Electric vehicle charging pile cable

Abstract

The present invention discloses an electric vehicle charging pile cable, comprising a charging plug, one side of the charging plug is connected to a cable, one side of the charging plug is provided with a charging socket, the charging socket is provided on an external electric vehicle, one side of the charging socket is uniformly provided with round holes, a conductive terminal is installed inside the round hole, one side of the charging plug is uniformly provided with a terminal guide column, the terminal guide column is electrically connected to the conductive terminal, a notch is provided on the terminal guide column, the terminal guide column has elastic deformation capability, an accommodating groove is provided on the inner wall of the terminal guide column, a tightening strip is slidably provided inside the accommodating groove, one end of the tightening strip located on each of the terminal guide columns is commonly connected with a flexible belt, a winding roller is rotatably installed on the inner wall of the charging plug through a bearing, the flexible belt is wound around the outer wall of the winding roller, and the device solves the current problem of poor practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of charging cables, and in particular relates to an electric vehicle charging pile cable. Background Art

[0002] One end of the car charging cable is a charging plug, which is plugged into the car's charging socket to complete charging. In order to prevent the plug from falling off, the wiring terminal on the socket and the plug have a certain interference fit to increase friction. When the charging pile is frequently used, the contact part will be worn, resulting in poor contact. Generally, this phenomenon is dealt with by regularly replacing the charging plug, which is not practical. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0003] The purpose of the present invention is to provide an electric vehicle charging pile cable for an existing material collection device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an electric vehicle charging pile cable, comprising a charging plug, a cable is connected to one side of the charging plug, a charging socket is arranged on one side of the charging plug, the charging socket is arranged on an external electric vehicle, circular holes are evenly arranged on one side of the charging socket, conductive terminals are installed inside the circular holes, terminal guide columns are evenly arranged on one side of the charging plug, the terminal guide columns are electrically connected to the conductive terminals, a notch is arranged on the terminal guide columns, the terminal guide columns have elastic deformation capability, and the inner wall of the terminal guide columns is made of conductive material.

[0005] The present invention further illustrates that a receiving groove is provided on the inner wall of the terminal guide column, a tightening strip is slidably arranged inside the receiving groove, one end of the tightening strip on each of the terminal guide columns is commonly connected to a flexible belt, a winding roller is rotatably installed on the inner wall of the charging plug through a bearing, and the flexible belt is wrapped around the outer wall of the winding roller.

[0006] The present invention further illustrates that a worm gear is connected to one side of the winding roller by welding, and the worm gear is rotatably connected to the inner wall of the charging plug. A connecting shaft is rotatably installed on the inner wall of one side of the charging plug, and a worm is sleeved on the outside of the connecting shaft, and the worm is threadedly connected to the worm gear.

[0007] The present invention further illustrates that one end of the connecting shaft is connected to a toothed disk, a guide rail is installed on an inner wall of one side of the charging plug, a control pull strip is slidably connected to the inner wall of the guide rail, and the control pull strip is meshed with the toothed disk.

[0008] The present invention further illustrates that a through hole is opened on one side of the charging plug, the control pull rod is bent and passes through the through hole, and one end of the control pull rod is fixed to the inner wall of the charging plug.

[0009] The present invention further illustrates that lateral limit assemblies are correspondingly arranged on both sides of the charging plug, and the lateral limit assemblies include a contact plate. A U-shaped groove is opened on one side of the charging plug, and the inner wall of the U-shaped groove is rotatably connected with a support arm through a bearing, and an adjustment shaft is sleeved inside one end of the support arm, and contact plates are connected to both ends of the adjustment shaft, and the contact plates are in contact with the side walls of the charging socket.

[0010] The present invention further describes that one side of the U-shaped groove is recessed inwardly to form an extension groove, a square block is slidably installed inside the extension groove, the square block and the support arm are a matching structure, and a shift block is connected to the top of the square block.

[0011] The present invention further illustrates that the length of the terminal guide column is greater than the depth of the circular hole, and the flexible belt does not contact the side wall of the charging socket. The conductive terminal has a small thermal expansion and contraction performance, and the conductive terminal expands when heated to open a gap.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention adopts a terminal post with a notch, which is tightened to close the notch during charging, and after charging is completed, the terminal post is disconnected from charging by pulling out the control pull strip. At this time, it can be easily removed without damaging the terminal due to repeated plugging and unplugging, thereby improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 is a schematic diagram of the flexible toothed belt connection of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of the toothed disc of the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of the lateral limit assembly of the present invention;

[0018] In the figure: 1. Charging plug; 11. Terminal guide column; 111. Notch; 112. Accommodating groove; 12. Flexible belt; 13. Through hole; 14. Control pull rod; 15. Winding roller; 16. Tightening strip; 17. Guide rail; 18. Gear plate; 181. Worm; 182. Connecting shaft; 183. Worm gear; 2. Charging socket; 21. Round hole; 22. Conductive terminal; 3. Cable; 4. Lateral limit assembly; 41. U-shaped groove; 42. Extension groove; 43. Square block; 44. Dial block; 45. Support arm; 46. Adjustment shaft; 47. Contact plate. DETAILED DESCRIPTION

[0019] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The present invention provides a technical solution: an electric vehicle charging pile cable, comprising a charging plug 1, a cable 3 is connected to one side of the charging plug 1, a charging socket 2 is arranged on one side of the charging plug 1, the charging socket 2 is arranged on the external electric vehicle, a round hole 21 is evenly opened on one side of the charging socket 2, a conductive terminal 22 is installed inside the round hole 21, a terminal guide column 11 is evenly arranged on one side of the charging plug 1, the terminal guide column 11 is electrically connected to the conductive terminal 22, a notch 111 is opened on the terminal guide column 11, the terminal guide column 11 has elastic deformation ability, the inner wall of the terminal guide column 11 is made of conductive material, when in use, the charging plug 1 is first inserted into the charging socket 2, so that the terminal guide column 11 and the conductive terminal 22 are mutually sleeved, at this time, the notch 111 is squeezed, so that the conductive part of its inner wall starts to conduct electricity, and charging can start at this time, and at the same time, a certain squeezing force is exerted on the conductive terminal 22 to prevent it from falling off;

[0021] The inner wall of the terminal guide column 11 is provided with a receiving groove 112, and a tightening strip 16 is slidably provided inside the receiving groove 112. One end of the tightening strip 16 on each terminal guide column 11 is commonly connected to the flexible belt 12. A winding roller 15 is rotatably installed on the inner wall of the charging plug 1 through a bearing. The flexible belt 12 is wound around the outer wall of the winding roller 15. When charging, the winding roller 15 is rotated forward to wrap the flexible belt 12 around its outer wall, and the flexible belt 12 can be tightened at the same time. One end of the flexible belt 12 pulls and drives the tightening strip 16 to tighten, so that the gap 111 is tightly closed. At this time, power is turned on and a certain connection resistance is generated to prevent the charging plug 1 from falling off. At the same time, since no external fixing parts are required, the charging process is convenient. When charging is completed, the winding roller 15 is rotated in the opposite direction to loosen the flexible belt 12. The terminal guide column 11 will form a gap 111 due to the elastic restoring force. At this time, the charging plug 1 can be easily removed, which is convenient for reducing friction during plugging and unplugging, thereby increasing the service life of the charging plug 1.

[0022] A worm gear 183 is connected to one side of the winding roller 15 by welding. The worm gear 183 is rotatably connected to the inner wall of the charging plug 1. A connecting shaft 182 is rotatably installed on the inner wall of one side of the charging plug 1. A worm 181 is sleeved on the outside of the connecting shaft 182. The worm 181 is screwed with the worm gear 183. When charging, the terminal guide column 11 and the conductive terminal 22 are first plugged into each other, and then the worm 181 is driven to rotate. The worm 181 drives the worm gear 183 to rotate. Since the worm gear mechanism has a self-locking performance, it can prevent its reversal, so that the terminal guide column 11 is always closed during charging to prevent it from being disconnected;

[0023] One end of the connecting shaft 182 is connected to a toothed disc 18, and a guide rail 17 is installed on the inner wall of one side of the charging plug 1. The inner wall of the guide rail 17 is slidably connected to a control pull bar 14, and the control pull bar 14 is meshed with the toothed disc 18. By pulling the control pull bar 14, the toothed disc 18 can be controlled to rotate, thereby driving the connecting shaft 182 to rotate, so that the worm 181 rotates, and the rotary drive is converted into a linear drive. Since the rotary drive will generate torque during disassembly, the terminal guide column 11 and the conductive terminal 22 will become loose, but when it becomes a linear drive force, it will follow the direction of plugging and unplugging the plug. The direction of the force is not torsion but linear, and the cooperation between the terminal guide column 11 and the conductive terminal 22 will not be loosened due to torque due to frequent plugging and unplugging. At the same time, since it is not directly driven, the hidden danger of electric shock during plugging and unplugging can be avoided;

[0024] A through hole 13 is provided on one side of the charging plug 1. A control pull bar 14 is bent and passes through the through hole 13. One end of the control pull bar 14 is fixed to the inner wall of the charging plug 1. When disassembling, the control pull bar 14 is pulled outward to move. When charging, the control pull bar 14 is pushed inward to move, which can drive the worm 181 to rotate forward or reverse. At the same time, when charging, the control pull bar 14 is embedded inside it to prevent children from touching it by mistake.

[0025] A lateral limit assembly 4 is correspondingly provided on both sides of the charging plug 1. The lateral limit assembly 4 includes a contact plate 47. A U-shaped groove 41 is provided on one side of the charging plug 1. The inner wall of the U-shaped groove 41 is rotatably connected to a support arm 45 through a bearing. An adjustment shaft 46 is sleeved inside one end of the support arm 45. Contact plates 47 are connected to both ends of the adjustment shaft 46. The contact plate 47 contacts the side wall of the charging socket 2. When the angle of the support arm 45 is adjusted, the contact plate 47 will be attached to the charging socket 2 for clamping, so as to prevent the left and right shaking of the charging plug 1 and the charging socket 2. When charging is completed, the support arm 45 is manually pulled toward the edge so that the contact plate 47 no longer blocks the movement of the charging plug 1, thereby enhancing the stability of the charging process from the outer ear.

[0026] One side of the U-shaped groove 41 is recessed inwardly to form an extension groove 42, and a square block 43 is slidably installed inside the extension groove 42. The square block 43 and the support arm 45 are a matching structure, and a shift block 44 is connected to the top of the square block 43. By pulling the shift block 44, the square block 43 blocks the movement of the support arm 45, thereby limiting the lateral position of the charging plug 1, so that it always faces forward and is clamped, increasing the force point, and preventing the loosening phenomenon caused by the force applied by shaking left and right when plugging and unplugging;

[0027] The length of the terminal guide column 11 is greater than the depth of the circular hole 21, and the flexible belt 12 does not contact the side wall of the charging socket 2. The conductive terminal 22 has a small thermal expansion and contraction performance. When the conductive terminal 22 is heated and expanded, the gap 111 is opened. When the circuit is short-circuited, due to the increase of current, the conductive terminal 22 is heated and expanded to force the terminal guide column 11 to open, so that the conductive material on the inner wall of the terminal guide column 11 is separated, and the internal power circuit is directly disconnected, which is convenient for preventing short-circuit damage to the car and improving safety.

[0028] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric vehicle charging pile cable, comprising a charging plug (1), characterized in that: A cable (3) is connected to one side of the charging plug (1); a charging socket (2) is provided on one side of the charging plug (1); the charging socket (2) is provided on an external electric vehicle; a circular hole (21) is evenly provided on one side of the charging socket (2); a conductive terminal (22) is installed inside the circular hole (21); a terminal guide column (11) is evenly provided on one side of the charging plug (1); the terminal guide column (11) is electrically connected to the conductive terminal (22); a notch (111) is provided on the terminal guide column (11); the terminal guide column (11) has elastic deformation capability; and the inner wall of the terminal guide column (11) is made of a conductive material; The inner wall of the terminal guide column (11) is provided with a receiving groove (112), a tightening strip (16) is slidably arranged inside the receiving groove (112), one end of the tightening strip (16) located on each of the terminal guide columns (11) is commonly connected to a flexible belt (12), a winding roller (15) is rotatably mounted on the inner wall of the charging plug (1) via a bearing, and the flexible belt (12) is wound around the outer wall of the winding roller (15); A worm gear (183) is connected to one side of the winding roller (15) by welding, and the worm gear (183) is rotatably connected to the inner wall of the charging plug (1). A connecting shaft (182) is rotatably mounted on the inner wall of one side of the charging plug (1), and a worm (181) is sleeved on the outside of the connecting shaft (182), and the worm (181) is threadedly connected to the worm gear (183).

2. The electric vehicle charging pile cable according to claim 1, characterized in that: One end of the connecting shaft (182) is connected to a toothed disc (18); a guide rail (17) is installed on an inner wall of one side of the charging plug (1); a control pull bar (14) is slidably connected to the inner wall of the guide rail (17); and the control pull bar (14) is meshed with the toothed disc (18).

3. The electric vehicle charging pile cable according to claim 2, characterized in that: A through hole (13) is provided on one side of the charging plug (1), the control pull bar (14) is bent and passes through the through hole (13), and one end of the control pull bar (14) is fixed to the inner wall of the charging plug (1).

4. The electric vehicle charging pile cable according to claim 3, characterized in that: Transverse limit assemblies (4) are correspondingly arranged on both sides of the charging plug (1), and the transverse limit assemblies (4) include contact plates (47). A U-shaped groove (41) is provided on one side of the charging plug (1), and an inner wall of the U-shaped groove (41) is rotatably connected to a support arm (45) via a bearing, and an adjustment shaft (46) is sleeved inside one end of the support arm (45), and contact plates (47) are connected to both ends of the adjustment shaft (46), and the contact plates (47) are in contact with the side wall of the charging socket (2).

5. The electric vehicle charging pile cable according to claim 4, characterized in that: One side of the U-shaped groove (41) is inwardly recessed to form an extension groove (42), a square block (43) is slidably mounted inside the extension groove (42), the square block (43) and the support arm (45) are a matching structure, and a shifting block (44) is connected to the top of the square block (43).

6. The electric vehicle charging pile cable according to claim 5, characterized in that: The length of the terminal guide column (11) is greater than the depth of the circular hole (21), and the flexible belt (12) does not contact the side wall of the charging socket (2). The conductive terminal (22) has a small thermal expansion and contraction performance, and the conductive terminal (22) expands when heated to open the notch (111).

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