An efficient heat dissipation device for a three-in-one integrated controller used in an electric vehicle

Abstract

The present invention relates to the technical field of electric vehicles, and discloses an efficient heat dissipation device for a three-in-one integrated controller of an electric vehicle, including an integrated controller body. First heat conducting plates are uniformly distributed on the top surface of the integrated controller body. A water cooling mechanism is arranged on the integrated controller body. The water cooling mechanism includes a heat conducting pipe. A first air duct protection mechanism is arranged at the top end of the integrated controller body. The first air duct protection mechanism includes an air duct cover plate. Second heat conducting plates are uniformly distributed on the back surface of the integrated controller body. A second air duct protection mechanism is arranged at the rear end of the integrated controller body. The second air duct protection mechanism includes an air duct frame. A flow guide cover is arranged at the rear end of the air duct frame. A heat dissipation mechanism is arranged at the rear end of the flow guide cover. The heat dissipation mechanism includes a heat dissipation frame. An air extraction mechanism is arranged at the rear end of the heat dissipation frame. The air extraction mechanism includes an air extraction cylinder. The device has a simple structure, high heat dissipation efficiency for the integrated controller body, and good heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to an efficient heat dissipation device for a three-in-one integrated controller for electric vehicles. Background Art

[0002] The three-in-one integrated controller of an electric vehicle generally refers to the integration of the electric drive assembly, which includes a motor, a motor controller, and a reducer. It is equivalent to the engine and transmission in a traditional gasoline vehicle. Due to the complex internal structure and overall compact structure of the three-in-one integrated controller for electric vehicles in the prior art, the heat dissipation effect of the three-in-one integrated controller is poor during long-term operation, affecting the stability of the overall use of the controller.

[0003] Therefore, we propose an efficient heat dissipation device for a three-in-one integrated controller for electric vehicles. Summary of the Invention

[0004] The present invention mainly solves the technical problems existing in the above prior art, and provides an efficient heat dissipation device for a three-in-one integrated controller for electric vehicles.

[0005] To achieve the above object, the present invention adopts the following technical solution. An efficient heat dissipation device for a three-in-one integrated controller for electric vehicles includes an integrated controller body. The top surface of the integrated controller body is evenly distributed with first heat conducting plates. A water cooling mechanism is provided on the integrated controller body. The water cooling mechanism includes a heat conducting pipe, and the heat conducting pipe reciprocally penetrates left and right on each first heat conducting plate on the top surface of the integrated controller body. A first air duct protection mechanism is provided at the top end of the integrated controller body. The first air duct protection mechanism includes an air duct cover plate, and the air duct cover plate is erected at the top end of the integrated controller body. The inner top wall of the air duct cover plate is attached to the top end of each first heat conducting plate. The back surface of the integrated controller body is evenly distributed with second heat conducting plates. The second heat conducting plates on the back surface of the integrated controller body are arranged corresponding to the first heat conducting plates on the top surface of the integrated controller body. The top end of each second heat conducting plate is fixedly connected to the rear end of the corresponding first heat conducting plate. A second air duct protection mechanism is provided at the rear end of the integrated controller body. The second air duct protection mechanism includes an air duct frame, and the air duct frame is in a rectangular structure. The air duct frame is sleeved on the second heat conducting plates on the back surface of the integrated controller body. A flow guiding plate is fixedly connected to the inner top wall at the rear end of the air duct frame, and the flow guiding plate is attached to the rear end of the second heat conducting plates on the back surface of the integrated controller body. A flow guiding cover is provided at the rear end of the air duct frame, and a heat dissipation mechanism is provided at the rear end of the flow guiding cover. The heat dissipation mechanism includes a heat dissipation frame, and the heat dissipation frame is in a rectangular structure. The inside of the heat dissipation frame is evenly distributed with heat dissipation fins. A heat conducting pipe is also provided inside the heat dissipation frame, and the heat conducting pipe reciprocally penetrates left and right on each heat dissipation fin inside the heat dissipation frame. A suction mechanism is provided at the rear end of the heat dissipation frame. The suction mechanism includes a suction cylinder, and a suction blade is provided inside the suction cylinder.

[0006] Further, the water cooling mechanism further includes a water pump body. Fixed rings are respectively sleeved on the front and rear ends of the water pump body. The left ends of the two fixed rings are fixedly installed on the right side of the integrated controller body. A liquid outlet connecting pipe is arranged at the liquid outlet of the water pump body, and the other end of the liquid outlet connecting pipe is communicated with the heat conduction pipe.

[0007] Further, a windward plate is fixedly connected to the front end of the air duct cover plate, and the windward plate is inclined.

[0008] Further, support bars are respectively fixedly installed at the bottom of the left and right ends of the air duct cover plate through bolts, and the two support bars are respectively fixedly connected to the left and right sides of the top end of the integrated controller body.

[0009] Further, two relief grooves are formed at the right end of the air duct cover plate, and the two relief grooves at the right end of the air duct cover plate are adapted to the heat conduction pipe.

[0010] Further, first fixing blocks are respectively fixedly connected to the left and right sides of the top end of the air duct frame, and the two first fixing blocks are respectively fixedly installed with the rear end of the air duct cover plate through bolts.

[0011] Further, second fixing blocks are respectively fixedly connected to the left and right sides of the bottom end of the air duct frame. Docking blocks are respectively fixedly installed at the front ends of the two second fixing blocks through bolts, and the two docking blocks are respectively fixedly connected to the left and right sides of the rear end of the bottom of the integrated controller body.

[0012] Further, the flow guide cover has a trapezoidal frustum structure. The inside of the flow guide cover is hollow and both ends of the front end of the flow guide cover are open. The front end of the flow guide cover is fixedly connected to the bottom end of the back of the air duct frame.

[0013] Further, the heat dissipation frame is fixedly installed at the rear end of the flow guide cover. Liquid inlet joint pipes and liquid discharge joint pipes are respectively fixedly sleeved on the upper and lower ends of the right side of the heat dissipation frame.

[0014] Further, the liquid inlet joint pipe and the liquid discharge joint pipe are respectively fixedly sleeved on both ends of the heat dissipation pipe. The liquid inlet joint pipe is connected to the other end of the heat conduction pipe through a pipeline, and the liquid discharge joint pipe is connected to the liquid inlet of the water pump body through a pipeline.

[0015] Further, a fixing rod is fixedly connected to the inner side wall of the air extraction cylinder. The air extraction blade is connected to the fixing rod through a rotating shaft, and a driven gear is fixedly sleeved on the outer wall of the rotating shaft of the air extraction blade.

[0016] Further, an air extraction motor is fixedly installed on the outer side wall of the top end of the air extraction cylinder. The transmission shaft of the air extraction motor is movably sleeved in the air extraction cylinder, and a bevel gear is fixedly sleeved on the outer wall of the transmission shaft of the air extraction motor. The bottom end of the bevel gear is meshed with the driven gear through teeth.

[0017] Furthermore, a protective frame is fixedly installed at the rear end of the exhaust fan. The protective frame is in a ring structure, and a protective net is arranged inside the protective frame.

[0018] Beneficial effects

[0019] The present invention provides an efficient heat dissipation device for a three-in-one integrated controller of an electric vehicle, having the following beneficial effects:

[0020] 1. For the efficient heat dissipation device for a three-in-one integrated controller of an electric vehicle, when the integrated controller body operates, heat is conducted through the first heat conducting plate on the top surface of the integrated controller body and the second heat conducting plate on the back surface of the integrated controller body. By increasing the contact area with air through the first heat conducting plate and the second heat conducting plate, the purpose of heat dissipation is achieved. Start the exhaust fan motor of the exhaust mechanism. The exhaust fan motor drives the rotation of the bevel gear through the transmission shaft. The bevel gear drives the rotation of the driven gear through the teeth. The driven gear drives the exhaust fan blades to rotate in the exhaust fan. When the exhaust fan blades rotate, the outside air is drawn between the air duct cover plate and the integrated controller body, and then drawn between the air duct frame and the integrated controller body through the guiding action of the guiding plate. Finally, the air passes through the guiding cover, through the heat dissipation frame and the exhaust fan and is discharged, thus forming an effective air duct, effectively improving the heat dissipation effect of the first heat conducting plate and the second heat conducting plate. At the same time, the water pump body of the water cooling mechanism injects the coolant into the heat conducting pipe. The coolant in the heat conducting pipe can take away part of the heat of the first heat conducting plate, and is injected into the heat dissipation pipe through the pipeline, and the heat dissipation fins are used to share the heat dissipation effect. When the air is drawn through the heat dissipation frame by the exhaust mechanism, the heat dissipation efficiency of the heat dissipation fins and the coolant in the heat dissipation pipe can be improved, and further the heat conducting and heat dissipation effect of the first heat conducting plate can be effectively improved. The device has a simple structure, high heat dissipation efficiency for the integrated controller body, and good heat dissipation effect.

[0021] 2. For the efficient heat dissipation device for a three-in-one integrated controller of an electric vehicle, through the settings of the air duct cover plate, the windward plate, the air duct frame, and the guiding plate, the air duct cover plate cooperates with the integrated controller body and the first heat conducting plate on the top surface of the integrated controller body to form an effective air duct. The windward plate can guide the air, thus improving the heat dissipation efficiency of the first heat conducting plate. At the same time, the air duct cover plate can protect the first heat conducting plate on the top surface of the integrated controller body. Similarly, the air duct frame cooperates with the integrated controller body and the second heat conducting plate on the back surface of the integrated controller body, and can also form an effective air duct. The guiding plate can also guide the air, thus improving the heat dissipation efficiency of the first heat conducting plate and the second heat conducting plate. At the same time, the air duct frame can protect the second heat conducting plate on the back surface of the integrated controller body.

[0022] 3. The efficient heat dissipation device for the three-in-one integrated controller of an electric vehicle, through the settings of the first air duct protection mechanism and the second air duct protection mechanism, the air duct frame of the second air duct protection mechanism can be disassembled and separated from the air duct cover plate and the integrated controller body, and the air duct cover plate can be disassembled on the two support bars to realize the separation from the integrated controller body, thus effectively achieving the effect of facilitating the installation and disassembly of the first air duct protection mechanism and the second air duct protection mechanism, and thus facilitating the maintenance and inspection of the device.

[0023] 4. The efficient heat dissipation device for the three-in-one integrated controller of an electric vehicle, through the settings of the air extraction mechanism, the water cooling mechanism and the heat dissipation mechanism, the air extraction mechanism performs air cooling on the integrated controller body by means of air extraction, the water cooling mechanism performs water cooling on the integrated controller body by means of coolant circulation, and the air extraction mechanism and the water cooling mechanism cooperate with each other to effectively improve the heat dissipation effect of the integrated controller body. At the same time, the coolant of the air cooling mechanism is cooled and circulated through the heat dissipation mechanism, and the air extraction mechanism can also assist the heat dissipation mechanism in heat dissipation while performing air cooling on the integrated controller body. Furthermore, the heat dissipation effect of the integrated controller body can be effectively improved. The air extraction mechanism can also assist the coolant of the water cooling mechanism in heat dissipation within the heat dissipation mechanism, thereby further effectively assisting in improving the heat dissipation effect of the water cooling mechanism on the integrated controller body.

[0024] 5. The efficient heat dissipation device for the three-in-one integrated controller of an electric vehicle, through the settings of the protection frame and the protection net, the protection net can protect the air extraction mechanism, and at the same time, the protection frame can be conveniently installed and disassembled from the air extraction cylinder, thus facilitating the maintenance of the air extraction mechanism, and then ensuring the stable operation of the overall heat dissipation function of the device. Through the setting of the relief groove, the two relief grooves on the air duct cover plate can not only effectively make way for both ends of the heat conduction pipe, but also facilitate the installation and disassembly of the air duct cover plate. Description of the Drawings

[0025] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented, so they do not have technical essential significance.

[0026] Figure 1 is a three-dimensional view of the overall structure;

[0027] Figure 2 is a three-dimensional exploded view of the overall structure;

[0028] Figure 3 is Figure 2 the enlarged view of part A in

[0029] Figure 4 is a front cross-sectional view of the heat dissipation mechanism;

[0030] Figure 5 It is a schematic front cross-sectional view of the exhaust mechanism.

[0031] Legend:

[0032] 1. Integrated controller body; 2. First heat conduction plate; 31. Heat conduction pipe; 32. Water pump body; 33. Fixing ring; 34. Liquid outlet connecting pipe; 41. Duct cover; 42. Windward plate; 43. Gap groove; 44. Support bar; 5. Second heat conduction plate; 61. Duct frame; 62. First fixing block; 63. Second fixing block; 64. Docking block; 65. Guide plate; 66. Guide cover; 71. Heat dissipation frame; 72. Heat dissipation fins; 73. Heat dissipation pipe; 74. Liquid inlet joint pipe; 75. Liquid discharge joint pipe; 81. Exhaust cylinder; 82. Fixing rod; 83. Exhaust blade; 84. Driven gear; 85. Exhaust motor; 86. Umbrella gear; 87. Protective frame; 88. Protective net. DETAILED DESCRIPTION

[0033] A three-in-one integrated controller high-efficiency heat dissipation device for electric vehicles, such as Figures 1-5As shown in the figure, it includes an integrated controller body 1. On the top surface of the integrated controller body 1, first heat-conducting plates 2 are evenly distributed. A water-cooling mechanism is arranged on the integrated controller body 1. The water-cooling mechanism includes a heat-conducting pipe 31. The heat-conducting pipe 31 reciprocates left and right and penetrates through each first heat-conducting plate 2 on the top surface of the integrated controller body 1. At the top end of the integrated controller body 1, a first air duct protection mechanism is arranged. The first air duct protection mechanism includes an air duct cover plate 41. The air duct cover plate 41 is erected on the top end of the integrated controller body 1. The inner top wall of the air duct cover plate 41 is in contact with the top ends of each first heat-conducting plate 2. On the back surface of the integrated controller body 1, second heat-conducting plates 5 are evenly distributed. The second heat-conducting plates 5 on the back surface of the integrated controller body 1 are arranged corresponding to the first heat-conducting plates 2 on the top surface of the integrated controller body 1. The top ends of each second heat-conducting plate 5 are respectively fixedly connected to the rear ends of the corresponding first heat-conducting plates 2. At the rear end of the integrated controller body 1, a second air duct protection mechanism is arranged. The second air duct protection mechanism includes an air duct frame 61. The air duct frame 61 is in a square-shaped structure. The air duct frame 61 is sleeved on the second heat-conducting plates 5 on the back surface of the integrated controller body 1. A flow guide plate 65 is fixedly connected to the inner top wall at the rear end of the air duct frame 61. The flow guide plate 65 is attached to the rear end of the second heat-conducting plate 5 on the back surface of the integrated controller body 1. A flow guide cover 66 is arranged at the rear end of the air duct frame 61. A heat dissipation mechanism is arranged at the rear end of the flow guide cover 66. The heat dissipation mechanism includes a heat dissipation frame 71. The heat dissipation frame 71 is in a square-shaped structure. Heat dissipation fins 72 are evenly distributed inside the heat dissipation frame 71. A heat-conducting pipe 73 is also arranged inside the heat dissipation frame 71. The heat-conducting pipe 73 reciprocates left and right and penetrates through each heat dissipation fin 72 inside the heat dissipation frame 71. A suction mechanism is arranged at the rear end of the heat dissipation frame 71. The suction mechanism includes a suction cylinder 81. A suction blade 83 is arranged inside the suction cylinder 81. The water-cooling mechanism also includes a water pump body 32. Fixing rings 33 are respectively fixedly sleeved on the front and rear ends of the water pump body 32. The left ends of the two fixing rings 33 are fixedly installed on the right side of the integrated controller body 1. A liquid outlet connecting pipe 34 is arranged at the liquid outlet of the water pump body 32. The other end of the liquid outlet connecting pipe 34 is communicated with the heat-conducting pipe 31. A windward plate 42 is fixedly connected to the front end of the air duct cover plate 41. The windward plate 42 is inclined. Support bars 44 are respectively fixedly installed at the bottom parts of the left and right ends of the air duct cover plate 41 through bolts. The two support bars 44 are respectively fixedly connected to the left and right sides at the top end of the integrated controller body 1. Two relief grooves 43 are opened at the right end of the air duct cover plate 41. The two relief grooves 43 at the right end of the air duct cover plate 41 are adapted to the heat-conducting pipe 31. First fixing blocks 62 are respectively fixedly connected to the left and right sides at the top end of the air duct frame 61. The two first fixing blocks 62 are respectively fixedly installed with the rear end of the air duct cover plate 41 through bolts. Second fixing blocks 63 are respectively fixedly connected to the left and right sides at the bottom end of the air duct frame 61. Docking blocks 64 are respectively fixedly installed at the front ends of the two second fixing blocks 63 through bolts. The two docking blocks 64 are respectively fixedly connected to the left and right sides at the rear end of the bottom of the integrated controller body 1. The flow guide cover 66 is in a trapezoidal frustum structure.The inside of the fairing 66 is hollowed out, and both ends of the front end of the fairing 66 are open. The front end of the fairing 66 is fixedly connected to the bottom end of the back surface of the air duct frame 61. The heat dissipation frame 71 is fixedly installed at the back end of the fairing 66. The upper and lower ends of the right side of the heat dissipation frame 71 are respectively fixedly sleeved with a liquid inlet joint pipe 74 and a liquid discharge joint pipe 75. The liquid inlet joint pipe 74 and the liquid discharge joint pipe 75 are respectively fixedly sleeved at both ends of the heat dissipation pipe 73. The other end of the liquid inlet joint pipe 74 is connected to the other end of the heat conduction pipe 31 through a pipeline. The liquid discharge joint pipe 75 is connected to the liquid inlet of the water pump body 32 through a pipeline. A fixed rod 82 is fixedly connected to the inner side wall of the air extraction cylinder 81. The air extraction blade 83 is connected to the fixed rod 82 through a rotating shaft. A driven gear 84 is fixedly sleeved on the outer wall of the rotating shaft of the air extraction blade 83. An air extraction motor 85 is fixedly installed on the outer side wall of the top end of the air extraction cylinder 81. The transmission shaft of the air extraction motor 85 is movably sleeved with the air extraction cylinder 81. An umbrella gear 86 is fixedly sleeved on the outer wall of the transmission shaft of the air extraction motor 85. The bottom end of the umbrella gear 86 is meshed with the driven gear 84 through gear teeth. A protective frame 87 is fixedly installed at the back end of the air extraction cylinder 81. The protective frame 87 has an annular structure, and a protective net 88 is arranged inside the protective frame 87.,

[0034] The working principle of the present invention: When the integrated controller body 1 is running, heat is conducted through the first heat conduction plate 2 on the top surface of the integrated controller body 1 and the second heat conduction plate 5 on the back surface of the integrated controller body 1. By increasing the contact area with air through the first heat conduction plate 2 and the second heat conduction plate 5, the purpose of heat dissipation is achieved. Start the air extraction motor 85 of the air extraction mechanism. The air extraction motor 85 drives the rotation of the umbrella gear 86 through the transmission shaft. The umbrella gear 86 drives the rotation of the driven gear 84 through gear teeth. The driven gear 84 drives the air extraction blade 83 to rotate inside the air extraction cylinder 81. When the air extraction blade 83 rotates, it extracts the outside air between the air duct cover plate 41 and the integrated controller body 1, and through the guiding action of the guiding plate 65, it is extracted between the air duct frame 61 and the integrated controller body 1. Finally, the air passes through the fairing 66, passes through the heat dissipation frame 71 and the air extraction cylinder 81 and is discharged, thus forming an effective air duct, effectively improving the heat dissipation effect of the first heat conduction plate 2 and the second heat conduction plate 5. At the same time, the water pump body 32 of the water cooling mechanism injects the coolant into the heat conduction pipe 31. The coolant in the heat conduction pipe 31 can take away part of the heat of the first heat conduction plate 2, and is injected into the heat dissipation pipe 73 through a pipeline, and the heat dissipation effect is shared through the heat dissipation fins 72. When the air is pumped through the heat dissipation frame 71 by the air extraction mechanism, it can improve the heat dissipation efficiency of the coolant in the heat dissipation fins 72 and the heat dissipation pipe 73, and further effectively improve the heat conduction and heat dissipation effect of the first heat conduction plate 2. The device has a simple structure, high heat dissipation efficiency for the integrated controller body 1, and good heat dissipation effect.

[0035] Through the settings of the air duct cover plate 41, the windward plate 42, the air duct frame 61, and the deflector 65, the air duct cover plate 41 cooperates with the integrated controller body 1 and the first heat conducting plate 2 on the top surface of the integrated controller body 1 to form an effective air duct. The windward plate 42 can guide the air flow, thereby improving the heat dissipation efficiency of the first heat conducting plate 2. At the same time, the air duct cover plate 41 can protect the first heat conducting plate 2 on the top surface of the integrated controller body 1. Similarly, the air duct frame 61 cooperates with the integrated controller body 1 and the second heat conducting plate 5 on the back surface of the integrated controller body 1 to also form an effective air duct. The deflector 65 can also guide the air flow, thereby improving the heat dissipation efficiency of the first heat conducting plate 2 and the second heat conducting plate 5. At the same time, the air duct frame 61 can protect the second heat conducting plate 5 on the back surface of the integrated controller body 1.

[0036] Through the settings of the first air duct protection mechanism and the second air duct protection mechanism, the air duct frame 61 of the second air duct protection mechanism can be disassembled and separated from the air duct cover plate 41 and the integrated controller body 1. The air duct cover plate 41 can be disassembled on the two support bars 44 to separate from the integrated controller body 1, thus effectively achieving the effect of facilitating the installation and disassembly of the first air duct protection mechanism and the second air duct protection mechanism, and facilitating the maintenance and inspection of the device.

[0037] Through the settings of the air extraction mechanism, the water cooling mechanism, and the heat dissipation mechanism, the air extraction mechanism conducts air-cooled heat dissipation on the integrated controller body 1 by extracting air. The water cooling mechanism conducts water-cooled heat dissipation on the integrated controller body 1 by circulating coolant. The air extraction mechanism and the water cooling mechanism cooperate with each other to effectively improve the heat dissipation effect of the integrated controller body 1. At the same time, the coolant of the air cooling mechanism is cooled and circulated through the heat dissipation mechanism. While the air extraction mechanism conducts air-cooled heat dissipation on the integrated controller body 1, it can also assist the heat dissipation mechanism in heat dissipation, thereby effectively improving the heat dissipation effect of the integrated controller body 1. The air extraction mechanism can also assist the coolant of the water cooling mechanism in dissipating heat in the heat dissipation mechanism, thereby further effectively assisting in improving the heat dissipation effect of the water cooling mechanism on the integrated controller body 1.

[0038] Through the settings of the protection frame 87 and the protection net 88, the protection net 88 can protect the air extraction mechanism. At the same time, the protection frame 87 can be conveniently installed and disassembled from the air extraction cylinder 81, thus facilitating the maintenance of the air extraction mechanism, and further ensuring the stable operation of the overall heat dissipation function of the device. Through the settings of the relief grooves 43, the two relief grooves 43 on the air duct cover plate 41 can not only effectively provide space for the two ends of the heat conducting tube 31, but also facilitate the installation and disassembly of the air duct cover plate 41.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An efficient heat dissipation device for a three-in-one integrated controller of an electric vehicle, comprising an integrated controller body (1), characterized in that: The top surface of the integrated controller body (1) is evenly distributed with first heat conducting plates (2). A water cooling mechanism is provided on the integrated controller body (1). The water cooling mechanism includes a heat conducting pipe (31). The heat conducting pipe (31) reciprocally penetrates left and right on each first heat conducting plate (2) on the top surface of the integrated controller body (1). A first air duct protection mechanism is provided at the top end of the integrated controller body (1). The first air duct protection mechanism includes an air duct cover plate (41). The air duct cover plate (41) is erected on the top end of the integrated controller body (1). The inner top wall of the air duct cover plate (41) is in contact with the top end of each first heat conducting plate (2). The back surface of the integrated controller body (1) is evenly distributed with second heat conducting plates (5). The second heat conducting plates (5) on the back surface of the integrated controller body (1) are arranged corresponding to the first heat conducting plates (2) on the top surface of the integrated controller body (1). The top end of each second heat conducting plate (5) is fixedly connected to the rear end of the corresponding first heat conducting plate (2). A second air duct protection mechanism is provided at the rear end of the integrated controller body (1). The second air duct protection mechanism includes an air duct frame (61). The air duct frame (61) is in a square structure. The air duct frame (61) is sleeved on the second heat conducting plates (5) on the back surface of the integrated controller body (1). A flow guiding plate (65) is fixedly connected to the inner top wall at the rear end of the air duct frame (61). The flow guiding plate (65) is in contact with the rear end of the second heat conducting plates (5) on the back surface of the integrated controller body (1). A flow guiding cover (66) is provided at the rear end of the air duct frame (61). A heat dissipation mechanism is provided at the rear end of the flow guiding cover (66). The heat dissipation mechanism includes a heat dissipation frame (71). The heat dissipation frame (71) is in a square structure. Heat dissipation fins (72) are evenly distributed inside the heat dissipation frame (71). A heat conducting pipe (73) is also provided inside the heat dissipation frame (71). The heat conducting pipe (73) reciprocally penetrates left and right on each heat dissipation fin (72) inside the heat dissipation frame (71). An air extraction mechanism is provided at the rear end of the heat dissipation frame (71). The air extraction mechanism includes an air extraction cylinder (81). An air extraction blade (83) is provided inside the air extraction cylinder (81). The water cooling mechanism further includes a water pump body (32). Fixing rings (33) are fixedly sleeved on the front and rear ends of the water pump body (32) respectively. The left ends of the two fixing rings (33) are fixedly installed on the right side of the integrated controller body (1). A liquid outlet connecting pipe (34) is provided at the liquid outlet of the water pump body (32). The other end of the liquid outlet connecting pipe (34) is communicated with the heat conducting pipe (31). The heat dissipation frame (71) is fixedly installed at the rear end of the flow guiding cover (66). The upper and lower ends on the right side of the heat dissipation frame (71) are respectively fixedly sleeved with a liquid inlet joint pipe (74) and a liquid discharge joint pipe (75). The liquid inlet joint pipe (74) and the liquid discharge joint pipe (75) are respectively fixedly sleeved on the two ends of the heat conducting pipe (73). The liquid inlet joint pipe (74) is connected to the other end of the heat conducting pipe (31) through a pipeline. The liquid discharge joint pipe (75) is connected to the liquid inlet of the water pump body (32) through a pipeline.

2. The efficient heat dissipation device for a three-in-one integrated controller used in an electric vehicle according to claim 1, characterized in that: The front end of the air duct cover plate (41) is fixedly connected to a windward plate (42), which is arranged in an inclined manner. The bottoms of the left and right ends of the air duct cover plate (41) are respectively fixedly installed with support bars (44) by bolts. The two support bars (44) are respectively fixedly connected to the left and right sides of the top of the integrated controller body (1). The right end of the air duct cover plate (41) is provided with two clearance grooves (43), and the two clearance grooves (43) at the right end of the air duct cover plate (41) are adapted to the heat conduction pipe (31).

3. The high-efficiency heat dissipation device for a three-in-one integrated controller used in an electric vehicle according to claim 1, wherein: The left and right sides of the top of the air duct frame (61) are respectively fixedly connected with first fixing blocks (62), and the two first fixing blocks (62) are respectively fixedly installed with the rear end of the air duct cover (41) by bolts. The left and right sides of the bottom of the air duct frame (61) are respectively fixedly connected with second fixing blocks (63), and the front ends of the two second fixing blocks (63) are respectively fixedly installed with docking blocks (64) by bolts. The two docking blocks (64) are respectively fixedly connected to the left and right sides of the rear end of the bottom of the integrated controller body (1).

4. The high-efficiency heat dissipation device for a three-in-one integrated controller for an electric vehicle according to claim 3, characterized in that: The air guide cover (66) is a trapezoidal platform structure, the interior of the air guide cover (66) is hollowed out, and both ends of the front end of the air guide cover (66) are open. The front end of the air guide cover (66) is fixedly connected to the bottom end of the back of the air duct frame (61).

5. The high-efficiency heat dissipation device for a three-in-one integrated controller used in an electric vehicle according to claim 1, wherein: The inner side wall of the exhaust cylinder (81) is fixedly connected to a fixing rod (82), the exhaust blade (83) is connected to the fixing rod (82) via a rotating shaft, and the outer wall of the rotating shaft on the exhaust blade (83) is fixedly sleeved with a driven gear (84).

6. The high-efficiency heat dissipation device for a three-in-one integrated controller for an electric vehicle according to claim 5, characterized in that: An exhaust motor (85) is fixedly mounted on the outer side wall of the top end of the exhaust cylinder (81), and the transmission shaft of the exhaust motor (85) is in a movable sleeve relationship with the exhaust cylinder (81). A bevel gear (86) is fixedly sleeved on the outer side wall of the transmission shaft of the exhaust motor (85), and the bottom end of the bevel gear (86) is meshed with the driven gear (84) through gear teeth.

7. An efficient heat dissipation device for a three-in-one integrated controller of an electric vehicle according to claim 6, characterized in that: A protective frame (87) is fixedly mounted on the rear end of the exhaust tube (81). The protective frame (87) is an annular structure, and a protective net (88) is provided inside the protective frame (87).

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