A new energy vehicle heat dissipation device

Abstract

The present invention relates to the field of new energy vehicles, and specifically to a heat dissipation device for new energy vehicles, including an air guide mechanism and an auxiliary heat dissipation mechanism, an air passage is provided inside a vehicle chassis, a lifting groove is provided on the bottom wall of the air passage, the air guide mechanism includes an air guide frame, a driving component, an air suction component and an air inlet transmission component, a sealing plate is provided inside the air guide frame, an air inlet is formed between the sealing plate and the inner wall of the head end of the air guide frame, an air inlet channel is formed between the sealing plate and the inner bottom wall of the air guide frame, the driving component is arranged in the air passage, the driving component is connected to the air guide frame in a transmission manner, the air suction component is arranged at the bottom of the air passage, the air inlet transmission component is arranged on the air inlet channel and the driving component, and the air inlet transmission component is connected to the air suction component in a transmission manner, the air guide mechanism is arranged at the bottom of the air passage, and the auxiliary heat dissipation mechanism is arranged on the top wall of the air passage. The present invention can allow cold air to stably enter the air passage, thereby improving the heat dissipation effect of the battery.

Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and in particular to a heat dissipation device for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures.

[0003] The Chinese invention patent with the announcement number CN115050992B discloses an auxiliary heat dissipation device for a hydrogen fuel cell vehicle, including an auxiliary radiator, an air guide plate, a telescopic motor and a rotating motor; the auxiliary radiator is connected in parallel to the circulating heat dissipation pipeline of the hydrogen fuel cell; an air passage is provided inside the vehicle chassis, the air passage is distributed along the longitudinal direction of the vehicle, and the rear end of the air passage passes through the vehicle chassis; the bottom wall of the air passage is provided with an air inlet, the rear side of the air guide plate is transversely hinged to the lower surface of the vehicle chassis through a hinge shaft, and the air guide plate is located below the air inlet; the telescopic motor is installed in the air passage and the telescopic rod of the telescopic motor is hinged to the air guide plate, and the air guide plate is driven by the telescopic motor to open or close the air inlet. This invention improves the heat dissipation capacity through the main radiator and the auxiliary radiator, increases the heat dissipation area and heat dissipation efficiency, and meets the heat dissipation requirements of hydrogen fuel cells.

[0004] However, the above patent still has the following shortcomings in actual use: the patent uses an air guide plate to open the air inlet, and uses the cold air entering from the air inlet to exchange heat with the sub-radiator to achieve the purpose of heat dissipation, but the cold air entering from the air inlet will be blocked by the inclined sub-radiator. Most of the cold air is affected by the obstruction of the sub-radiator and forms a return air flow. The return air flow affects the entry of new cold air, that is, the amount of new cold air entering the air passage is small, so the heat dissipation efficiency of the battery is still poor. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a heat dissipation device for a new energy vehicle to solve the problem of how to improve the heat dissipation efficiency of the battery proposed in the above background technology.

[0006] The technical solution of the present invention is:

[0007] A heat dissipation device for a new energy vehicle comprises an air guide mechanism and an auxiliary heat dissipation mechanism, wherein an air passage is arranged inside the chassis of the vehicle, the air passage is distributed along the longitudinal direction of the vehicle, and the rear end of the air passage passes through the chassis of the vehicle, and a lifting groove is arranged on the bottom wall of the air passage, and the air guide mechanism comprises an air guide frame slidably matched with the lifting groove, a driving component for driving the air guide frame to lift and lower, an air suction component for sucking cold air into the air passage, and an air inlet transmission component for driving the air suction component to work, a horizontally arranged sealing plate is arranged inside the air guide frame, and a sealing plate is formed between the sealing plate and the inner wall of the head end of the air guide frame An air inlet is formed, an air inlet channel connected to the air inlet is formed between the sealing plate and the inner bottom wall of the air guide frame, the driving assembly is arranged in the air passage, the driving assembly is transmission connected to the air guide frame, the air suction assembly is arranged at the bottom of the air passage, the air inlet transmission assembly is arranged on the air inlet channel and the driving assembly, and the air inlet transmission assembly is transmission connected to the air suction assembly, the air guide mechanism is arranged at the bottom of the air passage, the auxiliary heat dissipation mechanism is arranged on the top wall of the air passage, and the auxiliary heat dissipation mechanism is located directly above the air suction assembly, and the auxiliary heat dissipation mechanism is connected in parallel to the circulating heat dissipation pipeline of the battery.

[0008] Preferably, the driving assembly includes a transverse plate, a first guide rod and a first telescopic motor, the transverse plate is provided with a guide seat, the transverse plate is arranged in the wind passage, the first guide rod is vertically arranged on one end of the top of the air guide frame, and the first guide rod is slidably arranged in the guide seat, the first telescopic motor is vertically arranged on the top of the transverse plate, and the output end of the first telescopic motor is connected to the other end of the top of the air guide frame.

[0009] Preferably, the air suction assembly includes at least two air suction components, which include a circular frame, a first rotating seat and a first rotating shaft. The outer wall of the first rotating seat is provided with a plurality of connecting rods arranged at equal angles along its circumference. The bottom of the first rotating shaft is provided with a first mounting plate, and the first mounting plate is provided with a plurality of first blades arranged at equal angles along its circumference. The bottom of the air passage is provided with at least two through holes, the circular frame is installed in the through holes, the connecting rods are connected to the inner wall of the circular frame, the first rotating shaft is rotatably arranged on the first rotating seat, and the first rotating shaft is transmission-connected to the air inlet transmission assembly.

[0010] Preferably, the air inlet transmission assembly includes a second rotating seat, a second rotating shaft, a third rotating seat and a third rotating shaft, a second mounting plate is provided at the tail end of the second rotating shaft, a plurality of second blades are provided on the second mounting plate and are arranged at equal angles along its circumference, a rotating sleeve is rotatably provided on the second rotating shaft, a first bevel gear is provided between the rotating sleeve and the second mounting plate, a limit rotating seat is provided on the rotating sleeve, a limit rotating disc is provided in the limit rotating seat, a synchronous shaft coaxial with the limit rotating disc is provided on the limit rotating disc, a second bevel gear is provided on the synchronous shaft, and a polygonal cross-section is provided on the top of the synchronous shaft and is integrally connected with the synchronous shaft. The 3rd rotating shaft is provided with a first groove wheel at the bottom, and the 3rd rotating shaft and the first groove wheel are provided with a sliding groove which is slidably matched with the sliding rod. The top of the first rotating shaft is provided with a second groove wheel, and the sealing plate is provided with a rotating hole which is slidably matched with the synchronous shaft. The second rotating seat is arranged on the inner wall of the head end of the air guide frame, and the head end of the second rotating shaft is rotatably arranged on the second rotating seat. The third rotating seat is inverted and arranged on the bottom of the cross plate. The third rotating shaft is rotatably arranged on the third rotating seat. The first bevel tooth and the second bevel tooth are meshed, and the first groove wheel and all the second groove wheels are connected by a transmission belt.

[0011] Preferably, the cross-section of the air guide frame is an isosceles trapezoid.

[0012] Preferably, a horizontally arranged hanging plate is provided on the outer wall of the head end of the air guide frame, and at least two sealing plates for blocking the through holes and two second guide rods are provided on the hanging plate, and two guide holes slidably matched with the second guide rods are provided at the bottom of the air passage.

[0013] Preferably, the air guide frame, the suspension plate, the sealing plate and the second guide rod are all made of heat-conducting metal materials.

[0014] Preferably, the auxiliary heat dissipation mechanism includes a first auxiliary radiator, a second auxiliary radiator, a third auxiliary radiator, a fourth auxiliary radiator, a guide slide and a second telescopic motor. The first auxiliary radiator, the second auxiliary radiator, the third auxiliary radiator and the fourth auxiliary radiator are all rectangular bodies. The tail end of the first auxiliary radiator and both ends of the third auxiliary radiator are provided with a symmetrically arranged first connecting seat and a fourth rotating seat. A sealing hole is provided on the side wall of the first connecting seat. The head end of the fourth auxiliary radiator and both ends of the second auxiliary radiator are provided with a symmetrically arranged second connecting seat and a connecting seat. The side wall of the second connecting seat is provided with a connecting seat that rotates with the sealing hole. Through pipe, a matching shaft for rotational matching of the connecting seat is provided on the side wall of the connecting seat, a hinge joint is provided at the tail end of the second sub-radiator and the tail end of the fourth sub-radiator, two sliding blocks are slidably provided in the guide slide seat, and a hinge seat is provided on the sliding block, the head end of the first sub-radiator is transversely hinged on the inner top wall of the air passage through a hinge shaft, the liquid inlet pipe of the first sub-radiator and the liquid outlet pipe of the fourth sub-radiator are both connected to the circulating heat dissipation pipeline, the two hinge joints are respectively hinged to the two hinge seats, the second telescopic motor is horizontally arranged on the inner top wall of the air passage, and the output end of the second telescopic motor is connected to one of the hinge seats.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, the present invention changes the way of air intake, abandons the original air guide plate, and adopts a driving component to move the air guide frame downward to open the air intake channel. After the air intake transmission component works, it can drive the air suction component to suck the external cold air into the air passage, so that the cold air can stably enter the air passage, and the auxiliary heat dissipation is completed by contacting the cold air through the auxiliary heat dissipation mechanism, thereby improving the heat dissipation efficiency.

[0017] Secondly, the present invention rotates the second mounting disk through the driving force generated on all the second blades when cold air enters the air inlet channel, and then rotates the first groove wheel through the cooperation among the second rotating shaft, the rotating sleeve, the synchronous shaft, the sliding rod, the sliding groove, the first bevel tooth and the second bevel tooth, and rotates all the second groove wheels by utilizing the first groove wheel and the transmission belt. After the second groove wheel rotates, the first mounting disk and all the first blades can rotate, and all the first blades can automatically suck the cold air from the outside into the through hole.

[0018] Thirdly, the present invention adopts the first auxiliary radiator, the second auxiliary radiator, the third auxiliary radiator and the fourth auxiliary radiator which are hinged in sequence to expand the entire auxiliary heat dissipation area. The auxiliary heat dissipation area can also be adjusted by the second telescopic motor, thereby further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a new energy vehicle heat dissipation device of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of a new energy vehicle heat dissipation device of the present invention. Figure 2 ;

[0021] Figure 3 It is a structural schematic diagram of the air guide mechanism;

[0022] Figure 4 It is a schematic diagram of the local structure of the air guide mechanism;

[0023] Figure 5 It is a partial cross-sectional view of the air guide mechanism;

[0024] Figure 6 It is a structural schematic diagram of the air suction component;

[0025] Figure 7 It is a partial structural schematic diagram of the auxiliary heat dissipation mechanism;

[0026] Figure 8 It is a partial structural cross-sectional view of the auxiliary heat dissipation mechanism;

[0027] Fig. 9 for Figure 8 Enlarged view of point A in the middle.

[0028] In the figure:

[0029] 1. Wind passage; 11. Through hole; 12. Block; 2. Wind guide mechanism; 21. Wind guide frame; 211. Closing plate; 212. Air inlet; 213. Air inlet channel; 214. Hanging plate; 215. Closing plate; 216. Second guide rod; 217. Position-limiting step; 22. Driving assembly; 221. Transverse plate; 222. First guide rod; 223. First telescopic motor; 224. Guide seat; 23. Air suction assembly; 231. Round frame; 232. First rotating seat; 233. Second groove wheel; 234. Connecting rod; 235. First mounting plate; 236. First blade; 24. Air inlet transmission assembly; 241. Second rotating seat; 242. Second rotating shaft; 2421. Rotating sleeve; 2422. Position-limiting rotating disc ; 2423, synchronization shaft; 2424, second bevel gear; 2425, slide rod; 2426, limit rotating seat; 243, third rotating seat; 244, third rotating shaft; 2441, first groove wheel; 2442, slide groove; 245, second mounting plate; 246, second blade; 247, first bevel gear; 3, auxiliary heat dissipation mechanism; 30, second telescopic motor; 31, first auxiliary radiator; 32, second auxiliary radiator; 321, hinged head; 33, third auxiliary radiator; 34, fourth auxiliary radiator; 35, guide slide; 351, hinged seat; 36, first connecting seat; 361, sealing hole; 37, fourth rotating seat; 38, second connecting seat; 381, connecting pipe; 39, connecting seat; 4, spray assembly. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-9 The present invention describes the above technical solution in detail through the following embodiments:

[0032] A heat dissipation device for a new energy vehicle comprises an air guide mechanism 2 and an auxiliary heat dissipation mechanism 3. An air passage 1 is arranged inside the vehicle chassis. The air passage 1 is distributed along the longitudinal direction of the vehicle, and the rear end of the air passage 1 passes through the vehicle chassis. A lifting groove is arranged on the bottom wall of the air passage 1. The air guide mechanism 2 comprises an air guide frame 21 which is slidably matched with the lifting groove, a driving component 22 for driving the air guide frame 21 to rise and fall, an air suction component 23 for sucking cold air into the air passage 1, and an air inlet transmission component 24 for driving the air suction component 23 to work. A horizontally arranged sealing plate 211 is arranged inside the air guide frame 21, and an air inlet 2 is formed between the sealing plate 211 and the inner wall of the head end of the air guide frame 21. 12, an air inlet channel 213 connected with the air inlet 212 is formed between the sealing plate 211 and the inner bottom wall of the air guide frame 21, the driving component 22 is arranged in the air passage 1, the driving component 22 is connected to the air guide frame 21 by transmission, the air suction component 23 is arranged at the bottom of the air passage 1, the air inlet transmission component 24 is arranged on the air inlet channel 213 and the driving component 22, and the air inlet transmission component 24 is connected to the air suction component 23 by transmission, the air guide mechanism 2 is arranged at the bottom of the air passage 1, the auxiliary heat dissipation mechanism 3 is arranged on the top wall of the air passage 1, and the auxiliary heat dissipation mechanism 3 is located directly above the air suction component 23, and the auxiliary heat dissipation mechanism 3 is connected in parallel to the circulating heat dissipation pipeline of the battery.

[0033] The present invention abandons the original wind guide plate and adopts an wind guide frame 21 to allow cold air to enter the air inlet channel 213 horizontally, and then enter the air passage 1 from the air inlet 212. The lifting and lowering of the wind guide frame 21 is realized by the driving component 22. The driving component 22 includes a horizontal plate 221, a first guide rod 222 and a first telescopic motor 223. The horizontal plate 221 is provided with a guide seat 224. The horizontal plate 221 is arranged in the air passage 1. The first guide rod 222 is vertically arranged on one end of the top of the wind guide frame 21, and the first guide rod 222 is slidably arranged in the guide seat 224. The first telescopic motor 223 is vertically arranged on the top of the horizontal plate 221, and the output end of the first telescopic motor 223 is connected to the other end of the top of the wind guide frame 21.

[0034] The first telescopic motor 223 can drive the air guide frame 21 to move downward, and the air guide frame 21 can be extended from the bottom of the air passage 1 until the bottom surface of the sealing plate 211 is coplanar with the bottom surface of the air passage 1. Then, the air guide frame 21 stops moving, and the air inlet passage 213 is fully opened. During the descent of the air guide frame 21, the first guide rod 222 and the guide seat 224 maintain stability during movement.

[0035] Preferably, a limiting step 217 may be further provided at the top of the air guide frame 21 , so that the descending distance of the air guide frame 21 can be limited.

[0036] Preferably, a block 12 may be further provided at the bottom of the air passage 1. After the air guide frame 21 is retracted into the lifting slot, a gap may be generated between the air inlet channel 213 and the air passage 1. Cold air can still enter the air passage 1 through the gap, and the block 12 can block the gap.

[0037] After the cold air enters the air inlet channel 213, the air inlet transmission assembly 24 works, and the air inlet transmission assembly 24 is used to drive the air suction assembly 23 so that the external cold air can be sucked into the air passage 1. The air suction assembly 23 includes at least two air suction components, and the air suction components include a circular frame 231, a first rotating seat 232 and a first rotating shaft. The outer wall of the first rotating seat 232 is provided with a plurality of connecting rods 234 arranged at equal angles along its circumference, and the bottom of the first rotating shaft is provided with a first mounting plate 235. The first mounting plate 235 is provided with a plurality of first blades 236 arranged at equal angles along its circumference. At least two through holes 11 are provided at the bottom of the air passage 1, and the circular frame 231 is installed in the through hole 11. The connecting rod 234 is connected to the inner wall of the circular frame 231. The first rotating shaft is rotatably arranged on the first rotating seat 232, and the first rotating shaft is transmission-connected to the air inlet transmission assembly 24.

[0038] The air inlet transmission assembly 24 includes a second rotating seat 241, a second rotating shaft 242, a third rotating seat 243 and a third rotating shaft 244. The tail end of the second rotating shaft 242 is provided with a second mounting plate 245, and the second mounting plate 245 is provided with a plurality of second blades 246 arranged at equal angles along its circumference. A rotating sleeve 2421 is rotatably provided on the second rotating shaft 242, and a first bevel gear 247 is provided between the rotating sleeve 2421 and the second mounting plate 245. A limiting rotating seat 2426 is provided on the rotating sleeve 2421, and a limiting rotating disc 2422 is provided in the limiting rotating seat 2426. A synchronous shaft 2423 coaxial with the limiting rotating disc 2422 is provided on the limiting rotating disc 2422, and a second bevel gear 2424 is provided on the synchronous shaft 2423. The top of the synchronous shaft 2423 is provided with a multi-sided cross-section and is connected to the synchronous shaft 2423 as a whole. shaped slide bar 2425, a first groove wheel 2441 is provided at the bottom of the third rotating shaft 244, a slide groove 2442 that slidably cooperates with the slide bar 2425 is opened on the third rotating shaft 244 and the first groove wheel 2441, a second groove wheel 233 is provided on the top of the first rotating shaft, a rotating hole that slidably and rotatably cooperates with the synchronous shaft 2423 is provided on the sealing plate 211, the second rotating seat 241 is arranged on the inner wall of the head end of the air guide frame 21, the head end of the second rotating shaft 242 is rotatably arranged on the second rotating seat 241, the third rotating seat 243 is invertedly arranged on the bottom of the cross plate 221, the third rotating shaft 244 is rotatably arranged on the third rotating seat 243, the first bevel tooth 247 and the second bevel tooth 2424 are meshed, and the first groove wheel 2441 and all the second groove wheels 233 are connected by transmission belt transmission.

[0039] When the air guide frame 21 descends, the second rotating shaft 242 also moves downward, and the second rotating shaft 242 can drive the rotating sleeve 2421 and the synchronous shaft 2423 to move downward synchronously, and the synchronous shaft 2423 drives the sliding rod 2425 to rotate in the sliding groove 2442. After the sliding rod 2425 moves downward, it does not affect the position of the first groove wheel 2441, and the sliding rod 2425 is still in a connected state with the first groove wheel 2441 and the third rotating shaft 244. After the cold air enters the air inlet channel 213, the flowing cold air can drive the second blade 246, and the second blade 246 drives the second mounting plate 245 to rotate. After the second mounting plate 245 rotates, it drives the second rotating shaft 242 to rotate on the second rotating seat 241 and the rotating sleeve 2421, and the first bevel gear 247 also rotates accordingly. 47 drives the second bevel gear 2424 to rotate, the second bevel gear 2424 drives the synchronous shaft 2423 and the slide bar 2425 to rotate, the slide bar 2425 drives the first groove wheel 2441 and the third rotating shaft 244 to rotate, because the cross section of the slide bar 2425 is polygonal, the slide bar 2425 will not slip when driving the third rotating shaft 244 to rotate, and the driving force can be stably transmitted. After the first groove wheel 2441 rotates, it drives the transmission belt to rotate, and the transmission belt drives all the second groove wheels 233 to rotate. The second groove wheel 233 drives the first rotating shaft to rotate, and the first mounting plate 235 and all the first blades 236 also rotate with the first rotating shaft. After all the first blades 236 rotate, adsorption force can be generated, and the adsorption force can adsorb the external cold air into the air passage 1.

[0040] The cross-section of the air guide frame 21 is an isosceles trapezoid. This arrangement allows the air inlet channel 213 to be trumpet-shaped. When the cold air enters the air inlet channel 213, it is squeezed and the pressure increases. The pressure in the air passage 1 is lower than the pressure in the air inlet channel 213. Based on the pressure difference, the cold air can stably enter the air passage 1.

[0041] A horizontally arranged hanging plate 214 is provided on the outer wall of the head end of the air guide frame 21, and at least two closing plates 215 and two second guide rods 216 for blocking the through hole 11 are provided on the hanging plate 214. Two guide holes slidably matched with the second guide rods 216 are provided at the bottom of the air passage 1. When the air guide frame 21 is not moved downward, the closing plate 215 can close the through hole 11, and the closing plate 215 protects the components in the through hole 11. When the air guide frame 21 moves downward, the hanging plate 214 can move downward synchronously, and the closing plate 215 also moves away from the through hole 11, so that the through hole 11 is opened, and the cooperation between the second guide rod 216 and the guide hole can make the hanging plate 214 rise and fall stably.

[0042] The air guide frame 21, the suspension plate 214, the sealing plate 215 and the second guide rod 216 are all made of heat-conducting metal materials. The heat in the air passage 1 can be transferred to the above components by utilizing the heat-conducting properties of the heat-conducting metal materials. The outside cold air can exchange heat with the above components after contacting, thereby also achieving the purpose of heat dissipation. The heat-conducting metal material can be copper or aluminum nitride, but is not limited to this. In addition to having good thermal conductivity, copper and aluminum nitride are much cheaper than diamond and silver, which have better effects, and have a better cost-effectiveness.

[0043] The present invention also adopts an auxiliary heat dissipation mechanism 3 to replace an auxiliary radiator, and the auxiliary heat dissipation mechanism 3 includes a first auxiliary radiator 31, a second auxiliary radiator 32, a third auxiliary radiator 33, a fourth auxiliary radiator 34, a guide slide 35 and a second telescopic motor 30. The first auxiliary radiator 31, the second auxiliary radiator 32, the third auxiliary radiator 33 and the fourth auxiliary radiator 34 are all rectangular bodies. The tail end of the first auxiliary radiator 31 and the two ends of the third auxiliary radiator 33 are provided with a symmetrically arranged first connecting seat 36 and a fourth rotating seat 37. The side wall of the first connecting seat 36 is provided with a sealing hole 361. The head end of the fourth auxiliary radiator 34 and the two ends of the second auxiliary radiator 32 are provided with a symmetrically arranged second connecting seat 38 and a connecting seat 39. The side wall of the second connecting seat 38 is provided with a sealing hole 361. A connecting pipe 381 is provided which is rotatably matched with the sealing hole 361, a matching shaft which is rotatably matched with the connecting seat 39 is provided on the side wall of the connecting seat 39, a hinge head 321 is provided at the tail end of the second auxiliary radiator 32 and the tail end of the fourth auxiliary radiator 34, two sliders are slidably provided in the guide slide 35, and a hinge seat 351 is provided on the slider, the head end of the first auxiliary radiator 31 is transversely hinged to the inner top wall of the air passage 1 through a hinge shaft, the liquid inlet pipe of the first auxiliary radiator 31 and the liquid outlet pipe of the fourth auxiliary radiator 34 are both connected to the circulating heat dissipation pipeline, the two hinge heads 321 are respectively hinged to the two hinge seats 351, the second telescopic motor 30 is horizontally arranged on the inner top wall of the air passage 1, and the output end of the second telescopic motor 30 is connected to one of the hinge seats 351.

[0044] The first auxiliary radiator 31, the second auxiliary radiator 32, the third auxiliary radiator 33 and the fourth auxiliary radiator 34 are hinged in sequence to expand the area of ​​the entire auxiliary heat dissipation. The area of ​​the auxiliary heat dissipation can also be adjusted. The second telescopic motor 30 drives the hinge seat 351 connected to its output end to move, and the hinge seat 351 drives the corresponding slider to move in the guide slide seat 35. The hinge seat 351 drives the tail end of the fourth auxiliary radiator 34 to move, and the head end of the fourth auxiliary radiator 34 also moves accordingly to drive the tail end of the third auxiliary radiator 33 Move, the head end of the third sub-radiator 33 also moves and drives another hinged seat 351 to move on the guide slide 35, and then the two ends of the second sub-radiator 32 and the tail end of the first sub-radiator 31 move, and the entire auxiliary heat dissipation area is adjusted. The inhaled cold air can fully contact the first sub-radiator 31, the second sub-radiator 32, the third sub-radiator 33 and the fourth sub-radiator 34 to complete the heat exchange, thereby improving the heat dissipation effect. Of course, the number of sub-radiators is not limited to four, and two, six, etc. can also be set.

[0045] It is worth noting that the present invention also provides a water tank and a spray assembly 4. The water tank is connected to the drainage pipe of the battery of the vehicle, and the spray assembly 4 is connected to the water tank through a water pump. The above is the prior art and will not be repeated here.

Claims

1. A heat dissipation device for a new energy vehicle, characterized in that: The invention comprises a vehicle chassis, an air guide mechanism (2) and an auxiliary heat dissipation mechanism (3), wherein an air passage (1) is provided inside the vehicle chassis, wherein the air passage (1) is distributed along the longitudinal direction of the vehicle, and the rear end of the air passage (1) passes through the vehicle chassis, and a lifting groove is provided on the bottom wall of the air passage (1), wherein the air guide mechanism (2) comprises an air guide frame (21) slidably matched with the lifting groove, a driving component (22) for driving the air guide frame (21) to rise and fall, an air suction component (23) for sucking cold air into the air passage (1), and an air inlet transmission component (24) for driving the air suction component (23) to work, wherein a horizontally arranged sealing plate (211) is provided inside the air guide frame (21), and the sealing plate (211) and the air guide frame (21) are connected to each other. An air inlet (212) is formed between the inner walls of the head end, an air inlet channel (213) communicating with the air inlet (212) is formed between the sealing plate (211) and the inner bottom wall of the air guide frame (21), the driving component (22) is arranged in the air passage (1), the driving component (22) is in transmission connection with the air guide frame (21), the air suction component (23) is arranged at the bottom of the air passage (1), the air inlet transmission component (24) is arranged on the air inlet channel (213) and the driving component (22), and the air inlet transmission component (24) is in transmission connection with the air suction component (23), the driving component (22) comprises a transverse plate (221), a first guide rod (222) and a first telescopic motor (223), the transverse plate (2 The wind guide frame (21) is provided with a guide seat (224), the transverse plate (221) is arranged in the wind passage (1), the first guide rod (222) is vertically arranged on one end of the top of the wind guide frame (21), and the first guide rod (222) is slidably arranged in the guide seat (224), the first telescopic motor (223) is vertically arranged on the top of the transverse plate (221), the output end of the first telescopic motor (223) is connected to the other end of the top of the wind guide frame (21), the air suction component (23) comprises at least two air suction components, the air suction components comprise a circular frame (231), a first rotating seat (232) and a first rotating shaft, and the outer wall of the first rotating seat (232) is provided with a plurality of connecting rods arranged at equal angles along its circumference. rod (234), a first mounting plate (235) is provided at the bottom of the first rotating shaft, a plurality of first blades (236) are mounted on the first mounting plate (235) and are arranged at equal angles along the circumference thereof, at least two through holes (11) are provided at the bottom of the air passage (1), the circular frame (231) is installed in the through holes (11), the connecting rod (234) is connected to the inner wall of the circular frame (231), the first rotating shaft is rotatably arranged on the first rotating seat (232), the air inlet transmission assembly (24) comprises a second rotating seat (241), a second rotating shaft (242), a third rotating seat (243) and a third rotating shaft (244), a second mounting plate (245) is provided at the tail end of the second rotating shaft (242),The second mounting plate (245) is provided with a plurality of second blades (246) arranged at equal angles along the circumference thereof; a rotating sleeve (2421) is rotatably provided on the second rotating shaft (242); a first bevel gear (247) is provided between the rotating sleeve (2421) and the second mounting plate (245); a position limiting rotating seat (2426) is provided on the rotating sleeve (2421); a position limiting rotating disc (2422) is provided in the position limiting rotating seat (2426); and the position limiting rotating disc (2422) ) is provided with a synchronous shaft (2423) coaxial with the third rotating shaft (244), the synchronous shaft (2423) is provided with a second bevel gear (2424), the top of the synchronous shaft (2423) is provided with a sliding rod (2425) integrally connected with the third rotating shaft (244) and having a polygonal cross section, the bottom of the third rotating shaft (244) is provided with a first groove wheel (2441), the third rotating shaft (244) and the first groove wheel (2441) are both provided with a sliding groove (2442) slidably matched with the sliding rod (2425), A second groove wheel (233) is provided on the top of the first rotating shaft, a rotating hole is provided on the sealing plate (211) for sliding and rotating with the synchronous shaft (2423), the second rotating seat (241) is arranged on the inner wall of the head end of the air guide frame (21), the head end of the second rotating shaft (242) is rotatably arranged on the second rotating seat (241), the third rotating seat (243) is invertedly arranged on the bottom of the horizontal plate (221), and the third rotating shaft (244) is rotatably arranged on the third rotating seat (244). 243), the first bevel tooth (247) and the second bevel tooth (2424) are meshed, the first groove wheel (2441) and all the second groove wheels (233) are connected by a transmission belt, the air guide mechanism (2) is arranged at the bottom of the air passage (1), the auxiliary heat dissipation mechanism (3) is arranged on the top wall of the air passage (1), and the auxiliary heat dissipation mechanism (3) is located directly above the air suction component (23), and the auxiliary heat dissipation mechanism (3) is connected in parallel to the circulating heat dissipation pipeline of the battery.

2. The heat dissipation device for new energy vehicles according to claim 1, characterized in that: The cross section of the air guide frame (21) is an isosceles trapezoid.

3. The heat dissipation device for new energy vehicles according to claim 2, characterized in that: A horizontally arranged hanging plate (214) is provided on the outer wall of the head end of the air guide frame (21), and at least two sealing plates (215) for sealing the through holes (11) and two second guide rods (216) are provided on the hanging plate (214), and two guide holes slidably matched with the second guide rods (216) are provided at the bottom of the air passage (1).

4. The heat dissipation device for new energy vehicles according to claim 3, characterized in that: The air guide frame (21), the suspension plate (214), the sealing plate (215) and the second guide rod (216) are all made of heat-conducting metal material.

5. The heat dissipation device for new energy vehicles according to claim 1, characterized in that: The auxiliary heat sink mechanism (3) comprises a first auxiliary heat sink (31), a second auxiliary heat sink (32), a third auxiliary heat sink (33), a fourth auxiliary heat sink (34), a guide slide seat (35) and a second telescopic motor (30); the first auxiliary heat sink (31), the second auxiliary heat sink (32), the third auxiliary heat sink (33) and the fourth auxiliary heat sink (34) are all rectangular bodies; the tail end of the first auxiliary heat sink (31) and both ends of the third auxiliary heat sink (33) are provided with a symmetrically arranged first connecting seat (36) and a fourth rotating seat (37); a sealing hole (361) is provided on the side wall of the first connecting seat (36); the head end of the fourth auxiliary heat sink (34) and both ends of the second auxiliary heat sink (32) are provided with a symmetrically arranged second connecting seat (38) and a connecting seat (39); the side wall of the second connecting seat (38) is provided with a sealing hole (361); ) a connecting pipe (381) rotatably matched with the connecting seat (39), a matching shaft for rotatably matching the connecting seat (39) is provided on the side wall of the connecting seat (39), a hinge joint (321) is provided at the tail end of the second auxiliary radiator (32) and the tail end of the fourth auxiliary radiator (34), two sliding blocks are slidably provided in the guide sliding seat (35), and a hinge seat (351) is provided on the sliding block, the head end of the first auxiliary radiator (31) is transversely hinged on the inner top wall of the air passage (1) through a hinge shaft, the liquid inlet pipe of the first auxiliary radiator (31) and the liquid outlet pipe of the fourth auxiliary radiator (34) are both connected to the circulating heat dissipation pipeline, the two hinge joints (321) are respectively hinged to the two hinge seats (351), the second telescopic motor (30) is horizontally arranged on the inner top wall of the air passage (1), and the output end of the second telescopic motor (30) is connected to one of the hinge seats (351).

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