A new energy vehicle DC charging pile and use method thereof

Abstract

A new energy vehicle DC charging pile and a method for using the same belong to the field of charging piles. A groove is provided at the center of a circular plate, and the free end of a fixing rod is located in the groove. A coil spring is fixedly connected between the inner wall of the groove and the outer cylindrical surface of the fixing rod; a transmission device includes a rotating shaft; the side of the charging pile body is also connected to a rotating shaft through a bearing; a connecting cylinder is movably connected to the side of the charging pile body, and a groove meshing with a gear is provided on the outer cylindrical surface of the connecting cylinder, and a thread is provided on the inner wall of the connecting cylinder, and the connecting cylinder is connected to a ring through a thread. The present invention can not only reduce the erosion of the natural environment on the charging cable through a protective device, and effectively ensure the service life of the external insulating sleeve of the charging cable, but also can make the wound charging cable flow out of the gap through a movable device, thereby ensuring the effective heat dissipation of the charging cable that has just been used, and avoiding the heat of the charging cable located inside after the charging cable is wound. It cannot be dissipated, so that the temperature is high and the service life of the insulating sleeve is affected.

Description

Technical Field

[0001] The invention relates to a new energy vehicle DC charging pile and a use method thereof, belonging to the field of charging piles. Background Art

[0002] At present, most of the charging piles on the market are installed in basements or outdoor charging stations. Charging piles located in outdoor charging stations are exposed to the outdoors and are easily eroded by the natural environment, which leads to a reduction in the service life of the insulating sheath on the outer layer of the exposed charging cable and cracking, causing the internal wires to be exposed, posing a safety hazard. Therefore, it is necessary to improve them. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a new energy vehicle DC charging pile and a method for using the same.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] A new energy vehicle DC charging pile, comprising a charging pile body, a protective device, a charging line, a charging gun, a fixing rod, a transmission device and a movable device; the side of the charging pile body is fixedly connected with a fixing rod; the protective device comprises a fixing cylinder, a rotating cylinder and a circular plate; the fixing cylinder is fixedly connected to the side of the charging pile body; the rotating cylinder is connected to the inside of the fixing cylinder through a bearing, and a circular plate is fixedly connected to the inner wall of the rotating cylinder; a groove is provided in the center of the circular plate, and the free end of the fixing rod is located in the groove, and a coil spring is fixedly connected between the inner wall of the groove and the outer cylindrical surface of the fixing rod; the transmission device comprises a rotating shaft; the side of the charging pile body is also connected to a rotating shaft through a bearing, and a gear is fixedly connected to the rotating shaft; the inner wall of the rotating cylinder is provided with A tooth groove meshing with a gear; the movable device includes a linkage device; the linkage device includes a connecting tube, a circular ring, a limiting rod and a movable rod; the connecting tube is movably connected to the side of the charging pile body, and a groove meshing with the gear is provided on the outer circular surface of the connecting tube, a thread is provided on the inner wall of the connecting tube, and the connecting tube is connected to the circular ring through the thread; the limiting rod is fixedly connected to the inner circular surface of the circular ring; the free end of the limiting plate slides with the limiting groove on the side of the fixed rod; the side of the circular ring away from the charging pile body is also fixedly connected to a movable rod; the charging cable passes through the through hole inside the charging pile body and the circular hole on the limiting plate fixedly connected to the side of the fixed rod, and finally passes through the through hole on the circular plate, and the charging cable is fixedly connected to the charging gun.

[0006] A method for using a new energy vehicle DC charging pile, the method comprising the following steps:

[0007] Step 1: When charging, pull the charging gun so that the charging cable extends out of the protective device to an appropriate length, turn the rotating plate to clamp the charging cable, and then plug the charging gun into the car;

[0008] Step 2: After use, pull out the charging gun, then rotate the rotating plate in the opposite direction. Under the elastic force of the coil spring, the circular plate rotates and wraps the charging cable around the fixed rod and the movable rod to complete the recycling.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can not only reduce the erosion of the natural environment on the charging cable through the protective device, effectively ensuring the service life of the external insulating sleeve of the charging cable, but also can flow the wound charging cable out of the gap through the movable device, thereby ensuring the effective heat dissipation of the charging cable that has just been used, and avoiding the heat of the charging cable located inside the charging cable after the charging cable is wound. Cannot dissipate, causing the temperature to be high, affecting the service life of the insulating sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view of a new energy vehicle DC charging pile of the present invention;

[0011] Figure 2 It is a structural schematic diagram of a protective device for a DC charging pile of a new energy vehicle according to the present invention;

[0012] Figure 3 It is a cross-sectional view of a rotating drum of a new energy vehicle DC charging pile of the present invention;

[0013] Figure 4 It is a side view of a circular plate of a DC charging pile for new energy vehicles of the present invention;

[0014] Figure 5 It is a structural schematic diagram of a rotating plate and a fixed plate of a new energy vehicle DC charging pile of the present invention clamping a charging line;

[0015] Figure 6 It is a structural schematic diagram of a handle of a DC charging pile for a new energy vehicle of the present invention;

[0016] Figure 7 It is a structural schematic diagram of a fixing rod of a DC charging pile for a new energy vehicle according to the present invention;

[0017] Figure 8 It is a structural schematic diagram of a movable device of a DC charging pile for new energy vehicles of the present invention;

[0018] Fig. 9 It is a structural schematic diagram of a linkage device of a DC charging pile for a new energy vehicle of the present invention;

[0019] Fig.10 It is a schematic diagram of the position of a connection ring of a DC charging pile for a new energy vehicle of the present invention. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Specific implementation method 1: Figure 1-10 As shown, this embodiment records a new energy vehicle DC charging pile, including a charging pile body 1, a protective device 2, a charging line 3, a charging gun 4, a fixed rod 6, a transmission device 7 and a movable device 8; the side of the charging pile body 1 is fixedly connected with a fixed rod 6; the protective device 2 includes a fixed cylinder 21, a rotating cylinder 23 and a circular plate 211; the fixed cylinder 21 is fixedly connected to the side of the charging pile body 1; the rotating cylinder 23 is connected to the inside of the fixed cylinder 21 through a bearing, and a circular plate 211 is fixedly connected to the inner wall of the rotating cylinder 23; a groove 28 is provided in the center of the circular plate 211, and the free end of the fixed rod 6 is located in the groove 28, and a coil spring 29 is fixedly connected between the inner wall of the groove 28 and the outer cylindrical surface of the fixed rod 6; the transmission device 7 includes a rotating shaft 71; the side of the charging pile body 1 is also connected to the rotating shaft 71 through a bearing, and a gear 72 is fixedly connected to the rotating shaft 71; the inner wall of the rotating cylinder 23 is provided with a gear 72 connected to the gear 72 meshing with the tooth groove; the movable device 8 includes a linkage device 81; the linkage device 81 includes a connecting tube 811, a ring 812, a limiting rod 813 and a movable rod 814; the connecting tube 811 is movably connected to the side of the charging pile body 1, and the outer circular surface of the connecting tube 811 is provided with a groove meshing with the gear 72, the inner wall of the connecting tube 811 is provided with a thread, and the connecting tube 811 is connected to the ring 812 through the thread; the limiting rod 813 is fixedly connected to the inner circular surface of the ring 812; the free end of the limiting plate 813 is slidably matched with the limiting groove 61 on the side of the fixed rod 6; the side of the ring 812 away from the charging pile body 1 is also fixedly connected with a movable rod 814; the charging line 3 passes through the through hole 11 from the inside of the charging pile body 1 and the circular hole on the limiting plate 62 fixedly connected to the side of the fixed rod 6, and finally passes through the through hole 25 on the circular plate 211, and the charging line 3 is fixedly connected to the charging gun 4. The protective shell 2 protects the charging cable 3, reduces the erosion of the insulation layer of the charging cable 3 by the natural environment, and ensures its service life. During use, the charging cable 3 is rolled up through the cooperation between the transmission device 7, the movable device 8 and the drum 23 to reduce the occupied space. After rolling up, the heat generated by the charging cable 3 during the charging process can be effectively dissipated, avoiding the accumulation of heat in the charging cable 3 and causing excessive heat in the charging cable 3.

[0022] When the circular plate 211 rotates clockwise, the charging cable 3 is wound around the fixed rod 6 and the movable rod 814, and the length of the charging cable 3 exposed outside the circular plate 211 is shortened. When the circular plate 211 rotates counterclockwise, the length of the charging cable 3 exposed outside the circular plate 211 is increased. When the circular plate 211 rotates clockwise, the coil spring 29 is deformed.

[0023] The gear 72 is fixedly connected with a plurality of concentric transmission gears 73 with a reduced diameter at one time; the linkage device 81 is provided with a plurality of them, and a connecting ring 82 is provided between two adjacent linkage devices 81; the inner circumference of the connecting ring 82 is fixedly connected with the corresponding connecting cylinder 811, and the outer circumference of the connecting ring 82 is connected with the corresponding connecting ring 82 through a bearing; the inner diameter of the connecting cylinder 811 of the plurality of linkage devices 81 gradually increases from one end close to the charging pile body 1 to the other end, and the connecting cylinder 811 is meshed with the transmission gear 73 at the corresponding position. The inner diameter of the connecting cylinder 811 between the plurality of linkage devices 81 is different, and the pitch on the inner wall is also different, so as to ensure that during the rotation of the transmission device 7, the movable rods 814 on the plurality of linkage devices 81 contact the circular plate 211 in batches, thereby ensuring that the charging line 3 can be respectively wound on the corresponding movable rod 814, so that there are more gaps between the wound charging lines 3, which is more convenient for heat dissipation.

[0024] The outer wall of the fixing cylinder 21 is provided with a plurality of vent holes 22; the rotating cylinder 23 is provided with an opening 27 connected with the vent holes 22. This facilitates gas replacement between the inside and outside of the protective device 2, thereby facilitating heat dissipation of the charging cable 3 after use.

[0025] The circular plate 211 is provided with a connection hole 210, and a U-shaped handle 5 is provided in the connection hole 210 to slide with the handle 5; both ends of the handle 5 are provided with sockets 51 to slide with the corresponding movable rod 814. After use, the user can drive the circular plate 211 to rotate through the handle 5, thereby driving the relative position of the circular plate 211 and the movable rod 814 to change, so that the socket 71 can be inserted into the corresponding movable rod 814, preventing the circular plate 211 from rotating without human operation.

[0026] The through hole 25 is fixedly connected with a fixing plate 24, and the inner wall of the through hole 25 is also provided with a thread connected with the rotating plate 26; the fixing plate 24 and the rotating plate 26 are both provided with eccentric holes, and the charging line 3 passes through the holes on the fixing plate 24 and the rotating plate 26. By rotating the rotating plate 26, the hole on the rotating plate 26 and the hole on the fixing plate 24 clamp the charging line 3.

[0027] At least four movable rods 814 are disposed on the ring 812 of each linkage device 81. The movable rods 814 are provided with a plurality of movable rods 814 so that the charging wires 3 can be wound around the movable rods 814 to be close to a circle, thereby ensuring that sufficient gaps are left between the charging wires 3.

[0028] The pitch of the thread on the inner wall of each connecting tube 811 is different.

[0029] The minimum distance between the movable rods 814 on two adjacent linkage devices 81 is greater than the diameter of the charging cable 3 .

[0030] A method for using a new energy vehicle DC charging pile, the method comprising the following steps:

[0031] Step 1: When charging, pull the charging gun 4 to extend the charging line 3 out of the protective device 2 to an appropriate length, rotate the rotating plate 26 to clamp the charging line 3, and then plug the charging gun 4 into the car;

[0032] Step 2: After use, pull out the charging gun 4, then rotate the rotating plate 26 in the opposite direction. Under the elastic force of the coil spring 29, the circular plate 211 rotates to wrap the charging line 3 around the fixed rod 6 and the movable rod 814, and the recycling is completed.

[0033] The working principle of the present invention is as follows: when the device is used for charging, the charging gun 4 is pulled. Since the charging line 3 is wound inside the protective device 2, the charging line 3 will drive the circular plate 211 to rotate when the charging gun 4 is pulled. The rotation of the circular plate 211 drives the coil spring 29 to deform, and increases the length exposed outside the protective device 2 until it is stretched to a sufficient length and then stops stretching. Then, the rotating plate 26 is rotated to drive the eccentric hole thereon to rotate until the hole on the rotating plate 26 and the hole on the fixed plate 24 clamp the charging line 3, so that the length of the charging line 3 inside the protective device 2 is fixed, and the circular plate 211 will not be driven to rotate under the action of the coil spring 29, thereby causing the length of the charging line 3 exposed outside the protective device 2 to gradually shorten. Then, the charging gun 4 is inserted into the car to start charging.

[0034] When charging is completed, the charging gun 4 is pulled out, and then the rotating plate 26 is rotated to loosen the charging line 3. The circular plate 211 is driven to rotate under the action of the coil spring 29. The rotation of the circular plate 211 drives the through hole 25 thereon to rotate, and then drives the charging line 3 located in the through hole 25 to rotate together. Since the fixing rod 6 coincides with the center line of the circular plate 211, and the charging line 3 passes through the limiting plate 62 to fix one end, the charging line 3 is wound around the fixing rod 6 during the process of the circular plate 211 driving the charging line 3 to rotate through the through hole 25. During the rotation of the circular plate 211, the circular plate 211 also drives the rotating drum 23 to rotate, the rotating drum 23 drives the gear 72 to rotate, and the gear 72 drives the transmission gear 73 and the connecting cylinder 811 to rotate, and the connecting cylinder 811 is connected. The connecting tube 811 drives the corresponding circular ring 812 to rotate through the thread, and then drives the movable rod 814 to move in the direction of the circular plate 211, so that the free end of the movable rod 814 gradually moves and finally contacts the circular plate 211. During this process, the charging cable 3 continues to rotate with the circular plate 211. Therefore, when the movable rod 814 is close to the circular plate 211, the charging cable 3 will be wound around the movable rod 814, so that a gap is left between the charging cable 3 wound around the fixed rod 6 and the movable rod 814, so that the heat generated by the charging cable 3 during the charging process can be dissipated, thereby accelerating the heat dissipation of the charging cable 3 and preventing the charging cable 3 located inside from being difficult to dissipate heat after winding, and being in a high temperature state for a long time, resulting in aging and cracking of the external insulation layer thereof.

[0035] Since the pitch of the internal thread of the connecting tube 811 of each linkage device 81 is different, the movable rod 814 on each linkage device 81 approaches the circular plate 211 in batches along with the corresponding connecting tube 811; the movable rod 814 that is closer to the fixed rod 6 takes a shorter time to approach the circular plate 211, so that the charging cable 3 is wrapped around the movable rods 814 of multiple linkage devices 81, further increasing the gap between the charging cables 3 and ensuring the heat dissipation effect.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms of assembly without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new energy vehicle DC charging pile, characterized by: The charging pile comprises a charging pile body (1), a protective device (2), a charging line (3), a charging gun (4), a fixing rod (6), a transmission device (7) and a movable device (8); the fixing rod (6) is fixedly connected to the side of the charging pile body (1); the protective device (2) comprises a fixing cylinder (21), a rotating cylinder (23) and a circular plate (211); the fixing cylinder (21) is fixedly connected to the side of the charging pile body (1); the rotating cylinder (23) is connected to the inside of the fixing cylinder (21) through a bearing, and is fixed on the inner wall of the rotating cylinder (23). A circular plate (211) is connected; a groove (28) is provided at the center of the circular plate (211), the free end of the fixing rod (6) is located in the groove (28), and a coil spring (29) is fixedly connected between the inner wall of the groove (28) and the outer cylindrical surface of the fixing rod (6); the transmission device (7) comprises a rotating shaft (71); the side of the charging pile body (1) is also connected to the rotating shaft (71) via a bearing, and a gear (72) is fixedly connected to the rotating shaft (71); a tooth groove meshing with the gear (72) is provided on the inner wall of the rotating cylinder (23); The movable device (8) comprises a linkage device (81); the linkage device (81) comprises a connecting tube (811), a circular ring (812), a limiting rod (813) and a movable rod (814); the connecting tube (811) is movably connected to the side of the charging pile body (1); a groove meshing with the gear (72) is provided on the outer circumferential surface of the connecting tube (811); a thread is provided on the inner wall of the connecting tube (811); and the connecting tube (811) is connected to the circular ring (812) via the thread; and a gear (72) is fixedly connected to the inner circumferential surface of the circular ring (812). A limit rod (813) is provided; the free end of the limit rod (813) is slidably matched with the limit groove (61) on the side of the fixed rod (6); the side of the circular ring (812) away from the charging pile body (1) is also fixedly connected to a movable rod (814); the charging line (3) passes through the through hole (11) inside the charging pile body (1) and the circular hole on the limit plate (62) fixedly connected to the side of the fixed rod (6), and finally passes through the through hole (25) on the circular plate (211), and the charging line (3) is fixedly connected to the charging gun (4); When the circular plate (211) rotates clockwise, the charging cable (3) is driven to be wound around the fixed rod (6) and the movable rod (814), and the length of the charging cable (3) exposed outside the circular plate (211) is shortened; when the circular plate (211) rotates counterclockwise, the length of the charging cable (3) exposed outside the circular plate (211) is increased; The gear (72) is fixedly connected to a plurality of concentric transmission gears (73) of decreasing diameters in sequence; the linkage devices (81) are provided with a plurality of them, and a connecting ring (82) is provided between two adjacent linkage devices (81); the inner circumferential surface of the connecting ring (82) is fixedly connected to the corresponding connecting cylinder (811), and the outer circumferential surface of the connecting ring (82) is connected to the corresponding connecting ring (82) via a bearing; the inner diameter of the connecting cylinders (811) on the plurality of linkage devices (81) gradually increases from one end close to the charging pile body (1) to the other end, and the connecting cylinders (811) are all meshed with the transmission gears (73) at corresponding positions; The outer wall of the fixed cylinder (21) is provided with a plurality of ventilation holes (22); the rotating cylinder (23) is provided with openings (27) communicating with the ventilation holes (22); The circular plate (211) is provided with a connection hole (210), and a U-shaped handle (5) is provided in the connection hole (210) and is slidably matched with the connection hole (210); both ends of the handle (5) are provided with sockets (51) that are slidably matched with corresponding movable rods (814).

2. A new energy vehicle DC charging pile according to claim 1, characterized in that: A fixing plate (24) is fixedly connected in the through hole (25), and a thread connected to the rotating plate (26) is also provided on the inner wall of the through hole (25); the fixing plate (24) and the rotating plate (26) are both provided with eccentric holes, and the charging line (3) passes through the holes on the fixing plate (24) and the rotating plate (26).

3. A new energy vehicle DC charging pile according to claim 2, characterized in that: At least four movable rods (814) are provided on the circular ring (812) on each linkage device (81).

4. A new energy vehicle DC charging pile according to claim 3, characterized in that: The pitch of the thread on the inner wall of each connecting tube (811) is different.

5. A new energy vehicle DC charging pile according to claim 4, characterized in that: The minimum distance between the movable rods (814) on two adjacent linkage devices (81) is greater than the diameter of the charging cable (3).

6. The method for using a DC charging pile for a new energy vehicle according to claim 5, characterized in that: The method of use comprises the following steps: Step 1: When charging, pull the charging gun (4) so ​​that the charging cable (3) extends out of the protective device (2) to an appropriate length, rotate the rotating plate (26) to clamp the charging cable (3), and then plug the charging gun (4) into the car; Step 2: After use, the charging gun (4) is pulled out, and then the rotating plate (26) is rotated in the opposite direction. Under the elastic force of the coil spring (29), the circular plate (211) rotates, and the charging cable (3) is wound around the fixed rod (6) and the movable rod (814), thereby completing the recycling.

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