Quick-release distribution box for ship shore power

Abstract

The utility model relates to a quick release type distribution box of ship shore power, which relates to the technical field of distribution boxes and comprises a box body, a first phase line, a second phase line, a third phase line, a neutral line and a protective ground line are arranged in the box body, and one end of the first phase line, one end of the second phase line, one end of the third phase line and one end of the neutral line are jointly provided with a power input group. The power input group is used for being connected with a shore power system, the other end of the first phase line, the other end of the second phase line, the other end of the third phase line, the other end of the neutral line and the protective ground line are jointly provided with a low-voltage output group, and the low-voltage output group is used for outputting single-phase power. The first phase line, the second phase line, the third phase line, the neutral line and the protective ground line are jointly provided with a high-voltage output group, the high-voltage output group is used for outputting three-phase power, the first phase line and the neutral line are jointly provided with a direct-current output group, and the direct-current output group is used for outputting direct current. The power distribution box has the advantage that the shore power system can conveniently supply power to the ship through the power distribution box.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a quick-disassembly distribution box for ship shore power. Background Art

[0002] The distribution box is a power central equipment connecting the ship and the shore power system. When the ship docks at the wharf, the ship connects to the shore power supply, thereby deactivating the on-board generator set and reducing the normal maintenance or repair of the generator set.

[0003] Currently, the shore power system provides three-phase power with a supply voltage of 380V to the distribution box, and the distribution box provides an output of 380V three-phase power to the ship. When the ship's electrical equipment needs to use a power supply of other voltage levels, it is necessary for the staff to rewire the internal components of the distribution box, resulting in low efficiency of voltage level switching of the distribution box, and increasing potential safety hazards during the rewiring process by the staff. Content of the Utility Model

[0004] In order to facilitate the shore power system to supply power to the ship through the distribution box and expand the applicable range of the distribution box, this application provides a quick-disassembly distribution box for ship shore power.

[0005] The quick-disassembly distribution box for ship shore power provided by this application adopts the following technical solutions:

[0006] A quick-disassembly distribution box for ship shore power includes a box body. A first phase line, a second phase line, a third phase line, a neutral line and a protective ground wire are arranged in the box body. One ends of the first phase line, the second phase line, the third phase line and the neutral line are jointly provided with a power input group, and the power input group is used to connect with the shore power system. The other ends of the first phase line, the second phase line, the third phase line, the neutral line and the protective ground wire are jointly provided with a low-voltage output group, and the low-voltage output group is used to output single-phase power. The first phase line, the second phase line, the third phase line, the neutral line and the protective ground wire are jointly provided with a high-voltage output group, and the high-voltage output group is used to output three-phase power. The first phase line and the neutral line are jointly provided with a DC output group, and the DC output group is used to output direct current.

[0007] By adopting the above technical solution, the power output end of the shore power system is connected to the power input group. When the ship's electrical equipment is connected to the distribution box through the high-voltage output group, the distribution box provides three-phase power with a voltage level of 380V for the ship's electrical equipment. When the ship's electrical equipment is connected to the distribution box through the low-voltage output group, the distribution box provides single-phase power with a voltage level of 220V for the ship's electrical equipment. When the ship's electrical equipment is connected to the distribution box through the DC output group, the distribution box provides direct current with a voltage level of 36V for the ship's electrical equipment. The output voltage levels of different output interfaces of the distribution box are different, achieving the effect of expanding the applicable range of the distribution box, reducing the situation of re-wiring the distribution box to switch the output voltage level, reducing the situation of the staff re-wiring, improving the switching efficiency of the distribution box voltage level, and achieving the effect of facilitating the shore power system to supply power to the ship through the distribution box.

[0008] Preferably, triangular grooves are formed on the side walls of the box body. The triangular grooves include an upper inclined surface and a lower inclined surface. The upper inclined surface is located above the lower inclined surface. The bottom end of the upper inclined surface is connected to the top end of the lower inclined surface. The power input group, the low-voltage output group, the high-voltage output group, and the DC output group are all arranged on the upper inclined surface.

[0009] By adopting the above technical solution, the power input group, the low-voltage output group, the high-voltage output group, and the DC output group do not protrude from the side wall of the box body, reducing the situation of the power input group, the low-voltage output group, the high-voltage output group, and the DC output group being impacted.

[0010] Preferably, the power input group includes a group of input sockets and input copper bars. The input sockets and input copper bars are arranged on the upper inclined surface at the front side of the box body. An input circuit breaker is commonly connected in series on the input sockets and input copper bars. One end of the first phase wire, one end of the second phase wire, one end of the third phase wire, and one end of the neutral wire are all connected to the input circuit breaker.

[0011] By adopting the above technical solution, the input sockets and input copper bars are installed on the upper inclined surface at the front side of the box body, making the input sockets and input copper bars not easily impacted. The power output end of the shore power system is connected to the distribution box through the input sockets and input copper bars, and the input circuit breaker controls the on-off of the internal circuit of the distribution box.

[0012] Preferably, the high-voltage output group includes a first high-voltage socket, a second high-voltage socket, a third high-voltage socket, and a fourth high-voltage socket. The first high-voltage socket, the second high-voltage socket, the third high-voltage socket, and the fourth high-voltage socket are all arranged on the upper inclined surface at the rear side of the box body. A first high-voltage circuit breaker is connected in series on the first high-voltage socket, a second high-voltage circuit breaker is connected in series on the second high-voltage socket, a third high-voltage circuit breaker is connected in series on the third high-voltage socket, and a fourth high-voltage circuit breaker is connected in series on the fourth high-voltage socket. The first phase line, the second phase line, the third phase line, and the neutral line are all connected to the first high-voltage circuit breaker. The first phase line, the second phase line, the third phase line, and the protective ground wire are all connected to the second high-voltage circuit breaker, the third high-voltage circuit breaker, and the fourth high-voltage circuit breaker.

[0013] By adopting the above technical solution, when the input circuit breaker is closed and the first high-voltage circuit breaker is closed, the first high-voltage socket outputs three-phase electricity with a voltage of 380V and a current of 250A. When the input circuit breaker is closed and the second high-voltage circuit breaker is closed, the second high-voltage socket outputs three-phase electricity with a voltage of 380V and a current of 125A. When the input circuit breaker is closed and the third high-voltage circuit breaker is closed, the third high-voltage socket outputs three-phase electricity with a voltage of 380V and a current of 63A. When the input circuit breaker is closed and the fourth high-voltage circuit breaker is closed, the fourth high-voltage socket outputs three-phase electricity with a voltage of 380V and a current of 32A, achieving the effect of outputting three-phase electricity with different current levels and improving the applicable range of the distribution box.

[0014] Preferably, the low-voltage output group includes a first low-voltage socket, a second low-voltage socket, a third low-voltage socket, and a fourth low-voltage socket. The first low-voltage socket, the second low-voltage socket, the third low-voltage socket, and the fourth low-voltage socket are all arranged on the upper inclined surface on the left side of the box body. A first low-voltage circuit breaker is connected in series on the first low-voltage socket, a second low-voltage circuit breaker is connected in series on the second low-voltage socket, a third low-voltage circuit breaker is connected in series on the third low-voltage socket, and a fourth low-voltage circuit breaker is connected in series on the fourth low-voltage socket. The neutral line and the protective ground wire are all connected to the first low-voltage circuit breaker, the second low-voltage circuit breaker, the third low-voltage circuit breaker, and the fourth low-voltage circuit breaker. The first low-voltage circuit breaker is connected to the first phase line, the second low-voltage circuit breaker is connected to the second phase line, and the third low-voltage circuit breaker and the fourth low-voltage circuit breaker are both connected to the third phase line.

[0015] By adopting the above technical solution, when the input circuit breaker and the first low-voltage circuit breaker are closed, the first low-voltage socket outputs single-phase electricity with a voltage of 220V and a current of 63A. When the input circuit breaker and the second low-voltage circuit breaker are closed, the second low-voltage socket outputs single-phase electricity with a voltage of 220V and a current of 63A. When the input circuit breaker and the third low-voltage circuit breaker are closed, the third low-voltage socket outputs single-phase electricity with a voltage of 220V and a current of 63A. When the input circuit breaker and the fourth low-voltage circuit breaker are closed, the fourth low-voltage socket outputs single-phase electricity with a voltage of 220V and a current of 100A, achieving the effect of outputting single-phase electricity with different current levels and improving the applicable range of the distribution box.

[0016] Preferably, the DC output group includes a transformer and a plurality of DC sockets. The DC sockets are arranged on the upper inclined surface on the right side of the box body. An AC circuit breaker is commonly arranged on the first phase line and the neutral line. DC circuit breakers are connected in series on the DC sockets. The transformer is connected between the AC circuit breaker and the DC circuit breaker.

[0017] By adopting the above technical solution, when the input circuit breaker, the AC circuit breaker, and the DC circuit breaker are all closed, the alternating current is converted into direct current through transformation and output by the DC socket, achieving the effect of outputting direct current and improving the applicable range of the distribution box.

[0018] Preferably, a group of temperature control switches are connected to the first phase line, and a group of ventilation components are connected to the neutral line. One of the ventilation components is connected in series with one of the temperature control switches, and the other ventilation component is connected in series with the other temperature control switch. The temperature control switches and the ventilation components are all arranged inside the box body. A group of ventilation openings are opened on the box body. The ventilation openings are arranged opposite to each other, and filters are arranged inside the ventilation openings.

[0019] By adopting the above technical solution, after the input circuit breaker is turned on, the temperature control switch monitors the temperature inside the distribution box. When the temperature of the distribution box is too high, the temperature control switch closes, and the ventilation component starts, accelerating the gas flow inside and outside the distribution box to facilitate the heat dissipation of the distribution box. The filter filters the outside air, reducing the situation of dust and impurities entering the inside of the distribution box.

[0020] Preferably, an open mouth is opened on the front side of the box body, and a box door is detachably arranged on the open mouth. A waterproof adhesive layer is arranged on the outer wall of the box door, and the waterproof adhesive layer is used to seal the gap between the open mouth and the box door. A waterproof eaves is arranged on the top of the box body.

[0021] By adopting the above technical solution, when the box door closes the open mouth, the waterproof adhesive layer is filled between the open mouth and the box door. Furthermore, the waterproof adhesive layer seals the gap between the open mouth and the box door, reducing the situation of water entering the box body. The waterproof eaves shield the distribution box, making the rainwater flow to the outside of the box body along the waterproof eaves, reducing the situation of water entering the box body.

[0022] Preferably, a plurality of reinforcing ribs are provided on both the box body and the box door.

[0023] By adopting the above technical solution, the reinforcing ribs improve the structural strength of the distribution box, and when the distribution box is impacted, the deformation of the distribution box is reduced.

[0024] Preferably, a plurality of lifting lugs are fixedly provided at the top of the waterproof eaves, a base is provided at the bottom of the box body, a plurality of forklift openings are penetrated through the side wall of the base, and a plurality of shock-absorbing rubber pads are fixedly provided at the bottom of the base.

[0025] By adopting the above technical solution, the shock-absorbing rubber pads support the box body, the lifting lugs facilitate the connection with the lifting equipment to lift the distribution box, and the forklift openings facilitate the transfer of the distribution box by the forklift.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By providing the box body, the first phase wire, the second phase wire, the third phase wire, the neutral wire, the protective ground wire, the power input group, the low-voltage output group, the high-voltage output group and the DC output group, the output voltage levels of different output interfaces of the distribution box are different, achieving the effect of expanding the applicable range of the distribution box, reducing the situation of re-wiring the distribution box to switch the output voltage level, reducing the situation of the staff re-wiring, improving the switching efficiency of the distribution box voltage level, and achieving the effect of facilitating the shore power system to supply power to the ship through the distribution box;

[0028] 2. By providing the triangular groove, the upper inclined surface and the lower inclined surface, the situation of the power input group, the low-voltage output group, the high-voltage output group and the DC output group being impacted is reduced;

[0029] 3. By providing the temperature control switch, the ventilation component, the ventilation opening and the filter screen, the effect of accelerating the heat dissipation of the distribution box is achieved. Description of the Drawings

[0030] Figure 1 It is the circuit diagram of a quick-disassembly type distribution box for ship shore power in the embodiment of the present application.

[0031] Figure 2 It is the cross-sectional view showing the connection relationship between the box body and the box door in the embodiment of the present application.

[0032] Figure 3 It is the cross-sectional view showing the positional relationship between the upper inclined surface and the lower inclined surface in the embodiment of the present application.

[0033] Figure 4 It is the front view of a quick-disassembly type distribution box for ship shore power in the embodiment of the present application.

[0034] Figure 5 It is the rear view of a quick-disassembly type distribution box for ship shore power in the embodiment of the present application.

[0035] Figure 6 It is the left view of a quick-disassembly distribution box for ship shore power in an embodiment of the present application.

[0036] Figure 7 It is the right view of a quick-disassembly distribution box for ship shore power in an embodiment of the present application.

[0037] Description of reference numerals: 1, box body; 11, waterproof eaves; 111, lifting lug; 12, base; 121, forklift opening; 122, shock-absorbing rubber pad; 2, box door; 21, open end; 22, waterproof glue layer; 3, reinforcing rib; 4, triangular groove; 41, upper inclined surface; 42, lower inclined surface; 5, power input group; 51, input socket; 52, copper bar; 53, input circuit breaker; 6, high-voltage input group; 61, first high-voltage output socket; 611, first high-voltage circuit breaker; 62, second high-voltage output socket; 621, second high-voltage circuit breaker; 63, third high-voltage output socket; 631, third high-voltage circuit breaker; 64, fourth high-voltage output socket; 641, fourth high-voltage circuit breaker; 7, low-voltage input group; 71, first low-voltage output socket; 711, first low-voltage circuit breaker; 72, second low-voltage output socket; 721, second low-voltage circuit breaker; 73, third low-voltage output socket; 731, third low-voltage circuit breaker; 74, fourth low-voltage output socket; 741, fourth low-voltage circuit breaker; 8, DC output group; 81, DC socket; 811, DC circuit breaker; 82, transformer; 821, AC circuit breaker; 9, ventilation opening; 91, ventilation component; 92, filter screen. Detailed implementation manners

[0038] The following further elaborates on the present application in conjunction with the attached Figure 1-7 drawings for a more detailed description.

[0039] An embodiment of the present application discloses a quick-disassembly distribution box for ship shore power. Refer to Figures 1 to 7, including a box body 1, with a box door 2 installed on the front side of the box body 1. A number of reinforcing ribs 3 are installed on both the box body 1 and the box door 2. The reinforcing ribs 3 improve the structural strength of the distribution box. When the distribution box is impacted, the deformation of the distribution box is reduced. An opening 21 is provided on the front side of the box body 1, and the box door 2 is used to cover the opening 21, and the box door 2 is detachably connected to the box body 1. The outer wall of the box door 2 is wrapped with a waterproof adhesive layer 22, and the waterproof adhesive layer 22 is used to seal the gap between the opening 21 and the box door 2. When the box door 2 closes the opening 21, the waterproof adhesive layer 22 is filled between the opening 21 and the box door 2. Thus, the waterproof adhesive layer 22 seals the gap between the opening 21 and the box door 2, reducing the situation of water entering the box body 1. A waterproof eaves 11 is installed on the top of the box body 1, and the outer edge of the waterproof eaves 11 extends beyond the side wall of the box body 1. The waterproof eaves 11 shields the distribution box, causing rainwater to flow along the waterproof eaves to the outside of the box body 1, reducing the situation of water entering the box body 1. A number of lifting lugs 111 are installed on the top of the waterproof eaves 11, and the lifting lugs 111 facilitate the connection with lifting equipment to lift the distribution box. A base 12 is installed at the bottom of the box body 1, and a number of forklift openings 121 are provided through the side wall of the base 12. The forklift openings 121 facilitate the transfer of the distribution box by forklift. A number of shock-absorbing rubber pads 122 are installed at the bottom of the base 12, and the shock-absorbing rubber pads 122 support the box body 1. Triangular grooves 4 are provided on the four side walls of the box body 1. The triangular grooves 4 include an upper inclined surface 41 and a lower inclined surface 42. The upper inclined surface 41 is located above the lower inclined surface 42. The bottom end of the upper inclined surface 41 is connected to the top end of the lower inclined surface 42, and the included angle between the upper inclined surface 41 and the side wall of the box body 1 is 30°. A power input group 5 is installed on the upper inclined surface 41 on the front side of the box body 1, a high-voltage output group 6 is installed on the upper inclined surface 41 on the rear side of the box body 1, a low-voltage output group 7 is installed on the upper inclined surface 41 on the left side of the box body 1, and a DC output group 8 is installed on the upper inclined surface 41 on the right side of the box body 1. The power input group 5, the low-voltage output group 7, the high-voltage output group 6, and the DC output group 8 do not protrude beyond the side wall of the box body, reducing the situation of the power input group 5, the low-voltage output group 7, the high-voltage output group 6, and the DC output group 8 being impacted.

[0040] Reference Figure 1, the first phase line L1, the second phase line L2, the third phase line L3, the neutral line N, and the protective ground wire PE are installed inside the box body 1. One end of the first phase line L1, one end of the second phase line L2, one end of the third phase line L3, and one end of the neutral line N are commonly connected to the power input group 5, and the power input group 5 is used to connect to the shore power system. The other end of the first phase line L1, the other end of the second phase line L2, the other end of the third phase line L3, the other end of the neutral line N, and the protective ground wire PE are commonly connected to the low-voltage output group 7, and the low-voltage output group 7 is used to output single-phase electricity. The high-voltage output group 6 is connected to the first phase line L1, the second phase line L2, the third phase line L3, the neutral line N, and the protective ground wire PE, and the high-voltage output group 6 is used to output three-phase electricity. The DC output group 8 is connected to the first phase line L1 and the neutral line N, and the DC output group 8 is used to output direct current. Connect the power output end of the shore power system to the power input group 5. When the ship's electrical equipment is connected to the distribution box through the high-voltage output group 5, the distribution box provides three-phase electricity with a voltage level of 380V for the ship's electrical equipment. When the ship's electrical equipment is connected to the distribution box through the low-voltage output group 7, the distribution box provides single-phase electricity with a voltage level of 220V for the ship's electrical equipment. When the ship's electrical equipment is connected to the distribution box through the DC output group 8, the distribution box provides direct current with a voltage level of 36V for the ship's electrical equipment. The output voltage levels of different output interfaces of the distribution box are different, achieving the effect of expanding the applicable range of the distribution box, reducing the situation of the distribution box re-wiring to switch the output voltage level, reducing the situation of the staff re-wiring, improving the efficiency of the distribution box voltage level switching, and achieving the effect of facilitating the shore power system to supply power to the ship through the distribution box.

[0041] To connect the shore power system to the distribution box, refer to Figures 1 to 4, the power input group 5 includes a group of input sockets 51 and an input busbar 52. The input socket 51 is a 630A single-core socket XS1, and the input busbar 52 is a two-way 3*120 + 1*50 mm² copper busbar TMY. Both the input socket 51 and the input busbar 52 are installed on the upper inclined surface 41 on the front side of the box body 1. Installing the input socket 51 and the input busbar 52 on the upper inclined surface 41 on the front side of the box body 1 makes the input socket 51 and the input busbar 52 not easily be impacted. An input circuit breaker 53 is connected in series on the input socket 51 and the input busbar 52. The input circuit breaker 53 is a leakage circuit breaker QF1 with a voltage of 380V and a current of 630A, and the input circuit breaker 53 is installed on the box body 1. The input circuit breaker 53 is provided with a first live wire, a second live wire, a third live wire and a fourth neutral wire. The first live wire input terminal, the second live wire input terminal, and the third live wire input terminal of the input circuit breaker 53 are respectively connected to the three live wires of the input socket 51 and the three live wires of the input busbar 52, and the fourth neutral wire input terminal of the input circuit breaker 53 is correspondingly connected to the neutral wire of the input socket 51 and the neutral wire of the input busbar 52, so that the input socket 51 and the input busbar 52 are in parallel. The input terminal of the first phase line L1 is connected to the first live wire output terminal of the input circuit breaker 53, the input terminal of the second phase line L2 is connected to the second live wire output terminal of the input circuit breaker QF2, the input terminal of the third phase line L3 is connected to the third live wire output terminal of the input circuit breaker QF3, and the input terminal of the neutral line N is connected to the fourth neutral wire output terminal of the input circuit breaker QF4. The power output terminal of the shore power system is connected to the distribution box through the input socket 51 and the input busbar 52, and the input circuit breaker 53 controls the on and off of the internal circuit of the distribution box, which is convenient for cutting off the power supply of the distribution box as a whole.

[0042] To output three-phase electricity with different current levels, refer to Figures 1 to 5, the high-voltage output group 6 includes a first high-voltage socket 61, a second high-voltage socket 62, a third high-voltage socket 63, and a fourth high-voltage socket 64. The first high-voltage socket 61 is a high-voltage direct plug socket XS2 with an output current of 250A. The second high-voltage socket 62 is a high-voltage direct plug socket XS3 with an output current of 125A. The third high-voltage socket 63 is a high-voltage direct plug socket XS4 with an output current of 63A. The fourth high-voltage socket 64 is a high-voltage direct plug socket XS5 with an output current of 32A. The first high-voltage socket 61, the second high-voltage socket 62, the third high-voltage socket 63, and the fourth high-voltage socket 64 are all installed on the upper inclined surface 41 at the rear side of the box body 1, making the first high-voltage socket 61, the second high-voltage socket 62, the third high-voltage socket 63, and the fourth high-voltage socket 64 not easily be impacted. A first high-voltage circuit breaker 611 is connected in series on the first high-voltage socket 61. The first high-voltage circuit breaker 611 is a leakage circuit breaker QF2 with a voltage of 380V and a current of 250A. A second high-voltage circuit breaker 621 is connected in series on the second high-voltage socket 62. The second high-voltage circuit breaker 621 is a leakage circuit breaker QF3 with a voltage of 380V and a current of 125A. A third high-voltage circuit breaker 631 is connected in series on the third high-voltage socket 63. The third high-voltage circuit breaker 631 is a leakage circuit breaker QF4 with a voltage of 380V and a current of 63A. A fourth high-voltage circuit breaker 641 is connected in series on the fourth high-voltage socket 64. The fourth high-voltage circuit breaker 641 is a leakage circuit breaker QF5 with a voltage of 380V and a current of 32A. The first high-voltage circuit breaker 611, the second high-voltage circuit breaker 621, the third high-voltage circuit breaker 631, and the fourth high-voltage circuit breaker 641 are all installed on the box body 1. The first high-voltage live wire, the second high-voltage live wire, the third high-voltage live wire, and the fourth high-voltage neutral wire are all provided inside the first high-voltage circuit breaker 611, the second high-voltage circuit breaker 621, the third high-voltage circuit breaker 631, and the fourth high-voltage circuit breaker 641. The first high-voltage live wire of the first high-voltage circuit breaker 611, the first high-voltage live wire of the second high-voltage circuit breaker 621, the first high-voltage live wire of the third high-voltage circuit breaker 631, and the first high-voltage live wire of the fourth high-voltage circuit breaker 641 are all connected to the first phase line L1. The second high-voltage live wire of the first high-voltage circuit breaker 611, the second high-voltage live wire of the second high-voltage circuit breaker 621, the second high-voltage live wire of the third high-voltage circuit breaker 631, and the second high-voltage live wire of the fourth high-voltage circuit breaker 641 are all connected to the second phase line L2. The third high-voltage live wire of the first high-voltage circuit breaker 611, the third high-voltage live wire of the second high-voltage circuit breaker 621, the third high-voltage live wire of the third high-voltage circuit breaker 631, and the third high-voltage live wire of the fourth high-voltage circuit breaker 641 are all connected to the third phase line L3. The fourth high-voltage neutral wire of the first high-voltage circuit breaker 611 is connected to the neutral line N and is all connected to the first high-voltage circuit breaker. The fourth high-voltage neutral wires of the second high-voltage circuit breaker 621, the third high-voltage circuit breaker 631, and the fourth high-voltage circuit breaker 641 are all connected to the protective ground wire PE.When the input circuit breaker 53 is closed and the first high-voltage circuit breaker 611 is closed, the first high-voltage socket 61 outputs three-phase electricity with a voltage of 380V and a current of 250A. When the input circuit breaker 53 is closed and the second high-voltage circuit breaker 621 is closed, the second high-voltage socket 62 outputs three-phase electricity with a voltage of 380V and a current of 125A. When the input circuit breaker 53 is closed and the third high-voltage circuit breaker 631 is closed, the third high-voltage socket 63 outputs three-phase electricity with a voltage of 380V and a current of 63A. When the input circuit breaker 53 is closed and the fourth high-voltage circuit breaker 641 is closed, the fourth high-voltage socket 64 outputs three-phase electricity with a voltage of 380V and a current of 32A. The effect of outputting three-phase electricity with different current levels is achieved, and the applicable range of the distribution box is improved.

[0043] To output single-phase electricity with different current levels, refer to Figures 1 to 6, the low-voltage output group 7 includes a first low-voltage socket 71, a second low-voltage socket 72, a third low-voltage socket 73, and a fourth low-voltage socket 74. The first low-voltage socket 71 is a low-voltage direct plug socket XS6 with an output current of 63A. The second low-voltage socket 72 is a low-voltage direct plug socket XS7 with an output current of 63A. The third low-voltage socket 73 is a low-voltage direct plug socket XS8 with an output current of 63A. The fourth low-voltage socket 74 is a low-voltage direct plug socket XS9 with an output current of 100A. The first low-voltage socket 71, the second low-voltage socket 72, the third low-voltage socket 73, and the fourth low-voltage socket 74 are all installed on the upper inclined surface 41 on the left side of the box body 1 to reduce the situation of the first low-voltage socket 71, the second low-voltage socket 72, the third low-voltage socket 73, and the fourth low-voltage socket 74 being impacted. A first low-voltage circuit breaker 711 is connected in series on the first low-voltage socket 71. The first low-voltage circuit breaker 711 is a leakage circuit breaker QF6 with a voltage of 220V and a current of 63A. A second low-voltage circuit breaker 721 is connected in series on the second low-voltage socket 72. The second low-voltage circuit breaker 721 is a leakage circuit breaker QF7 with a voltage of 220V and a current of 63A. A third low-voltage circuit breaker 731 is connected in series on the third low-voltage socket 73. The third low-voltage circuit breaker 731 is a leakage circuit breaker QF8 with a voltage of 220V and a current of 63A. A fourth low-voltage circuit breaker 741 is connected in series on the fourth low-voltage socket 74. The fourth low-voltage circuit breaker 741 is a leakage circuit breaker QF9 with a voltage of 220V and a current of 100A. The first low-voltage circuit breaker 711, the second low-voltage circuit breaker 721, the third low-voltage circuit breaker 731, and the fourth low-voltage circuit breaker 741 are all installed on the box body 1. The first low-voltage circuit breaker 711, the second low-voltage circuit breaker 721, the third low-voltage circuit breaker 731, and the fourth low-voltage circuit breaker 741 all have a low-voltage live wire, a low-voltage neutral wire, and a low-voltage ground wire. The low-voltage neutral wires of the first low-voltage circuit breaker 711, the second low-voltage circuit breaker 721, the third low-voltage circuit breaker 731, and the fourth low-voltage circuit breaker 741 are all connected to the neutral line N. The low-voltage ground wires of the first low-voltage circuit breaker 711, the second low-voltage circuit breaker 721, the third low-voltage circuit breaker 731, and the fourth low-voltage circuit breaker 741 are all connected to the protective ground wire PE. The low-voltage live wire of the first low-voltage circuit breaker 711 is connected to the first phase line L1. The second low-voltage circuit breaker 721 is connected to the second phase line L2. The third low-voltage circuit breaker 731 and the fourth low-voltage circuit breaker 741 are both connected to the third phase line L3. When the input circuit breaker 53 is closed and the first low-voltage circuit breaker 711 is closed, the first low-voltage socket 71 outputs single-phase electricity with a voltage of 220V and a current of 63A. When the input circuit breaker 53 is closed and the second low-voltage circuit breaker 721 is closed, the second low-voltage socket 72 outputs single-phase electricity with a voltage of 220V and a current of 63A. When the input circuit breaker 53 is closed and the third low-voltage circuit breaker 731 is closed, the third low-voltage socket 73 outputs single-phase electricity with a voltage of 220V and a current of 63A.When the input circuit breaker 53 is closed and the fourth low-voltage circuit breaker 741 is closed, the fourth low-voltage socket 74 outputs single-phase electricity with a voltage of 220V and a current of 100A. This achieves the effect of outputting single-phase electricity with different current levels and improves the applicable range of the distribution box.

[0044] To output direct current with different current levels, referring to Figures 1 to 7 , the DC output group 8 includes a transformer 82 and a group of DC sockets 81. One of the DC sockets 81 is a DC plug-in socket XS10 with an output current of 63A, and the other DC socket 81 is a DC plug-in socket XS11 with an output current of 32A. The transformer 82 is an isolation transformer T. The DC sockets 81 and the transformer 82 are installed on the upper inclined surface 41 on the right side of the box body 1, reducing the situation where the DC sockets 8 and the transformer 82 are impacted. A group of DC circuit breakers 811 and an AC circuit breaker 822 are installed on the box body 1. One of the DC circuit breakers 811 is a circuit breaker QF10 with a voltage of 36V and a current of 63A, and the other DC circuit breaker 811 is a circuit breaker QF11 with a voltage of 36V and a current of 32A. The AC circuit breaker 821 is a circuit breaker QF12 with a voltage of 220V and a current of 32A. The DC plug-in socket XS10 is connected in series with the DC circuit breaker QF10, and the DC plug-in socket XS11 is connected in series with the DC circuit breaker QF11. The DC circuit breaker QF10 and the DC circuit breaker QF11 are connected in parallel on the DC side of the transformer 82. The AC side of the transformer 82 is connected to the AC circuit breaker QF12, and the AC circuit breaker QF12 is connected to the first phase line L1 and the neutral line N. When the input circuit breaker 53, the AC circuit breaker QF12, and the DC circuit breaker QF10 are all closed, the alternating current is converted into direct current through transformation and output by the DC plug-in socket XS10. The DC plug-in socket XS10 outputs direct current with a voltage of 36V and a current of 63A. When the input circuit breaker 53, the AC circuit breaker QF12, and the DC circuit breaker QF11 are all closed, the alternating current is converted into direct current through transformation and output by the DC plug-in socket XS11. The DC plug-in socket XS11 outputs direct current with a voltage of 36V and a current of 32A. This achieves the effect of outputting direct current with different current levels and improves the applicable range of the distribution box.

[0045] To facilitate the heat dissipation of the distribution box, referring to Figure 1, a ventilation opening 9 is provided on the box body 1. The ventilation openings 9 are arranged oppositely. A ventilation component 91 and a filter net 92 are installed in the ventilation opening 9. The ventilation component 91 is a fan M. One of the ventilation openings 9 is the air inlet end, and the other ventilation opening 9 is the air outlet end. The air outlet side of one of the ventilation components 91 is located inside the box body 1, and the air inlet side of one of the ventilation components 91 is located inside the box body 1. A group of fans M are connected in parallel to the neutral line N, and a temperature control switch S is connected in series on the fan M. A group of temperature control switches S are connected in parallel to the first phase line L1. The temperature control switch S is installed inside the box body 1. When the input circuit breaker 53 is turned on and the temperature of the distribution box is too high, the temperature control switch S closes, and the fan M starts, accelerating the flow of gas inside and outside the distribution box and facilitating the heat dissipation of the distribution box. The filter net 92 filters the outside air, reducing the situation of dust and impurities entering the inside of the distribution box.

[0046] The implementation principle of a quick-disconnect distribution box for ship shore power in an embodiment of this application is as follows: The power output end of the shore power system is connected to the distribution box through the input socket 51 and the input copper bar 52, and the input circuit breaker 53 controls the on-off of the internal circuit of the distribution box. When the input circuit breaker 53 and the first high-voltage circuit breaker 611 are closed, the first high-voltage socket 61 outputs three-phase power with a voltage of 380V and a current of 250A. When the input circuit breaker 53 and the second high-voltage circuit breaker 621 are closed, the second high-voltage socket 62 outputs three-phase power with a voltage of 380V and a current of 125A. When the input circuit breaker 53 and the third high-voltage circuit breaker 631 are closed, the third high-voltage socket 63 outputs three-phase power with a voltage of 380V and a current of 63A. When the input circuit breaker 53 and the fourth high-voltage circuit breaker 641 are closed, the fourth high-voltage socket 64 outputs three-phase power with a voltage of 380V and a current of 32A. When the input circuit breaker 53 and the first low-voltage circuit breaker 711 are closed, the first low-voltage socket 71 outputs single-phase power with a voltage of 220V and a current of 63A. When the input circuit breaker 53 and the second low-voltage circuit breaker 721 are closed, the second low-voltage socket 72 outputs single-phase power with a voltage of 220V and a current of 63A. When the input circuit breaker 53 and the third low-voltage circuit breaker 731 are closed, the third low-voltage socket 73 outputs single-phase power with a voltage of 220V and a current of 63A. When the input circuit breaker 53 and the fourth low-voltage circuit breaker 741 are closed, the fourth low-voltage socket 74 outputs single-phase power with a voltage of 220V and a current of 100A. When the input circuit breaker 53, the AC circuit breaker QF12, and the DC circuit breaker QF10 are all closed, the alternating current is converted into direct current through transformation and output by the DC direct plug socket XS10. The DC direct plug socket XS10 outputs direct current with a voltage of 36V and a current of 63A. When the input circuit breaker 53, the AC circuit breaker QF12, and the DC circuit breaker QF11 are all closed, the alternating current is converted into direct current through transformation and output by the DC direct plug socket XS11. The DC direct plug socket XS11 outputs direct current with a voltage of 36V and a current of 32A. The voltage levels and circuit levels of different output interfaces of the distribution box are different, achieving the effect of expanding the applicable range of the distribution box, reducing the situation of re-wiring the distribution box to switch the output voltage level, reducing the situation of staff re-wiring, improving the efficiency of switching the voltage level of the distribution box, and achieving the effect of facilitating the shore power system to supply power to the ship through the distribution box.

[0047] The above are all the preferred embodiments of this application. Without limiting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A quick-detachable distribution box for ship shore power, comprising a box body, characterized in that: A first phase line, a second phase line, a third phase line, a neutral line and a protective ground line are arranged in the box; a power input group is arranged at one end of the first phase line, one end of the second phase line, one end of the third phase line and one end of the neutral line, and the power input group is used to be connected to the shore power system; a low-voltage output group is arranged at the other end of the first phase line, the other end of the second phase line, the other end of the third phase line, the other end of the neutral line and the protective ground line, and the low-voltage output group is used to output single-phase electricity; a high-voltage output group is arranged at the first phase line, the second phase line, the third phase line, the neutral line and the protective ground line, and the high-voltage output group is used to output three-phase electricity; a DC output group is arranged at the first phase line and the neutral line, and the DC output group is used to output DC power.

2. The quick-detachable distribution box for ship shore power according to claim 1 is characterized by: The side walls of the box body are all provided with triangular grooves, and the triangular grooves include an upper inclined surface and a lower inclined surface. The upper inclined surface is located above the lower inclined surface, and the bottom end of the upper inclined surface is connected to the top end of the lower inclined surface. The power input group, low voltage output group, high voltage output group and DC output group are all arranged on the upper inclined surface.

3. The quick-detachable distribution box for ship shore power according to claim 2 is characterized by: The power input group includes a group of input sockets and input copper bars, which are arranged on the upper inclined surface on the front side of the box body. The input sockets and the input copper bars are connected in series with an input circuit breaker, and one end of the first phase line, one end of the second phase line, one end of the third phase line and one end of the neutral line are all connected to the input circuit breaker.

4. A quick-detachable distribution box for ship shore power according to claim 2, characterized in that: The high-voltage output group includes a first high-voltage socket, a second high-voltage socket, a third high-voltage socket and a fourth high-voltage socket, the first high-voltage socket, the second high-voltage socket, the third high-voltage socket and the fourth high-voltage socket are all arranged on the upper inclined surface on the rear side of the box body, the first high-voltage socket is connected in series with a first high-voltage circuit breaker, the second high-voltage socket is connected in series with a second high-voltage circuit breaker, the third high-voltage socket is connected in series with a third high-voltage circuit breaker, and the fourth high-voltage socket is connected in series with a fourth high-voltage circuit breaker, the first phase line, the second phase line, the third phase line and the neutral line are all connected to the first high-voltage circuit breaker, and the first phase line, the second phase line, the third phase line and the protective ground line are all connected to the second high-voltage circuit breaker, the third high-voltage circuit breaker and the fourth high-voltage circuit breaker.

5. The quick-detachable distribution box for ship shore power according to claim 2, characterized in that: The low-voltage output group includes a first low-voltage socket, a second low-voltage socket, a third low-voltage socket and a fourth low-voltage socket. The first low-voltage socket, the second low-voltage socket, the third low-voltage socket and the fourth low-voltage socket are all arranged on the upper inclined surface on the left side of the box. The first low-voltage socket is connected in series with a first low-voltage circuit breaker, the second low-voltage socket is connected in series with a second low-voltage circuit breaker, the third low-voltage socket is connected in series with a third low-voltage circuit breaker, and the fourth low-voltage socket is connected in series with a fourth low-voltage circuit breaker. The neutral line and the protective ground line are both connected to the first low-voltage circuit breaker, the second low-voltage circuit breaker, the third low-voltage circuit breaker and the fourth low-voltage circuit breaker. The first low-voltage circuit breaker is connected to the first phase line, the second low-voltage circuit breaker is connected to the second phase line, and the third low-voltage circuit breaker and the fourth low-voltage circuit breaker are both connected to the third phase line.

6. A quick-detachable distribution box for ship shore power according to claim 2, characterized in that: The DC output group includes a transformer and a plurality of DC sockets, wherein the DC sockets are arranged on the upper inclined surface on the right side of the box body, an AC circuit breaker is commonly arranged on the first phase line and the neutral line, and the DC sockets are all connected in series with a DC circuit breaker, and the transformer is connected between the AC circuit breaker and the DC circuit breaker.

7. The quick-detachable distribution box for ship shore power according to claim 1, characterized in that: A group of temperature-controlled switches are connected to the first phase line, and a group of ventilation components are connected to the neutral line. One of the ventilation components is connected in series with one of the temperature-controlled switches, and the other ventilation component is connected in series with the other temperature-controlled switch. The temperature-controlled switches and the ventilation components are both arranged in a box body. A group of ventilation ports are opened on the box body, and the ventilation ports are arranged opposite to each other. Filters are arranged in the ventilation ports.

8. The quick-detachable distribution box for ship shore power according to claim 1, characterized in that: The front side of the box body is provided with an opening, a box door is detachably arranged on the opening, a waterproof adhesive layer is arranged on the outer wall of the box door, and the waterproof adhesive layer is used for sealing the gap between the opening and the box door, and a waterproof eaves is arranged on the top of the box body.

9. A quick-detachable distribution box for ship shore power according to claim 8, characterized in that: A plurality of reinforcing ribs are arranged on the box body and the box door.

10. A quick-detachable distribution box for ship shore power according to claim 8, characterized in that: A plurality of lifting ears are fixedly arranged on the top of the waterproof eaves, a base is arranged at the bottom of the box body, a plurality of forklift openings are penetrated through the side wall of the base, and a plurality of shock-absorbing rubber pads are fixedly arranged at the bottom of the base.

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