation, thereby improving the smoothness of the oil circulation.

[0097] The gas-liquid mechanism 5 is connected to the sedimentation mechanism 6 below. The upper part of the sedimentation tube 601 is expanded outward. Impurities in the oil are precipitated into the sedimentation tube 601 under the action of gravity and centrifugal force. At the same time, a magnetic bead 608 is connected to the plug 607 inserted into the lower part of the sedimentation tube 601 by a ball joint to adsorb magnetic impurities, thereby improving the quality of the circulating oil.

[0098] Tiny bubbles in the oil are easily bound by the surface tension of the oil film and are difficult to float and separate naturally. The circulation component is connected to the housing mechanism 1 through the base mechanism 7. During the operation of the motor, the housing mechanism 1 will drive the circulation component to vibrate. The high-frequency vibration transmitted by the housing mechanism 1 can break the oil film tension, allowing the tiny bubbles to aggregate into large bubbles, which greatly increases the floating speed of the bubbles. The insert 506 embedded in the rotary plate 505 and the elastic sheet 508 uniformly connected on the inner wall of the gas-liquid chamber 501 generate a small resonance when vibrating, which stirs the oil and accelerates the aggregation of bubbles. With the tangential connection of the oil inlet pipe 502, the centrifugal force generated by the oil swirling and the bubble-breaking effect of the vibration improve the gas-liquid separation efficiency.

[0099] The vibration of the housing mechanism 1 causes the vibrating beads 604 installed inside the sedimentation tube 601 to vibrate. Under the limiting action of the rod 605, the beads strike the upper inner wall of the sedimentation tube 601, thereby shaking off the impurities attached to the inner wall of the sedimentation tube 601, preventing the impurities from forming a continuous adhesion layer, and thus improving the impurity removal rate.

[0100] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0101] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel, characterized in that, include: A housing assembly, with a base mechanism for support provided below the housing assembly; a channel mechanism is provided inside the housing assembly, and a circulation assembly is externally connected to the channel mechanism; The housing assembly includes a housing mechanism and a bearing housing; the housing mechanism includes a main housing, a front cover, and a protective sleeve; The channel mechanism includes a base pipeline, a stator pipeline arranged around the stator, and a bearing pipeline arranged around the bearing housing. The basic pipeline includes a main oil inlet channel and a main oil return channel arranged along the motor axis. The main oil inlet channel and the main oil return channel are located on the upper and lower sides inside the main housing and the front cover, respectively. The upper side of the main oil inlet channel is fixedly connected to an oil inlet port that penetrates the main housing and the protective sleeve, and the lower side of the main oil return channel is fixedly connected to an oil return port that penetrates the main housing and the protective sleeve. The stator piping includes a spiral oil passage connecting to the main oil inlet. A U-shaped distribution oil passage is fixedly fitted inside the spiral oil passage. First oil holes are evenly spaced and penetrated through the sidewall of the spiral oil passage facing the distribution oil passage. An oil groove is formed inside the distribution oil passage. Second oil holes corresponding to the first oil holes are evenly spaced and penetrated through the sidewall of the distribution oil passage away from the spiral oil passage. A coating layer covering the stator is fixedly connected inside the distribution oil passage. Heat-conducting columns are evenly spaced and fixedly connected between the coating layer and the distribution oil passage. The circulation component includes a gas-liquid mechanism and a sedimentation mechanism; The base mechanism includes a base; The gas-liquid mechanism includes a gas-liquid cavity that penetrates the fixed base; The lower part of the gas-liquid chamber is fixedly connected to an oil inlet pipe, and the two ends of the oil inlet pipe are symmetrical and both are connected to the gas-liquid chamber along the tangent; the oil return port passes through the base and is fixedly connected to the oil inlet pipe. The upper part of the gas-liquid chamber is fixedly connected to an oil outlet pipe, and the oil outlet pipe is fixedly connected to an oil pump installed on the base. The lower interior of the gas-liquid cavity is provided with a rotating plate that fits the gas-liquid cavity. Insert strips are fixedly embedded on the rotating plate at equal intervals, and the insert strips are fixedly connected to the gas-liquid cavity. An air cage is fixedly inserted into the upper middle part of the rotary plate; The lower interior of the gas-liquid cavity is fixedly connected with elastic sheets that are intersected with the rotating plate at equal intervals. The sedimentation mechanism includes an upper outward-expanding sedimentation tube, and the lower end of the gas-liquid chamber is fastened to the sedimentation tube; The lower part of the sedimentation tube is equipped with a threaded strip and a sealing ring; The upper inner side of the sedimentation tube is provided with vibrating beads at equal intervals, and an arc-shaped flexible rod is fixedly connected between the vibrating beads and the sedimentation tube. The lower part of the sedimentation tube is fastened to a piston by a sealing ring. A plug thread adapted to be inserted into the sedimentation tube is fixedly connected to the middle of the lower inner wall of the piston. The plug thread is screwed to the sedimentation tube by a threaded strip. The upper end of the plug thread is ball-jointed to a magnetic bead adapted to be located in the middle of the sedimentation tube. A wrench groove is opened in the middle of the lower surface of the piston.

2. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 1, characterized in that, One end of the main shell is fixedly connected to the front cover via a flange, and the other end of the main shell is fixedly connected to the rear cover via a flange; a partition cover is fixedly clamped between the main shell and the rear cover; a protective sleeve is attached to the inner side of both the main shell and the front cover. The bearing seats are fixedly connected to the end face of the front cover and the surface of the partition cover; the bearing seats on the front cover and the bearing seats on the partition cover are symmetrical.

3. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 1, characterized in that, Part of the first oil hole is fixedly connected to an oil drip tube facing the second oil hole.

4. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 3, characterized in that, A return oil mechanism is provided on part of the first oil hole; the return oil mechanism includes a telescopic tube located in a spiral oil passage, and bowl-shaped oil receiving trays are symmetrically fixed to both ends of the telescopic tube. A spring is fixedly connected between the two oil receiving trays and located inside the telescopic tube. A third oil hole is opened through the outer wall of the telescopic tube. A first suction tube connected to a second oil hole is fixedly connected to the inner wall of the telescopic tube. The first suction tube passes through the first oil hole. Second suction tubes are symmetrically arranged on both sides of the first suction tube and fixedly connected to the telescopic tube. The second suction tubes pass through the spiral oil passage.

5. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 1, characterized in that, The spiral oil passage is connected to auxiliary oil passages that are evenly arranged along the axial direction.

6. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 1, characterized in that, The bearing pipeline includes an annular oil passage sleeved on the outer wall of the bearing housing and an oil cover embedded in the inner wall of the bearing housing. The upper side of the annular oil passage is fixedly connected to the main oil inlet passage, and the lower side of the annular oil passage is fixedly connected to the main oil return passage. The oil cover has a U-shaped cross-section, and the oil cover and the annular oil passage are fixedly connected by an oil pipe with an embedded bearing seat at equal intervals; an annular coating ring is provided in the main return oil passage, and coating blocks adapted to fill the oil cover are fixedly embedded on the coating ring at equal intervals.

7. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 1, characterized in that, The upper surface of the base is fixedly connected to two brackets on both sides, and the two brackets support the housing mechanism through fixed flanges. The lower surface of the base is fixedly connected to four legs at the four corners.

8. The heat dissipation housing for a new energy vehicle motor with a built-in lubrication circulation channel according to claim 7, characterized in that, The upper end of the gas-liquid chamber is fastened with a top cover, and a venting component corresponding to the air cage is fixedly embedded in the middle of the surface of the top cover. A guide plate for connecting the venting component is fixedly connected to the lower surface of the top cover. An exhaust pump communicating with the venting component is fixedly connected to the upper surface of the top cover. Exhaust pipes that fit against the main shell are fixedly connected to both sides of the exhaust pump in the circumferential direction. The exhaust pump fits against the main shell.

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