New energy vehicle charging device

Abstract

The invention relates to the technical field of new energy vehicle charging, and discloses a new energy vehicle charging device which comprises a charging pile and further comprises a pressure relief mechanism, the pressure relief mechanism comprises a cooling liquid box and a heat conduction box which are fixedly installed in the charging pile, an annular heat conduction pipe is fixedly installed on the heat conduction box, and a rectangular box is fixedly installed in the charging pile. The circular heat dissipation pipe can effectively cool water vapor, the cooled water vapor part can be condensed into water, the water vapor and part of the cooled water vapor enter the rectangular box together to cool the cooling liquid, continuous rising of the temperature of the cooling liquid is slowed down, and the cooling effect of the cooling liquid is improved. And meanwhile, after part of water vapor is condensed, the volume of the water vapor can be reduced, the air pressure is reduced, the problem that the structure in the device is deformed is further prevented, and therefore normal use of the charging pile and normal charging of the electric vehicle are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle charging equipment technology, specifically to a new energy vehicle charging device. Background Technology

[0002] With the rapid development of the new energy vehicle industry, electric vehicles have become an important part of the modern transportation system. The widespread adoption of electric vehicles has placed higher demands on charging infrastructure, especially high-power DC charging piles, which are widely deployed in public charging stations, highway service areas, and commercial locations due to their ability to significantly shorten charging time. However, with the continuous increase in charging power (such as 120kW, 350kW, or even higher), charging piles generate a large amount of heat during operation, especially at their core component—the power module, where heat is highly concentrated. If heat dissipation is not timely and effective, the temperature of the power module will rise sharply, leading to accelerated component aging, decreased system efficiency, and even triggering overheat protection, thus interrupting the charging process.

[0003] For electric vehicle users, the continuity and stability of the charging process directly affect travel efficiency and experience. If a charging station experiences frequent shutdowns or power derating due to poor heat dissipation, it not only prolongs charging time but may also affect the charging strategy and lifespan of the power battery. Furthermore, traditional air-cooled or liquid-cooled cooling systems still suffer from insufficient heat dissipation capacity, rapid temperature rise of the cooling medium, and internal pressure imbalances under high load conditions. This is especially true in closed liquid-cooled systems, where the coolant easily vaporizes when heated, leading to increased system pressure. Without effective pressure regulation and heat dissipation mechanisms, this can easily cause deformation or even damage to the coolant tank, pipes, or heat-conducting structures, seriously threatening the operational safety and reliability of the charging station. Summary of the Invention

[0004] The purpose of this invention is to provide a charging device for new energy vehicles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A new energy vehicle charging device includes a charging pile, and also includes:

[0007] The pressure relief mechanism includes a coolant tank and a heat conduction box fixedly installed inside the charging pile. An annular heat conduction pipe is fixedly installed on the heat conduction box, and a rectangular box is fixedly installed inside the charging pile. The pressure relief mechanism is used to relieve the high pressure generated during the cooling process of the coolant.

[0008] The cleaning mechanism includes a reciprocating threaded rod rotatably installed inside the coolant tank, the top end of the reciprocating threaded rod extending outside the coolant tank, a fan fixedly installed inside the charging pile, the reciprocating threaded rod being connected through the fan, and several circular heat dissipation pipes being provided on the front of the charging pile. The cleaning mechanism is used to clean the dust on the circular heat dissipation pipes.

[0009] The adjustment mechanism includes an adjustment box fixedly installed inside the charging pile, an L-shaped connecting plate slidably installed inside the adjustment box, and a compression spring fixedly installed at the bottom of the L-shaped connecting plate. The adjustment mechanism is used to adjust the degree of heat dissipation.

[0010] Furthermore, the pressure relief mechanism also includes two connecting pipes fixedly installed on the back of the rectangular box, both of which are connected to the coolant tank. An annular box is fixedly installed on the top of the rectangular box, and the annular box is connected to the rectangular box. A filter plate is provided inside the rectangular box. A limit spring is fixedly installed on the top of the rectangular box. A circular limit plate is fixedly installed on the top of the limit spring. A rectangular plate is fixedly installed on the top of the circular limit plate. The top of the rectangular plate extends outside the annular box. The coolant tank is connected to the annular heat-conducting pipe.

[0011] Furthermore, an irregularly shaped hollow plate is fixedly installed on the outer wall of the annular box, the front of the irregularly shaped hollow plate extends to the outside of the charging pile, a condenser box is fixedly installed on the front of the charging pile, several circular heat dissipation pipes are fixedly installed between the irregularly shaped hollow plate and the condenser box, the condenser box is connected to the rectangular box, a gravity valve is installed inside the condenser box, a return pipe is fixedly installed at the bottom end of the annular heat conduction pipe, the return pipe is connected to the coolant tank, and a one-way valve is installed at the top of the return pipe.

[0012] Furthermore, the cleaning mechanism also includes a drive motor fixedly installed on the inner wall of the top of the charging pile. The output shaft of the drive motor is fixedly connected to a reciprocating threaded rod. A rectangular hollow box is threaded onto the reciprocating threaded rod, and the rectangular hollow box is slidably connected to the coolant tank.

[0013] Furthermore, two T-shaped hollow plates are slidably installed inside the rectangular hollow box. The top ends of the two T-shaped hollow plates extend slidably outside the rectangular hollow box. Reciprocating springs are fixedly installed on the top inner walls of the two T-shaped hollow plates, and the bottom ends of the two reciprocating springs are fixedly connected to the rectangular hollow box. Several water inlet holes are opened at the bottom of the rectangular hollow box, and strip-shaped ventilation grooves are opened on the two T-shaped hollow plates.

[0014] Furthermore, two L-shaped tubes are fixedly installed through the condenser box, and the ends of the two L-shaped tubes are connected to an annular heat-conducting tube. Two support frames are fixedly installed inside the two L-shaped tubes, and movable springs are fixedly installed at the top of the two support frames. Circular plates are fixedly installed at the top of the two movable springs.

[0015] Furthermore, a support rod is fixedly installed at the top of each of the two circular plates, and a cleaning frame is fixedly installed at the top of the two support rods. The cleaning frame slides through several circular heat dissipation pipes.

[0016] Furthermore, the adjustment mechanism also includes a hollow rectangular tube fixedly installed on the back of the L-shaped connecting plate, the top end of the hollow rectangular tube slidingly extending to the outside of the adjustment box, a chamfered tube fixedly installed on the top end of the fan, the hollow rectangular tube and the chamfered tube being adapted to each other, and the bottom end of the compression spring being fixedly connected to the adjustment box.

[0017] Furthermore, the charging pile has a trapezoidal air inlet cavity, and several inclined grooves are formed on the inner wall of the front of the trapezoidal air inlet cavity. A second water filter plate is fixedly installed in the trapezoidal air inlet cavity. An air box is fixedly installed in the charging pile. A rectangular push plate is slidably installed in the air box. Two air inlet slots are formed on the air box.

[0018] Furthermore, a tension spring is fixedly installed on the top of the rectangular push plate, and the top end of the tension spring is fixedly connected to the top inner wall of the air box. Two circular rods are fixedly installed on the bottom of the rectangular push plate, and the bottom ends of the two circular rods slide into the coolant tank. Two L-shaped air inlet pipes are fixedly installed on the top of the air box, and the two L-shaped air inlet pipes are connected to the trapezoidal air inlet cavity. Two connecting plates are fixedly installed on the rectangular plate, and strip sealing plates are fixedly installed at the ends of the two connecting plates.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, when the charging pile is running, it generates heat, activating the drive motor. The drive motor rotates the reciprocating threaded rod, which in turn causes the rectangular hollow box to move up and down. When the rectangular hollow box rises, it also causes the T-shaped hollow plate to rise. The rectangular hollow box and the T-shaped hollow plate push the coolant in the coolant tank upwards. The coolant in the coolant tank enters and flows into the annular heat pipe. The flow of coolant in the annular heat pipe accelerates the heat absorption and cooling of the power module in the heat-conducting box. As the temperature inside the heat-conducting box continues to rise, the coolant in the annular heat-conducting pipe also heats up rapidly, generating water vapor. The steam enters the rectangular box through the connecting pipe and then enters the annular box through the first water filter plate. Since the first water filter plate can effectively filter water and only allow steam to pass through, as more and more steam enters the annular box, the corresponding air pressure inside the annular box increases, pushing the circular limit plate upwards. At this time, the limit spring is stretched and deformed. When the circular limit plate... When the rising height exceeds the irregular hollow plate, the steam in the annular box will enter several circular heat dissipation pipes through the irregular hollow plate. Finally, the steam will enter the condensation box through the circular heat dissipation pipes and re-enter the coolant in the rectangular box through the gravity valve. During this process, as the steam passes through the circular heat dissipation pipes, the increased contact area between the pipes and the air allows the pipes to effectively cool the steam. Consequently, some of the cooled steam will condense into water, and this water, along with some of the cooled steam, will further cool the coolant as it enters the rectangular box. This slows down the further increase in coolant temperature, which could lead to increased air pressure and deformation of the coolant tank, rectangular box, and annular heat pipes. At the same time, the condensation of some steam reduces its volume and air pressure, further preventing structural deformation within the device. This ensures the normal operation of the charging pile and the normal charging of electric vehicles. The coolant produced after the steam condenses enters the rectangular box, ensuring its recycling.

[0021] 2. In this invention, when the circular limiting plate rises, it drives the rectangular plate to rise. The rectangular plate contacts and drives the L-shaped connecting plate to rise, which in turn drives the hollow rectangular tube to rise. The hollow rectangular tube enters the C-shaped tube. At this time, the bottom of the L-shaped connecting plate also leaves the ventilation opening connecting the trapezoidal air inlet cavity and the regulating box. At this time, the regulating box is connected to the outside. When the reciprocating threaded rod rotates, it drives the fan to run. The fan generates suction force and draws in the outside air through the inclined groove, trapezoidal air inlet cavity, filter plate two, hollow rectangular tube, and C-shaped tube, and blows it out from the bottom of the fan. As the air passes through filter plate two, the water in the air is filtered out by filter plate two, preventing water from entering the air. If a short circuit occurs when a component enters the charging pile, the corresponding rectangular plate will rise, causing the connecting plate to rise as well. The connecting plate will then cause the strip sealing plate to rise, opening the air outlet on the back of the charging pile. At this time, the air exhausted by the fan will be discharged from the air outlet on the back of the charging pile, thereby increasing the airflow velocity to enhance heat dissipation and cooling inside the charging pile. This structure can adjust the heat dissipation intensity according to the temperature changes inside the charging pile to ensure the normal operation of the charging pile. At the same time, when the temperature inside the charging pile is not high, the idling of the fan will move the airflow inside the charging pile, thereby evenly distributing the heat generated by the power module in the heat conduction box within the charging pile, preventing the power module from overheating.

[0022] 3. In this invention, when the T-shaped hollow plate rises, it contacts and drives the circular rod to rise. The circular rod drives the rectangular push plate to rise. As the rectangular push plate rises, the tension spring is compressed and deformed. After passing through the air inlet slot, the rectangular push plate pushes the air in the air box into the L-shaped air inlet pipe, and then discharges it from the L-shaped air inlet pipe into the trapezoidal air inlet cavity. The air passes through the second filter water plate and finally exits from the inclined groove, blowing away the dust left on the inclined groove during the fan's suction process, preventing dust accumulation and blockage. After the T-shaped hollow plate descends, it leaves the circular rod. At this time, the rectangular push plate will reset under the elastic force of the tension spring. When the T-shaped hollow plate rises again, the blowing action is repeated, achieving continuous blowing to improve the cleaning of dust on the inclined groove. During the fan's suction process, the air will quickly enter the charging pile from the inclined groove. At this time, the air velocity will increase when entering the inclined groove, and the rapid airflow will further improve the heat dissipation and condensation effect of the circular heat sink.

[0023] 4. In this invention, when the reciprocating threaded rod drives the rectangular hollow box to rise, the coolant in the annular heat pipe will return to the coolant tank. Correspondingly, the one-way valve prevents coolant backflow. When the rectangular hollow box descends, since the coolant below the box does not flow back, the water pressure generated by the descending box causes coolant to enter the box through the inlet. The continuous water pressure pushes the T-shaped hollow plate upwards. After the strip-shaped venting groove on the T-shaped hollow plate leaves the rectangular hollow box, the coolant below the box reaches the top of the box from the strip-shaped venting groove, preparing for the coolant to flow within the annular heat pipe. The rising of the rectangular hollow box pushes the coolant into… When the coolant flows into the annular heat pipe, the water pressure inside the annular heat pipe increases, and the coolant enters the L-shaped pipe from the annular heat pipe. The coolant pushes the circular plate upward through the support frame, causing the movable spring to stretch and deform. The circular plate drives the support rod upward, and the support rod drives the cleaning frame upward. When the rectangular hollow box descends, the water pressure inside the annular heat pipe decreases. At this time, under the elastic force of the movable spring, the circular plate descends, and the corresponding cleaning frame descends. As the coolant is continuously pushed to flow, the cleaning frame moves up and down and back and forth on several circular heat pipes, cleaning the dust remaining on the surface of the circular heat pipes, thereby preventing the circular heat pipes from having too much dust on them, which would affect the heat dissipation effect of the circular heat pipes in contact with the air. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a side cross-sectional view of the overall structure of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the internal structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 A magnified structural diagram of A in the middle;

[0028] Figure 5 For the present invention Figure 2 A magnified structural diagram of B in the diagram;

[0029] Figure 6 For the present invention Figure 3 A magnified structural diagram of C;

[0030] Figure 7 For the present invention Figure 2 A magnified structural diagram of D in the diagram;

[0031] Figure 8 This is a schematic diagram of the internal right-side cross-sectional structure of the present invention;

[0032] Figure 9For the present invention Figure 8 A magnified structural diagram of E in the middle;

[0033] Figure 10 This is a partial structural diagram of the adjustment mechanism in this invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Charging pile; 101. Coolant tank; 102. Heat transfer box; 103. Annular heat transfer pipe; 104. Rectangular box; 105. Connecting pipe; 106. Annular box; 1061. Limiting spring; 1062. Circular limiting plate; 1063. Rectangular plate; 107. Filter plate one; 108. Irregular hollow plate; 109. Condensation box; 110. Circular heat dissipation pipe; 111. Gravity valve; 112. Return pipe; 113. One-way valve; 2. Reciprocating threaded rod; 201. Fan; 202. Drive motor; 203. Rectangular hollow box; 204. T-shaped hollow plate; 2 05. Reciprocating spring; 206. Water inlet; 207. L-shaped tube; 208. Support frame; 209. Movable spring; 210. Circular plate; 211. Support rod; 212. Cleaning frame; 3. Adjustment box; 301. L-shaped connecting plate; 302. Compression spring; 303. Hollow rectangular tube; 304. C-shaped tube; 305. Trapezoidal air inlet cavity; 306. Water filter plate II; 307. Air box; 308. Rectangular push plate; 309. Tension spring; 310. Circular rod; 311. Air inlet groove; 312. L-shaped air inlet pipe; 313. Connecting plate; 314. Strip sealing plate. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 - Figure 10 As shown, the present invention is a charging device for new energy vehicles, including a charging pile 1, and further comprising:

[0038] The pressure relief mechanism includes a coolant tank 101 and a heat conduction box 102 fixedly installed inside the charging pile 1. An annular heat conduction pipe 103 is fixedly installed on the heat conduction box 102, and a rectangular box 104 is fixedly installed inside the charging pile 1. The pressure relief mechanism is used to relieve the high pressure generated during the cooling process of the coolant.

[0039] The cleaning mechanism includes a reciprocating threaded rod 2 rotatably installed inside the coolant tank 101, the top end of the reciprocating threaded rod 2 extending to the outside of the coolant tank 101, a fan 201 fixedly installed inside the charging pile 1, the reciprocating threaded rod 2 being connected through the fan 201, and several circular heat dissipation pipes 110 being provided on the front of the charging pile 1. The cleaning mechanism is used to clean the dust on the circular heat dissipation pipes 110.

[0040] The adjustment mechanism includes an adjustment box 3 fixedly installed inside the charging pile 1. An L-shaped connecting plate 301 is slidably installed inside the adjustment box 3. A compression spring 302 is fixedly installed at the bottom of the L-shaped connecting plate 301. The adjustment mechanism is used to adjust the degree of heat dissipation.

[0041] like Figure 4 As shown, the pressure relief mechanism also includes two connecting pipes 105 fixedly installed on the back of the rectangular box 104. Both connecting pipes 105 are connected to the coolant tank 101. An annular box 106 is fixedly installed on the top of the rectangular box 104. The annular box 106 is connected to the rectangular box 104. A water filter plate 107 is provided inside the rectangular box 104. A limit spring 1061 is fixedly installed on the top of the rectangular box 104. A circular limit plate 1062 is fixedly installed on the top of the limit spring 1061. A rectangular plate 1063 is fixedly installed on the top of the circular limit plate 1062. The top of the rectangular plate 1063 extends to the outside of the annular box 106. The coolant tank 101 is connected to the annular heat pipe 103.

[0042] Steam enters the rectangular box 104 through the connecting pipe 105, and then enters the annular box 106 through the water filter plate 107. Since the water filter plate 107 can effectively filter water and only allow steam to pass through, as more and more steam enters the annular box 106, the corresponding air pressure in the annular box 106 will increase, and push the circular limit plate 1062 to rise.

[0043] like Figure 1 and Figure 2 As shown, an irregularly shaped hollow plate 108 is fixedly installed on the outer wall of the annular box 106. The front of the irregularly shaped hollow plate 108 extends to the outside of the charging pile 1. A condenser box 109 is fixedly installed on the front of the charging pile 1. Several circular heat dissipation pipes 110 are fixedly installed between the irregularly shaped hollow plate 108 and the condenser box 109. The condenser box 109 is connected to the rectangular box 104. A gravity valve 111 is installed inside the condenser box 109. A return pipe 112 is fixedly installed at the bottom of the annular heat conduction pipe 103. The return pipe 112 is connected to the coolant tank 101. A one-way valve 113 is installed at the top of the return pipe 112.

[0044] When the circular limiting plate 1062 rises higher than the irregular hollow plate 108, the steam in the annular box 106 will enter several circular heat dissipation pipes 110 from the irregular hollow plate 108. Finally, the steam will enter the condensation box 109 from the circular heat dissipation pipes 110 and re-enter the coolant in the rectangular box 104 from the gravity valve 111. During this process, when the steam passes through the circular heat dissipation pipes 110, the contact area between the several circular heat dissipation pipes 110 and the air is increased, so the circular heat dissipation pipes 110 can effectively cool the water vapor.

[0045] like Figure 6 and Figure 7 As shown, the cleaning mechanism also includes a drive motor 202 fixedly installed on the inner wall of the top of the charging pile 1. The output shaft of the drive motor 202 is fixedly connected to the reciprocating threaded rod 2. A rectangular hollow box 203 is threaded on the reciprocating threaded rod 2. The rectangular hollow box 203 is slidably connected to the coolant tank 101.

[0046] When the charging pile is running, it generates heat, which starts the drive motor 202. The drive motor 202 drives the reciprocating threaded rod 2 to rotate, and the reciprocating threaded rod 2 drives the rectangular hollow box 203 to move up and down reciprocatingly.

[0047] like Figure 6 and Figure 9 As shown, two T-shaped hollow plates 204 are slidably installed inside the rectangular hollow box 203. The top ends of the two T-shaped hollow plates 204 extend slidably outside the rectangular hollow box 203. Reciprocating springs 205 are fixedly installed on the inner top walls of the two T-shaped hollow plates 204 respectively. The bottom ends of the two reciprocating springs 205 are fixedly connected to the rectangular hollow box 203. Several water inlet holes 206 are opened at the bottom of the rectangular hollow box 203. Strip-shaped ventilation grooves are opened on the two T-shaped hollow plates 204 respectively.

[0048] The continuous action of water pressure will push the T-shaped hollow plate 204 upward. After the strip ventilation groove on the T-shaped hollow plate 204 leaves the rectangular hollow box 203, the coolant below the rectangular hollow box 203 will reach the top of the rectangular hollow box 203 from the strip cooling groove, preparing to push the coolant to flow in the annular heat pipe 103. When the rectangular hollow box 203 rises and pushes the coolant into the annular heat pipe 103, the water pressure in the annular heat pipe 103 will increase.

[0049] like Figure 5 As shown, two L-shaped tubes 207 are fixedly installed through the condenser box 109. The ends of the two L-shaped tubes 207 are connected to the annular heat-conducting tube 103. Two support frames 208 are fixedly installed inside the two L-shaped tubes 207. Movable springs 209 are fixedly installed at the top of the two support frames 208. Circular plates 210 are fixedly installed at the top of the two movable springs 209.

[0050] Coolant enters L-shaped tube 207 from annular heat pipe 103. Coolant pushes circular plate 210 up through support frame 208. Movable spring 209 is stretched and deformed. Circular plate 210 drives support rod 211 up.

[0051] like Figure 5 As shown, support rods 211 are fixedly installed on the top of the two circular plates 210 respectively, and cleaning racks 212 are fixedly installed on the top of the two support rods 211. The cleaning racks 212 slide through several circular heat dissipation pipes 110.

[0052] When the support rod 211 raises the cleaning rack 212, and the rectangular hollow box 203 descends, the water pressure in the annular heat pipe 103 will decrease. At this time, under the elastic force of the movable spring 209, the circular plate 210 will descend, and the corresponding cleaning rack 212 will descend. As the coolant is continuously pushed to flow, the cleaning rack 212 will move up and down and back and forth on several circular heat pipes 110, and clean the dust remaining on the surface of the circular heat pipes 110, thereby avoiding the problem of too much dust on the circular heat pipes 110 affecting the heat dissipation effect of the circular heat pipes 110 in contact with the air.

[0053] like Figure 7 As shown, the adjustment mechanism also includes a hollow rectangular tube 303 fixedly installed on the back of the L-shaped connecting plate 301. The top end of the hollow rectangular tube 303 slides out of the adjustment box 3. A chamfered tube 304 is fixedly installed on the top end of the fan 201. The hollow rectangular tube 303 and the chamfered tube 304 are adapted to each other. The bottom end of the compression spring 302 is fixedly connected to the adjustment box 3.

[0054] When the circular limiting plate 1062 rises, it will drive the rectangular plate 1063 to rise. The rectangular plate 1063 will contact and drive the L-shaped connecting plate 301 to rise. The L-shaped connecting plate 301 will drive the hollow rectangular tube 303 to rise. The hollow rectangular tube 303 will enter the U-shaped tube 304.

[0055] like Figure 7 and Figure 9 As shown, a trapezoidal air inlet cavity 305 is provided inside the charging pile 1. Several inclined grooves are provided on the inner wall of the front side of the trapezoidal air inlet cavity 305. A water filter plate 306 is fixedly installed inside the trapezoidal air inlet cavity 305. An air box 307 is fixedly installed inside the charging pile 1. A rectangular push plate 308 is slidably installed inside the air box 307. Two air inlet slots 311 are provided on the air box 307.

[0056] When the T-shaped hollow plate 204 rises, it will contact and drive the circular rod 310 to rise. The circular rod 310 will drive the rectangular push plate 308 to rise. When the rectangular push plate 308 rises, the tension spring 309 will be compressed and deformed. After passing through the air inlet slot 311, the rectangular push plate 308 will push the air in the air box 307 into the L-shaped air inlet pipe 312.

[0057] like Figure 4 , Figure 8 , Figure 9 and Figure 10 As shown, a tension spring 309 is fixedly installed on the top of the rectangular push plate 308. The top end of the tension spring 309 is fixedly connected to the top inner wall of the air box 307. Two circular rods 310 are fixedly installed on the bottom of the rectangular push plate 308. The bottom ends of the two circular rods 310 slide into the coolant tank 101. Two L-shaped air inlet pipes 312 are fixedly installed on the top of the air box 307. Both L-shaped air inlet pipes 312 are connected to the trapezoidal air inlet cavity 305. Two connecting plates 313 are fixedly installed on the rectangular plate 1063. Strip sealing plates 314 are fixedly installed at the ends of the two connecting plates 313.

[0058] When the corresponding rectangular plate 1063 rises, it will drive the connecting plate 313 to rise, and the connecting plate 313 will drive the strip sealing plate 314 to rise, opening the air outlet on the back of the charging pile 1. At this time, the air discharged by the fan 201 will be discharged from the air outlet on the back of the charging pile 1, thereby increasing the air flow rate to enhance the heat dissipation and cooling inside the charging pile 1.

[0059] Working principle: When the charging pile is running, it generates heat, activating the drive motor 202. The drive motor 202 drives the reciprocating threaded rod 2 to rotate, which in turn drives the rectangular hollow box 203 to move up and down. When the rectangular hollow box 203 rises, it also drives the T-shaped hollow plate 204 to rise together. The rectangular hollow box 203 and the T-shaped hollow plate 204 push the coolant in the coolant tank 101 upwards. The coolant in the coolant tank 101 enters and flows into the annular heat pipe 103. The flow of coolant in the annular heat pipe 103... The motion accelerates the heat absorption and cooling of the power module inside the heat transfer box 102. As the temperature inside the heat transfer box 102 continues to rise, the coolant in the annular heat pipe 103 also heats up rapidly, generating water vapor. The vapor enters the rectangular box 104 through the connecting pipe 105, and then passes through the water filter plate 107 into the annular box 106. Since the water filter plate 107 effectively filters water and only allows steam to pass through, as more and more steam enters the annular box 106, the corresponding air pressure inside the annular box 106 will increase. The circular limiting plate 1062 is pushed upward, at which point the limiting spring 1061 undergoes tensile deformation. When the circular limiting plate 1062 rises higher than the irregular hollow plate 108, the steam in the annular box 106 will enter several circular heat dissipation pipes 110 from the irregular hollow plate 108. Finally, the steam will enter the condensation box 109 from the circular heat dissipation pipes 110 and re-enter the coolant in the rectangular box 104 through the gravity valve 111. During this process, when the steam passes through the circular heat dissipation pipes 110, the increased pressure between the several circular heat dissipation pipes 110 and the hollow plate 106 causes the steam to rise. The circular heat dissipation pipe 110 effectively cools water vapor due to the large contact area between the air and the water. Consequently, some of the cooled steam will condense into water, and some of the cooled steam will cool the coolant when it enters the rectangular box 104, thus reducing the risk of the coolant temperature continuing to rise and causing the air pressure to rise, which could deform the coolant tank 101, the rectangular box 104, and the annular heat conduction pipe 103. This ensures the normal use of the charging pile 1 and the normal charging of the electric vehicle. At the same time, when some of the steam condenses, it will reduce the volume of the steam and reduce the air pressure.

[0060] When the circular limit plate 1062 rises, it will drive the rectangular plate 1063 to rise. The rectangular plate 1063 will contact and drive the L-shaped connecting plate 301 to rise. The L-shaped connecting plate 301 will drive the hollow rectangular tube 303 to rise. The hollow rectangular tube 303 will enter the C-shaped tube 304. At this time, the bottom of the L-shaped connecting plate 301 will also leave the ventilation port that connects the trapezoidal air inlet cavity 305 and the regulating box 3. At this time, the regulating box 3 is connected to the outside. When the reciprocating threaded rod 2 rotates, it will drive the fan 201 to run. The fan 201 will generate suction force, and the air will be drawn through the inclined groove and trapezoidal... The air inlet 305, the second water filter plate 306, the hollow rectangular tube 303 and the U-shaped tube 304 draw in the outside air and blow it out from the bottom of the fan 201. When the air passes through the second water filter plate 306, the water filter plate 306 will filter out the moisture in the air, preventing moisture from entering the charging pile 1 and causing a short circuit. When the rectangular plate 1063 rises, it will drive the connecting plate 313 to rise. The connecting plate 313 will drive the strip sealing plate 314 to rise, opening the air outlet on the back of the charging pile 1. At this time, the air discharged by the fan 201 will be discharged from the air outlet on the back of the charging pile 1.

[0061] When the T-shaped hollow plate 204 rises, it will contact and drive the circular rod 310 to rise. The circular rod 310 will drive the rectangular push plate 308 to rise. When the rectangular push plate 308 rises, the tension spring 309 will be compressed and deformed. After passing through the air inlet slot 311, the rectangular push plate 308 will push the air in the air box 307 into the L-shaped air inlet pipe 312, and then discharge it from the L-shaped air inlet pipe 312 into the trapezoidal air inlet cavity 305. The air will pass through the water filter plate 306 and finally be discharged from the inclined slot, blowing away the dust left on the inclined slot during the suction process of the fan 201. After the T-shaped hollow plate 204 descends, it will leave the circular rod 310. At this time, the rectangular push plate 308 will be reset under the elastic force of the tension spring 309. When the T-shaped hollow plate 204 rises again, the blowing action will be repeated. During the suction process of the fan 201, the air will quickly enter the charging pile 1 from the inclined slot.

[0062] When the reciprocating threaded rod 2 drives the rectangular hollow box 203 to rise, the coolant in the annular heat pipe 103 will return to the coolant tank 101. Correspondingly, the one-way valve 113 prevents coolant backflow. When the rectangular hollow box 203 descends, since the coolant below the rectangular hollow box 203 will not backflow, the water pressure generated by the descent of the rectangular hollow box 203 will cause coolant to enter the rectangular hollow box 203 through the inlet hole 206. The continuous action of the water pressure will push the T-shaped hollow plate 204 to rise. After the strip-shaped venting groove on the T-shaped hollow plate 204 leaves the rectangular hollow box 203, the coolant below the rectangular hollow box 203 reaches the top of the rectangular hollow box 203 from the strip-shaped venting groove, preparing to push the coolant to flow in the annular heat pipe 103. When the coolant flows into the annular heat pipe 103, the water pressure inside the annular heat pipe 103 increases, and the coolant flows from the annular heat pipe 103 into the L-shaped pipe 207. The coolant pushes the circular plate 210 upward through the support frame 208, and the movable spring 209 is stretched and deformed. The circular plate 210 drives the support rod 211 upward, and the support rod 211 drives the cleaning frame 212 upward. When the rectangular hollow box 203 descends, the water pressure inside the annular heat pipe 103 decreases. At this time, under the elastic force of the movable spring 209, the circular plate 210 descends, and the corresponding cleaning frame 212 descends. As the coolant flows continuously, the cleaning frame 212 moves up and down and back and forth on several circular heat pipes 110, cleaning the dust remaining on the surface of the circular heat pipes 110.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A charging device for new energy vehicles, comprising a charging pile (1), characterized in that, Also includes: The pressure relief mechanism includes a coolant tank (101) and a heat conduction box (102) fixedly installed in the charging pile (1). An annular heat conduction pipe (103) is fixedly installed on the heat conduction box (102). A rectangular box (104) is fixedly installed in the charging pile (1). The pressure relief mechanism is used to relieve the high pressure generated during the cooling process of the coolant. The cleaning mechanism includes a reciprocating threaded rod (2) rotatably installed in the coolant tank (101), the top end of the reciprocating threaded rod (2) extending to the outside of the coolant tank (101), a fan (201) fixedly installed inside the charging pile (1), the reciprocating threaded rod (2) being connected to the fan (201) through, and a plurality of circular heat dissipation pipes (110) being provided on the front side of the charging pile (1). The cleaning mechanism is used to clean the dust on the circular heat dissipation pipes (110). The adjustment mechanism includes an adjustment box (3) fixedly installed in the charging pile (1), an L-shaped connecting plate (301) is slidably installed in the adjustment box (3), and a compression spring (302) is fixedly installed at the bottom of the L-shaped connecting plate (301). The adjustment mechanism is used to adjust the heat dissipation level.

2. The new energy vehicle charging device according to claim 1, characterized in that: The pressure relief mechanism also includes two connecting pipes (105) fixedly installed on the back of the rectangular box (104). Both connecting pipes (105) are connected to the coolant tank (101). An annular box (106) is fixedly installed on the top of the rectangular box (104). The annular box (106) is connected to the rectangular box (104). A water filter plate (107) is provided inside the rectangular box (104). A limiting spring (1061) is fixedly installed on the top of the rectangular box (104). A circular limiting plate (1062) is fixedly installed on the top of the limiting spring (1061). A rectangular plate (1063) is fixedly installed on the top of the circular limiting plate (1062). The top of the rectangular plate (1063) extends to the outside of the annular box (106). The coolant tank (101) is connected to the annular heat pipe (103).

3. A new energy vehicle charging device according to claim 2, characterized in that: A shaped hollow plate (108) is fixedly installed on the outer wall of the annular box (106). The front of the shaped hollow plate (108) extends to the outside of the charging pile (1). A condenser box (109) is fixedly installed on the front of the charging pile (1). Several circular heat dissipation pipes (110) are fixedly installed between the shaped hollow plate (108) and the condenser box (109). The condenser box (109) is connected to the rectangular box (104). A gravity valve (111) is provided inside the condenser box (109). A return pipe (112) is fixedly installed at the bottom of the annular heat conduction pipe (103). The return pipe (112) is connected to the coolant tank (101). A one-way valve (113) is provided at the top of the return pipe (112).

4. A new energy vehicle charging device according to claim 1, characterized in that: The cleaning mechanism also includes a drive motor (202) fixedly installed on the inner wall of the top of the charging pile (1). The output shaft of the drive motor (202) is fixedly connected to the reciprocating threaded rod (2). A rectangular hollow box (203) is threaded on the reciprocating threaded rod (2). The rectangular hollow box (203) is slidably connected to the coolant tank (101).

5. A new energy vehicle charging device according to claim 4, characterized in that: Two T-shaped hollow plates (204) are slidably installed inside the rectangular hollow box (203). The top ends of the two T-shaped hollow plates (204) extend out of the rectangular hollow box (203). Reciprocating springs (205) are fixedly installed on the inner top walls of the two T-shaped hollow plates (204). The bottom ends of the two reciprocating springs (205) are fixedly connected to the rectangular hollow box (203). Several water inlet holes (206) are opened at the bottom of the rectangular hollow box (203). Strip-shaped ventilation grooves are opened on the two T-shaped hollow plates (204).

6. A new energy vehicle charging device according to claim 3, characterized in that: Two L-shaped tubes (207) are fixedly installed through the condenser (109). The ends of the two L-shaped tubes (207) are connected to the annular heat-conducting tube (103). Two support frames (208) are fixedly installed inside the two L-shaped tubes (207). Movable springs (209) are fixedly installed at the top of the two support frames (208). Circular plates (210) are fixedly installed at the top of the two movable springs (209).

7. A new energy vehicle charging device according to claim 6, characterized in that: The top ends of the two circular plates (210) are respectively fixedly installed with support rods (211), and the top ends of the two support rods (211) are fixedly installed with cleaning racks (212). The cleaning racks (212) slide through several circular heat dissipation pipes (110).

8. A new energy vehicle charging device according to claim 1, characterized in that: The adjustment mechanism also includes a hollow rectangular tube (303) fixedly installed on the back of the L-shaped connecting plate (301). The top end of the hollow rectangular tube (303) slides out of the adjustment box (3). A U-shaped tube (304) is fixedly installed on the top end of the fan (201). The hollow rectangular tube (303) and the U-shaped tube (304) are adapted to each other. The bottom end of the compression spring (302) is fixedly connected to the adjustment box (3).

9. A new energy vehicle charging device according to claim 8, characterized in that: The charging pile (1) has a trapezoidal air inlet cavity (305) inside. Several inclined grooves are provided on the inner wall of the front of the trapezoidal air inlet cavity (305). A water filter plate (306) is fixedly installed inside the trapezoidal air inlet cavity (305). An air box (307) is fixedly installed inside the charging pile (1). A rectangular push plate (308) is slidably installed inside the air box (307). Two air inlet slots (311) are provided on the air box (307).

10. A new energy vehicle charging device according to claim 9, characterized in that: A tension spring (309) is fixedly installed on the top of the rectangular push plate (308). The top end of the tension spring (309) is fixedly connected to the top inner wall of the air box (307). Two circular rods (310) are fixedly installed on the bottom of the rectangular push plate (308). The bottom ends of the two circular rods (310) slide into the coolant tank (101). Two L-shaped air inlet pipes (312) are fixedly installed on the top of the air box (307). Both L-shaped air inlet pipes (312) are connected to the trapezoidal air inlet cavity (305). Two connecting plates (313) are fixedly installed on the rectangular plate (1063). A strip sealing plate (314) is fixedly installed at the end of the two connecting plates (313).

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