A quick plug type intelligent multifunctional shore power connection box

Abstract

The utility model relates to a kind of smart multifunctional shore power connection box of quick plug, which belongs to the technical field of shore power system control.The left and right sides of the connection box are respectively provided with three-phase input socket group and three-phase output socket group, and shore power line fixing support and grounding column are mounted on the left and right sides of the connection box;the front of the box body is equipped with multifunctional instrument, local control button, internet of things antenna and intelligent circuit breaker;the back of the box body is mounted with cabinet fan.The shore power connection box changes the wiring mode of shore power line into plug-in type by using quick connector, avoiding the time-consuming and laborious screw nut type wiring, improving the production efficiency of shipbuilding.And through internet of things technology, remote control circuit breaker is opened and closed, reducing the time used for wiring and personnel movement, improving work efficiency.In the case of fault not being ruled out, whether local or remote operation, the intelligent circuit breaker cannot be closed by forced safety design, avoiding the fault expansion caused by operator's misoperation, ensuring that power transmission is only carried out in safe state.

Description

Technical Field

[0001] This utility model relates to a quick-connect intelligent multi-functional shore power connection box, mainly for the intelligent control of shore power systems during ship construction, and belongs to the technical field of shore power system control. Background Technology

[0002] Shore power junction boxes are crucial shore power control devices in shipbuilding. They control the ship's shore power system by opening and closing the switch in the junction box, and are widely used in shipbuilding. Traditional shore power junction box wiring uses screws and nuts, which is time-consuming and labor-intensive. Furthermore, opening and closing the switch requires personnel to physically operate it, consuming significant time. Therefore, it is necessary to design a shore power junction box that facilitates manual wiring and allows for remote control of the switch's opening and closing, thereby reducing time costs and improving the efficiency of shipbuilding.

[0003] This product is a practical new device developed to address problems encountered in actual production operations. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a quick-connect intelligent multi-functional shore power connection box. By replacing the traditional screw and nut wiring with a quick-connect plug, the connection process of the shore power line is greatly simplified and wiring time is saved. At the same time, it integrates an intelligent circuit breaker and an edge gateway, realizing a local-remote dual control mode for the shore power switch.

[0005] The technical solution adopted by this utility model is as follows: a quick-connect intelligent multi-functional shore power connection box, wherein a three-phase input socket group and a three-phase output socket group are respectively set on the left and right sides of the connection box, and shore wire fixing brackets and grounding posts are installed on both the left and right sides of the connection box; the front of the box is equipped with a multi-functional instrument, local control button, Internet of Things antenna and intelligent circuit breaker; and a cabinet fan is installed on the back of the box. The external three-phase power supply L1, L2, and L3 of the three-phase input socket group are connected to the main circuit. After being controlled and protected by the main switch Q1, they are connected to multiple output branches through the busbar. Each branch is connected in series with the corresponding marine circuit breaker to realize the output of the branch power supply and the overload / short circuit protection of the branch. Finally, the power is supplied to the outside through the A, B, and C interfaces of the three-phase output socket group. One power supply is drawn from the main circuit, which is connected to the control transformer T1 after fuses F1 and F2 to convert the three-phase power into 220V control power. One of this control power supplies is connected to the temperature controller via fuses F3 and F4, and the temperature controller automatically controls the start and stop of the cabinet fan according to the cabinet temperature. The other power supply is connected to the 1600A frame circuit breaker intelligent controller via fuses F5 and F6, and to the edge gateway digital terminal via fuses F7 and F8, to supply power to the 1600A frame circuit breaker intelligent controller and the edge gateway digital terminal. The edge gateway digital terminal is the core control and communication node. The electrical parameter interface is used to collect electrical data. It connects to the busbar temperature sensor through the T1 to T6 interfaces to monitor the temperature of the L1, L2, and L3 interfaces of the three-phase input socket group and the A, B, and C interfaces of the three-phase output socket group. It connects to the smoke detector through the GND, So, Si, and V0 interfaces to monitor the environment and equipment status. The terminal's 4G interface connects to the IoT antenna, and the A1 and B1 interfaces are responsible for signal interaction with the drawer socket communication module. The signal output of the edge gateway digital terminal is connected to the intelligent controller of the 1600A frame circuit breaker via the drawer base communication module. The input side of the intelligent controller of the 1600A frame circuit breaker is connected to auxiliary switches X1 and X15, electric trip switch S1E, electric closing switch S2E, and fault trip indicator H5. Its output side is connected to the trip release unit F, closing electromagnet X, energy storage motor M, and undervoltage release unit Q. It is also connected to the trip indicator H1 and closing indicator H2 via lines to intuitively display the status of the circuit breaker.

[0006] The operator can close the smart circuit breaker by pressing the local control button; alternatively, the operator can send a closing command to the smart circuit breaker via a mobile client, which remotely controls the closure of the smart circuit breaker 8 through the IoT antenna. The shore power connection box then begins operation, and the vessel is powered by shore power. Information from the multifunction instrument is transmitted to the operator's mobile client via the IoT antenna, allowing the operator to monitor the shore power status locally via the multifunction instrument or through the mobile client. After troubleshooting, the operator can press the local control button again, or remotely control the smart circuit breaker to close it, allowing the cabinet fan and shore power connection box to resume operation, and the vessel is once again powered by shore power.

[0007] Compared with the prior art, this utility model has the following advantages: the quick-connect multi-functional shore power connection box uses quick connectors to change the wiring method of the shore power line to plug-in type. Through Internet of Things technology, it realizes remote control of the circuit breaker to open and close, reducing the time spent on wiring and personnel movement, and improving work efficiency.

[0008] This quick-connect multi-functional shore power connection box solution simplifies the connection process of shore power lines and saves wiring time by replacing traditional screws and nuts with quick-connect connectors and fixed brackets. It also integrates a smart circuit breaker and an edge gateway, enabling local / remote dual control of the shore power switch, avoiding the time spent by operators traveling to and from the site. Combined with a multi-functional instrument and IoT communication, it can simultaneously achieve local observation and remote monitoring of the shore power status. Combined with the overcurrent and overvoltage protection functions of the smart circuit breaker, it not only improves operational safety but also significantly reduces the time cost of shore power control during ship construction, effectively improving production efficiency and combining convenience, intelligence, and practicality. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a left view of a quick-connect multi-functional shore power connection box.

[0011] Figure 2 This is the front view of the quick-connect multi-functional shore power connection box.

[0012] Figure 3 This is a right view of a quick-connect multi-functional shore power connection box.

[0013] Figure 4 This is a rear view of the quick-connect multi-functional shore power connection box.

[0014] Figure 5 This is the circuit diagram of a quick-connect multi-functional shore power connection box.

[0015] Figure 6 This is the circuit diagram of a quick-connect multi-functional shore power connection box.

[0016] The components include: 1. Three-phase input socket set, 2. Shore cable fixing bracket, 3. Grounding post, 4. Three-phase output socket set, 5. Multifunctional meter, 6. Local control button, 7. Internet of Things antenna, 8. Smart circuit breaker, 9. Lifting lug, 10. Cabinet fan. Detailed Implementation

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0021] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0024] like Figures 1 to 4 As shown, the quick-connect multi-functional shore power connection box includes a three-phase input socket group 1, a shore power cable fixing bracket 2, a grounding post 3, a three-phase output socket group 4, a multi-functional instrument 5 (monitoring shore power status and information from the intelligent circuit breaker 8), a local control button 6, an IoT antenna 7, an intelligent circuit breaker 8 (with overcurrent, overvoltage, undervoltage, and phase loss protection functions), lifting lugs 9, and a cooling fan 10. The three-phase input socket group 1 and the three-phase output socket group 4 are respectively installed on the left and right sides of the quick-connect multi-functional shore power connection box; both sides of the box are equipped with shore power cable fixing brackets 2 and grounding posts 3; the front of the box is equipped with the multi-functional instrument 5, the local control button 6, the IoT antenna 7, and the intelligent circuit breaker 8; the back of the box is equipped with a cooling fan 10; and the top of the box is equipped with lifting lugs 9.

[0025] like Figure 5 and Figure 6 The diagram shows the circuit schematic of a quick-connect multi-functional shore power connection box. The three-phase input sockets correspond to L1, L2, and L3 in the diagram; the three-phase output sockets correspond to A, B, and C; the local control buttons correspond to S1E and S2E; and the IoT antenna corresponds to... Figure 2 The mid-edge digital gateway and intelligent circuit breaker correspond to the 1600A frame circuit breaker intelligent controller in the diagram.

[0026] The external three-phase power supply L1, L2, and L3 of the three-phase input socket group are connected to the main circuit. After being controlled and protected by the main switch Q1, they are connected to multiple output branches through the busbar. Each branch is connected in series with the corresponding marine circuit breaker to realize the output of the branch power supply and the overload / short circuit protection of the branch. Finally, the power is supplied to the outside through the A, B, and C interfaces of the three-phase output socket group. One power supply is drawn from the main circuit, which is connected to the control transformer T1 after fuses F1 and F2 to convert the three-phase power into 220V control power. One of this control power supplies is connected to the temperature controller via fuses F3 and F4, and the temperature controller automatically controls the start and stop of the cabinet fan according to the cabinet temperature. The other power supply is connected to the 1600A frame circuit breaker intelligent controller via fuses F5 and F6, and to the edge gateway digital terminal via fuses F7 and F8, to supply power to the 1600A frame circuit breaker intelligent controller and the edge gateway digital terminal. The edge gateway digital terminal is the core control and communication node. The electrical parameter interface is used to collect electrical data. It connects to the busbar temperature sensor through the T1 to T6 interfaces to monitor the temperature of the L1, L2, and L3 interfaces of the three-phase input socket group and the A, B, and C interfaces of the three-phase output socket group. It connects to the smoke detector through the GND, So, Si, and V0 interfaces to monitor the environment and equipment status. The terminal's 4G interface connects to the IoT antenna, and the A1 and B1 interfaces are responsible for signal interaction with the drawer socket communication module. The signal output of the edge gateway digital terminal is connected to the intelligent controller of the 1600A frame circuit breaker via the drawer base communication module. The input side of the intelligent controller of the 1600A frame circuit breaker is connected to auxiliary switches X1 and X15, electric trip switch S1E, electric closing switch S2E, and fault trip indicator H5. Its output side is connected to the trip release unit F, closing electromagnet X, energy storage motor M, and undervoltage release unit Q. It is also connected to the trip indicator H1 and closing indicator H2 via lines to intuitively display the status of the circuit breaker.

[0027] The work process is as follows: Step 1: Using the lifting lug 9, lift the shore power connection box to a suitable position on the ship's deck and connect the grounding wire to the grounding post 3.

[0028] Step 2: Connect the two sets of shore cables equipped with quick connectors to the three-phase input socket group 1 and the three-phase output socket group 4 respectively. The other end of the shore cable connected to the three-phase input socket group 1 is connected to the dock power distribution station, and the other end of the shore cable connected to the three-phase output socket group 4 is connected to the ship's shore power inlet.

[0029] Step 3: The two sets of shore cables of the three-phase input socket group 1 and the three-phase output socket group 4 are fixed on the shore cable fixing bracket 2.

[0030] Step 4: Power supply and cooling fan operation at the dock. The three-phase power supply (L1 / L2 / L3) of the dock power distribution network is connected from the three-phase input socket group. After the main switch Q1 is closed, the main circuit power supply is converted to 220V control power supply through the control transformer T1 (440V / 220V). One of the control power supplies is connected to the temperature controller. At this time, the temperature controller is turned on by default (or the initial temperature is detected), which triggers the circuit of the cabinet fan 10 to be energized. The fan starts to run after obtaining 220V power supply through fuses F3 and F4, so as to realize the heat dissipation of the shore power connection box.

[0031] Step 5: Smart circuit breaker closes (local / remote) Local operation (control button 6 corresponds to the S2E electric closing button): When the operator presses switch S2E, the closing circuit of the 1600A frame circuit breaker intelligent controller is activated: the 220V control power supply drives the closing electromagnet X to operate, and at the same time the energy storage motor M starts to store energy for the circuit breaker, and finally the main contacts of the circuit breaker close; at this time, the auxiliary switch X15 (closing status feedback) switches, the closing indicator light H2 lights up, the shore power main circuit is connected, and the ship obtains shore power.

[0032] Remote operation (IoT antenna 7 corresponds to the edge gateway digital terminal and 4G antenna): The mobile client's closing command is transmitted to the edge gateway digital terminal via the 4G network. The terminal sends a closing signal to the intelligent controller through the A1 and B1 interfaces. The intelligent controller executes the closing action (X and M linkage) consistent with the local operation, completing the remote closing and putting the shore power connection box into operation.

[0033] Step 6: Shore power status monitoring (local / remote) Local observation (multi-functional instrument 5): The multi-functional instrument collects voltage, current and other data of shore power through the Ua / Ub / Uc / Un (voltage) and IA* / IA (current) interfaces of the edge gateway digital terminal and displays them directly on the instrument.

[0034] Remote viewing (mobile client): The edge gateway digital terminal packages the collected electrical parameter data (via interfaces such as Ua / Ub / Uc), uploads it to the cloud platform through the 4G communication interface and IoT antenna, and then pushes it to the mobile client to realize remote monitoring of the shore power status.

[0035] Step 7: The action logic for shore power anomalies forms a closed loop of monitoring, judgment, execution, and feedback: The 1600A frame circuit breaker intelligent controller (intelligent circuit breaker 8) collects shore power parameters in real time through interfaces such as Ua / Ub / Uc / Un and IA* / IA. If an anomaly such as overcurrent or overvoltage is detected, the internal logic unit triggers a protection command, controls the power supply to supply power to the trip unit F, drives the mechanical structure of the circuit breaker to separate, and at the same time, the auxiliary switches X1 / X15 switch states, causing the trip indicator H1 to light up and the closing indicator H2 to turn off; then the trip signal of the auxiliary switch is transmitted to the edge gateway digital terminal. The terminal packages the data such as the anomaly type and disconnection time, and uploads it to the mobile client via 4G through the IoT antenna T. Operators can read the electrical parameters locally through the multi-function instrument 5, or remotely retrieve the data to locate the cause of the fault.

[0036] Step 8: Fault blocking mechanism of intelligent circuit breaker 8 When the fault is not resolved, its built-in fault interlocking module will cut off the closing circuit. When the S1E electric closing button is pressed locally, the closing electromagnet X cannot obtain control power and the energy storage motor M cannot start, resulting in closing failure. When a closing command is sent remotely, the signal from the edge gateway digital terminal will be directly rejected by the smart circuit breaker, and a "fault not resolved" signal will be fed back to the client. Only after the fault is resolved and the circuit is reset via the local reset button or remote command will the interlocking module be released, the closing circuit be restored to conduction, and the local or remote closing operation be effective.

[0037] Step 9: Reclose the circuit breaker after troubleshooting. After troubleshooting, the operator resets the fault interlocking module of the intelligent circuit breaker, presses S2E (local) again or sends a remote command (client), the closing circuit of the intelligent controller regains its conductivity, repeats the closing action of step 5, and the main contacts of the circuit breaker close; at the same time, the cabinet fan continues to run with the control power supply, and the shore power connection box resumes power supply to the ship.

[0038] Repeat steps 1-9 to complete the operation of the shore power control system of any ship.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-connect intelligent multi-functional shore power connection box, characterized in that: The junction box is equipped with a three-phase input socket group and a three-phase output socket group on the left and right sides respectively. Both sides of the junction box are equipped with shore cable fixing brackets and grounding posts. The front of the box is equipped with a multi-function instrument, local control buttons, IoT antenna and smart circuit breaker. The back of the box is equipped with a cabinet fan. The external three-phase power supply L1, L2, and L3 of the three-phase input socket group are connected to the main circuit. After being controlled and protected by the main switch Q1, they are connected to multiple output branches through the busbar. Each branch is connected in series with the corresponding marine circuit breaker to realize the output of the branch power supply and the overload / short circuit protection of the branch. Finally, the power is supplied to the outside through the A, B, and C interfaces of the three-phase output socket group. One power supply is drawn from the main circuit, which is connected to the control transformer T1 after fuses F1 and F2 to convert the three-phase power into 220V control power. One of this control power supplies is connected to the temperature controller via fuses F3 and F4, and the temperature controller automatically controls the start and stop of the cabinet fan according to the cabinet temperature. The other power supply is connected to the 1600A frame circuit breaker intelligent controller via fuses F5 and F6, and to the edge gateway digital terminal via fuses F7 and F8, to supply power to the 1600A frame circuit breaker intelligent controller and the edge gateway digital terminal. The edge gateway digital terminal is the core control and communication node. The electrical parameter interface is used to collect electrical data. It connects to the busbar temperature sensor through the T1 to T6 interfaces to monitor the temperature of the L1, L2, and L3 interfaces of the three-phase input socket group and the A, B, and C interfaces of the three-phase output socket group. It connects to the smoke detector through the GND, So, Si, and V0 interfaces to monitor the environment and equipment status. The terminal's 4G interface connects to the IoT antenna, and the A1 and B1 interfaces are responsible for signal interaction with the drawer socket communication module. The signal output of the edge gateway digital terminal is connected to the intelligent controller of the 1600A frame circuit breaker via the drawer base communication module. The input side of the intelligent controller of the 1600A frame circuit breaker is connected to auxiliary switches X1 and X15, electric trip switch S1E, electric closing switch S2E, and fault trip indicator H5. Its output side is connected to the trip release unit F, closing electromagnet X, energy storage motor M, and undervoltage release unit Q. It is also connected to the trip indicator H1 and closing indicator H2 via lines to intuitively display the status of the circuit breaker.

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