Take-up and pay-off charging pile

Abstract

The utility model discloses a take-up and pay-off charging pile, which belongs to the technical field of charging piles and comprises a cabinet body, a charging cable, a linear motion device and a cable limiting device. The linear motion device and the cable limiting device are arranged in the cabinet body; a part of the charging cable is located outside the cabinet body, and the other part of the charging cable is limited in the cabinet body by the cable limiting device; and the linear motion device drives part of the charging cable to move along a straight line. The charging pile with the take-up and pay-off functions can effectively solve the problems that a cable of a charging pile in the prior art is overlong and hung on the outer side of a cabinet body, so that the appearance is affected, and the size is increased; and internal S-shaped storage or internal take-up barrel storage is adopted, so that a large space needs to be occupied, and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging piles, and specifically relates to a charging pile with a retractable wire. Background Art

[0002] Since the charging ports of new energy vehicles are not located uniformly, longer cables are often used to meet the charging needs of various vehicles. If the cable is too long, the cable will be coiled on the ground after the gun is hung. The dragging of the cable will cause wear and tear, reducing the service life of the cable. There are currently three solutions to this problem:

[0003] Solution 1: Add a steel wire rope sling on the top of the charging pile. In this solution, the cable is only suspended by the steel wire rope and is not actually stored in the cabinet, which has a great impact on the appearance. Solution 2: Internal S-shaped storage. This solution requires a large space due to the presence of many S-shaped cables inside. Solution 3: Internal take-up drum storage. In this solution, the charging cable is thicker and the bending radius needs to be larger, which also requires a large space to design the take-up drum.

[0004] For example, the Chinese utility model patent with document number CN219446761U: charging pile, including charging gun line, cabinet body and wire-retracting device, the charging gun line includes a connected gun head and a cable, and the charging gun socket and wire-retracting position for placing the gun head are respectively provided on different sides of the cabinet body, and the wire-retracting position is provided with a power port electrically connected to the cable; the wire-retracting device is provided at the wire-retracting position, and the wire-retracting device includes a roller group and a driving device for driving the roller group, and part of the cable passes through the roller group and is connected to the power port, and the power port is not higher than the roller group in the direction of the cabinet body from the ground, and part of the cable between the power port and the roller group naturally droops to form a first circle segment, and driven by the roller group, the cable has a wire-retracting position where the circumference of the first circle segment is reduced and a wire-retracting position where the circumference of the first circle segment is restored. The excess part of the charging cable of the above utility model is stored outside the cabinet body, which has a great impact on the appearance, and adding a protective shell further increases the volume of the charging cabinet. Utility Model Content

[0005] The purpose of the utility model is to provide a charging pile with retractable cables to solve the problems of the existing charging pile cables being too long and hanging outside the cabinet, affecting the appearance and increasing the volume; using internal S-shaped storage or internal reel storage, which will take up a large space. To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A retractable charging pile comprises a cabinet, a charging cable, a linear motion device and a cable limiting device; the linear motion device and the cable limiting device are both arranged in the cabinet; part of the charging cable is located outside the cabinet, and the other part is limited inside the cabinet by the cable limiting device; the linear motion device drives part of the charging cable to move in a straight line.

[0007] Furthermore, the cable limiting device includes a plurality of rollers; the plurality of rollers limit a moving path for the charging cable to limit the moving direction of the charging cable inside the cabinet.

[0008] Furthermore, a slider is fixedly connected to the linear motion device; the slider is fixedly connected to the charging cable on the side away from the linear motion device; the linear motion device drives the slider to move, and the slider drives the charging cable to move in a straight line within the cabinet; the movement path of the slider is parallel to the movement path of part of the charging cable.

[0009] Furthermore, the slider has a rack extending along the movement direction of the linear motion device; a telescopic device is provided on the part of the roller parallel to the movement direction of the linear motion device; during the movement, the rack cooperates with the telescopic device to drive the roller to retract to avoid the slider.

[0010] Furthermore, the telescopic device includes a bearing fixing block; a bearing is fixedly provided in the bearing fixing block; a mounting shaft is connected to the inner wall of the bearing; a gear is fixedly connected to the lower end of the mounting shaft; an inner thread hole is provided in the mounting shaft; a screw rod is cooperatively connected to the inner thread hole; the screw rod is connected to one end of a rolling bar; the gear can rotate in cooperation with the rack to drive the mounting shaft to rotate, so as to drive the screw rod to drive the rolling bar to move axially along the mounting shaft in the inner thread hole.

[0011] Furthermore, a charging gun is provided at one end of the charging cable outside the cabinet.

[0012] Furthermore, a cable arranger is provided on one side of the cabinet; the cable arranger cooperates with the moving path of the charging cable.

[0013] Furthermore, a gun hanging device is provided on the side of the cabinet opposite to the cable arranger.

[0014] Furthermore, travel switches are provided at both ends of the linear motion device.

[0015] Furthermore, a drag chain is provided inside the cabinet; one end of the drag chain is connected to the charging cable to limit the moving direction of the charging cable in the cabinet.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model provides a charging pile for retracting and releasing cables, which uses reasonably arranged rollers to limit the movement path of the charging cable, thereby preventing the cable from being stuck when being retracted and released;

[0018] 2. The utility model provides a charging pile for retracting and releasing cables, which adopts a flexible cable arranging device to reduce the stress on the cable when arranging the cables;

[0019] 3 The utility model provides a charging pile with a retractable cable, wherein the cables are stored in a charging pile cabinet, thereby preventing the life of the redundant cables from being reduced due to friction with the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the telescopic device of the utility model;

[0022] Figure 3 It is a cross-sectional view of the telescopic device of the utility model;

[0023] In the attached figure: 1-cabinet, 2-charging cable, 3-linear motion device, 4-roller, 5-slider, 6-rack, 7-bearing fixing block, 8-bearing, 9-mounting shaft, 10-gear, 11-screw, 12-charging gun, 13-cable arranger, 14-gun hanging device, 15-travel switch, 16-drag chain. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the present invention is not limited to the following embodiments.

[0025] Embodiment 1:

[0026] See attached Figures 1 to 3. A retractable charging pile includes a cabinet 1, a charging cable 2, a linear motion device 3 and a cable limiting device; the linear motion device 3 and the cable limiting device are both arranged in the cabinet 1; part of the charging cable 2 is located outside the cabinet 1, and the other part is limited inside the cabinet 1 by the cable limiting device; the linear motion device 3 drives part of the charging cable 2 to move in a straight line. As can be seen from the above structure, only the excess size other than the necessary length of the hanging gun needs to be stored, including a cabinet 1, the cabinet 1 is fixed in the charging site, one end of the charging cable 2 is connected to the charging cabinet to obtain electric energy, and the other end is connected to the new energy vehicle for charging the new energy vehicle. The cabinet 1 is also provided with an operation display panel for easy operation by customers. The above structure can be realized by the existing technology. Inside the cabinet 1, a linear motion device and a cable limiting device are provided. The linear motion device is pre-selected as an existing linear motion motor, which is arranged perpendicular to the ground. The output end of the linear motion motor is fixedly connected to the side part of the charging cable 2 to drive the part of the charging cable 2 to move up and down in a direction perpendicular to the ground, and only the part of the charging cable 2 is limited. The charging cables 2 of other departments may be entangled or stuck in the cabinet 1. A cable limiting device is further provided, which defines a path inside the cabinet 1, so that the charging cable 2 moves in the cabinet 1 completely according to the path, thereby solving the problems of entanglement and sticking of the charging cable 2 during the movement of the cabinet 1. The specific cable limiting device includes a plurality of rollers 4, which form two completely identical lines in the cabinet 1. The two lines form a path, and the width of the path is just equivalent to the diameter of the charging cable 2, which is used for the charging cable 2 to move on the path. The roller 4 can rotate by itself to reduce the resistance during the movement of the charging cable 2 and ensure its smooth movement. Preferably, in coordination with the movement direction of the linear motion motor, one section of the path formed by the roller bar 4 is perpendicular to the ground and parallel to the movement direction of the linear motion motor, and the other section of the path formed by the roller bar 4 is a curve, which is directly connected to the opening of the cabinet 1. In this way, the moving path of the charging cable 2 in the cabinet 1 is completely limited, and entanglement, jamming, etc. will not occur. The excess charging cable 2 can be stored in the cabinet 1, avoiding the accumulation of excess charging cables 2 on the outside of the cabinet 1 and affecting the appearance. The linear motion motor is used for power output to realize the automatic retraction and release of the charging cable 2.

[0027] Embodiment 2:

[0028] See attached Figures 1 to 3 Based on the first embodiment, the cable limiting device includes a plurality of rollers 4; the plurality of rollers 4 limit a moving path of the charging cable to limit the moving direction of the charging cable 2 inside the cabinet 1. As can be seen from the above structure, the rollers 4 are connected to the inner wall of the cabinet 1 and can rotate. Figure 1As shown, a number of rollers 4 form two completely identical routes along the inner wall of the cabinet 1, and a charging cable moving path is formed between the two routes. The width of the charging cable moving path is equivalent to the diameter of the charging cable 2. The rotation of the rollers 4 reduces the resistance of the charging cable 2 during movement, making the movement smoother.

[0029] The linear motion device 3 is fixedly connected with a slider 5; the slider 5 is fixedly connected to the charging cable 2 on the side away from the linear motion device 3; the linear motion device 3 drives the slider 5 to move, and the slider 5 drives the charging cable 2 to move in a straight line in the cabinet 1; the movement route of the slider 5 is parallel to the movement path of part of the charging cable. As can be seen from the above structure, the linear motion device 3 is preferably a linear motion motor, which is arranged inside the cabinet 1 perpendicular to the ground, and its movement direction is perpendicular to the ground. The output end of the linear motion motor is fixedly connected with the slider 5, and the other side of the slider 5 is fixed to the charging cable 2. Driven by the linear motion motor, the slider 5 moves up and down in a direction perpendicular to the ground, thereby driving part of the charging cable 2 to move in the same direction. The part of the charging cable 2 inside the cabinet 1 always moves along the movement path of the charging cable. The movement path of the slider 5 is parallel to the part of the movement path of the charging cable, so that the slider 5 drives the charging cable 2 to move in the movement path of the charging cable. The linear motion motor provides power for moving the charging cable 2.

[0030] Embodiment three:

[0031] See attached Figures 1 to 3 . On the basis of the second embodiment, the slider 5 is provided with a rack 6 extending along the movement direction of the linear motion device 3; a telescopic device is provided on a part of the roller 4 parallel to the movement direction of the linear motion device 3; the rack 6 cooperates with the telescopic device during the movement to drive the roller 4 to retract to avoid the slider 5. It can be seen from the above structure that the slider 5 will interfere with part of the roller 4 on the moving path of the charging cable in the process of driving the charging cable 2 to move. It is preferably arranged on one side of the slider 5 along the movement direction, that is, the top side of the slider 5 extends a rack 6, and the roller 4 on the same movement path as the slider 5 is provided with a telescopic device. When the slider 5 moves upward, the rack 6 on it first contacts the telescopic device on the roller 4, and the rack 6 triggers the telescopic device to move, driving the roller 4 on the telescopic device to retract. When the slider 5 passes the roller 4, it does not contact it, so as to avoid the movement of the slider 5 being blocked and unable to drive the movement of the charging cable 2.

[0032] The telescopic device includes a bearing fixing block 7; a bearing 8 is fixedly provided in the bearing fixing block 7; a mounting shaft 9 is connected to the inner wall of the bearing 8; a gear 10 is fixedly connected to the lower end of the mounting shaft 9; an inner thread hole is provided in the mounting shaft 9; a screw rod 11 is connected to the inner thread hole; the screw rod 11 is connected to one end of the rolling bar 4; the gear 10 can rotate in cooperation with the rack 6 to drive the mounting shaft 9 to rotate, so as to drive the screw rod 11 to drive the rolling bar 4 to move axially along the mounting shaft 9 in the inner thread hole. It can be known from the above structure that, specifically, the telescopic device includes a bearing fixing block 7, which is fixedly connected to the inside of the cabinet 1, and a bearing 8 is fixedly connected to the inside of the bearing fixing block 7, and a mounting shaft 9 is fixedly connected to the inside of the bearing 8. The bearing 8 and the mounting shaft 9 can rotate relative to the bearing fixing block 7. Further, an inner thread hole is provided on the inner wall of the mounting shaft 9, which can be connected with a screw rod 11. One end of the screw rod 11 is fixedly connected to a roller 4. A gear 10 is also fixedly connected to the mounting shaft 9. The gear 10 is hollow inside, and the roller 4 can pass through the inside of the gear 10. Its working principle: during the release process of the charging cable 2, when the slider 5 drives the rack 6 to move upward, the rack 6 first contacts the gear 10 in front of its path, driving the gear 10 to rotate. The rotation of the gear 10 further drives the installation shaft 9 to rotate. The installation shaft 9 is fixed in the axial direction. The screw 11 inside it moves up and down in the axial direction as the installation shaft 9 rotates, thereby driving the extension and retraction of the roller 4. When the slider 5 moves to the nearest roller 4, the cooperation between its rack 6 and the gear 10 causes the roller 4 to shrink and avoid the slider 5. Several rollers 4 in front shrink before the slider 5 arrives to avoid the movement of the slider 5, so as to achieve the smooth release of the charging cable 2. On the contrary, the charging cable 2 is wound up. When passing through the telescopic device on the first roller 4, the rack 6 and the gear 10 form a matching relationship. The gear 10 rotates to drive the screw 11 and the roller 4 to extend together, limiting the charging cable 2. When passing through the telescopic device of the second roller 4, the above action is repeated, and so on. The roller 4 and the telescopic device can prevent the charging cable 2 from being stuck due to bending under force.

[0033] The end of the charging cable 2 outside the cabinet 1 is provided with a charging gun 12. As can be seen from the above structure, the charging gun 12 is used to charge the electric vehicle, and further a sensor is provided on the charging gun 12 for detecting whether it is connected to the electric vehicle or the charging pile.

[0034] A cable arranging device 13 is provided on one side of the cabinet 1; the cable arranging device 13 matches the moving path of the charging cable. As can be seen from the above structure, the cable arranging device 13 is a flexible cable arranging device, and its direction matches the moving path of the charging cable. The flexible cable arranging device can reduce the stress on the charging cable 2 during cable arrangement.

[0035] Embodiment 4:

[0036] See attached Figures 1 to 3. On the basis of the third embodiment, a gun hanging device 14 is provided on the side of the cabinet 1 opposite to the cable arrangement device 13. As can be seen from the above structure, the gun hanging device 14 is used to store and protect the charging gun 12 when the charging pile is not in operation. The cable arrangement device 13 and the gun hanging device 14 are arranged on both sides of the cabinet 1, further reducing the length of the charging cable 2 inside the cabinet 1. Combined with the linear motion device and the cable limit device of the utility model, the charging cable 2 of excess size other than the necessary length for hanging the gun can be stored in a sufficiently compact charging pile.

[0037] Both ends of the linear motion device 3 are provided with a travel switch 15. As can be seen from the above structure, the travel switch 15 is provided, in conjunction with a controller of the prior art, to realize the automatic retraction and release of the charging cable 2.

[0038] The cabinet 1 is provided with a drag chain 16; one end of the drag chain 16 is connected to the charging cable 2 to limit the moving direction of the charging cable 2 in the cabinet 1. As can be seen from the above structure, the drag chain 16 is used to tow and protect the charging cable 2. Figure 1 It can be seen that the charging cable moving path composed of several rollers 4 can limit all paths of the charging cable 2 in the cabinet 1, and can also be partially replaced by a drag chain 16, which is used to limit, pull and protect the charging cable 2.

[0039] Specifically, the working principle of automatic wire release: after the system recognizes that the charging gun 12 is separated from the gun hanging device 14 through the sensor on the charging gun 12, the linear motion motor starts working, and the slider 5 moves upward in the vertical direction with the rack 6, the charging cable 2 and the fixed end of the drag chain 16. The roller 4 and the telescopic device can prevent the charging cable 2 from getting stuck due to bending under force. When passing through the first set of rollers 4 and the telescopic device, the rack 6 and the gear 10 are matched, and the gear 10 rotates to drive the screw 11 and the roller 4 to retract together to avoid the slider 5. When passing through the second set of rollers 4 and the telescopic device, the above actions are repeated, and so on. The charging cable 2 moves along the path specified by the rollers 4 and the cable arranger 13. When the travel switch 15 located at the upper end of the linear motion motor detects the signal of the arrival of the slider 5, the linear motion motor stops. The wire release action is completed.

[0040] The working principle of automatic wire reeling: the system identifies the interface between the charging gun 12 and the vehicle through the sensor on the charging gun 12. The linear motion motor starts working, and the slider 5 moves downward in the vertical direction with the rack 6, the charging cable 2 and the fixed end of the drag chain 16. The roller 4 and the telescopic device can prevent the cable from getting stuck due to bending under force. When passing through the first set of rollers 4 and the telescopic device, the rack 6 and the gear 10 form a matching relationship, and the rotation of the gear 10 drives the screw 11 and the roller 4 to extend together, limiting the charging cable 2. When passing through the second set of rollers 4 and the telescopic device, repeat the above actions, and so on. The charging cable 2 moves along the path specified by the rollers 4 and the cable arranger 13. When the travel switch 15 at the lower end of the linear motion motor detects the signal of the slider 5 arriving, the linear motion click stops. The wire reeling action is completed.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A charging pile with a retractable cable, characterized in that: The invention comprises a cabinet (1), a charging cable (2), a linear motion device (3) and a cable limiting device; the linear motion device (3) and the cable limiting device are both arranged in the cabinet (1); a portion of the charging cable (2) is located outside the cabinet (1), and the other portion is limited inside the cabinet (1) by the cable limiting device; the linear motion device (3) drives a portion of the charging cable (2) to move in a straight line.

2. A retractable charging pile according to claim 1, characterized in that: The cable limiting device comprises a plurality of rollers (4); the plurality of rollers (4) limit a moving path for the charging cable to limit the moving direction of the charging cable (2) inside the cabinet (1).

3. A retractable charging pile according to claim 2, characterized in that: A slider (5) is fixedly connected to the linear motion device (3); the slider (5) is fixedly connected to the charging cable (2) on a side away from the linear motion device (3); the linear motion device (3) drives the slider (5) to move, and the slider (5) drives the charging cable (2) to move along a straight line in the cabinet (1); the movement path of the slider (5) is parallel to a movement path of a portion of the charging cable.

4. A retractable charging pile according to claim 3, characterized in that: The slider (5) is provided with a rack (6) extending along the moving direction of the linear motion device (3); a telescopic device is provided on a portion of the roller (4) parallel to the moving direction of the linear motion device (3); during the movement, the rack (6) cooperates with the telescopic device to drive the roller (4) to contract to avoid the slider (5).

5. A retractable charging pile according to claim 4, characterized in that: The telescopic device comprises a bearing fixing block (7); a bearing (8) is fixedly arranged inside the bearing fixing block (7); a mounting shaft (9) is connected to the inner wall of the bearing (8); a gear (10) is fixedly connected to the lower end of the mounting shaft (9); an inner thread hole is arranged inside the mounting shaft (9); a screw rod (11) is connected to the inner thread hole in cooperation with the screw rod (11); the screw rod (11) is connected to one end of a rolling bar (4); the gear (10) can rotate in cooperation with the rack (6) to drive the mounting shaft (9) to rotate, so as to drive the screw rod (11) to drive the rolling bar (4) to move axially along the mounting shaft (9) in the inner thread hole.

6. A retractable charging pile according to claim 1, characterized in that: A charging gun (12) is provided at one end of the charging cable (2) located outside the cabinet (1).

7. A retractable charging pile according to claim 2, characterized in that: A cable arranger (13) is provided on one side of the cabinet (1); the cable arranger (13) cooperates with the moving path of the charging cable.

8. A retractable charging pile according to claim 7, characterized in that: A gun hanging device (14) is provided on the side of the cabinet (1) opposite to the cable arrangement device (13).

9. A retractable charging pile according to claim 1, characterized in that: Travel switches (15) are provided at both ends of the linear motion device (3).

10. A retractable charging pile according to claim 1, characterized in that: A drag chain (16) is provided inside the cabinet (1); one end of the drag chain (16) is connected to the charging cable (2) to limit the moving direction of the charging cable (2) inside the cabinet (1).

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