CN117048398B

CN117048398B - Electric vehicle charging device based on positive and negative pulse circuit and application method thereof

Info

Publication number: CN117048398B
Application number: CN202311310436.6A
Authority: CN
Inventors: 孙龙林; 缪欣; 刘新振
Original assignee: Jiangsu Zhethai Electrical Technology Co ltd
Current assignee: Jiangsu Zhethai Electrical Technology Co ltd
Priority date: 2023-10-11
Filing date: 2023-10-11
Publication date: 2023-12-15
Anticipated expiration: 2043-10-11
Also published as: CN117048398A

Abstract

The invention discloses an electric vehicle charging device based on a positive and negative pulse circuit, which comprises a charging pile body, wherein a collecting component is arranged at the top of the charging pile body and is used for collecting a line. According to the invention, by installing the cable retracting assembly, a worker needs to pull the pull ropes arranged in the cable retracting assembly towards two sides and move the two lantern rings towards the outer sides of the two cone barrels respectively, meanwhile, the two lantern rings can drive the short ropes and the long ropes to move downwards through the connecting plates to stretch the two springs respectively, so that the lantern rings and the elastic belts can be placed on the inner sides of the positioning grooves to be positioned, then the two springs can shrink along the arc plates by utilizing the resilience force and drive the connecting plates to move upwards through the short ropes and the long ropes respectively, the connecting plates can pull the cable to be bent upwards at two points through the two lantern rings and the supporting plates, and the S-shaped bending of the cable can be stored upwards, so that the device can conveniently store the cable and improve the safety of the cable.

Description

Electric vehicle charging device based on positive and negative pulse circuit and application method thereof

Technical Field

The invention relates to the technical field of electric vehicle charging devices, in particular to an electric vehicle charging device based on a positive and negative pulse circuit and a use method thereof.

Background

The utility model provides an electric motor car charging device is a facility for charging for the electric motor car, it can utilize positive pulse and negative pulse to charge for the electric motor car battery in turn with positive pulse by the positive pulse circuit that usually comprises dc-to-ac converter, transformer, rectifier and control circuit, the cable that fills electric pile main part and rifle connection generally is longer, and naturally drop in electric pile main part one side of charging, expose outside, there is the reason that traditional device is not perfect enough, there is not the facility that can conveniently accomodate the cable, accomodate the cable is more troublesome, and an electric motor car charging device based on positive and negative pulse circuit and application method can provide convenience for the staff.

The existing electric vehicle charging device has the following defects:

patent document: JP2021101611a discloses an electric vehicle charging system, an electric vehicle charging device, and an electric vehicle charging method "to easily secure installation space and electric power required for charging around a road. The electric vehicle charging device 2 includes a charger 22 for charging a battery mounted on the electric vehicle, a ground power distribution device 24 for relaying electric power supplied from a distribution line 23 in the ground to the ground, and the road 11. A case 21 is provided which is installed in the vicinity and accommodates a charger 22 and a ground distribution device 24, the charger 22 charging the battery using electric power supplied from a distribution line 23. The traditional supervision device is not enough to have a facility capable of conveniently accommodating cables, so that the safety is reduced.

The traditional electric vehicle charging device is not perfect enough, and the cable is exposed outside and is easy to be wetted and corroded by rainwater, so that the cable is inconvenient to provide protection, and the service life of the cable is reduced.

3. The traditional electric vehicle charging device is not perfect enough, is inconvenient to collect and store rainwater for people to use, and reduces the functionality.

4. The traditional electric vehicle charging device is not perfect enough, has no facility for providing anti-collision protection for the charging pile main body conveniently, and reduces the safety.

Disclosure of Invention

The invention aims to provide an electric vehicle charging device based on a positive and negative pulse circuit and a use method thereof, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the electric vehicle charging device based on the positive and negative pulse circuit comprises a charging pile main body, wherein a collecting component is arranged at the top of the charging pile main body and is used for collecting a line;

the cable is installed on the right side of charging pile main part, draw the subassembly including installing the eaves board at charging pile main part top, the fagging is installed to the left side inner wall of eaves board, and the fagging is connected with the top of charging pile main part, the backup pad is installed on the right side of fagging, the fixed plate is installed on the right side of backup pad, the connecting block is installed respectively to the front and the back of fixed plate, and two connecting blocks are located the upper right corner of charging pile main part, two the arc board is installed respectively on the right side of connecting block, two springs are installed on the right side of fagging, and two springs are located the inboard of two arc boards respectively, two short rope and long rope are installed respectively to the bottom of spring, and the short rope is located the back of long rope, the bottom of short rope and long rope is installed and is linked the board, the lantern ring is installed to the bottom of linking the board, the top and the bottom of lantern ring runs through and installs the elastic band, two brace plates are installed in the outside of cable, the constant head tank has been seted up in the outside of brace plate.

Preferably, the front of charging pile main part installs the front guard board, and the front of front guard board is inlayed and is installed the display screen, and the button is installed in the front of front guard board, and the right side of charging pile main part is seted up flutedly, and the one end of cable is located the inboard of recess, and the groove of stepping down has been seted up on the right side of charging pile main part, and the slot is located the inboard of stepping down the groove, and the rifle that charges is installed to the other end of cable, and the inboard of slot is inserted to the charging end of rifle, and the thermovent has been seted up on the right side of charging pile main part.

Preferably, two cone barrels are arranged on the outer side of the cable, and the two cone barrels are respectively connected with the backs of the two supporting discs.

Preferably, the transparent plate is installed in the front of eaves board, and plastic cloth is installed to the bottom of transparent plate, and plastic cloth's back is installed and is propped the lid, and prop the top that the lid is located the groove of stepping down, prop the right side of lid and install the protection film, prop the back of lid and install the reinforcing bar, waterproof cloth is installed at the top of reinforcing bar, and the top of waterproof cloth is connected with the bottom of eaves board.

Preferably, the collar is located on the outside of the cable.

Preferably, two flanks are installed at the top of eaves board, the tray is installed in the left side of eaves board, the protection network is installed at the top interconnect of tray and two flanks, four return bends are installed in the back run-through of tray, the storehouse is installed to the bottom of return bend, and the storehouse is located the back of electric pile main part, three layer board is installed to the front inner wall of storehouse, thick filter plate and two thin filter plates are installed respectively at the top of three layer board, thick filter plate is located the bottom of return bend, two thin filter plates are located the bottom of thick filter plate, the end plate is installed respectively at the back of thick filter plate and two thin filter plates, three sealing washer is installed in the back of storehouse, the pull handle is installed at the back of end plate, the funnel is installed to the inboard of storehouse, and be located the bottom of thin filter plate, the active carbon is installed to the inboard of funnel, the filter sand is located the top of active carbon, the storage tank is installed in the right side run-through of storehouse, tap is installed in the top of storage tank, the top of storehouse, and the top of storage tank is located the top of storage tank, and the left side and the backplate of protection plate are worn-out.

Preferably, the annular barrel is installed at the back of storage tank, the annular barrel is located the outside of filling electric pile main part and front guard board, the back of storage tank runs through the annular barrel and has seted up the opening, a plurality of rubber rings are installed in positive left side and the back of annular barrel running through, the inside of rubber ring is run through and is installed the push rod, and push rod and rubber ring closely laminate, the atress board is installed to the one end that the annular barrel was kept away from to the push rod, the disturbance board is installed to the other end of push rod, and the disturbance board is located the inboard of annular barrel, a plurality of plugs are installed in the top of annular barrel running through, the journal stirrup is installed at the top of plug, connecting rope is installed in the outside of journal stirrup, and connecting rope is connected with the top of annular barrel.

Preferably, the method for using the electric vehicle charging device is as follows:

s1, firstly, a worker needs to firmly install a charging pile body at a working place and electrifies the charging pile body, so that the charging pile body forms a positive and negative pulse circuit by mutually matching an inverter, a transformer, a rectifier and a control circuit which are arranged in the charging pile body, and the positive and negative pulse circuit is used for converting direct current into a pulse form;

s2, then a worker needs to pull out the charging gun from the slot and move out of the abdication slot, meanwhile, bends the cable to move the charging gun, so that the charging gun is connected with a charging port of the electric vehicle, and starts the charging pile body by taking the content displayed on the display screen as a reference operation key, so that the charging pile body alternately provides electric energy for the battery of the electric vehicle by positive and negative pulses formed by the positive and negative pulse circuits through the cable and the charging gun;

S3, when the charging is completed, a worker needs to lift the protective film under the support of the supporting cover, and inserts the charging gun into the inner side of the slot through the yielding groove to be stored, then the worker needs to pull the pull ropes to the two sides, so that the pull ropes stretch the elastic belts through the lantern rings and respectively move to the outer sides of the two cone drums, the two lantern rings and the elastic belts can respectively move to the outer sides of the two supporting disks by utilizing the inclination angles of the cone drums, meanwhile, the two lantern rings respectively drive the short ropes and the long ropes to move downwards through the connecting plates, so that the short ropes and the long ropes stretch the two springs under the action of external force and under the support of the supporting plates and under the guide of the arc plates, the lantern rings and the elastic belts can be placed into the inner sides of the positioning groove, the positioning lantern rings and the elastic belts are matched with the supporting disks to prevent the lantern rings and the elastic belts from being separated from the supporting plates under the action of natural force, and then the two springs can shrink along the arc plates by utilizing the reverse elasticity, and respectively drive the connecting plates to move upwards through the short ropes and the long ropes, so that the connecting plates pull the cable to bend the cable upwards under the support of the supporting plates, and the bending and the S moves upwards to be stored upwards;

s4, when the S-shaped bending of the cable moves upwards to be stored, the cable penetrates through the reinforcing steel bars to move to the inner side of the waterproof cloth, so that the waterproof cloth provides protection for the cable, when the charging gun is inserted into the inner side of the slot, the cable can move between the supporting cover, the protective film and the plastic cloth, so that the supporting cover, the protective film and the plastic cloth are matched to provide protection for the charging gun, when the weather rains, the vertically fallen rainwater can be firstly intercepted by the cornice, and the obliquely fallen rainwater can be blocked by the transparent plate, the plastic cloth, the waterproof cloth and the protective film, and the transparent plate, the waterproof cloth and the protective film are made of transparent materials, so that people can conveniently observe the conditions of the charging gun and the cable, and meanwhile, the transparent plate, the plastic cloth, the waterproof cloth and the protective film are soft and can deform randomly under the action of external force, and therefore, people can not be influenced to take and move the charging gun and the cable;

S5, the staff can pass the protection network under the effect of gravity and fall to the top of eaves board at the rainwater on rainy day, simultaneously great impurity can intercept at the top of protection network, then the rainwater can then flow left under the inclination effect of eaves board and the guiding effect of flank, make the inboard that intercepts rainwater flowed to the tray collect, then the rainwater can then flow to the inboard of return bend under the support of tray, and pass the top of storehouse along the return bend under the effect of gravity and fall to the top of coarse filter plate, make coarse filter plate carry out the prefilter to the rainwater under the support of end plate and support board, then the rainwater can pass coarse filter plate whereabouts to the top of fine filter plate, make the fine filter plate carry out further filtration to the rainwater under the support of end plate and support of support board, the rainwater after the filtration then can pass the fine filter plate and flow to the top of filter sand, make the filter sand provide the infiltration passageway under the support of funnel, and further intercept impurity in the rainwater infiltration process, finally the rainwater can be immersed in the active carbon, make the active carbon absorb the inboard in the rainwater, then the rainwater can pass active carbon and the bottom wall and the storehouse under the effect of gravity and fall to the top of coarse filter plate, the rainwater can be opened according to the actual storage tank of the people 'S that can be used to the water-washed out of the storehouse, the water can be opened the water storage pile is opened to the people' S the water-washed out of the aspect is washed the storage pile according to the aspect of the tap of the aspect of the fact that can be stored.

Preferably, in the step S5, the method further includes the following steps:

s51, water stored in the storage tank can flow through the through hole to be stored in the inner side of the annular barrel, when the electric vehicle collides towards the direction of the charging pile main body, the stress plate can bear external force at first, and pushes the push rod under the action of external force and the support of the rubber ring, the push rod pushes the rubber ring to deform, and pushes the disturbance plate to the central position of the annular barrel through the rubber ring, the disturbance plate is enabled to disturb the water stored in the inner side of the annular barrel under the action of external force, and the external force is conducted to the stored water, so that the water flows in the inner side of the annular barrel and the storage tank to consume the external force, when the impact force is overlarge, the stress plate is pushed by the external force to be contacted with the outer side of the annular barrel, the external force is conducted to the annular barrel, then the annular barrel can deform under the action of external force, the external force is conducted to the water and the air in the annular barrel, the water and the air in the annular barrel are enabled to impact and jack up the plug under the action of the external force, the plug and the annular barrel are separated and open, and then the external force is enabled to pass through the opening of the plug and discharge to the outside, and the impact force is buffered, and the protection is provided for the charging pile main body.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the invention, by installing the cable retracting assembly, a worker needs to pull the pull ropes arranged in the cable retracting assembly towards two sides and move the two lantern rings towards the outer sides of the two cone barrels respectively, meanwhile, the two lantern rings can drive the short ropes and the long ropes to move downwards through the connecting plates to stretch the two springs respectively, so that the lantern rings and the elastic belts can be placed on the inner sides of the positioning grooves to be positioned, then the two springs can shrink along the arc plates by utilizing the resilience force and drive the connecting plates to move upwards through the short ropes and the long ropes respectively, the connecting plates can pull the cable to be bent upwards at two points through the two lantern rings and the supporting plates, and the S-shaped bending of the cable can be stored upwards, so that the device can conveniently store the cable and improve the safety of the cable.

2. According to the invention, the cornice arranged in the cornice collecting assembly can provide support for the transparent plate, the waterproof cloth can provide protection for the cable after the cable is folded in an S shape and moved upwards for storage, the supporting cover, the protective film and the plastic cloth cover the charging gun to provide protection for the charging gun after the charging gun is inserted into the inner side of the slot, when raining, the vertically falling rainwater can be firstly intercepted by the cornice, the obliquely falling rainwater can be blocked by the transparent plate, the plastic cloth, the waterproof cloth and the protective film, and the transparent plate, the waterproof cloth and the protective film are made of transparent materials, so that personnel can conveniently observe the charging gun and the cable, the device can conveniently provide protection for the cable and the charging gun, the rainwater is prevented from corroding the cable, and the service life is prolonged.

3. According to the invention, the collecting assembly is arranged, the cornice arranged in the collecting assembly can provide stable support for the side wings, the side wings and the cornice are matched to provide a guiding effect for flowing leftwards for rainwater, the rainwater in rainy days can pass through the protective net and fall to the top of the cornice, meanwhile, larger impurities can be intercepted at the top of the protective net, then the rainwater can flow leftwards to the inner side of the tray for collection, then the rainwater can flow to the inner side of the bent pipe, and pass through the top of the storage bin along the bent pipe to fall to the top of the coarse filter plate, so that the coarse filter plate and the fine filter plate gradually filter the rainwater under the support of the end plate and the support plate, the filtered rainwater can flow to the top of the sand filter, the sand filter further intercepts impurities, finally the rainwater can be immersed in the activated carbon to remove peculiar smell, then the treated rainwater can pass through the activated carbon and the funnel to fall to the inner side of the bottom wall of the storage bin, meanwhile, the stored rainwater can pass through the through port to enter the inner side of the storage tank for storage, and people can rotate the water tap to open the channel according to the actual situation, so that the water stored at the inner side of the storage tank can be discharged for washing the dirt of people or the outer surface of the charging pile can be used conveniently, and the device can be used, and the collecting performance is improved.

4. According to the invention, the storage tank is arranged, the storage tank can provide an opening space for the through hole, the through hole can provide a circulation channel for water, the storage tank can provide a storage space for water, when the electric vehicle collides towards the direction of the charging pile main body, the stress plate can bear external force at first and push the push rod, the push rod pushes the disturbance plate towards the center of the annular barrel under the support of the rubber ring, the disturbance plate disturbs water stored inside the annular barrel and transmits the external force to the stored water, the water flows inside the annular barrel and the storage tank to consume the external force, when the collision force is overlarge, the stress plate is contacted with the outer side of the annular barrel, the external force is transmitted to the annular barrel, then the annular barrel deforms under the effect of the external force and transmits the external force to the water and the air inside the annular barrel, the water and the air inside the annular barrel are impacted upwards under the effect of the external force to jack the plug, the plug is separated from the annular barrel to open the opening, and then the external force is carried by the water and the air to pass through the opening of the plug to be discharged outside, so that the device can provide anti-collision protection for the charging pile main body, and safety is improved.

Drawings

FIG. 1 is an isometric view of the present invention;

fig. 2 is a schematic perspective view of a main body of a charging pile according to the present invention;

Fig. 3 is a schematic perspective view of a waterproof cloth according to the present invention;

FIG. 4 is a schematic view of a spring in a perspective configuration according to the present invention;

fig. 5 is a schematic front perspective view of a charging pile body according to the present invention;

FIG. 6 is a schematic side sectional view of a cartridge of the present invention;

FIG. 7 is a schematic top view of the interior of the cask according to the present invention;

FIG. 8 is a flow chart of the present invention;

fig. 9 is a schematic diagram of a charging pile body, an inverter, a transformer and a rectifier combination.

In the figure: 1. a charging pile body; 2. a front guard board; 3. a display screen; 4. a key; 5. a groove; 6. a relief groove; 7. a slot; 8. a cable; 9. a charging gun; 10. a heat radiation port; 11. cornice; 12. a supporting plate; 13. a support plate; 14. a connecting block; 15. fixing plates; 16. an arc plate; 17. a spring; 18. a short rope; 19. a long rope; 20. a connecting plate; 21. a collar; 22. an elastic band; 23. a pull rope; 24. a cone; 25. a support disc; 26. a positioning groove; 27. a transparent plate; 28. a plastic cloth; 29. a supporting cover; 30. a protective film; 31. reinforcing steel bars; 32. waterproof cloth; 33. a side wing; 34. a tray; 35. a protective net; 36. bending the pipe; 37. a storage bin; 38. a supporting plate; 39. a coarse filter plate; 40. fine filter plates; 41. a sealing gasket; 42. an end plate; 43. a pull handle; 44. a funnel; 45. activated carbon; 46. filtering sand; 47. a storage tank; 48. a water tap; 49. a guard board; 50. a through hole; 51. a ring barrel; 52. a through port; 53. a rubber ring; 54. a push rod; 55. a force-bearing plate; 56. a disturbance plate; 57. a plug; 58. a support lug; 59. and (5) connecting ropes.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and are, for example, "connected," whether fixedly, detachably, or integrally; is a mechanical connection and also an electrical connection; is directly connected, also indirectly connected through an intermediate medium, and is the communication between the two components. The specific meaning of the above terms in the present invention is understood in detail by those of ordinary skill in the art.

Referring to fig. 1, 2 and 5, an embodiment of the present invention provides: the utility model provides an electric vehicle charging device based on positive and negative pulse circuit and application method thereof, including charging pile main body 1, front guard plate 2 is installed in the front of charging pile main body 1, display screen 3 is inlayed and installed in the front of front guard plate 2, button 4 is installed in the front of front guard plate 2, recess 5 is seted up on the right side of charging pile main body 1, one end of cable 8 is located the inboard of recess 5, the slot 6 of stepping down has been seted up on the right side of charging pile main body 1, slot 7 has been seted up on the right side of charging pile main body 1, and slot 7 is located the inboard of stepping down slot 6, charging gun 9 is installed to the other end of cable 8, the inboard of slot 7 is inserted to the charging end of charging gun 9, thermovent 10 has been seted up on the right side of charging pile main body 1, including the positive and negative pulse circuit that comprises dc-to-ac converter, transformer, rectifier and control circuit in charging pile main body 1, and can firmly support front guard plate 2, the front guard plate 2 can provide protection for the charging pile body 1, can firmly support the display screen 3 and the keys 4, people can start the charging pile body 1 by operating the keys 4 and taking the content displayed on the display screen 3 as a reference, and pull the charging gun 9 out of the inner side of the slot 7 and insert the charging gun 9 into a charging port of the electric vehicle, so that the charging pile body 1 can charge the electric vehicle by utilizing the positive and negative pulse circuit to match with the cable 8 and the charging gun 9, the groove 5 can provide a channel connected with the charging pile body 1 for the cable 8, the charging pile body 1 can provide an opening space for the yielding groove 6, the slot 7 can provide a placing space and a positioning function for the charging gun 9, the yielding groove 6 can be matched with the charging pile body 1 to provide protection for the charging gun 9, the heat dissipation port 10 can provide a circulation channel for air, the charging pile body 1 can perform heat dissipation work, the inverter converts the input alternating current into direct current with positive and negative pulses, generates positive and negative pulse signals in a certain voltage and current range by matching with the charging pile body 1 according to charging requirements and equipment requirements, and can effectively raise low voltage to required high voltage by the transformer through the positive and negative pulse signals by raising the output voltage of the charging pile body 1 to required charging voltage through the transformer, and converts the alternating current output by the transformer into stable direct current through the rectifier.

Referring to fig. 1, 3 and 4, an embodiment of the present invention is provided: the utility model provides an electric motor car charging device based on positive and negative pulse circuit and application method thereof, includes the receipts subassembly, the top of filling pile main part 1 is installed and is received the subassembly, is received the subassembly and is used for receiving the circuit, the right side of filling pile main part 1 is installed cable 8, it installs the eaves board 11 at filling pile main part 1 top to receive the subassembly including installing, the left side inner wall of eaves board 11 installs fagging 12, and fagging 12 is connected with filling pile main part 1's top, supporting plate 12's right side installs supporting plate 13, fixed plate 15 is installed on supporting plate 13's right side, fixed plate 15's front and back are installed connecting block 14 respectively, and two connecting blocks 14 are located filling pile main part 1's upper right corner, and two arc boards 16 are installed respectively to the right side of connecting block 14, two springs 17 are installed on the right side of supporting plate 12, and two springs 17 are located the inboard of two arc boards 16 respectively, and two bottom of springs 17 install the stub rope 18 respectively and the stub rope 19 and the top of 19 are connected with filling pile main part 1, two supporting plate 12's right side installs supporting plate 13, and two connecting blocks 19 are installed for two connecting blocks 21, and two connecting blocks 21 and two connecting blocks 25 are installed for connecting sleeve rings 25, and two connecting blocks 25 are installed for connecting pile main part 1, and two connecting sleeve rings 25 are installed for connecting sleeve rings 21 and 21, and two connecting sleeve rings 25 are installed for connecting sleeve 25, and two connecting sleeve rings 25 are installed for connecting sleeve 21 and two connecting sleeve rings 25 are installed for the cable 8, and the cable 8 are installed for the outside and the connecting sleeve 25, and the cable 8 is installed for the cable 21 and the connecting sleeve 21 and the cable is installed for the cable is installed and the cable is installed for the jack 21 to the jack bottom of the jack is installed and can to the jack a cable to the jack a jack to and can to the jack a jack to and to. The fixing plate 15 can firmly connect the two connecting blocks 14 with each other, the supporting plate 12 can firmly support the fixing plate 15 through the supporting plate 13, the arc plate 16 has a certain radian, the supporting and guiding functions can be provided for the spring 17, the spring 17 is prevented from being blocked at the corner of the right upper corner of the charging pile main body (1), when the charging is completed, a worker needs to lift the protective film 30 under the support of the supporting cover 29, and inserts the charging gun 9 into the inner side of the slot 7 through the abdicating groove 6 for storage, then the worker needs to pull the pull rope 23 towards two sides, the pull rope 23 stretches the elastic band 22 through the lantern rings 21, and the two lantern rings 21 respectively move towards the outer sides of the two cone barrels 24, the two lantern rings 21 and the elastic band 22 can respectively move towards the outer sides of the two supporting discs 25 by the inclined angles of the cone barrels 24, simultaneously, the two lantern rings 21 drive the short ropes 18 and the long ropes 19 to move downwards through the connecting plates 20 respectively, so that the short ropes 18 and the long ropes 19 stretch the two springs 17 under the action of external force and under the support of the supporting plates 12 and the guide of the arc plates 16, the lantern rings 21 and the elastic belts 22 can be placed on the inner sides of the positioning grooves 26, the positioning grooves 26 and the supporting plates 25 are matched to position the lantern rings 21 and the elastic belts 22, the lantern rings 21 and the elastic belts 22 are prevented from being separated from the supporting plates 25 under the action of natural force, then the two springs 17 shrink along the arc plates 16 by utilizing the reverse elasticity under the support of the supporting plates 12, and the connecting plates 20 are respectively driven upwards through the short ropes 18 and the long ropes 19 to bend the cable 8, and the cable 8S-shaped bending upwards is accommodated.

Referring to fig. 1 and 3, an embodiment of the present invention is provided: the utility model provides an electric vehicle charging device based on positive and negative pulse circuit and application method thereof, including receiving the subassembly, transparent plate 27 is installed in the front of eaves board 11, plastic cloth 28 is installed to the bottom of transparent plate 27, prop the lid 29 is installed to the back of plastic cloth 28, and prop the lid 29 and be located the top of stepping down groove 6, prop the right side of lid 29 and install protection film 30, prop the back of lid 29 and install reinforcing bar 31, waterproof cloth 32 is installed at the top of reinforcing bar 31, and the top of waterproof cloth 32 is connected with the bottom of eaves board 11, eaves board 11 can provide the support for transparent plate 27, transparent plate 27 can firmly support plastic cloth 28, plastic cloth 28 can provide the support for prop the lid 29, and prop the lid 29 can provide the support for protection film 30 and reinforcing bar 31, reinforcing bar 31 is used for prop waterproof cloth 32, can pass reinforcing bar 31 and remove the inboard of waterproof cloth 32 after cable 8S-shaped bending upwards is accomodate, the waterproof cloth 32 is used for providing protection for the cable 8, when the charging gun 9 is inserted into the inner side of the slot 7 and then moves between the supporting cover 29, the protective film 30 and the plastic cloth 28, the supporting cover 29, the protective film 30 and the plastic cloth 28 are matched for providing protection for the charging gun 9, when the weather rains, the vertically falling rainwater can be firstly intercepted by the cornice 11, the obliquely falling rainwater can be blocked by the transparent plate 27, the plastic cloth 28, the waterproof cloth 32 and the protective film 30, and the transparent plate 27, the waterproof cloth 32 and the protective film 30 are made of transparent materials, so that people can conveniently observe the conditions of the charging gun 9 and the cable 8, and meanwhile, the transparent plate 27, the plastic cloth 28, the waterproof cloth 32 and the protective film 30 are soft and can deform randomly under the action of external force, so that people can not be influenced to take and move the charging gun 9 and the cable 8.

Referring to fig. 1, 6 and 7, an embodiment of the present invention provides: the utility model provides an electric vehicle charging device based on positive and negative pulse circuit and application method thereof, including eaves board 11, two flank 33 are installed at the top of eaves board 11, tray 34 is installed in the left side of eaves board 11, tray 34 and the top interconnect of two flank 33 are installed and are protected net 35, four return bends 36 are installed in the back of tray 34, storage bin 37 is installed to the bottom of return bend 36, and storage bin 37 is located the back of filling pile main part 1, three layer board 38 is installed to the front inner wall of storage bin 37, coarse filter plate 39 and two thin filter plates 40 are installed respectively at the top of three layer board 38, coarse filter plate 39 is located the bottom of return bend 36, two thin filter plates 40 are located the bottom of coarse filter plate 39, end plate 42 is installed respectively at the back of coarse filter plate 39 and two thin filter plates 40, three sealing gasket 41 are installed in the back of storage bin 37, sealing gasket 41 is located the outside of end plate 42, pull handle 43 is installed at the back of end plate 42, the hopper 44 is installed on the inner side of the storage bin 37, the hopper 44 is positioned at the bottom of the fine filter plate 40, the activated carbon 45 is installed on the inner side of the hopper 44, the sand filter 46 is filled on the inner side of the hopper 44, the sand filter 46 is positioned at the top of the activated carbon 45, the storage tank 47 is installed on the right side of the storage bin 37, the water faucet 48 is installed on the right side of the storage tank 47 in a penetrating way, the protection plate 49 is installed on the top of the storage bin 37, the protection plate 49 is positioned at the top of the storage tank 47, the right side of the storage bin 37 and the left side of the storage tank 47 are provided with penetrating openings 50 in a penetrating way, the cornice 11 can provide support for the side wings 33, the side wings 33 and the cornice 11 have a certain inclination angle, and can be matched with the tray 34 to firmly support the protection net 35, the protection net 35 can provide penetrating channels for rainwater, and can intercept impurities, the tray 34 can firmly support the elbow 36 under the support of the cornice 11, and can provide collecting space for rainwater and channels into the elbow 36, the staff can pass the top that the protective screen 35 falls to the eaves board 11 under the effect of gravity at rainy day's rainwater, simultaneously great impurity can intercept at the top of protective screen 35, then the rainwater can then flow to the left side under the inclination effect of eaves board 11 and the direction effect of flank 33, make the inboard of the rainwater that intercepts flow to tray 34 collect, then the rainwater can then flow to the inboard of return bend 36 under the support of tray 34, and fall to the top of coarse filter plate 39 along the top of return bend 36 under the effect of gravity, make coarse filter plate 39 carry out the coarse filtration to the rainwater under the support of end plate 42 and layer board 38, then the rainwater can pass the top of coarse filter plate 39 and drop to fine filter plate 40, make fine filter plate 40 carry out the further meticulous filtration to the rainwater under the support of end plate 42 and layer board 38, the rainwater after the filtration then can pass the top of fine filter plate 40, make filter sand 46 provide the infiltration passageway for the rainwater under the support of funnel 44, and further impurity in the rainwater infiltration process, finally, the rainwater can soak in active carbon 45, make the active carbon 45 pass the top of the filter plate 45 and then the filter plate 48 and take place the filter plate 48 and store the rainwater that can be used by the people's that the water-washing the storehouse and store the filter plate 37 according to the fact that the water is required to the inside the filter plate 37 is opened, the filter tank is washed in the aspect is opened, the aspect is stored in the aspect of the water-washing the filter basin is washed the water-down the filter 1 is washed the storehouse is filled up.

Referring to fig. 1 and 7, an embodiment of the present invention is provided: the electric vehicle charging device based on positive and negative pulse circuits and the application method thereof comprise a storage tank 47, wherein a ring barrel 51 is arranged at the back of the storage tank 47, the ring barrel 51 is positioned at the outer side of a charging pile main body 1 and a front guard plate 2, a through hole 52 is formed in the back of the storage tank 47 through the ring barrel 51, a plurality of rubber rings 53 are arranged on the left side of the front and the back of the ring barrel 51 in a penetrating manner, a push rod 54 is arranged in the rubber rings 53 in a penetrating manner, the push rod 54 is tightly attached to the rubber rings 53, a stress plate 55 is arranged at one end of the push rod 54 far away from the ring barrel 51, a disturbance plate 56 is arranged at the other end of the push rod 54, the disturbance plate 56 is positioned at the inner side of the ring barrel 51, a plurality of plugs 57 are arranged at the top of the ring barrel 51 in a penetrating manner, lugs 58 are arranged at the top of the plugs 57, connecting ropes 59 are arranged at the outer sides of the lugs 58, the connecting ropes 59 are connected with the top of the ring barrel 51, the storage tank 47 can be matched with the charging pile main body 1 and the front guard plate 2 under the support of a storage bin 37 to firmly support the ring barrel 51, the annular barrel 51 is used for storing collected rainwater in cooperation with the storage tank 47, water stored in the storage tank 47 flows to the inner side of the annular barrel 51 through the through hole 52 for storage, when an electric vehicle collides towards the direction of the charging pile main body 1, the stress plate 55 can bear external force first, the push rod 54 is pushed under the action of the external force and supported by the rubber ring 53, the push rod 54 pushes the rubber ring 53 to deform, the disturbance plate 56 is pushed to the central position of the annular barrel 51 through the rubber ring 53, the disturbance plate 56 is enabled to disturb the water stored at the inner side of the annular barrel 51 under the action of the external force, the external force is conducted to the stored water, the water flows at the inner sides of the annular barrel 51 and the storage tank 47 to consume the external force, when the collision force is overlarge, the stress plate 55 is pushed by the external force to contact with the outer side of the annular barrel 51, the external force is conducted to the annular barrel 51, then the annular barrel 51 is deformed under the action of the external force, and the external force is conducted to the water and air in the annular barrel 51, so that the water and air in the annular barrel 51 impact upwards to jack up the plug 57 under the action of the external force, the plug 57 is separated from the annular barrel 51 to open the opening, and then the water and air can carry the external force to pass through the opening opened by the plug 57 and be discharged to the outside, thereby realizing the purpose of buffering the impact force and providing protection for the charging pile main body 1.

Further, the use method of the electric vehicle charging device is as follows:

s1, firstly, a worker needs to firmly install a charging pile body 1 at a working place and electrifies the charging pile body 1, so that the charging pile body 1 forms a positive and negative pulse circuit by utilizing an inverter, a transformer, a rectifier and a control circuit which are arranged in the charging pile body 1 in a mutually matched manner, and the positive and negative pulse circuit is used for converting direct current into a pulse form;

s2, then a worker needs to pull out the charging gun 9 from the slot 7 and move out of the abdication slot 6, meanwhile, the cable 8 is bent to move the charging gun 9, so that the charging gun 9 is connected with a charging port of the electric vehicle, and then the charging pile body 1 is started by taking the content displayed on the display screen 3 as a reference operation key 4, so that the charging pile body 1 alternately provides electric energy for the battery of the electric vehicle by utilizing positive and negative pulses and the positive and negative pulses formed by the positive and negative pulse circuits through the cable 8 and the charging gun 9;

s3, when the charging is completed, a worker needs to lift the protective film 30 under the support of the supporting cover 29, and inserts the charging gun 9 into the inner side of the slot 7 through the yielding groove 6 for storage, then the worker needs to pull the pull rope 23 to enable the pull rope 23 to stretch the elastic band 22 through the lantern ring 21 and respectively move the two lantern rings 21 to the outer sides of the two conical drums 24, the two lantern rings 21 and the elastic band 22 can respectively move to the outer sides of the two supporting disks 25 by utilizing the inclination angle of the conical drums 24, meanwhile, the two lantern rings 21 respectively drive the short ropes 18 and the long ropes 19 to move downwards through the connecting plates 20, the short ropes 18 and the long ropes 19 are led to stretch the two springs 17 under the action of external force and under the support of the supporting plates 12 and the guide of the arc plates 16, the lantern rings 21 and the elastic band 22 can be placed to the inner sides of the positioning grooves 26, the lantern rings 21 and the elastic band 22 are matched with the supporting disks 25, the lantern rings 21 and the elastic band 22 are prevented from being separated from the supporting disks 25 under the action of natural force, and then the two springs 17 can respectively drive the short ropes 18 and the long ropes 19 to move upwards through the connecting plates 16 under the supporting of the supporting plates 12, and the connecting plates 20 are bent upwards through the short ropes 18 and the connecting plates 20, and the connecting plates 20 are bent upwards, and the long ropes 20 are folded upwards through the connecting plates 8 and the connecting plates 20 are bent upwards;

S4, when the cable 8 is folded upwards and stored, the cable can pass through the reinforcing steel bars 31 and move to the inner side of the waterproof cloth 32, so that the waterproof cloth 32 provides protection for the cable 8, when the charging gun 9 is inserted into the inner side of the slot 7, the cable can move between the supporting cover 29, the protective film 30 and the plastic cloth 28, the supporting cover 29, the protective film 30 and the plastic cloth 28 are matched to provide protection for the charging gun 9, when the weather rains, the vertically fallen rainwater can be firstly intercepted by the cornice 11, the obliquely fallen rainwater can be blocked by the transparent plate 27, the plastic cloth 28, the waterproof cloth 32 and the protective film 30, and the transparent plate 27, the waterproof cloth 32 and the protective film 30 are made of transparent materials, so that people can conveniently observe the conditions of the charging gun 9 and the cable 8, and meanwhile, the transparent plate 27, the plastic cloth 28, the waterproof cloth 32 and the protective film 30 are soft and can be deformed randomly under the action of external force, so that people can not be influenced to take the mobile charging gun 9 and the cable 8;

s5, the rainwater of staff in rainy days can pass the protection network 35 and fall to the top of eaves board 11 under the effect of gravity, simultaneously great impurity can intercept at the top of protection network 35, then the rainwater can then flow to the left side under the inclination effect of eaves board 11 and the direction effect of flank 33, make the inboard that intercepts rainwater flows to tray 34 collect, then the rainwater can then flow to the inboard of return bend 36 under the support of tray 34, and pass the top of storehouse 37 along return bend 36 under the effect of gravity and fall to the top of coarse filter plate 39, make coarse filter plate 39 carry out the coarse filtration to the rainwater under the support of end plate 42 and layer board 38, then the rainwater can pass the top of coarse filter plate 39 whereabouts to fine filter plate 40, make fine filter plate 40 carry out further meticulous filtration to the rainwater under the support of end plate 42 and layer board 38, the rainwater after the filtration then can pass the top of fine filter plate 40, make filter sand 46 provide the infiltration passageway for the rainwater under the support of funnel 44, and can further intercept the impurity in the infiltration process, finally can the rainwater soaks in active carbon 45, make the active carbon 45 pass the top of the storehouse 37 and can be used for the people who stores the rainwater in the aspect of the storehouse and store the filter plate 47 according to the water-like, the filter plug ' S that the filter plate 45 is opened, can be used for the people ' S that the water-washed the filter plug is washed in the aspect of the storehouse is opened to store the filter water is washed in the aspect of the filter plug ' S1.

Further, in the step S5, the method further includes the following steps:

s51, water stored in the storage tank 47 can flow to the inner side of the annular barrel 51 through the through hole 52 for storage, when an electric vehicle collides towards the charging pile main body 1, the force bearing plate 55 can bear external force at first, and pushes the push rod 54 under the action of the external force and the support of the rubber ring 53, so that the push rod 54 pushes the rubber ring 53 to deform, and pushes the disturbance plate 56 to the central position of the annular barrel 51 through the rubber ring 53, the disturbance plate 56 disturbs the water stored at the inner side of the annular barrel 51 under the action of the external force, and conducts the external force to the stored water, so that the water flows at the inner sides of the annular barrel 51 and the storage tank 47 to consume the external force, when the impact force is overlarge, the force bearing plate 55 is pushed by the external force to contact with the outer side of the annular barrel 51, and conducts the external force to the annular barrel 51, then the annular barrel 51 deforms under the action of the external force, and conducts the external force to the water and the air in the annular barrel 51, so that the water and the air in the annular barrel 51 upwards impact the plug 57 under the action of the external force, the external force is separated from the annular barrel 51 to open the opening, the disturbance plate 56 under the action of the external force, the external force of the annular barrel is carried by the disturbance plate 56, and the water and the external force to the opening through the opening 57, the opening of the external force is discharged to the annular barrel 1, so that the charging pile main body is realized.

Working principle: before the device is used, whether the device has a problem of influencing the use or not is checked, when a worker needs to use the device, the key 4 is operated firstly to start the charging pile body 1 by taking the content displayed on the display screen 3 as a reference, the charging gun 9 is pulled out from the inner side of the slot 7 and inserted into a charging port of the electric vehicle to be charged to charge the electric vehicle, after the charging is finished, the charging gun 9 is inserted into the inner side of the slot 7, the collecting assembly S-shaped collecting cable 8 is utilized to reach the inner side of the waterproof cloth 32, the cornice 11, the transparent plate 27, the plastic cloth 28, the supporting cover 29, the protective film 30 and the reinforcing steel bars 31 are mutually matched to provide rain shielding protection for the charging gun 9 and the cable 8, meanwhile, the cornice 11, the tray 34 and the bent tube 36 are matched to collect rainwater, the coarse filter plate 39, the fine filter plate 40, the sand filter 46 and the activated carbon 45 are utilized to filter and deodorize and are stored in the inner sides of the storage tank 47, the storage bin 37 and the ring barrel 51, and the water stored in the inner sides of the ring barrel 51 are mutually matched to provide anti-collision protection for the charging pile body 1 when an external force is impacted.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.

Claims

1. Electric motor car charging device based on positive negative pulse circuit, including charging stake main part (1), its characterized in that: the top of the charging pile main body (1) is provided with a collecting assembly which is used for collecting wires;

the utility model discloses a charging pile, including charging pile main part (1), cable (8) are installed on the right side of charging pile main part (1), the eaves board (11) at charging pile main part (1) top are installed including installing to the subassembly, fagging (12) are installed to the left side inner wall of eaves board (11), and fagging (12) are connected with the top of charging pile main part (1), back rest (13) are installed on the right side of fagging (12), fixed board (15) are installed on the right side of back rest (13), connecting block (14) are installed respectively to the front and the back of fixed board (15), two connecting blocks (14) are located the upper right corner of charging pile main part (1), two arc board (16) are installed respectively on the right side of connecting block (14), two springs (17) are installed on the right side of fagging (12), and two springs (17) are located the inboard of two arc boards (16) respectively, and short rope (18) and long rope (19) are installed respectively to the bottom of fagging (17), and long rope (19) are installed respectively, and the bottom of connecting block (19) are located the bottom (21) are installed to the bottom (21) and are installed to the bottom (21) are installed to the bottom (20), a positioning groove (26) is formed in the outer side of the supporting disc (25);

Two cone barrels (24) are arranged on the outer side of the cable (8), and the two cone barrels (24) are respectively connected with the backs of the two supporting discs (25);

the transparent plate (27) is arranged on the front surface of the cornice (11), the plastic cloth (28) is arranged at the bottom of the transparent plate (27), the supporting cover (29) is arranged at the back of the plastic cloth (28), the supporting cover (29) is positioned at the top of the abdication groove (6), the protective film (30) is arranged on the right side of the supporting cover (29), the reinforcing steel bars (31) are arranged at the back of the supporting cover (29), the waterproof cloth (32) is arranged at the top of the reinforcing steel bars (31), and the top of the waterproof cloth (32) is connected with the bottom of the cornice (11);

the lantern ring (21) is positioned on the outer side of the cable (8);

two side wings (33) are installed at the top of eaves board (11), tray (34) is installed at the left side of eaves board (11), protection net (35) is installed at the top interconnect of tray (34) and two side wings (33), four return bends (36) are installed in the back run-through of tray (34), storage bin (37) are installed at the bottom of return bends (36), and storage bin (37) are located the back of electric pile main part (1), three layer board (38) are installed to the front inner wall of storage bin (37), coarse filter plate (39) and two fine filter plates (40) are installed respectively at the top of three layer board (38), coarse filter plate (39) are located the bottom of return bends (36), two fine filter plates (40) are located the bottom of coarse filter plate (39), end plate (42) are installed respectively at the back of coarse filter plate (39) and two fine filter plates (40), three sealing pads (41) are installed in the back run-through of storage bin (37), sealing pad (41) are located the outside of end plate (42), coarse filter plate (43) are installed at the back of end plate (42), filter plate (44) are installed at the back funnel (44) and filter plate (44) are installed at the bottom (44) of filter plate (44) are located at the inside (44), the sand filter (46) is positioned at the top of the activated carbon (45), the storage tank (47) is arranged on the right side of the storage bin (37), the water tap (48) is arranged on the right side of the storage tank (47) in a penetrating way, the protection plate (49) is arranged at the top of the storage bin (37), the protection plate (49) is positioned at the top of the storage tank (47), and the penetrating openings (50) are arranged on the right side of the storage bin (37) and the left side of the storage tank (47) in a penetrating way;

The utility model discloses a charging pile comprises a storage tank (47), including a front guard plate (2), a back, a ring barrel (51), a plurality of rubber rings (53) are installed in the back of storage tank (47), ring barrel (51) is located the outside of charging pile main part (1) and front guard plate (2), opening (52) have been seted up in the back of storage tank (47), a plurality of rubber rings (53) are installed in front left side and back of ring barrel (51) run through, push rod (54) are installed in the inside run-through of rubber rings (53), and push rod (54) closely laminate with rubber rings (53), atress board (55) are installed to the one end that ring barrel (51) was kept away from to push rod (54), disturbance board (56) are installed to the other end of push rod (54), and disturbance board (56) are located the inboard of ring barrel (51), a plurality of plugs (57) are installed in the top of ring barrel (51) run through, lug (58) are installed at the top of plug (57), connecting rope (59) are connected with the top of ring barrel (51).

2. The electric vehicle charging device based on positive and negative pulse circuits according to claim 1, wherein: front backplate (2) are installed in the front of charging pile main part (1), display screen (3) are installed in front mosaic of front backplate (2), button (4) are installed in front of front backplate (2), recess (5) are seted up on the right side of charging pile main part (1), the one end of cable (8) is located the inboard of recess (5), recess (6) have been seted up on the right side of charging pile main part (1), slot (7) have been seted up on the right side of charging pile main part (1), and slot (7) are located the inboard of recess (6) of stepping down, charging rifle (9) are installed to the other end of cable (8), the inboard of slot (7) is inserted to the charging end of charging rifle (9), thermovent (10) have been seted up on the right side of charging pile main part (1).

3. The method for using the electric vehicle charging device based on the positive and negative pulse circuit according to any one of claims 1-2, wherein the method for using the electric vehicle charging device comprises the following steps:

s1, firstly, a worker needs to firmly install a charging pile main body (1) at a working place and electrifies the charging pile main body (1), so that the charging pile main body (1) is matched with an inverter, a transformer, a rectifier and a control circuit which are arranged in the charging pile main body to form a positive pulse circuit and a negative pulse circuit, and the positive pulse circuit and the negative pulse circuit are used for converting direct current into a pulse form;

s2, then a worker needs to pull out the charging gun (9) from the slot (7) and move out of the abdication slot (6), meanwhile, the cable (8) is bent to move the charging gun (9), the charging gun (9) is connected with a charging port of the electric vehicle, and then the charging pile body (1) is started by taking the content displayed on the display screen (3) as a reference operation key (4), so that the charging pile body (1) alternately provides electric energy for the battery of the electric vehicle by using positive and negative pulses through the cable (8) and the charging gun (9);

s3, when the charging is completed, a worker needs to lift the protective film (30) under the support of the supporting cover (29), and insert the charging gun (9) into the inner side of the slot (7) through the yielding groove (6), then the worker needs to pull the pull rope (23) to two sides, so that the pull rope (23) stretches the elastic belt (22) through the sleeve ring (21), and the two sleeve rings (21) can move towards the outer sides of the two cone cylinders (24) respectively, the two sleeve rings (21) and the elastic belt (22) can move towards the outer sides of the two supporting plates (25) respectively by utilizing the inclination angle of the cone cylinders (24), meanwhile, the two sleeve rings (21) can drive the short ropes (18) and the long ropes (19) to move downwards through the connecting plates (20), so that the short ropes (18) and the long ropes (19) stretch the two springs (17) under the action of external force and the support of the supporting plates (12) and the guidance of the arc plates (16), the sleeve rings (21) and the elastic belt (22) can be placed into the inner sides of the positioning grooves (26), so that the sleeve rings (21) and the elastic belt (22) can be separated from the positioning plates (25) under the action of the natural force, then the two springs (17) are contracted along the arc plate (16) by utilizing the reverse elasticity under the support of the supporting plate (12), and the connecting plate (20) is driven to move upwards by the short ropes (18) and the long ropes (19) respectively, so that the connecting plate (20) pulls the cable (8) upwards to bend through the two lantern rings (21) and the supporting plate (25), and the cable (8) is folded in an S-shaped manner to move upwards for storage;

S4, when the cable (8) is folded in an S-shaped manner and moves upwards to be stored, the cable can pass through the reinforcing steel bar (31) to move to the inner side of the waterproof cloth (32), so that the waterproof cloth (32) provides protection for the cable (8), when the charging gun (9) is inserted into the inner side of the slot (7), the cable can move to the position between the supporting cover (29), the protective film (30) and the plastic cloth (28), the supporting cover (29), the protective film (30) and the plastic cloth (28) are matched to provide protection for the charging gun (9), when the weather rains, the vertically fallen rainwater can be firstly intercepted by the cornice (11), and the obliquely fallen rainwater can be blocked by the transparent plate (27), the plastic cloth (28), the waterproof cloth (32) and the protective film (30), and the transparent plate (27), the waterproof cloth (32) and the protective film (30) are made of transparent materials, so that people can observe the conditions of the charging gun (9) and the cable (8), and the transparent plate (27), the plastic cloth (28), the waterproof cloth (32) and the protective film (30) are soft, and the waterproof cloth (30) can be deformed at any time, so that the charging gun (9) can not be taken out under the action of the weather;

s5, the rainwater of a worker in a rainy day can pass through the protective net (35) to fall to the top of the cornice (11) under the action of gravity, meanwhile, larger impurities can be intercepted at the top of the protective net (35), then the rainwater can flow leftwards under the action of the inclination angle of the cornice (11) and the guiding action of the side wings (33), the intercepted rainwater flows to the inner side of the tray (34) to be collected, then the rainwater can flow to the inner side of the elbow pipe (36) under the support of the tray (34), and falls to the top of the coarse filter plate (39) along the top of the elbow pipe (36) under the action of gravity through the top of the storage bin (37), the coarse filter plate (39) carries out coarse filtration on the rainwater under the support of the end plate (42) and the supporting plate (38), then the rainwater can pass through the top of the coarse filter plate (39) to carry out fine filtration on the rainwater under the support of the end plate (42) and the side wings (33), the filtered rainwater can pass through the fine filter plate (40) to flow to the inner side of the elbow pipe (36), the rainwater can permeate to the filter plate (46), the rainwater can permeate the filter plate (46) to the active carbon (45) to absorb the impurity in the active carbon, and finally the rainwater can permeate the active carbon (45 in the active carbon filter dust, the active carbon can permeate the rainwater in the filter dust to the active carbon (45, then rainwater can pass through the activated carbon (45) and the funnel (44) under the action of gravity and fall to the inner side of the bottom wall of the storage bin (37) for storage, meanwhile, the stored rainwater can pass through the through hole (50) and enter the inner side of the storage tank (47) for storage, and people can rotate the faucet (48) to open the channel according to the actual situation, so that the water stored in the inner side of the storage tank (47) is discharged for people to wash vehicles or the dirt on the outer surface of the charging pile main body (1).

4. The method for using the electric vehicle charging device based on the positive and negative pulse circuit according to claim 3, wherein the method comprises the following steps: in the step S5, the method further includes the following steps:

s51, the water stored in storage tank (47) can pass through opening (52) and circulate to the inboard of ring bucket (51) and store, atress board (55) can bear external force at first when electric motor car direction impact towards filling electric pile main part (1), and promote push rod (54) under the support of external force and rubber circle (53), make push rod (54) promote rubber circle (53) deformation, and pass rubber circle (53) and promote disturbance board (56) to the central point department of ring bucket (51), make disturbance board (56) disturbance ring bucket (51) inboard water of storing under the external force, and with the conduction of external force for the water of storing, make water flow outside ring bucket (51) and storage tank (47), when the impact force is too big, atress board (55) then can be by external force promotion with the outside contact of ring bucket (51), with external force conduction for ring bucket (51), then ring bucket (51) can be out of shape under the external force, and with external force conduction give its inside water and air, make ring bucket (51) inside water and air jack-up under the external force and the impact, open up plug (57) and open up the opening is realized in order to realize that the plug (57) is opened to the opening is filled with the water.