Box storage type electric vehicle charging pile

Abstract

The invention relates to the technical field of electric vehicles, in particular to a box storage type electric vehicle charging pile which comprises a support and a charging system and further comprises an inner frame arranged on the upper portion of the support and used for storing the charging system, an outer frame is arranged on the outer side of the inner frame and arranged on the top of the support, and the outer frame is arranged on the upper portion of the support and used for storing the charging system. A circulation groove is formed between the outer frame and the inner frame and completely wraps the periphery of the inner frame, so that gas in the inner frame is communicated with the outside through the circulation groove, according to the box body storage type electric vehicle charging pile, the circulation groove which is completely wrapped is formed between the inner frame and the outer frame, an effective heat buffering area is constructed, and in a low-temperature environment, the heat buffering effect is good. The external cold air does not directly impact the outer wall of the inner frame, but exchanges heat with the waste heat from the inner frame in the circulating groove, so that the temperature of the outer wall of the inner frame is not suddenly reduced below the dew point, and the generation of condensation dew on the surface of the inner wall of the inner frame and in the charging system is fundamentally avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric vehicles, in particular to a box-stored electric vehicle charging pile. BACKGROUND

[0002] The charging pile, also known as an electric vehicle charging station or an electric vehicle power supply device, is a device for providing electric energy for electric vehicles, so that the electric vehicles can store enough electric energy to support their operation. The charging and battery replacement station is important supporting infrastructure necessary for the development of electric vehicles and has very important social and economic benefits.

[0003] However, in actual use, we find that the existing box-stored electric vehicle charging pile is prone to condensation on the inner wall of the box due to the temperature difference between the inside and outside of the charging pile in a humid environment, especially in rainy and snowy weather. The condensation phenomenon not only reduces the insulation performance of electrical components, but also may cause safety hazards such as short circuit or electric leakage. The protection measures for condensation in the prior art mostly adopt a single heating and dehumidifying method, which can reduce the accumulation of moisture to a certain extent, but the energy consumption is high and the response is lagging. Therefore, we propose a box-stored electric vehicle charging pile. SUMMARY

[0004] One of the technical problems to be solved by the present application is how to effectively reduce the condensation risk inside the box and improve the operation safety and reliability of the charging pile in a humid environment.

[0005] To solve the above technical problems, the application provides a box-stored electric vehicle charging pile, which comprises a support, a charging system, and further comprises:

[0006] An inner frame is arranged above the support and is used for storing the charging system. An outer frame is arranged on the outer side of the inner frame. The outer frame is arranged on the top of the support. A flow channel is arranged between the outer frame and the inner frame. The flow channel completely surrounds the inner frame, so that the gas in the inner frame is communicated with the outside through the flow channel.

[0007] A frame door is arranged on one side of the outer frame through a rotating shaft. The frame door is a hollow structure.

[0008] A low-temperature guiding assembly is arranged on the outer side of the outer frame. The low-temperature guiding assembly is used for guiding cold air into the inner frame and guiding the high-temperature gas in the inner frame to be discharged through the flow channel in a low-temperature environment, so as to adjust the temperature in the inner frame and prevent the external cold air from directly contacting the outer wall of the inner frame.

[0009] A high-temperature exhaust assembly is arranged outside the outer frame and is used to automatically exhaust the hot air accumulated inside the inner frame according to the ambient temperature in a high-temperature environment, to drive the air inside the inner frame to flow with the air outside, and to use the outside air flow to take away the heat inside the inner frame.

[0010] In some embodiments, the low-temperature guide assembly includes two guide plates arranged between the inner frame and the outer frame, a wind driver is arranged on the frame door to generate a wind driving force to drive the outside air flow into the inner frame, a guide is arranged outside the outer frame to guide the high-temperature air flow of the inner frame, and the high-temperature air flow inside the inner frame is driven to flow through the flow channel and then to the top of the outer frame.

[0011] In some embodiments, the two guide plates are symmetrically distributed, and the opposite sides of the two guide plates are arranged on the side walls of the outer frame, the opposite sides thereof face the inner frame, the opposite sides of the two guide plates are arranged on the top and the bottom of the inner frame, and the opposite sides thereof maintain a symmetric gap with the left and right sides of the inner frame, and the sides of the two guide plates away from the outer frame are inwardly inclined to form a guide channel to guide the hot air inside the inner frame to flow into the flow channel.

[0012] In some embodiments, the wind driver includes a wind driver cover arranged at the center of the frame door, a plurality of filter holes are arranged at one end of the wind driver cover away from the inner frame, a wind driver frame is arranged in the wind driver cover, a motor is arranged at one end of the wind driver cover away from the inner frame, a wind driver shaft is arranged at the output end of the motor and rotates at the center of the wind driver frame, a plurality of fan blades are arranged at one end of the wind driver shaft away from the motor, and a temperature controller is arranged in the inner frame and cooperates with the motor.

[0013] In some embodiments, the guide includes a guide pipe arranged at one side of the outer frame away from the frame door, the guide pipe is arc-shaped, one end thereof arranged on the outer frame is communicated with the flow channel, and the other end thereof faces the top of the outer frame, and a shielding cover is arranged at one end of the guide pipe away from the outer frame.

[0014] In some embodiments, the high-temperature exhaust assembly includes high-temperature driving members arranged at both sides of the top of the outer frame, respectively, to automatically start and stop according to the change of the ambient temperature, to drive the air inside the inner frame to flow with the air outside, and an air flow member is arranged in the outer frame to automatically adjust the air flow exchange inside the inner frame according to the ambient temperature in cooperation with the high-temperature driving members.

[0015] In some embodiments, the high-temperature driving member comprises a fixed plate arranged at the top of the outer frame, a fixed groove for storing a heat-expanding liquid is arranged in the fixed plate, a driving plate is slidably arranged in the fixed groove, the heat-expanding liquid is arranged above the driving plate, a driving rod is slidably arranged at the bottom of the driving plate and in the fixed plate, a connecting plate is arranged at the bottom end of the driving rod and slidably arranged in the flow channel, a driving spring is arranged outside the driving rod and at the bottom of the driving plate and in the fixed plate.

[0016] A buffer pipe is arranged at the top of the fixed plate and communicates with the fixed groove, a buffer plate is slidably arranged in the buffer pipe, a plurality of buffer holes are arranged outside the buffer pipe, an air bag is arranged outside the buffer pipe and cooperates with the buffer holes, the distance between the buffer holes and the top end of the buffer pipe is greater than the thickness of the buffer plate, a buffer spring is arranged at the top of the buffer plate and in the buffer pipe, and a back pressure hole is arranged at the center of the buffer pipe and the buffer plate.

[0017] In some embodiments, the air flow member comprises flow filter plates arranged at the two sides of the outer frame and the inner frame, respectively, the four flow filter plates are arranged on the same plane, two transmission rods are rotatably arranged at the bottom of the connecting plate through pivots, one end of each of the two transmission rods is rotatably arranged with a baffle through a pivot, the two baffles are hollow and cooperates with the adjacent flow filter plates, two limiting rods are arranged in the outer frame and penetrate through the adjacent two baffles and abut the inner walls of the adjacent two baffles, and a plurality of rollers are rotatably arranged at the bottom of the baffles through pivots.

[0018] In some embodiments, two drainage members are arranged at the bottom of the outer frame to timely drain the condensed water or infiltrated rainwater accumulated in the outer frame.

[0019] The drainage member comprises a drainage pipe arranged at the bottom of the outer frame, a drainage groove is arranged in the drainage pipe, and an insect screen is arranged at the bottom end of the drainage pipe.

[0020] In some embodiments, the heat-expanding liquid stored in the fixed groove is low-viscosity silicone oil.

[0021] The present application has at least the following advantages:

[0022] 1. By setting a fully wrapped flow channel between the inner frame and the outer frame, an effective heat buffer area is constructed. In a low temperature environment, the external cold air will not directly impact the outer wall of the inner frame, but will first exchange heat with the residual heat from the inner frame in the flow channel, which ensures that the temperature of the outer wall of the inner frame will not suddenly drop below the dew point, thereby fundamentally avoiding the generation of condensation and dew on the inner wall surface of the inner frame and the internal charging system.

[0023] 2. The high-temperature exhaust assembly utilizes the physical properties of heat-expanding liquid to automatically open the ventilation channel when the ambient temperature rises, without the need for electric power driving. In combination with the air flow member, an effective chimney effect or convection channel is formed to forcibly exhaust the internal accumulated hot air, effectively using natural wind or convection to cool the charging system, prevent overheating, and ensure charging efficiency and equipment safety. The drainage member can automatically and timely drain the condensed water that may accumulate in the flow channel or accidental rainwater, preventing water accumulation corrosion and microbial breeding, and the design of the insect screen and flow filter plate effectively blocks dust and insects from entering while ensuring ventilation, reducing the frequency of cleaning and maintenance.

[0024] 3. The inner frame as the core bearing unit is physically protected by the outer frame and the flow channel, avoiding direct wind and sun exposure and physical impact. The flow channel between the inner frame and the outer frame not only serves as a heat buffer layer to slow down temperature changes, but also drives the heat absorbed by the outer frame to be gradually dissipated through air convection in the flow channel, effectively reducing the efficiency of heat radiation transmission. At the same time, the heat-expanding liquid pushes the baffle to automatically open the ventilation channel when the temperature rises, allowing the internal heat of the inner frame to be quickly discharged, forming a dynamic heat balance. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present application;

[0026] Figure 2 is a schematic diagram of the inner frame structure of the present application;

[0027] Figure 3 is a schematic diagram of the flow channel structure of the present application;

[0028] Figure 4 is a schematic diagram of the outer frame structure of the present application;

[0029] Figure 5 is a schematic diagram of the air flow member structure of the present application;

[0030] Figure 6 is a schematic diagram of the high-temperature driving member structure of the present application;

[0031] Figure 7 is a schematic diagram of the back pressure hole structure of the present application;

[0032] Figure 8 The schematic diagram of the baffle structure of the application;

[0033] Figure 9 The schematic diagram of the limiting frame structure of the application;

[0034] Figure 10 The schematic diagram of the partial structure of the drainage part of the application;

[0035] Figure 11 The schematic diagram of the structure insect screen of the application.

[0036] In the figure: 1, support; 2, charging system; 3, inner frame; 4, outer frame; 5, flow-through groove; 6, frame door; 7, low-temperature guiding assembly; 8, high-temperature discharge assembly; 9, guiding plate; 10, wind driving part; 101, wind driving cover; 102, filter hole; 103, wind driving frame; 104, motor; 105, wind driving shaft; 106, fan blade; 107, temperature controller; 11, guiding part; 111, guiding pipe; 112, shielding cover; 12, high-temperature driving part; 121, fixing plate; 122, fixing groove; 123, driving plate; 124, driving rod; 125, connecting plate; 126, driving spring; 127, pressure relief pipe; 128, pressure relief plate; 129, pressure relief hole; 1210, air bag; 1211, pressure relief spring; 1212, back pressure hole; 13, air flow-through part; 131, flow-through filter plate; 132, transmission rod; 133, baffle; 134, limiting rod; 135, roller; 136, limiting frame; 14, drainage part; 141, drainage pipe; 142, drainage groove; 143, insect screen. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0038] Embodiment 1: please refer to Figures 1-11 The application provides a technical solution: a box storage type electric vehicle charging pile, comprising a support 1 and a charging system 2, further comprising:

[0039] An inner frame 3 is arranged above the support 1 and is used for storing the charging system 2. An outer frame 4 is arranged on the top of the support 1. A flow-through groove 5 is arranged between the outer frame 4 and the inner frame 3, and the flow-through groove 5 completely wraps around the four sides of the inner frame 3, so that the gas in the inner frame 3 is communicated with the outside through the flow-through groove 5;

[0040] A frame door 6 is arranged on one side of the outer frame 4 through a rotating shaft, and the frame door 6 is a hollow structure.

[0041] Low temperature guide assembly 7 is arranged outside the outer frame 4, which is used to guide cold air into the inner frame 3 in the low temperature environment, and guide the high temperature air in the inner frame 3 to be discharged through the flow channel 5, so as to adjust the temperature in the inner frame 3, and prevent the external cold air from directly contacting the outer wall of the inner frame 3;

[0042] High temperature discharge assembly 8 is arranged outside the outer frame 4, which is used to automatically discharge the accumulated hot air in the inner frame 3 according to the ambient temperature in the high temperature environment, so as to make the air in the inner frame 3 flow with the external air, and use the external air flow to take away the heat in the inner frame 3.

[0043] The low temperature guide assembly 7 includes two guide plates 9 arranged between the inner frame 3 and the outer frame 4, and the frame door 6 is provided with a wind driving element 10, which is used to generate wind driving force to drive the external air flow into the inner frame 3. The outer frame 4 is provided with a guide element 11, which is used to guide the high temperature air of the inner frame 3, and drive the high temperature air in the inner frame 3 to be discharged to the top of the outer frame 4 after passing through the flow channel 5.

[0044] The two guide plates 9 are symmetrically distributed, and opposite sides of the two guide plates 9 are arranged on the side walls of the outer frame 4, and opposite sides thereof face the inner frame 3, and the opposite sides of the two guide plates 9 are arranged on the top and bottom of the inner frame 3 and keep a symmetric gap with the left and right sides of the inner frame 3, and the side of the two guide plates 9 away from the outer frame 4 is inclined inward to form a guide channel, guiding the hot air inside the inner frame 3 to flow into the flow channel 5. When the cold air enters the inner frame 3, it will first contact the charging system 2 and quickly absorb the heat generated by the operation of the charging system 2. Since the fan blade 106 is located at the center of the frame door 6, the cold air will be diverted to both sides after impacting the charging system 2 under the guidance of the fan blade 106 and form a diversion air direction along the inner side wall of the inner frame 3, thereby transporting the heat in the inner frame 3 to the direction of the guide plate 9. The inclined structure of the guide plate 9 makes the airflow more easily enter the flow channel 5 between the inner frame 3 and the outer frame 4, so that the heat airflow in the inner frame 3 moves along the flow channel 5. When the heat airflow flows in the flow channel 5, condensation water can be avoided between the inner wall of the inner frame 3 and the outer wall of the inner frame 3 due to a large temperature difference, thereby causing the equipment in the inner frame 3 to be damp or short-circuit risk. Since the entire flow channel 5 completely wraps the inner frame 3, the air layer between the outer wall of the inner frame 3 and the inner wall of the outer frame 4 forms a continuous heat exchange channel, and the outer wall of the inner frame 3 does not directly contact the cold air outside, effectively solving the condensation problem of the inner wall of the inner frame 3 due to a sudden change in temperature difference. At the same time, the outer wall of the outer frame 4 is directly in contact with the cold air, and the inner wall of the outer frame 4 is in contact with the hot air discharged by the inner frame 3, so that the inner wall of the outer frame 4 condenses. The condensation on the inner wall of the outer frame 4 flows downward along the inner wall of the outer frame 4 and converges into the drain pipe 141 at the bottom of the outer frame 4. The condensation on the inner wall of the outer frame 4 can also absorb part of the heat in the evaporation process before it completely flows into the drain pipe 141, further reducing the temperature gradient inside the outer frame 4, thereby accelerating the heat dissipation efficiency and stabilizing the temperature difference between the inside and outside.

[0045] The wind driving part 10 comprises a wind driving cover 101 arranged at the center of the frame door 6, a plurality of filter holes 102 are arranged at one end of the wind driving cover 101 away from the inner frame 3, a wind driving frame 103 is arranged in the wind driving cover 101, a motor 104 is arranged at one end of the wind driving cover 101 away from the inner frame 3, a wind driving shaft 105 is arranged at the output end of the motor 104, and the wind driving shaft 105 is rotatably arranged at the shaft center of the wind driving frame 103, a plurality of fan blades 106 are arranged at one end of the wind driving shaft 105 away from the motor 104, and a temperature controller 107 is arranged in the inner frame 3 and cooperates with the motor 104, the temperature controller 107 arranged in the inner frame 3 can detect the temperature change in the inner frame 3 and send a signal to start the motor 104, when the motor 104 is started, the motor 104 drives the wind driving shaft 105 at the output end to rotate, and the wind driving shaft 105 drives the fan blades 106 on the outer side to rotate synchronously, so that the fan blades 106 push the air to flow when rotating, and the cold air outside the wind driving cover 101 enters the inner frame 3 through the filter holes 102, and the filter holes 102 arranged on the wind driving cover 101 effectively block dust and impurities, so that the entering air is clean.

[0046] The guide 11 comprises a guide pipe 111 arranged at one side of the outer frame 4 away from the frame door 6, the guide pipe 111 is arc-shaped, one end of the guide pipe 111 arranged on the outer frame 4 is communicated with the flow channel 5, and the other end of the guide pipe 111 faces the top of the outer frame 4, and a shielding cover 112 is arranged at one end of the guide pipe 111 away from the outer frame 4.

[0047] The high-temperature exhaust assembly 8 comprises high-temperature driving parts 12 arranged at two sides of the top of the outer frame 4 respectively, the high-temperature driving parts 12 are used to automatically start and stop according to the change of the external temperature, so as to drive the air in the inner frame 3 to flow with the external air, an air flow part 13 is arranged in the outer frame 4, the air flow part 13 is used to automatically adjust the air exchange between the inner frame 3 and the outside according to the environmental temperature in cooperation with the high-temperature driving parts 12, the hot air in the flow channel 5 continuously flows, and finally is discharged through the guide pipe 111 communicated with the flow channel 5, the other end of the guide pipe 111 faces the top of the outer frame 4, and the purpose is to avoid the accumulation of snow on the top of the outer frame 4 in snowy weather, so as to prevent the top of the outer frame 4 from being in a low-temperature state for a long time, and further affect the normal dissipation of the internal heat, the shielding cover 112 at one end of the guide pipe 111 can effectively prevent snowflakes and rainwater from directly entering the flow channel 5, while allowing the hot air to be smoothly discharged, the inclined design of the shielding cover 112 makes the falling snow naturally slide, avoids accumulation and blockage, ensures that the heat dissipation channel is unobstructed throughout the year, and the shielding cover 112 can also form a local negative pressure when the wind is relatively large, so as to enhance the suction effect of the hot air in the flow channel 5, and further improve the heat dissipation efficiency.

[0048] The high-temperature driving part 12 comprises a fixed plate 121 arranged at the top of the outer frame 4, a fixed groove 122 for storing the heat-expanding liquid is arranged in the fixed plate 121, a driving plate 123 is arranged in the fixed groove 122 in a sliding mode, the heat-expanding liquid is above the driving plate 123, a driving rod 124 is arranged at the bottom of the driving plate 123 in a sliding mode, the driving rod 124 is arranged in the fixed plate 121 in a sliding mode, a connecting plate 125 is arranged at the bottom end of the driving rod 124, the connecting plate 125 is arranged in the flow groove 5 in a sliding mode, a driving spring 126 is arranged outside the driving rod 124, and the two ends of the driving spring 126 are arranged at the bottom of the driving plate 123 and in the fixed plate 121 respectively;

[0049] The top of the fixed plate 121 is provided with a buffer pipe 127 which is communicated with the fixed groove 122. The buffer pipe 127 is slidably provided with a buffer plate 128. A plurality of buffer holes 129 are formed in the outer side of the buffer pipe 127. An air bag 1210 is arranged on the outer side of the buffer pipe 127 and cooperates with the plurality of buffer holes 129. The distance between the plurality of buffer holes 129 and the top end of the buffer pipe 127 is greater than the thickness of the buffer plate 128. The top of the buffer plate 128 is provided with a buffer spring 1211 which is arranged in the buffer pipe 127. A back pressure hole 1212 is formed in the axial center of the buffer pipe 127 and the buffer plate 128. When the temperature of the external environment is relatively high, the low-viscosity silicone oil stored in the fixed groove 122 is heated and expanded, so that the driving plate 123 is pressed to move downward and slide in the fixed groove 122. When the driving plate 123 moves downward, the driving plate 123 pushes the driving rod 124 at the bottom thereof to move downward synchronously. At this time, the driving spring 126 starts to compress the force. The driving rod 124 drives the connecting plate 125 to move downward in the circulation groove 5 in the process of descending. If the external temperature is too high, the driving plate 123 has contacted with the bottom of the fixed groove 122. With the continuous expansion of the low-viscosity silicone oil, the pressure in the fixed groove 122 will continue to increase. At this time, the increased pressure will slowly enter the air bag 1210 through the back pressure hole 1212. If the back pressure hole 1212 cannot completely release the pressure, the air pressure in the fixed groove 122 will push the buffer plate 128 upward, and the buffer spring 1211 is compressed, so as to push the buffer plate 128 to the upper side of the plurality of buffer holes 129. At this time, a large amount of excess air pressure can enter the air bag 1210 through the buffer holes 129, so that the air bag 1210 gradually expands, plays a secondary buffering role, effectively prevents the structure from being damaged due to the sudden increase of the pressure in the fixed groove 122. When the external air returns to the normal temperature, the low-viscosity silicone oil gradually cools and shrinks. The driving plate 123 moves upward and resets under the rebounding action of the driving spring 126, drives the connecting plate 125 to move upward, and the gas in the air bag 1210 is also discharged into the fixed groove 122 through the back pressure hole 1212. The buffer plate 128 returns to the original position under the elastic force of the buffer spring 1211 and covers the buffer holes 129, so as to ensure that the gas in the air bag 1210 flows back in order and avoid the pressure mutation.

[0050] The air circulation piece 13 comprises circulation filter plates 131 arranged on both sides of the outer frame 4 and the inner frame 3 respectively, four circulation filter plates 131 are located on the same plane, two transmission rods 132 are rotatably arranged at the bottom of the connecting plate 125 through pivots, the ends of the two transmission rods 132 away from the connecting plate 125 are rotatably arranged with baffle plates 133 through pivots, the two baffle plates 133 are hollow and used in cooperation with adjacent circulation filter plates 131, two limiting rods 134 are arranged in the outer frame 4 and penetrate through adjacent baffle plates 133 and are attached to the inner walls of the adjacent baffle plates 133, a plurality of rollers 135 are rotatably arranged at the bottom of the baffle plate 133 through pivots, limiting frames 136 are arranged between the inner walls of the outer frame 4 and the inner frame 3, and the plurality of rollers 135 are rotatably arranged in the corresponding limiting frames 136, the two transmission rods 132 are unfolded outwardly during the descending process of the connecting plate 125, so as to push the corresponding baffle plates 133 through the two transmission rods 132, the limiting rods 134 arranged on the outer frame 4 limit the sliding direction of the baffle plates 133, so as to ensure the stable movement of the baffle plates 133 in the horizontal direction, under the pushing of the transmission rods 132 and the limiting of the limiting rods 134, the baffle plates 133 are translated outwardly, and the rollers 135 rotatably arranged below the baffle plates 133 roll in the limiting frames 136, so as to reduce the frictional resistance and ensure the smooth movement of the baffle plates 133, when the two adjacent baffle plates 133 are far away from each other to be completely opened, the circulation filter plates 131 on the inner frame 3 and the outer frame 4 are completely exposed, and external air can smoothly enter the inner frame 3 through the circulation filter plates 131, so as to realize efficient ventilation and heat dissipation, and the four circulation filter plates 131 are located on the same plane, so as to ensure that the air flow can completely penetrate the entire inner frame 3, so that the air flow remains uniform and stable during the flow process, and the heat dissipation efficiency is effectively improved, after the external air returns to the normal temperature, the connecting plate 125 drives the two transmission rods 132 to be folded inwardly during the ascending process, so as to pull the baffle plates 133 on both sides to be synchronously retracted under the guidance of the limiting rods 134, and the baffle plates 133 are re-closed between the two circulation filter plates 131, during the closing process of the baffle plates 133, the rollers 135 reversely roll along the limiting frames 136, so as to ensure the smooth return without jamming, until the circulation filter plates 131 are completely covered, and the initial sealing state is restored, so as to effectively isolate the external dust and moisture, and ensure that the internal components are in a stable operating environment, and at the same time, the automatic opening and closing caused by the next temperature change is prepared, the entire process does not need manual intervention, realizes intelligent temperature control adjustment, and ensures long-term safe operation of the equipment.

[0051] Two drainage pieces 14 are arranged at the bottom of the outer frame 4, and are used for timely draining the condensed water accumulated in the outer frame 4 or the infiltrated rainwater.

[0052] The drain 14 comprises a drain pipe 141 arranged at the bottom of the outer frame 4, the drain pipe 141 is provided with a drain groove 142, and the bottom end of the drain pipe 141 is provided with an insect screen 143, the drain groove 142 is communicated with the flow-through groove 5, when the condensation slides along the inner wall of the outer frame 4 to the drain pipe 141, the condensation flows into the drain groove 142 arranged in the drain pipe 141, thereby guiding the condensation out of the outer frame 4 through the drain groove 142, avoiding the risk of corrosion or short circuit caused by water accumulation, the insect screen 143 in the drain groove 142 can effectively prevent insects or impurities from entering the drain groove 142 to cause blockage, ensuring that the drainage channel is always unobstructed; the insect screen 143 is made of corrosion-resistant metal material, which has good air permeability and protection performance, and is convenient for regular cleaning and maintenance, further improving the reliability and safety of equipment operation.

[0053] The heat-expanding liquid stored in the fixing groove 122 is low-viscosity silicone oil, which has stable thermal expansion coefficient and strong fluidity, can quickly respond to temperature changes, and can expand rapidly when the ambient temperature rises. It still has good insulation performance when applied in dangerous environments such as electrification, ensuring the safety and stability of the charging process and equipment operation, effectively avoiding the risk of short circuit caused by liquid leakage or insulation failure, and at the same time, the low-viscosity silicone oil is chemically stable during long-term use, not easy to volatilize, age or corrode the sealing structure, ensuring the durability and reliability of the temperature control response mechanism, ensuring that the entire automatic opening and closing system can still operate accurately after multiple cycles, prolonging the service life of the device.

[0054] In use, when the temperature of the external environment is high, the low-viscosity silicone oil stored in the fixed groove 122 expands under heat, causing the driving plate 123 to move downward under pressure and slide in the fixed groove 122. When the driving plate 123 moves downward, it pushes the driving rod 124 at the bottom of the driving plate 123 to move downward synchronously. At this time, the driving spring 126 starts to compress the force, and the driving rod 124 drives the connecting plate 125 to move downward during the descending process, causing the connecting plate 125 to slide in the flow-through groove 5. If the external temperature is too high, causing the driving plate 123 to contact the bottom of the fixed groove 122, as the low-viscosity silicone oil continues to expand, the pressure in the fixed groove 122 will continue to increase. At this time, the increased pressure will slowly enter the air bag 1210 through the back pressure hole 1212. If the back pressure hole 1212 cannot completely release the pressure, the air pressure in the fixed groove 122 will lift the buffer plate 128 upward, and the buffer spring 1211 will be compressed, thereby pushing the buffer plate 128 above the plurality of buffer holes 129. At this time, a large amount of excess air pressure can enter the air bag 1210 through the buffer hole 129, causing the air bag 1210 to gradually expand, playing a secondary buffering role, effectively preventing the sudden increase in pressure in the fixed groove 122 from causing structural damage. When the external air returns to normal temperature, the low-viscosity silicone oil gradually cools and shrinks, the driving plate 123 moves upward and resets under the rebound effect of the driving spring 126, driving the connecting plate 125 to rise, and the gas in the air bag 1210 also slowly flows into the fixed groove 122 through the back pressure hole 1212. The buffer plate 128 returns to its original position under the elastic force of the buffer spring 1211, covering the buffer hole 129, ensuring that the gas in the air bag 1210 flows back in an orderly manner, avoiding sudden pressure changes;

[0055] The connecting plate 125 pushes the two transmission rods 132 outward during the descending process, thereby pushing the corresponding baffle plates 133 through the two transmission rods 132, respectively. The limiting rod 134 arranged on the outer frame 4 limits the sliding direction of the baffle plate 133, ensuring that it moves stably in the horizontal direction. Under the pushing of the transmission rod 132 and the limitation of the limiting rod 134, the baffle plate 133 translates outward, and the roller 135 arranged below the baffle plate 133 rotates in the limiting frame 136, reducing the frictional resistance and ensuring smooth movement of the baffle plate 133. When two adjacent baffle plates 133 move away from each other to be completely opened, the flow filter plate 131 on the inner frame 3 and the outer frame 4 is completely exposed, and external air can smoothly enter the inner frame 3 through the flow filter plate 131, achieving efficient ventilation and heat dissipation. The four flow filter plates 131 are in the same plane, ensuring that the airflow can completely penetrate the entire inner frame 3, so that the airflow remains uniform and stable during the flow process, effectively improving the heat dissipation efficiency. After the external air returns to normal temperature, the connecting plate 125 drives the two transmission rods 132 to be folded inward during the ascending process, thereby pulling the baffle plates 133 on both sides to retract synchronously under the guidance of the limiting rod 134, and re-close between the two flow filter plates 131. During the closing process of the baffle plate 133, the roller 135 reversely rolls along the limiting frame 136, ensuring smooth and non-stuck return, until completely covering the flow filter plate 131, restoring the initial sealing state, thereby effectively isolating external dust and moisture, protecting the internal components in a stable operating environment, and preparing for the next automatic opening and closing caused by temperature change. The entire process does not require manual intervention, realizes intelligent temperature control adjustment, and ensures long-term safe operation of the equipment;

[0056] When the outside temperature is low and the heat inside the inner frame 3 is high, the temperature controller 107 installed in the inner frame 3 will detect the temperature change inside the inner frame 3 and send a signal to start the motor 104. After the motor 104 starts, it will drive the fan shaft 105 at its output end to rotate. The fan shaft 105 will then drive the fan blades 106 on its outer side to rotate synchronously. When the fan blades 106 rotate, they will push the airflow, drawing the cold air outside the fan cover 101 into the inner frame 3 through the filter holes 102. The filter holes 102 on the fan cover 101 effectively block dust and impurities, ensuring that the incoming air is clean. When the cold air enters the inner frame 3, it will first come into contact with the charging system 2 and quickly absorb the heat generated during the operation of the charging system 2. The generated heat, due to the fan blade 106 being located at the center of the frame door 6, causes the cold air, guided by the fan blade 106, to impact the charging system 2 and then split into two streams, forming a split airflow along the inner wall of the inner frame 3. This transports the heat within the inner frame 3 towards the guide plate 9. The inclined structure of the guide plate 9 allows the airflow to more easily enter the flow channel 5 between the inner frame 3 and the outer frame 4, causing the hot airflow within the inner frame 3 to move along the flow channel 5. When the hot airflow flows within the flow channel 5, it prevents condensation from forming between the inner and outer walls of the inner frame 3 due to excessive temperature difference, thus avoiding the risk of moisture damage or short circuits to the equipment within the inner frame 3. Since the entire flow channel 5 completely encloses the inner frame 3, the outer wall of the inner frame 3 and the inner wall of the outer frame 4... The air layer between them forms a continuous heat exchange channel. The outer wall of the inner frame 3 does not directly contact the outside cold air, effectively solving the problem of condensation on the inner wall of the inner frame 3 caused by sudden temperature changes. At the same time, the outer wall of the outer frame 4 is in direct contact with the cold air, while the inner wall of the outer frame 4 is in contact with the hot air discharged from the inner frame 3, causing condensation to form on the inner wall of the outer frame 4. The condensation on the inner wall of the outer frame 4 flows downwards and collects in the drain pipe 141 at the bottom of the outer frame 4. Before the condensation on the inner wall of the outer frame 4 completely flows into the drain pipe 141, it can absorb some heat during the evaporation process, further reducing the temperature gradient inside the outer frame 4, thereby accelerating the heat dissipation efficiency and stabilizing the temperature difference between the inside and outside. Hot air flows continuously and eventually exits through the guide pipe 111, which is connected to the circulation channel 5. The other end of the guide pipe 111 faces the top of the outer frame 4. The purpose of this is to prevent snow from accumulating on the top of the outer frame 4 during snowy weather, which would cause the top of the outer frame 4 to remain at a low temperature and thus affect the normal dissipation of internal heat. The shield 112 at one end of the guide pipe 111 can effectively prevent snowflakes and rainwater from directly entering the circulation channel 5, while allowing hot air to exit smoothly. The inclined design of the shield 112 allows snow to slide off naturally, avoiding accumulation and blockage, and ensuring that the heat dissipation channel is unobstructed all year round. When the wind is strong, the shield 112 can also form a local negative pressure, which enhances the suction effect of hot air in the circulation channel 5 and further improves the heat dissipation efficiency.

[0057] When the condensation slides along the inner wall of the outer frame 4 to the drain pipe 141, the condensation flows into the drain groove 142 in the drain pipe 141, thereby guiding the condensation out of the outer frame 4 through the drain groove 142, avoiding the risk of corrosion or short circuit caused by water accumulation. The insect screen 143 in the drain groove 142 can effectively prevent insects or impurities from entering the drain groove 142 and causing blockage, ensuring long-term smooth drainage. The insect screen 143 is made of corrosion-resistant metal material, with good air permeability and protection performance, and is easy to clean and maintain regularly, further improving the reliability and safety of equipment operation.

[0058] In addition, when the external temperature is high, the inner frame 3 and the outer frame 4 can only use the air in the flow-through groove 5 as a heat conduction medium, which can effectively slow down the reverse conduction of heat to the inner frame 3, avoiding performance degradation due to overheating, thereby maintaining the relative stability of the internal temperature of the inner frame 3 in a high-temperature environment, prolonging the service life of the equipment.

[0059] The overall heat dissipation design of the equipment also takes into account the operating stability in extreme weather, especially in environments with significant day-night temperature differences. The coordinated heat dissipation and condensation prevention design of the inner frame 3 and the outer frame 4 can always work stably, ensuring that the internal equipment can always maintain a dry and efficient heat dissipation state under extreme temperature differences, effectively prolonging the service life of the equipment and significantly reducing the failure rate, providing a reliable guarantee for the long-term stable operation of the equipment in complex climate environments.

[0060] It should be noted that in this text, 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 the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0061] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application.

Claims

1. A box-type retractable electric vehicle charging pile, comprising a bracket (1) and a charging system (2), characterized in that: It also includes: The inner frame (3) is located above the bracket (1) and is used to store the charging system (2). An outer frame (4) is provided on the outside of the inner frame (3). The outer frame (4) is located on the top of the bracket (1). A flow groove (5) is provided between the outer frame (4) and the inner frame (3). The flow groove (5) completely surrounds the inner frame (3) so that the gas in the inner frame (3) can communicate with the outside through the flow groove (5). The frame door (6) is rotatably mounted on one side of the outer frame (4) via a pivot, and the frame door (6) is a hollow structure; The low-temperature guiding component (7) is set on the outside of the outer frame (4) to guide cold air into the inner frame (3) in the low-temperature environment, and guide the high-temperature airflow inside the inner frame (3) to be discharged through the flow channel (5), thereby regulating the internal temperature of the inner frame (3) and preventing the external cold air from directly contacting the outer wall of the inner frame (3). The high-temperature emission component (8) is located on the outside of the outer frame (4) and is used to automatically discharge the hot air accumulated inside the inner frame (3) according to the ambient temperature in the high-temperature environment, drive the air inside the inner frame (3) to circulate with the outside air, and use the outside airflow to carry away the heat inside the inner frame (3).

2. The box-type retractable electric vehicle charging pile according to claim 1, characterized in that: The low-temperature guiding component (7) includes two guide plates (9) disposed between the inner frame (3) and the outer frame (4). A wind drive component (10) is provided on the frame door (6). The wind drive component (10) generates wind driving force to drive the external airflow into the inner frame (3). A guide component (11) is provided on the outside of the outer frame (4). The guide component (11) guides the high-temperature airflow in the inner frame (3) and drives the high-temperature airflow in the inner frame (3) to pass through the flow channel (5) and then discharge to the top of the outer frame (4).

3. The box-type retractable electric vehicle charging pile according to claim 2, characterized in that: The two guide plates (9) are symmetrically distributed, and the opposite sides of the two guide plates (9) are set on the side wall of the outer frame (4), with their opposite sides facing the inner frame (3). The opposite sides of the two guide plates (9) are set on the top and bottom of the inner frame (3) and maintain a symmetrical gap with the left and right sides of the inner frame (3). The side of the two guide plates (9) away from the outer frame (4) is inclined inward to form a flow channel, which guides the hot air inside the inner frame (3) to flow into the flow groove (5) along the flow channel.

4. The box-type retractable electric vehicle charging pile according to claim 2, characterized in that: The wind drive component (10) includes a wind drive cover (101) located at the center of the frame door (6). The wind drive cover (101) has multiple filter holes (102) at one end away from the inner frame (3). A wind drive frame (103) is provided inside the wind drive cover (101). A motor (104) is provided at one end of the wind drive cover (101) away from the inner frame (3). A wind drive shaft (105) is provided at the output end of the motor (104). The wind drive shaft (105) is rotatably located at the axis of the wind drive frame (103). A multiple fan blades (106) are provided at one end of the wind drive shaft (105) away from the motor (104). A temperature controller (107) is provided inside the inner frame (3) to cooperate with the motor (104).

5. The box-type retractable electric vehicle charging pile according to claim 4, characterized in that: The guide (11) includes a guide tube (111) disposed on the side of the outer frame (4) away from the frame door (6). The guide tube (111) is arc-shaped, and one end of it disposed on the outer frame (4) is connected to the flow groove (5), and the other end of it faces the top of the outer frame (4). A shield (112) is provided on the end of the guide tube (111) away from the outer frame (4).

6. The box-type retractable electric vehicle charging pile according to claim 1, characterized in that: The high-temperature emission component (8) includes high-temperature drive components (12) respectively disposed on the top two sides of the outer frame (4). The high-temperature drive components (12) automatically start and stop according to the change of the external temperature, driving the air inside the inner frame (3) to circulate with the outside air. An air circulation component (13) is disposed inside the outer frame (4). The air circulation component (13) cooperates with the high-temperature drive components (12) to automatically adjust the airflow exchange between the inside and outside of the inner frame (3) according to the ambient temperature.

7. The box-type retractable electric vehicle charging pile according to claim 6, characterized in that: The high-temperature driving component (12) includes a fixed plate (121) disposed on the top of the outer frame (4). A fixed groove (122) for storing a liquid that expands when heated is provided in the fixed plate (121). A driving plate (123) is slidably disposed in the fixed groove (122), and the liquid that expands when heated is located above the driving plate (123). A driving rod (124) is slidably disposed at the bottom of the driving plate (123), and the driving rod (124) slides in the fixed plate (121). A connecting plate (125) is provided at the bottom end of the driving rod (124), and the connecting plate (125) is slidably disposed in the flow groove (5). A driving spring (126) is provided on the outside of the driving rod (124), and the two ends of the driving spring (126) are respectively disposed at the bottom of the driving plate (123) and in the fixed plate (121). The top of the fixed plate (121) is provided with a pressure relief tube (127), which is connected to the fixed groove (122). A pressure relief plate (128) is slidably arranged inside the pressure relief tube (127). Multiple pressure relief holes (129) are opened on the outside of the pressure relief tube (127). An airbag (1210) is provided on the outside of the pressure relief tube (127) to cooperate with the multiple pressure relief holes (129). The distance between the multiple pressure relief holes (129) and the top of the pressure relief tube (127) is greater than the thickness of the pressure relief plate (128). A pressure relief spring (1211) is provided on the top of the pressure relief plate (128), and the top of the pressure relief spring (1211) is located inside the pressure relief tube (127). A back pressure hole (1212) is opened at the axis of both the pressure relief tube (127) and the pressure relief plate (128).

8. The box-type retractable electric vehicle charging pile according to claim 7, characterized in that: The air circulation component (13) includes four air circulation filter plates (131) respectively disposed on both sides of the outer frame (4) and the inner frame (3). All four air circulation filter plates (131) are located on the same plane. The bottom of the connecting plate (125) is provided with two transmission rods (132) rotatably disposed via a rotating shaft. The ends of the two transmission rods (132) away from the connecting plate (125) are provided with baffles (133) rotatably disposed via a rotating shaft. Both baffles (133) are hollow and are connected to the adjacent air circulation filter plates (131). 1) Used in conjunction, the outer frame (4) is provided with two limiting rods (134), and the two limiting rods (134) pass through the two adjacent baffles (133) respectively and are in contact with the bottom of the inner wall of the two adjacent baffles (133). The bottom of the baffle (133) is provided with multiple rollers (135) through a rotating shaft. Limit frames (136) are provided on both sides of the inner frame (3) and between the inner walls of the outer frame (4), and the multiple rollers (135) are rotatably arranged in the corresponding limit frames (136).

9. The box-type retractable electric vehicle charging pile according to claim 1, characterized in that: The bottom of the outer frame (4) is provided with two drainage components (14), which are used to promptly drain the condensate or rainwater that accumulates inside the outer frame (4). The drainage component (14) includes a drainage pipe (141) disposed at the bottom of the outer frame (4), a drainage groove (142) is provided inside the drainage pipe (141), and an insect-proof net (143) is provided at the bottom end of the drainage pipe (141). The drainage groove (142) is connected to the flow groove (5).

10. The box-type retractable electric vehicle charging pile according to claim 7, characterized in that: The liquid stored in the fixed tank (122) that expands when heated is low-viscosity silicone oil.

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