A shore power connection device

Abstract

The utility model discloses a kind of shore power connection devices, including the charging pile being set on bank, further include cable reel, set on bank, the power input end of cable reel is connected with the output end of the charging pile by wire;Driving motor, for driving the rotation of the cable reel;Positioning column, set on bank, positioning column is provided with positioning hole and ultrasonic receiver;Cable, winding on the cable reel, one end of the cable passes through the positioning hole and is connected with the charging connector for connecting with ship charging interface;Sleeve ring, sleeved on the cable, the sleeve ring is provided with clamp for being clamped on the ship rail and ultrasonic transmitter matched with the ultrasonic receiver;Advantage is capable of adapting water level change, less affected by seawater erosion, longer service life.

Description

Technical Field

[0001] This utility model belongs to the field of shore power technology for ships, and in particular relates to a shore power connection device. Background Technology

[0002] Ships typically rely on diesel engines for power generation while at sea, but diesel engine emissions pollute the environment. Therefore, the use of diesel generators is prohibited when approaching a dock. In this case, the ship must connect to the dock's power supply station via cable to use shore power.

[0003] To better adapt to water level changes during charging, a shore-based charging device for new energy vessels, as disclosed in application number CN2024220998698, includes a charging pile installed on the shore. The charging pile is fixedly mounted on a base, which also has a charging cable winding drum. The charging cable extending from the charging pile is wound around the drum. A vertical rail is installed on the shoreline where the charging pile is located, with a float in the rail. A rotating drum assembly is located on top of the float, through which the charging cable passes. One end of the charging cable has a plug that is compatible with the charging port on the vessel. In this technical solution, the float and the charging cable are connected via the rotating drum assembly, allowing it to float up and down with the water level, ensuring the charging cable maintains appropriate tension at all times, and maintaining a stable charging connection even in waters with significant tidal changes.

[0004] In actual use, some of the vertical rails need to be immersed in seawater to cope with different water levels. However, long-term contact with seawater may cause corrosion of the vertical rails, affecting the stability and service life of the structure. Therefore, there is still room for improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a shore power connection device that can adapt to water level changes, is less affected by seawater erosion, and has a longer service life.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a shore power connection device, including a charging pile installed on the shore, and further including...

[0007] A cable reel is installed on the shore, and the power input end of the cable reel is connected to the output end of the charging pile via a wire;

[0008] A drive motor is used to drive the cable reel to rotate;

[0009] The positioning post is set on the shore and is equipped with a positioning hole and an ultrasonic receiver.

[0010] A cable is wound on the cable reel, with one end of the cable passing through the positioning hole and connected to a charging connector for connection to a ship's charging interface.

[0011] A collar, fitted onto the cable, is provided with a clamp for clamping onto a ship's railing and an ultrasonic transmitter paired with the ultrasonic receiver.

[0012] Preferably, the cable reel includes a mounting frame and a winding shaft. The winding shaft has rotating shafts fixedly installed at both ends for rotating with the mounting frame. The cable is wound on the winding shaft. The drive motor is fixedly installed on the mounting frame and connected to one of the rotating shafts.

[0013] Preferably, the clamp includes a support plate, a hook, a limiting plate, a rotating bearing, a screw, and a first handle. One side of the support plate is fixedly connected to the outer side of the collar. A first screw hole is provided on the support plate. The connecting end of the hook is fixedly connected to the upper end face of the support plate. The upper end of the screw passes through the first screw hole and is fixedly connected to the inner ring of the rotating bearing. The outer ring of the rotating bearing is fixedly connected to the lower end face of the limiting plate. A clamping space is formed between the limiting plate and the hook. The first handle is fixedly disposed at the lower end of the screw.

[0014] Preferably, a first anti-slip pad is provided on the side of the hook facing the clamping space, and a second anti-slip pad is provided on the upper end of the limiting plate.

[0015] Preferably, the collar is also provided with a locking element for fixing the connection with the cable.

[0016] Preferably, the locking component includes a push rod and a second handle. The outer side of the push rod is provided with an external thread, and the outer side of the collar is provided with a second threaded hole. One end of the push rod passes through the second threaded hole and extends into the inner side of the collar, and the other end of the push rod is fixedly connected to the second handle.

[0017] Preferably, the positioning hole is a square hole, and the four inner walls of the square hole are respectively provided with notches. A rotating cylinder is rotatably disposed in the notch, and the cable passes through the four rotating cylinders.

[0018] Preferably, the positioning post includes a cylindrical body and a column body. The side of the cylindrical body is provided with a through hole and a fastening bolt. The lower part of the column body is inserted into the cylindrical body. The side of the column body is provided with a plurality of third screw holes distributed in the vertical direction. The fastening bolt passes through the through hole and is threadedly connected to one of the third screw holes. The positioning hole is provided at the top of the column body.

[0019] Compared with the prior art, the advantages of this utility model are:

[0020] 1. By setting up a cable reel, drive motor, positioning post, cable, and collar, the cable reel and positioning post are located on the shore. When using shore power, the collar is clamped to the ship's railing by a clamp. The ultrasonic transmitter on the collar and the ultrasonic receiver on the positioning post can provide real-time feedback on the ship's position changes. The drive motor winds up and unwinds the cable on the cable reel according to the ship's position changes to ensure that the cable can always maintain a suitable length to connect to the ship's charging interface, that is, it can adapt to water level changes and ensure the reliability of the connection.

[0021] 2. The charging pile, cable reel, drive motor, and positioning post are located on the shore. The ferrule is clamped to the ship's railing by a clamp. The drive motor winds up and unwinds the cable on the cable reel according to the ship's position, ensuring that the cable is always on the sea surface. It can be seen that the shore power connection device does not come into contact with seawater, is less affected by seawater corrosion, and has a longer service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a partial structural diagram of the present invention. Figure 1 ;

[0024] Figure 3 This is a partial structural diagram of the present invention. Figure 2 ;

[0025] Figure 4 This is a partial structural diagram of the present invention. Figure 3 .

[0026] In the diagram: 1. Charging pile; 2. Cable reel; 21. Mounting bracket; 22. Rewinding shaft; 221. Rotating shaft; 3. Drive motor; 4. Positioning post; 41. Positioning hole; 42. Notch; 43. Rotating drum; 44. Cylinder body; 441. Through hole; 45. Column body; 451. Third screw hole; 46. Fastening bolt; 5. Cable; 51. Charging connector; 6. Collar; 61. Second screw hole; 7. Wire; 81. Ultrasonic receiver; 82. Ultrasonic transmitter; 9. Clamp; 91. Support plate; 911. First screw hole; 92. Hook; 93. Limiting plate; 94. Rotating bearing; 95. Screw; 96. First handle; 97. First anti-slip pad; 98. Second anti-slip pad; 10. Locking element; 101. Push rod; 102. Second handle. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Example 1: As Figures 1 to 4 As shown, a shore power connection device includes a charging pile 1, a cable reel 2, a drive motor 3, a positioning post 4, a cable 5, and a collar 6. The charging pile 1, cable reel 2, drive motor 3, and positioning post 4 are all located on the shore.

[0030] The power input end of the cable reel 2 is connected to the output end of the charging pile 1 via the wire 7. The drive motor 3 is used to drive the cable reel 2 to rotate. The positioning post 4 is provided with a positioning hole 41 and an ultrasonic receiver 81. The cable 5 is wound on the cable reel 2. One end of the cable 5 passes through the positioning hole 41 and is connected to a charging connector 51 for connecting to the ship's charging interface. The collar 6 is fitted on the cable 5. The collar 6 is provided with a clamp 9 for clamping on the ship's railing and an ultrasonic transmitter 82 that is paired with the ultrasonic receiver 81.

[0031] In this embodiment, the cable reel 2 includes a mounting frame 21 and a winding shaft 22. Both ends of the winding shaft 22 are fixedly provided with rotating shafts 221 for rotating cooperation with the mounting frame 21. The cable 5 is wound on the winding shaft 22. The drive motor 3 is fixedly provided on the mounting frame 21 and connected to a rotating shaft 221 through a gear and rack.

[0032] Conventionally, the ultrasonic transmitter 82, such as the DigiKey MA40S4S, has a beam angle of approximately 80° and a wide range. Correspondingly, the ultrasonic receiver 81 could be a DigiKey MA40S4R. Of course, existing sensors with higher precision and wider applicable angles can also be used; this embodiment is merely illustrative. The ultrasonic transmitter 82 periodically emits signals, which are received by the ultrasonic receiver 81 and transmitted to the controller. The controller calculates whether the distance between the two has changed and then controls the drive motor 3 to extend and retract the cable 5 to the appropriate length. It should be noted that when using the shore-based power connection device, when connecting the charging connector 51 to the ship's charging interface, the cable 5 between the collar 6 and the positioning hole 41 hangs naturally. The length L1 of the cable 5 between the collar 6 and the positioning hole 41 is greater than the straight-line distance L2 between the collar 6 and the positioning hole 41 to avoid excessive tension on the cable 5.

[0033] Example 2: Figure 4 As shown, the rest of the components are the same as in Embodiment 1, except that the clamp 9 includes a support plate 91, a hook 92, a limiting plate 93, a rotating bearing 94, a screw 95, and a first handle 96. One side of the support plate 91 is fixedly connected to the outer side of the collar 6. A first screw hole 911 is provided on the support plate 91. The connecting end of the hook 92 is fixedly connected to the upper end face of the support plate 91. The upper end of the screw 95 passes through the first screw hole 911 and is fixedly connected to the inner ring of the rotating bearing 94. The outer ring of the rotating bearing 94 is fixedly connected to the lower end face of the limiting plate 93. A clamping space for clamping the ship railing is formed between the limiting plate 93 and the hook 92. The first handle 96 is fixedly disposed at the lower end of the screw 95. In use, the hook 92 is first hung on the ship railing, and then the first handle 96 is rotated to bring the limiting plate 93 closer to the hook 92. The limiting plate 93 and the hook 92 cooperate to clamp the ship railing. The rotating bearing 94 serves as a rotating connection, but a conventional rotating seat can also be used; the limiting plate 93 is preferably L-shaped.

[0034] Furthermore, a first anti-slip pad 97 is provided on the side of the hook 92 facing the clamping space, and a second anti-slip pad 98 is provided on the upper end of the limiting plate 93. By providing the first anti-slip pad 97 and the second anti-slip pad 98, the stability of clamping can be improved.

[0035] Example 3: Figure 2 and Figure 4 As shown, the rest of the parts are the same as in Embodiment 1, except that the collar 6 is also provided with a locking member 10 for fixed connection with the cable 5.

[0036] In this embodiment, the locking member 10 includes a push rod 101 and a second handle 102. The outer side of the push rod 101 is provided with an external thread (not shown in the figure). The outer side of the collar 6 is provided with a second screw hole 61. One end of the push rod 101 passes through the second screw hole 61 and extends into the inner side of the collar 6. The other end of the push rod 101 is fixedly connected to the second handle 102.

[0037] When connecting the charging connector 51 to the ship's charging interface, the second handle 102 is rotated to make the push rod 101 press against the cable 5 to form a lock, thereby reducing the pulling force on the charging connector caused by the weight of the cable 5 itself, which helps to ensure the stability of the connection between the charging connector 51 and the ship's charging interface.

[0038] Furthermore, a buffer pad (not shown in the figure) is provided at one end of the push rod 101.

[0039] Example 4: Figure 3As shown, the rest is the same as in Embodiment 1, except that the positioning hole 41 is a square hole, and the four inner walls of the square hole are respectively provided with notches 42. A rotating cylinder 43 is rotatably arranged in the notches 42, and the cable 5 passes through the four rotating cylinders 43. When the cable 5 passes through the positioning hole 41, it comes into contact with the rotating cylinder 43, which can reduce friction and has an anti-wear effect.

[0040] In this embodiment, the positioning post 4 includes a cylindrical body 44 and a column 45. The side of the cylindrical body 44 is provided with a through hole 441 and a fastening bolt 46. The lower part of the column 45 is inserted into the cylindrical body 44. The side of the column 45 is provided with multiple third threaded holes 451 distributed along the vertical direction. The fastening bolt 46 passes through the through hole 441 and is threaded into one of the third threaded holes 451. The positioning hole 41 is located at the top of the column 45. This structural design allows the positioning post 4 to be telescopic, enabling adjustment of its height and thus making it compatible with different types of vessels, thus improving its applicability.

[0041] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A shore power connection device, comprising a charging pile (1) installed on shore, characterized in that: Also includes A cable reel (2) is set on the shore, and the power input end of the cable reel (2) is connected to the output end of the charging pile (1) through a wire (7); A drive motor (3) is used to drive the cable reel (2) to rotate; A positioning post (4) is set on the shore, and a positioning hole (41) and an ultrasonic receiver (81) are provided on the positioning post (4); A cable (5) is wound on the cable reel (2), one end of which passes through the positioning hole (41) and is connected to a charging connector (51) for connection with the ship's charging interface. A collar (6) is fitted onto the cable (5), and the collar (6) is provided with a clamp (9) for clamping onto the ship railing and an ultrasonic transmitter (82) paired with the ultrasonic receiver (81).

2. The shore power connection device according to claim 1, characterized in that: The cable reel (2) includes a mounting frame (21) and a winding shaft (22). Both ends of the winding shaft (22) are fixedly provided with rotating shafts (221) for rotating cooperation with the mounting frame (21). The cable (5) is wound on the winding shaft (22). The drive motor (3) is fixedly provided on the mounting frame (21) and connected to one of the rotating shafts (221).

3. The shore power connection device according to claim 1, characterized in that: The clamp (9) includes a support plate (91), a hook (92), a limiting plate (93), a rotating bearing (94), a screw (95), and a first handle (96). One side of the support plate (91) is fixedly connected to the outer side of the collar (6). A first screw hole (911) is provided on the support plate (91). The connecting end of the hook (92) is fixedly connected to the upper end face of the support plate (91). The upper end of the screw (95) passes through the first screw hole (911) and is fixedly connected to the inner ring of the rotating bearing (94). The outer ring of the rotating bearing (94) is fixedly connected to the lower end face of the limiting plate (93). A clamping space is formed between the limiting plate (93) and the hook (92). The first handle (96) is fixedly disposed at the lower end of the screw (95).

4. A shore power connection device according to claim 3, characterized in that: The hook (92) is provided with a first anti-slip pad (97) on the side facing the clamping space, and the upper end of the limiting plate (93) is provided with a second anti-slip pad (98).

5. A shore power connection device according to claim 1, characterized in that: The collar (6) is also provided with a locking element (10) for fixed connection with the cable (5).

6. A shore power connection device according to claim 5, characterized in that: The locking component (10) includes a push rod (101) and a second handle (102). The outer side of the push rod (101) is provided with an external thread, and the outer side of the collar (6) is provided with a second screw hole (61). One end of the push rod (101) passes through the second screw hole (61) and extends into the inner side of the collar (6). The other end of the push rod (101) is fixedly connected to the second handle (102).

7. A shore power connection device according to claim 1, characterized in that: The positioning hole (41) is a square hole, and the four inner walls of the square hole are respectively provided with notches (42). A rotating cylinder (43) is rotatably arranged in the notch (42), and the cable (5) passes through the four rotating cylinders (43).

8. A shore power connection device according to claim 7, characterized in that: The positioning post (4) includes a cylindrical body (44) and a column (45). The side of the cylindrical body (44) is provided with a through hole (441) and a fastening bolt (46). The lower part of the column (45) is inserted into the cylindrical body (44). The side of the column (45) is provided with a plurality of third screw holes (451) distributed in the vertical direction. The fastening bolt (46) passes through the through hole (441) and is threaded to one of the third screw holes (451). The positioning hole (41) is provided at the top of the column (45).

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