Efficient heat dissipation device for driving motor of new energy automobile

Abstract

The invention relates to the technical field of driving motor heat dissipation, in particular to a new energy automobile driving motor efficient heat dissipation device which comprises a protective cover, a driving motor is installed in the protective cover, an air inlet is formed in one end of the protective cover, and fan blades and a belt pulley A are rotationally arranged at one end of the protective cover; a plurality of groups of heat dissipation copper pipes are arranged on the outer side of the driving motor, the interiors of the plurality of groups of heat dissipation copper pipes are hollow, one end of the protective cover is communicated with the cooling tank, and the other side of the cooling tank is communicated with one group of heat dissipation copper pipes. Heat generated by the driving motor is rapidly taken away, efficient dynamic heat dissipation is achieved, meanwhile, when the driving motor is in an idling state, the design that the two ends of the heat dissipation copper pipe are exposed out of the protective cover is utilized, the adsorbed heat is discharged through natural heat dissipation, and the basic heat dissipation requirement of the driving motor in the idling state is met.

Description

Technical Field

[0001] This invention relates to the field of drive motor heat dissipation technology, specifically to a high-efficiency heat dissipation device for drive motors in new energy vehicles. Background Technology

[0002] With its core advantages of low emissions and high energy efficiency, new energy vehicles have become the core direction for the transformation and upgrading of the automotive industry. As the core power component of new energy vehicles, the performance of the drive motor directly determines the vehicle's power output, driving range and safety stability. Existing heat dissipation methods for drive motors are relatively simple. When the motor is running under high load, it is difficult to quickly dissipate the large amount of heat generated, which can easily lead to the motor temperature exceeding the standard and cause performance failures due to overheating. In addition, after long-term use, the heat dissipation components of the drive motor will form a heat insulation layer due to dust accumulation, which will greatly reduce the heat transfer. Summary of the Invention

[0003] This invention achieves efficient dynamic heat dissipation by circulating coolant between multiple sets of heat dissipation copper pipes and cooling tanks during drive motor operation. Simultaneously, when the drive motor is idling, the design of exposing both ends of the heat dissipation copper pipes outside the protective cover allows for natural heat dissipation to expel the adsorbed heat, ensuring the basic heat dissipation requirements of the drive motor during idling.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency heat dissipation device for a drive motor of a new energy vehicle, comprising a protective cover, a drive motor installed inside the protective cover, an air inlet at one end of the protective cover, a fan blade and a pulley A rotating at one end of the protective cover, multiple sets of heat dissipation copper pipes arranged on the outside of the drive motor, and the interior of each set of heat dissipation copper pipes being hollow, one end of the protective cover being connected to a cooling tank, and the other side of the cooling tank being connected to one of the sets of heat dissipation copper pipes; One set of the heat dissipation copper pipes is connected to the cooling tank, and the upper end of the protective cover is provided with a pulley B driven by pulley A. A cleaning block driven by pulley B slides on one end of pulley B.

[0005] Preferably, the output end of the drive motor is connected to a drive shaft, and the other end of the drive shaft extends through the protective cover to the outside.

[0006] Preferably, the drive shaft is fixedly connected to the fan blades on the outside of the protective cover, and one end of the protective cover is connected to two sets of connecting pipes A, the other end of the two sets of connecting pipes A being connected to the cooling tank.

[0007] Preferably, the multiple sets of heat dissipation copper pipes are interconnected, and both ends of the multiple sets of heat dissipation copper pipes extend through the protective cover to the outside. Two sets of support plates are installed on the outside of the multiple sets of heat dissipation copper pipes.

[0008] Preferably, a connecting pipe B is fixedly connected to the other side of the cooling tank, and the other end of the connecting pipe B extends through the protective cover into the interior of the protective cover, and the other end of the connecting pipe B is connected to a heat dissipation copper pipe near the pulley B.

[0009] Preferably, one end of the cooling tank is connected to a connecting pipe C, the other end of the connecting pipe C extends through the protective cover into the interior of the protective cover, and the other end of the protective cover is connected to a heat dissipation copper pipe near the air inlet.

[0010] Preferably, the pulley A is fixedly connected to the outside of the drive shaft, a belt is sleeved inside the pulley A, and a pulley B is sleeved at the other end of the belt.

[0011] Preferably, a fixed frame A is rotatably connected to one side of the pulley B, one end of the fixed frame A is connected to the inner wall of the protective cover, and a reciprocating lead screw is fixedly connected to one end of the pulley B.

[0012] Preferably, the reciprocating lead screw is connected to the ball nut assembly of the cleaning block, and a fixing frame B is fixedly connected to the end of the reciprocating lead screw away from the pulley B, and the fixing frame B is fixedly connected to the inner wall of the protective cover.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves efficient dynamic heat dissipation by circulating coolant between multiple sets of heat dissipation copper pipes and cooling tanks during drive motor operation. Simultaneously, when the drive motor is idling, the design of exposing both ends of the heat dissipation copper pipes outside the protective cover allows for natural heat dissipation to expel the adsorbed heat, ensuring the basic heat dissipation requirements of the drive motor during idling.

[0014] This invention utilizes the combined effects of liquid cooling and air cooling to quickly remove heat from the surfaces of multiple sets of heat dissipation copper pipes and the area around the drive motor. The two systems work together efficiently to prevent heat buildup inside the protective cover and on the surface of the heat dissipation copper pipes. At the same time, when the drive motor is operating at high power or high load, the dual cooling system responds quickly to effectively dissipate the heat generated by the drive motor, ensuring that the temperature of the drive motor is controlled within a safe range and reducing performance fluctuations caused by overheating.

[0015] This invention cleans dust from the contact side between the heat dissipation copper pipe and the drive motor by reciprocating movement of a cleaning block, preventing the formation of a heat insulation layer, ensuring that the heat transfer path between liquid cooling and air cooling remains unobstructed, preventing the heat dissipation capacity from decreasing over time, reducing dust corrosion on the surface of the heat dissipation copper pipe, preventing the risk of drive motor overload and other failures due to heat dissipation failure, and indirectly improving the durability of the drive system. Attached Figure Description

[0016] Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is one of the internal structural diagrams of the protective cover of the present invention; Figure 4 This is the second internal structural diagram of the protective cover of the present invention; Figure 5 This is one of the structural diagrams of the present invention; Figure 6 This is a partial structural diagram of the present invention; Figure 7 The third part of the structural diagram of the present invention is shown.

[0017] In the diagram: 1. Protective cover; 2. Drive motor; 3. Drive shaft; 4. Fan blade; 5. Air inlet; 6. Heat dissipation copper pipe; 7. Support plate; 8. Connecting pipe A; 9. Cooling tank; 10. Connecting pipe B; 11. Connecting pipe C; 12. Pulley A; 13. Belt; 14. Pulley B; 15. Reciprocating screw; 16. Cleaning block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] according to Figures 1-7 As shown, the present invention provides a high-efficiency heat dissipation device for a drive motor of a new energy vehicle, including a protective cover 1, a drive motor 2 installed inside the protective cover 1, an air inlet 5 at one end of the protective cover 1, a fan blade 4 and a pulley A12 rotating at one end of the protective cover 1, multiple sets of heat dissipation copper pipes 6 arranged on the outside of the drive motor 2, and the interior of the multiple sets of heat dissipation copper pipes 6 is hollow, one end of the protective cover 1 is connected to a cooling tank 9, and the other side of the cooling tank 9 is connected to one of the sets of heat dissipation copper pipes 6. One set of heat dissipation copper pipes 6 is connected to the cooling tank 9. The upper end of the protective cover 1 is provided with a pulley B14 driven by a pulley A12. A cleaning block 16 driven by a pulley B14 slides on one end of the pulley B14.

[0020] In an optional embodiment, the output end of the drive motor 2 is connected to a drive shaft 3, and the other end of the drive shaft 3 extends outward through the protective cover 1. In use, the drive shaft 3 is connected to the wheel axle, and the drive motor 2 drives the drive shaft 3 to rotate and drive the wheel to move.

[0021] In an optional embodiment, a fan blade 4 is fixedly connected to the outer side of the drive shaft 3 inside the protective cover 1. One end of the protective cover 1 is connected to two sets of connecting pipes A8, and the other end of the two sets of connecting pipes A8 is connected to the cooling tank 9. When the drive shaft 3 rotates, it synchronously drives the fan blade 4 to rotate. When the fan blade 4 rotates, it continuously supplies gas into the two sets of connecting pipes A8. When the fan blade 4 rotates, it also introduces air into the protective cover 1 through the air inlet 5, thereby promoting airflow inside the protective cover 1. In turn, the airflow will simultaneously carry away the heat generated by the drive motor 2, thereby cooling the drive motor 2.

[0022] In an optional embodiment, multiple sets of heat dissipation copper pipes 6 are interconnected, and both ends of the multiple sets of heat dissipation copper pipes 6 extend outward through the protective cover 1. Two sets of support plates 7 are installed on the outside of the multiple sets of heat dissipation copper pipes 6, and the cooling tank 9 is filled with coolant. In the initial state, the multiple sets of heat dissipation copper pipes 6 are filled with coolant. As described above, after the gas enters the connecting pipe A8, the connecting pipe A8 will transport the gas to the cooling tank 9. After the gas enters the cooling tank 9, the gas will squeeze the coolant into the connecting pipe B10. After the coolant enters the connecting pipe B10, the connecting pipe B10 will transport the coolant to the heat dissipation copper pipes 6.

[0023] In an optional embodiment, a connecting pipe B10 is fixedly connected to the other side of the cooling tank 9. The other end of the connecting pipe B10 extends through the protective cover 1 into the interior of the protective cover 1, and the other end of the connecting pipe B10 is connected to the heat dissipation copper pipe 6 near the pulley B14. When the drive motor 2 is idling, since both ends of the multiple sets of heat dissipation copper pipes 6 are located outside the protective cover 1, the heat absorbed by the multiple sets of heat dissipation copper pipes 6 will be dissipated outward through both ends when the drive motor 2 is idling.

[0024] In an optional embodiment, one end of the cooling tank 9 is connected to a connecting pipe C11, and the other end of the connecting pipe C11 extends through the protective cover 1 into the interior of the protective cover 1. The other end of the protective cover 1 is connected to a heat dissipation copper pipe 6 near the air inlet 5. One-way valves are provided at the connection points between the cooling tank 9 and the connecting pipes C11 and A8. As described above, since the multiple sets of heat dissipation copper pipes 6 initially contain coolant and are interconnected, after the coolant in the cooling tank 9 enters the heat dissipation copper pipes 6, the coolant initially remaining in the heat dissipation copper pipes 6 will enter the connecting pipe C11. The coolant entering the connecting pipe C11 will then re-enter the cooling tank 9. This causes the coolant inside the multiple sets of heat dissipation copper pipes 6 to flow. When the drive motor 2 is running, the multiple sets of heat dissipation copper pipes 6 will absorb the heat generated by the drive motor 2 on their surface. At this time, as the coolant flows inside the multiple sets of heat dissipation copper pipes 6, the heat absorbed by the multiple sets of heat dissipation copper pipes 6 will be quickly carried away. Thus, when the drive motor 2 is running, the heat generated by the drive motor 2 is quickly carried away through the circulation of the coolant between the multiple sets of heat dissipation copper pipes 6 and the cooling tank 9, achieving efficient dynamic heat dissipation. At the same time, when the drive motor 2 is idling, the heat absorbed by the heat dissipation copper pipes 6 is discharged through natural heat dissipation by the design of the two ends of the heat dissipation copper pipes 6 being exposed outside the protective cover 1, ensuring the basic heat dissipation requirements of the drive motor 2 in the idling state. Furthermore, as described above, when the fan blade 4 rotates, it causes the air inside the protective cover 1 to flow rapidly. When the air inside the protective cover 1 flows rapidly, it carries away the heat emitted by the surface of the heat dissipation copper pipe 6 and the drive motor 2 quickly through the airflow. At this time, in conjunction with the circulation of coolant inside the heat dissipation copper pipe 6, a dual cooling system is formed. Thus, through the synergy between liquid cooling and air cooling, the heat on the surface of multiple sets of heat dissipation copper pipes 6 and the area around the drive motor 2 is quickly removed. The two work together efficiently to effectively prevent heat from accumulating inside the protective cover 1 and on the surface of the heat dissipation copper pipe 6. At the same time, when the drive motor 2 is operating at high power or high load, the dual cooling system can respond quickly and effectively dissipate the heat emitted by the drive motor 2, ensuring that the temperature of the drive motor 2 is controlled within a safe range and reducing performance fluctuations caused by overheating.

[0025] In an optional embodiment, pulley A12 is fixedly connected to the outside of drive shaft 3, and belt 13 is sleeved inside pulley A12. Belt 13 is sleeved at the other end of belt 13. As described above, when drive shaft 3 rotates, it will synchronously drive pulley A12 to rotate. When pulley A12 rotates, it will drive pulley B14 to rotate synchronously through belt 13.

[0026] In an optional embodiment, a fixed frame A is rotatably connected to one side of the pulley B14. One end of the fixed frame A is connected to the inner wall of the protective cover 1. A reciprocating screw 15 is fixedly connected to one end of the pulley B14. When the pulley B14 rotates, it will synchronously drive the reciprocating screw 15 to rotate.

[0027] In an optional embodiment, the reciprocating screw 15 is connected to the ball nut assembly of the cleaning block 16, and a fixing bracket B is fixedly connected to the end of the reciprocating screw 15 away from the pulley B14. The fixing bracket B is fixedly connected to the inner wall of the protective cover 1. When the reciprocating screw 15 rotates, it will synchronously drive the cleaning block 16 to reciprocate outside the reciprocating screw 15. During the reciprocating movement of the cleaning block 16, it will simultaneously clean the side of the multiple sets of heat dissipation copper pipes 6 that are in contact with the drive motor 2. This prevents the fan blades 4 from rotating and promoting airflow inside the protective cover 1, which would cause dust to adhere to the side of the heat dissipation copper pipes 6 near the drive motor 2 and form a heat insulation layer, thereby reducing the efficiency of heat transfer. The reciprocating movement of the cleaning block 16 cleans the dust on the side of the heat dissipation copper pipes 6 that are in contact with the drive motor 2, prevents the formation of a heat insulation layer, ensures that the heat transfer path between liquid cooling and air cooling is always unobstructed, prevents the heat dissipation capacity from decreasing over time, and reduces the corrosion of the surface of the heat dissipation copper pipes 6 by dust. This prevents the risk of failure such as overload of the drive motor 2 due to heat dissipation failure, and indirectly improves the durability of the drive system.

[0028] Working principle: In use, the drive shaft 3 is connected to the wheel axle, and the drive motor 2 drives the drive shaft 3 to rotate and drive the wheel to move. When the drive shaft 3 rotates, it drives the fan blade 4 to rotate synchronously. When the fan blade 4 rotates, it continuously delivers gas to the two sets of connecting pipes A8. When the fan blade 4 rotates, it also introduces air into the protective cover 1 through the air inlet 5, thereby promoting airflow inside the protective cover 1. When the airflow occurs, it will simultaneously carry away the heat generated by the drive motor 2, thereby cooling the drive motor 2. The cooling tank 9 contains coolant, and the multiple sets of heat dissipation copper pipes 6 are initially filled with coolant. After the gas enters the connecting pipe A8, the connecting pipe A8 will transport the gas to the cooling tank 9. After the gas enters the cooling tank 9, the gas will squeeze the coolant into the connecting pipe B10. After the coolant enters the connecting pipe B10, the connecting pipe B10 will transport the coolant to the heat dissipation copper pipes 6. Since the multiple sets of heat dissipation copper pipes 6 initially contain coolant and are interconnected, the coolant inside the cooling tank 9 enters the heat dissipation copper pipes 6, causing the coolant initially remaining inside the heat dissipation copper pipes 6 to enter the connecting pipe C11. The coolant entering the connecting pipe C11 then re-enters the cooling tank 9, thereby promoting the flow of coolant inside the multiple sets of heat dissipation copper pipes 6. When the drive motor 2 is running, the multiple sets of heat dissipation copper pipes 6 will absorb the heat generated by the drive motor 2 onto their surfaces. At this time, with the coolant flowing inside the multiple sets of heat dissipation copper pipes 6, the heat absorbed by the multiple sets of heat dissipation copper pipes 6 will be quickly carried away. When the fan blade 4 rotates, the air inside the protective cover 1 will flow rapidly. When the air inside the protective cover 1 flows rapidly, the heat emitted by the outer surface of the heat dissipation copper pipes 6 and the drive motor 2 will be quickly carried away by the wind. At this time, combined with the circulation of coolant inside the heat dissipation copper pipes 6, a synergistic effect between dual heat dissipation is formed. When the drive motor 2 is idling, since both ends of the multiple sets of heat dissipation copper pipes 6 are located outside the protective cover 1, the heat absorbed by the multiple sets of heat dissipation copper pipes 6 will be dissipated outward through both ends when the drive motor 2 is idling. When the drive shaft 3 rotates, it synchronously drives the pulley A12 to rotate. When the pulley A12 rotates, it drives the pulley B14 to rotate synchronously through the belt 13. When the pulley B14 rotates, it synchronously drives the reciprocating screw 15 to rotate. When the reciprocating screw 15 rotates, it synchronously drives the cleaning block 16 to move back and forth outside the reciprocating screw 15. During the reciprocating movement of the cleaning block 16, it synchronously cleans the side of the multiple sets of heat dissipation copper pipes 6 that are in contact with the drive motor 2. This prevents the fan blades 4 from rotating and promoting airflow inside the protective cover 1, while also preventing dust from adhering to the side of the heat dissipation copper pipes 6 near the drive motor 2 and forming a heat insulation layer, thereby reducing the efficiency of heat transfer.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation device for a drive motor of a new energy vehicle, comprising a protective cover (1), characterized in that, The protective cover (1) is equipped with a drive motor (2), and an air inlet (5) is opened at one end of the protective cover (1). A fan blade (4) and a pulley A (12) rotate at one end of the protective cover (1). Multiple sets of heat dissipation copper pipes (6) are arranged on the outside of the drive motor (2), and the interior of the multiple sets of heat dissipation copper pipes (6) is hollow. One end of the protective cover (1) is connected to a cooling tank (9), and the other side of the cooling tank (9) is connected to one of the sets of heat dissipation copper pipes (6). One set of the heat dissipation copper pipes (6) is connected to the cooling tank (9). The upper end of the protective cover (1) is provided with a pulley B (14) driven by a pulley A (12). A cleaning block (16) driven by a pulley B (14) slides on one end of the pulley B (14).

2. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 1, characterized in that, The output end of the drive motor (2) is connected to the drive shaft (3), and the other end of the drive shaft (3) extends through the protective cover (1) to the outside.

3. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 2, characterized in that, The drive shaft (3) is fixedly connected to the fan blade (4) on the outside of the protective cover (1). One end of the protective cover (1) is connected to two sets of connecting pipes A (8), and the other end of the two sets of connecting pipes A (8) is connected to the cooling tank (9).

4. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 1, characterized in that, The multiple sets of heat dissipation copper pipes (6) are interconnected, and both ends of the multiple sets of heat dissipation copper pipes (6) extend through the protective cover (1) to the outside. Two sets of support plates (7) are installed on the outside of the multiple sets of heat dissipation copper pipes (6).

5. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 1, characterized in that, A connecting pipe B (10) is fixedly connected to the other side of the cooling tank (9). The other end of the connecting pipe B (10) extends through the protective cover (1) into the interior of the protective cover (1), and the other end of the connecting pipe B (10) is connected to the heat dissipation copper pipe (6) near the pulley B (14).

6. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 1, characterized in that, One end of the cooling tank (9) is connected to a connecting pipe C (11), and the other end of the connecting pipe C (11) extends through the protective cover (1) into the interior of the protective cover (1). The other end of the protective cover (1) is connected to a heat dissipation copper pipe (6) near the air inlet (5).

7. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 1, characterized in that, The pulley A (12) is fixedly connected to the outside of the drive shaft (3). A belt (13) is sleeved inside the pulley A (12), and a pulley B (14) is sleeved at the other end of the belt (13).

8. The high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 1, characterized in that, A fixed frame A is rotatably connected to one side of the pulley B (14). One end of the fixed frame A is connected to the inner wall of the protective cover (1). A reciprocating screw (15) is fixedly connected to one end of the pulley B (14).

9. A high-efficiency heat dissipation device for a new energy vehicle drive motor according to claim 8, characterized in that, The reciprocating screw (15) is connected to the ball nut pair of the cleaning block (16), and the end of the reciprocating screw (15) away from the pulley B (14) is fixedly connected to the fixing frame B, which is fixedly connected to the inner wall of the protective cover (1).

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