A wind cooling device for driving motor of new energy vehicle

Abstract

The present invention provides an air-cooled heat dissipation device for a new energy vehicle driving motor, which relates to the technical field of motor heat dissipation, solves the problems of cooling the motor and power line by the heat dissipation device, filtering dust in the air, and preventing the fixing bolts of the sealing cover from loosening, and comprises a protective sleeve; the protective sleeve has a mounting seat, and the inner side of the protective sleeve has a threaded connection seat distributed in a circular array, and the threaded connection seat is provided with a threaded hole; the inner side of the mounting seat is provided with a transverse ventilation hole, and the air outlet of the air-cooling air pump is clamped on the inner side of the ventilation hole, and the air-cooling air pump is installed on the outer side of the mounting seat by bolts. The air is cooled by the cooperation of the cooling water tank and the cooling sheet, and the dust in the air is filtered by the coolant in the cooling water tank, thereby avoiding the pollution caused by dust entering the interior of the protective sleeve, and the cooled air is transported to the interior of the protective sleeve by the air-cooling air pump, thereby achieving the effect of air cooling of the driving motor.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor heat dissipation, and more specifically, particularly relates to an air-cooling heat dissipation device for a drive motor of a new energy vehicle. Background Art

[0002] With the development of science and technology, new energy vehicles are becoming more and more mature. New energy vehicles have replaced fuel vehicles. New energy vehicles mainly rely on drive motors for power. However, the drive motors will generate a lot of heat during the driving process. In addition, most of the existing drive motors are permanent magnet motors. Therefore, the drive motors of new energy vehicles will be cooled with the help of heat dissipation devices, more specifically, air-cooled heat dissipation devices. However, the airflow generated by the heat dissipation device will pass quickly on the outside of the motor. In addition, the heat dissipation device relies on the natural wind in the air to cool the motor. Therefore, there is a disadvantage of low heat dissipation efficiency of the motor, causing the internal temperature of the motor to rise quickly. In a long-term high temperature environment, the magnetism of the magnetic steel sheet will naturally decrease slowly. In addition, the airflow generated by the heat dissipation device will adhere to impurities and dust. The dust will adhere to the surface of the motor, affecting the heat dissipation effect of the motor. The motor circuit and circuit board cannot be effectively cooled, thus causing the power cord and circuit board to heat up, affecting the service life of the power cord and circuit board. In addition, the air-cooled motor will generate noise and vibration during operation, causing the fixing bolts of the sealing cover to loosen. One is that the moisture and dust in the air enter the inside of the circuit protection shell, which will cause damage to the circuit, and the other is that the motor operation is unstable. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an air-cooled heat dissipation device for a new energy vehicle drive motor to solve the problems of poor cooling effect of the heat dissipation device on the motor, dust in the air adhering to the surface of the motor, heating of the power cord and the circuit board, and loosening of the fixing bolts of the sealing cover.

[0004] The purpose and effect of the air-cooling heat dissipation device for a new energy vehicle drive motor of the present invention are achieved by the following specific technical means:

[0005] An air-cooling heat dissipation device for a new energy vehicle driving motor includes a protective sleeve;

[0006] The protective sleeve has a mounting seat, and the inner side of the protective sleeve has threaded connection seats distributed in a circular array, and the threaded connection seats are provided with threaded holes;

[0007] An air-cooling air pump, wherein a transverse ventilation hole is provided on the inner side of the mounting seat, an air outlet of the air-cooling air pump is clamped on the inner side of the ventilation hole, and the air-cooling air pump is mounted on the outer side of the mounting seat by bolts; a driving motor, wherein the driving motor is mounted on the inner side of the protective sleeve;

[0008] An anti-loosening retaining spring, wherein the first sealing cover is provided with an annular groove, and the anti-loosening retaining spring is installed in the annular groove of the first sealing cover; a threaded connection sleeve, wherein a transverse threading hole is provided on the inner side of the mounting seat, and the air-cooling air pump will deliver a part of the air flow into the threading hole, and the threading hole is provided with an internal thread, and the threaded connection sleeve is provided with an external thread, and the threaded connection sleeve is installed on the inner side of the threading hole through the external thread;

[0009] An anti-loosening frame, wherein a circuit protection shell is disposed above the mounting seat, a second sealing cover is mounted above the circuit protection shell by bolts, and the anti-loosening frame is mounted on the outside of the second sealing cover; a connecting hose, wherein the connecting hose is mounted between the air-cooled air pump and the cooling water tank; a cooling water tank, wherein the cooling water tank is mounted above the protective sleeve, and an air inlet pipe is mounted on the inner side of the cooling water tank; and a cooling fin, wherein the cooling fin is mounted on the inner side of the cooling water tank.

[0010] Furthermore, the mounting seat is provided with six drainage grooves distributed in a circular array, the drainage grooves are connected to the ventilation holes of the mounting seat, and two arc-shaped clamping pieces are provided above the threaded connection sleeve.

[0011] Furthermore, there is a mounting groove with a ⊥-shaped structure above the protective sleeve, and there are two sliding blocks at the bottom of the cooling water tank. The protective sleeve is installed in the mounting groove of the protective sleeve through the sliding blocks, and the bottom of the cooling water tank is in contact with the mounting groove of the protective sleeve.

[0012] Furthermore, the outer side of the circuit protection shell has two sets of triangular locking blocks, the anti-loosening frame has two bend blocks, and the inner side of the bend blocks also has triangular locking blocks, and the locking blocks of the bend blocks are in opposite directions to the locking blocks of the circuit protection shell.

[0013] Furthermore, the inner side of the protective sleeve is provided with positioning grooves distributed in a circular array, the heat sink is clamped in the positioning groove of the protective sleeve, and the end surface of the first sealing cover is provided with positioning blocks distributed in a circular array, and the positioning blocks are installed in the positioning groove of the protective sleeve.

[0014] Furthermore, the first sealing cover is provided with a threaded hole that matches the clamping bolt, the inner side of the bolt mounting hole provided in the first sealing cover is a smooth structure, a support spring is installed on the outer side of the clamping bolt, a sliding block with a step structure is installed on the inner side of the support spring, the sliding block installed on the support spring is in contact with the blocking net, a sliding groove is provided on the inner side of the clamping bolt, and the sliding block in the support spring slides in the sliding groove of the clamping bolt.

[0015] Furthermore, the outer side of the driving motor is provided with heat sinks distributed in a circular array, the inner side of the heat sinks is provided with arc-shaped blocking nets, and the blocking nets are distributed in a circular array on the outer side of the driving motor.

[0016] Furthermore, a stopper is provided in the annular groove of the first sealing cover, and anti-loosening blocks are distributed in an annular array on the outer side of the anti-loosening retaining spring, and the number of the anti-loosening blocks is the same as the number of the clamping bolts.

[0017] Furthermore, a locking buckle is installed at both ends of the connecting hose, and there are two locking buckles in a group. There is a mounting sleeve between the two locking buckles, and the mounting sleeve is installed on the inner side of the connecting hose. There is an arc-shaped locking block on the inner side of the locking buckle. An annular groove is provided on the outer side of the air inlet sleeve of the air-cooling air pump, and the cooling water tank has an air outlet pipe, and an annular groove is also provided on the outer side of the air outlet pipe.

[0018] Furthermore, two mounting sleeves are arranged above the cooling fin, the mounting sleeves are provided with internal threads, and the bottom of the conduction block is provided with external threads, and the conduction block is mounted on the inner side of the mounting sleeves of the cooling fin through the external threads.

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

[0020] Firstly, the air is cooled by the cooperation of the cooling water tank and the cooling plate, and the dust in the air is filtered by the coolant in the cooling water tank to avoid the pollution caused by dust entering the inside of the protective sleeve. The cooled air is transported to the inside of the protective sleeve by the air-cooling air pump to achieve the air-cooling effect of the drive motor. At the same time, the inside of the circuit protective shell is cooled by the air-cooling air pump to solve the problem of heating of the circuit inside the circuit protective shell. Specifically, the mounting seat is provided with a drainage groove, which disperses the cold air so that the cold air evenly cools the outside of the drive motor.

[0021] Secondly, the clamping bolt is prevented from loosening by an anti-loosening retaining spring, thereby avoiding the first sealing cover from loosening caused by the loosening of the clamping bolt. Specifically, the anti-loosening retaining spring is provided with a positioning block. After the anti-loosening retaining spring is installed, the anti-loosening block covers the clamping bolt. Therefore, the anti-loosening block effectively prevents the clamping bolt from loosening, and the first sealing cover is locked by the clamping bolt. At the same time, the driving motor is tightened by the combination of the clamping bolt and the sliding block.

[0022] Furthermore, the fixing bolts of the second sealing cover are prevented from loosening by using an anti-loosening frame, thereby preventing moisture and dust in the air from entering the interior of the circuit protection shell after the second sealing cover is loosened. Specifically, the anti-loosening frame and the circuit protection shell are provided with locking blocks. After the anti-loosening frame is installed to the outer side of the second sealing cover, the anti-loosening frame is locked in position by the locking block, so that the anti-loosening frame can effectively prevent the fixing bolts of the second sealing cover from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the axial structure of the main body of the present invention in a stationary state after assembly.

[0024] Figure 2The present invention Figure 1 Schematic diagram of the left-angle structure.

[0025] Figure 3 It is a schematic diagram of the internal axial structure of the protective sleeve and the mounting seat after cutting.

[0026] Figure 4 The present invention Figure 3 Schematic diagram of the right-angle structure.

[0027] Figure 5 It is a schematic diagram of the split shaft side structure of the present invention.

[0028] Figure 6 It is a schematic diagram of the mounting seat and the drive motor shaft side structure of the present invention.

[0029] Figure 7 The present invention Figure 4 Schematic diagram of the axle side structure after the first sealing cover is removed.

[0030] Figure 8 The present invention Figure 7 Schematic diagram of the axle structure from an upward perspective.

[0031] Fig. 9 It is a schematic diagram of the cross-section axial structure of the first sealing cover of the present invention.

[0032] Fig.10 The present invention Figure 5 Schematic diagram of the enlarged structure of the clamping bolt at A.

[0033] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0034] 1. Protective sleeve; 101. Mounting seat; 102. First sealing cover; 10201. Compression bolt; 103. Circuit protection shell; 10301. Second sealing cover; 2. Air cooling pump; 3. Driving motor; 301. Heat sink; 302. Blocking net; 4. Anti-loosening retaining spring; 5. Threaded sleeve; 6. Anti-loosening frame; 7. Connecting hose; 701. Locking buckle; 8. Cooling water tank; 801. Inlet pipe; 9. Cooling fin; 901. Conducting block. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example:

[0039] As attached Figure 1 To Attachment Fig.10 As shown:

[0040] The present invention provides an air-cooling heat dissipation device for a new energy vehicle driving motor, comprising a protective sleeve 1;

[0041] The protective sleeve 1 has a mounting seat 101, and the inner side of the protective sleeve 1 has a threaded connection seat distributed in a circular array, and the threaded connection seat is provided with a threaded hole, and the threaded connection seat is used to connect the fixing bolts of the first sealing cover 102, and the outer side of the line protection shell 103 has two sets of locking blocks with triangular structures, and the anti-loosening frame 6 has two bend blocks, and the inner side of the bend block also has a locking block with a triangular structure, and the bend block facilitates the disassembly of the anti-loosening frame 6, and the locking block of the bend block is in opposite directions to the locking block of the line protection shell 103. Therefore, after the anti-loosening frame 6 is installed to the outer side of the second sealing cover 10301, the anti-loosening frame 6 is locked in position by the locking block, so that the anti-loosening The frame 6 effectively prevents the fixing bolts of the second sealing cover 10301 from loosening, thereby preventing moisture and dust in the air from entering the interior of the circuit protection shell 103 after the second sealing cover 10301 is loosened. The inner side of the protective sleeve 1 is provided with positioning grooves distributed in an annular array. The heat sink 301 is clamped in the positioning groove of the protective sleeve 1. The positioning groove of the protective sleeve 1 positions the heat sink 301 circumferentially. At the same time, the heat sink 301 positions the driving motor 3 after positioning. The end face of the first sealing cover 102 is provided with positioning blocks distributed in an annular array. The positioning blocks are installed in the positioning groove of the protective sleeve 1. The positioning groove of the protective sleeve 1 also positions the first sealing cover 1. 02 is positioned, so that the bolt mounting hole of the first sealing cover 102 is aligned with the threaded hole on the inner side of the protective sleeve 1, so as to facilitate the installation of the fixing bolt of the first sealing cover 102. A threaded hole that matches the clamping bolt 10201 is opened on the top of the first sealing cover 102. The threaded hole locks the position of the clamping bolt 10201, so that the clamping bolt 10201 can effectively clamp the cooling water tank 8. The inner side of the bolt mounting hole opened in the first sealing cover 102 is a smooth structure. A supporting spring is installed on the outer side of the clamping bolt 10201. A sliding block with a stepped structure is installed on the inner side of the supporting spring. The sliding block is fixed to the support spring The support spring elastically supports the sliding block, and the sliding block installed by the support spring contacts the blocking net 302. The support spring can be installed between the clamping bolt 10201 and the sliding block by welding, so that the support spring and the sliding block are more firmly installed. A sliding groove is provided on the inner side of the clamping bolt 10201, and the sliding block in the support spring slides in the sliding groove of the clamping bolt 10201. Therefore, after the clamping bolt 10201 is installed, the sliding block installed by the support spring presses the blocking net 302, so that the driving motor 3 is firmly installed on the inner side of the protective sleeve 1, and the support spring enables the sliding block to press the driving motors 3 of different sizes.

[0042] The air-cooling air pump 2 and the mounting base 101 are provided with a transverse ventilation hole on the inner side, and the air outlet of the air-cooling air pump 2 is clamped on the inner side of the ventilation hole, so that the cold air generated by the air-cooling air pump 2 will enter the interior of the protective sleeve 1, so that the cold air cools the driving motor 3, and the air-cooling air pump 2 is mounted on the outer side of the mounting base 101 by bolts;

[0043] The drive motor 3 is installed on the inner side of the protective sleeve 1. The outer side of the drive motor 3 is provided with heat sinks 301 distributed in an annular array. The heat sinks 301 speed up the heat dissipation of the drive motor 3. The inner side of the heat sink 301 is provided with arc-shaped blocking nets 302. The blocking nets 302 are distributed in an annular array on the outer side of the drive motor 3. The blocking nets 302 enable the sliding block at the end of the clamping bolt 10201 to effectively clamp the drive motor 3. At the same time, the blocking nets 302 block a part of the cold air, so that the cold air is repeatedly circulated on the outer side of the drive motor 3, so that the cold air can better air-cool the drive motor 3.

[0044] Anti-loosening retaining spring 4, the first sealing cover 102 is provided with an annular groove, the anti-loosening retaining spring 4 is installed in the annular groove of the first sealing cover 102, the annular groove of the first sealing cover 102 positions the anti-loosening retaining spring 4, and the annular groove of the first sealing cover 102 hides the anti-loosening retaining spring 4, there is a stopper in the annular groove of the first sealing cover 102, so after the anti-loosening retaining spring 4 is installed, it is circumferentially positioned by the stopper, and the outer side of the anti-loosening retaining spring 4 is provided with anti-loosening blocks distributed in an annular array, and the number of anti-loosening blocks is the same as the number of clamping bolts 10201. After the anti-loosening retaining spring 4 is installed, the anti-loosening blocks cover the clamping bolts 10201, so the anti-loosening blocks effectively prevent the clamping bolts 10201 from loosening;

[0045] The threaded connection sleeve 5 and the mounting seat 101 are provided with a transverse threading hole on the inner side. The air-cooling air pump 2 will convey a part of the airflow into the threading hole, so that the airflow cools the power line and the circuit in the circuit protection shell 103, thereby avoiding damage caused by heating of the power line and the circuit. The threading hole is provided with an internal thread, and the threaded connection sleeve 5 is provided with an external thread. The threaded connection sleeve 5 is installed on the inner side of the threading hole through the external thread. The mounting seat 101 is provided with six drainage grooves distributed in a circular array. When the drive motor 3 is installed on the inner side of the protective sleeve 1, the drainage groove of the mounting seat 101 will disperse the cold air, so that the cold air evenly cools the outside of the drive motor 3. The drainage groove is connected to the ventilation hole of the mounting seat 101. There are two arc-shaped clamping plates above the threaded connection sleeve 5. The clamping plates clamp the power lines of different thicknesses in the mounting seat 101, thereby facilitating the connection between the power line of the drive motor 3 and the inside of the circuit protection shell 103.

[0046] The anti-loosening frame 6 has a line protection shell 103 above the mounting seat 101, and the line protection shell 103 protects and collects the line. A second sealing cover 10301 is installed above the line protection shell 103 by bolts, and the anti-loosening frame 6 is installed on the outside of the second sealing cover 10301;

[0047] The connecting hose 7 is installed between the air-cooling pump 2 and the cooling water tank 8. Dehumidification particles can be installed on the connecting hose 7 to prevent moisture in the air from entering the interior of the circuit protection shell 103. A locking buckle 701 is installed at both ends of the connecting hose 7. There are two locking buckles 701 in a group. There is a mounting sleeve between the two locking buckles 701. The mounting sleeve is installed on the inner side of the connecting hose 7. Therefore, the locking buckle 701 is connected to the connecting hose 7 through the mounting sleeve. The inner side of the locking buckle 701 There is an arc-shaped locking block, and an annular groove is provided on the outside of the air inlet sleeve of the air-cooling air pump 2. When the connecting hose 7 is installed on the outside of the air inlet sleeve of the air-cooling air pump 2, the locking buckle 701 locks the installation position of the connecting hose 7. The cooling water tank 8 has an air outlet pipe, and an annular groove is also provided on the outside of the air outlet pipe. When the connecting hose 7 is installed on the air outlet pipe of the cooling water tank 8, the locking buckle 701 locks the connection between the connecting hose 7 and the cooling water tank 8. At this time, the cold air in the cooling water tank 8 enters the inside of the air-cooling air pump 2 through the connecting hose 7;

[0048] Cooling water tank 8, cooling water tank 8 is installed above the protective sleeve 1, an air inlet pipe 801 is installed on the inner side of the cooling water tank 8, and a mounting groove of a ⊥-shaped structure is installed above the protective sleeve 1. There are two sliding blocks at the bottom of the cooling water tank 8, and the protective sleeve 1 is installed in the mounting groove of the protective sleeve 1 through the sliding blocks. After the clamping bolt 10201 clamps the cooling water tank 8, the cooling water tank 8 is locked. The bottom of the cooling water tank 8 is in contact with the mounting groove of the protective sleeve 1, so the bottom of the cooling water tank 8 will cool the protective sleeve 1, and the cooling effect of the cooling water tank 8 will be reasonably utilized. The coolant in the cooling water tank 8 also filters dust in the air, avoiding pollution caused by dust entering the protective sleeve 1;

[0049] Cooling fin 9, cooling fin 9 is installed on the inner side of cooling water tank 8, there are two installation sleeves above cooling fin 9, the installation sleeves are provided with internal threads, the bottom of conduction block 901 is provided with external threads, conduction block 901 is installed on the inner side of the installation sleeves of cooling fin 9 through the external threads, the installation sleeves lock the conduction block 901, after the conduction block 901 is installed, it contacts with cooling fin 9, so cooling fin 9 can cool conduction block 901, so that the cooling range of conduction block 901 is expanded.

[0050] The specific usage and function of this embodiment are as follows:

[0051] When in use, first install the air-cooling pump 2 on the outside of the mounting base 101 by bolts, and the air outlet of the air-cooling pump 2 is clamped in the ventilation hole of the mounting base 101, so that the cold air generated by the air-cooling pump 2 will enter the interior of the protective sleeve 1, and install the drive motor 3 on the inner side of the mounting base 101, and then pass the power cord of the drive motor 3 through the inner side of the threaded connection sleeve 5, so that the threaded connection sleeve 5 clamps the power cord, and then install the cooling water tank 8 on the top of the mounting base 101 through the sliding block, and complete the installation of the cooling plate 9 and the conduction block 901 at the same time, and install the first sealing cover 102 on the outside of the protective sleeve 1 through the clamping bolts 10201. At this time, the clamping bolts 102 The sliding block at the end of 01 presses the blocking net 302, so that the driving motor 3 is firmly installed on the inner side of the protective sleeve 1, and then the anti-loosening spring 4 is installed on the outer side of the first sealing cover 102. After the anti-loosening spring 4 is installed, the anti-loosening block covers the clamping bolt 10201, so the anti-loosening block effectively prevents the clamping bolt 10201 from loosening, and the anti-loosening frame 6 is installed to the outer side of the second sealing cover 10301. The anti-loosening frame 6 is locked in position by the locking block, so that the anti-loosening frame 6 effectively prevents the fixing bolts of the second sealing cover 10301 from loosening, thereby preventing moisture and dust in the air from entering the interior of the line protection shell 103 after the second sealing cover 10301 is loosened;

[0052] Inject coolant into the cooling water tank 8, and then energize the cooling plate 9 to cool the coolant, and control the air-cooling pump 2 to pump the air inside the cooling water tank 8. At this time, the outdoor air will enter the coolant for circulation, and the cooled air will enter the air-cooling pump 2 again. The cooled air will be transported to the protective sleeve 1 through the air-cooling pump 2. At this time, the cooled air will cool the drive motor 3. The coolant in the cooling water tank 8 also filters the dust in the air, thereby avoiding the pollution caused by dust entering the protective sleeve 1.

[0053] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An air-cooling heat dissipation device for a new energy vehicle drive motor, characterized in that: It comprises a protective sleeve (1) and a first sealing cover (102); The protective sleeve (1) has a mounting seat (101), the inner side of the protective sleeve (1) has threaded connection seats distributed in an annular array, the threaded connection seats are provided with threaded holes, and the threaded connection seats are used to connect the fixing bolts of the first sealing cover (102); An air-cooling air pump (2), wherein a transverse ventilation hole is provided on the inner side of the mounting seat (101), an air outlet of the air-cooling air pump (2) is clamped on the inner side of the ventilation hole, and the air-cooling air pump (2) is mounted on the outer side of the mounting seat (101) by means of bolts; a driving motor (3), wherein the driving motor (3) is mounted on the inner side of the protective sleeve (1); an anti-loosening retaining spring (4), wherein the first sealing cover (102) is provided with an annular groove, and the anti-loosening retaining spring (4) is mounted in the annular groove of the first sealing cover (102); A threaded connection sleeve (5), wherein a transverse threading hole is provided on the inner side of the mounting seat (101), and the air-cooling air pump (2) will convey a part of the airflow into the threading hole, the threading hole is provided with an internal thread, and the threaded connection sleeve (5) is provided with an external thread, and the threaded connection sleeve (5) is installed on the inner side of the threading hole through the external thread; an anti-loosening frame (6), wherein a circuit protection shell (103) is provided above the mounting seat (101), and a second sealing cover (10301) is installed above the circuit protection shell (103) by bolts, and the anti-loosening frame (6) is installed on the outer side of the second sealing cover (10301); A connecting hose (7), the connecting hose (7) being installed between the air-cooling pump (2) and the cooling water tank (8); a cooling water tank (8), the cooling water tank (8) being installed above the protective sleeve (1), an air intake pipe (801) being installed on the inner side of the cooling water tank (8); a cooling fin (9), the cooling fin (9) being installed on the inner side of the cooling water tank (8); The first sealing cover (102) is provided with clamping bolts (10201) distributed in a ring array. The first sealing cover (102) is provided with a threaded hole that matches the clamping bolt (10201). The inner side of the bolt installation hole provided in the first sealing cover (102) is a smooth structure. A support spring is provided on the outer side of the clamping bolt (10201). A sliding block with a stepped structure is provided on the inner side of the support spring. The sliding block installed on the support spring contacts the blocking net (302). A sliding groove is provided on the inner side of the clamping bolt (10201). The sliding block in the support spring slides in the sliding groove of the clamping bolt (10201). A stopper is provided in the annular groove of the first sealing cover (102), and anti-loosening blocks are distributed in an annular array on the outside of the anti-loosening retaining spring (4), and the number of the anti-loosening blocks is the same as the number of the clamping bolts (10201).

2. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 1, characterized in that: The mounting seat (101) is provided with six drainage grooves distributed in a circular array, the drainage grooves are connected to the ventilation holes of the mounting seat (101), and two arc-shaped clamping pieces are provided above the threaded connection sleeve (5).

3. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 1, characterized in that: The protective sleeve (1) has a mounting groove with a L-shaped structure on the top, and the cooling water tank (8) has two sliding blocks on the bottom. The protective sleeve (1) is mounted in the mounting groove of the protective sleeve (1) via the sliding blocks, and the bottom of the cooling water tank (8) is in contact with the mounting groove of the protective sleeve (1).

4. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 1, characterized in that: The outer side of the line protection shell (103) has two sets of locking blocks with triangular structures, the anti-loosening frame (6) has two bend blocks, the inner side of the bend blocks also has locking blocks with triangular structures, and the locking blocks of the bend blocks and the locking blocks of the line protection shell (103) are in opposite directions.

5. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 1, characterized in that: The outside of the driving motor (3) is provided with heat sinks (301) distributed in a ring array, the inside of the heat sinks (301) is provided with arc-shaped blocking nets (302), and the blocking nets (302) are distributed in a ring array on the outside of the driving motor (3).

6. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 5, characterized in that: The inner side of the protective sleeve (1) is provided with positioning grooves distributed in an annular array, the heat sink (301) is clamped in the positioning groove of the protective sleeve (1), and the end surface of the first sealing cover (102) is provided with positioning blocks distributed in an annular array, the positioning blocks are installed in the positioning groove of the protective sleeve (1).

7. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 1, characterized in that: A locking buckle (701) is installed at both ends of the connecting hose (7), and two locking buckles (701) form a group. There is a mounting sleeve between the two locking buckles (701), and the mounting sleeve is installed on the inner side of the connecting hose (7). The inner side of the locking buckle (701) has an arc-shaped locking block. An annular groove is provided on the outer side of the air inlet sleeve of the air-cooling air pump (2), and the cooling water tank (8) has an air outlet pipe, and an annular groove is also provided on the outer side of the air outlet pipe.

8. The air-cooling heat dissipation device for a new energy vehicle drive motor as claimed in claim 1, characterized in that: Two mounting sleeves are provided above the cooling fin (9), the mounting sleeves are provided with internal threads, and the bottom of the conduction block (901) is provided with external threads, and the conduction block (901) is mounted on the inner side of the mounting sleeve of the cooling fin (9) via the external threads.

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