Intelligent charging pile with active heat dissipation

Abstract

This invention relates to the field of charging pile technology and discloses an intelligent charging pile with active heat dissipation, including a charging pile body and an active heat dissipation unit. The charging pile body includes a charging pile shell, and a sealing door is hinged to one side of the charging pile shell to seal the inside of the charging pile shell. This invention uses a compression spring to elastically connect multiple heat dissipation fins and allow the heat dissipation fins to slide along the outer surface of the heat-conducting copper pipe. At the same time, a liquid flow channel is opened inside the heat dissipation fins and connected to a liquid tank through a corrugated pipe. With the help of a temperature sensing matrix, the temperature of each area is monitored in real time. When a local high temperature is detected, the control system controls the rotary drive motor to drive the cleaning column to rotate synchronously, causing the airfoil head to deflect and squeeze the heat dissipation fins, overcoming the spring preload, increasing the local spacing, reducing the flow resistance in the area, and guiding the airflow. This achieves adaptive flow field reconstruction based on temperature feedback, effectively solving the problem of uneven heating and cooling and improving heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, and in particular to an intelligent charging pile with active heat dissipation. Background Technology

[0002] With the popularization of new energy vehicles, charging piles, as the core infrastructure for electric vehicle energy replenishment, are receiving increasing attention for their operational stability and safety. During long-term, high-power charging, the internal circuit modules of charging piles generate a large amount of heat. If heat dissipation is not timely or sufficient, it will cause the temperature of electronic components to rise, affecting charging efficiency, accelerating component aging, and even causing safety accidents.

[0003] Currently, the heat dissipation methods of existing charging piles are mainly divided into two categories: air cooling and liquid cooling. Air cooling uses a fan to drive airflow across the surface of the heating element, carrying the heat to the external environment. It has a simple structure and low cost, but its heat dissipation efficiency is limited by the ambient temperature and airflow organization, making it difficult to meet the heat dissipation requirements under high power density conditions. Liquid cooling uses coolant to circulate in the flow channel, transferring heat from the heating element to an external heat exchanger for release. It has the advantage of high heat dissipation efficiency, but its system is complex, costly, and there is a risk of coolant leakage.

[0004] Chinese patent CN121697488A discloses a heat dissipation structure for a charging pile, belonging to the field of charging pile technology. This heat dissipation structure mainly includes a heat dissipation panel, ducts, and an air outlet. The ducts are arranged in pairs and symmetrically at the upper and lower ends of the air outlet. An elastic valve is provided inside the air outlet cavity. One end of the valve is fixed to the outer surface of the heat dissipation panel, dividing its inner cavity into two independent upper and lower cavities. The valve can expand under pressure and elastically return to its original position. The ducts connect the upper and lower cavities to the interior of the heat dissipation panel. The inner wall of the panel has two separate air supply systems, including a branch shroud, a main shroud, and an air inlet shroud, equipped with alternately operating exhaust fans. During operation, the two rows of fans work alternately, driving hot air through each shroud into the cavities on both sides of the valve. Due to the alternating expansion and contraction of the valve under pressure, the volume of the air outlet is dynamically adjusted.

[0005] However, in existing active cooling solutions for charging piles, air cooling and liquid cooling are simply superimposed, with heat dissipation fins arranged at fixed intervals. This makes it impossible to dynamically adjust the airflow distribution according to the heat load distribution, resulting in insufficient heat dissipation in local high-temperature areas and uneven heating and cooling. At the same time, liquid cooling pipes are mostly laid on the surface of the fins. When the fin spacing changes due to thermal expansion and contraction or adjustment, the pipes are easily stretched or squeezed, posing a risk of weld cracking and coolant leakage. In addition, dust, catkins and other impurities in outdoor operating environments easily accumulate on the surface of the fins to form a heat insulation layer, significantly reducing heat dissipation efficiency. Existing cleaning mechanisms are mostly independently set up, with complex structures and large space occupation. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent charging station with active heat dissipation to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an active heat dissipation smart charging pile, comprising a charging pile body and an active heat dissipation unit, wherein the charging pile body includes a charging pile shell, and a sealing door is hinged to one side of the charging pile shell, the sealing door being used to seal the inside of the charging pile shell, and circuit structure A and circuit structure B are fixedly installed inside the charging pile shell, wherein circuit structure A and circuit structure B cooperate with each other to achieve external discharge; The active heat dissipation unit includes a hybrid heat dissipation chamber. One side of the hybrid heat dissipation chamber is connected to the back surface of the charging pile housing. The hybrid heat dissipation chamber is equipped with a heat-conducting plate. One side of the heat-conducting plate is tightly attached to the back of the charging pile housing. The heat-conducting plate can conduct heat from inside the charging pile housing into the heat-conducting plate. The heat-conducting plate is equipped with a heat-conducting copper pipe. The heat-conducting copper pipe extends outward from the inside of the heat-conducting plate to one side of the heat-conducting plate. Multiple heat dissipation fins are movably arranged on the outside of the heat-conducting copper pipe.

[0008] Preferably, the top of the hybrid heat dissipation chamber is provided with an air-cooled filter chamber, and the bottom of the inner wall of the hybrid heat dissipation chamber is provided with an air outlet filter hole. The surface of the air-cooled filter chamber is provided with an air inlet filter hole. A cooling fan B is provided on the side of the air-cooled filter chamber near the air inlet filter hole. The number of cooling fans B is at least two, and the two cooling fans B are horizontally symmetrically arranged inside the air-cooled filter chamber. The interior of the air-cooled filter chamber is interconnected with the interior of the hybrid heat dissipation chamber.

[0009] Preferably, the heat-conducting plate conducts heat from inside the charging pile housing to the interior of the heat-conducting copper pipe. After receiving heat, the heat-conducting copper pipe transfers the heat to the surface of multiple heat dissipation fins through heat transfer. The multiple heat dissipation fins can receive heat from the heat-conducting copper pipe and discharge it into the interior of the mixed heat dissipation chamber.

[0010] Preferably, when the two cooling fans B are in operation, they can draw external airflow into the air-cooled filter chamber and deliver it towards the interior of the mixed heat dissipation chamber. After the gas is blown into the interior of the mixed heat dissipation chamber, the airflow will gradually flow between multiple heat dissipation fins and discharge the heat on the surface of the heat dissipation fins to the outside through the air outlet filter at the bottom of the mixed heat dissipation chamber.

[0011] Preferably, an electromagnetic slide rail is provided on one side of the inner wall of the hybrid heat dissipation chamber, and an electromagnetic slider is provided on the outer surface of the electromagnetic slide rail. The electromagnetic slider can move linearly along the surface of the electromagnetic slide rail. A cleaning comb is movably provided on the surface of the electromagnetic slider through a connecting plate. A micro motor is provided between the cleaning comb and the electromagnetic slider. The output end of the micro motor is fixedly connected to one side of the cleaning comb, and the micro motor can control the cleaning comb to rotate along its axis.

[0012] Preferably, the cleaning comb is located at the bottom of multiple heat dissipation fins, and the side of the cleaning comb facing the multiple heat dissipation fins is provided with multiple cleaning columns, and each cleaning column is located in the area between two adjacent heat dissipation fins. The outer side of the cleaning column is provided with an wing-shaped head, and the outer surface of the wing-shaped head is provided with a cleaning brush. The number of electromagnetic slide rails, electromagnetic sliders and cleaning combs is at least two, and the two electromagnetic slide rails, electromagnetic sliders and cleaning combs are symmetrically arranged on the left and right sides of the inner wall of the hybrid heat dissipation chamber.

[0013] Preferably, the plurality of heat dissipation fins are linearly and equidistantly distributed along the axial direction of the heat-conducting copper pipe on its outer surface. Positioning plates are respectively provided on the left and right sides of the outer side of the heat-conducting copper pipe near the plurality of heat dissipation fins, and the interior of the two positioning plates is fixedly connected to the outer surface of the heat-conducting copper pipe. The two positioning plates can limit the position of the plurality of heat dissipation fins. Compression springs are provided between the plurality of heat dissipation fins, and the plurality of heat dissipation fins can slide along the outer surface of the heat-conducting copper pipe in the area between the two positioning plates.

[0014] Preferably, each of the heat dissipation fins has a liquid flow channel on its surface, the liquid flow channel is located inside the heat dissipation fin, the inlet pipe and outlet pipe of the liquid flow channel are respectively connected to a corrugated pipe A and a corrugated pipe B, the ends of the corrugated pipe A and the corrugated pipe B away from the heat dissipation fin are connected to a liquid tank, and a miniature water pump is provided on the side of the liquid tank near the corrugated pipe A.

[0015] Preferably, the charging pile housing has an air inlet and an air outlet on the left and right sides of the inner wall, respectively, and a cooling fan A is provided on the side of the charging pile housing near the air inlet. The number of cooling fans A is at least two, and the two cooling fans A are arranged longitudinally on the side of the charging pile housing near the air inlet.

[0016] Preferably, the bottom of the charging pile housing is provided with a support rod, the support rod is perpendicular to the bottom of the charging pile housing, and the end of the support rod away from the charging pile housing is provided with a mounting base. The charging pile housing can be fixed in position by the cooperation of the support rod and the mounting base. A charging interface is provided on one side of the inner wall of the charging pile housing.

[0017] The technical effects and advantages of this invention are as follows: 1. This invention uses a compression spring to elastically connect multiple heat dissipation fins and allow them to slide along the outer surface of a heat-conducting copper pipe. Simultaneously, liquid flow channels are created inside the heat dissipation fins and connected to a liquid tank via a corrugated pipe. A temperature sensing matrix monitors the temperature of each area in real time. When a localized high temperature is detected, the control system controls a rotary drive motor to synchronously rotate a cleaning column, causing the airfoil head to deflect and compress the heat dissipation fins. This overcomes the spring preload, increases the local spacing, reduces flow resistance in that area, and guides airflow, achieving adaptive flow field reconstruction based on temperature feedback. This effectively solves the problem of uneven heating and cooling and improves heat dissipation efficiency.

[0018] 2. This invention utilizes two symmetrically arranged cleaning combs, each with multiple cleaning columns. The outer side of each cleaning column has an wing-shaped head with cleaning brushes. These, along with an electromagnetic rail and slider, achieve reciprocating motion, allowing the cleaning brushes to simultaneously remove dust from the fin surface during temperature control, thus achieving functional reuse. Simultaneously, a micro-motor controls the overall rotation of the cleaning combs, enabling the two combs to deflect towards each other to form a V-shaped structure for enhanced macroscopic airflow, or to deflect in the same direction for unilateral airflow. Furthermore, all cleaning columns can be rotated to a horizontal position, allowing the wing-shaped heads to overlap and form a thermal bridge network. This provides passive temperature equalization and power reduction protection under extreme fault conditions, significantly improving the charging pile's heat dissipation reliability, self-cleaning ability, and ability to cope with extreme conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front view of the overall structure of the present invention; Figure 3 This is a side view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the cooling fan A and related structures of the present invention; Figure 5 This is a schematic diagram of the hybrid heat dissipation chamber and related structures of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the heat-conducting plate and the heat-conducting copper pipe of the present invention; Figure 7 This is a schematic diagram of the cleaning comb and the rotary drive motor in their installation state according to the present invention; Figure 8 This is a schematic diagram of the micro motor and related structures of the present invention; Figure 9 This is a schematic diagram of the assembly state of the cleaning column and airfoil head of the present invention; Figure 10 This is a schematic diagram of the liquid tank and related structures of the present invention; Figure 11 This is a schematic diagram of the cleaning column and airfoil head of the present invention in a V-shaped state. Figure 12This is a schematic diagram of the cleaning column and airfoil head in the thermal bridge network structure of the present invention.

[0020] In the diagram: 1. Charging pile body; 101. Charging pile shell; 102. Sealed door; 103. Support rod; 104. Mounting base; 105. Charging interface; 106. Circuit structure A; 107. Circuit structure B; 108. Air outlet; 109. Cooling fan A; 2. Active cooling unit; 201. Hybrid cooling chamber; 202. Air-cooled filter chamber; 203. Air inlet filter; 204. Heat-conducting plate; 205. Heat-conducting copper pipe; 206. Heat dissipation fins; 207. Air outlet filter; 208. Electromagnetic slide rail; 209. Electromagnetic slider; 210. Cleaning comb; 211. Cleaning column; 212. Rotary drive motor; 213. Cooling fan B; 214. Bellows A; 215. Liquid tank; 216. Micro motor; 217. Airfoil head; 218. Bellows B; 219. Liquid flow channel. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] This invention provides, for example Figures 1 to 12 The present invention relates to an active heat dissipation smart charging pile, comprising a charging pile body 1 and an active heat dissipation unit 2. The active heat dissipation unit 2 is located inside the charging pile body 1 and is used to dissipate heat from the inside of the charging pile body 1.

[0023] The charging pile body 1 includes a charging pile shell 101. A sealing door 102 is hinged to one side of the charging pile shell 101. The sealing door 102 is used to seal the inside of the charging pile shell 101. Circuit structure A106 and circuit structure B107 are fixedly installed inside the charging pile shell 101. Circuit structure A106 and circuit structure B107 cooperate with each other to achieve external discharge.

[0024] The charging pile housing 101 has air inlets and outlets 108 on the left and right sides of its inner wall, respectively. A cooling fan A109 is provided on the side of the charging pile housing 101 near the air inlet. There are at least two cooling fans A109, which are arranged longitudinally on the side of the charging pile housing 101 near the air inlet. When the two cooling fans A109 are in operation, external airflow enters the charging pile housing 101 through the air inlet on one side of the charging pile housing. The external airflow is used to exhaust the heat generated by the circuit structure A106 and circuit structure B107 inside the charging pile to the outside through the air outlet 108 of the charging pile housing 101, thus achieving the heat dissipation effect.

[0025] The bottom of the charging pile housing 101 is provided with a support rod 103, which is perpendicular to the bottom of the charging pile housing 101. The end of the support rod 103 away from the charging pile housing 101 is provided with a mounting base 104. The charging pile housing 101 can be fixed in position through the cooperation of the support rod 103 and the mounting base 104. A charging interface 105 is provided on one side of the inner wall of the charging pile housing 101.

[0026] The active heat dissipation unit 2 is located on the back of the charging pile housing 101. The active heat dissipation unit 2 can conduct and absorb the heat generated by the circuit structure A106 and circuit structure B107 inside the charging pile housing 101. The active heat dissipation unit 2 can assist the cooling fan A109 in dissipating heat inside the charging pile housing 101.

[0027] The active heat dissipation unit 2 includes a hybrid heat dissipation chamber 201. One side of the hybrid heat dissipation chamber 201 is connected to the back surface of the charging pile housing 101. A heat-conducting plate 204 is provided inside the hybrid heat dissipation chamber 201. One side of the heat-conducting plate 204 is tightly attached to the back of the charging pile housing 101. The heat-conducting plate 204 can conduct heat from inside the charging pile housing 101 into the heat-conducting plate 204. A heat-conducting copper pipe 205 is provided inside the heat-conducting plate 204. The heat-conducting copper pipe 205 extends outward from inside the heat-conducting plate 204 to one side of the heat-conducting plate 204. Multiple heat dissipation fins 206 are movably provided on the outside of the heat-conducting copper pipe 205. The heat-conducting plate 204 conducts heat from inside the charging pile housing 101 into the heat-conducting copper pipe 205. After receiving heat, the heat-conducting copper pipe 205 transfers it to the surface of the multiple heat dissipation fins 206 through heat transfer. The multiple heat dissipation fins 206 can receive heat from the heat-conducting copper pipe 205 and discharge it into the hybrid heat dissipation chamber 201.

[0028] The top of the hybrid heat dissipation chamber 201 is provided with an air-cooled filter chamber 202, and the bottom of the inner wall of the hybrid heat dissipation chamber 201 is provided with an air outlet filter hole 207. The surface of the air-cooled filter chamber 202 is provided with an air inlet filter hole 203. A cooling fan B213 is provided on the side of the air-cooled filter chamber 202 near the air inlet filter hole 203. There are at least two cooling fans B213, and the two cooling fans B213 are horizontally symmetrically arranged inside the air-cooled filter chamber 202. The interior of the air-cooled filter chamber 202 is connected to the interior of the hybrid heat dissipation chamber 201. When the two cooling fans B213 are in working condition, they can draw external airflow into the air-cooled filter chamber 202 and deliver it towards the interior of the hybrid heat dissipation chamber 201. When the air is blown into the interior of the hybrid heat dissipation chamber 201, the airflow will gradually flow between multiple heat dissipation fins 206 and exhaust the heat on the surface of the heat dissipation fins 206 to the outside through the air outlet filter hole 207 at the bottom of the hybrid heat dissipation chamber 201.

[0029] An electromagnetic slide rail 208 is provided on one side of the inner wall of the hybrid heat dissipation chamber 201. An electromagnetic slider 209 is provided on the outer surface of the electromagnetic slide rail 208, and the electromagnetic slider 209 can move linearly along the surface of the electromagnetic slide rail 208. A cleaning comb 210 is movably provided on the surface of the electromagnetic slider 209 through a connecting plate. A micro motor 216 is provided between the cleaning comb 210 and the electromagnetic slider 209. The output end of the micro motor 216 is fixedly connected to one side of the cleaning comb 210, and the micro motor 216 can control the cleaning comb 210 to rotate along its axis.

[0030] The cleaning comb 210 is located at the bottom of multiple heat dissipation fins 206, and multiple cleaning posts 211 are provided on the side of the cleaning comb 210 facing the multiple heat dissipation fins 206. Each cleaning post 211 is located in the area between two adjacent heat dissipation fins 206. The outer side of the cleaning post 211 is provided with a wing-shaped head 217, and the outer surface of the wing-shaped head 217 is provided with a cleaning brush. The number of electromagnetic slide rails 208, electromagnetic sliders 209 and cleaning combs 210 is at least two, and the two electromagnetic slide rails 208, electromagnetic sliders 209 and cleaning combs 210 are symmetrically arranged on the left and right sides of the inner wall of the hybrid heat dissipation chamber 201.

[0031] Each cleaning comb 210 has a rotary drive motor 212 on its outer surface. The output end of the rotary drive motor 212 has a sprocket drive structure. Each cleaning column 211 has a transmission gear at one end near the cleaning comb 210. Each cleaning column 211 is connected to the rotary drive motor 212 through the transmission gear and the sprocket drive structure.

[0032] Multiple heat dissipation fins 206 are linearly and equidistantly distributed along the axial direction of the heat-conducting copper pipe 205 on its outer surface. Positioning plates are respectively provided on the left and right sides of the heat-conducting copper pipe 205 near the multiple heat dissipation fins 206, and the interior of the two positioning plates is fixedly connected to the outer surface of the heat-conducting copper pipe 205. The two positioning plates can limit the position of the multiple heat dissipation fins 206. Compression springs are provided between the multiple heat dissipation fins 206, and the multiple heat dissipation fins 206 can slide along the outer surface of the heat-conducting copper pipe 205 in the area between the two positioning plates.

[0033] Each heat dissipation fin 206 has a liquid flow channel 219 on its surface, which is located inside the heat dissipation fin 206. The inlet and outlet pipes of the liquid flow channel 219 are respectively connected to a corrugated pipe A214 and a corrugated pipe B218. The ends of the corrugated pipes A214 and B218 away from the heat dissipation fin 206 are connected to the liquid tank 215. A miniature water pump is provided on the side of the liquid tank 215 near the corrugated pipe A214. The liquid in the liquid tank 215 is input into the liquid flow channel 219 on the heat dissipation fin 206 through the miniature water pump and flows back into the liquid tank 215 through the corrugated pipe B218, thereby realizing liquid cooling circulation. One side of the liquid tank 215 is fixedly connected to one side of the inner wall of the mixing heat dissipation chamber 201.

[0034] It should be noted that: Bellows A214 and B218 are made of 316L stainless steel with a wall thickness of 0.15mm, a corrugation pitch of 3mm, an effective number of corrugations of no less than 5, a single corrugation compensation of ±1mm, a total compensation of no less than ±5mm, a working pressure of no less than 0.3MPa, and a fatigue life of no less than 1 million cycles. The two ends of the bellows are connected to the inlet and outlet pipes of the liquid flow channel 219 and the interface pipe of the liquid tank 215 respectively via argon arc welding. Furthermore, the compression spring is made of 304 stainless steel with a wire diameter of 0.8mm, a mean diameter of 6mm, an effective number of coils of 8, a free length of 10mm, a stiffness k = 2N / mm, and a preload F0 = 4N. When the spacing of the heat dissipation fins 206 increases from the initial value of 8mm to the maximum value of 12mm, the spring compression increases from 2mm to 6mm, and the elastic force increases from 4N to 12N, ensuring that the extrusion force of the wing-shaped head 217 is sufficient to overcome the spring force and achieve spacing adjustment.

[0035] First, during use, the circuit structure A106 and circuit structure B107 inside the charging pile housing 101 generate heat during operation. The cooling fan A109 draws external airflow into the charging pile housing 101 through the air inlet. The airflow flows over the surfaces of circuit structure A106 and circuit structure B107, carrying the heat and dissipating it through the air outlet 108, thus completing the initial air cooling.

[0036] Meanwhile, the heat-conducting plate 204 is tightly attached to the back of the charging pile housing 101, conducting the heat inside the housing to the inside of the heat-conducting copper pipe 205, and the heat-conducting copper pipe 205 then transfers the heat to the surface of multiple heat dissipation fins 206. Inside the air-cooled filter chamber 202 at the top of the hybrid heat dissipation chamber 201, the cooling fan B213 draws in external airflow through the air inlet filter 203 and delivers it into the hybrid heat dissipation chamber 201. The airflow flows through the gaps between multiple heat dissipation fins 206, expelling the heat from the surface of the heat dissipation fins 206 to the outside through the air outlet filter 207 at the bottom of the hybrid heat dissipation chamber 201, thus completing active air cooling. At the same time, a micro water pump inputs coolant from the liquid tank 215 through the bellows A214 into the liquid flow channel 219 inside each heat dissipation fin 206. The coolant flows in the liquid flow channel 219 and absorbs the heat on the heat dissipation fins 206, and then flows back to the liquid tank 215 through the bellows B218, completing the liquid cooling cycle. The liquid cooling and air cooling paths work in parallel to maintain the temperature of the heat dissipation fins 206 within a safe range.

[0037] In addition, the electromagnetic slider 209 moves linearly along the electromagnetic slide rail 208, driving the cleaning comb 210 to reciprocate at the bottom of multiple heat dissipation fins 206. The cleaning brush on the surface of the outer wing-shaped head 217 of the cleaning column 211 sweeps across the surface of the heat dissipation fins 206 during the movement, scraping away accumulated dust and achieving a self-cleaning function.

[0038] However, in actual operation, it was found that due to the inherent temperature rise of the liquid cooling channel from inlet to outlet, and the gradual temperature increase of the airflow blown in by the cooling fan B213 during its flow, the combined effect of these two factors resulted in localized high-temperature areas within the heat dissipation fin array 206, leading to uneven heating and cooling. Furthermore, the fixed-spacing heat dissipation fin array 206 cannot dynamically adjust airflow distribution according to the heat load distribution, preventing further optimization of heat dissipation efficiency. Additionally, if liquid cooling pipes are laid on the surface of the heat dissipation fins 206, changes in the spacing of the fins 206 can cause the pipes to be stretched or compressed, posing a risk of weld cracking and coolant leakage.

[0039] To solve the above technical problems, the device adopts the following advanced technical solution: multiple heat dissipation fins 206 are interconnected by compression springs, and multiple heat dissipation fins 206 can slide along the outer surface of the heat-conducting copper pipe 205 between two positioning plates.

[0040] Temperature sensors (such as PT1000 thin-film platinum resistance thermometers) are arranged at the base of each heat sink fin 206 or near the heat-conducting copper pipe 205. All temperature sensors form a temperature sensing matrix to monitor the temperature distribution of each area of ​​the heat sink fin array 206 in real time. The control system determines the current heat dissipation status based on the feedback data from the temperature sensing matrix.

[0041] It should be noted that the temperature sensors are PT1000 thin-film platinum resistance thermometers, with a total of N sensors, where N equals the total number of heat sink fins 206. Each temperature sensor is attached to the root surface of the corresponding heat sink fin 206 using thermal grease, 2mm to 3mm away from the outer surface of the thermally conductive copper pipe 205. The signal lines of all temperature sensors are converged via shielded cables to a control circuit board inside the hybrid heat dissipation chamber 201. The control circuit board is equipped with an analog-to-digital converter module and a microcontroller. The microcontroller cyclically collects data from each temperature sensor at a period of 100ms to construct a temperature matrix T[i], where i = 1, 2, ..., N. When the temperature sensing matrix detects that the temperature of all heat dissipation fins 206 is below the preset safety threshold and the temperature difference between different areas is less than 5%, the control system determines that the current heat dissipation status is good. At this time, the rotary drive motor 212 does not operate, the cleaning column 211 remains vertical, the wing-shaped head 217 does not exert additional pressure on the heat dissipation fins 206, the heat dissipation fins 206 maintain the initial spacing under the action of the compression spring, and the electromagnetic slider 209 drives the cleaning comb 210 to make a complete reciprocating motion along the electromagnetic slide rail 208 every once in a while. The cleaning brush on the outer wing-shaped head 217 of the cleaning column 211 sweeps across the surface of the heat dissipation fins 206, scrapes off the accumulated dust, and completes self-cleaning. The cooling fan B213 and the micro water pump maintain the basic speed and flow rate.

[0042] When the temperature sensing matrix detects that the temperature in a certain area is more than 10% higher than the average temperature, and the temperature in that area exceeds a preset safety threshold, the control system determines that the area is a localized high-temperature zone. At this time, the control system performs the following actions: The rotary drive motor 212 on the cleaning comb 210 corresponding to the high temperature area is started, and all the cleaning columns 211 on this side are driven to rotate synchronously by a set angle through the sprocket drive structure. The wing-shaped head 217 at the bottom of the cleaning column 211 deflects accordingly, and its streamlined contour wedges into the gap between adjacent heat dissipation fins 206, applying lateral extrusion force to the heat dissipation fins 206.

[0043] It should be noted that: the rotary drive motor 212 on the cleaning comb 210 corresponding to the high-temperature zone is started, and all the cleaning columns 211 on that side are driven to rotate synchronously by a set angle θ through the sprocket drive structure. The set angle θ is determined by the following formula: θ = K × (T_i - T_avg) / T_avg × θ_max, where T_i is the measured temperature of the i-th heat dissipation fin 206, T_avg is the average temperature of all heat dissipation fins 206, θ_max is the preset maximum working angle (range 20°~45°), and K is the proportional coefficient (range 0.5~1.5). When the calculated result of θ is less than 0°, the cleaning column 211 (211) remains vertical and does not move. When the calculated result of θ is greater than θ_max, θ = θ_max is taken. The maximum working angle θ_max is pre-calibrated according to the initial spacing of the heat dissipation fins 206 and the stiffness of the compression spring to ensure that the spacing increment of the heat dissipation fins 206 at this angle does not exceed the maximum compensation amount of the bellows A214 and the bellows B218.

[0044] At this time, the deflection of the airfoil head 217 produces two effects simultaneously: First, the side of the airfoil head 217 presses against the surface of the heat dissipation fins 206, overcoming the preload of the compression spring, causing all the heat dissipation fins 206 on that side to slide along the heat-conducting copper pipe 205, increasing the spacing and reducing airflow resistance in that area; Second, the streamlined profile of the airfoil head 217 guides the airflow, deflecting and concentrating the airflow blown in by the cooling fan B213 into the high-temperature area. Furthermore, the control system can control the micro motor 216 to deflect the two cleaning combs 210 in opposite directions (left comb counterclockwise, right comb clockwise), forming a V-shaped structure (such as...). Figure 11 As shown in the figure, the airflow blown in by the cooling fan B213 is further concentrated in the middle high-temperature area, enhancing the macroscopic airflow effect.

[0045] Finally, once the temperature in the high-temperature zone drops to within 5% below the average temperature and below the safety threshold, the control system controls the rotary drive motor 212 to rotate in the opposite direction, the cleaning column 211 rotates back to a vertical position, the wing head 217 exits the gap, the compression spring pulls the heat dissipation fins 206 back to the initial spacing, and the bellows A214 and B218 subsequently reset. The micro motor 216 also controls the cleaning comb 210 to rotate back to a horizontal position.

[0046] When the temperature sensing matrix detects that the temperature of all heat sink fins 206 exceeds the preset safety threshold and continues to rise, the control system determines that the overall operating condition is high temperature. At this time, the control system performs the following actions: The control system simultaneously starts the rotary drive motors 212 on both sides of the cleaning comb 210, driving all the cleaning columns 211 to rotate synchronously to the maximum working angle. All the wing-shaped heads 217 simultaneously squeeze the corresponding heat dissipation fins 206, increasing the spacing of the entire fin array, reducing the overall flow resistance, and increasing the total air volume. At the same time, the control system increases the speed of the cooling fan B213 to the highest level and increases the flow rate of the micro water pump to enhance the heat dissipation capacity of air cooling and liquid cooling. When the overall temperature drops below the safe threshold, the control system gradually reduces the angle of the rotary drive motors 212, causing the cleaning columns 211 to slowly rotate back. The heat dissipation fins 206 gradually return to their initial spacing under the action of the compression spring, and the cooling fan B213 and the micro water pump also return to the basic operating state.

[0047] When the temperature sensing matrix detects that the temperature in the left region is significantly higher than that in the right region (temperature difference exceeding 15%), and the temperature on the left exceeds the safety threshold, the control system determines it to be a unilateral high-temperature condition. At this time, the control system performs the following actions: When the left side is hot, the two cleaning combs 210 are controlled to deflect counterclockwise, directing the airflow towards the hot area on the left. Simultaneously, the rotary drive motor 212 on the left cleaning comb 210 drives the cleaning column 211 on that side to deflect synchronously, increasing the spacing of the left heat dissipation fins 206. The rotary drive motor 212 on the right cleaning comb 210 remains inactive, keeping the spacing of the right heat dissipation fins 206 unchanged. Through this combined adjustment, more airflow is directed towards the hot area on the left. Once the temperature on the left side drops to a level with the right, the control system gradually resets all actuators, further directing the airflow to the left.

[0048] When the temperature sensing matrix detects that the temperature in any area exceeds the limit threshold, and the cooling fan B213 or the miniature water pump shows a fault signal, the control system determines it to be an extreme fault condition. At this time, the control system performs the following actions: The control system rotates all cleaning columns 211 to a horizontal position (90°) using the rotary drive motor 212, aligning the long axis of the airfoil heads 217 with the airflow direction. Simultaneously, the control system controls two electromagnetic sliders 209 to slide towards each other along the electromagnetic rail 208 to the central region of the multiple heat dissipation fins 206, causing the airfoil heads 217 on the left and right cleaning combs 210 to overlap (as shown in the image) in the central region of the heat dissipation fin array 206. Figure 12As shown, the wing-shaped head 217 uses an aluminum alloy frame covered with a thermally conductive silicone layer. The thickness of the thermally conductive silicone layer is 1mm to 2mm, and the thermal conductivity is not less than 2W / (m·K). The heat from the heat dissipation fins 206 in the high-temperature area is transferred sequentially through the thermally conductive silicone layer of the wing-shaped head 217 and the aluminum alloy frame to the wing-shaped head 217 in the low-temperature area, and then to the heat dissipation fins 206 in the low-temperature area, thereby achieving passive temperature uniformity of the entire heat dissipation fin array 206. At the same time, the control system triggers power reduction protection, reducing the output power of the charging pile until the temperature drops back to a safe range, and issues a fault alarm signal to prompt maintenance personnel to perform maintenance.

[0049] It should be noted that all the above control actions are recalculated and the actuator's posture is updated based on the latest temperature sensor data within each control cycle, forming a closed-loop feedback control. The control cycle is 100ms, meaning that temperature data is collected, the control quantity is calculated, and the rotation angle of the cleaning column 211 is updated every 100ms. The reciprocating motion of the electromagnetic slider 209 and the temperature control adjustment action can be performed simultaneously without interference. The cleaning brush continuously performs the dust removal function during each adjustment process.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An active heat dissipation smart charging pile, comprising a charging pile body (1) and an active heat dissipation unit (2), characterized in that: The charging pile body (1) includes a charging pile shell (101). A sealing door (102) is hinged to one side of the charging pile shell (101). The sealing door (102) is used to seal the inside of the charging pile shell (101). Circuit structure A (106) and circuit structure B (107) are fixedly installed inside the charging pile shell (101). Circuit structure A (106) and circuit structure B (107) cooperate with each other to achieve external discharge. The active heat dissipation unit (2) includes a hybrid heat dissipation chamber (201). One side of the hybrid heat dissipation chamber (201) is connected to the back surface of the charging pile housing (101). The hybrid heat dissipation chamber (201) is provided with a heat-conducting plate (204). One side of the heat-conducting plate (204) is tightly attached to the back of the charging pile housing (101). The heat-conducting plate (204) can conduct heat from the charging pile housing to the heat-conducting plate (204). The heat-conducting plate (204) is provided with a heat-conducting copper pipe (205). The heat-conducting copper pipe (205) extends outward from the inside of the heat-conducting plate (204) to one side of the heat-conducting plate (204). Multiple heat dissipation fins (206) are movably provided on the outside of the heat-conducting copper pipe (205).

2. The intelligent charging pile with active heat dissipation according to claim 1, characterized in that: The top of the hybrid heat dissipation chamber (201) is provided with an air-cooled filter chamber (202), and the bottom of the inner wall of the hybrid heat dissipation chamber (201) is provided with an air outlet filter hole (207). The surface of the air-cooled filter chamber (202) is provided with an air inlet filter hole (203). The side of the air-cooled filter chamber (202) near the air inlet filter hole (203) is provided with a cooling fan B (213). The number of cooling fans B (213) is at least two, and the two cooling fans B (213) are horizontally symmetrically arranged inside the air-cooled filter chamber (202). The interior of the air-cooled filter chamber (202) is connected to the interior of the hybrid heat dissipation chamber (201).

3. The intelligent charging pile with active heat dissipation according to claim 1, characterized in that: The heat-conducting plate (204) conducts heat from the charging pile housing (101) to the interior of the heat-conducting copper pipe (205). After receiving heat, the heat-conducting copper pipe (205) transfers the heat to the surface of multiple heat dissipation fins (206) through heat transfer. The multiple heat dissipation fins (206) can receive heat from the heat-conducting copper pipe (205) and discharge it into the interior of the mixed heat dissipation chamber (201).

4. The intelligent charging pile with active heat dissipation according to claim 2, characterized in that: When the two cooling fans B (213) are in operation, they can draw external airflow into the air-cooled filter chamber (202) and deliver it towards the interior of the mixing heat dissipation chamber (201). When the gas is blown into the interior of the mixing heat dissipation chamber (201), the airflow will gradually flow between multiple heat dissipation fins (206) and discharge the heat on the surface of the heat dissipation fins (206) to the outside through the air outlet filter hole (207) at the bottom of the mixing heat dissipation chamber (201).

5. The intelligent charging pile with active heat dissipation according to claim 1, characterized in that: An electromagnetic slide rail (208) is provided on one side of the inner wall of the hybrid heat dissipation chamber (201). An electromagnetic slider (209) is provided on the outer surface of the electromagnetic slide rail (208). The electromagnetic slider (209) can move linearly along the surface of the electromagnetic slide rail (208). A cleaning comb (210) is movably provided on the surface of the electromagnetic slider (209) through a connecting plate. A micro motor (216) is provided between the cleaning comb (210) and the electromagnetic slider (209). The output end of the micro motor (216) is fixedly connected to one side of the cleaning comb (210). The micro motor (216) can control the cleaning comb (210) to rotate along its axis.

6. The intelligent charging pile with active heat dissipation according to claim 5, characterized in that: The cleaning comb (210) is located at the bottom of multiple heat dissipation fins (206), and the cleaning comb (210) has multiple cleaning columns (211) on the side facing the multiple heat dissipation fins (206), and each cleaning column (211) is located in the area between two adjacent heat dissipation fins (206). The outer side of the cleaning column (211) is provided with a wing-shaped head (217), and the outer surface of the wing-shaped head (217) is provided with a cleaning brush. The number of electromagnetic slide rails (208), electromagnetic sliders (209) and cleaning combs (210) is at least two, and the two electromagnetic slide rails (208), electromagnetic sliders (209) and cleaning combs (210) are symmetrically arranged on the left and right sides of the inner wall of the hybrid heat dissipation chamber (201).

7. The intelligent charging pile with active heat dissipation according to claim 6, characterized in that: Multiple heat dissipation fins (206) are linearly and equidistantly distributed on the outer surface of the heat-conducting copper pipe (205) along its axial direction. Positioning plates are respectively provided on the left and right sides of the heat-conducting copper pipe (205) near the multiple heat dissipation fins (206), and the interior of the two positioning plates is fixedly connected to the outer surface of the heat-conducting copper pipe (205). The two positioning plates can limit the position of the multiple heat dissipation fins (206). Compression springs are provided between the multiple heat dissipation fins (206), and the multiple heat dissipation fins (206) can slide along the outer surface of the heat-conducting copper pipe (205) in the area between the two positioning plates.

8. The intelligent charging pile with active heat dissipation according to claim 7, characterized in that: Each of the heat dissipation fins (206) has a liquid flow channel (219) on its surface. The liquid flow channel (219) is located inside the heat dissipation fin (206). The inlet pipe and outlet pipe of the liquid flow channel (219) are respectively connected to a corrugated pipe A (214) and a corrugated pipe B (218). The ends of the corrugated pipe A (214) and the corrugated pipe B (218) away from the heat dissipation fin (206) are connected to a liquid tank (215). A miniature water pump is provided on the side of the liquid tank (215) near the corrugated pipe A (214).

9. The intelligent charging pile with active heat dissipation according to claim 1, characterized in that: The charging pile housing (101) has an air inlet and an air outlet (108) on the left and right sides of the inner wall, respectively. A cooling fan A (109) is provided on the side of the charging pile housing (101) near the air inlet. There are at least two cooling fans A (109), and the two cooling fans A (109) are arranged longitudinally on the side of the charging pile housing (101) near the air inlet.

10. The intelligent charging pile with active heat dissipation according to claim 1, characterized in that: The bottom of the charging pile housing (101) is provided with a support rod (103), the support rod (103) is perpendicular to the bottom of the charging pile housing (101), and the end of the support rod (103) away from the charging pile housing (101) is provided with a mounting base (104). The charging pile housing (101) can be fixed in position by the cooperation of the support rod (103) and the mounting base (104). A charging interface (105) is provided on one side of the inner wall of the charging pile housing (101).

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