An aluminum alloy shell casting for an electric motor of a new energy vehicle

Abstract

The present invention relates to the technical field of automotive motor housing castings, specifically an aluminum alloy housing casting for a motor of a new energy vehicle, including four groups of aerodynamic propulsion mechanisms arranged in an air extraction and pressure reduction mechanism, a tail-end commutation mechanism arranged at one end of the air extraction and pressure reduction mechanism, and a head-end casting mechanism arranged at the other end of the air extraction and pressure reduction mechanism; the air extraction and pressure reduction mechanism includes two main side wing plates and two auxiliary side wing plates, and two air intake grooves are provided on the inner wall of the main side wing plate. By setting the existing pump housing structure with a straight-through structure into an air extraction and pressure reduction mechanism, and arranging four evenly distributed groups of aerodynamic propulsion mechanisms inside the air extraction and pressure reduction mechanism, when the rotor rotates at a high speed and causes instantaneous high-pressure airflow to appear in the inner cavity of the pump housing, the high-pressure airflow will be transferred through the four groups of aerodynamic propulsion mechanisms to the inside of the two main side wing plates and the two auxiliary side wing plates, and finally the airflow with pressure relief can avoid the phenomenon of motor overload caused by excessive pressure difference during release.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive motor housing castings, and specifically to an aluminum alloy housing casting for a motor of a new energy vehicle. Background Art

[0002] The motors in new energy vehicles can be divided into various types such as AC motors, DC motors, AC / DC dual-purpose motors, control motors (including stepping, tachometric, servo, synchro, etc.), switched reluctance motors, and signal motors, and the housing is the most important part of the motor.

[0003] During the actual operation of new energy vehicles, affected by the pre-cast housing, the heat dissipation, grounding, and windings of the motor will all be affected. Although the existing motor housings are more mature in optimizing the above problems, different from the problems existing in the above housings, there are still the following problems: When the rotor inside the motor rotates at high speed and sucks the outside air into the pump housing, the cavity between the rotor and the pump housing will generate instantaneous high pressure, and the airflow generated by the instantaneous high pressure will affect the output power and efficiency of the motor, and seriously affect the safety of the rotor operation.

[0004] In view of this, an aluminum alloy housing casting for a motor of a new energy vehicle is designed in this application to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] For this reason, the technical solution adopted by the present invention is as follows:

[0007] An aluminum alloy housing casting for a motor of a new energy vehicle, including an air extraction and pressure reduction mechanism, four aerodynamic propulsion mechanisms arranged inside the air extraction and pressure reduction mechanism, a tail-end commutation mechanism arranged at one end of the air extraction and pressure reduction mechanism, and a head-end casting mechanism arranged at the other end of the air extraction and pressure reduction mechanism; the air extraction and pressure reduction mechanism includes two main side wing plates and two secondary side wing plates, two air intake grooves are opened on the inner wall of the secondary side wing plates, and two air collecting grooves are opened on the inner wall of the main side wing plates; the aerodynamic propulsion mechanism includes a stator gasket arranged inside the adjacent main side wing plate and secondary side wing plate, a protective cover installed in the middle of the stator gasket, and a pressure push rod movably installed inside the protective cover, and an air window is opened on the outer wall of the protective cover; the tail-end commutation mechanism includes a housing and a return flow backing plate arranged at one end of the two main side wing plates and two secondary side wing plates; the head-end casting mechanism includes a cover arranged at the other end of the two main side wing plates and two secondary side wing plates, a shaft sleeve arranged inside the cover, and a base arranged inside the cover.

[0008] In a preferred embodiment, the present invention can be further configured as follows: The tail-end commutation mechanism further includes a limit end installed in the middle of the outer shell, a base arranged inside the return backing plate, and a ventilation component arranged inside the limit end and the base;

[0009] The ventilation component includes a gasket installed inside the base, a cold air input component movably installed inside the gasket, a pressure relief gasket disk movably installed outside the tube body of the cold air input component, two guide rods installed at the inner end of the pressure relief gasket disk, and a plug installed on the two guide rods, and the plug is adapted to penetrate through the tube body inside the cold air input component;

[0010] The outer end of the pressure relief gasket disk is connected with a second tension spring, and the other end of the second tension spring is connected to the limit end.

[0011] In a preferred embodiment, the present invention can be further configured as follows: The aerodynamic propulsion mechanism further includes a gasket installed in the hole on the inner wall of the stator gasket, a plug column arranged inside the gasket, a first tension spring connected to the gasket, and the other end of the first tension spring is connected to the plug column;

[0012] The inner cavity of the stator gasket is provided with two symmetrically distributed propulsion rods;

[0013] The propulsion rod is composed of a plurality of trapezoidal pads and beam rods, and a clamping plate is installed at the outer end of the beam rod;

[0014] The outer end of the pressure push rod is installed inside the clamping plate.

[0015] In a preferred embodiment, the present invention can be further configured as follows: The air extraction and pressure reduction mechanism further includes four groups of first conduits installed on two secondary wing plates and four groups of external connecting pipes connected to four of the first conduits;

[0016] The tail-end commutation mechanism further includes four second conduits;

[0017] The head-end casting mechanism further includes four third conduits;

[0018] Four of the external connecting pipes are connected to the four second conduits, and the other four external connecting pipes are connected to the four third conduits.

[0019] In a preferred embodiment, the present invention can be further configured as follows: The pressure relief gasket disk is provided with a plurality of evenly distributed insertion blocks at one end away from the two guide rods, and the insertion blocks on the pressure relief gasket disk are adapted to penetrate through the inside of the limit end.

[0020] In a preferred embodiment, the present invention can be further configured as follows: The air extraction and pressure reduction mechanism further includes four groups of first anti-collision plates;

[0021] The tail-end commutation mechanism further includes four groups of second anti-collision plates;

[0022] The head casting mechanism further includes four groups of third anti-collision plates;

[0023] The first anti-collision plate, the second anti-collision plate, and the third anti-collision plate are all made of stainless steel material, and evenly distributed reinforcing pads are provided on the first anti-collision plate, and plugs are provided in the holes inside the reinforcing pads.

[0024] In a preferred example of the present invention, it can be further configured that: the first tension spring is integrally in a T-shaped structure, and the end of the first tension spring penetrating into the inner cavity of the stator gasket is provided with a limit card slot adapted to the trapezoidal pad, and a sealing ring is provided on the stud at the other end of the first tension spring.

[0025] In a preferred example of the present invention, it can be further configured that: a cylindrical hole is provided inside the protective cover, the stud at the inner end of the pressure push rod is adapted to fit inside the cylindrical hole, and the cylindrical hole communicates with the air window.

[0026] In a preferred example of the present invention, it can be further configured that: a cavity is provided inside the return pad, and the limit end is adapted to penetrate into the cavity inside the return pad.

[0027] In a preferred example of the present invention, it can be further configured that: the cold air input part is composed of a circular pad and a pipe, and a chute adapted to the end plates on both sides of the plug is provided at the port where the pipe penetrates to the inner side of the gasket;

[0028] A through hole with a gradually changing aperture is provided at the inner end of the pipe.

[0029] By adopting the above technical solutions, the beneficial effects obtained by the present invention are:

[0030] 1. In the present invention, the existing pump shell structure with a straight-through structure is set into an air extraction and pressure reduction mechanism, and four groups of aerodynamic propulsion mechanisms are evenly arranged inside the air extraction and pressure reduction mechanism. When the rotor rotates at a high speed and causes instantaneous high-pressure air flow in the inner cavity of the pump shell, the high-pressure air flow will be transferred to the inside of the two main side wings and the two sub-side wings through the four groups of aerodynamic propulsion mechanisms. Finally, the air flow released after pressure reduction can avoid the phenomenon of motor overload caused by excessive pressure difference during the release process.

[0031] 2. In the present invention, a head casting mechanism is provided at the tail of the air extraction and pressure reduction mechanism. When the high-pressure air flow released into the four side wings enters the inner cavity of the return pad, under the push of air pressure, the cold air input part will be pressed and extend towards the inner cavity of the pump shell until the cold air input part is instantaneously connected to the inner cavity of the pump shell. When the air flow in the inner cavity of the return pad is released outward from the limit end, the cold air input into the inner cavity of the pump shell will also be instantaneously cut off, ensuring the balanced pressure reduction of the rotor inside the motor while guaranteeing the safe operation of the rotor.

[0032] 3. In the present invention, at the moment when the high-pressure air flow inside the pump housing is released, the cold air released along the cold air input member can enter from the tail ends of the rotor and the stator, and finally carry the high temperature in the inner cavity of the pump housing to the head casting mechanism. The heat-exchanged air flow will enter through the gap on the inner wall of the cover, and under the cooperation of the conduit and the outer connection pipe, the heat-exchanged air flow will be regularly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram when the present invention is in use;

[0034] Figure 2 is a schematic diagram of the head casting mechanism of the present invention;

[0035] Figure 3 is a schematic diagram of the tail-end commutation mechanism of the present invention;

[0036] Figure 4 is a schematic diagram of the air exchange component of the present invention;

[0037] Figure 5 is a schematic diagram of the air extraction and pressure reduction mechanism of the present invention;

[0038] Figure 6 For the present invention Figure 5 explosion schematic diagram;

[0039] Figure 7 is a partial cross-sectional schematic diagram of the secondary wing plate of the present invention;

[0040] Figure 8 is a partial cross-sectional schematic diagram of the main wing plate of the present invention;

[0041] Figure 9 is a schematic diagram of the aerodynamic propulsion mechanism of the present invention;

[0042] Figure 10 For the present invention Figure 9 explosion schematic diagram.

[0043] Reference numerals:

[0044] 100, air extraction and pressure reduction mechanism; 110, main wing plate; 120, secondary wing plate; 130, first anti-collision plate; 131, reinforcing backing plate; 140, plug; 150, first conduit; 160, outer connection pipe; 170, air intake groove; 180, air collecting groove;

[0045] 200, aerodynamic propulsion mechanism; 210, stator gasket; 220, gasket; 230, protective cover; 240, propulsion rod; 250, pressure push rod; 260, clamping plate; 270, first tension spring; 280, plug post; 290, air window;

[0046] 300. Tail-end commutation mechanism; 310. Housing; 320. Return current backing plate; 330. Second anti-collision plate; 340. Second conduit; 350. Limit end; 360. Base; 370. Ventilation component; 371. Cushion; 372. Cold air input component; 373. Pressure release cushion plate; 374. Second tension spring; 375. Guide rod; 376. Plug

[0047] 400. Head-end casting mechanism; 410. Cover; 420. Third anti-collision plate; 430. Bushing; 440. Base; 450. Third conduit. Detailed implementation mode

[0048] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the specific implementation modes and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0049] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0050] Some embodiments of the present invention provided with an aluminum alloy housing casting for a motor of a new energy vehicle will be described below with reference to the accompanying drawings.

[0051] Embodiment 1:

[0052] Combined Figures 1 to 10 As shown, an aluminum alloy housing casting for a motor of a new energy vehicle provided by the present invention includes an air extraction and pressure reduction mechanism 100, four aerodynamic propulsion mechanisms 200 arranged in the air extraction and pressure reduction mechanism 100, a tail-end commutation mechanism 300 arranged at one end of the air extraction and pressure reduction mechanism 100, and a head-end casting mechanism 400 arranged at the other end of the air extraction and pressure reduction mechanism 100. The four aerodynamic propulsion mechanisms 200 are used to provide a stability enhancement platform for the stator and provide a pressure relief channel for the instantaneous high-pressure air flow in the pump housing cavity. The air extraction and pressure reduction mechanism 100 is used to provide an effective evacuation channel for the pressure-relieved air flow and the air flow after subsequent heat exchange. The tail-end commutation mechanism 300 is used to evacuate the heat exchange air flow and at the same time can input the cooling air flow into the pump housing cavity. The head-end casting mechanism 400 is used to regularly guide and output the hot air in the pump housing cavity.

[0053] The air extraction and pressure reduction mechanism 100 includes two main wing plates 110 and two sub-wing plates 120. Two air intake grooves 170 are provided on the inner wall of the sub-wing plate 120, and two air collecting grooves 180 are provided on the inner wall of the main wing plate 110;

[0054] The aerodynamic propulsion mechanism 200 includes a stator gasket 210 disposed inside the adjacent main side wing plates 110 and auxiliary side wing plates 120, a protective cover 230 installed in the middle of the stator gasket 210, a pressure push rod 250 movably installed inside the protective cover 230, an air window 290 opened on the outer wall of the protective cover 230, a gasket 220 installed in the hole on the inner wall of the stator gasket 210, a plug column 280 disposed inside the gasket 220, a first tension spring 270 connected to the gasket 220, and the other end of the first tension spring 270 is connected to the plug column 280;

[0055] Two symmetrically distributed propulsion rods 240 are arranged in the inner cavity of the stator gasket 210;

[0056] The propulsion rod 240 is composed of a plurality of trapezoidal pads and beam rods, and a clamping plate 260 is installed at the outer end of the beam rod;

[0057] The outer end of the pressure push rod 250 is installed inside the clamping plate 260;

[0058] The tail-end commutation mechanism 300 includes a housing 310 and a return flow backing plate 320 disposed at one end of the two main side wing plates 110 and the two auxiliary side wing plates 120, a limit end 350 installed in the middle of the housing 310, a base 360 disposed inside the return flow backing plate 320, and a ventilation component 370 disposed inside the limit end 350 and the base 360;

[0059] The head-end casting mechanism 400 includes a cover 410 disposed at the other end of the two main side wing plates 110 and the two auxiliary side wing plates 120, a bushing 430 disposed inside the cover 410, and a base 440 disposed inside the cover 410;

[0060] The ventilation component 370 includes a gasket 371 installed inside the base 360, a cold air input member 372 movably installed inside the gasket 371, a pressure release gasket disc 373 movably installed outside the tube body of the cold air input member 372, two guide rods 375 installed at the inner end of the pressure release gasket disc 373, and a plug 376 installed on the two guide rods 375, and the plug 376 is adapted to penetrate through the tube body inside the cold air input member 372;

[0061] The outer end of the pressure release gasket disc 373 is connected to a second tension spring 374, and the other end of the second tension spring 374 is connected to the limit end 350.

[0062] When the stator and the rotor are installed in the cavity formed by the casting, with the high-speed rotation of the rotor, when the outside air is inhaled into the cavity, an instantaneous high pressure will be generated. After the pressure in the inner cavity of the pump shell suddenly increases and is forced to release pressure, the motor with a large slip ratio will be overloaded, and in severe cases, the rotor speed will be unbalanced;

[0063] As the air pressure in the inner cavity of the pump housing increases, the high-pressure air flow will apply extrusion pressure to the four pressure push rods 250 along the four protective covers 230. Eventually, the compressed pressure push rods 250 will push the clamping plate 260 to move horizontally outwards, and the two push rods 240 connected to both ends of the clamping plate 260 will extrude the multiple plug columns 280 evenly distributed outwards. The high-pressure air flow will enter the inside of the protective cover 230 from the inner cavity of the pump housing and be input into the inner cavity of the stator gasket 210 along the air window 290. Eventually, the high-pressure air flow will be input into the cavity formed by the gasket 220, the air inlet groove 170, and the air collecting groove 180;

[0064] According to the usage requirements, the third conduits 450 can be sealed using screw sleeves, and the four first conduits 150 close to the four third conduits 450 can also be sealed using screw sleeves. At this time, the other four first conduits 150 and the four external connection pipes 160 can transfer the instantaneous high pressure to the gap inside the return backing plate 320. The pressure release gasket disc 373, the guide rod 375, and the plug head 376 pushed by the high-pressure air flow will extend towards the inside of the pump housing. At this time, the cooling air flow can be input into the pump housing along the pipeline inside the cold air input part 372, and the high-pressure air flow can be safely released outwards from the limit end 350.

[0065] At the same time, after the cooling air flow input from the pipeline inside the cold air input part 372 enters the inner cavity of the pump housing, the heat energy in the inner cavity of the pump housing can also be regularly carried and discharged.

[0066] Embodiment 2:

[0067] Combined with Figures 2 to 8 As shown, on the basis of Embodiment 1, the air extraction and pressure reduction mechanism 100 further includes four groups of first conduits 150 installed on the two sub-side wing plates 120 and four groups of external connection pipes 160 connected to the four groups of first conduits 150;

[0068] Preferably, two first conduits 150 are in a group, and two external connection pipes 160 are in a group. Therefore, the number of the four groups of first conduits 150 is eight, and the number of the four groups of external connection pipes 160 is also eight.

[0069] The tail-end commutation mechanism 300 further includes four second conduits 340;

[0070] The head-end casting mechanism 400 further includes four third conduits 450;

[0071] Among them, four external connection pipes 160 are connected to the four second conduits 340, and the other four external connection pipes 160 are connected to the four third conduits 450.

[0072] During actual use, four of the third conduits 450 and four of the first conduits 150 can be docked with four external connecting pipes 160 according to the flow direction of the air pressure, so that the air pressure in the inner cavity of the pump housing can be subjected to constant pressure treatment, thereby avoiding the phenomenon of instantaneous high-pressure air flow in the inner cavity of the pump housing. The constant-pressure air flow can continuously push the pressure-relieving gasket 373 towards the inner side of the cushion 371. At this time, the pipes in the cold air input member 372 can continuously input the cooling air flow into the pump housing and achieve the purpose of cooling and temperature reduction.

[0073] A cavity is formed inside the reflux backing plate 320, and the limiting end 350 is adaptively penetrated into the cavity inside the reflux backing plate 320;

[0074] The cold air input member 372 is composed of a circular gasket and pipes, and chutes adapted to the end plates on both sides of the plug 376 are provided at the ports of the pipes penetrating to the inner side of the cushion 371;

[0075] A through hole with a gradually changing aperture is provided at the inner end of the pipe;

[0076] A plurality of evenly distributed inserts are provided at one end of the pressure-relieving gasket 373 away from the two guide rods 375, and the inserts on the pressure-relieving gasket 373 are adaptively penetrated into the inside of the limiting end 350.

[0077] Preferably, a sealing ring is provided on the outer wall of the pressure-relieving gasket 373, and lubricating oil is coated between the sealing ring and the cushion 371. Among them, the column head of the plug 376 is adaptively penetrated into the gradually changing through hole of the inner pipe body of the cold air input member 372. When four of the third conduits 450 and four of the first conduits 150 facing the cover 410 are blocked, a sealed and safe auxiliary rotation space can be provided for the rotor in the inner cavity of the pump housing.

[0078] Embodiment 3:

[0079] Combined with Figures 2 to 5 As shown, on the basis of Embodiment 1, the air extraction and pressure reduction mechanism 100 further includes four groups of first anti-collision plates 130;

[0080] The tail-end commutation mechanism 300 further includes four groups of second anti-collision plates 330;

[0081] The head-end casting mechanism 400 further includes four groups of third anti-collision plates 420;

[0082] The first anti-collision plates 130, the second anti-collision plates 330, and the third anti-collision plates 420 are all made of stainless steel material, and evenly distributed reinforcing backing plates 131 are provided on the first anti-collision plates 130, and plugs 140 are provided in the holes inside the reinforcing backing plates 131.

[0083] Preferably, four sets of first anti-collision plates 130 are installed in the grooves between the two main side wing plates 110 and the two secondary side wing plates 120, and the first anti-collision plates 130 made of the reinforcing pads 131 can improve the resistance to external force impact;

[0084] The four second anti-collision plates 330 and the four third anti-collision plates 420 can enhance the compressive strength of the head end and the tail end of the casting, thereby improving the stability of the gap between the reflux pad 320 and the inner wall of the cover 410 .

[0085] Embodiment 4:

[0086] Combination Figure 9 and Figure 10 As shown, in the above embodiment, the first tension spring 270 is in a T-shaped structure as a whole, and the end of the first tension spring 270 that penetrates into the inner cavity of the stator protective pad 210 is provided with a limiting groove adapted to the trapezoidal pad, and a sealing ring is provided on the column head at the other end of the first tension spring 270;

[0087] A cylindrical hole is formed inside the protective cover 230 , and the column head at the inner end of the pressure push rod 250 fits in the cylindrical hole, and the cylindrical hole is connected to the air window 290 .

[0088] Preferably, a transverse groove is provided in the middle of the inner arc surface of the stator gasket 210, and the transverse groove of the arc surface of the inner wall of the stator gasket 210 is connected to the inner cavity of the protective cover 230. When high-pressure airflow is generated in the pump casing due to the high-speed rotation of the rotor, the airflow will push the pressure push rod 250 outward along the inside of the protective cover 230, and finally the clamping plate 260 installed at the outer end of the pressure push rod 250 can drive the two push rods 240 to move outward at a constant pressure. At this time, multiple plugs 280 can be withdrawn outward from the stator gasket 210, and finally the high-pressure airflow in the pump casing in a closed state can be regularly released with slow pressure.

[0089] Working principle and use process of the present invention: The motor in the new energy vehicle will experience air extraction during use, and this phenomenon is caused by the air being sucked into the space between the rotor and the pump housing during the high-speed rotation of the rotor. This air extraction pressure is extremely high, and the instantaneous increase in air pressure will cause safety hazards to the rotation of the rotor;

[0090] The casting in the present invention is different from the traditional pump casing. By setting two symmetrically distributed main side wing plates 110 and two secondary side wing plates 120, the two air inlet grooves 170 opened on the inner wall of the main side wing plate 110 and the two air collecting grooves 180 opened on the inner wall of the secondary side wing plate 120 are connected to each other, and multiple plugs 140 will seal the air holes outside the main side wing plate 110 and the secondary side wing plate 120.

[0091] When the head casting mechanism 400 and the tail-end commutation mechanism 300 cooperate with the two main side wing plates 110 and the two secondary side wing plates 120 to provide a safe operating space for the rotor and the stator, as the rotor rotates at high speed, when air is inhaled from the shaft sleeve 430 into the cavity between the rotor and the pump housing, the air pressure that suddenly increases due to the high-speed rotation of the rotor will be squeezed into the transverse grooves on the inner walls of the four protective covers 230. At this time, the pressure push rod 250 under the action of the air pressure will extend outward along the inner cavity of the protective cover 230 until the inner end stud of the pressure push rod 250 contracts into the inner cavity of the protective cover 230. At this time, the cavity between the rotor and the pump housing will communicate with the inner cavity of the stator gasket 210 through the air window 290, and the pressure push rod 250 after pressure relief will quickly reset. At the same time, the continuously increasing air pressure in the inner cavity of the stator gasket 210 will push the evenly distributed multiple plug posts 280 to extend outward;

[0092] At this time, the outer end plugs of the plug posts 280 will extrude outward from the slot holes on the outer wall of the stator gasket 210, and the inner cavity of the stator gasket 210 can form an effective exhaust passage with the air intake groove 170 and the air collecting groove 180 through the gasket 220. Finally, the discharged air pressure will be released outward along the four outer connecting pipes 160 into the inner cavity of the return backing plate 320. Under the action of the air pressure, the pressure relief pad disk 373 will extend into the inner cavity of the gasket 371 until the multiple inserts provided at the outer end of the pressure relief pad disk 373 withdraw from the limit end heads 350. The boosted guide rod 375 and the plug head 376 will extend out of the pipe of the cold air input member 372, and the pipe in the cold air input member 372 can input the cooling air flow into the pump housing. At the same time, the air flow inside the return backing plate 320 will be released outward from the holes of the limit end heads 350.

[0093] Therefore, while the motor housing casting prevents the instantaneous boost air extraction phenomenon for the rotor, it can also efficiently cool down the inner cavity of the pump housing after pressure relief until the rotor operates safely in a constant temperature and constant pressure space.

[0094] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An aluminum alloy shell casting for an electric motor used in a new energy vehicle, characterized in that, It includes four groups of aerodynamic propulsion mechanisms (200) arranged inside the air extraction and decompression mechanism (100), a tail-end commutation mechanism (300) arranged at one end of the air extraction and decompression mechanism (100), and a head-end casting mechanism (400) arranged at the other end of the air extraction and decompression mechanism (100); The air extraction and decompression mechanism (100) includes two main side wing plates (110) and two sub-side wing plates (120). Two air collecting grooves (180) are provided on the inner wall of the main side wing plate (110), and two air inlet grooves (170) are provided on the inner wall of the sub-side wing plate (120); The aerodynamic propulsion mechanism (200) includes a stator gasket (210) arranged inside the adjacent main side wing plate (110) and sub-side wing plate (120), a protective cover (230) installed in the middle of the stator gasket (210), and a pressure push rod (250) movably installed inside the protective cover (230). An air window (290) is provided on the outer wall of the protective cover (230); The aerodynamic propulsion mechanism (200) further includes a gasket (220) installed in the hole on the inner wall of the stator gasket (210), a plug column (280) arranged inside the gasket (220), a first pull spring (270) connected to the gasket (220), and the other end of the first pull spring (270) is connected to the plug column (280); Two symmetrically distributed propulsion rods (240) are arranged in the inner cavity of the stator gasket (210); The propulsion rod (240) is composed of a plurality of trapezoidal pads and beam rods, and a clamping plate (260) is installed at the outer end of the beam rod; The outer end of the pressure push rod (250) is installed inside the clamping plate (260); A cylindrical hole is provided inside the protective cover (230). The column head at the inner end of the pressure push rod (250) is fitted and attached to the cylindrical hole, and the cylindrical hole communicates with the air window (290); The tail-end commutation mechanism (300) includes a housing (310) and a return flow backing plate (320) arranged at one end of the two main side wing plates (110) and the two sub-side wing plates (120).

2. The aluminum alloy housing casting for the motor of a new energy vehicle according to claim 1, wherein, The tail-end commutation mechanism (300) further includes a limit end (350) installed in the middle of the housing (310), a base (360) arranged inside the return flow backing plate (320), and a gas exchange component (370) arranged inside the limit end (350) and the base (360); The gas exchange component (370) includes a gasket (371) installed inside the base (360), a cold air input part (372) movably installed inside the gasket (371), a pressure release gasket disc (373) movably installed outside the tube body of the cold air input part (372), two guide rods (375) installed at the inner end of the pressure release gasket disc (373), and a plug head (376) installed on the two guide rods (375), and the plug head (376) is adapted to penetrate into the tube body inside the cold air input part (372); A second pull spring (374) is connected to the outer end of the pressure release gasket disc (373), and the other end of the second pull spring (374) is connected to the limit end (350).

3. The aluminum alloy housing casting for the motor of a new energy vehicle according to claim 2, characterized in that, The cold air input part (372) is composed of a circular gasket and a pipe, and the pipe penetrates through to a port inside the gasket (371), where a chute adapted to the side end plates of the plug (376) is provided; A through hole with a gradually changing aperture is provided at the inner end of the pipe; At one end of the pressure relief gasket (373) away from the two guide rods (375), a plurality of uniformly distributed insertion blocks are provided, and the insertion blocks on the pressure relief gasket (373) are adapted to penetrate into the interior of the limit end (350).

4. The aluminum alloy motor housing casting for a new energy vehicle according to claim 1, wherein, The first tension spring (270) is integrally in a T-shaped structure, and the end of the first tension spring (270) penetrating into the inner cavity of the stator gasket (210) is provided with a limit card slot adapted to the trapezoidal cushion block, while a sealing ring is provided on the stud at the other end of the first tension spring (270).

5. The aluminum alloy motor housing casting for a new energy vehicle according to claim 1, wherein, The head casting mechanism (400) includes a cover (410) provided at the other ends of the two main side wing plates (110) and the two sub-side wing plates (120), a bushing (430) provided in the cover (410), and a base (440) provided in the cover (410).

6. The aluminum alloy housing casting for the motor of a new energy vehicle according to claim 5, wherein, The air extraction and pressure reduction mechanism (100) further includes four groups of first conduits (150) installed on the two sub-side wing plates (120) and four groups of external connecting pipes (160) connected to four of the first conduits (150); The tail-end commutation mechanism (300) further includes four second conduits (340); The head casting mechanism (400) further includes four third conduits (450); Four of the external connecting pipes (160) are connected to the four second conduits (340), and the other four external connecting pipes (160) are connected to the four third conduits (450).

7. The aluminum alloy housing casting for the motor of a new energy vehicle according to claim 5, characterized in that, The air extraction and pressure reduction mechanism (100) further includes four groups of first anti-collision plates (130); The tail-end commutation mechanism (300) further includes four groups of second anti-collision plates (330); The head casting mechanism (400) further includes four groups of third anti-collision plates (420); The first anti-collision plate (130), the second anti-collision plate (330), and the third anti-collision plate (420) are all made of stainless steel material, and uniformly distributed reinforcing pads (131) are provided on the first anti-collision plate (130), and plugs (140) are provided in the holes inside the reinforcing pads (131).

8. The aluminum alloy housing casting for the motor of a new energy vehicle according to claim 1, characterized in that, A cavity is provided inside the return pad (320), and the limit end (350) is adapted to penetrate into the cavity inside the return pad (320).

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