Charging wire detectable device of new energy automobile charging pile

Abstract

The invention relates to the technical field of charging line detection, in particular to a charging line detectable device of a new energy automobile charging pile, which comprises a charging pile unit and a detection unit, wherein the charging pile unit comprises a charging pile body, a display screen is arranged on the charging pile body, a winding disc is arranged on the inner wall of the charging pile body, and a charging wire is arranged on the inner side of the winding disc; the detection unit comprises a rotating sleeve arranged on the side face of the charging pile body in a penetrating mode, the rotating sleeve is rotationally connected with the penetrating position, and a connecting shell is fixedly installed at the end, located on the outer side of the charging pile body, of the rotating sleeve. Compared with the prior art, when the charging gun is pulled out and pulled, the sliding shell is driven to move, the detection rod makes contact with the outer wall of the charging wire, the connecting shell and the sliding shell rotate to drive the detection rod to conduct detection, when scratches and protrusions occur, the detection rod slides to make the conducting strip make contact with the conducting frame, the alarm gives an early warning, the abrasion of the charging wire can be found in time, and a user can conveniently check and process the charging wire.

Description

Technical Field

[0001] The present invention relates to the technical field of charging cable detection, and particularly to a device for detecting a charging cable of a new energy vehicle charging pile. Background Art

[0002] A new energy vehicle charging pile is a dedicated power device for charging electric vehicles. It directly transmits the alternating current of the power grid to the charging interface of the electric vehicle, and the in-vehicle charger built into the electric vehicle converts the alternating current into direct current to charge the battery pack. When charging is connected, the battery management system identifies the connection of the charging gun by detecting the line potential. When there is no fault, a communication loop is formed. After the charging pile checks that it has no fault, it turns on the AC contactor to supply power to the in-vehicle charger.

[0003] After retrieval, a Chinese patent with the publication number CN109991374A discloses a device for detecting a charging cable of a new energy vehicle charging pile, including a charging gun, a winding part, a driving part and a lifting part. The charging gun is connected to the charging mechanism of the charging pile through a cable. After the charging end of the charging gun is inserted into the jack provided on the pile body, it is electrically connected to the power supply. The winding part is rotationally connected to the lifting part. When detecting the cable, the charging end of the charging gun is inserted into the jack, and at the same time, the driving part drives the winding part to wind the cable on the surface of the winding part, and then the driving part drives the lifting part to immerse the cable completely into the acid-base solution. The condition of the cable is judged by the change in the pH value of the acid-base solution. When the surface insulator of the cable is damaged by friction with the ground, it can be detected in time, avoiding the occurrence of electric shock accidents and ensuring the safety of users. However, when this solution is actually used, there are still the following deficiencies:

[0004] The above device infers the degree of damage of the cable by immersing the cable in the acid-base solution and relying on the change in pH value. However, as a device that provides high-voltage and large-current charging services for new energy vehicles, the operating voltage of the charging pile is usually relatively high, and some fast-charging piles can even reach hundreds of volts. When the cable is immersed in the acid-base solution, the liquid itself has conductivity, and it is very likely to cause a short-circuit phenomenon under the action of high voltage, which will cause serious damage to the detection equipment and may also endanger the personal safety of surrounding personnel. Moreover, the acid-base solution is corrosive. Once it leaks, it will corrode the surrounding facilities and environment, further increasing the safety risk and the subsequent cleaning cost.

[0005] Therefore, the present application provides a device for detecting a charging cable of a new energy vehicle charging pile. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a device for detecting a charging cable of a new energy vehicle charging pile to solve the problem of potential safety hazards in liquid detection.

[0007] For the above purposes, the present invention provides a detection device for a charging cable of a new energy vehicle charging pile, including a charging pile unit and a detection unit;

[0008] Among them, the charging pile unit includes a charging pile body, a display screen is arranged on the charging pile body, a winding disc is arranged on the inner wall of the charging pile body, and a charging cable is arranged inside the winding disc;

[0009] Among them, the detection unit includes a rotating sleeve penetrating through the side surface of the charging pile body, and the rotating sleeve is rotationally connected to the penetrating part. One end of the rotating sleeve located outside the charging pile body is fixedly installed with a connecting shell, a sliding shell is arranged at the end of the connecting shell, and one end of the charging cable far away from the winding disc sequentially passes through the rotating sleeve, the connecting shell and the sliding shell and is fixedly installed with a charging gun;

[0010] Among them, a connecting structure is arranged between the connecting shell and the sliding shell, and a detection component is arranged on the connecting shell and the sliding shell;

[0011] Among them, a driving structure corresponding to the charging cable is arranged on the inner wall of the charging pile body, and a testing component is arranged at a position below the rotating sleeve on the side surface of the charging pile body.

[0012] Preferably, the connecting structure includes eight fixing plates arranged in a circular array on the outer walls of the connecting shell and the sliding shell respectively. Two opposite fixing plates among the four fixing plates on the outer wall of the connecting shell are fixedly installed with guide rods on their side surfaces, and the guide rods pass through the side surfaces of the opposite fixing plates. One end of the guide rod far away from the fixing plate is fixedly installed with a mounting plate, and a return spring is sleeved on the end of the guide rod, and both ends of the return spring are fixedly connected to the fixing plate and the mounting plate respectively.

[0013] Preferably, magnetic sheets are fixedly installed on the opposite side surfaces of the remaining four fixing plates among the eight fixing plates, magnetic rings are fixedly installed on the side surfaces of the sliding shell and the charging gun respectively, and the opposite magnetic poles of two opposite magnetic sheets among the four magnetic sheets and two magnetic rings are opposite.

[0014] Preferably, the detection component includes a cleaning ring plate fixedly installed between the connecting shell and the sliding shell. Four support rods arranged in a circular array are hinged on the outer walls of the connecting shell and the sliding shell respectively. A connecting plate is hinged between the ends of two support rods at the same position among the eight support rods. A detection rod penetrates through the side surface of the connecting plate and is slidably connected to the penetrating part. A conductive sheet is fixedly installed at the end of the detection rod, and a support spring is sleeved on the end of the detection rod, and both ends of the support spring are fixedly connected to the conductive sheet and the connecting plate respectively. A fixing rod is fixedly installed on the side surface of the connecting plate, and a conductive frame adapted to the conductive sheet is fixedly installed at one end of the fixing rod far away from the connecting plate.

[0015] Preferably, the outer wall of the cleaning ring plate is provided with four through openings distributed in a circular array and corresponding to the detection rods, and the outer walls of the connecting shell and the sliding shell are both provided with a plurality of ash-permeable holes distributed in a circular array.

[0016] Preferably, the driving structure includes two support plates symmetrically fixedly mounted on the inner wall of the charging pile body corresponding to the rotating sleeve, the ends of the two support plates away from the charging pile body are rotatably mounted with shafts, the top ends of the two shafts are fixedly mounted with guide wheels corresponding to the charging lines, a worm is rotatably mounted on the top surface of one of the two support plates, a worm wheel engaged with the worm is fixedly mounted on the outer wall of the rotating sleeve, and the shaft and the worm are connected by a driven wheel and a synchronous belt transmission.

[0017] Preferably, the outer wall of the guide wheel is provided with anti-slip grooves.

[0018] Preferably, the test assembly includes a support plate fixedly mounted on the side of the charging pile body, a guide opening is provided on the top surface of the support plate, a guide plate is slidably mounted on the inner wall of the guide opening, a support platform is fixedly mounted on the end of the guide plate, a detection groove is provided on the top surface of the support platform, and a placement structure is provided on the inner wall of the detection groove.

[0019] Preferably, the placement structure includes a detection sleeve slidably mounted on the inner wall of the detection groove, the inner wall of the detection groove is symmetrically provided with two guide grooves, the outer wall of the detection sleeve is symmetrically fixed with two slides corresponding to the guide grooves, an elastic airbag is fixedly mounted between the sides opposite to the slides and the guide grooves, an air inlet pipe is passed through one end of the elastic airbag, an air outlet pipe is passed through the end of the elastic airbag away from the air inlet pipe, and the air outlet pipe is connected to the inner side of the detection sleeve.

[0020] Preferably, one-way valves with opposite flow directions are installed on the inner walls of the air inlet pipe and the air outlet pipe.

[0021] Beneficial effects of the present invention:

[0022] 1. The charging cable of this new energy vehicle charging pile can be detected by setting a detection rod and a conductive sheet. When the charging gun is pulled out, the sliding shell is driven to move, and the detection rod contacts the outer wall of the charging cable. The connecting shell and the sliding shell rotate to drive the detection rod for detection. When encountering scratches or bumps, the detection rod slides to make the conductive sheet contact the conductive frame, and the alarm is sounded. The wear of the charging cable can be detected in time, which is convenient for users to verify and handle.

[0023] 2. The charging cable detection device of this new energy vehicle charging pile can, by setting up guide wheels and cleaning ring plates, when the charging gun returns to its position, the connecting shell and the sliding shell are attracted and fixed to each other. The cleaning ring plate between them folds and contacts the outer wall of the charging cable. During the winding process of the charging cable, the cleaning ring plate is driven to rotate by transmission structures such as guide wheels, and the outer wall dust and impurities of the charging cable are cleaned by the bristles. At the same time, all the exposed parts of the charging cable can enter the sliding shell for protection, extending the service life of the charging cable.

[0024] 3. The charging cable detection device of this new energy vehicle charging pile can, by setting up detection sockets and elastic air bags, when the charging gun is inserted and placed in the detection socket, it is fixed by magnetic force connection through a magnetic ring. When pulled out, the elastic air bag is compressed to inflate and eject the gun head, which is convenient for pulling out. At the same time, the wear condition of the gun head can be judged according to the moving distance of the detection socket, problems can be discovered in time, the sealing performance can be prevented from decreasing, and the charging safety can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 2 It is a partial sectional structural schematic diagram of the charging pile body of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the connecting shell and the sliding shell of the present invention Figure 1 ;

[0029] Figure 4 It is a structural schematic diagram of the connecting shell and the sliding shell of the present invention Figure 2 ;

[0030] Figure 5 It is a partial sectional structural schematic diagram of the connecting shell and the sliding shell of the present invention;

[0031] Figure 6 It is Figure 5 the enlarged structural schematic diagram at position A in

[0032] Figure 7 It is Figure 2 the enlarged structural schematic diagram at position B in

[0033] Figure 8 It is a structural schematic diagram of the support plate of the present invention;

[0034] Figure 9Schematic diagram of the decomposition structure of the detection socket and the support platform for the present invention;

[0035] Figure 10 is Figure 9 Enlarged structure diagram at position C in

[0036] The markings in the figure are:

[0037] 11. Charging pile body; 12. Display screen; 13. Reel; 14. Charging cable; 15. Charging gun; 21. Rotating sleeve; 22. Connecting shell; 23. Fixed plate; 24. Guide rod; 25. Sliding shell; 26. Mounting plate; 27. Return spring; 28. Magnetic sheet; 29. Magnetic ring; 31. Cleaning ring plate; 32. Support rod; 33. Connecting plate; 34. Detection rod; 35. Conductive sheet; 36. Support spring; 37. Fixed rod; 38. Conductive frame; 39. Through hole; 310. Translucent gray hole; 41. Support plate; 42. Shaft rod; 43. Guide wheel; 44. Worm; 45. Worm gear; 51. Support plate; 52. Guide port; 53. Guide plate; 54. Support platform; 55. Detection groove; 61. Detection socket; 62. Guide groove; 63. Slide plate; 64. Elastic airbag; 65. Intake pipe; 66. Exhaust pipe. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0039] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meaning understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] As Figure 1 , Figure 2 shown, a detection device for a charging cable of a new energy vehicle charging pile includes a charging pile unit and a detection unit;

[0041] Among them, the charging pile unit includes a charging pile body 11, a display screen 12 is arranged on the charging pile body 11, a winding disc 13 is arranged on the inner wall of the charging pile body 11, and a charging cable 14 is arranged inside the winding disc 13;

[0042] After the user operates through the display screen 12, the charging cable 14 can be directly pulled. When the charging cable 14 is pulled, the winding disc 13 can be driven to rotate, thereby realizing the unwinding of the charging cable 14. After use, the charging cable 14 can be put back. At this time, the winding disc 13 can rotate in reverse to wind up the charging cable 14.

[0043] Such as Figure 3 、 Figure 4 、 Figure 5 As shown, the detection unit includes a rotating sleeve 21 penetrating through the side of the charging pile body 11, and the rotating sleeve 21 is rotatably connected to the penetrating part. One end of the rotating sleeve 21 located outside the charging pile body 11 is fixedly installed with a connection shell 22. A sliding shell 25 is arranged at the end of the connection shell 22. One end of the charging cable 14 away from the winding disc 13 sequentially passes through the rotating sleeve 21, the connection shell 22 and the sliding shell 25 and is fixedly installed with a charging gun 15; A connection structure is arranged between the connection shell 22 and the sliding shell 25. The connection structure includes eight fixing plates 23 arranged in a circular array on the outer walls of the connection shell 22 and the sliding shell 25 respectively. On the side surfaces of two opposite fixing plates 23 among the four fixing plates 23 on the outer wall of the connection shell 22, guide rods 24 are fixedly installed, and the guide rods 24 pass through the side surfaces of the opposite fixing plates 23. One end of the guide rod 24 away from the fixing plate 23 is fixedly installed with a mounting plate 26. A return spring 27 is sleeved on the end of the guide rod 24, and both ends of the return spring 27 are fixedly connected to the fixing plate 23 and the mounting plate 26 respectively. Opposite side surfaces of the remaining four fixing plates 23 among the eight fixing plates 23 are fixedly installed with magnetic sheets 28. Magnetic rings 29 are fixedly installed on the side surfaces of the sliding shell 25 and the charging gun 15. Opposite magnetic poles of two opposite magnetic sheets 28 among the four magnetic sheets 28 are opposite to those of the two magnetic rings 29;

[0044] When the charging gun 15 is put back after use, at this time, the connection shell 22 and the sliding shell 25 are in a state of approaching each other. The opposite magnetic poles of the magnetic sheets 28 on the fixing plates 23 are opposite. Therefore, under the action of the attracting magnetic force, the sliding shell 25 and the connection shell 22 can approach and fix each other. When the charging gun 15 is pulled out for use, the charging gun 15 can be pulled. Under the action of the attracting magnetic force of the magnetic ring 29, when the charging gun 15 is pulled, the sliding shell 25 can be pulled, so that the fixing plate 23 on the sliding shell 25 can slide along the guide rod 24, and the sliding shell 25 is separated from the connection shell 22.

[0045] Such as Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown in the figure, a detection component is provided on the connection shell 22 and the sliding shell 25. The detection component includes a cleaning ring plate 31 fixedly installed between the connection shell 22 and the sliding shell 25. Four support rods 32 distributed in an annular array are hinged on the outer walls of the connection shell 22 and the sliding shell 25. A connecting plate 33 is hinged between the ends of two support rods 32 located at the same position among the eight support rods 32. A detection rod 34 is arranged through the side of the connecting plate 33, and the detection rod 34 is slidably connected to the through position. A conductive sheet 35 is fixedly installed at the end of the detection rod 34. A support spring 36 is sleeved on the end of the detection rod 34, and the two ends of the support spring 36 are respectively fixedly connected to the conductive sheet 35 and the connecting plate 33. A fixing rod 37 is fixedly installed on the side of the connecting plate 33. A conductive frame 38 adapted to the conductive sheet 35 is fixedly installed at the end of the fixing rod 37 away from the connecting plate 33. Four through holes 39 corresponding to the detection rods 34 are formed in an annular array on the outer wall of the cleaning ring plate 31. A plurality of ash-permeable holes 310 are formed in an annular array on the outer walls of the connection shell 22 and the sliding shell 25;

[0046] When the connecting shell 22 and the sliding shell 25 are close to each other, the cleaning ring plate 31 between them can be folded along the crease thereon, and then be in a V-shaped state. Moreover, the inner wall of the cleaning ring plate 31 can contact with the outer wall of the charging cable 14. The inner wall of the cleaning ring plate 31 is provided with bristles. When the connecting shell 22 and the sliding shell 25 rotate, the cleaning ring plate 31 therebetween can clean the outer wall of the charging cable 14 through the bristles, so that the dust and impurities adhered to the outer wall of the charging cable 14 can be cleaned off, and the cleaned dust and impurities can be discharged along the dust-permeable holes 310. When the sliding shell 25 is separated from the connecting shell 22, the cleaning ring plate 31 can be propped up to separate from the charging cable 14, and can drive the support rod 32 to rotate. When the support rod 32 rotates, it can pull the connecting plate 33, so that the connecting plate 33 moves towards the direction close to the charging cable 14. At the same time, the detection rod 34 on the connecting plate 33 can move along with the connecting plate 33 through the through hole 39 to contact with the outer wall of the charging cable 14. As the charging cable 14 moves, when the connecting shell 22 and the sliding shell 25 rotate, they can drive the detection rod 34. When the detection rod 34 moves along the outer wall of the charging cable 14, it can detect the wear condition of the outer wall of the charging cable 14. If scratches and protrusions are encountered, at this time, the detection rod 34 can slide along the connecting plate 33 and drive the conductive sheet 35 to contact with the conductive frame 38 on the fixed rod 37. The conductive sheet 35 and the conductive frame 38 can be connected to the alarm through wires. After they contact, the alarm can emit a sound for early warning, so as to notify the user to observe and verify, realizing the detection of the charging cable 14. The working principle and connection method of the alarm used here are mature existing technologies, which will not be elaborated too much here and are not shown in the figure either. After the charging gun 15 is used and before it is retracted again, the user can push the sliding shell 25. At this time, the sliding shell 25 can approach the connecting shell 22 along the guide rod 24, the support rod 32 rotates in the reverse direction, the detection rod 34 separates from the charging cable 14, and the cleaning ring plate 31 is folded again to contact with the outer wall of the charging cable 14, and then the operation of retracting the charging cable 14 can be started.

[0047] As Figure 7 shown, a driving structure corresponding to the charging cable 14 is provided on the inner wall of the charging pile body 11. The driving structure includes two support plates 41 symmetrically and fixedly installed on the inner wall of the charging pile body 11 corresponding to the rotating sleeve 21. At one end of the two support plates 41 away from the charging pile body 11, a shaft rod 42 is rotatably installed. At the top of the two shaft rods 42, a guide wheel 43 corresponding to the charging cable 14 is fixedly installed. The outer wall of the guide wheel 43 is provided with anti-slip lines. On the top surface of one of the two support plates 41, a worm 44 is rotatably installed. A worm gear 45 meshing with the worm 44 is fixedly sleeved on the outer wall of the rotating sleeve 21. The shaft rod 42 and the worm 44 are connected by a driven wheel and a synchronous belt.

[0048] During the winding process of the charging cable 14, since the guide wheel 43 is in contact with the outer wall of the charging cable 14, and the anti-slip pattern on the outer wall of the guide wheel 43 increases the friction between the charging cable 14 and it, when the charging cable 14 moves, it can drive the guide wheel 43 to rotate. When the guide wheel 43 rotates, it can drive the worm 44 to rotate through the shaft rod 42, the driven wheel, and the synchronous belt. The worm 44 meshes with the worm gear 45 on the outer wall of the rotating sleeve 21, and then can drive the rotating sleeve 21, the connecting shell 22, and the sliding shell 25 to rotate.

[0049] As Figures 8 to 10 shown, a test assembly is provided at a position below the rotating sleeve 21 on the side of the charging pile body 11. The test assembly includes a support plate 51 fixedly installed on the side of the charging pile body 11. A guide opening 52 is formed on the top surface of the support plate 51. A guide plate 53 is slidably installed on the inner wall of the guide opening 52. A support platform 54 is fixedly installed at the end of the guide plate 53. A detection groove 55 is formed on the top surface of the support platform 54. A placement structure is provided on the inner wall of the detection groove 55;

[0050] The placement structure includes a detection insert sleeve 61 slidably installed on the inner wall of the detection groove 55. Two guide grooves 62 are symmetrically formed on the inner wall of the detection groove 55. Two sliding plates 63 corresponding to the guide grooves 62 are symmetrically fixedly installed on the outer wall of the detection insert sleeve 61. An elastic airbag 64 is fixedly installed between the opposite sides of the sliding plate 63 and the guide groove 62. An air inlet pipe 65 is penetrated through one end of the elastic airbag 64. An air outlet pipe 66 is penetrated through the end of the elastic airbag 64 far from the air inlet pipe 65, and the air outlet pipe 66 communicates with the inside of the detection insert sleeve 61. One-way valves with opposite flow directions are installed on the inner walls of the air inlet pipe 65 and the air outlet pipe 66;

[0051] After the charging gun 15 returns to its original position, the gun head part of the charging gun 15 can be inserted into the detection socket 61 to achieve placement. After the insertion is completed, since the magnetic poles of the sliding shell 25 and the magnetic ring 29 on the charging gun 15 are opposite, under the action of the attracting magnetic force, the guide plate 53 can slide along the guide port 52, making the two magnetic rings 29 attract each other. At this time, the exposed part of the charging cable 14 can all enter the sliding shell 25 to achieve protection. When the charging gun 15 is used again, it can be pulled out of the detection socket 61. During the pulling-out process, since the charging gun 15 and the detection socket 61 are in a snap connection, the detection socket 61 can be driven to slide outward along the detection groove 55, and at the same time, the sliding plate 63 can be driven to slide along the guide groove 62. When the sliding plate 63 slides, it can compress the elastic airbag 64. Since one-way valves with opposite flow directions are installed in the air inlet pipe 65 and the air outlet pipe 66, when the elastic airbag 64 is compressed, the gas inside it can enter the detection socket 61 through the air outlet pipe 66. After the gas is filled between the gun head of the charging gun 15 and the detection socket 61, the air pressure inside can increase. Therefore, under the action of the air pressure, the gun head of the charging gun 15 can be ejected from the detection socket 61, which is convenient for pulling out. At the same time, if the gun head of the charging gun 15 is worn due to several insertions and extractions, the friction force between it and the detection socket 61 will decrease. Therefore, the moving distance of the detection socket 61 in the detection groove 55 will change. When the staff detects, they can test the wear condition of the gun head of the charging gun 15 by observing the moving distance of the detection socket 61, so as to find it in time and avoid the sealing performance between the gun head of the charging gun 15 and the charging port from decreasing due to serious wear. After the charging gun 15 is pulled out of the detection socket 61, at this time, under the action of the elasticity of the elastic airbag 64 itself, the sliding plate 63 and the detection socket 61 can be driven to reset, and when the elastic airbag 64 extends and resets, it can inhale air through the air inlet pipe 65 for reuse.

[0052] When the technical solution provided by the present invention is in use, after the user operates through the display screen 12, the charging gun 15 can be directly pulled. When the charging gun 15 is pulled, the winding disc 13 can be driven to rotate through the charging cable 14, thereby realizing the unwinding of the charging cable 14. After use, the charging gun 15 can be put back. At this time, the winding disc 13 can rotate in reverse to wind up the charging cable 14. When the charging gun 15 is put back after use, the connecting shell 22 and the sliding shell 25 are in a state of approaching each other. The magnetic poles of the magnetic pieces 28 on the fixing plate 23 are opposite to each other. Therefore, under the action of the attracting magnetic force, the sliding shell 25 and the connecting shell 22 can approach and fix each other. When the connecting shell 22 and the sliding shell 25 approach each other, the cleaning ring plate 31 therebetween can be folded along the crease thereon, and thus is in a V-shaped state. And the inner wall of the cleaning ring plate 31 can contact the outer wall of the charging cable 14. The inner wall of the cleaning ring plate 31 is provided with bristles. At the same time, during the winding process of the charging cable 14, since the guide wheel 43 is in contact with the outer wall of the charging cable 14, and the anti-slip lines on the outer wall of the guide wheel 43 increase the friction between the charging cable 14 and it, the charging cable 14 can drive the guide wheel 43 to rotate when moving. When the guide wheel 43 rotates, the worm 44 can be driven to rotate through the shaft rod 42, the driven wheel, and the synchronous belt. The worm 44 meshes with the worm gear 45 on the outer wall of the rotating sleeve 21, and thus can drive the rotating sleeve 21, the connecting shell 22, and the sliding shell 25 to rotate. When the connecting shell 22 and the sliding shell 25 rotate, the cleaning ring plate 31 therebetween can clean the outer wall of the charging cable 14 through the bristles, so that the dust and impurities adhering to the outer wall of the charging cable 14 can be cleaned off, and the cleaned dust and impurities can be discharged along the ash-permeating holes 310.

[0053] After the charging gun 15 returns to its position, the gun head part of the charging gun 15 can be inserted into the detection socket 61 to achieve placement. After the insertion is completed, since the magnetic poles of the sliding shell 25 and the magnetic ring 29 on the charging gun 15 are opposite, under the action of the attracting magnetic force, the guide plate 53 can slide along the guide port 52, causing the two magnetic rings 29 to attract each other. At this time, the exposed part of the charging cable 14 can all enter the sliding shell 25 to achieve protection. When the charging gun 15 is used again, it can be pulled out of the detection socket 61. During the pulling-out process, since the charging gun 15 and the detection socket 61 are in a snap connection, the detection socket 61 can be driven to slide outward along the detection groove 55, and at the same time, the sliding plate 63 can be driven to slide along the guide groove 62. When the sliding plate 63 slides, it can compress the elastic airbag 64. Since one-way valves with opposite flow directions are installed in the air inlet pipe 65 and the air outlet pipe 66, when the elastic airbag 64 is compressed, the gas inside it can enter the detection socket 61 through the air outlet pipe 66. After the gas is filled between the gun head of the charging gun 15 and the detection socket 61, the air pressure inside can increase. Therefore, under the action of the air pressure, the gun head of the charging gun 15 can be ejected from the detection socket 61, which is convenient for pulling out. At the same time, if the gun head of the charging gun 15 is worn due to several insertions and extractions, the friction between it and the detection socket 61 will decrease. Therefore, the moving distance of the detection socket 61 in the detection groove 55 will change. When the staff conducts inspections, they can test the wear condition of the gun head of the charging gun 15 by observing the moving distance of the detection socket 61, so as to discover it in time and avoid a decrease in the sealing performance between the gun head of the charging gun 15 and the charging port due to severe wear. After the charging gun 15 is pulled out of the detection socket 61, at this time, under the action of the elasticity of the elastic airbag 64 itself, the sliding plate 63 and the detection socket 61 can be driven to reset, and when the elastic airbag 64 stretches and resets, it can inhale through the air inlet pipe 65 for reuse;

[0054] After the charging gun 15 is pulled out to detect the socket 61, the charging gun 15 can be pulled. Under the action of the attracting magnetic force of the magnetic ring 29, when the charging gun 15 is pulled, the sliding shell 25 can be pulled, so that the fixing plate 23 on the sliding shell 25 can slide along the guide rod 24. When the sliding shell 25 is separated from the connecting shell 22, the cleaning ring plate 31 can be lifted and separated from the charging cable 14, and the support rod 32 can be driven to rotate. When the support rod 32 rotates, the connecting plate 33 can be pulled, so that the connecting plate 33 moves in the direction close to the charging cable 14. At the same time, the detection rod 34 on the connecting plate 33 can move with the connecting plate 33 through the through hole 39 and contact the outer wall of the charging cable 14. As the charging cable 14 moves, when the connecting shell 22 and the sliding shell 25 rotate, the detection rod 34 can be driven. When the detection rod 34 moves along the outer wall of the charging cable 14, the wear condition of the outer wall of the charging cable 14 can be detected. If scratches and protrusions are encountered, at this time, the detection rod 34 can slide along the connecting plate 33 and drive the conductive sheet 35 to contact the conductive frame 38 on the fixed rod 37. The conductive sheet 35 and the conductive frame 38 can be connected to the alarm through a wire. After the two are in contact, the alarm can emit a sound for early warning, so as to notify the user to observe and verify, realizing the detection of the charging cable 14. The working principle and connection method of the alarm used here are mature existing technologies and will not be elaborated too much here, nor are they shown in the figure; after the charging gun 15 is used and before it is retracted again, the user can push the sliding shell 25. At this time, the sliding shell 25 can approach the connecting shell 22 along the guide rod 24, the support rod 32 rotates in the reverse direction, the detection rod 34 is separated from the charging cable 14, and the cleaning ring plate 31 is folded again to contact the outer wall of the charging cable 14, and then the operation of retracting the charging cable 14 can be started.

[0055] Those of ordinary skill in the art should understand that the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0056] Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A detection device for a charging cable of a new energy vehicle charging pile, characterized in that, It includes a charging pile unit and a detection unit; Among them, the charging pile unit includes a charging pile body (11), a display screen (12) is arranged on the charging pile body (11), a winding disc (13) is arranged on the inner wall of the charging pile body (11), and a charging cable (14) is arranged inside the winding disc (13); Among them, the detection unit includes a rotating sleeve (21) penetrating through the side surface of the charging pile body (11), and the rotating sleeve (21) is rotatably connected to the penetrating position. One end of the rotating sleeve (21) located outside the charging pile body (11) is fixedly installed with a connecting shell (22). A sliding shell (25) is arranged at the end of the connecting shell (22). One end of the charging cable (14) away from the winding disc (13) sequentially passes through the rotating sleeve (21), the connecting shell (22) and the sliding shell (25) and is fixedly installed with a charging gun (15); Among them, a connecting structure is arranged between the connecting shell (22) and the sliding shell (25), and a detection component is arranged on the connecting shell (22) and the sliding shell (25); Among them, a driving structure corresponding to the charging cable (14) is arranged on the inner wall of the charging pile body (11), and a testing component is arranged at a position below the rotating sleeve (21) on the side surface of the charging pile body (11).

2. The charging line detection device of a new energy vehicle charging pile according to claim 1, characterized in that, The connecting structure includes eight fixing plates (23) arranged in an annular array and fixedly installed on the outer walls of the connecting shell (22) and the sliding shell (25). Two opposite fixing plates (23) on the four fixing plates (23) on the outer wall of the connecting shell (22) are fixedly installed with guide rods (24) on their side surfaces, and the guide rods (24) pass through the side surfaces of the opposite fixing plates (23). One end of the guide rod (24) away from the fixing plate (23) is fixedly installed with a mounting plate (26). A return spring (27) is sleeved on the end of the guide rod (24), and both ends of the return spring (27) are fixedly connected to the fixing plate (23) and the mounting plate (26) respectively.

3. The charging line detection device for a new energy vehicle charging pile according to claim 2, characterized in that, Magnetic sheets (28) are fixedly installed on the opposite side surfaces of the remaining four fixing plates (23) among the eight fixing plates (23). Magnetic rings (29) are fixedly installed on the side surfaces of the sliding shell (25) and the charging gun (15). The opposite magnetic poles of two opposite magnetic sheets (28) among the four magnetic sheets (28) and two magnetic rings (29) are opposite.

4. The charging wire detection device of a new energy vehicle charging pile according to claim 3, characterized in that, The detection component includes a cleaning ring plate (31) fixedly installed between the connection shell (22) and the sliding shell (25). Four support rods (32) distributed in a circular array are hinged to the outer walls of both the connection shell (22) and the sliding shell (25). Connecting plates (33) are hinged between the ends of two support rods (32) located at the same position among the eight support rods (32). A detection rod (34) is disposed through the side surface of the connecting plate (33), and the detection rod (34) is slidably connected to the penetration position. A conductive sheet (35) is fixedly installed at the end of the detection rod (34). A support spring (36) is sleeved on the end of the detection rod (34), and both ends of the support spring (36) are fixedly connected to the conductive sheet (35) and the connecting plate (33) respectively. A fixing rod (37) is fixedly installed on the side surface of the connecting plate (33), and a conductive frame (38) adapted to the conductive sheet (35) is fixedly installed at the end of the fixing rod (37) away from the connecting plate (33).

5. The charging wire detection device for a new energy vehicle charging pile according to claim 4, characterized in that, Four through holes (39) corresponding to the detection rods (34) and distributed in a circular array are formed in the outer wall of the cleaning ring plate (31), and a plurality of ash-permeable holes (310) distributed in a circular array are formed in the outer walls of both the connection shell (22) and the sliding shell (25).

6. The charging line detection device for a new energy vehicle charging pile according to claim 1, characterized in that, The driving structure includes two support plates (41) symmetrically and fixedly installed on the inner wall of the charging pile body (11) corresponding to the rotating sleeve (21). Shaft rods (42) are rotatably installed at the ends of both support plates (41) away from the charging pile body (11). Guide wheels (43) corresponding to the charging cable (14) are fixedly installed at the tops of both shaft rods (42). A worm (44) is rotatably installed on the top surface of one of the two support plates (41). A worm wheel (45) meshing with the worm (44) is fixedly sleeved on the outer wall of the rotating sleeve (21). The shaft rod (42) and the worm (44) are connected by a driven wheel and a synchronous belt.

7. The charging line detection device of a new energy vehicle charging pile according to claim 6, characterized in that, Anti-slip patterns are provided on the outer wall of the guide wheel (43).

8. The charging line detection device for a new energy vehicle charging pile according to claim 1, characterized in that, The testing component includes a support plate (51) fixedly installed on the side surface of the charging pile body (11). A guiding port (52) is formed in the top surface of the support plate (51). A guiding plate (53) is slidably installed on the inner wall of the guiding port (52). A support platform (54) is fixedly installed at the end of the guiding plate (53). A detection groove (55) is formed in the top surface of the support platform (54), and a placing structure is provided on the inner wall of the detection groove (55).

9. The charging wire detection device of a new energy vehicle charging pile according to claim 8, characterized in that, The placement structure includes a detection socket (61) slidably mounted on the inner wall of the detection groove (55). Two guiding grooves (62) are symmetrically formed on the inner wall of the detection groove (55). Two sliding plates (63) corresponding to the guiding grooves (62) are symmetrically and fixedly mounted on the outer wall of the detection socket (61). An elastic airbag (64) is fixedly mounted between the opposite sides of the sliding plate (63) and the guiding groove (62). An air inlet pipe (65) is disposed through one end of the elastic airbag (64). An air outlet pipe (66) is disposed through the end of the elastic airbag (64) away from the air inlet pipe (65), and the air outlet pipe (66) communicates with the inside of the detection socket (61).

10. The charging line detection device of a new energy vehicle charging pile according to claim 9, characterized in that, Check valves with opposite flow directions are installed on the inner walls of the air inlet pipe (65) and the air outlet pipe (66).

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