Automobile charging pile and method thereof

Abstract

The invention relates to the technical field of charging piles, and discloses an automobile charging pile and a method thereof.The automobile charging pile comprises a pile body, at least four sets of fan modules are arranged on the side of the pile body, each set of fan module comprises a spiral pipe, an ash storage bin, a plurality of air holes and a plurality of centrifugal holes, and the ash storage bin is installed on the side wall of the pile body; when the fan module works, air enters the spiral pipe through the air holes, the air holes are formed in the side, away from the center of the pile body, of the spiral pipe and are distributed at equal intervals, so that spiral airflow is formed in the spiral pipe after the air enters the spiral pipe, and under the action of the spiral airflow, dust in the spiral pipe can be removed. When the air enters the charging pile, dust and other impurities mixed in the air can be influenced by centrifugal force, at the moment, the centrifugal holes play a role, and the dust and other impurities are thrown into the dust storage bin through the centrifugal holes under the action of the centrifugal force, so that primary dust separation of the air entering the charging pile is achieved, and the influence of dust on internal elements of the charging pile is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a car 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 a scraper, impurities attached to the dustproof plate can be scraped off, automatic cleaning of the dustproof plate can be achieved, and clogging of the dustproof plate can be prevented, and the dustproof plate does not need to be removed during the cleaning process to prevent dust from being generated.

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

[0005] 1. The referenced 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 falls on 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 drive source will further increase the heat load inside the charging pile, increasing the burden on the heat dissipation system. If this extra heat cannot be dissipated in a timely and effective manner, the internal temperature of the charging pile may 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 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, chaotic wiring between modules leads to signal interference, and 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 water will increase the humidity of the surrounding environment during evaporation. The inside of the charging pile is an environment that is 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 failure. Short circuit failures will not only damage electrical components, but also cause serious safety accidents such as fires. In addition, increased 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 quickly 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 is similar to the laminar flow in a pipe. The air flows in a relatively regular manner in the channel, and it is difficult to generate sufficient turbulence to achieve sufficient heat exchange with each component. Since the electrical components and modules inside the charging pile are distributed in a complex manner, the heating conditions in different areas are also different. Some areas with 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 get enough cold air to cool them due to their location, resulting in excessive local 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 corners. In actual operation, the heat in these dead corners cannot be taken away 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 case of heat dissipation dead corners, the high temperature in the dead corner area will be transferred to the surrounding area, further expanding the range of uneven temperature. 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 insulating materials to deteriorate and increase 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 pile and a method thereof to solve the problems raised in the above background technology.

[0015] To achieve the above object, 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 comprises 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 the spiral tube passes through the interior of the ash storage bin;

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

[0019] A 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 behind 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 angle between them and the tangent direction of the outer edge of the spiral tube is an acute angle.

[0023] Preferably, the trumpet-shaped long side of the centrifugal hole is far 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 arranged 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 housing and fan blades. Composite wind direction components are arranged inside the fan modules, and the composite wind direction components include a limit groove, a movement groove and a plurality of moving blades.

[0026] The limiting grooves are arranged in an annular manner and are equidistantly arranged on the surface of the rotating shaft, the moving grooves are obliquely opened on the inner surface of the shell, and 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, and 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 moving 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 outside the pile body.

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

[0031] Step 1: Before using the car charging pile, check whether the pile body is damaged, whether the components are firmly connected, 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 to ensure a firm connection;

[0033] Step 3: Turn on the charging function of the charging pile and start charging the electric car. 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 to work, 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, the 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, first turn off the charging function of the charging pile, then remove the vehicle's charging gun 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 evenly distributed on the side of the spiral tube away from the center of the pile body, a spiral airflow will be formed in 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 to the inside of the ash storage bin through the centrifugal holes under the action of centrifugal force, thereby realizing the 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 crowded 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 internal humidity of the charging pile to increase due to the use of water for cleaning like the prior art, thereby avoiding a series of problems caused by humidity problems such as decreased electrical insulation performance, short circuit failure and corrosion of metal parts, thereby 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 residual force of 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 residual 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 lower ash pipe, thereby avoiding the accumulation of dust inside the pile body, which is conducive to maintaining a clean environment inside the charging pile.

[0042] Among them: Since the outlet of the ash pipe is set downward and located at the rear of the pile body, this design has multiple benefits. First, the dust on both sides of the charging pile can be uniformly collected and discharged through the ash storage bin and the ash pipe, making the dust cleaning more centralized and efficient. Secondly, because the outlet of the ash pipe is downward, external dust is not easy to enter the interior of the ash pipe, thereby effectively preventing the secondary invasion of external dust and further ensuring the cleanliness of the interior 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 beneficial to improving the dust separation effect; compared with circular or other shaped air holes, the elliptical air holes can guide the air to enter the spiral tube more smoothly in the long axis direction, reducing the resistance when the air enters, and at the same time can also increase the air intake to a certain extent, improve the overall ventilation efficiency, and make the spiral airflow in the spiral tube more stable and powerful, thereby enhancing the dust separation ability.

[0044] Among them: the trumpet-shaped centrifugal hole, with its long side away from the inside of the spiral tube and its short side close to the inside of the spiral tube, makes it easier for dust to be 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 tangent direction of the outer edge of the spiral tube conforms to 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] Among them: the side of the spiral tube close to the center of the pile body gradually shrinks. This design makes the airflow channel inside the spiral tube gradually narrow. According to the principles of fluid mechanics, when the flow rate remains unchanged, the narrowing of the channel will lead to faster airflow speed, thereby enhancing the centrifugal force of the air when it rotates in the spiral tube. Stronger centrifugal force can more effectively separate impurities such as dust from the airflow, further improving the dust separation effect.

[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. It helps to maintain a suitable operating temperature inside the charging pile and ensure 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 a fluid vortex. The fluid vortex 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 of 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 existence of the fluid vortex enhances the heat exchange efficiency between the air and the internal components of the charging pile. The vortex motion makes the contact between the air and the surface of the electrical components more sufficient and frequent, and can take away the heat more quickly. Even the serious heating areas in the complex layout can be effectively cooled. For example, those key power modules that originally had difficulty in obtaining sufficient cold air cooling due to their location can be fully in contact with the cold air under the action of the fluid vortex, avoiding local excessive temperature, thereby slowing down the aging of electrical components, extending their service life, and reducing the risk of failure caused by overheating.

[0049] Among them: Compared with the traditional heat dissipation design in the past, under the same energy consumption, the effect formed by the present invention is more significant. In the traditional design, since the airflow mainly flows along the fixed channel, there are heat dissipation dead corners, which leads to local excessive temperature, which not only affects the performance and life of the electrical components, but also reduces the overall efficiency of the heat dissipation system, and requires 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, which 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 frontal 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 cross-sectional stereoscopic schematic diagram 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 cutaway perspective schematic diagram of the ash storage bin of the present invention;

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

[0057] Figure 7 It 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 figure:

[0060] 11. Pile body;

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

[0062] 3. Fan module;

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

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[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-mentioned 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 installed 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 the spiral tube 21 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 disposed 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 tangent 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 far away from the inside of the spiral tube 21, and the short side is close to the inside 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, 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, and 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 increase. As the air flow speed increases, the centrifugal force to which the air is subjected when rotating in the spiral tube 21 will also increase accordingly.

[0076] Under the action of centrifugal force, impurities such as dust mixed in the air will be thrown to the outside of the spiral tube 21 because their mass is smaller than the mass of air. Since the centrifugal hole 24 is designed to be trumpet-shaped, and the angle between it and the tangent 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 tangent direction of the outer edge of the spiral tube 21 conforms to 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 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 located 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, dust is separated and discharged, and the treated air circulates inside the pile body 11 to take away 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 component 4 is disposed inside each fan module 3, and each composite wind direction component 4 includes a limit 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 provided on the surface of the rotating shaft. The moving grooves 42 are obliquely provided on the inner surface of the housing. The moving blades 43 are slidably connected inside the limiting grooves 41 and the moving grooves 42 .

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

[0084] Specifically, during the operation of the car charging pile of 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 moving 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 moving groove 42, and the moving groove 42 is inclined on the inner surface of the shell. When the moving blade 43 rotates, the rod-shaped protrusion slides in the moving groove 42. Due to the inclined setting of the moving groove 42, the sliding of the rod-shaped protrusion in the moving groove 42 will cause the moving blade 43 to reciprocate in the radial direction.

[0086] When the rotating shaft drives the moving blade 43 to rotate, the moving blade 43 is driven by the rotating shaft in the circumferential direction, so that it moves in a circular motion around the shaft, and in the radial direction, because the rod-shaped protrusion slides in the inclined motion groove 42, the motion groove 42 generates a reaction force along the groove direction on the rod-shaped protrusion, and this reaction force can be decomposed into components along the radial direction and the circumferential direction, wherein the component along the radial direction causes the moving blade 43 to reciprocate in the radial direction. The combination of this rotation in the circumferential direction and the reciprocating motion in the radial direction forms a unique composite motion mode of 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, which makes the flow of air inside the pile body 11 more complicated 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 the first embodiment, although the structures such as the spiral tube 21 can achieve a certain degree of heat dissipation and dust separation, there may still be local uneven heat dissipation. The existence of fluid vortex can bring air to every corner inside the pile body 11, avoiding the occurrence of heat dissipation dead corners, so that the electrical components in various parts 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 contact the surface of the electrical components more frequently, taking away more heat, further improving the heat dissipation effect, thereby better maintaining the temperature stability inside the 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 lower 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 to ensure a firm connection;

[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 to work, 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 to work, 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;

[0095] 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;

[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 article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0099] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present 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 arranged in a circular shape; 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); A 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).

2. The vehicle charging pile according to claim 1, characterized in that: 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).

3. The vehicle charging pile according to claim 1, characterized in that: The side of the spiral tube (21) close to the center of the pile body (11) gradually shrinks.

4. The vehicle charging pile according to claim 1, characterized in that: The air holes (23) are all elliptical, 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.

5. The vehicle charging pile according to claim 4, characterized in that: The trumpet-shaped long side of the centrifugal hole (24) is far away from the interior of the spiral tube (21), while the 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 tangent direction of the outer edge of the spiral tube (21) is sixty degrees.

6. The vehicle charging pile according to claim 2, characterized in that: The outlet direction of the lower ash pipe (25) is arranged downward.

7. The vehicle charging pile according to claim 1, characterized in that: At least four groups of fan modules (3) are installed inside the pile body (11), and the fan modules (3) at least include a rotating shaft, a shell and fan blades. Composite wind direction components (4) are arranged inside the fan modules (3), and the composite wind direction components (4) include 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 arranged 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 inside the limiting grooves (41) and the moving grooves (42).

8. The vehicle charging pile according to claim 7, characterized in that: The movable blade (43) is arranged between every two 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 moving groove (42).

9. A vehicle charging method, applied to a vehicle charging pile as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Before using the car charging pile, check whether the pile body (11) is damaged in appearance, whether the connections of various components are firm, and ensure that the fan module (3), the ash lowering 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 to ensure a firm connection; 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).

10. The vehicle charging method according to claim 9, 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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