New energy automobile motor controller heat dissipation structure

Abstract

The invention relates to the technical field of motor controllers, in particular to a new energy automobile motor controller heat dissipation structure which comprises a mounting box, a trigger assembly and an emergency assembly, the trigger assembly is arranged at a trigger groove, and the emergency assembly comprises a starting mechanism arranged in a water inlet pipe and a cooling mechanism arranged on the side wall of a heat dissipation groove. The starting and stopping of the emergency assembly are controlled, the emergency assembly can be started when the temperature is high, waste of the electric quantity of the electric car is avoided, the utilization efficiency of electric energy is improved, the starting mechanism and the cooling mechanism are arranged, when cooling liquid enters the middle section of the flow guide channel, the cooling liquid is rapidly cooled, and the temperature rise and the cooling efficiency reduction after the cooling liquid is cooled are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of motor controllers, and particularly to a heat dissipation structure for a motor controller of a new energy vehicle. Background Art

[0002] As the "brain" of the motor system, the motor controller plays a crucial role in modern industry, intelligent devices, and the new energy field. By precisely controlling the start, stop, speed, torque, and direction of the motor, it ensures the efficient and stable operation of the motor, meeting the requirements of various complex application scenarios. By adjusting the input voltage, current, or frequency, the motor controller can achieve precise control of the motor speed and torque, and is applicable to a variety of working conditions from low-speed high-torque to high-speed low-torque. A vehicle, a motor control device thereof, and a heat dissipation chassis for a motor controller disclosed in CN208338138U. The heat dissipation chassis for the motor controller includes a box body for placing the motor controller; a heat dissipation flow channel for the coolant to flow through and cool the motor controller is provided on the box body, and heat dissipation fins are provided in the heat dissipation flow channel. By adopting the above structure, heat dissipation fins are arranged in the heat dissipation flow channel to increase heat conduction and the heat dissipation area of the heat dissipation flow channel, thereby realizing the maximum heat dissipation capacity of the water cooling system.

[0003] However, when the above heat dissipation chassis for the motor controller is in use, the coolant enters the diffuser heat channel from the cooling water inlet, absorbs the heat of the motor radiator, and then discharges from the cooling water outlet. However, the length of the diffuser heat channel is relatively long. When the working pressure of the motor controller is relatively high and the temperature of the motor controller is also relatively high, the coolant quickly heats up after entering the diffuser heat channel, resulting in a poor cooling effect of the coolant on the latter half of the diffuser heat channel. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat dissipation structure for a motor controller of a new energy vehicle to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A heat dissipation structure for a motor controller of a new energy vehicle, comprising: An installation box, a heat dissipation slot is provided on the back of the installation box, a diversion channel is provided in the heat dissipation slot, a water inlet pipe and a water outlet pipe are provided on the heat dissipation slot wall, a sealing cover is provided in the heat dissipation slot, and an emergency slot and a trigger slot are opened on the sealing cover; Trigger component, the trigger component is arranged at the trigger slot, the trigger component includes a protective shell inserted on the wall of the trigger slot, a thin tube arranged in the protective shell, a flow-through groove opened on the protective shell, a mercury tube arranged in the flow-through groove and communicated with the thin tube, an electrode I arranged on the thin tube, an electrode II arranged in the mercury tube, a battery arranged on the bottom wall of the protective shell and connected to the electrode I and the electrode II, and a transmitter arranged on the bottom wall of the protective shell and connected to the battery; Emergency component, the emergency component includes a starting mechanism arranged in the water inlet pipe and a cooling mechanism arranged on the side wall of the heat dissipation slot. The coolant enters the diversion channel from the water inlet pipe and then flows out from the water outlet pipe. When the coolant flows through the protective shell at the water outlet pipe, the coolant contacts the mercury tube through the flow-through groove. When the temperature of the coolant rises, the mercury tube is heated, causing the mercury in the mercury tube to rise into the thin tube. When the mercury contacts the electrode I, the battery and the transmitter are connected, and the transmitter emits a signal, causing the starting mechanism to block the diversion channel and introduce the coolant into the cooling mechanism for cooling and then send it back to the diversion channel until the temperature of the coolant drops to cause the mercury to fall in the thin tube when it flows through the mercury tube, causing the mercury to separate from the electrode I and the transmitter to lose power, and the starting mechanism to reopen the diversion channel.

[0006] Preferably, a limiting plate is arranged at the middle section of the diversion groove, a through hole is opened on the limiting plate, and a partition plate is arranged at the emergency slot.

[0007] Preferably, when the sealing cover is inserted into the heat dissipation slot, the partition plate fits against the limiting plate Preferably, the starting mechanism includes a connecting component arranged on the partition plate and a commutation component arranged on the connecting component. The connecting component includes a base tube inserted on the partition plate, a movable tube arranged in the base tube, a piston I and a piston II arranged on the movable tube, a fixed rod arranged on the base tube, a limiting through tube arranged on the fixed rod, a displacement groove opened on the limiting through tube, and a steering tube arranged on the base tube.

[0008] Preferably, the commutation component includes a power rod arranged in the limiting through tube, a connecting tube arranged on the power rod and connected to the movable tube through the displacement groove, a plug plate arranged on the limiting through tube, a bracket arranged on the bottom wall of the installation box, a telescopic rod arranged on the bracket and connected to one end of the power rod through the side wall of the heat dissipation slot, an L-shaped rod arranged at the other end of the power rod, and a tapered plug arranged on the L-shaped rod.

[0009] Preferably, when mercury contacts the first electrode, the battery and the transmitter are connected. The telescopic rod drives the power rod to move, causing the movable tube to move into contact with the plug plate, so that the opening at the connection between the rotating tube and the base tube is moved out from between the first piston and the second piston. At the same time, the conical plug is inserted into the through hole, allowing the coolant to enter the steering tube while preventing the coolant from passing through the movable tube and the through hole. When the mercury disengages from the first electrode, the telescopic rod drives the power rod to move in the reverse direction, causing the movable tube to move away from the plug plate, so that the opening at the connection between the rotating tube and the base tube is moved back between the first piston and the second piston. At the same time, the conical plug leaves the through hole, preventing the coolant from entering the steering tube while allowing the coolant to pass through the movable tube and the through hole.

[0010] Preferably, the cooling mechanism includes an emergency tube provided on the wall of the heat dissipation groove, a temperature reduction member and a ventilation member provided on the emergency tube. The emergency tube includes an emergency inner tube with one end connected to the steering tube and the other end connected to the heat dissipation groove, a heat insulation tube provided on the outer wall of the emergency inner tube, and a one-way valve provided on the emergency inner tube.

[0011] Preferably, the temperature reduction member includes a heat dissipation tube provided on the emergency inner tube, a mesh heat conduction sheet inserted into and penetrating the heat dissipation tube, heat dissipation holes opened on the mesh heat conduction sheet and located inside the heat dissipation tube, a dust-proof plate provided on the heat dissipation tube, an outer cover tube provided on the dust-proof plate, and a semiconductor refrigeration sheet provided on the mesh heat conduction sheet.

[0012] Preferably, the ventilation member includes a rotating ring provided on the heat dissipation tube, blades and a first gear provided on the rotating ring, a second gear meshing with the first gear, and a motor provided on the installation box and connected to the second gear.

[0013] Preferably, when the coolant enters the emergency inner tube and flows through the heat dissipation tube, the semiconductor refrigeration sheet cools the heat dissipation fin, so that the heat of the coolant flowing through the mesh heat conduction sheet and the heat dissipation holes is absorbed by the mesh heat conduction sheet. The motor drives the blades to rotate, taking away the heat on the semiconductor heat dissipation fin and the mesh heat conduction sheet.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the setting of the trigger assembly, the present invention controls the start and stop of the emergency assembly, enabling the emergency assembly to start when the temperature is relatively high, avoiding wasting the power of the tram, improving the utilization efficiency of electric energy. The setting of the starting mechanism and the cooling mechanism enables the coolant to be quickly cooled when it enters the middle section of the diversion channel, preventing the temperature of the coolant from rising after cooling and reducing the heat dissipation efficiency. Description of the Drawings

[0015] Figure 1 Schematic diagram of the upward view structure of the present invention; Figure 2 Schematic diagram of the structure of the installation box of the present invention; Figure 3 is Figure 2 Schematic diagram of the enlarged structure of area A in Figure 4 Schematic diagram of the structure of the present invention after hiding the installation box; Figure 5 Schematic diagram of the structure of the trigger assembly of the present invention; Figure 6 Cross-sectional structure schematic diagram of the trigger assembly of the present invention; Figure 7 Schematic diagram of the structure of the starting mechanism of the present invention; Figure 8 Cross-sectional structure schematic diagram of the starting mechanism of the present invention; Figure 9 Schematic diagram of the structure of the cooling mechanism of the present invention; Figure 10 Schematic diagram of the structure of the cooling mechanism of the present invention after hiding the outer cover tube; Figure 11 Front view structure schematic diagram of the cooling mechanism of the present invention after hiding the outer cover tube; Figure 12 Schematic diagram of the structure of the emergency pipe of the present invention.

[0016] In the figure: 1. Installation box; 2. Heat dissipation groove; 3. Diversion channel; 4. Water inlet pipe; 5. Water outlet pipe; 6. Sealing cover; 7. Emergency groove; 8. Trigger groove; 9. Protection shell; 10. Thin pipe; 11. Flow-through groove; 12. Mercury tube; 13. Electrode 1; 14. Electrode 2; 15. Battery; 16. Transmitter; 17. Limiting plate; 18. Through hole; 19. Partition board; 20. Base tube; 21. Movable tube; 22. Piston 1; 23. Piston 2; 24. Fixed rod; 25. Limit through pipe; 26. Displacement groove; 27. Steering tube; 28. Power rod; 29. Connecting pipe; 30. Plug plate; 31. Bracket; 32. Telescopic rod; 33. L-shaped rod; 34. Conical plug; 35. Emergency inner tube; 36. Heat insulation tube; 37. Check valve; 38. Heat dissipation tube; 39. Mesh heat conducting sheet; 40. Heat dissipation hole; 41. Dust-proof plate; 42. Outer cover tube; 43. Semiconductor refrigeration sheet; 44. Rotating ring; 45. Blade; 46. Gear 1; 47. Gear 2; 48. Motor. Specific implementation manners

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1 to 12 , the present invention provides a technical solution: A heat dissipation structure for a motor controller of a new energy vehicle, comprising: An installation box 1, a heat dissipation groove 2 is arranged on the back of the installation box 1. The installation box 1 is used for installing the motor 48 controller. A diversion channel 3 is arranged in the heat dissipation groove 2. A water inlet pipe 4 and a water outlet pipe 5 are arranged on the wall of the heat dissipation groove 2, so that the coolant enters the diversion channel 3 from the water inlet pipe 4 to dissipate heat from the motor 48 controller and then flows out from the water outlet pipe 5. A sealing cover 6 is arranged in the heat dissipation groove 2. An emergency groove 7 and a trigger groove 8 are arranged on the sealing cover 6. The sealing cover 6 is fixedly connected to the side wall of the heat dissipation groove 2 by means of bolts and sealing rings, etc. The emergency groove 7 is arranged at the water outlet pipe 5. The trigger groove 8 is arranged on the opposite side of the water inlet pipe 4 and the water outlet pipe 5. A limiting plate 17 is arranged at the middle section of the diversion groove. The limiting plate 17 is fixedly connected to the side wall of the diversion groove by means of integral molding, etc. The middle section of the diversion groove is located on the opposite side of the water inlet pipe 4 and the water outlet pipe 5. A through hole 18 is arranged on the limiting plate 17. A partition plate 19 is arranged at the emergency groove 7. The partition plate 19 is fixedly connected to the side wall of the emergency groove 7 by means of integral molding or welding, etc. When the sealing cover 6 is inserted into the heat dissipation groove 2, the partition plate 19 fits the limiting plate 17. A sealing gasket can be arranged on the partition plate 19 so that the partition plate 19 can closely adhere to the limiting plate 17.

[0019] Trigger component, the trigger component is arranged at the trigger slot 8. The trigger component includes a protective shell 9, a thin tube 10, a flow channel 11, a mercury tube 12, an electrode 13, an electrode 14, a battery 15 and a transmitter 16. The protective shell 9 is fixedly connected to the side wall of the trigger slot 8 by welding or other means. The thin tube 10 is arranged inside the protective shell 9 and is fixedly connected to the protective shell 9 by gluing. The flow channel 11 is opened on the protective shell 9. The mercury tube 12 is arranged inside the flow channel 11 and is communicated with the thin tube 10. The mercury tube 12 is fixedly connected to the side wall of the flow channel 11 by gluing or other means and is fixedly connected to the thin tube 10 by integral molding or other means. The mercury tube 12 stores mercury. The electrode 13 is arranged on the thin tube 10 and is fixedly connected to the thin tube 10 by gluing or other means. The electrode 14 is arranged inside the mercury tube 12 and is fixedly connected to the mercury tube 12 by gluing or other means. The battery 15 is arranged on the bottom wall of the protective shell 9 and is connected to the electrode 13 and the electrode 14. The battery 15 is fixedly connected to the bottom wall of the protective shell 9 by setting screws or other means. The transmitter 16 is arranged on the bottom wall of the protective shell 9 and is connected to the battery 15. The transmitter 16 is fixedly connected to the bottom wall of the protective shell 9 by setting screws or other means. The battery 15 is electrically connected in series with the electrode 13, the electrode 14 and the transmitter 16 by setting wires or other means. The coolant enters the diversion channel 3 from the water inlet pipe 4 and then flows out from the water outlet pipe 5. When the coolant flows through the protective shell 9 at the water outlet pipe 5, the coolant contacts the mercury tube 12 through the flow channel 11. When the temperature of the coolant rises, it heats the mercury tube 12, causing the mercury in the mercury tube 12 to rise and enter the thin tube 10. When the mercury contacts the electrode 13, the battery 15 and the transmitter 16 are connected, and the transmitter 16 emits a signal. When the coolant flows through the mercury tube 12, the temperature drops to cause the mercury to fall in the thin tube 10, causing the mercury to separate from the electrode 13 and turning off the power of the transmitter 16.

[0020] Emergency component, the emergency component includes a starting mechanism arranged in the water inlet pipe 4 and a cooling mechanism arranged on the side wall of the heat dissipation groove 2. The starting mechanism includes a connecting component arranged on the partition plate 19 and a reversing component arranged on the connecting component. The connecting component includes a base pipe 20, a movable pipe 21, a first piston 22, a second piston 23, a fixing rod 24, a limiting through pipe 25, a displacement groove 26, and a steering pipe 27. The base pipe 20 is inserted into the partition plate 19, and the base pipe 20 is fixedly connected to the partition plate 19 by welding or other means. The movable pipe 21 is arranged in the base pipe 20, and the movable pipe 21 is movably connected to the base pipe 20. The first piston 22 and the second piston 23 are arranged on the movable pipe 21, and the first piston 22 and the second piston 23 are fixedly connected to the movable pipe 21 by gluing or setting screws or other means. The first piston 22 and the second piston 23 are linearly distributed on the movable pipe 21, and the first piston 22 and the second piston 23 are respectively movably connected to the base pipe 20. The fixing rod 24 is arranged on the base pipe 20, and the fixing rod 24 is fixedly connected to the base pipe 20 by welding or other means. The limiting through pipe 25 is arranged on the fixing rod 24, and the limiting through pipe 25 is fixedly connected to the fixing rod 24 by welding or other means. The displacement groove 26 is opened on the limiting through pipe 25, and the steering pipe 27 is arranged on the base pipe 20, and the steering pipe 27 is fixedly connected to the base pipe 20 by integral molding or other means.

[0021] The commutation member includes a power rod 28, a connecting pipe 29, a plug plate 30, a bracket 31, a telescopic rod 32, an L-shaped rod 33, and a tapered plug 34. The power rod 28 is arranged in the limit through pipe 25, and the power rod 28 is movably connected to the limit through pipe 25. The connecting pipe 29 is arranged on the power rod 28 and passes through the displacement groove 26 to be connected to the movable pipe 21. The connecting pipe 29 is fixedly connected to the power rod 28 by means of welding or the like. The other end of the connecting pipe 29 is fixedly connected to the movable pipe 21 by means of welding or the like. The plug plate 30 is arranged on the limit through pipe 25, and the plug plate 30 is fixedly connected to the limit through pipe 25 by means of welding or the like. The bracket 31 is arranged on the bottom wall of the installation box 1, and the bracket 31 is fixedly connected to the bottom wall of the installation box 1 by means of welding or the like. The telescopic rod 32 is arranged on the bracket 31 and passes through the wall of the heat dissipation groove 2 to be connected to one end of the power rod 28. The telescopic rod 32 is fixedly connected to the bracket 31 by means of bolts or the like. The telescopic rod 32 is fixedly connected to the power rod 28 by means of bolts or the like. The telescopic rod 32 is movably connected to the wall of the heat dissipation groove 2 by means of a dynamic sealing ring. The L-shaped rod 33 is arranged at the other end of the power rod 28, and the L-shaped rod 33 is fixedly connected to the L-shaped rod 33 by means of integral molding or welding or the like. The tapered plug 34 is arranged on the L-shaped rod 33, and the tapered plug 34 is fixedly connected to the L-shaped rod 33 by means of screws or adhesives or the like. When the mercury contacts the first electrode 13, the battery 15 and the transmitter 16 are connected. The telescopic rod 32 drives the power rod 28 to move, so that the movable pipe 21 moves to fit with the plug plate 30, and the opening at the connection of the rotating pipe and the base pipe 20 is moved out from between the first piston 22 and the second piston 23. At the same time, the tapered plug 34 is inserted into the through hole 18, so that the coolant enters the steering pipe 27 while preventing the coolant from passing through the movable pipe 21 and the through hole 18. When the mercury separates from the first electrode 13, the telescopic rod 32 drives the power rod 28 to move in the reverse direction, so that the movable pipe 21 moves away from the plug plate 30, and the opening at the connection of the rotating pipe and the base pipe 20 is moved back between the first piston 22 and the second piston 23 again. At the same time, the tapered plug 34 leaves the through hole 18, preventing the coolant from entering the steering pipe 27 while allowing the coolant to pass through the movable pipe 21 and the through hole 18.

[0022] The cooling mechanism includes an emergency pipe arranged on the wall of the heat dissipation groove 2, a temperature reduction member and a ventilation member arranged on the emergency pipe. The emergency pipe includes an emergency inner pipe 35, a heat insulation pipe 36, and a one-way valve 37. One end of the emergency inner pipe 35 is communicated with the steering pipe 27 and the other end is communicated with the heat dissipation groove 2. The emergency inner pipe 35 is fixedly connected to the steering pipe 27 by means of welding or the like. The emergency inner pipe 35 is fixedly connected to the side wall of the heat dissipation groove 2 by means of welding or the like. The heat insulation pipe 36 is arranged on the outer wall of the emergency inner pipe 35, and the heat insulation pipe 36 is made of heat insulation material. The one-way valve 37 is arranged on the emergency inner pipe 35, and the one-way valve 37 is fixedly connected to the emergency inner pipe 35 by means of threaded connection.

[0023] The cooling component includes a heat dissipation pipe 38, a mesh heat conduction sheet 39, heat dissipation holes 40, a dust-proof plate 41, an outer cover pipe 42, and a semiconductor refrigeration sheet 43. The heat dissipation pipe 38 is arranged on the emergency inner pipe 35, and the heat dissipation pipe 38 is fixedly connected to the emergency inner pipe 35 by welding or other means. The mesh heat conduction sheet 39 is inserted into the heat dissipation pipe 38 and penetrates through the heat dissipation pipe 38. The mesh heat conduction sheet 39 is fixedly connected to the heat dissipation pipe 38 by welding or other means. The mesh heat conduction sheet 39 is arranged in a "rice" shape. The heat dissipation holes 40 are opened on the mesh heat conduction sheet 39 and are located inside the heat dissipation pipe 38. The dust-proof plate 41 is arranged on the heat dissipation pipe 38, and the dust-proof plate 41 is fixedly connected to the heat dissipation pipe 38 by welding or other means. The outer cover pipe 42 is arranged on the dust-proof plate 41, and the outer cover plate is fixedly connected to the dust-proof plate 41 by welding or other means. The semiconductor refrigeration sheet 43 is arranged on the mesh heat conduction sheet 39, and the semiconductor refrigeration sheet 43 is fixedly connected to the mesh heat conduction sheet 39 by setting screws or other means.

[0024] The ventilation component includes a rotating ring 44, blades 45, a first gear 46, a second gear 47, and a motor 48. The rotating ring 44 is arranged on the heat dissipation pipe 38, and the rotating ring 44 is rotatably connected to the heat dissipation pipe 38 by setting bearings or other means. The blades 45 are arranged on the rotating ring 44, and the blades 45 are fixedly connected to the rotating ring 44 by setting bolts or other means. The first gear 46 is fixedly connected to the rotating ring 44 by interference fit and setting a flat key or other means. The second gear 47 meshes with the first gear 46. The motor 48 is arranged on the installation box 1 and is connected to the second gear 47. The motor 48 is fixedly connected to the installation box 1 by setting bolts or other means. The second gear 47 is fixedly connected to the motor 48 by interference fit and setting a flat key or other means. An 80C51 single-chip microcomputer and a signal receiver are also arranged on the installation box 1. The signal receiver is used to receive the signal sent by the transmitter 16. The motor 48, the signal receiver, and the semiconductor refrigeration sheet 43 are respectively communicatively connected to the single-chip microcomputer through data electrical signals. The signal receiver and the transmitter 16 can select the HC-05 Bluetooth module. When the coolant enters the emergency inner pipe 35 and flows through the heat dissipation pipe 38, the semiconductor refrigeration sheet 43 cools the heat dissipation fin, so that the heat of the coolant flowing through the mesh heat conduction sheet 39 and the heat dissipation holes 40 is absorbed by the mesh heat conduction sheet 39. The motor 48 drives the blades 45 to rotate, and takes away the heat on the semiconductor heat dissipation fin and the mesh heat conduction sheet 39.

[0025] Working principle: When in use, the coolant enters the diversion channel 3 from the water inlet pipe 4 and then flows out from the water outlet pipe 5. When the coolant flows through the protective shell 9 at the water outlet pipe 5, the coolant contacts the mercury tube 12 through the flow-through groove 11. When the temperature of the coolant rises, it heats the mercury tube 12, causing the mercury in the mercury tube 12 to rise and enter the thin tube 10. When the mercury contacts the first electrode 13, the battery 15 and the transmitter 16 are connected, and the transmitter 16 emits a signal. The signal receiver receives the signal, and the telescopic rod 32 drives the power rod 28 to move, causing the movable tube 21 to move to fit with the plug plate 30, so that the opening at the connection between the rotating tube and the base tube 20 is moved out from between the first piston 22 and the second piston 23. At the same time, the conical plug 34 is inserted into the through hole 18, allowing the coolant to enter the steering tube 27 while preventing the coolant from passing through the movable tube 21 and the through hole 18. The coolant enters the emergency inner tube 35 and flows through the heat dissipation tube 38. The semiconductor refrigeration sheet 43 cools the heat sink, causing the heat of the coolant flowing through the mesh heat conducting sheet 39 and the heat dissipation holes 40 to be absorbed by the mesh heat conducting sheet 39. The motor 48 drives the blades 45 to rotate, taking away the heat on the semiconductor heat sink and the mesh heat conducting sheet 39. However, when the temperature of the coolant drops to cause the mercury to separate from the first electrode 13, the transmitter 16 is powered off, and the signal receiver cannot receive the signal. The telescopic rod 32 drives the power rod 28 to move in the reverse direction, causing the movable tube 21 to move away from the plug plate 30, so that the opening at the connection between the rotating tube and the base tube 20 is moved back between the first piston 22 and the second piston 23. At the same time, the conical plug 34 leaves the through hole 18, preventing the coolant from entering the steering tube 27 while allowing the coolant to pass through the movable tube 21 and the through hole 18.

[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure of a motor controller for a new energy vehicle, characterized in that: include: An installation box, a heat dissipation slot is arranged on the back of the installation box, a guide channel is arranged in the heat dissipation slot, a water inlet pipe and a water outlet pipe are arranged on the wall of the heat dissipation slot, a sealing cover is arranged in the heat dissipation slot, and an emergency slot and a trigger slot are opened on the sealing cover; A trigger assembly, the trigger assembly is arranged at the trigger slot, the trigger assembly includes a protective shell inserted on the trigger slot wall, a capillary tube arranged in the protective shell, a through-flow groove opened on the protective shell, a mercury tube arranged in the through-flow groove and connected to the capillary tube, an electrode 1 arranged on the capillary tube, an electrode 2 arranged in the mercury tube, a battery arranged on the bottom wall of the protective shell and connected to the electrode 1 and the electrode 2, and a transmitter arranged on the bottom wall of the protective shell and connected to the battery; An emergency component includes a starting mechanism arranged in the water inlet pipe and a cooling mechanism arranged on the side wall of the heat dissipation groove. The coolant enters the guide channel from the water inlet pipe and then flows out from the water outlet pipe. When the coolant flows through the protective shell at the water outlet pipe, the coolant contacts the mercury tube through the flow groove. When the temperature of the coolant rises, the mercury tube is heated, so that the mercury in the mercury tube rises and enters the capillary tube. When the mercury contacts the electrode one, the battery and the transmitter are connected, and the transmitter sends a signal to make the starting mechanism block the guide channel and guide the coolant into the cooling mechanism for cooling and then send it back to the guide channel, until the coolant flows through the mercury tube and the temperature is reduced to make the mercury fall in the capillary tube, so that the mercury and the electrode one are separated, and the transmitter is powered off, and the starting mechanism reopens the guide channel.

2. A heat dissipation structure of a motor controller for a new energy vehicle according to claim 1, characterized in that: A limiting plate is arranged at the middle section of the guide groove, a through hole is opened on the limiting plate, and a partition is arranged at the emergency groove.

3. A heat dissipation structure of a motor controller for a new energy vehicle according to claim 2, characterized in that: When the sealing cover is inserted into the heat dissipation groove, the partition plate is in contact with the limiting plate.

4. A heat dissipation structure of a motor controller for a new energy vehicle according to claim 2, characterized in that: The starting mechanism includes a connecting component arranged on the partition and a reversing component arranged on the connecting component. The connecting component includes a base tube inserted on the partition, a movable tube arranged in the base tube, a piston 1 and a piston 2 arranged on the movable tube, a fixing rod arranged on the base tube, a limiting through tube arranged on the fixing rod, a displacement groove opened on the limiting through tube, and a steering tube arranged on the base tube.

5. A heat dissipation structure of a motor controller for a new energy vehicle according to claim 4, characterized in that: The reversing component includes a power rod arranged in the limiting through pipe, a connecting pipe arranged on the power rod and passing through the displacement groove and connected to the movable pipe, a plug plate arranged on the limiting through pipe, a bracket arranged on the bottom wall of the mounting box, a telescopic rod arranged on the bracket and passing through the heat dissipation groove wall and connected to one end of the power rod, an L-shaped rod arranged at the other end of the power rod, and a conical plug arranged on the L-shaped rod.

6. A heat dissipation structure of a motor controller for a new energy vehicle according to claim 5, characterized in that: When mercury contacts the electrode one, the battery and the transmitter are connected, and the telescopic rod drives the power rod to move, so that the movable tube moves to fit the plug plate, so that the opening at the connection between the rotating tube and the base tube is moved out from between the piston one and the piston two, and at the same time the conical plug is inserted into the through hole, so that the coolant enters the steering tube while preventing the coolant from passing through the movable tube and the through hole; when the mercury is separated from the electrode one, the telescopic rod drives the power rod to move in the opposite direction, so that the movable tube moves to separate from the plug plate, so that the opening at the connection between the rotating tube and the base tube is moved back between the piston one and the piston two, and at the same time the conical plug leaves the through hole, preventing the coolant from entering the steering tube while allowing the coolant to pass through the movable tube and the through hole.

7. The heat dissipation structure of a motor controller for a new energy vehicle according to claim 5, characterized in that: The cooling mechanism includes an emergency pipe arranged on the wall of the heat dissipation groove, a cooling component and a ventilation component arranged on the emergency pipe, the emergency pipe includes an emergency inner pipe whose one end is connected to the steering pipe and the other end is connected to the heat dissipation groove, an insulation pipe arranged on the outer wall of the emergency inner pipe, and a one-way valve arranged on the emergency inner pipe.

8. The heat dissipation structure of a motor controller for a new energy vehicle according to claim 7, characterized in that: The cooling component includes a heat dissipation pipe arranged on the emergency inner tube, a mesh heat conductive sheet inserted on and penetrating the heat dissipation pipe, heat dissipation holes opened on the mesh heat conductive sheet and located in the heat dissipation pipe, a dustproof plate arranged on the heat dissipation pipe, an outer cover tube arranged on the dustproof plate, and a semiconductor refrigeration sheet arranged on the mesh heat conductive sheet.

9. A heat dissipation structure of a motor controller for a new energy vehicle according to claim 8, characterized in that: The ventilation component includes a rotating ring arranged on the heat dissipation pipe, blades and gear 1 arranged on the rotating ring, gear 2 meshing with the gear 1, and a motor arranged on the installation box and connected to the gear 2.

10. The heat dissipation structure of a motor controller for a new energy vehicle according to claim 8, characterized in that: When the coolant enters the emergency inner tube and flows through the heat dissipation tube, the semiconductor refrigeration sheet cools the heat dissipation sheet, so that the heat of the coolant flowing through the mesh heat conductive sheet and the heat dissipation holes is absorbed by the mesh heat conductive sheet, and the motor drives the blades to rotate to take away the heat from the semiconductor heat dissipation sheet and the mesh heat conductive sheet.

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