An outdoor charging pile for electric vehicle charging

Abstract

The application relates to the technical field of electric vehicle charging piles, in particular to an outdoor charging pile for electric vehicles. The technical scheme of the application comprises the following: a charging pile body; an inner chamber is arranged in the middle of a shell; an installation chamber and an air chamber are arranged in the side wall of the shell; a mounting seat is fixedly connected to the lower part of the installation chamber; at least three groups of exchange pipes are fixedly connected in the installation chamber; pipe heads are fixedly connected to the lower parts of the exchange pipes; first impellers are rotatably connected in the pipe heads; a mounting frame is fixedly connected to the lower part of the installation chamber; a support is fixedly connected in the mounting frame; and second impellers are rotatably connected to the support. The cooling liquid circulation structure and the air cooling structure are arranged, heat dissipation function is realized, physical isolation of internal charging equipment is realized, and dust invasion is avoided; in addition, the cooling liquid is used as an intermediate heat exchange medium, the air cooling structure is used to cool the cooling liquid, the low-temperature medium is prevented from directly contacting the high-temperature device, and the risk of thermal stress damage is reduced.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle charging pile technology, and in particular to an outdoor charging pile for charging electric vehicles. Background Technology

[0002] Electric vehicles, as a crucial carrier of green transportation, are seeing their application scale continuously expand, and outdoor charging stations are key infrastructure ensuring vehicle energy replenishment. To shorten charging wait times and improve user experience, current charging stations generally adopt strategies to increase charging power for fast charging. However, this significant increase in charging power brings a notable problem—a sharp increase in heat generation. The power modules, rectifier bridges, transformers, and other power electronic components inside the charging station generate substantial Joule heat under high current and high voltage. If this heat cannot be dissipated efficiently and promptly, it will accelerate component aging, reduce charging efficiency, and even trigger overheating protection shutdowns or fires, severely damaging the internal structure and affecting long-term reliability. Outdoor charging stations, in particular, face complex environmental challenges such as sun exposure, rain, and dust, placing even higher demands on the protection capabilities and heat dissipation efficiency of their cooling systems. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing an outdoor charging pile for electric vehicles with a high-power heat dissipation structure. This structure effectively dissipates the heat generated by high-power charging, prevents damage to the internal structure due to overheating, and ensures the safe, stable, and long-lasting operation of the charging pile.

[0004] The technical implementation of the present invention is as follows: an outdoor charging pile for electric vehicle charging, comprising: a charging pile body; the charging pile body is composed of a shell and a charging device integrated therein; an inner chamber is provided in the middle of the shell, and the main body of the charging device of the charging pile body is housed in the inner chamber; an installation chamber and an air chamber are provided on the side wall of the shell, wherein the air chamber is arranged around the periphery of the inner chamber, and the installation chamber is arranged around the periphery of the air chamber; a mounting seat is fixedly connected to the lower part of the installation chamber; at least three sets of exchange pipes are fixedly connected in the installation chamber, each exchange pipe is evenly distributed along the circumference of the installation chamber and arranged around the air chamber, and coolant is provided in the exchange pipes; a pipe head is fixedly connected to the lower part of the exchange pipe; a first impeller is rotatably connected in the pipe head; and a coolant is provided in the installation chamber. The system includes a first power assembly connected to a first impeller to drive its rotation, thereby circulating the coolant within the exchange pipe; a mounting frame fixedly connected to the lower part of the mounting chamber; a bracket fixedly connected within the mounting frame; a second impeller rotatably connected to the bracket; a second power assembly connected to the second impeller within the mounting chamber to drive its rotation, thereby promoting airflow within the mounting chamber; a filter screen covering the second impeller on the mounting frame to intercept dust and impurities; two sets of the mounting frame and its superstructure are symmetrically arranged within the mounting chamber; windows are provided on both lower sides of the housing, communicating with the lower part of the mounting chamber.

[0005] In a preferred embodiment of the present invention, the second power component includes: a servo motor fixedly connected to the lower part of the mounting chamber; a first transmission shaft rotatably connected to the lower part of the mounting chamber, the first transmission shaft being fixedly connected to the output shaft of the servo motor and located below the mounting base; a second transmission shaft rotatably connected to each mounting frame; a first synchronous belt set being provided between the first transmission shaft and the two second transmission shafts respectively; and a first bevel gear set being provided between the second transmission shaft and the second impeller in each mounting frame, the first bevel gear set being composed of two meshing bevel gears, respectively fixedly connected to the shaft body of the second transmission shaft and the rotating shaft of the second impeller.

[0006] In a preferred embodiment of the present invention, a first impeller is embedded in a tube head, with its blade portion located inside the tube head and its outer edge located outside the tube head, forming a sealed fit between the first impeller and the tube head; the first power assembly includes: a third drive shaft rotatably connected to a mounting base, the number and position of the third drive shafts corresponding to the first impellers; a second bevel gear set is provided between one of the third drive shafts and the first drive shaft, the second bevel gear set consisting of two meshing bevel gears, respectively fixedly connected to the first drive shaft and the third drive shaft; a third bevel gear set is provided between each corresponding first impeller and the third drive shaft, the third bevel gear set consisting of two meshing bevel gears, respectively fixedly connected to the outer periphery of the first impeller and the shaft body of the third drive shaft; a second synchronous belt set is provided between each third drive shaft.

[0007] In a preferred embodiment of the present invention, the charging pile further includes: mounting shafts rotatably connected to the four corners of each mounting frame, with the filter screens in each mounting frame correspondingly wound around the four mounting shafts, and the filter screens rotating when the mounting shafts rotate; a cleaning roller is fixedly connected to each mounting frame, and the cleaning rollers contact and cooperate with the surface of the filter screens; a collection box is slidably connected to the lower part of the housing, the collection box being located inside the mounting chamber and below the cleaning rollers; a guide plate is fixedly connected to the mounting frame, the guide plate being located below the cleaning rollers and connecting between the cleaning rollers and the collection box.

[0008] In a preferred embodiment of the present invention, the charging pile further includes: a speed reduction transmission belt group disposed on each mounting frame between the second transmission shaft and one of the mounting shafts, wherein the second transmission shaft speeds up the rotation of the mounting shaft; and a third synchronous belt group disposed on each mounting frame between each mounting shaft.

[0009] In a preferred embodiment of the present invention, the charging pile further includes: a support plate fixedly connected to the air chamber; a third impeller is rotatably connected to the support plate, the third impellers are distributed at the four corners of the air chamber, at least two sets are arranged at each position along the depth direction of the air chamber, and the third impellers are arranged in a unidirectional cycle so that the third impellers guide the air in the air chamber to flow in a uniform direction; a fourth drive shaft is rotatably connected to the air chamber, the fourth drive shaft is distributed at the four corners of the air chamber and adjacent to all the third impellers arranged in the corresponding depth direction; a fourth bevel gear set is provided between the third impellers and the fourth drive shaft, the fourth bevel gear set is composed of two meshing bevel gears, which are respectively fixedly connected to the shaft of each third impeller and the corresponding fourth drive shaft.

[0010] In a preferred embodiment of the present invention, the charging pile further includes: a fourth synchronous belt group is provided between the second drive shaft and the fourth drive shaft, and between each of the fourth drive shafts.

[0011] In a preferred embodiment of the present invention, the charging pile further includes: an exchange plate fixedly connected to the installation chamber, the exchange plate being used to increase the contact area between the air chamber and the installation chamber.

[0012] Compared with existing technologies, this invention has the following advantages: By setting up a coolant circulation structure and an air-cooling structure, this invention achieves heat dissipation while physically isolating the internal charging equipment to prevent dust intrusion. Furthermore, by using coolant as the intermediate heat exchange medium and employing an air-cooling structure to cool the coolant, this invention prevents the low-temperature medium from directly contacting high-temperature components, thereby reducing the risk of thermal stress damage. Therefore, this invention can significantly improve the operational reliability and service life of the equipment while ensuring rapid and efficient heat dissipation.

[0013] The advantages of the first and second power components used in this invention are that, on the one hand, they can optimize the use of the power source and improve energy efficiency; on the other hand, all transmission components are centrally arranged in the installation room, which facilitates maintenance and replacement.

[0014] By employing cleaning rollers to automatically clean the filter screen, this invention has the capability for long-term continuous operation without the need for frequent manual maintenance. The rotational motion of the filter screen enables comprehensive cleaning of the entire surface, avoiding cleaning dead spots. At the same time, thanks to the transmission structure of the speed reduction belt group and the third synchronous belt group, the cleaning action can be completed without the need for an additional power source, further optimizing the power layout and energy consumption efficiency of the entire equipment.

[0015] This invention drives the third impeller to rotate, which promotes the circulation of air in the air chamber to disperse heat, allowing the coolant to exchange heat more comprehensively and fully, thereby improving the heat exchange effect. This driving method also relies on power transmission, optimizing the overall power structure and improving energy efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the shell after partial cross-section in this invention.

[0018] Figure 3 This is a schematic diagram showing the position and structure of the exchange tube and tube head in this invention.

[0019] Figure 4 This is a separate diagram of the connection structure between the exchange tube, the first impeller, and the tube head in this invention.

[0020] Figure 5 This is a schematic diagram of the positional structure of the mounting frame and the filter screen in this invention.

[0021] Figure 6 This is a schematic diagram of the connection structure between the second impeller, the first power component, and the second power component in this invention.

[0022] Figure 7 This is a schematic diagram showing the positional structure of the filter screen and cleaning roller in this invention.

[0023] Figure 8 This is a schematic diagram of the connection structure between the second drive shaft, the mounting shaft, the reduction drive belt group, and the third synchronous belt group in this invention.

[0024] Figure 9 This is a schematic diagram of the position and structure of the third impeller in this invention.

[0025] Figure 10 This is a schematic diagram of the connection structure between the third impeller, the second drive shaft, and the fourth drive shaft in this invention.

[0026] Figure 11 This is a schematic diagram showing the positional structure of the exchange plate and exchange tube in this invention.

[0027] The above-mentioned drawings include the following reference numerals: 01, charging pile body; 02, shell; 03, inner chamber; 04, installation chamber; 05, air chamber; 06, exchange plate; 11, mounting base; 12, exchange pipe; 13, pipe head; 14, first impeller; 21, mounting frame; 22, bracket; 23, second impeller; 24, filter screen; 25, window; 31, servo motor; 32, first drive shaft; 33, second drive shaft; 34, first synchronous belt group; 35, first bevel gear group; 41, third drive shaft; 42, second bevel gear group; 43, third bevel gear group; 44, second synchronous belt group; 51, mounting shaft; 52, cleaning roller; 53, collection box; 54, guide plate; 55, reduction drive belt group; 56, third synchronous belt group; 61, support plate; 62, third impeller; 63, fourth drive shaft; 64, fourth bevel gear group; 65, fourth synchronous belt group. Detailed Implementation

[0028] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0029] Example: An outdoor charging station for electric vehicle charging, such as... Figure 1 , Figure 2 , Figure 3 and Figure 11 As shown, it includes: a charging pile body 01; the charging pile body 01 is composed of a housing 02 and a charging device integrated therein; the housing 02 has an inner chamber 03 in the middle, the main body of the charging device of the charging pile body 01 is housed in the inner chamber 03, and its docking parts (such as charging guns and connecting wires) are set on the outer wall of the housing 02; the side wall of the housing 02 has an installation chamber 04 and an air chamber 05, wherein the air chamber 05 is arranged around the outer periphery of the inner chamber 03, and the installation chamber 04 is arranged around the outer periphery of the air chamber 05; an exchange plate 06 is fixedly installed in the installation chamber 04, which is used to increase the contact area between the air chamber 05 and the installation chamber 04 to improve the heat exchange efficiency.

[0030] like Figures 2-4As shown, this charging pile also includes: a mounting base 11 fixedly installed in the lower part of the installation chamber 04; at least three sets of exchange pipes 12 are fixedly installed in the installation chamber 04, each exchange pipe 12 is evenly distributed around the circumference of the installation chamber 04 and arranged around the air chamber 05, and coolant is provided in the exchange pipe 12; a pipe head 13 is fixedly installed at the lower part of the exchange pipe 12; a first impeller 14 is rotatably installed in the pipe head 13; a first power assembly is provided in the installation chamber 04, which is connected to the first impeller 14 for driving the first impeller 14 to rotate, thereby causing the coolant in the exchange pipe 12 to circulate.

[0031] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, this charging pile also includes: a mounting frame 21 fixedly installed in the lower part of the installation chamber 04; a bracket 22 fixedly installed in the mounting frame 21; a second impeller 23 rotatably installed on the bracket 22; a second power assembly is provided in the installation chamber 04, which is connected to the second impeller 23 to drive the second impeller 23 to rotate, thereby promoting airflow in the installation chamber 04; a filter screen 24 is provided on the mounting frame 21, which covers the outside of the second impeller 23 to intercept dust and impurities; two sets of the above-mentioned mounting frame 21 and its upper structure are provided, symmetrically arranged in the installation chamber 04; windows 25 are opened on both sides of the lower part of the shell 02, and the windows 25 are connected to the lower part of the installation chamber 04, so that the airflow driven by the second impeller 23 is mainly concentrated in the lower area of ​​the installation chamber 04.

[0032] When the charging pile is in charging operation, the heat generated by the high-speed operation of the charging equipment inside the housing 02 is dissipated into the air chamber 05. At this time, the first and second power components are activated: on the one hand, the coolant is driven to circulate in the exchange pipe 12, and on the other hand, the external airflow is driven to enter and exit the installation chamber 04 through the window 25. During this process, the temperature of the external airflow is much lower than the internal temperature of the charging pile during operation. Therefore, after the low-temperature airflow enters the installation chamber 04, it undergoes countercurrent heat exchange with the coolant, which has been heated by heat exchange through the exchange plate 06, thereby carrying away the heat absorbed by the coolant and expelling it from the installation chamber 04. In this way, the charging pile utilizes the high specific heat capacity of the coolant to enable the coolant to simultaneously and efficiently exchange heat with the high-temperature gas in the air chamber 05 and the low-temperature airflow in the installation chamber 04, thereby quickly removing heat and achieving efficient cooling of the charging pile body 01.

[0033] When using this charging station, its heat dissipation method has two major advantages: First, the entire heat dissipation path is physically isolated from the main body of the charging equipment, effectively preventing external dust and impurities from entering the charging equipment and ensuring the normal operation of the charging station; Second, using coolant as the intermediate heat exchange medium and cooling it through an air-cooling structure can prevent the excessively low temperature medium from directly contacting the high temperature charging equipment, thereby reducing the thermal stress damage to the charging equipment caused by drastic temperature differences.

[0034] This charging station utilizes a coolant circulation structure and an air-cooling structure to achieve heat dissipation while maintaining physical isolation from the internal charging equipment, preventing dust intrusion. Furthermore, by using coolant as the intermediate heat exchange medium and employing an air-cooling structure to cool the coolant, this charging station avoids thermal shock to high-temperature components caused by sudden temperature changes, thus reducing the risk of thermal stress damage. Therefore, this charging station significantly improves the operational reliability and lifespan of the equipment while ensuring rapid and efficient heat dissipation.

[0035] like Figure 2 , Figure 5 and Figure 6 As shown, the first power assembly includes: a servo motor 31 fixedly installed in the lower part of the mounting chamber 04; a first drive shaft 32 rotatably installed in the lower part of the mounting chamber 04, which is fixedly connected to the output shaft of the servo motor 31 and located below the mounting base 11; a second drive shaft 33 rotatably installed in each mounting frame 21; a first synchronous belt group 34 is provided between the first drive shaft 32 and the two second drive shafts 33 respectively, for transmitting synchronous rotational driving force to the two second drive shafts 33; in each mounting frame 21, a first bevel gear group 35 is provided between the second drive shaft 33 and the second impeller 23, which is composed of two meshing bevel gears, respectively fixedly installed on the shaft of the second drive shaft 33 and the rotating shaft of the second impeller 23, for changing the transmission direction of the rotational driving force.

[0036] like Figure 2 , Figure 5 and Figure 6As shown, the first impeller 14 is embedded in the tube head 13, with its blade portion located inside the tube head 13 and its outer edge located outside the tube head 13, forming a sealed fit between the first impeller 14 and the tube head 13; the first power assembly also includes: a third drive shaft 41 rotatably mounted on the mounting base 11, the number and position of the third drive shaft 41 corresponding to the first impeller 14; a second bevel gear set 42 is provided between one of the third drive shafts 41 and the first drive shaft 32, the second bevel gear set 42 consisting of two meshing bevel gears, respectively fixedly mounted on the first drive shaft 32 and the third drive shaft 41; a third bevel gear set 43 is provided between each corresponding first impeller 14 and the third drive shaft 41, the third bevel gear set 43 consisting of two meshing bevel gears, respectively fixedly mounted on the outer periphery of the first impeller 14 and the shaft body of the third drive shaft 41; a second synchronous belt set 44 is provided between each third drive shaft 41 to transmit synchronous rotational driving force.

[0037] When the servo motor 31 starts, it drives the first drive shaft 32 to rotate. The first drive shaft 32 drives the second drive shaft 33 to rotate through the first synchronous belt group 34. The second drive shaft 33 then drives the second impeller 23 to rotate after the reversing action of the first bevel gear group 35. At the same time, the rotation of the first drive shaft 32 is transmitted to the third drive shaft 41 through the second bevel gear group 42. Then, through the reversing action of the third bevel gear group 43 and the synchronous transmission of the second synchronous belt group 44, the synchronous rotation drive of all the first impellers 14 is realized.

[0038] Therefore, this charging pile uses the aforementioned first power component and second power component as the drive structure, which on the one hand optimizes the use of power source and improves energy consumption efficiency; on the other hand, all transmission components are centrally arranged in the installation chamber 04, which facilitates maintenance and replacement.

[0039] like Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, this charging pile also includes: mounting shafts 51 rotatably installed at the four corners of each mounting frame 21, with the filter screens 24 in each mounting frame 21 correspondingly wound around the four mounting shafts 51, and the rotation of the mounting shafts 51 driving the filter screens 24 to rotate; cleaning rollers 52 are fixedly installed on each mounting frame 21, and the cleaning rollers 52 are in contact with the surface of the filter screens 24; a collection box 53 is slidably installed on the lower part of the housing 02, and the collection box 53 is located in the mounting chamber 04 and below the cleaning rollers 52; a guide plate 5 is fixedly installed on the mounting frame 21. 4. The guide plate 54 is located below the cleaning roller 52 and is connected between the cleaning roller 52 and the collection box 53. On each mounting frame 21, a reduction transmission belt group 55 is provided between the second drive shaft 33 and one of the mounting shafts 51. The diameter of the transmission wheel on the mounting shaft 51 is larger than the diameter of the transmission wheel on the second drive shaft 33, so that the second drive shaft 33 drives the mounting shaft 51 to rotate in a reduction manner. On each mounting frame 21, a third synchronous belt group 56 is provided between each mounting shaft 51 to drive all mounting shafts 51 to rotate synchronously.

[0040] When the second power unit operates and drives the second impeller 23 to rotate, the second drive shaft 33 simultaneously drives the mounting shaft 51 to rotate via the reduction belt assembly 55, thereby driving the filter screen 24 to rotate. After intercepting dust and other impurities, the filter screen 24 gradually moves to the position of contact with the cleaning roller 52 as it rotates; therefore, by utilizing the relative movement between the filter screen 24 and the cleaning roller 52, the cleaning roller 52 can remove the dust and impurities intercepted on the filter screen 24; the removed impurities fall into the collection box 53 along the guide plate 54, thus maintaining the long-term filtration function of the filter screen 24. Afterwards, only the collection box 53 needs to be removed to clean the impurities.

[0041] Through the automatic cleaning of the filter screen 24 by the cleaning roller 52, this charging pile has the ability to operate continuously for a long time without the need for frequent manual maintenance; the rotational movement of the filter screen 24 can achieve a comprehensive cleaning of the entire surface of the filter screen 24, avoiding cleaning dead corners; at the same time, with the help of the power transmission structure of the speed reduction belt group 55 and the third synchronous belt group 56, the cleaning action can be completed without the need for an additional power source, optimizing the power layout and energy consumption efficiency of the entire equipment.

[0042] like Figure 1 , Figure 2 , Figure 9 and Figure 10As shown, this charging pile also includes: a support plate 61 fixedly installed in the air chamber 05; a third impeller 62 is rotatably installed on the support plate 61, the third impeller 62 is distributed at the four corners of the air chamber 05, and at least two sets are arranged at each position along the depth direction of the air chamber 05, and each third impeller 62 is arranged in a unidirectional cycle, so that when the third impeller 62 rotates, it guides the air in the air chamber 05 to flow in a uniform direction; a fourth drive shaft 63 is rotatably installed in the air chamber 05, the fourth drive shaft 63 is distributed at the four corners of the air chamber 05 and is adjacent to all the third impellers 62 arranged in the corresponding depth direction; a fourth bevel gear set 64 is provided between the third impeller 62 and the fourth drive shaft 63, the fourth bevel gear set 64 is composed of two meshing bevel gears, which are fixedly installed on the shafts of each third impeller 62 and the corresponding fourth drive shaft 63; a fourth synchronous belt set 65 is provided between the second drive shaft 33 and the fourth drive shaft 63, and between each fourth drive shaft 63.

[0043] Since the heating position of the charging equipment in the charging pile body 01 is not uniform, this charging pile drives the third impeller 62 to rotate, causing the air in the air chamber 05 to circulate and disperse the heat, so that the coolant can exchange heat more comprehensively and fully, thereby improving the heat exchange effect; this driving method also relies on power transmission to optimize the overall power structure and improve energy consumption efficiency.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An outdoor charging station for charging electric vehicles, comprising: The charging pile body (01) consists of a shell (02) and a charging device integrated therein; characterized in that an inner chamber (03) is provided in the middle of the shell (02), and the main body of the charging device of the charging pile body (01) is housed in the inner chamber (03); an installation chamber (04) and an air chamber (05) are provided on the side wall of the shell (02), wherein the air chamber (05) is arranged around the periphery of the inner chamber (03), and the installation chamber (04) is arranged around the outside of the air chamber (05). The charging pile also includes: a mounting base (11) fixedly connected to the lower part of the installation chamber (04); at least three sets of exchange pipes (12) are fixedly connected in the installation chamber (04), each exchange pipe (12) is evenly distributed around the circumference of the installation chamber (04) and arranged around the air chamber (05), and coolant is provided in the exchange pipes (12); a pipe head (13) is fixedly connected to the lower part of the exchange pipe (12); a first impeller (14) is rotatably connected in the pipe head (13); and a charging pile is provided in the installation chamber (04). The first power assembly is connected to the first impeller (14) for driving the first impeller (14) to rotate, thereby causing the coolant in the exchange pipe (12) to circulate; the mounting frame (21) is fixedly connected to the lower part of the mounting chamber (04); the bracket (22) is fixedly connected inside the mounting frame (21); the second impeller (23) is rotatably connected to the bracket (22); the second power assembly is provided inside the mounting chamber (04), and the second power assembly is connected to the second impeller (23) for driving the second impeller (23) to rotate, thereby promoting the airflow inside the mounting chamber (04); the mounting frame (21) is provided with a filter screen (24), which covers the outside of the second impeller (23) for intercepting dust and impurities; the above-mentioned mounting frame (21) and its structure are provided in two sets, symmetrically arranged inside the mounting chamber (04); windows (25) are provided on both sides of the lower part of the shell (02), and the windows (25) are connected to the lower part of the mounting chamber (04).

2. The outdoor charging pile for electric vehicle charging as described in claim 1, characterized in that, The second power assembly includes: a servo motor (31) fixedly connected to the lower part of the mounting chamber (04); a first drive shaft (32) rotatably connected to the lower part of the mounting chamber (04), the first drive shaft (32) being fixedly connected to the output shaft of the servo motor (31) and located below the mounting base (11); a second drive shaft (33) rotatably connected to each mounting frame (21); a first synchronous belt group (34) is provided between the first drive shaft (32) and the two second drive shafts (33); in each mounting frame (21), a first bevel gear group (35) is provided between the second drive shaft (33) and the second impeller (23), the first bevel gear group (35) being composed of two meshing bevel gears, which are fixedly connected to the shaft of the second drive shaft (33) and the rotating shaft of the second impeller (23) respectively.

3. An outdoor charging pile for electric vehicle charging as described in claim 2, characterized in that, The first impeller (14) is embedded in the tube head (13), with its blade portion located inside the tube head (13) and its outer edge located outside the tube head (13). A sealed fit is formed between the first impeller (14) and the tube head (13). The first power assembly includes: a third drive shaft (41) rotatably connected to the mounting base (11), the number and position of the third drive shafts (41) corresponding to the first impeller (14); a second bevel gear set (42) is provided between one of the third drive shafts (41) and the first drive shaft (32). The two bevel gear set (42) consists of two meshing bevel gears, which are fixedly connected to the first drive shaft (32) and the third drive shaft (41) respectively; a third bevel gear set (43) is provided between each corresponding first impeller (14) and the third drive shaft (41), which consists of two meshing bevel gears, which are fixedly connected to the outer circumference of the first impeller (14) and the shaft body of the third drive shaft (41) respectively; a second synchronous belt set (44) is provided between each third drive shaft (41).

4. An outdoor charging pile for electric vehicle charging as described in claim 3, characterized in that, The charging pile also includes: mounting shafts (51) rotatably connected to the four corners of each mounting frame (21), and the filter screens (24) in each mounting frame (21) are correspondingly wound around the four mounting shafts (51). When the mounting shafts (51) rotate, they drive the filter screens (24) to rotate. A cleaning roller (52) is fixedly connected to each mounting frame (21), and the cleaning roller (52) contacts and cooperates with the surface of the filter screen (24). A collection box (53) is slidably connected to the lower part of the housing (02). The collection box (53) is located in the installation chamber (04) and below the cleaning roller (52). A guide plate (54) is fixedly connected to the mounting frame (21). The guide plate (54) is located below the cleaning roller (52) and is connected between the cleaning roller (52) and the collection box (53).

5. An outdoor charging station for electric vehicle charging as described in claim 4, characterized in that, The charging pile also includes: a speed reduction transmission belt group (55) set between the second drive shaft (33) and one of the mounting shafts (51) on each mounting frame (21), the second drive shaft (33) speeds up the mounting shaft (51) to rotate; and a third synchronous belt group (56) provided between each mounting shaft (51) on each mounting frame (21).

6. An outdoor charging station for electric vehicle charging as described in claim 5, characterized in that, The charging pile further includes: a support plate (61) fixedly connected to the air chamber (05); a third impeller (62) is rotatably connected to the support plate (61), the third impeller (62) is distributed at the four corners of the air chamber (05), at least two sets are provided at each position along the depth direction of the air chamber (05), and each third impeller (62) is arranged in a unidirectional cycle so that the third impeller (62) guides the air in the air chamber (05) to flow in a uniform direction; a fourth drive shaft (63) is rotatably connected to the air chamber (05), the fourth drive shaft (63) is distributed at the four corners of the air chamber (05) and adjacent to all the third impellers (62) arranged in the corresponding depth direction; a fourth bevel gear set (64) is provided between the third impeller (62) and the fourth drive shaft (63), the fourth bevel gear set (64) is composed of two meshing bevel gears, which are fixedly connected to the shafts of each third impeller (62) and the corresponding fourth drive shaft (63).

7. An outdoor charging pile for electric vehicle charging as described in claim 6, characterized in that, The charging pile also includes: a fourth synchronous belt group (65) is provided between the second drive shaft (33) and the fourth drive shaft (63), and between each of the fourth drive shafts (63).

8. An outdoor charging pile for electric vehicle charging as described in claim 7, characterized in that, The charging pile also includes an exchange plate (06) fixedly connected in the installation chamber (04), the exchange plate (06) being used to increase the contact area between the air chamber (05) and the installation chamber (04).

Images