Automobile charging pile and method thereof

Abstract

The present invention relates to the technical field of charging piles and discloses a car charging pile and a method thereof, comprising a pile body, wherein at least four groups of fan modules are arranged on the side of the pile body, each group of fan modules comprises a spiral tube, an ash storage bin, a plurality of air holes, and a plurality of centrifugal holes, the ash storage bin is installed on the side wall of the pile body, and the interior of the ash storage bin is arranged in a circular shape. When the fan module is working, air enters the spiral tube through the air holes. Since the air holes are on the side of the spiral tube away from the center of the pile body and are evenly distributed, a spiral airflow is formed in the tube after the air enters the spiral tube. Under the action of the spiral airflow, impurities such as dust contained in the air will be affected by centrifugal force. At this time, the centrifugal holes come into play, and dust and other impurities are thrown out to the inside of the ash storage bin through the centrifugal holes under the action of centrifugal force, thereby realizing preliminary dust separation of the air entering the interior of the charging pile and reducing the influence of dust on the internal components of the charging pile.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to an automobile charging pile and a method thereof. Background Art

[0002] Car charging piles play a vital role in the electric vehicle industry chain. They are like a "bridge" connecting the power grid and electric vehicles, providing convenient and efficient charging services for electric vehicles. At the same time, their installation location is very flexible. They can be set up in public buildings, such as public buildings, shopping malls, and public parking lots, etc. They can also be placed in parking lots in residential areas or special charging stations. Specifically, the charging piles connect to the vehicle's charging interface to transmit electricity from the power grid to the battery to replenish the power, thereby ensuring the electricity needs of electric vehicles for daily use and long-distance travel.

[0003] In a Chinese patent with patent publication number CN118618080A, a heat dissipation device for a car charging pile is disclosed, including a charging pile body and an air cooling component, wherein a vent is provided on the side wall of the charging pile body, and the air cooling component includes a shell, an exhaust fan, a dustproof plate, a scraper and a first driving member, wherein the shell is arranged at the vent, the exhaust fan is arranged on the shell for drawing air from the outside into the shell, the dustproof plate is arranged on the shell, the scraper is slidably fitted on the dustproof plate and can move along it, and the first driving member is arranged on the shell for driving the scraper to move; by providing structures such as scrapers, impurities attached to the dustproof plate can be scraped off, the dustproof plate can be automatically cleaned, and the dustproof plate can be prevented from being blocked, and the dustproof plate does not need to be removed during the cleaning process to prevent the generation of dust.

[0004] However, the equipment and prior art in the cited documents still have the following defects when used in practice:

[0005] 1. The cited document adopts a design of starting the first driving member to drive the dustproof plate to rotate, so that the water outlet is opened, and the water in the sump is allowed to fall onto the dustproof plate under the action of gravity. At the same time, the scraper is driven to scrape the surface of the dustproof plate during its rotation. Although the cleaning function of the dustproof plate is realized to a certain extent, it is unreasonable to add an additional driving source to realize the rotation of the dustproof plate in the limited internal space of the charging pile. First of all, the driving source itself needs to occupy a certain space, which is a severe challenge for the charging pile with a compact space layout. Various electrical components, heat dissipation components and control modules need to be reasonably arranged inside the charging pile. The additional driving source will make the internal space more crowded, increase the difficulty of equipment layout, and even affect the normal operation of other key components.

[0006] Secondly, the charging pile itself will generate a lot of heat during operation due to processes such as power conversion, and a heat dissipation device is needed to maintain a suitable operating temperature. The heat generated by the newly added driving source will further increase the heat load inside the charging pile, making the burden on the heat dissipation system heavier. If this extra heat cannot be dissipated in a timely and effective manner, it may cause the internal temperature of the charging pile to be too high, affecting the performance and life of electrical components, and even causing safety hazards.

[0007] Thirdly, in order to realize the rotation of the dust shield, it is necessary to make major changes to the internal structure of the charging pile and abandon the previously used internal pile design. The interior of the charging pile is filled with various module units. The layout and connection of these module units are carefully designed and optimized to ensure the stable operation of the charging pile. However, the rotation requirement of the dust shield conflicts with the existing module layout, so it is necessary to readjust the position of the module or change the connection method. This change not only increases the design and production costs, but also introduces new reliability problems. For example, the chaotic wiring between modules leads to signal interference, and the loose fixation between modules leads to vibration.

[0008] Finally, using water to clean the dustproof plate will cause the humidity inside the charging pile to increase. The evaporation of water will increase the humidity of the surrounding environment. The interior of the charging pile is an environment sensitive to humidity. Excessive humidity will form water droplets or water film on the surface of electrical components, reducing the electrical insulation performance. When the insulation performance drops to a certain level, it is easy to cause a short circuit fault. The short circuit fault will not only damage the electrical components, but also cause serious safety accidents such as fire. In addition, the increase in humidity will accelerate the corrosion of metal parts, further affecting the service life and reliability of the charging pile.

[0009] 2. This patent adopts a conventional fan structure and sets it on both sides, so that the airflow flows through a fixed path, thereby forming a clear airflow channel. Although this design can achieve the heat dissipation function to a certain extent, setting the fans on both sides will cause the air to not evenly cover the entire internal space of the charging pile. Under this design, the airflow mainly flows along a fixed path, forming a relatively obvious airflow channel. When the fan is started, most of the air will flow rapidly along these established channels, and it is difficult to diffuse to every corner inside the charging pile.

[0010] From the perspective of fluid mechanics, this fixed-path airflow pattern is similar to the laminar flow phenomenon in a pipe. The air presents a relatively regular flow state in the channel, and it is difficult to generate sufficient turbulence to achieve sufficient heat exchange with various components. Since the distribution of electrical components and modules inside the charging pile is relatively complex, the heating conditions in different areas are also different. Some areas with more severe heating may be located in places that are difficult for airflow to reach. For example, some key power modules may not be able to obtain sufficient cold air cooling due to their location, resulting in local excessive temperatures. If they are in this uneven heat dissipation environment for a long time, these areas with severe heating will accelerate the aging of electrical components, reduce their service life, and may even trigger overheating protection, affecting the normal operation of the charging pile.

[0011] Secondly, since the airflow is mainly concentrated in fixed channels, there will inevitably be some areas inside the charging pile that are difficult for air to reach. These areas form heat dissipation dead spots. During actual operation, the heat in these dead spots cannot be removed in time and will gradually accumulate, causing the local temperature to continue to rise. From the principle of heat conduction, heat is always transferred from high-temperature areas to low-temperature areas. In the presence of heat dissipation dead spots, the high temperature in the dead spots will be transferred to the surrounding areas, further expanding the range of temperature unevenness. This will not only affect the normal operation of surrounding electrical components, but may also trigger a series of chain reactions. For example, high temperature may cause the performance of nearby insulation materials to degrade, increasing the risk of leakage. For some temperature-sensitive electronic components, excessively high temperatures may cause their parameters to shift, affecting the charging accuracy and efficiency of the charging pile.

[0012] In addition, the existence of heat dissipation dead corners will also reduce the efficiency of the entire heat dissipation system, because the existence of local high-temperature areas will increase the overall average temperature. In order to maintain a safe temperature range, the heat dissipation system needs to consume more energy to dissipate heat, increasing energy consumption and operating costs. At the same time, this uneven temperature distribution also brings difficulties to the control of the heat dissipation system, and it is difficult to achieve precise control of the internal temperature of the entire charging pile through simple control strategies.

[0013] To this end, the present invention provides a car charging pile and a method thereof. Summary of the Invention

[0014] The object of the present invention is to provide a car charging station and method thereof to solve the problems raised in the above background technology.

[0015] To achieve the above objectives, the present invention provides the following technical solutions: a car charging pile, comprising a pile body, at least four groups of fan modules are arranged on the side of the pile body, each group of the fan modules includes a spiral tube, an ash storage bin, a plurality of air holes, and a plurality of centrifugal holes;

[0016] The ash storage bin is installed on the side wall of the pile body, and the interior of the ash storage bin is arranged in a circular shape;

[0017] The spiral tube is fixedly connected to the interior of the pile body, and passes through the interior of the ash storage bin;

[0018] The plurality of air holes are equidistantly arranged on a side of the spiral tube away from the center of the pile body;

[0019] The plurality of centrifugal holes are equidistantly arranged on a side of the spiral tube away from the air hole.

[0020] Preferably, an ash lowering pipe is installed at the rear of the pile body, and the ash lowering pipe is communicated with the bottom of the ash storage bin.

[0021] Preferably, the side of the spiral tube close to the center of the pile body gradually shrinks.

[0022] Preferably, the air holes are all elliptical, the centrifugal holes are all trumpet-shaped, and the angles between them and the tangent direction of the outer edge of the spiral tube are acute angles.

[0023] Preferably, the trumpet-shaped long side of the centrifugal hole is away from the interior of the spiral tube, while the short side thereof is close to the interior of the spiral tube, and the angle between the centrifugal hole and the tangent direction of the outer edge of the spiral tube is sixty degrees.

[0024] Preferably, the outlet direction of the lower ash pipe is set downward.

[0025] Preferably, at least four sets of fan modules are installed inside the pile body, and the fan modules at least include a rotating shaft, a shell and fan blades. A composite wind direction component is provided inside each fan module, and the composite wind direction component includes a limit groove, a movement groove and a plurality of movable blades.

[0026] The limiting grooves are arranged in an annular manner with equal distances and are opened on the surface of the rotating shaft. The moving grooves are obliquely opened on the inner surface of the shell. The moving blades are slidably connected to the limiting grooves and the moving grooves.

[0027] Preferably, the movable blade is arranged between every two fan blades, the outer surface of the movable blade is provided with an arc-shaped protrusion adapted to the shape of the limiting groove, and the outer surface of the movable blade is provided with a rod-shaped protrusion adapted to the shape of the motion groove.

[0028] Preferably, the fan modules on both sides are started at the same time, but the rotation directions are different, that is, one fan module is used to provide air intake, and the other fan module is used to provide air outlet.

[0029] Preferably, a charging gun is installed on the outside of the pile body.

[0030] The vehicle charging method comprises the following steps:

[0031] Step 1: Before using the car charging station, check whether the appearance of the station is damaged, whether the connections of all components are firm, and ensure that the fan module, ash pipe and other components are in normal condition;

[0032] Step 2: Connect the charging port of the electric vehicle to the corresponding port of the charging gun on the charging pile correctly, and ensure the connection is firm;

[0033] Step 3: Turn on the charging function of the charging pile and start charging the electric vehicle. At this time, the circuit inside the pile starts working and the electric energy is transmitted to the vehicle battery through the charging line;

[0034] Step 4: At the same time, the fan module inside the pile body starts working, generating airflow and forcibly cooling the charging module to ensure that the equipment operates within a safe temperature range;

[0035] Step 5: During the forced air cooling process, dust particles in the air will be separated and collected by the centrifugal dust removal component due to the centrifugal force;

[0036] Step 6: When the electric vehicle is fully charged, turn off the charging function of the charging pile first, then remove the charging gun of the vehicle and put it back on the pile.

[0037] Preferably, in step 4: the safe temperature range is greater than 20 degrees Celsius and not higher than 50 degrees Celsius.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. When the fan module is working, air enters the spiral tube through the air holes. Since the air holes are located on the side of the spiral tube away from the center of the pile and are evenly distributed, a spiral airflow is formed inside the tube after the air enters the spiral tube. Under the action of the spiral airflow, dust and other impurities in the air will be affected by centrifugal force. At this time, the centrifugal holes come into play, and dust and other impurities are thrown out into the dust storage bin through the centrifugal holes under the action of centrifugal force, thereby achieving preliminary dust separation of the air entering the charging pile and reducing the impact of dust on the internal components of the charging pile.

[0040] Compared with the existing technology of starting the first driving member to drive the dustproof plate to rotate and using water to clean the dustproof plate, the present invention has obvious advantages. First, the present invention does not require an additional driving source to achieve dust separation and cleaning, avoiding the problem of congestion in the internal space of the charging pile caused by the additional driving source occupying space, reducing the difficulty of equipment layout, and will not affect the normal operation of other key components. Secondly, the present invention realizes dust separation and discharge through the spiral flow and centrifugal force of air, with better cleaning effect, and will not cause the humidity inside the charging pile to increase due to the use of water cleaning like the existing technology, thereby avoiding a series of problems caused by humidity problems such as degradation of electrical insulation performance, short circuit failure and corrosion of metal parts, and improving the service life and reliability of the charging pile.

[0041] Among them: since the dust enters the ash storage bin based on centrifugal force, after entering the ash storage bin, the dust still retains some centrifugal force for rotation, and the interior of the ash storage bin is set to be circular. Under the action of the circumference, this part of the dust with centrifugal force will slide along the circumferential direction to the bottom of the ash storage bin, and finally the dust will be discharged to the outside of the pile body through the ash lower pipe, thereby avoiding the accumulation of dust inside the pile body, which is conducive to maintaining a clean environment inside the charging pile.

[0042] The ash pipe outlet is downward-facing and located at the rear of the charging pile. This design offers multiple benefits. First, dust on both sides of the charging pile can be collected and discharged uniformly through the ash storage bin and ash pipe, making dust cleaning more centralized and efficient. Second, because the ash pipe outlet is downward-facing, external dust is less likely to enter the pipe, effectively preventing secondary intrusion of external dust and further ensuring the cleanliness of the charging pile.

[0043] Among them: the setting of the air holes enables air to enter the spiral tube evenly, ensuring the stability and continuity of the spiral airflow, which is conducive to improving the dust separation effect. Compared with circular or other shaped air holes, the long axis direction of the elliptical air holes can guide the air to enter the spiral tube more smoothly, reducing the resistance when the air enters. At the same time, it can also increase the air intake volume to a certain extent, improve the overall ventilation efficiency, make the spiral airflow in the spiral tube more stable and strong, thereby enhancing the dust separation ability.

[0044] Among them: the trumpet-shaped centrifugal hole has its long side away from the inside of the spiral tube and its short side close to the inside of the spiral tube, so that the dust can be more easily thrown out into the ash storage bin through the centrifugal hole under the action of centrifugal force, and the design of forming an acute angle with the tangential direction of the outer edge of the spiral tube is in line with the movement direction of the dust under the action of centrifugal force in the spiral airflow, and can more accurately guide the dust to be discharged from the centrifugal hole, thereby improving the efficiency and accuracy of dust separation and reducing the residual dust in the spiral tube.

[0045] The spiral tube gradually contracts near the center of the pile, narrowing the airflow channel inside the tube. According to the principles of fluid mechanics, while maintaining a constant flow rate, this narrowing channel increases airflow velocity, thereby enhancing the centrifugal force of the air as it spins within the spiral tube. This stronger centrifugal force more effectively separates impurities like dust from the airflow, further enhancing dust separation.

[0046] In addition to separating dust, the spiral airflow can fully contact the inner wall of the spiral tube during its flow in the spiral tube, thereby taking away some heat and playing a role in assisting heat dissipation. This has a certain alleviating effect on the situation where a large amount of heat is generated inside the charging pile due to processes such as power conversion, and helps maintain a suitable operating temperature inside the charging pile, ensuring the performance and life of electrical components.

[0047] 2. When the fan module is running, the moving blades form a compound motion of rotation and movement under the joint action of the limit groove and the motion groove, and generate fluid vortexes. The fluid vortexes can break the laminar flow state formed by the traditional fixed-path airflow, so that the air forms a more complex and turbulent flow pattern inside the charging pile. This turbulent airflow can be more effectively diffused to every corner inside the charging pile, avoiding areas that are difficult for air to reach, thereby solving the problem that the airflow in the traditional design cannot evenly cover the entire internal space of the charging pile.

[0048] Secondly, the presence of fluid vortices enhances the heat exchange efficiency between the air and the various components inside the charging pile. The vortex motion makes the contact between the air and the surface of the electrical components more sufficient and frequent, which can take away heat more quickly. Even areas with severe heat generation in complex layouts can be effectively cooled. For example, key power modules that originally had difficulty obtaining sufficient cold air cooling due to their location can now have full contact with cold air under the action of the fluid vortex, avoiding local excessive temperatures, thereby slowing down the aging of electrical components, extending their service life, and reducing the risk of failures caused by overheating.

[0049] Among them: Compared with traditional heat dissipation designs in the past, under the same energy consumption, the effect formed by the present invention is more significant. In traditional designs, since the air flow mainly flows along fixed channels, there are heat dissipation dead corners, which lead to local excessive temperatures. This not only affects the performance and life of electrical components, but also reduces the overall efficiency of the heat dissipation system, requiring more energy to maintain a safe temperature range.

[0050] In the present invention, the fluid vortex generated by the composite wind direction component enables the air to be evenly distributed inside the charging pile, eliminating heat dissipation dead corners. Under the same energy consumption, the fluid vortex can more fully utilize the flow of air to carry away heat, achieving a more efficient heat dissipation effect. This means that the efficiency of the entire heat dissipation system has been significantly improved, and the temperature inside the charging pile can be maintained stable without additional energy consumption. At the same time, this uniform temperature distribution also makes the control of the heat dissipation system simpler and more precise, and can achieve effective regulation of the internal temperature of the entire charging pile through a relatively simple control strategy, further improving the operating stability and reliability of the charging pile and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a front perspective schematic diagram of the main structure of the present invention;

[0052] Figure 2 It is a rear perspective schematic diagram of the main structure of the present invention;

[0053] Figure 3 It is a schematic sectional perspective view of the main structure of the present invention;

[0054] Figure 4 It is a three-dimensional schematic diagram of the spiral tube of the present invention;

[0055] Figure 5 This is a schematic sectional perspective view of the ash storage bin of the present invention;

[0056] Figure 6 This is a three-dimensional schematic diagram of the fan module of the present invention;

[0057] Figure 7 This is a three-dimensional schematic diagram of the composite wind direction assembly of the present invention;

[0058] Figure 8 It is a three-dimensional schematic diagram of the moving blade of the present invention.

[0059] In the picture:

[0060] 11. Pile body;

[0061] 2. Centrifugal ash removal assembly; 21. Spiral tube; 22. Ash storage bin; 23. Air hole; 24. Centrifugal hole; 25. Ash discharge pipe;

[0062] 3. Fan module;

[0063] 4. Composite wind direction assembly; 41. Limiting slot; 42. Movement slot; 43. Moving blade. DETAILED DESCRIPTION

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0065] It should be noted that the charging gun only provides the function of transmitting current for the car, and the fan module 3 only provides the function of airflow for the pile body 11. At the same time, the working principles and specific structures of the charging gun and the fan module 3 are both existing technologies. Therefore, in view of the versatility of the above structure, its specific principles will not be repeated later.

[0066] Example 1, please refer to Figures 1 to 5 As shown, a car charging pile includes a pile body 11, and at least four groups of fan modules 3 are arranged on the side of the pile body 11. Each group of fan modules 3 includes a spiral tube 21, an ash storage bin 22, a plurality of air holes 23, and a plurality of centrifugal holes 24;

[0067] The ash storage bin 22 is mounted on the side wall of the pile body 11, and the interior of the ash storage bin 22 is configured to be circular;

[0068] The spiral tube 21 is fixedly connected to the interior of the pile body 11 and passes through the interior of the ash storage bin 22;

[0069] A plurality of air holes 23 are equidistantly provided on a side of the spiral tube 21 away from the center of the pile body 11;

[0070] A plurality of centrifugal holes 24 are equidistantly formed on a side of the spiral tube 21 away from the air hole 23 .

[0071] Please refer to Figure 1 and Figure 2 As shown, an ash lowering pipe 25 is installed at the rear of the pile body 11 , and the ash lowering pipe 25 is communicated with the bottom of the ash storage bin 22 .

[0072] It should be noted that the side of the spiral tube 21 close to the center of the pile body 11 gradually shrinks, the air holes 23 are all elliptical, the centrifugal holes 24 are all trumpet-shaped, and the angle between them and the tangential direction of the outer edge of the spiral tube 21 is an acute angle, the long side of the trumpet-shaped centrifugal hole 24 is away from the interior of the spiral tube 21, and its short side is close to the interior of the spiral tube 21. At the same time, the angle between the centrifugal hole 24 and the tangential direction of the outer edge of the spiral tube 21 is sixty degrees, and the outlet direction of the lower ash pipe 25 is set downward. At least four sets of fan modules 3 are installed inside the pile body 11. The fan module 3 includes at least a rotating shaft, a casing and fan blades. The fan modules 3 on both sides are started at the same time, but the rotation directions of the two are different, that is, one fan module 3 is for providing air intake, and the other fan module 3 is for providing air outlet. A charging gun is installed on the outside of the pile body 11.

[0073] Specifically, during the actual operation of the car charging pile, as the pile body 11 is continuously used, the electrical components inside it will gradually heat up due to processes such as power conversion. When the temperature inside the pile body 11 rises to a certain level, in order to ensure the normal operation of each electrical component, it is necessary to start the fan module 3 for heat dissipation.

[0074] After the fan module 3 is started, the airflow it generates will attract dust and other impurities in the environment into the pile body 11. At this time, the air will first enter the interior of the spiral tube 21 through the air holes 23 on the surface of the spiral tube 21. Since the air holes 23 are elliptical, the long axis direction of the ellipse can guide the air to enter the spiral tube 21 more smoothly. Compared with the circular air holes 23, it can reduce the resistance when the air enters, and at the same time increase the air intake to a certain extent, thereby improving the overall ventilation efficiency and laying the foundation for the subsequent formation of a stable spiral airflow.

[0075] After the air enters the spiral tube 21, since the air holes 23 are evenly distributed on the side of the spiral tube 21 away from the center of the pile body 11, the air will flow along the shape of the spiral tube 21 in the spiral tube 21, thereby forming a spiral gas. At the same time, the side of the spiral tube 21 close to the center of the pile body 11 gradually shrinks. According to the principles of fluid mechanics, when the flow rate remains unchanged, the narrowing of the channel will cause the air flow speed to accelerate. As the air flow speed increases, the centrifugal force exerted on the air when rotating in the spiral tube 21 will also increase accordingly.

[0076] Under the action of centrifugal force, impurities such as dust contained in the air will be thrown to the outside of the spiral tube 21 because their mass is smaller than the mass of the air. Since the centrifugal hole 24 is designed to be trumpet-shaped, and the angle between it and the tangential direction of the outer edge of the spiral tube 21 is an acute angle of sixty degrees, the dust is more easily thrown out of the dust storage bin 22 through the centrifugal hole 24 under the action of centrifugal force. The design of forming an acute angle with the tangential direction of the outer edge of the spiral tube 21 is in line with the movement direction of the dust under the action of centrifugal force in the spiral airflow, and can more accurately guide the dust to be discharged from the centrifugal hole 24, thereby improving the efficiency and accuracy of dust separation and reducing the residual dust in the spiral tube 21.

[0077] After dust and other impurities are discharged into the ash storage bin 22 through the centrifugal holes 24, since these dust and impurities are in a spiral motion state before entering the ash storage bin 22, they themselves still have certain spiral characteristics and residual centrifugal force. The interior of the ash storage bin 22 is set to be circular. Under the action of the circumference, the dust with residual centrifugal force will slide along the circumferential direction to the bottom of the ash storage bin 22.

[0078] Finally, the dust that slides down to the bottom of the ash storage bin 22 will smoothly enter the interior of the ash lowering pipe 25 and be discharged from the interior of the equipment through the ash lowering pipe 25.

[0079] In addition, the outlet direction of the lower ash pipe 25 is set downward. On the one hand, the downward opening can prevent external dust from contaminating the outlet and prevent external dust from entering the lower ash pipe 25, thereby effectively preventing the secondary invasion of external dust; on the other hand, it can also prevent the backflow of discharged dust, ensure that the dust can be smoothly discharged from the outside of the pile body 11, and maintain a clean environment inside the charging pile.

[0080] During the entire heat dissipation process, the fan modules 3 on both sides are started at the same time, but the two rotate in different directions, that is, one fan module 3 is for providing air intake, and the other fan module 3 is for providing air outlet. This design can form an effective airflow circulation inside the pile body 11, so that the air treated by the spiral tube 21 can continuously flow inside the pile body 11, taking away more heat and achieving a continuous heat dissipation effect. In this way, air continuously enters the spiral tube 21 through the air hole 23, and the dust is separated and discharged. The treated air circulates inside the pile body 11 to take away the heat, and then this process is continuously circulated, completing the entire heat dissipation process, effectively maintaining the temperature stability inside the charging pile, and ensuring the normal operation of the charging pile.

[0081] Example 2: Based on Example 1, please refer to Figures 6 to 8 As shown, a composite wind direction assembly 4 is provided inside each fan module 3. The composite wind direction assembly 4 includes a limiting slot 41, a movement slot 42 and a plurality of moving blades 43.

[0082] The limiting grooves 41 are arranged in an annular manner and are equidistantly opened on the surface of the rotating shaft. The moving grooves 42 are obliquely opened on the inner surface of the shell. The moving blades 43 are slidably connected to the limiting grooves 41 and the moving grooves 42.

[0083] It should be noted that the moving blade 43 is arranged between every two fan blades, and the outer surface of the moving blade 43 is provided with an arc-shaped protrusion that is adapted to the shape of the limiting groove 41, and the outer surface of the moving blade 43 is provided with a rod-shaped protrusion that is adapted to the shape of the moving groove 42.

[0084] Specifically, during the operation of the car charging pile in Example 1, when the fan module 3 is started, its shaft begins to rotate and drives the fan blades to rotate. Since the moving blades 43 are arranged between every two fan blades and are connected to the shaft, the moving blades 43 will also rotate synchronously with the shaft.

[0085] During the rotation process, the moving blade 43 is restricted by the limiting groove 41 and the motion groove 42. Specifically, the arc-shaped protrusion on the outer surface of the moving blade 43 is adapted to the shape of the limiting groove 41, so that when the moving blade 43 rotates with the rotating shaft, the arc-shaped protrusion moves along the limiting groove 41, thereby ensuring the rotation of the moving blade 43 in the circumferential direction. At the same time, the rod-shaped protrusion on the outer surface of the moving blade 43 is adapted to the shape of the motion groove 42, and the motion groove 42 is tilted on the inner surface of the outer shell. When the moving blade 43 rotates, the rod-shaped protrusion slides in the motion groove 42. Due to the tilted setting of the motion groove 42, the sliding of the rod-shaped protrusion in the motion groove 42 will cause the moving blade 43 to move back and forth in the radial direction.

[0086] When the shaft drives the moving blade 43 to rotate, the shaft drives the moving blade 43 in the circumferential direction, causing it to move in a circular motion around the shaft. In the radial direction, as the rod-shaped protrusion slides within the inclined motion groove 42, the motion groove 42 generates a groove-directed reaction force on the rod-shaped protrusion. This reaction force can be decomposed into radial and circumferential force components, with the radial force component causing the moving blade 43 to reciprocate in the radial direction. This combination of circumferential rotation and radial reciprocating motion creates a unique composite motion pattern for the moving blade 43.

[0087] When the moving blades 43 perform compound motions, the force exerted on the surrounding air is no longer in a single direction, but changes continuously in multiple directions. This makes the flow of air inside the pile body 11 more complex and turbulent, disrupting the originally relatively regular airflow, thereby forming a fluid vortex.

[0088] The generation of fluid vortex plays a vital role in the heat dissipation of the pile body 11. On the one hand, the fluid vortex can make the air more evenly distributed inside the pile body 11. In Example 1, although the spiral tube 21 and other structures can achieve a certain degree of heat dissipation and dust separation, there may still be local uneven heat dissipation. The presence of fluid vortex can bring air to every corner of the pile body 11, avoiding the occurrence of heat dissipation dead corners, so that the electrical components in each part can be fully cooled, thereby improving the uniformity of heat dissipation.

[0089] On the other hand, the fluid vortex enhances the heat exchange efficiency between the air and the electrical components. The turbulent airflow can more frequently contact the surface of the electrical components, removing more heat and further improving the heat dissipation effect, thereby better maintaining the temperature stability inside the charging pile body 11 and ensuring the normal operation of the charging pile.

[0090] Embodiment 3, a vehicle charging method, comprising the following steps:

[0091] Step 1: Before using the car charging pile, check whether the pile body 11 is damaged, whether the components are firmly connected, and ensure that the fan module 3, the ash pipe 25 and other components are in normal condition;

[0092] Step 2: Connect the charging port of the electric vehicle to the corresponding port of the charging gun on the charging pile correctly, and ensure the connection is firm;

[0093] Step 3: Turn on the charging function of the charging pile and start charging the electric vehicle. At this time, the circuit inside the pile body 11 starts working and the electric energy is transmitted to the vehicle battery through the charging line;

[0094] Step 4: At the same time, the fan module 3 inside the pile body 11 starts working, generating airflow and forcibly cooling the charging module to ensure that the device operates within a safe temperature range;

[0095] Step 5: During the forced air cooling process, dust particles in the air are separated and collected by the centrifugal dust removal component 2 due to the centrifugal force;

[0096] Step 6: When the electric vehicle is fully charged, first turn off the charging function of the charging pile, then remove the charging gun of the vehicle and put it back on the pile body 11.

[0097] In step 4: The safe temperature range is greater than -20 degrees Celsius and not higher than 50 degrees Celsius.

[0098] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0099] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A car charging pile, comprising a pile body (11), characterized in that: At least four groups of fan modules (3) are arranged on the side of the pile body (11), and each group of the fan modules (3) includes a spiral tube (21), an ash storage bin (22), a plurality of air holes (23), and a plurality of centrifugal holes (24); The ash storage bin (22) is installed on the side wall of the pile body (11), and the interior of the ash storage bin (22) is configured to be circular; The spiral tube (21) is fixedly connected to the interior of the pile body (11), and the spiral tube (21) passes through the interior of the ash storage bin (22); The plurality of air holes (23) are equidistantly arranged on a side of the spiral tube (21) away from the center of the pile body (11); The plurality of centrifugal holes (24) are equidistantly arranged on a side of the spiral tube (21) away from the air hole (23); An ash lowering pipe (25) is installed behind the pile body (11), and the ash lowering pipe (25) is communicated with the bottom of the ash storage bin (22); The spiral tube (21) gradually shrinks on one side close to the center of the pile body (11); At least four sets of fan modules (3) are installed inside the pile body (11), and the fan modules (3) at least include a rotating shaft, a housing, and fan blades. A composite wind direction assembly (4) is provided inside each of the fan modules (3), and each of the composite wind direction assemblies (4) includes a limiting groove (41), a moving groove (42), and a plurality of moving blades (43); The limiting grooves (41) are arranged in an annular manner and are equidistantly opened on the surface of the rotating shaft, the moving grooves (42) are obliquely opened on the inner surface of the shell, and the moving blades (43) are slidably connected to the inside of the limiting grooves (41) and the moving grooves (42); The movable blade (43) is arranged between every two fan blades, and the outer surface of the movable blade (43) is provided with an arc-shaped protrusion that matches the shape of the limiting groove (41), and the outer surface of the movable blade (43) is provided with a rod-shaped protrusion that matches the shape of the movement groove (42).

2. The vehicle charging pile according to claim 1, characterized in that: The air holes (23) are all elliptical, and the centrifugal holes (24) are all trumpet-shaped, and the angle between them and the tangent direction of the outer edge of the spiral tube (21) is an acute angle.

3. The vehicle charging pile according to claim 2, characterized in that: The trumpet-shaped long side of the centrifugal hole (24) is away from the interior of the spiral tube (21), while the short side thereof is close to the interior of the spiral tube (21), and the angle between the centrifugal hole (24) and the tangent direction of the outer edge of the spiral tube (21) is sixty degrees.

4. The vehicle charging pile according to claim 1, characterized in that: The outlet direction of the lower ash pipe (25) is set downward.

5. A vehicle charging method, applied to a vehicle charging pile according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: Before using the car charging pile, check whether the pile body (11) is damaged, whether the connections of the components are firm, and ensure that the fan module (3), the ash pipe (25) and other components are in normal condition; Step 2: Connect the charging port of the electric vehicle to the corresponding port of the charging gun on the charging pile correctly, and ensure the connection is firm; Step 3: Turn on the charging function of the charging pile and start charging the electric vehicle. At this time, the circuit inside the pile body (11) starts to work, and the electric energy is transmitted to the vehicle battery through the charging line; Step 4: At the same time, the fan module (3) inside the pile body (11) starts to work, and the fan module (3) generates airflow and performs forced air cooling on the charging module to ensure that the device operates within a safe temperature range; Step 5: During the forced air cooling process, dust particles in the air will be separated and collected by the centrifugal dust removal component (2) due to the centrifugal force; Step 6: When the electric vehicle is fully charged, first turn off the charging function of the charging pile, then remove the charging gun of the vehicle and put it back on the pile body (11).

6. The vehicle charging method according to claim 5, characterized in that: In step 4: the safe temperature range is greater than -20 degrees Celsius and not higher than 50 degrees Celsius.

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