CN216560727U - Shore power measuring circuit, shore power measuring box and shore power measuring system - Google Patents
Shore power measuring circuit, shore power measuring box and shore power measuring system Download PDFInfo
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- CN216560727U CN216560727U CN202123119735.0U CN202123119735U CN216560727U CN 216560727 U CN216560727 U CN 216560727U CN 202123119735 U CN202123119735 U CN 202123119735U CN 216560727 U CN216560727 U CN 216560727U
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Abstract
The utility model relates to a shore power measuring circuit, a shore power measuring box and a shore power measuring system, wherein the circuit comprises a current induction component, a multifunctional meter, a voltage measuring component and a current measuring component, a three-phase power supply supplies power to a ship through an input wiring terminal and an output wiring terminal respectively, the current induction component is sleeved on a cable between the input wiring terminal and the output wiring terminal, a current inductor is electrically connected with a current input end of the multifunctional meter and a group of current input ends of the current measuring component respectively, a current output end of the multifunctional meter is electrically connected with the other group of current input ends of the current measuring component, and the input wiring terminal is electrically connected with a voltage input end of the multifunctional meter and the voltage measuring component respectively. Through current induction subassembly, multi-function table, current measurement subassembly and voltage measurement subassembly, realize the real time monitoring of supply voltage electric current, the multi-function table calculates the electric quantity according to measuring voltage and electric current in real time simultaneously to guarantee that the power supply of boats and ships is normal and accurate measurement, circuit structure is simple, and the monitoring is convenient.
Description
Technical Field
The utility model relates to the technical field of shore power, in particular to a shore power measuring circuit, a shore power measuring box and a shore power measuring system.
Background
When the ship is in shore, shore power can be transferred by the shore power box through the switch to supply power to the ship and the lighting. The shore power box is suitable for the shore power box with the direct current of less than 220V, the alternating current of 50 or 60HZ and the voltage of less than 660V. In practice, when the shore power box supplies power to a ship, the power supply of the ship needs to be measured and monitored. In the prior art, the electricity consumption of ships is mostly not accurately measured, and the electricity consumption of the ships is not monitored in real time, so that the potential safety hazard of the electricity consumption of the ships exists, and very serious consequences can be caused once an electricity consumption accident occurs. Therefore, real-time monitoring of the ship's supply of electricity to the shore is required.
Disclosure of Invention
The utility model aims to solve the technical problem of the prior art and provides a shore power measuring circuit, a shore power measuring box and a shore power measuring system.
The technical scheme for solving the technical problems is as follows: a shore power measuring circuit comprises a current sensing assembly, a multifunctional meter, a voltage measuring assembly and a current measuring assembly, wherein an external three-phase power supply A, B, C is connected in through input wiring terminals X1, X2 and X3 respectively, the input wiring terminals X1, X2 and X3 are electrically connected with output wiring terminals X4, X5 and X6 through cables respectively, the output wiring terminals X4, X5 and X6 serve as output ends to supply power to a ship, the current sensing assembly is sleeved on the cables between the input wiring terminals X1, X2 and X3 and the output wiring terminals X4, X5 and X6, a current inductor is electrically connected with a current input end of the multifunctional meter and a group of current input ends of the current measuring assembly respectively, a current output end of the multifunctional meter is electrically connected with another group of current input ends of the current measuring assembly, and the input wiring terminals X2 and X3 are electrically connected with a voltage input end of the multifunctional meter and a voltage input end 1 of the voltage measuring assembly respectively And (6) connecting.
The utility model has the beneficial effects that: the shore power measuring circuit collects current signals in a main loop through the current sensing assembly, sequentially outputs the current signals to the multi-function meter and the current measuring assembly, simultaneously measures voltage between every two phases of power through the voltage measuring assembly and the multi-function meter, realizes real-time monitoring and displaying of power supply voltage and current, simultaneously calculates electric quantity in real time through the multi-function meter according to the measured voltage and current, and synchronously obtains power supply frequency, phase and other electrical parameters so as to ensure normal and accurate power supply of a ship, and is simple in circuit structure and convenient to monitor.
On the basis of the technical scheme, the utility model can be further improved as follows:
further: the current induction subassembly includes first current transformer TA1 and second current transformer TA2, first current transformer TA1 and second current transformer TA2 establish respectively the cover establish between input binding post X1 and output binding post X4 and on the cable between input binding post X3 and the output binding post X6, just the one end of first current transformer TA1 coil and the one end of second current transformer TA2 coil with a set of current input end electricity of multi-functional table is connected, the other end of first current transformer TA1 coil and the other end of second current transformer TA2 coil with a set of current input end electricity of current measurement subassembly is connected.
The beneficial effects of the further scheme are as follows: through the first current transformer TA1 and the second current transformer TA2, when current flows through cables between the input wiring terminal X1 and the output wiring terminal X4 and between the input wiring terminal X3 and the output wiring terminal X6, induced current can be generated and output to the multifunctional meter and the current measuring component, so that on one hand, the multifunctional meter can calculate electric quantity through the measured current value, and on the other hand, the current measuring component can measure and display the supply current.
Further: the current vehicle assembly comprises a current transfer switch and an ammeter, wherein one group of current input ends of the current transfer switch are respectively connected with the other end of a first current transformer TA1 coil and the other end of a second current transformer TA2 coil, and the other group of current input ends of the current transfer switch are correspondingly and electrically connected with a current output end of the multifunctional ammeter.
The beneficial effects of the further scheme are as follows: the current signal that input end inserts can be switched through the current change-over switch to the realization is measured the three-phase current respectively, and shows through the ampere meter, convenient operation, shows directly perceived.
Further: the voltage measurement assembly comprises a voltage conversion switch and a voltmeter, three voltage input ends of the voltage conversion switch are respectively and correspondingly electrically connected with the input wiring terminals X1, X2 and X3, and two output ends of the voltage conversion switch are respectively and electrically connected with two input ends of the voltmeter.
The beneficial effects of the further scheme are as follows: the voltage signal that the input end inserts can be switched through the voltage change-over switch to the realization is to the voltage between arbitrary two-phase electricity in the three phase current, and passes through the voltmeter shows, convenient operation, and it is directly perceived to show.
Further: the input connecting terminals X1, X2 and X3 are respectively and correspondingly electrically connected with three voltage input ends of the multifunctional meter and three voltage input ends of the voltage change-over switch through fuses FU1, FU2 and FU 3.
The beneficial effects of the further scheme are as follows: the fuses FU1, FU2 and FU3 are arranged, so that the fuse can be automatically disconnected when the current in a power supply line is too large, and the power supply safety of an on-shore ship is ensured.
Further: the shore power measuring circuit further comprises a wireless communication circuit, the wireless communication circuit is electrically connected with the multifunctional meter, and the wireless communication circuit is wirelessly connected with the background server.
The beneficial effects of the further scheme are as follows: through setting up wireless communication circuit can be convenient the multi-functional table carries out real-time data interaction with backend server, makes things convenient for relevant department real-time supervision to lean on the shore the power consumption condition of boats and ships, also is convenient for the shore electricity to use the condition of berth to trail and supervise.
The utility model also provides a shore power measuring box which comprises a box body and the shore power measuring circuit, wherein the front side of the box body is provided with a box door capable of being opened or closed, and the shore power measuring circuit is arranged in the box body.
The utility model also provides a shore power measuring system which comprises a background server, at least one intelligent terminal and at least one shore power measuring box, wherein the wireless communication circuit is in wireless connection with the background server, and the background server is in wireless connection with the intelligent terminal.
Drawings
Fig. 1 is a schematic circuit diagram of a shore power measurement circuit according to an embodiment of the present invention;
fig. 2 is a schematic elevation structure diagram of a shore power measuring box according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a shore power measurement system according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. and (4) a box body.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, a shore power measuring circuit includes a current sensing component, a multifunctional meter, a voltage measuring component and a current measuring component, an external three-phase power supply A, B, C is respectively connected through input connection terminals X1, X2 and X3, the input connection terminals X1, X2 and X3 are respectively electrically connected with output connection terminals X4, X5 and X6 through cables, the output connection terminals X4, X5 and X6 are used as output terminals to supply power to a ship, the current sensing component is sleeved on the cables between the input connection terminals X1, X2 and X3 and the output connection terminals X4, X5 and X6, and the current sensors are respectively electrically connected with a current input terminal of the multifunctional meter and a group of current input terminals of the current measuring component, a current output terminal of the multifunctional meter is electrically connected with another group of current input terminals of the current measuring component, the input terminal X1, the multifunctional meter, the voltage measuring component and the current measuring component are electrically connected with another group of the current measuring component, X2 and X3 are respectively and electrically connected with the voltage input end of the multifunctional watch and the voltage input end of the voltage measuring component.
The shore power measuring circuit collects current signals in a main loop through the current sensing assembly, sequentially outputs the current signals to the multi-function meter and the current measuring assembly, simultaneously measures voltage between every two phases of power through the voltage measuring assembly and the multi-function meter, realizes real-time monitoring and displaying of power supply voltage and current, simultaneously calculates electric quantity in real time through the multi-function meter according to the measured voltage and current, and synchronously obtains power supply frequency, phase and other electrical parameters so as to ensure normal and accurate power supply of a ship, and is simple in circuit structure and convenient to monitor.
In one or more embodiments of the present invention, the current sensing assembly includes a first current transformer TA1 and a second current transformer TA2, the first current transformer TA1 and the second current transformer TA2 are respectively sleeved on the cables between the input terminal X1 and the output terminal X4 and between the input terminal X3 and the output terminal X6, one end of a coil of the first current transformer TA1 and one end of a coil of the second current transformer TA2 are electrically connected to a set of current input ends of the multifunctional watch, and the other end of a coil of the first current transformer TA1 and the other end of a coil of the second current transformer TA2 are electrically connected to a set of current input ends of the current measuring assembly. Through the first current transformer TA1 and the second current transformer TA2, when current flows through cables between the input wiring terminal X1 and the output wiring terminal X4 and between the input wiring terminal X3 and the output wiring terminal X6, induced current can be generated and output to the multifunctional meter and the current measuring component, so that on one hand, the multifunctional meter can calculate electric quantity through the measured current value, and on the other hand, the current measuring component can measure and display the supply current.
In one or more embodiments of the utility model, the current vehicle component comprises a current transfer switch and an ammeter, one set of current input ends of the current transfer switch is respectively connected with the other end of the first current transformer TA1 coil and the other end of the second current transformer TA2 coil, and the other set of current input ends of the current transfer switch is correspondingly and electrically connected with the current output end of the multifunctional ammeter. The current signal that input end inserts can be switched through the current change-over switch to the realization is measured the three-phase current respectively, and shows through the ampere meter, convenient operation, shows directly perceived.
In one or more embodiments of the present invention, the voltage measuring component includes a voltage conversion switch and a voltmeter, three voltage input ends of the voltage conversion switch are respectively and correspondingly electrically connected with the input connection terminals X1, X2 and X3, and two output ends of the voltage conversion switch are respectively and electrically connected with two input ends of the voltmeter. The voltage signal that the input end inserts can be switched through the voltage change-over switch to the realization is to the voltage between arbitrary two-phase electricity in the three phase current, and passes through the voltmeter shows, convenient operation, and it is directly perceived to show.
Optionally, in one or more embodiments of the present invention, the input terminals X1, X2, and X3 are respectively electrically connected to the three voltage input terminals of the multifunctional meter and the three voltage input terminals of the voltage switcher through fuses FU1, FU2, and FU3, respectively. The fuses FU1, FU2 and FU3 are arranged, so that the fuse can be automatically disconnected when the current in a power supply line is too large, and the power supply safety of an on-shore ship is ensured.
Optionally, in one or more embodiments of the present invention, the shore power measurement circuit further includes a wireless communication circuit, the wireless communication circuit is electrically connected to the multifunctional meter, and the wireless communication circuit is wirelessly connected to the background server. Through setting up wireless communication circuit can be convenient the multi-functional table carries out real-time data interaction with backend server, makes things convenient for relevant department real-time supervision to lean on the shore the power consumption condition of boats and ships, also is convenient for the shore electricity to use the condition of berth to trail and supervise. For example, when the ship stops at the berth, if the electric energy signal is not available or is abnormal, the judgment of no use of shore power or shore power failure is fed back, and thus shore power supervision is performed.
Here, the wireless communication circuit adopts the existing 4G module, and is convenient to carry out wireless data interaction with the background server.
As shown in fig. 2, the utility model further provides a shore power measuring box, which comprises a box body 1 and the shore power measuring circuit, wherein the box door capable of being opened or closed is arranged on the front side of the box body, and the shore power measuring circuit is arranged in the box body 1.
Here, voltmeter, ampere meter, multi-functional table, voltage change over switch and current change over switch inlay respectively and set up on the chamber door, convenient operation and demonstration measuring result.
As shown in fig. 3, the utility model further provides a shore power measurement system, which includes a background server, at least one intelligent terminal, and at least one shore power measurement box, wherein the wireless communication circuit is wirelessly connected with the background server, and the background server is wirelessly connected with the intelligent terminal.
In practice, the intelligent terminal can also be in direct wireless connection with the wireless communication circuit and perform remote monitoring, and the intelligent terminal can be flexibly arranged according to actual conditions.
The shore power measuring system can realize remote monitoring and management, and is convenient for relevant departments to carry out real-time monitoring so as to allocate resources according to actual conditions.
In the embodiment of the present invention, the intelligent terminal may be one or more of a PC, a smart phone, a tablet PC, and a PDA, and the number of each intelligent terminal may be one or more.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A shore power measuring circuit is characterized by comprising a current sensing assembly, a multifunctional meter, a voltage measuring assembly and a current measuring assembly, wherein an external three-phase power supply A, B, C is connected in through input wiring terminals X1, X2 and X3 respectively, the input wiring terminals X1, X2 and X3 are electrically connected with output wiring terminals X4, X5 and X6 through cables respectively, the output wiring terminals X4, X5 and X6 serve as output ends to supply power to a ship, the current sensing assembly is sleeved on the cables between the input wiring terminals X1, X2 and X3 and the output wiring terminals X4, X5 and X6, a current sensor is electrically connected with a current input end of the multifunctional meter and a group of current input ends of the current measuring assembly respectively, a current output end of the multifunctional meter is electrically connected with the other group of current input ends of the current measuring assembly, the input end X1, the multifunctional meter, the voltage measuring assembly and the current measuring assembly are electrically connected with the other group of the current input end of the current connecting terminals of the current measuring assembly respectively, X2 and X3 are respectively and electrically connected with the voltage input end of the multifunctional watch and the voltage input end of the voltage measuring component.
2. The shore power measuring circuit of claim 1, wherein said current sensing assembly comprises a first current transformer TA1 and a second current transformer TA2, said first current transformer TA1 and said second current transformer TA2 are respectively sleeved on the cables between said input connection terminal X1 and output connection terminal X4 and between said input connection terminal X3 and output connection terminal X6, and one end of said first current transformer TA1 coil and one end of said second current transformer TA2 coil are electrically connected with a set of current input terminals of said multifunctional watch, and the other end of said first current transformer TA1 coil and the other end of said second current transformer TA2 coil are electrically connected with a set of current input terminals of said current measuring assembly.
3. The shore power measuring circuit of claim 2, wherein said current measuring assembly comprises a current transfer switch and an ammeter, one set of current input terminals of said current transfer switch is electrically connected to the other end of said first current transformer TA1 coil and the other end of said second current transformer TA2 coil, respectively, and the other set of current input terminals of said current transfer switch is electrically connected to the current output terminal of said multifunctional ammeter.
4. The shore power measuring circuit of claim 1, wherein said voltage measuring assembly comprises a voltage transfer switch and a voltmeter, three voltage input terminals of said voltage transfer switch are electrically connected to said input terminals X1, X2, and X3, respectively, and two output terminals of said voltage transfer switch are electrically connected to two input terminals of said voltmeter, respectively.
5. The shore power measuring circuit according to claim 4, wherein said input terminals X1, X2, X3 are electrically connected to three voltage inputs of said multifunctional meter and three voltage inputs of said voltage transfer switch respectively through fuses FU1, FU2, FU 3.
6. The shore power measuring circuit according to any one of claims 1 to 5, further comprising a wireless communication circuit, wherein said wireless communication circuit is electrically connected to said multifunctional meter, and said wireless communication circuit is wirelessly connected to a background server.
7. The utility model provides a bank electricity measuring box which characterized in that: comprises a box body (1) with a box door capable of being opened or closed at the front side and a shore power measuring circuit as claimed in claim 6, wherein the shore power measuring circuit is arranged in the box body (1).
8. A shore power measuring system, characterized in that: the shore power measuring box comprises a background server, at least one intelligent terminal and at least one shore power measuring box as claimed in claim 7, wherein the wireless communication circuit is in wireless connection with the background server, and the background server is in wireless connection with the intelligent terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123119735.0U CN216560727U (en) | 2021-12-13 | 2021-12-13 | Shore power measuring circuit, shore power measuring box and shore power measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123119735.0U CN216560727U (en) | 2021-12-13 | 2021-12-13 | Shore power measuring circuit, shore power measuring box and shore power measuring system |
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| Publication Number | Publication Date |
|---|---|
| CN216560727U true CN216560727U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123119735.0U Active CN216560727U (en) | 2021-12-13 | 2021-12-13 | Shore power measuring circuit, shore power measuring box and shore power measuring system |
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| CN (1) | CN216560727U (en) |
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2021
- 2021-12-13 CN CN202123119735.0U patent/CN216560727U/en active Active
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