Connecting device of shore power plug and socket

Abstract

The utility model relates to a shore power plug and socket connecting device, which comprises a box body, and a cable joint, a sealing cover assembly, a socket, a mutual inductor, a shunt and a circuit breaker which are arranged in the box body, and the sealing cover assembly comprises a sealing cover seat, a handle and a side cover. When power connection is needed, the corresponding sealing cover assembly is selected, the handle is rotated and pushed upwards, the side cover is opened accordingly, and the socket in the side cover is exposed, so that the power connection requirement for a ship is met; after the power connection is completed, the handle is put down, and the side cover is naturally opened and is always hermetically connected with the sealing cover seat due to the dead weight of the handle, thereby preventing rainwater and sand from damaging the interface of the socket, and prolonging the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of marine electrical equipment, and in particular to a connection device for shore power plugs and sockets. Background Technology

[0002] Shore power refers to a system that allows ships to use power supplied from shore while berthed or anchored. This power system is mainly used to replace diesel generators on board ships, reducing carbon emissions and environmental pollution during berth. However, the socket structure required for high-voltage shore power differs from that of civilian sockets. Its connection structure must not only meet the requirements of high-voltage power supply but also consider the protection of the socket when it is not in use. Traditional shore power connection devices are equipped with flip covers at the sockets, but the sealing effect of the flip covers is not good in inclement weather, which leads to the socket interface being corroded by rainwater and sand, posing a serious electrical safety hazard. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is as follows: a connection device for a shore power plug and socket, including a housing, and a cable connector, a cover assembly, a socket, a current transformer, a branch circuit breaker and a circuit breaker disposed in the housing. A cable connector for connecting an external power cable is fixedly connected to one side of the housing. The cover assembly includes a cover seat, a handle and a side cover. The cover seat is fixedly connected to the front of the housing. The cover seat is fitted with a socket, and the cover seat is rotatably connected to a side cover for protecting the socket, and a handle for controlling the opening or closing of the side cover. The socket is provided with a connecting wire, which passes through the current transformer and connects to the branch circuit breaker. The circuit breaker is connected to an external power cable through the branch circuit breaker.

[0004] Using the above technical solution, mains power is connected to the input terminal of the circuit breaker via a cable connector. The output terminal of the circuit breaker is connected to a branch circuit breaker, which connects multiple plugs in parallel. Since the plugs are flexibly connected to the branch circuit breaker via connecting wires, the installation structure of the branch circuit breaker will not be affected when the plugs are impacted. The connecting wires are fitted with current transformers to monitor the power output of the corresponding plugs, thereby determining whether the circuit is properly connected. When power is required, the corresponding cover assembly is selected, and the handle is rotated upwards and pushed, opening the side cover to meet the needs of marine power connection. After power connection is completed, the handle is lowered, and the side cover opens naturally due to the weight of the handle, always sealing the connection cover seat to prevent rainwater and sand from damaging the socket interface and improving the service life of the equipment.

[0005] As a preferred embodiment of this utility model, the cover seat is provided with a mounting plate, a cylindrical part and a bracket provided on the mounting plate, and studs distributed coaxially on the left and right sides of the cylindrical part. The mounting plate is connected to the box body by bolts, the two ends of the handle are rotatably connected to the studs, and the side cover is rotatably connected to the cover seat by the bracket.

[0006] Furthermore, the socket is fitted inside the cylindrical part, the outer side of the cylindrical part is a bevel, and the inner side is provided with threaded holes distributed in a circle. The socket is connected to the cover seat through the threaded holes.

[0007] Furthermore, the side cover is provided with a cover plate, a turning part located above the cover plate, and threaded parts located on both sides of the cover plate. The turning part is rotatably connected to the bracket by bolts, and the handle is fixedly connected to the cover plate by the threaded parts.

[0008] By adopting the above technical solution, since the outer side of the cylindrical part has a sloping structure similar to the eaves, the cylindrical part has a rainproof effect, preventing rainwater from flowing into the socket interface.

[0009] As a preferred embodiment of this utility model, the handle is provided with a lever arm that is inclined downward in the direction away from the box body, and a side bar connected between the two sets of lever arms.

[0010] With the above technical solution, when the handle is naturally lowered, the side rod is located on the outside of the cover seat through the lever arm. The side rod, under the action of gravity, makes the side cover connect to the cylindrical part at a negative angle, avoiding gaps between the side cover and the cylindrical part and maintaining the stability of the structure.

[0011] As a preferred embodiment of this utility model, the circuit breaker includes an insulating plate, and a live wire plate, a ground wire plate and a neutral wire plate distributed parallel to the insulating plate, as well as an inner contact plate and an outer contact plate for electrically connecting the circuit breaker. The live wire plate / neutral wire plate / ground wire plate is provided with a connection hole b for electrically connecting the inner contact plate and the outer contact plate, and a connection hole c for electrically connecting the connecting wire of the socket.

[0012] Furthermore, the output end of the circuit breaker is provided with rectangularly distributed connection holes a, and the inner contact plate and the outer contact plate are connected to the front and back sides of the output end of the circuit breaker through the connection holes a.

[0013] By adopting the above technical solution, each output terminal of the circuit breaker is simultaneously connected to the corresponding branch circuit via bolts on the inner and outer contact plates, avoiding poor contact due to loose bolts, thereby meeting the requirements for high-voltage connection.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] When power is required, select the corresponding cover assembly, rotate the handle upwards and push it to open the side cover, exposing the socket inside, thus meeting the needs of marine power connection; after power connection is completed, lower the handle, and the weight of the handle will cause the side cover to open naturally, always sealing the connection cover seat, preventing rainwater and sand from damaging the socket interface, and improving the service life of the equipment. Attached Figure Description

[0016] Figure 1This is the front view of the present invention;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 For the present utility model Figure 2 A sectional view of the view along direction A;

[0019] Figure 4 For the present utility model Figure 2 A sectional view of the B-direction view;

[0020] Figure 5 This is a perspective view of the capping assembly of this utility model;

[0021] Figure 6 This is a rear view of the capping assembly of this utility model;

[0022] Figure 7 This is a schematic diagram of the connection between the circuit breaker and the branch circuit breaker of this utility model;

[0023] In the diagram: 1 - enclosure, 2 - cable connector, 3 - cover assembly, 4 - socket, 5 - current transformer, 6 - branch circuit breaker, 7 - circuit breaker, 31 - cover base, 32 - handle, 33 - side cover, 41 - connecting wire, 60 - insulating plate, 61 - live wire plate, 62 - ground wire plate, 63 - neutral wire plate, 64 - inner contact plate, 65 - outer contact plate, 67 - connection hole a, 68 - connection hole b, 69 - connection hole c, 311 - mounting plate, 312 - cylindrical part, 313 - bracket, 314 - stud, 315 - threaded hole, 321 - lever arm, 322 - side rod, 331 - cover plate, 332 - steering part; Detailed Implementation

[0024] To facilitate understanding of this invention, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this invention.

[0025] Combination Figure 1-4As shown, this utility model provides a connection device for a shore power plug and socket, including a housing 1, and a cable connector 2, a cover assembly 3, a socket 4, a current transformer 5, a branch circuit 6, and a circuit breaker 7 disposed in the housing 1. A cable connector 2 for connecting an external power cable is fixedly connected to one side of the housing 1. The cover assembly 3 includes a cover seat 31, a handle 32, and a side cover 33. The cover seat 31 is fixedly connected to the front of the housing 1. The socket 4 is fitted onto the cover seat 31, and the cover seat 31 is rotatably connected to the side cover 33 for protecting the socket 4, and a handle 32 for controlling the opening or closing of the side cover 33. The socket 4 is provided with a connecting wire 41, which passes through the current transformer 5 and connects to the branch circuit 6. The circuit breaker 7 is connected to an external power cable through the branch circuit 6.

[0026] Combination Figure 5 , 6 As shown, in this embodiment, the cover seat 31 is provided with a mounting plate 311, a cylindrical portion 312 and a bracket 313 provided on the mounting plate 311. The cylindrical portion 312 has coaxially distributed studs 314 on its left and right sides. The mounting plate 311 is connected to the housing 1 by four sets of bolts. The two ends of the handle 32 are rotatably connected to the studs 314. The side cover 33 is rotatably connected to the cover seat 31 through the bracket 313. The socket 4 is fitted inside the cylindrical portion 312. The outer surface of the cylindrical portion 312 is a slope, and the inner surface has circumferentially distributed studs 314. The socket 4 is connected to the cover seat 31 through the threaded hole 315. The side cover 33 is provided with a cover plate 331, a turning part 332 above the cover plate 331, and threaded parts 333 on both sides of the cover plate 331. The turning part 332 is rotatably connected to the bracket 313 by bolts. The handle 32 is fixedly connected to the cover plate 331 through the threaded part 333. The handle 32 is provided with a lever arm 321 that is inclined downward in the direction away from the box body 1, and a side rod 322 connected between the two sets of lever arms 321.

[0027] Combination Figure 7 As shown, in this embodiment, the circuit breaker 6 includes an insulating plate 60, and a live wire plate 61, a ground wire plate 62, and a neutral wire plate 63 arranged parallel to the insulating plate 60, as well as an inner contact plate 64 and an outer contact plate 65 for electrically connecting the circuit breaker 7. The live wire plate 61 / neutral wire plate 63 / ground wire plate 62 are provided with connection holes b68 for electrically connecting the inner contact plate 64 and the outer contact plate 65, and connection holes c69 for electrically connecting the connecting wire 41 of the socket 4. The output terminal of the circuit breaker 7 includes a live wire terminal, a ground wire terminal, and a neutral wire terminal. The live wire terminal / ground wire terminal / neutral wire terminal are provided with connection holes a67 arranged in a rectangle. The inner contact plate 64 and the outer contact plate 65 are connected to the front and back sides of the live wire terminal / ground wire terminal / neutral wire terminal through the connection holes a67.

[0028] The working principle of this utility model is as follows: the mains power is connected to the input terminal of the circuit breaker 7 through the cable connector 2, and the output terminal of the circuit breaker 7 is connected to the branch circuit 6. Multiple plugs are connected in parallel by the branch circuit 6. When power is needed, the corresponding cover assembly 3 is selected, and the handle 32 is rotated upward and pushed, and the side cover 33 is opened accordingly, thereby meeting the needs of marine power connection. After the power connection is completed, the handle 32 is reset. Due to the effect of gravity, the handle 32 always exerts a force on the side plate to rotate inward, preventing gaps between the side cover 33 and the cylindrical part 312, and avoiding damage to the socket 4 by rainwater and sand.

Claims

1. A connection device for a shore power plug and socket, characterized in that, The enclosure includes a housing (1), and a cable connector (2), a cover assembly (3), a socket (4), a current transformer (5), a shunt (6), and a circuit breaker (7) located inside the housing (1). A cable connector (2) for connecting an external power cable is fixedly connected to one side of the housing (1). The cover assembly (3) includes a cover seat (31), a handle (32), and a side cover (33). The cover seat (31) is fixedly connected to the front of the housing (1). The cover seat (31) is fitted with a socket (4), and the cover seat (31) is rotatably connected to a side cover (33) for protecting the socket (4), and a handle (32) for controlling the opening or closing of the side cover (33). The socket (4) is provided with a connecting wire (41), which passes through the current transformer (5) and connects to the shunt (6). The circuit breaker (7) is connected to an external power cable through the shunt (6).

2. The connection device for the shore power plug and socket according to claim 1, characterized in that: The cover seat (31) is provided with a mounting plate (311), a cylindrical part (312) and a bracket (313) on the mounting plate (311). The cylindrical part (312) is provided with studs (314) distributed coaxially on the left and right sides. The mounting plate (311) is connected to the box body (1) by bolts. The two ends of the handle (32) are rotatably connected to the studs (314). The side cover (33) is rotatably connected to the cover seat (31) through the bracket (313).

3. The connection device for the shore power plug and socket according to claim 2, characterized in that: The socket (4) is fitted inside the cylindrical part (312). The outer side of the cylindrical part (312) is a bevel, and the inner side is provided with threaded holes (315) distributed in a circle. The socket (4) is connected to the cover seat (31) through the threaded holes (315).

4. The connection device for a shore power plug and socket according to claim 3, characterized in that: The side cover (33) is provided with a cover plate (331), a turning part (332) above the cover plate (331), and threaded parts (333) on both sides of the cover plate (331). The turning part (332) is rotatably connected to the bracket (313) by bolts. The handle (32) is fixedly connected to the cover plate (331) by the threaded part (333).

5. The connection device for a shore power plug and socket according to claim 4, characterized in that: The handle (32) is provided with a lever arm (321) that is inclined downward in the direction away from the box body (1), and a side bar (322) connected between the two sets of lever arms (321).

6. The connection device for a shore power plug and socket according to claim 1, characterized in that: The circuit breaker (6) includes an insulating plate (60), and a live wire plate (61), a ground wire plate (62) and a neutral wire plate (63) distributed parallel to the insulating plate (60), as well as an inner contact plate (64) and an outer contact plate (65) for electrically connecting the circuit breaker (7). The live wire plate (61) / neutral wire plate (63) / ground wire plate (62) are provided with connection holes b (68) for electrically connecting the inner contact plate (64) and the outer contact plate (65), and connection holes c (69) for electrically connecting the connecting wire (41) of the socket (4).

7. The connection device for a shore power plug and socket according to claim 6, characterized in that: The output end of the circuit breaker (7) is provided with rectangularly distributed connection holes a (67), and the inner contact plate (64) and the outer contact plate (65) are connected to the front and back sides of the output end of the circuit breaker (7) through the connection holes.

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