A new energy vehicle motor high-efficiency heat dissipation device and a use method thereof

Abstract

The application discloses a new energy automobile motor high-efficiency heat dissipation device and a use method thereof, and relates to the technical field of motor heat dissipation devices.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and in particular to a high-efficiency heat dissipation device for new energy vehicle motors and its usage method. Background Technology

[0002] As the driving force of pure electric new energy vehicles, electric motors can achieve extremely low or zero emissions. During the operation of pure electric vehicles, the stator core and stator windings of the motor will generate losses during the movement. These losses are dissipated outward in the form of heat. Therefore, effective cooling media and cooling methods are needed to remove the heat and ensure that the motor operates safely and reliably in a stable hot and cold cycle balance ventilation system. The quality of the motor cooling system design will directly affect the safe operation and service life of the motor.

[0003] In the past, most motor cooling processes used water cooling and air cooling. This device mainly uses water cooling. However, during water cooling, insufficient contact between the liquid surface and the coolant flow due to excessively fast flow rate can lead to insufficient heat absorption and reduced cooling efficiency. On the other hand, if the coolant flow rate is too slow, heat will not dissipate in time, which will also reduce cooling efficiency.

[0004] In addition, when a new energy vehicle is running, the rapid rotation of the motor rotor causes slight vibration between the motor and the motor housing, resulting in a slight noise when the motor rotates. After long-term use, as the rotor vibrates during rotation, the dust accumulated at the connection between the motor and the motor housing will be scattered inside the motor housing.

[0005] To address the aforementioned issues, a high-efficiency heat dissipation device for electric motors in new energy vehicles and its usage method are proposed. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency heat dissipation device for electric motors in new energy vehicles and its usage method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency heat dissipation device for electric motors in new energy vehicles, comprising: A water-cooled housing for a motor, wherein multiple housing cooling pipes are fixedly installed on the side wall of the water-cooled housing, and the side wall of the housing cooling pipes is provided with a coolant flow cavity; A driving mechanism, wherein multiple driving mechanisms are installed inside the coolant flow chamber, and the multiple driving mechanisms are used to provide driving force for subsequent operations in the water cooling process after the motor starts; A pressing mechanism, wherein multiple pressing mechanisms are installed between the driving mechanism and the coolant flow chamber, and the multiple pressing mechanisms are used to perform shock absorption and dust removal operations on the motor water-cooled housing and the motor connection end after the motor is started.

[0008] Preferably, the driving mechanism includes a suspension rod, a rotating rod, a mixing wheel, a driving link, and a top contact rod; the top end of the suspension rod is fixedly connected to the inner side wall of the coolant flow chamber, the rotating rod is rotatably connected to the suspension rod, the mixing wheel is fixedly installed on the side wall of the rotating rod, the driving link is fixedly connected to the side wall of the rotating rod, and the top contact rod is fixedly installed on the side wall of the driving link.

[0009] Preferably, the pressing mechanism includes a limiting slider, a sliding extrusion rod, an abutment plate, an abutment groove, an extrusion tube, an extrusion slider, a suction pipe, a damping diaphragm, a suction valve port, and an exhaust valve port. The limiting slider is fixedly connected to the side wall of the coolant flow chamber. The side wall of the sliding extrusion rod is slidably connected to the limiting slider. The abutment plate is fixedly connected to the sliding extrusion rod. The abutment groove is formed on the side wall of the abutment plate. The extrusion tube is fixedly installed on the bottom side wall of the coolant flow chamber. The extrusion slider is slidably connected to the inner side wall of the extrusion tube. The sliding extrusion rod is fixedly connected to the extrusion slider. The suction pipe is fixedly installed on the side wall of the extrusion tube and is connected to the extrusion tube. The damping diaphragm is fixedly installed at the bottom end of the extrusion tube. The suction valve port is formed on the side wall of the suction pipe. The exhaust valve port is fixedly installed on the side wall of the suction pipe.

[0010] Preferably, the bottom inner wall of the coolant flow cavity has a wave-shaped cross-section, the mixing wheel is located in the middle of the rotating rod, the two driving connecting rods are symmetrically arranged about the horizontal cross-section centerline of the rotating rod, and the suspension support rod and the rotating connection end of the rotating rod are in a tight fit.

[0011] Preferably, a limiting groove is formed inside the suspension support rod, and a limiting ring is fixedly installed on the side wall of the rotating rod. The opening width of the limiting groove is the same as the width of the limiting ring, and the limiting groove and the side wall of the limiting ring are kept in close contact. A sealing rubber ring is provided at the interface end of the extrusion tube and the coolant flow cavity. The top contact rod is slidably connected to the side wall of the abutting groove. The diameter of the top contact rod is smaller than the groove width of the abutting groove, and the top contact rod and the abutting groove do not separate during movement.

[0012] Preferably, the two limiting sliders are symmetrically arranged about the horizontal cross-section centerline of the rotating rod, and the width of the groove of the two limiting sliders is the same as the width of the sliding extrusion rod. When the contact plate moves to the top, the sliding extrusion rod and the limiting slider do not separate.

[0013] Preferably, a sealing rubber ring is provided at the interface end of the extrusion tube and the coolant flow cavity, the top contact rod is slidably connected to the side wall of the contact groove, the diameter of the top contact rod is smaller than the groove width of the contact groove, and the top contact rod and the contact groove do not separate during movement.

[0014] Preferably, the horizontal cross-sectional diameter of the extrusion slider is the same as the inner groove diameter of the extrusion tube, and the extrusion tube and the side wall of the extrusion slider are kept in close contact. When the contact plate moves to the top, the extrusion slider and the extrusion tube do not separate.

[0015] Preferably, the dust suction valve port adopts a one-way valve port structure, and the one-way valve port of the dust suction valve port points from the outside to the inside of the coolant flow chamber. The air outlet port adopts a squeeze valve port structure. After the damping diaphragm reaches the maximum bulging state, the air outlet port performs a ventilation process. When the top contact rod moves to the bottom end of the groove that abuts the slide groove, the damping diaphragm is in a bulging state.

[0016] A method for efficient heat dissipation of electric motors in new energy vehicles, comprising the following steps: When the motor starts, the coolant begins to flow through the coolant cavity of the motor water-cooling housing fitted on the outside of the motor, and the motor water-cooling process is started. When the cooling water passes through the drive mechanism, the high-speed cooling water causes the internal components of the mechanism to rotate, and the converted driving force is applied to the pressure mechanism. Driven by the driving mechanism, the pressing mechanism performs the diaphragm operation at the damping diaphragm end and the dust suction process at the suction pipe end. At this point, the entire cooling, damping, and internal dust suction process is completed, and the cycle continues with the reciprocating operation of the driving mechanism.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention increases the area of ​​the heat conduction end by setting the internal structure of the coolant flow cavity, and uses the mixing effect driven by water to achieve the heat neutralization function of different liquid levels, thereby improving heat dissipation efficiency.

[0018] This invention achieves vibration reduction during motor operation by utilizing the coordinated action of internal components of the coolant flow chamber, drive mechanism, and pressure mechanism, and by converting the driving force. In the process, it also absorbs and stores dust at the connection point between the motor and the motor water-cooled housing.

[0019] This invention increases the area of ​​the heat conduction end by setting the internal structure of the coolant flow cavity, and uses the mixing effect driven by water to achieve the heat neutralization function of different liquid levels, thereby improving heat dissipation efficiency. In addition, through the cooperation between the internal components of the coolant flow cavity, the driving mechanism and the pressing mechanism, the converted driving force realizes the vibration reduction function during motor operation, and absorbs and stores the dust at the connection end between the motor and the motor water-cooled shell during this process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 2 This is a schematic diagram of the outer shell cooling pipe structure of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 3 This is a schematic diagram of the internal structure of the cooling pipe of the outer shell of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 4 This is an enlarged schematic diagram of structure A of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 5 This is a schematic diagram of the driving mechanism and the pressing mechanism of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 6 This is a schematic diagram of the disassembled structure of the suspension support rod and the rotating rod of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 7 This is a schematic diagram of the disassembled structure of the pressure mechanism of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 8 This is a schematic diagram of the contact plate structure of a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method proposed in this invention. Figure 9 This is a schematic diagram of the conventional placement and inverted structure of the extrusion tube in the present invention, which describes a high-efficiency heat dissipation device for a new energy vehicle motor and its usage method.

[0021] In the diagram: 1. Motor water-cooled housing; 2. Housing cooling pipe; 3. Coolant flow chamber; 4. Drive mechanism; 41. Suspension support rod; 42. Rotating rod; 43. Mixing wheel; 44. Drive connecting rod; 45. Top contact rod; 46. Limiting groove; 47. Limiting ring; 5. Pressing mechanism; 51. Limiting slider; 52. Sliding extrusion rod; 53. Contact plate; 54. Contact groove; 55. Extrusion tube; 56. Extrusion slider; 57. Suction pipe; 58. Shock-absorbing membrane; 59. Suction valve port; 510. Air outlet valve port; 6. Sealing rubber ring. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Reference Figure 1-9 A high-efficiency heat dissipation device for electric motors in new energy vehicles, comprising: The driving mechanism 4 includes a suspension rod 41, a rotating rod 42, a mixing wheel 43, a driving link 44, and a top contact rod 45. The top end of the suspension rod 41 is fixedly connected to the inner side wall of the coolant flow chamber 3. The rotating rod 42 is rotatably connected to the suspension rod 41. The mixing wheel 43 is fixedly installed on the side wall of the rotating rod 42. The driving link 44 is fixedly connected to the side wall of the rotating rod 42. The top contact rod 45 is fixedly installed on the side wall of the driving link 44. The motor water-cooled housing 1 is fixedly installed on the side wall of the motor water-cooled housing 1. Multiple housing cooling pipes 2 are fixedly installed on the side wall of the housing cooling pipes 2. The side wall of the housing cooling pipes 2 is provided with a coolant flow chamber 3. Drive mechanism 4, multiple drive mechanisms 4 are installed inside the coolant flow chamber 3. Multiple drive mechanisms 4 are used to provide driving force for subsequent operations in the water cooling process after the motor starts. A pressing mechanism 5, multiple pressing mechanisms 5 are installed between the driving mechanism 4 and the coolant flow chamber 3. Multiple pressing mechanisms 5 are used to perform shock absorption and dust removal operations on the motor water-cooled housing 1 and the motor connection end after the motor starts.

[0024] The present invention is further described in detail as follows: the driving mechanism 4 includes a suspension rod 41, a rotating rod 42, a mixing wheel 43, a driving link 44, and a top contact rod 45; the top end of the suspension rod 41 is fixedly connected to the inner side wall of the coolant flow chamber 3, the rotating rod 42 is rotatably connected to the suspension rod 41, the mixing wheel 43 is fixedly installed on the side wall of the rotating rod 42, the driving link 44 is fixedly connected to the side wall of the rotating rod 42, and the top contact rod 45 is fixedly installed on the side wall of the driving link 44.

[0025] The invention is further described in detail as follows: The pressing mechanism 5 includes a limiting slider 51, a sliding extrusion rod 52, an abutment plate 53, an abutment groove 54, an extrusion tube 55, an extrusion slider 56, a suction pipe 57, a shock-absorbing membrane 58, a suction valve port 59, and an exhaust valve port 510. The limiting slider 51 is fixedly connected to the side wall of the coolant flow chamber 3, the side wall of the sliding extrusion rod 52 is slidably connected to the limiting slider 51, the abutment plate 53 is fixedly connected to the sliding extrusion rod 52, and the abutment groove 54 is formed in the abutment plate. The side wall of the disc 53, the extrusion tube 55 is fixedly installed on the bottom side wall of the coolant flow chamber 3, the extrusion slider 56 is slidably connected to the inner side wall of the extrusion tube 55, the sliding extrusion rod 52 is fixedly connected to the extrusion slider 56, the dust suction tube 57 is fixedly installed on the side wall of the extrusion tube 55 and is connected to the extrusion tube 55, the shock absorption diaphragm 58 is fixedly installed at the bottom end of the extrusion tube 55, the dust suction valve port 59 is opened on the side wall of the dust suction tube 57, and the air outlet valve port 510 is fixedly installed on the side wall of the dust suction tube 57.

[0026] The invention is further described in detail as follows: the bottom inner wall of the coolant flow cavity 3 is designed with a wave-shaped structure, the mixing wheel 43 is located in the middle of the rotating rod 42, the two driving connecting rods 44 are symmetrically arranged about the horizontal cross-section centerline of the rotating rod 42, and the rotating connection end of the suspension rod 41 and the rotating rod 42 is in a tight fit.

[0027] The invention is further described in detail as follows: a limiting groove 46 is provided inside the suspension rod 41, and a limiting ring 47 is fixedly installed on the side wall of the rotating rod 42. The opening width of the limiting groove 46 is the same as the width of the limiting ring 47, and the limiting groove 46 and the side wall of the limiting ring 47 are kept in close contact.

[0028] The invention is further described in detail as follows: the two limiting sliders 51 are symmetrically arranged about the center line of the horizontal section of the rotating rod 42, and the width of the groove of the two limiting sliders 51 is the same as the width of the sliding extrusion rod 52. When the contact plate 53 moves to the top, the sliding extrusion rod 52 and the limiting sliders 51 do not separate.

[0029] The present invention is further described in detail as follows: a sealing rubber ring 6 is provided at the interface end of the extrusion tube 55 and the coolant flow cavity 3; the top contact rod 45 is slidably connected to the side wall of the contact groove 54; the diameter of the top contact rod 45 is smaller than the groove width of the contact groove 54; and the top contact rod 45 and the contact groove 54 do not separate during movement.

[0030] The invention is further described in detail as follows: the horizontal cross-sectional diameter of the extrusion slider 56 is the same as the inner groove diameter of the extrusion tube 55, and the extrusion tube 55 and the side wall of the extrusion slider 56 are kept in close contact. When the contact plate 53 moves to the top, the extrusion slider 56 and the extrusion tube 55 do not separate.

[0031] The invention is further described in detail as follows: the dust suction valve port 59 adopts a one-way valve port structure, and the one-way valve port of the dust suction valve port 59 points from the outside to the inside of the coolant flow chamber 3. The air outlet valve port 510 adopts a squeeze valve port structure. After the damping diaphragm 58 reaches the maximum bulging state, the air outlet valve port 510 performs the ventilation process. When the top contact rod 45 moves to the bottom end of the groove of the slide groove 54, the damping diaphragm 58 is in the bulging state.

[0032] This invention includes the following steps: When the motor starts, the coolant begins to flow through the coolant flow chamber 3 of the motor water-cooled housing 1, which is fitted onto the outer end of the motor, and the motor water-cooling process is started. When the cooling water passes through the drive mechanism 4, the internal components of the drive mechanism 4 rotate due to the action of the high-speed cooling water, and the converted driving force is applied to the pressure mechanism 5. Driven by the driving mechanism 4, the pressing mechanism 5 performs the diaphragm operation at the damping diaphragm 58 and the dust collection process at the suction pipe 57. At this point, the entire cooling, damping, and internal dust collection process is completed. Subsequently, the cycle continues with the reciprocating operation of the driving mechanism 4. A method for efficient heat dissipation of electric motors in new energy vehicles, the specific steps of which are as follows: When the motor starts, the coolant begins to flow through the coolant flow chamber 3 of the motor water-cooled housing 1, which is fitted onto the outer end of the motor, and the motor water-cooling process is started. When the cooling water passes through the drive mechanism 4, the internal components of the drive mechanism 4 rotate due to the action of the high-speed cooling water, and the converted driving force is applied to the pressure mechanism 5. Driven by the driving mechanism 4, the pressing mechanism 5 performs the diaphragm operation at the end of the shock-absorbing diaphragm 58 and the dust collection process at the end of the suction pipe 57. At this time, the single process of cooling, shock absorption and internal dust collection is completed, and then the cycle continues with the reciprocating operation of the driving mechanism 4.

[0033] The advantages of this invention are explained below: according to Figure 1 It can be seen that the motor water-cooled housing 1 is installed on the outer end of the new energy vehicle motor. When the water cooling operation starts, the coolant flows through the coolant flow cavity 3. Since the bottom cross section of the coolant flow cavity 3 adopts a curved structure, the area of ​​the coolant and the heat conduction end in a single coolant flow cavity 3 is increased. according to Figure 3 and Figure 4It can be seen that when the cooling water flows through the interior of the cooling water flow chamber 3, it will drive the mixing wheel 43 to rotate. As the mixing wheel 43 rotates, the cooling water at the top and the cooling water at the bottom are mixed, so that the cooling water with higher heat at the bottom and the cooling water with lower heat at the top are neutralized, thereby improving the heat absorption efficiency of the cooling water. according to Figure 5 As the mixing wheel 43 rotates, the rotating rod 42 fixedly connected to it rotates simultaneously. Since the side wall of the rotating rod 42 is equipped with a limit ring 47 and the side wall of the suspension rod 41 is equipped with a limit groove 46, the suspension rod 41 limits the rotation of the rotating rod 42. The rotation of the rotating rod 42 drives the connecting rod 44 and the top contact rod 45 to rotate. according to Figure 5 and Figure 7 It can be seen that when the top contact rod 45 rotates to the top, the inner wall of the top of the contact groove 54, which is slidably connected to the top contact rod 45, comes into contact with the top contact rod 45. At this time, the damping diaphragm 58 is not bulging. As the rotating rod 42 continues to rotate, when the top contact rod 45 slides to the bottom of the contact groove 54, the contact plate 53 moves downward, squeezing the slider 56 to squeeze the gas inside the squeezing tube 55, and performing the bulging process on the damping diaphragm 58. When the damping diaphragm 58 is fully bulging, it comes into contact with the internal motor, thereby using the bulging damping diaphragm 58 to perform the buffering and shock absorption function. according to Figure 5 , Figure 7 and Figure 9 It can be seen that when the top contact rod 45 moves from the bottom of the inner wall of the contact groove 54 to the top of the inner wall of the contact groove 54 again, during this process, the sliding extrusion rod 52 moves upward and the extrusion slider 56 is pulled back. Due to the air pressure, the dust suction valve port 59 begins to suck air from the outside. During the suction process, since the exhaust valve port 510 is an extrusion valve port and the dust suction valve port 59 is a one-way valve port, the dust at the connection end between the motor and the motor water-cooled housing 1 enters the dust suction pipe 57 and the extrusion pipe 55 for storage under the action of suction. During this process, excess gas will be sucked in. When the sliding extrusion rod 52 performs the downward pressing process next time, when the damping diaphragm 58 is fully bulging, the excess gas is discharged through the exhaust valve port 510 under the action of the sliding extrusion rod 52, thereby maintaining stable air pressure. As described in the text, this invention increases the area of ​​the heat conduction end by setting the internal structure of the coolant flow cavity 3, and uses the mixing effect driven by water to achieve the heat neutralization function of different liquid levels, thereby improving heat dissipation efficiency. In addition, through the cooperation between the internal components of the coolant flow cavity 3, the driving mechanism 4 and the pressing mechanism 5, the converted driving force realizes the shock absorption function during motor operation, and absorbs and stores the dust at the connection end between the motor and the motor water-cooled housing 1 during this process.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency heat dissipation device for a new energy vehicle motor, characterized in that, include: The motor water-cooled housing (1) has multiple housing cooling pipes (2) fixedly installed on the side wall of the motor water-cooled housing (1), and the side wall of the housing cooling pipes (2) has a coolant flow cavity (3). A driving mechanism (4), a plurality of driving mechanisms (4) are installed inside the coolant flow chamber (3), and the plurality of driving mechanisms (4) are used to provide driving force for subsequent operations in the water cooling process after the motor starts; The pressing mechanism (5) is installed between the driving mechanism (4) and the coolant flow chamber (3). The pressing mechanism (5) is used to perform shock absorption and dust removal operations on the motor water-cooled housing (1) and the motor connection end after the motor is started. The driving mechanism (4) includes a suspension rod (41), a rotating rod (42), a mixing wheel (43), a driving link (44), and a top contact rod (45); the top end of the suspension rod (41) is fixedly connected to the inner side wall of the coolant flow chamber (3), the rotating rod (42) is rotatably connected to the suspension rod (41), the mixing wheel (43) is fixedly installed on the side wall of the rotating rod (42), the driving link (44) is fixedly connected to the side wall of the rotating rod (42), and the top contact rod (45) is fixedly installed on the side wall of the driving link (44). The pressing mechanism (5) includes a limiting slider (51), a sliding extrusion rod (52), an abutment plate (53), an abutment groove (54), an extrusion tube (55), an extrusion slider (56), a suction pipe (57), a damping membrane (58), a suction valve port (59), and an exhaust valve port (510). The limiting slider (51) is fixedly connected to the side wall of the coolant flow chamber (3). The side wall of the sliding extrusion rod (52) is slidably connected to the limiting slider (51). The abutment plate (53) is fixedly connected to the sliding extrusion rod (52). The abutment groove (54) is opened on the side wall of the abutment plate (53). The pressure tube (55) is fixedly installed on the bottom side wall of the coolant flow chamber (3). The extrusion slider (56) is slidably connected to the inner side wall of the extrusion tube (55). The sliding extrusion rod (52) is fixedly connected to the extrusion slider (56). The dust suction tube (57) is fixedly installed on the side wall of the extrusion tube (55). The dust suction tube (57) is connected to the extrusion tube (55). The shock-absorbing diaphragm (58) is fixedly installed at the bottom end of the extrusion tube (55). The dust suction valve port (59) is opened on the side wall of the dust suction tube (57). The air outlet valve port (510) is fixedly installed on the side wall of the dust suction tube (57). The two limiting sliders (51) are symmetrically arranged about the horizontal cross-section centerline of the rotating rod (42). The width of the groove of the two limiting sliders (51) is the same as the width of the sliding extrusion rod (52). When the contact plate (53) moves to the top, the sliding extrusion rod (52) and the limiting slider (51) do not separate. The interface end of the extrusion tube (55) and the coolant flow cavity (3) is provided with a sealing rubber ring (6). The top contact rod (45) is slidably connected to the side wall of the contact groove (54). The diameter of the top contact rod (45) is smaller than the groove width of the contact groove (54). The top contact rod (45) and the contact groove (54) do not separate during movement. The horizontal cross-sectional diameter of the extrusion slider (56) is the same as the inner groove diameter of the extrusion tube (55). The extrusion tube (55) and the side wall of the extrusion slider (56) are kept in close contact. When the contact plate (53) moves to the top, the extrusion slider (56) and the extrusion tube (55) do not separate. The dust suction valve port (59) adopts a one-way valve port structure. The one-way valve port of the dust suction valve port (59) points from the outside to the inside of the coolant flow chamber (3). The air outlet valve port (510) adopts an extrusion valve port structure. After the damping diaphragm (58) reaches the maximum bulging state, the air outlet valve port (510) performs the ventilation process. When the top contact rod (45) moves to the bottom end of the groove of the contact slide (54), the damping diaphragm (58) is in a bulging state.

2. The high-efficiency heat dissipation device for a new energy vehicle motor according to claim 1, characterized in that, The bottom inner wall of the coolant flow cavity (3) is designed with a wave-shaped structure. The mixing wheel (43) is located in the middle of the rotating rod (42). The two driving connecting rods (44) are symmetrically arranged about the horizontal cross-section centerline of the rotating rod (42). The suspension support rod (41) and the rotating connection end of the rotating rod (42) are in a tight fit.

3. The high-efficiency heat dissipation device for a new energy vehicle motor according to claim 1, characterized in that, The suspension rod (41) has a limiting groove (46) inside, and a limiting ring (47) is fixedly installed on the side wall of the rotating rod (42). The opening width of the limiting groove (46) is the same as the width of the limiting ring (47), and the limiting groove (46) and the side wall of the limiting ring (47) are kept in close contact.

4. A heat dissipation method using the high-efficiency heat dissipation device for new energy vehicle motors as described in any one of claims 1-3, characterized in that, Includes the following steps: When the motor starts, the coolant begins to flow through the coolant flow chamber (3) of the motor water-cooled housing (1) fitted on the outer end of the motor, and the motor water-cooling process is started. When the coolant passes through the end of the drive mechanism (4), the internal components of the drive mechanism (4) rotate due to the action of the high-speed cooling water, and the converted driving force is applied to the end of the pressure mechanism (5). Under the drive of the driving mechanism (4), the pressing mechanism (5) performs the work of bulging the end of the shock-absorbing membrane (58) and the dust suction process at the end of the suction pipe (57). At this time, the single work process of cooling, shock absorption and internal dust suction is completed, and then the cycle continues with the reciprocating operation of the driving mechanism (4).

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